Add presentproto 1.0

16 files changed, 21246 insertions, 0 deletions

diff --git a/proto/presentproto/ChangeLog b/proto/presentproto/ChangeLog
new file mode 100644
index 000000000..95e476f44
--- /dev/null
+++ b/proto/presentproto/ChangeLog
@@ -0,0 +1,112 @@
+commit 584d8b87e245e900a3a7ee448d51ba6f3c74ce2b
+Author: Keith Packard <keithp@keithp.com>
+Date:   Thu Oct 31 17:38:27 2013 -0700
+
+    Update to version 1.0
+    
+    Add presentproto.h updates for current protocol.
+    Finish encoding specification.
+    
+    Signed-off-by: Keith Packard <keithp@keithp.com>
+
+commit 32f17e1d4411f784a9b76bad8288f7e657134732
+Author: Keith Packard <keithp@keithp.com>
+Date:   Tue Oct 29 10:42:33 2013 -0700
+
+    Clarify when pixmaps are assured of being idle
+    
+    Pixmaps will definitely be idle after the next PresentPixmap operation
+    completes; the original text was vague about whether it was the
+    execution of the request or the completion of the operation.
+    
+    Signed-off-by: Keith Packard <keithp@keithp.com>
+
+commit b32994fac679ee53362d457e834dca539d5a1ff8
+Author: Keith Packard <keithp@keithp.com>
+Date:   Sat Oct 19 20:48:04 2013 -0700
+
+    Clarify role and responsibility for client and server regarding fences
+    
+    Signed-off-by: Keith Packard <keithp@keithp.com>
+
+commit 843b6a31180641504228c9603c8a771284a854d1
+Author: Keith Packard <keithp@keithp.com>
+Date:   Sat Oct 19 20:47:58 2013 -0700
+
+    Add .gitignore
+    
+    Signed-off-by: Keith Packard <keithp@keithp.com>
+
+commit 5d11236c1951d6f2618eb420702f20455f165a0b
+Author: Keith Packard <keithp@keithp.com>
+Date:   Fri Oct 18 16:42:20 2013 -0700
+
+    PresentRegion->PresentPixmap, define options, add UST mode
+    
+    Changes the name of the PresentPixmap request from PresentRegion in
+    anticipation of future additions of non-pixmap sourced updates (YUV
+    images in particular).
+    
+    Adds definitions for all of the new PresentPixmap options.
+    
+    Adds PresentQueryCapabilities to provide applications the ability to
+    learn what the underlying hardware can support. One requirement for
+    any capability is that the X server must do something sensible even if
+    the client behaves as if a capability is supported when it is not.
+    
+    Adds IdleNotify events. As pixmaps can go idle in any order, it's
+    important for applications to know which pixmap to use next. We cannot
+    use fences as the fence itself may not be signaled for some time after
+    the X server has figured out which pixmap to idle.
+    
+    Note that the encoding and header files are not entirely up to date now.
+    
+    Signed-off-by: Keith Packard <keithp@keithp.com>
+
+commit f15c4568f2b4e50e80bf5cf650bde13441bb0b72
+Author: Keith Packard <keithp@keithp.com>
+Date:   Wed Jul 24 21:07:20 2013 -0700
+
+    Start reworking for present redirection.
+    
+    In PresentRegion, add the PresentNotify list, add explicit CRTC.
+    In PresentRedirectNotify, add CRTC and update_window values
+    
+    Signed-off-by: Keith Packard <keithp@keithp.com>
+
+commit ec9db7408ff742312677e40b0b9a0239a07ab43c
+Author: Keith Packard <keithp@keithp.com>
+Date:   Mon Jul 15 10:55:48 2013 -0700
+
+    Remove SBC, use CompleteNotify for both Region and NotifyMSC
+    
+    SBC is entire a client-side notion, so remove it from the protocol.
+    No need to have two events with the same content, but we do need to
+    tell which request generated the event so stick a new field in some
+    spare bytes
+    
+    Signed-off-by: Keith Packard <keithp@keithp.com>
+
+commit f1950e6f10a61318f22083900602d9c920d00667
+Author: Keith Packard <keithp@keithp.com>
+Date:   Sat Jul 13 02:40:11 2013 -0700
+
+    Add NotifyMSC. Add serial numbers to Complete and MSC events
+    
+    Signed-off-by: Keith Packard <keithp@keithp.com>
+
+commit 5e7ebeb7e29be01b8046f30e93891180187e59c2
+Author: Keith Packard <keithp@keithp.com>
+Date:   Fri Jul 12 11:14:46 2013 -0700
+
+    Document how target-msc, divisor and remainder work
+    
+    Signed-off-by: Keith Packard <keithp@keithp.com>
+
+commit 921029e55ec3ff90d42905df258046e6f83fa4b6
+Author: Keith Packard <keithp@keithp.com>
+Date:   Thu Jul 11 15:52:50 2013 -0700
+
+    Initial Present protocol specification
+    
+    Signed-off-by: Keith Packard <keithp@keithp.com>
diff --git a/proto/presentproto/INSTALL b/proto/presentproto/INSTALL
new file mode 100644
index 000000000..8b82ade08
--- /dev/null
+++ b/proto/presentproto/INSTALL
@@ -0,0 +1,291 @@
+Installation Instructions
+*************************
+
+Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005,
+2006, 2007, 2008 Free Software Foundation, Inc.
+
+   This file is free documentation; the Free Software Foundation gives
+unlimited permission to copy, distribute and modify it.
+
+Basic Installation
+==================
+
+   Briefly, the shell commands `./configure; make; make install' should
+configure, build, and install this package.  The following
+more-detailed instructions are generic; see the `README' file for
+instructions specific to this package.
+
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+It may also create one or more `.h' files containing system-dependent
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+
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+=====================
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+====================================
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+   You can compile the package for more than one kind of computer at the
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+this:
+
+     ./configure CC="gcc -arch i386 -arch x86_64 -arch ppc -arch ppc64" \
+                 CXX="g++ -arch i386 -arch x86_64 -arch ppc -arch ppc64" \
+                 CPP="gcc -E" CXXCPP="g++ -E"
+
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+==================
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+Particular systems
+==================
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+   On HP-UX, the default C compiler is not ANSI C compatible.  If GNU
+CC is not installed, it is recommended to use the following options in
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+
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+
+     ./configure CC="cc"
+
+and if that doesn't work, try
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+==========================
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+================
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+==================
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+   Variables not defined in a site shell script can be set in the
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+an Autoconf bug.  Until the bug is fixed you can use this workaround:
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+     CONFIG_SHELL=/bin/bash /bin/bash ./configure CONFIG_SHELL=/bin/bash
+
+`configure' Invocation
+======================
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+   `configure' recognizes the following options to control how it
+operates.
+
+`--help'
+`-h'
+     Print a summary of all of the options to `configure', and exit.
+
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+     `configure', and exit.  The `short' variant lists options used
+     only in the top level, while the `recursive' variant lists options
+     also present in any nested packages.
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+`-V'
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+     script, and exit.
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+     Enable the cache: use and save the results of the tests in FILE,
+     traditionally `config.cache'.  FILE defaults to `/dev/null' to
+     disable caching.
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+`--config-cache'
+`-C'
+     Alias for `--cache-file=config.cache'.
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+     Do not print messages saying which checks are being made.  To
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+     files.
+
+`configure' also accepts some other, not widely useful, options.  Run
+`configure --help' for more details.
+
diff --git a/proto/presentproto/Makefile b/proto/presentproto/Makefile
new file mode 100644
index 000000000..a1fcfa766
--- /dev/null
+++ b/proto/presentproto/Makefile
@@ -0,0 +1,7 @@
+# $OpenBSD: Makefile,v 1.1 2014/04/13 11:02:02 matthieu Exp $
+
+HEADERS_SUBDIR=	X11/extensions/
+HEADERS=	presentproto.h presenttokens.h
+PKGCONFIG=	presentproto.pc
+
+.include <bsd.xorg.mk>
diff --git a/proto/presentproto/Makefile.am b/proto/presentproto/Makefile.am
new file mode 100644
index 000000000..f6a6d3f27
--- /dev/null
+++ b/proto/presentproto/Makefile.am
@@ -0,0 +1,19 @@
+presentdir = $(includedir)/X11/extensions
+present_HEADERS = presentproto.h presenttokens.h
+
+pkgconfigdir = $(libdir)/pkgconfig
+pkgconfig_DATA = presentproto.pc
+
+dist_doc_DATA = presentproto.txt
+
+MAINTAINERCLEANFILES = ChangeLog INSTALL
+
+.PHONY: ChangeLog INSTALL
+
+INSTALL:
+	$(INSTALL_CMD)
+
+ChangeLog:
+	$(CHANGELOG_CMD)
+
+dist-hook: ChangeLog INSTALL
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new file mode 100644
index 000000000..92b607a12
--- /dev/null
+++ b/proto/presentproto/Makefile.in
@@ -0,0 +1,771 @@
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+dist dist-all:
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+# This target untars the dist file and tries a VPATH configuration.  Then
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+	*.tar.xz*) \
+	  xz -dc $(distdir).tar.xz | $(am__untar) ;;\
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+	  GZIP=$(GZIP_ENV) gzip -dc $(distdir).shar.gz | unshar ;;\
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+	  unzip $(distdir).zip ;;\
+	esac
+	chmod -R a-w $(distdir)
+	chmod u+w $(distdir)
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+	dc_install_base=`$(am__cd) $(distdir)/_inst && pwd | sed -e 's,^[^:\\/]:[\\/],/,'` \
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+	  && $(am__cd) $(distdir)/_build \
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+	    $(AM_DISTCHECK_CONFIGURE_FLAGS) \
+	    $(DISTCHECK_CONFIGURE_FLAGS) \
+	  && $(MAKE) $(AM_MAKEFLAGS) \
+	  && $(MAKE) $(AM_MAKEFLAGS) dvi \
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+	  && $(MAKE) $(AM_MAKEFLAGS) install \
+	  && $(MAKE) $(AM_MAKEFLAGS) installcheck \
+	  && $(MAKE) $(AM_MAKEFLAGS) uninstall \
+	  && $(MAKE) $(AM_MAKEFLAGS) distuninstallcheck_dir="$$dc_install_base" \
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+	  && chmod -R a-w "$$dc_install_base" \
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+	       (cd ../.. && umask 077 && mkdir "$$dc_destdir") \
+	       && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" install \
+	       && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" uninstall \
+	       && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" \
+	            distuninstallcheck_dir="$$dc_destdir" distuninstallcheck; \
+	      } || { rm -rf "$$dc_destdir"; exit 1; }) \
+	  && rm -rf "$$dc_destdir" \
+	  && $(MAKE) $(AM_MAKEFLAGS) dist \
+	  && rm -rf $(DIST_ARCHIVES) \
+	  && $(MAKE) $(AM_MAKEFLAGS) distcleancheck \
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+	  || exit 1
+	$(am__post_remove_distdir)
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+	  sed -e 1h -e 1s/./=/g -e 1p -e 1x -e '$$p' -e '$$x'
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+	  echo 'ERROR: trying to run $@ with an empty' \
+	       '$$(distuninstallcheck_dir)' >&2; \
+	  exit 1; \
+	}; \
+	$(am__cd) '$(distuninstallcheck_dir)' || { \
+	  echo 'ERROR: cannot chdir into $(distuninstallcheck_dir)' >&2; \
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+	test `$(am__distuninstallcheck_listfiles) | wc -l` -eq 0 \
+	   || { echo "ERROR: files left after uninstall:" ; \
+	        if test -n "$(DESTDIR)"; then \
+	          echo "  (check DESTDIR support)"; \
+	        fi ; \
+	        $(distuninstallcheck_listfiles) ; \
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+distcleancheck: distclean
+	@if test '$(srcdir)' = . ; then \
+	  echo "ERROR: distcleancheck can only run from a VPATH build" ; \
+	  exit 1 ; \
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+	@test `$(distcleancheck_listfiles) | wc -l` -eq 0 \
+	  || { echo "ERROR: files left in build directory after distclean:" ; \
+	       $(distcleancheck_listfiles) ; \
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+install-am: all-am
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
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diff --git a/proto/presentproto/aclocal.m4 b/proto/presentproto/aclocal.m4
new file mode 100644
index 000000000..dab1afe37
--- /dev/null
+++ b/proto/presentproto/aclocal.m4
@@ -0,0 +1,3088 @@
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+AC_SUBST([CYGPATH_W])
+
+# Define the identity of the package.
+dnl Distinguish between old-style and new-style calls.
+m4_ifval([$2],
+[AC_DIAGNOSE([obsolete],
+             [$0: two- and three-arguments forms are deprecated.])
+m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
+ AC_SUBST([PACKAGE], [$1])dnl
+ AC_SUBST([VERSION], [$2])],
+[_AM_SET_OPTIONS([$1])dnl
+dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
+m4_if(
+  m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
+  [ok:ok],,
+  [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
+ AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
+ AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
+
+_AM_IF_OPTION([no-define],,
+[AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
+ AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
+
+# Some tools Automake needs.
+AC_REQUIRE([AM_SANITY_CHECK])dnl
+AC_REQUIRE([AC_ARG_PROGRAM])dnl
+AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
+AM_MISSING_PROG([AUTOCONF], [autoconf])
+AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
+AM_MISSING_PROG([AUTOHEADER], [autoheader])
+AM_MISSING_PROG([MAKEINFO], [makeinfo])
+AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
+AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
+AC_REQUIRE([AC_PROG_MKDIR_P])dnl
+# For better backward compatibility.  To be removed once Automake 1.9.x
+# dies out for good.  For more background, see:
+# <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
+# <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
+AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
+# We need awk for the "check" target.  The system "awk" is bad on
+# some platforms.
+AC_REQUIRE([AC_PROG_AWK])dnl
+AC_REQUIRE([AC_PROG_MAKE_SET])dnl
+AC_REQUIRE([AM_SET_LEADING_DOT])dnl
+_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
+	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
+			     [_AM_PROG_TAR([v7])])])
+_AM_IF_OPTION([no-dependencies],,
+[AC_PROVIDE_IFELSE([AC_PROG_CC],
+		  [_AM_DEPENDENCIES([CC])],
+		  [m4_define([AC_PROG_CC],
+			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
+AC_PROVIDE_IFELSE([AC_PROG_CXX],
+		  [_AM_DEPENDENCIES([CXX])],
+		  [m4_define([AC_PROG_CXX],
+			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
+AC_PROVIDE_IFELSE([AC_PROG_OBJC],
+		  [_AM_DEPENDENCIES([OBJC])],
+		  [m4_define([AC_PROG_OBJC],
+			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
+AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
+		  [_AM_DEPENDENCIES([OBJCXX])],
+		  [m4_define([AC_PROG_OBJCXX],
+			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
+])
+AC_REQUIRE([AM_SILENT_RULES])dnl
+dnl The testsuite driver may need to know about EXEEXT, so add the
+dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
+dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
+AC_CONFIG_COMMANDS_PRE(dnl
+[m4_provide_if([_AM_COMPILER_EXEEXT],
+  [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
+])
+
+dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
+dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
+dnl mangled by Autoconf and run in a shell conditional statement.
+m4_define([_AC_COMPILER_EXEEXT],
+m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
+
+
+# When config.status generates a header, we must update the stamp-h file.
+# This file resides in the same directory as the config header
+# that is generated.  The stamp files are numbered to have different names.
+
+# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
+# loop where config.status creates the headers, so we can generate
+# our stamp files there.
+AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
+[# Compute $1's index in $config_headers.
+_am_arg=$1
+_am_stamp_count=1
+for _am_header in $config_headers :; do
+  case $_am_header in
+    $_am_arg | $_am_arg:* )
+      break ;;
+    * )
+      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
+  esac
+done
+echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
+
+# Copyright (C) 2001-2013 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_PROG_INSTALL_SH
+# ------------------
+# Define $install_sh.
+AC_DEFUN([AM_PROG_INSTALL_SH],
+[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
+if test x"${install_sh}" != xset; then
+  case $am_aux_dir in
+  *\ * | *\	*)
+    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
+  *)
+    install_sh="\${SHELL} $am_aux_dir/install-sh"
+  esac
+fi
+AC_SUBST([install_sh])])
+
+# Copyright (C) 2003-2013 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# Check whether the underlying file-system supports filenames
+# with a leading dot.  For instance MS-DOS doesn't.
+AC_DEFUN([AM_SET_LEADING_DOT],
+[rm -rf .tst 2>/dev/null
+mkdir .tst 2>/dev/null
+if test -d .tst; then
+  am__leading_dot=.
+else
+  am__leading_dot=_
+fi
+rmdir .tst 2>/dev/null
+AC_SUBST([am__leading_dot])])
+
+# Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
+# From Jim Meyering
+
+# Copyright (C) 1996-2013 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_MAINTAINER_MODE([DEFAULT-MODE])
+# ----------------------------------
+# Control maintainer-specific portions of Makefiles.
+# Default is to disable them, unless 'enable' is passed literally.
+# For symmetry, 'disable' may be passed as well.  Anyway, the user
+# can override the default with the --enable/--disable switch.
+AC_DEFUN([AM_MAINTAINER_MODE],
+[m4_case(m4_default([$1], [disable]),
+       [enable], [m4_define([am_maintainer_other], [disable])],
+       [disable], [m4_define([am_maintainer_other], [enable])],
+       [m4_define([am_maintainer_other], [enable])
+        m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
+AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
+  dnl maintainer-mode's default is 'disable' unless 'enable' is passed
+  AC_ARG_ENABLE([maintainer-mode],
+    [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
+      am_maintainer_other[ make rules and dependencies not useful
+      (and sometimes confusing) to the casual installer])],
+    [USE_MAINTAINER_MODE=$enableval],
+    [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
+  AC_MSG_RESULT([$USE_MAINTAINER_MODE])
+  AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
+  MAINT=$MAINTAINER_MODE_TRUE
+  AC_SUBST([MAINT])dnl
+]
+)
+
+# Check to see how 'make' treats includes.	            -*- Autoconf -*-
+
+# Copyright (C) 2001-2013 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_MAKE_INCLUDE()
+# -----------------
+# Check to see how make treats includes.
+AC_DEFUN([AM_MAKE_INCLUDE],
+[am_make=${MAKE-make}
+cat > confinc << 'END'
+am__doit:
+	@echo this is the am__doit target
+.PHONY: am__doit
+END
+# If we don't find an include directive, just comment out the code.
+AC_MSG_CHECKING([for style of include used by $am_make])
+am__include="#"
+am__quote=
+_am_result=none
+# First try GNU make style include.
+echo "include confinc" > confmf
+# Ignore all kinds of additional output from 'make'.
+case `$am_make -s -f confmf 2> /dev/null` in #(
+*the\ am__doit\ target*)
+  am__include=include
+  am__quote=
+  _am_result=GNU
+  ;;
+esac
+# Now try BSD make style include.
+if test "$am__include" = "#"; then
+   echo '.include "confinc"' > confmf
+   case `$am_make -s -f confmf 2> /dev/null` in #(
+   *the\ am__doit\ target*)
+     am__include=.include
+     am__quote="\""
+     _am_result=BSD
+     ;;
+   esac
+fi
+AC_SUBST([am__include])
+AC_SUBST([am__quote])
+AC_MSG_RESULT([$_am_result])
+rm -f confinc confmf
+])
+
+# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
+
+# Copyright (C) 1997-2013 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_MISSING_PROG(NAME, PROGRAM)
+# ------------------------------
+AC_DEFUN([AM_MISSING_PROG],
+[AC_REQUIRE([AM_MISSING_HAS_RUN])
+$1=${$1-"${am_missing_run}$2"}
+AC_SUBST($1)])
+
+# AM_MISSING_HAS_RUN
+# ------------------
+# Define MISSING if not defined so far and test if it is modern enough.
+# If it is, set am_missing_run to use it, otherwise, to nothing.
+AC_DEFUN([AM_MISSING_HAS_RUN],
+[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
+AC_REQUIRE_AUX_FILE([missing])dnl
+if test x"${MISSING+set}" != xset; then
+  case $am_aux_dir in
+  *\ * | *\	*)
+    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
+  *)
+    MISSING="\${SHELL} $am_aux_dir/missing" ;;
+  esac
+fi
+# Use eval to expand $SHELL
+if eval "$MISSING --is-lightweight"; then
+  am_missing_run="$MISSING "
+else
+  am_missing_run=
+  AC_MSG_WARN(['missing' script is too old or missing])
+fi
+])
+
+# Helper functions for option handling.                     -*- Autoconf -*-
+
+# Copyright (C) 2001-2013 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# _AM_MANGLE_OPTION(NAME)
+# -----------------------
+AC_DEFUN([_AM_MANGLE_OPTION],
+[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
+
+# _AM_SET_OPTION(NAME)
+# --------------------
+# Set option NAME.  Presently that only means defining a flag for this option.
+AC_DEFUN([_AM_SET_OPTION],
+[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
+
+# _AM_SET_OPTIONS(OPTIONS)
+# ------------------------
+# OPTIONS is a space-separated list of Automake options.
+AC_DEFUN([_AM_SET_OPTIONS],
+[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
+
+# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
+# -------------------------------------------
+# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
+AC_DEFUN([_AM_IF_OPTION],
+[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
+
+# Check to make sure that the build environment is sane.    -*- Autoconf -*-
+
+# Copyright (C) 1996-2013 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_SANITY_CHECK
+# ---------------
+AC_DEFUN([AM_SANITY_CHECK],
+[AC_MSG_CHECKING([whether build environment is sane])
+# Reject unsafe characters in $srcdir or the absolute working directory
+# name.  Accept space and tab only in the latter.
+am_lf='
+'
+case `pwd` in
+  *[[\\\"\#\$\&\'\`$am_lf]]*)
+    AC_MSG_ERROR([unsafe absolute working directory name]);;
+esac
+case $srcdir in
+  *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
+    AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
+esac
+
+# Do 'set' in a subshell so we don't clobber the current shell's
+# arguments.  Must try -L first in case configure is actually a
+# symlink; some systems play weird games with the mod time of symlinks
+# (eg FreeBSD returns the mod time of the symlink's containing
+# directory).
+if (
+   am_has_slept=no
+   for am_try in 1 2; do
+     echo "timestamp, slept: $am_has_slept" > conftest.file
+     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
+     if test "$[*]" = "X"; then
+	# -L didn't work.
+	set X `ls -t "$srcdir/configure" conftest.file`
+     fi
+     if test "$[*]" != "X $srcdir/configure conftest.file" \
+	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
+
+	# If neither matched, then we have a broken ls.  This can happen
+	# if, for instance, CONFIG_SHELL is bash and it inherits a
+	# broken ls alias from the environment.  This has actually
+	# happened.  Such a system could not be considered "sane".
+	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
+  alias in your environment])
+     fi
+     if test "$[2]" = conftest.file || test $am_try -eq 2; then
+       break
+     fi
+     # Just in case.
+     sleep 1
+     am_has_slept=yes
+   done
+   test "$[2]" = conftest.file
+   )
+then
+   # Ok.
+   :
+else
+   AC_MSG_ERROR([newly created file is older than distributed files!
+Check your system clock])
+fi
+AC_MSG_RESULT([yes])
+# If we didn't sleep, we still need to ensure time stamps of config.status and
+# generated files are strictly newer.
+am_sleep_pid=
+if grep 'slept: no' conftest.file >/dev/null 2>&1; then
+  ( sleep 1 ) &
+  am_sleep_pid=$!
+fi
+AC_CONFIG_COMMANDS_PRE(
+  [AC_MSG_CHECKING([that generated files are newer than configure])
+   if test -n "$am_sleep_pid"; then
+     # Hide warnings about reused PIDs.
+     wait $am_sleep_pid 2>/dev/null
+   fi
+   AC_MSG_RESULT([done])])
+rm -f conftest.file
+])
+
+# Copyright (C) 2009-2013 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_SILENT_RULES([DEFAULT])
+# --------------------------
+# Enable less verbose build rules; with the default set to DEFAULT
+# ("yes" being less verbose, "no" or empty being verbose).
+AC_DEFUN([AM_SILENT_RULES],
+[AC_ARG_ENABLE([silent-rules], [dnl
+AS_HELP_STRING(
+  [--enable-silent-rules],
+  [less verbose build output (undo: "make V=1")])
+AS_HELP_STRING(
+  [--disable-silent-rules],
+  [verbose build output (undo: "make V=0")])dnl
+])
+case $enable_silent_rules in @%:@ (((
+  yes) AM_DEFAULT_VERBOSITY=0;;
+   no) AM_DEFAULT_VERBOSITY=1;;
+    *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
+esac
+dnl
+dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
+dnl do not support nested variable expansions.
+dnl See automake bug#9928 and bug#10237.
+am_make=${MAKE-make}
+AC_CACHE_CHECK([whether $am_make supports nested variables],
+   [am_cv_make_support_nested_variables],
+   [if AS_ECHO([['TRUE=$(BAR$(V))
+BAR0=false
+BAR1=true
+V=1
+am__doit:
+	@$(TRUE)
+.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
+  am_cv_make_support_nested_variables=yes
+else
+  am_cv_make_support_nested_variables=no
+fi])
+if test $am_cv_make_support_nested_variables = yes; then
+  dnl Using '$V' instead of '$(V)' breaks IRIX make.
+  AM_V='$(V)'
+  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
+else
+  AM_V=$AM_DEFAULT_VERBOSITY
+  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
+fi
+AC_SUBST([AM_V])dnl
+AM_SUBST_NOTMAKE([AM_V])dnl
+AC_SUBST([AM_DEFAULT_V])dnl
+AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
+AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
+AM_BACKSLASH='\'
+AC_SUBST([AM_BACKSLASH])dnl
+_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
+])
+
+# Copyright (C) 2001-2013 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_PROG_INSTALL_STRIP
+# ---------------------
+# One issue with vendor 'install' (even GNU) is that you can't
+# specify the program used to strip binaries.  This is especially
+# annoying in cross-compiling environments, where the build's strip
+# is unlikely to handle the host's binaries.
+# Fortunately install-sh will honor a STRIPPROG variable, so we
+# always use install-sh in "make install-strip", and initialize
+# STRIPPROG with the value of the STRIP variable (set by the user).
+AC_DEFUN([AM_PROG_INSTALL_STRIP],
+[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
+# Installed binaries are usually stripped using 'strip' when the user
+# run "make install-strip".  However 'strip' might not be the right
+# tool to use in cross-compilation environments, therefore Automake
+# will honor the 'STRIP' environment variable to overrule this program.
+dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
+if test "$cross_compiling" != no; then
+  AC_CHECK_TOOL([STRIP], [strip], :)
+fi
+INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
+AC_SUBST([INSTALL_STRIP_PROGRAM])])
+
+# Copyright (C) 2006-2013 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# _AM_SUBST_NOTMAKE(VARIABLE)
+# ---------------------------
+# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
+# This macro is traced by Automake.
+AC_DEFUN([_AM_SUBST_NOTMAKE])
+
+# AM_SUBST_NOTMAKE(VARIABLE)
+# --------------------------
+# Public sister of _AM_SUBST_NOTMAKE.
+AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
+
+# Check how to create a tarball.                            -*- Autoconf -*-
+
+# Copyright (C) 2004-2013 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# _AM_PROG_TAR(FORMAT)
+# --------------------
+# Check how to create a tarball in format FORMAT.
+# FORMAT should be one of 'v7', 'ustar', or 'pax'.
+#
+# Substitute a variable $(am__tar) that is a command
+# writing to stdout a FORMAT-tarball containing the directory
+# $tardir.
+#     tardir=directory && $(am__tar) > result.tar
+#
+# Substitute a variable $(am__untar) that extract such
+# a tarball read from stdin.
+#     $(am__untar) < result.tar
+#
+AC_DEFUN([_AM_PROG_TAR],
+[# Always define AMTAR for backward compatibility.  Yes, it's still used
+# in the wild :-(  We should find a proper way to deprecate it ...
+AC_SUBST([AMTAR], ['$${TAR-tar}'])
+
+# We'll loop over all known methods to create a tar archive until one works.
+_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
+
+m4_if([$1], [v7],
+  [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
+
+  [m4_case([$1],
+    [ustar],
+     [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
+      # There is notably a 21 bits limit for the UID and the GID.  In fact,
+      # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
+      # and bug#13588).
+      am_max_uid=2097151 # 2^21 - 1
+      am_max_gid=$am_max_uid
+      # The $UID and $GID variables are not portable, so we need to resort
+      # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
+      # below are definitely unexpected, so allow the users to see them
+      # (that is, avoid stderr redirection).
+      am_uid=`id -u || echo unknown`
+      am_gid=`id -g || echo unknown`
+      AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
+      if test $am_uid -le $am_max_uid; then
+         AC_MSG_RESULT([yes])
+      else
+         AC_MSG_RESULT([no])
+         _am_tools=none
+      fi
+      AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
+      if test $am_gid -le $am_max_gid; then
+         AC_MSG_RESULT([yes])
+      else
+        AC_MSG_RESULT([no])
+        _am_tools=none
+      fi],
+
+  [pax],
+    [],
+
+  [m4_fatal([Unknown tar format])])
+
+  AC_MSG_CHECKING([how to create a $1 tar archive])
+
+  # Go ahead even if we have the value already cached.  We do so because we
+  # need to set the values for the 'am__tar' and 'am__untar' variables.
+  _am_tools=${am_cv_prog_tar_$1-$_am_tools}
+
+  for _am_tool in $_am_tools; do
+    case $_am_tool in
+    gnutar)
+      for _am_tar in tar gnutar gtar; do
+        AM_RUN_LOG([$_am_tar --version]) && break
+      done
+      am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
+      am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
+      am__untar="$_am_tar -xf -"
+      ;;
+    plaintar)
+      # Must skip GNU tar: if it does not support --format= it doesn't create
+      # ustar tarball either.
+      (tar --version) >/dev/null 2>&1 && continue
+      am__tar='tar chf - "$$tardir"'
+      am__tar_='tar chf - "$tardir"'
+      am__untar='tar xf -'
+      ;;
+    pax)
+      am__tar='pax -L -x $1 -w "$$tardir"'
+      am__tar_='pax -L -x $1 -w "$tardir"'
+      am__untar='pax -r'
+      ;;
+    cpio)
+      am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
+      am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
+      am__untar='cpio -i -H $1 -d'
+      ;;
+    none)
+      am__tar=false
+      am__tar_=false
+      am__untar=false
+      ;;
+    esac
+
+    # If the value was cached, stop now.  We just wanted to have am__tar
+    # and am__untar set.
+    test -n "${am_cv_prog_tar_$1}" && break
+
+    # tar/untar a dummy directory, and stop if the command works.
+    rm -rf conftest.dir
+    mkdir conftest.dir
+    echo GrepMe > conftest.dir/file
+    AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
+    rm -rf conftest.dir
+    if test -s conftest.tar; then
+      AM_RUN_LOG([$am__untar <conftest.tar])
+      AM_RUN_LOG([cat conftest.dir/file])
+      grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
+    fi
+  done
+  rm -rf conftest.dir
+
+  AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
+  AC_MSG_RESULT([$am_cv_prog_tar_$1])])
+
+AC_SUBST([am__tar])
+AC_SUBST([am__untar])
+]) # _AM_PROG_TAR
+
+# pkg.m4 - Macros to locate and utilise pkg-config.            -*- Autoconf -*-
+# serial 1 (pkg-config-0.24)
+# 
+# Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# PKG_PROG_PKG_CONFIG([MIN-VERSION])
+# ----------------------------------
+AC_DEFUN([PKG_PROG_PKG_CONFIG],
+[m4_pattern_forbid([^_?PKG_[A-Z_]+$])
+m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$])
+m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$])
+AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])
+AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path])
+AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path])
+
+if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
+	AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
+fi
+if test -n "$PKG_CONFIG"; then
+	_pkg_min_version=m4_default([$1], [0.9.0])
+	AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
+	if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
+		AC_MSG_RESULT([yes])
+	else
+		AC_MSG_RESULT([no])
+		PKG_CONFIG=""
+	fi
+fi[]dnl
+])# PKG_PROG_PKG_CONFIG
+
+# PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
+#
+# Check to see whether a particular set of modules exists.  Similar
+# to PKG_CHECK_MODULES(), but does not set variables or print errors.
+#
+# Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
+# only at the first occurence in configure.ac, so if the first place
+# it's called might be skipped (such as if it is within an "if", you
+# have to call PKG_CHECK_EXISTS manually
+# --------------------------------------------------------------
+AC_DEFUN([PKG_CHECK_EXISTS],
+[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
+if test -n "$PKG_CONFIG" && \
+    AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
+  m4_default([$2], [:])
+m4_ifvaln([$3], [else
+  $3])dnl
+fi])
+
+# _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
+# ---------------------------------------------
+m4_define([_PKG_CONFIG],
+[if test -n "$$1"; then
+    pkg_cv_[]$1="$$1"
+ elif test -n "$PKG_CONFIG"; then
+    PKG_CHECK_EXISTS([$3],
+                     [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes ],
+		     [pkg_failed=yes])
+ else
+    pkg_failed=untried
+fi[]dnl
+])# _PKG_CONFIG
+
+# _PKG_SHORT_ERRORS_SUPPORTED
+# -----------------------------
+AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
+[AC_REQUIRE([PKG_PROG_PKG_CONFIG])
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi[]dnl
+])# _PKG_SHORT_ERRORS_SUPPORTED
+
+
+# PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
+# [ACTION-IF-NOT-FOUND])
+#
+#
+# Note that if there is a possibility the first call to
+# PKG_CHECK_MODULES might not happen, you should be sure to include an
+# explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
+#
+#
+# --------------------------------------------------------------
+AC_DEFUN([PKG_CHECK_MODULES],
+[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
+AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
+AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
+
+pkg_failed=no
+AC_MSG_CHECKING([for $1])
+
+_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
+_PKG_CONFIG([$1][_LIBS], [libs], [$2])
+
+m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
+and $1[]_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.])
+
+if test $pkg_failed = yes; then
+   	AC_MSG_RESULT([no])
+        _PKG_SHORT_ERRORS_SUPPORTED
+        if test $_pkg_short_errors_supported = yes; then
+	        $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
+        else 
+	        $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
+
+	m4_default([$4], [AC_MSG_ERROR(
+[Package requirements ($2) were not met:
+
+$$1_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+_PKG_TEXT])[]dnl
+        ])
+elif test $pkg_failed = untried; then
+     	AC_MSG_RESULT([no])
+	m4_default([$4], [AC_MSG_FAILURE(
+[The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+_PKG_TEXT
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl
+        ])
+else
+	$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
+	$1[]_LIBS=$pkg_cv_[]$1[]_LIBS
+        AC_MSG_RESULT([yes])
+	$3
+fi[]dnl
+])# PKG_CHECK_MODULES
+
+dnl xorg-macros.m4.  Generated from xorg-macros.m4.in xorgversion.m4 by configure.
+dnl
+dnl Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved.
+dnl 
+dnl Permission is hereby granted, free of charge, to any person obtaining a
+dnl copy of this software and associated documentation files (the "Software"),
+dnl to deal in the Software without restriction, including without limitation
+dnl the rights to use, copy, modify, merge, publish, distribute, sublicense,
+dnl and/or sell copies of the Software, and to permit persons to whom the
+dnl Software is furnished to do so, subject to the following conditions:
+dnl
+dnl The above copyright notice and this permission notice (including the next
+dnl paragraph) shall be included in all copies or substantial portions of the
+dnl Software.
+dnl
+dnl THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+dnl IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+dnl FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+dnl THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+dnl LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+dnl FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+dnl DEALINGS IN THE SOFTWARE.
+
+# XORG_MACROS_VERSION(required-version)
+# -------------------------------------
+# Minimum version: 1.1.0
+#
+# If you're using a macro added in Version 1.1 or newer, include this in
+# your configure.ac with the minimum required version, such as:
+# XORG_MACROS_VERSION(1.1)
+#
+# To ensure that this macro is defined, also add:
+# m4_ifndef([XORG_MACROS_VERSION],
+#     [m4_fatal([must install xorg-macros 1.1 or later before running autoconf/autogen])])
+#
+#
+# See the "minimum version" comment for each macro you use to see what 
+# version you require.
+m4_defun([XORG_MACROS_VERSION],[
+m4_define([vers_have], [1.17])
+m4_define([maj_have], m4_substr(vers_have, 0, m4_index(vers_have, [.])))
+m4_define([maj_needed], m4_substr([$1], 0, m4_index([$1], [.])))
+m4_if(m4_cmp(maj_have, maj_needed), 0,,
+    [m4_fatal([xorg-macros major version ]maj_needed[ is required but ]vers_have[ found])])
+m4_if(m4_version_compare(vers_have, [$1]), -1,
+    [m4_fatal([xorg-macros version $1 or higher is required but ]vers_have[ found])])
+m4_undefine([vers_have])
+m4_undefine([maj_have])
+m4_undefine([maj_needed])
+]) # XORG_MACROS_VERSION
+
+# XORG_PROG_RAWCPP()
+# ------------------
+# Minimum version: 1.0.0
+#
+# Find cpp program and necessary flags for use in pre-processing text files
+# such as man pages and config files
+AC_DEFUN([XORG_PROG_RAWCPP],[
+AC_REQUIRE([AC_PROG_CPP])
+AC_PATH_PROGS(RAWCPP, [cpp], [${CPP}], 
+   [$PATH:/bin:/usr/bin:/usr/lib:/usr/libexec:/usr/ccs/lib:/usr/ccs/lbin:/lib])
+
+# Check for flag to avoid builtin definitions - assumes unix is predefined,
+# which is not the best choice for supporting other OS'es, but covers most
+# of the ones we need for now.
+AC_MSG_CHECKING([if $RAWCPP requires -undef])
+AC_LANG_CONFTEST([AC_LANG_SOURCE([[Does cpp redefine unix ?]])])
+if test `${RAWCPP} < conftest.$ac_ext | grep -c 'unix'` -eq 1 ; then
+	AC_MSG_RESULT([no])
+else
+	if test `${RAWCPP} -undef < conftest.$ac_ext | grep -c 'unix'` -eq 1 ; then
+		RAWCPPFLAGS=-undef
+		AC_MSG_RESULT([yes])
+	# under Cygwin unix is still defined even with -undef
+	elif test `${RAWCPP} -undef -ansi < conftest.$ac_ext | grep -c 'unix'` -eq 1 ; then
+		RAWCPPFLAGS="-undef -ansi"
+		AC_MSG_RESULT([yes, with -ansi])
+	else
+		AC_MSG_ERROR([${RAWCPP} defines unix with or without -undef.  I don't know what to do.])
+	fi
+fi
+rm -f conftest.$ac_ext
+
+AC_MSG_CHECKING([if $RAWCPP requires -traditional])
+AC_LANG_CONFTEST([AC_LANG_SOURCE([[Does cpp preserve   "whitespace"?]])])
+if test `${RAWCPP} < conftest.$ac_ext | grep -c 'preserve   \"'` -eq 1 ; then
+	AC_MSG_RESULT([no])
+else
+	if test `${RAWCPP} -traditional < conftest.$ac_ext | grep -c 'preserve   \"'` -eq 1 ; then
+		RAWCPPFLAGS="${RAWCPPFLAGS} -traditional"
+		AC_MSG_RESULT([yes])
+	else
+		AC_MSG_ERROR([${RAWCPP} does not preserve whitespace with or without -traditional.  I don't know what to do.])
+	fi
+fi
+rm -f conftest.$ac_ext
+AC_SUBST(RAWCPPFLAGS)
+]) # XORG_PROG_RAWCPP
+
+# XORG_MANPAGE_SECTIONS()
+# -----------------------
+# Minimum version: 1.0.0
+#
+# Determine which sections man pages go in for the different man page types
+# on this OS - replaces *ManSuffix settings in old Imake *.cf per-os files.
+# Not sure if there's any better way than just hardcoding by OS name.
+# Override default settings by setting environment variables
+# Added MAN_SUBSTS in version 1.8
+# Added AC_PROG_SED in version 1.8
+
+AC_DEFUN([XORG_MANPAGE_SECTIONS],[
+AC_REQUIRE([AC_CANONICAL_HOST])
+AC_REQUIRE([AC_PROG_SED])
+
+if test x$APP_MAN_SUFFIX = x    ; then
+    APP_MAN_SUFFIX=1
+fi
+if test x$APP_MAN_DIR = x    ; then
+    APP_MAN_DIR='$(mandir)/man$(APP_MAN_SUFFIX)'
+fi
+
+if test x$LIB_MAN_SUFFIX = x    ; then
+    LIB_MAN_SUFFIX=3
+fi
+if test x$LIB_MAN_DIR = x    ; then
+    LIB_MAN_DIR='$(mandir)/man$(LIB_MAN_SUFFIX)'
+fi
+
+if test x$FILE_MAN_SUFFIX = x    ; then
+    case $host_os in
+	solaris*)	FILE_MAN_SUFFIX=4  ;;
+	*)		FILE_MAN_SUFFIX=5  ;;
+    esac
+fi
+if test x$FILE_MAN_DIR = x    ; then
+    FILE_MAN_DIR='$(mandir)/man$(FILE_MAN_SUFFIX)'
+fi
+
+if test x$MISC_MAN_SUFFIX = x    ; then
+    case $host_os in
+	solaris*)	MISC_MAN_SUFFIX=5  ;;
+	*)		MISC_MAN_SUFFIX=7  ;;
+    esac
+fi
+if test x$MISC_MAN_DIR = x    ; then
+    MISC_MAN_DIR='$(mandir)/man$(MISC_MAN_SUFFIX)'
+fi
+
+if test x$DRIVER_MAN_SUFFIX = x    ; then
+    case $host_os in
+	solaris*)	DRIVER_MAN_SUFFIX=7  ;;
+	*)		DRIVER_MAN_SUFFIX=4  ;;
+    esac
+fi
+if test x$DRIVER_MAN_DIR = x    ; then
+    DRIVER_MAN_DIR='$(mandir)/man$(DRIVER_MAN_SUFFIX)'
+fi
+
+if test x$ADMIN_MAN_SUFFIX = x    ; then
+    case $host_os in
+	solaris*)	ADMIN_MAN_SUFFIX=1m ;;
+	*)		ADMIN_MAN_SUFFIX=8  ;;
+    esac
+fi
+if test x$ADMIN_MAN_DIR = x    ; then
+    ADMIN_MAN_DIR='$(mandir)/man$(ADMIN_MAN_SUFFIX)'
+fi
+
+
+AC_SUBST([APP_MAN_SUFFIX])
+AC_SUBST([LIB_MAN_SUFFIX])
+AC_SUBST([FILE_MAN_SUFFIX])
+AC_SUBST([MISC_MAN_SUFFIX])
+AC_SUBST([DRIVER_MAN_SUFFIX])
+AC_SUBST([ADMIN_MAN_SUFFIX])
+AC_SUBST([APP_MAN_DIR])
+AC_SUBST([LIB_MAN_DIR])
+AC_SUBST([FILE_MAN_DIR])
+AC_SUBST([MISC_MAN_DIR])
+AC_SUBST([DRIVER_MAN_DIR])
+AC_SUBST([ADMIN_MAN_DIR])
+
+XORG_MAN_PAGE="X Version 11"
+AC_SUBST([XORG_MAN_PAGE])
+MAN_SUBSTS="\
+	-e 's|__vendorversion__|\"\$(PACKAGE_STRING)\" \"\$(XORG_MAN_PAGE)\"|' \
+	-e 's|__xorgversion__|\"\$(PACKAGE_STRING)\" \"\$(XORG_MAN_PAGE)\"|' \
+	-e 's|__xservername__|Xorg|g' \
+	-e 's|__xconfigfile__|xorg.conf|g' \
+	-e 's|__projectroot__|\$(prefix)|g' \
+	-e 's|__apploaddir__|\$(appdefaultdir)|g' \
+	-e 's|__appmansuffix__|\$(APP_MAN_SUFFIX)|g' \
+	-e 's|__drivermansuffix__|\$(DRIVER_MAN_SUFFIX)|g' \
+	-e 's|__adminmansuffix__|\$(ADMIN_MAN_SUFFIX)|g' \
+	-e 's|__libmansuffix__|\$(LIB_MAN_SUFFIX)|g' \
+	-e 's|__miscmansuffix__|\$(MISC_MAN_SUFFIX)|g' \
+	-e 's|__filemansuffix__|\$(FILE_MAN_SUFFIX)|g'"
+AC_SUBST([MAN_SUBSTS])
+
+]) # XORG_MANPAGE_SECTIONS
+
+# XORG_CHECK_SGML_DOCTOOLS([MIN-VERSION])
+# ------------------------
+# Minimum version: 1.7.0
+#
+# Defines the variable XORG_SGML_PATH containing the location of X11/defs.ent
+# provided by xorg-sgml-doctools, if installed.
+AC_DEFUN([XORG_CHECK_SGML_DOCTOOLS],[
+AC_MSG_CHECKING([for X.Org SGML entities m4_ifval([$1],[>= $1])])
+XORG_SGML_PATH=
+PKG_CHECK_EXISTS([xorg-sgml-doctools m4_ifval([$1],[>= $1])],
+    [XORG_SGML_PATH=`$PKG_CONFIG --variable=sgmlrootdir xorg-sgml-doctools`],
+    [m4_ifval([$1],[:],
+        [if test x"$cross_compiling" != x"yes" ; then
+            AC_CHECK_FILE([$prefix/share/sgml/X11/defs.ent],
+                          [XORG_SGML_PATH=$prefix/share/sgml])
+         fi])
+    ])
+
+# Define variables STYLESHEET_SRCDIR and XSL_STYLESHEET containing
+# the path and the name of the doc stylesheet
+if test "x$XORG_SGML_PATH" != "x" ; then
+   AC_MSG_RESULT([$XORG_SGML_PATH])
+   STYLESHEET_SRCDIR=$XORG_SGML_PATH/X11
+   XSL_STYLESHEET=$STYLESHEET_SRCDIR/xorg.xsl
+else
+   AC_MSG_RESULT([no])
+fi
+
+AC_SUBST(XORG_SGML_PATH)
+AC_SUBST(STYLESHEET_SRCDIR)
+AC_SUBST(XSL_STYLESHEET)
+AM_CONDITIONAL([HAVE_STYLESHEETS], [test "x$XSL_STYLESHEET" != "x"])
+]) # XORG_CHECK_SGML_DOCTOOLS
+
+# XORG_CHECK_LINUXDOC
+# -------------------
+# Minimum version: 1.0.0
+#
+# Defines the variable MAKE_TEXT if the necessary tools and
+# files are found. $(MAKE_TEXT) blah.sgml will then produce blah.txt.
+# Whether or not the necessary tools and files are found can be checked
+# with the AM_CONDITIONAL "BUILD_LINUXDOC"
+AC_DEFUN([XORG_CHECK_LINUXDOC],[
+AC_REQUIRE([XORG_CHECK_SGML_DOCTOOLS])
+AC_REQUIRE([XORG_WITH_PS2PDF])
+
+AC_PATH_PROG(LINUXDOC, linuxdoc)
+
+AC_MSG_CHECKING([whether to build documentation])
+
+if test x$XORG_SGML_PATH != x && test x$LINUXDOC != x ; then
+   BUILDDOC=yes
+else
+   BUILDDOC=no
+fi
+
+AM_CONDITIONAL(BUILD_LINUXDOC, [test x$BUILDDOC = xyes])
+
+AC_MSG_RESULT([$BUILDDOC])
+
+AC_MSG_CHECKING([whether to build pdf documentation])
+
+if test x$have_ps2pdf != xno && test x$BUILD_PDFDOC != xno; then
+   BUILDPDFDOC=yes
+else
+   BUILDPDFDOC=no
+fi
+
+AM_CONDITIONAL(BUILD_PDFDOC, [test x$BUILDPDFDOC = xyes])
+
+AC_MSG_RESULT([$BUILDPDFDOC])
+
+MAKE_TEXT="SGML_SEARCH_PATH=$XORG_SGML_PATH GROFF_NO_SGR=y $LINUXDOC -B txt -f"
+MAKE_PS="SGML_SEARCH_PATH=$XORG_SGML_PATH $LINUXDOC -B latex --papersize=letter --output=ps"
+MAKE_PDF="$PS2PDF"
+MAKE_HTML="SGML_SEARCH_PATH=$XORG_SGML_PATH $LINUXDOC  -B html --split=0"
+
+AC_SUBST(MAKE_TEXT)
+AC_SUBST(MAKE_PS)
+AC_SUBST(MAKE_PDF)
+AC_SUBST(MAKE_HTML)
+]) # XORG_CHECK_LINUXDOC
+
+# XORG_CHECK_DOCBOOK
+# -------------------
+# Minimum version: 1.0.0
+#
+# Checks for the ability to build output formats from SGML DocBook source.
+# For XXX in {TXT, PDF, PS, HTML}, the AM_CONDITIONAL "BUILD_XXXDOC"
+# indicates whether the necessary tools and files are found and, if set,
+# $(MAKE_XXX) blah.sgml will produce blah.xxx.
+AC_DEFUN([XORG_CHECK_DOCBOOK],[
+AC_REQUIRE([XORG_CHECK_SGML_DOCTOOLS])
+
+BUILDTXTDOC=no
+BUILDPDFDOC=no
+BUILDPSDOC=no
+BUILDHTMLDOC=no
+
+AC_PATH_PROG(DOCBOOKPS, docbook2ps)
+AC_PATH_PROG(DOCBOOKPDF, docbook2pdf)
+AC_PATH_PROG(DOCBOOKHTML, docbook2html)
+AC_PATH_PROG(DOCBOOKTXT, docbook2txt)
+
+AC_MSG_CHECKING([whether to build text documentation])
+if test x$XORG_SGML_PATH != x && test x$DOCBOOKTXT != x &&
+   test x$BUILD_TXTDOC != xno; then
+	BUILDTXTDOC=yes
+fi
+AM_CONDITIONAL(BUILD_TXTDOC, [test x$BUILDTXTDOC = xyes])
+AC_MSG_RESULT([$BUILDTXTDOC])
+
+AC_MSG_CHECKING([whether to build PDF documentation])
+if test x$XORG_SGML_PATH != x && test x$DOCBOOKPDF != x &&
+   test x$BUILD_PDFDOC != xno; then
+	BUILDPDFDOC=yes
+fi
+AM_CONDITIONAL(BUILD_PDFDOC, [test x$BUILDPDFDOC = xyes])
+AC_MSG_RESULT([$BUILDPDFDOC])
+
+AC_MSG_CHECKING([whether to build PostScript documentation])
+if test x$XORG_SGML_PATH != x && test x$DOCBOOKPS != x &&
+   test x$BUILD_PSDOC != xno; then
+	BUILDPSDOC=yes
+fi
+AM_CONDITIONAL(BUILD_PSDOC, [test x$BUILDPSDOC = xyes])
+AC_MSG_RESULT([$BUILDPSDOC])
+
+AC_MSG_CHECKING([whether to build HTML documentation])
+if test x$XORG_SGML_PATH != x && test x$DOCBOOKHTML != x &&
+   test x$BUILD_HTMLDOC != xno; then
+	BUILDHTMLDOC=yes
+fi
+AM_CONDITIONAL(BUILD_HTMLDOC, [test x$BUILDHTMLDOC = xyes])
+AC_MSG_RESULT([$BUILDHTMLDOC])
+
+MAKE_TEXT="SGML_SEARCH_PATH=$XORG_SGML_PATH $DOCBOOKTXT"
+MAKE_PS="SGML_SEARCH_PATH=$XORG_SGML_PATH $DOCBOOKPS"
+MAKE_PDF="SGML_SEARCH_PATH=$XORG_SGML_PATH $DOCBOOKPDF"
+MAKE_HTML="SGML_SEARCH_PATH=$XORG_SGML_PATH $DOCBOOKHTML"
+
+AC_SUBST(MAKE_TEXT)
+AC_SUBST(MAKE_PS)
+AC_SUBST(MAKE_PDF)
+AC_SUBST(MAKE_HTML)
+]) # XORG_CHECK_DOCBOOK
+
+# XORG_WITH_XMLTO([MIN-VERSION], [DEFAULT])
+# ----------------
+# Minimum version: 1.5.0
+# Minimum version for optional DEFAULT argument: 1.11.0
+#
+# Documentation tools are not always available on all platforms and sometimes
+# not at the appropriate level. This macro enables a module to test for the
+# presence of the tool and obtain it's path in separate variables. Coupled with
+# the --with-xmlto option, it allows maximum flexibilty in making decisions
+# as whether or not to use the xmlto package. When DEFAULT is not specified,
+# --with-xmlto assumes 'auto'.
+#
+# Interface to module:
+# HAVE_XMLTO: 	used in makefiles to conditionally generate documentation
+# XMLTO:	returns the path of the xmlto program found
+#		returns the path set by the user in the environment
+# --with-xmlto:	'yes' user instructs the module to use xmlto
+#		'no' user instructs the module not to use xmlto
+#
+# Added in version 1.10.0
+# HAVE_XMLTO_TEXT: used in makefiles to conditionally generate text documentation
+#                  xmlto for text output requires either lynx, links, or w3m browsers
+#
+# If the user sets the value of XMLTO, AC_PATH_PROG skips testing the path.
+#
+AC_DEFUN([XORG_WITH_XMLTO],[
+AC_ARG_VAR([XMLTO], [Path to xmlto command])
+m4_define([_defopt], m4_default([$2], [auto]))
+AC_ARG_WITH(xmlto,
+	AS_HELP_STRING([--with-xmlto],
+	   [Use xmlto to regenerate documentation (default: ]_defopt[)]),
+	   [use_xmlto=$withval], [use_xmlto=]_defopt)
+m4_undefine([_defopt])
+
+if test "x$use_xmlto" = x"auto"; then
+   AC_PATH_PROG([XMLTO], [xmlto])
+   if test "x$XMLTO" = "x"; then
+        AC_MSG_WARN([xmlto not found - documentation targets will be skipped])
+	have_xmlto=no
+   else
+        have_xmlto=yes
+   fi
+elif test "x$use_xmlto" = x"yes" ; then
+   AC_PATH_PROG([XMLTO], [xmlto])
+   if test "x$XMLTO" = "x"; then
+        AC_MSG_ERROR([--with-xmlto=yes specified but xmlto not found in PATH])
+   fi
+   have_xmlto=yes
+elif test "x$use_xmlto" = x"no" ; then
+   if test "x$XMLTO" != "x"; then
+      AC_MSG_WARN([ignoring XMLTO environment variable since --with-xmlto=no was specified])
+   fi
+   have_xmlto=no
+else
+   AC_MSG_ERROR([--with-xmlto expects 'yes' or 'no'])
+fi
+
+# Test for a minimum version of xmlto, if provided.
+m4_ifval([$1],
+[if test "$have_xmlto" = yes; then
+    # scrape the xmlto version
+    AC_MSG_CHECKING([the xmlto version])
+    xmlto_version=`$XMLTO --version 2>/dev/null | cut -d' ' -f3`
+    AC_MSG_RESULT([$xmlto_version])
+    AS_VERSION_COMPARE([$xmlto_version], [$1],
+        [if test "x$use_xmlto" = xauto; then
+            AC_MSG_WARN([xmlto version $xmlto_version found, but $1 needed])
+            have_xmlto=no
+        else
+            AC_MSG_ERROR([xmlto version $xmlto_version found, but $1 needed])
+        fi])
+fi])
+
+# Test for the ability of xmlto to generate a text target
+have_xmlto_text=no
+cat > conftest.xml << "EOF"
+EOF
+AS_IF([test "$have_xmlto" = yes],
+      [AS_IF([$XMLTO --skip-validation txt conftest.xml >/dev/null 2>&1],
+             [have_xmlto_text=yes],
+             [AC_MSG_WARN([xmlto cannot generate text format, this format skipped])])])
+rm -f conftest.xml
+AM_CONDITIONAL([HAVE_XMLTO_TEXT], [test $have_xmlto_text = yes])
+AM_CONDITIONAL([HAVE_XMLTO], [test "$have_xmlto" = yes])
+]) # XORG_WITH_XMLTO
+
+# XORG_WITH_XSLTPROC([MIN-VERSION], [DEFAULT])
+# --------------------------------------------
+# Minimum version: 1.12.0
+# Minimum version for optional DEFAULT argument: 1.12.0
+#
+# XSLT (Extensible Stylesheet Language Transformations) is a declarative,
+# XML-based language used for the transformation of XML documents.
+# The xsltproc command line tool is for applying XSLT stylesheets to XML documents.
+# It is used under the cover by xmlto to generate html files from DocBook/XML.
+# The XSLT processor is often used as a standalone tool for transformations.
+# It should not be assumed that this tool is used only to work with documnetation.
+# When DEFAULT is not specified, --with-xsltproc assumes 'auto'.
+#
+# Interface to module:
+# HAVE_XSLTPROC: used in makefiles to conditionally generate documentation
+# XSLTPROC:	 returns the path of the xsltproc program found
+#		 returns the path set by the user in the environment
+# --with-xsltproc: 'yes' user instructs the module to use xsltproc
+#		  'no' user instructs the module not to use xsltproc
+# have_xsltproc: returns yes if xsltproc found in PATH or no
+#
+# If the user sets the value of XSLTPROC, AC_PATH_PROG skips testing the path.
+#
+AC_DEFUN([XORG_WITH_XSLTPROC],[
+AC_ARG_VAR([XSLTPROC], [Path to xsltproc command])
+# Preserves the interface, should it be implemented later
+m4_ifval([$1], [m4_warn([syntax], [Checking for xsltproc MIN-VERSION is not implemented])])
+m4_define([_defopt], m4_default([$2], [auto]))
+AC_ARG_WITH(xsltproc,
+	AS_HELP_STRING([--with-xsltproc],
+	   [Use xsltproc for the transformation of XML documents (default: ]_defopt[)]),
+	   [use_xsltproc=$withval], [use_xsltproc=]_defopt)
+m4_undefine([_defopt])
+
+if test "x$use_xsltproc" = x"auto"; then
+   AC_PATH_PROG([XSLTPROC], [xsltproc])
+   if test "x$XSLTPROC" = "x"; then
+        AC_MSG_WARN([xsltproc not found - cannot transform XML documents])
+	have_xsltproc=no
+   else
+        have_xsltproc=yes
+   fi
+elif test "x$use_xsltproc" = x"yes" ; then
+   AC_PATH_PROG([XSLTPROC], [xsltproc])
+   if test "x$XSLTPROC" = "x"; then
+        AC_MSG_ERROR([--with-xsltproc=yes specified but xsltproc not found in PATH])
+   fi
+   have_xsltproc=yes
+elif test "x$use_xsltproc" = x"no" ; then
+   if test "x$XSLTPROC" != "x"; then
+      AC_MSG_WARN([ignoring XSLTPROC environment variable since --with-xsltproc=no was specified])
+   fi
+   have_xsltproc=no
+else
+   AC_MSG_ERROR([--with-xsltproc expects 'yes' or 'no'])
+fi
+
+AM_CONDITIONAL([HAVE_XSLTPROC], [test "$have_xsltproc" = yes])
+]) # XORG_WITH_XSLTPROC
+
+# XORG_WITH_PERL([MIN-VERSION], [DEFAULT])
+# ----------------------------------------
+# Minimum version: 1.15.0
+#
+# PERL (Practical Extraction and Report Language) is a language optimized for
+# scanning arbitrary text files, extracting information from those text files,
+# and printing reports based on that information.
+#
+# When DEFAULT is not specified, --with-perl assumes 'auto'.
+#
+# Interface to module:
+# HAVE_PERL: used in makefiles to conditionally scan text files
+# PERL:	     returns the path of the perl program found
+#	     returns the path set by the user in the environment
+# --with-perl: 'yes' user instructs the module to use perl
+#	       'no' user instructs the module not to use perl
+# have_perl: returns yes if perl found in PATH or no
+#
+# If the user sets the value of PERL, AC_PATH_PROG skips testing the path.
+#
+AC_DEFUN([XORG_WITH_PERL],[
+AC_ARG_VAR([PERL], [Path to perl command])
+# Preserves the interface, should it be implemented later
+m4_ifval([$1], [m4_warn([syntax], [Checking for perl MIN-VERSION is not implemented])])
+m4_define([_defopt], m4_default([$2], [auto]))
+AC_ARG_WITH(perl,
+	AS_HELP_STRING([--with-perl],
+	   [Use perl for extracting information from files (default: ]_defopt[)]),
+	   [use_perl=$withval], [use_perl=]_defopt)
+m4_undefine([_defopt])
+
+if test "x$use_perl" = x"auto"; then
+   AC_PATH_PROG([PERL], [perl])
+   if test "x$PERL" = "x"; then
+        AC_MSG_WARN([perl not found - cannot extract information and report])
+	have_perl=no
+   else
+        have_perl=yes
+   fi
+elif test "x$use_perl" = x"yes" ; then
+   AC_PATH_PROG([PERL], [perl])
+   if test "x$PERL" = "x"; then
+        AC_MSG_ERROR([--with-perl=yes specified but perl not found in PATH])
+   fi
+   have_perl=yes
+elif test "x$use_perl" = x"no" ; then
+   if test "x$PERL" != "x"; then
+      AC_MSG_WARN([ignoring PERL environment variable since --with-perl=no was specified])
+   fi
+   have_perl=no
+else
+   AC_MSG_ERROR([--with-perl expects 'yes' or 'no'])
+fi
+
+AM_CONDITIONAL([HAVE_PERL], [test "$have_perl" = yes])
+]) # XORG_WITH_PERL
+
+# XORG_WITH_ASCIIDOC([MIN-VERSION], [DEFAULT])
+# ----------------
+# Minimum version: 1.5.0
+# Minimum version for optional DEFAULT argument: 1.11.0
+#
+# Documentation tools are not always available on all platforms and sometimes
+# not at the appropriate level. This macro enables a module to test for the
+# presence of the tool and obtain it's path in separate variables. Coupled with
+# the --with-asciidoc option, it allows maximum flexibilty in making decisions
+# as whether or not to use the asciidoc package. When DEFAULT is not specified,
+# --with-asciidoc assumes 'auto'.
+#
+# Interface to module:
+# HAVE_ASCIIDOC: used in makefiles to conditionally generate documentation
+# ASCIIDOC:	 returns the path of the asciidoc program found
+#		 returns the path set by the user in the environment
+# --with-asciidoc: 'yes' user instructs the module to use asciidoc
+#		  'no' user instructs the module not to use asciidoc
+#
+# If the user sets the value of ASCIIDOC, AC_PATH_PROG skips testing the path.
+#
+AC_DEFUN([XORG_WITH_ASCIIDOC],[
+AC_ARG_VAR([ASCIIDOC], [Path to asciidoc command])
+m4_define([_defopt], m4_default([$2], [auto]))
+AC_ARG_WITH(asciidoc,
+	AS_HELP_STRING([--with-asciidoc],
+	   [Use asciidoc to regenerate documentation (default: ]_defopt[)]),
+	   [use_asciidoc=$withval], [use_asciidoc=]_defopt)
+m4_undefine([_defopt])
+
+if test "x$use_asciidoc" = x"auto"; then
+   AC_PATH_PROG([ASCIIDOC], [asciidoc])
+   if test "x$ASCIIDOC" = "x"; then
+        AC_MSG_WARN([asciidoc not found - documentation targets will be skipped])
+	have_asciidoc=no
+   else
+        have_asciidoc=yes
+   fi
+elif test "x$use_asciidoc" = x"yes" ; then
+   AC_PATH_PROG([ASCIIDOC], [asciidoc])
+   if test "x$ASCIIDOC" = "x"; then
+        AC_MSG_ERROR([--with-asciidoc=yes specified but asciidoc not found in PATH])
+   fi
+   have_asciidoc=yes
+elif test "x$use_asciidoc" = x"no" ; then
+   if test "x$ASCIIDOC" != "x"; then
+      AC_MSG_WARN([ignoring ASCIIDOC environment variable since --with-asciidoc=no was specified])
+   fi
+   have_asciidoc=no
+else
+   AC_MSG_ERROR([--with-asciidoc expects 'yes' or 'no'])
+fi
+m4_ifval([$1],
+[if test "$have_asciidoc" = yes; then
+    # scrape the asciidoc version
+    AC_MSG_CHECKING([the asciidoc version])
+    asciidoc_version=`$ASCIIDOC --version 2>/dev/null | cut -d' ' -f2`
+    AC_MSG_RESULT([$asciidoc_version])
+    AS_VERSION_COMPARE([$asciidoc_version], [$1],
+        [if test "x$use_asciidoc" = xauto; then
+            AC_MSG_WARN([asciidoc version $asciidoc_version found, but $1 needed])
+            have_asciidoc=no
+        else
+            AC_MSG_ERROR([asciidoc version $asciidoc_version found, but $1 needed])
+        fi])
+fi])
+AM_CONDITIONAL([HAVE_ASCIIDOC], [test "$have_asciidoc" = yes])
+]) # XORG_WITH_ASCIIDOC
+
+# XORG_WITH_DOXYGEN([MIN-VERSION], [DEFAULT])
+# --------------------------------
+# Minimum version: 1.5.0
+# Minimum version for optional DEFAULT argument: 1.11.0
+#
+# Documentation tools are not always available on all platforms and sometimes
+# not at the appropriate level. This macro enables a module to test for the
+# presence of the tool and obtain it's path in separate variables. Coupled with
+# the --with-doxygen option, it allows maximum flexibilty in making decisions
+# as whether or not to use the doxygen package. When DEFAULT is not specified,
+# --with-doxygen assumes 'auto'.
+#
+# Interface to module:
+# HAVE_DOXYGEN: used in makefiles to conditionally generate documentation
+# DOXYGEN:	 returns the path of the doxygen program found
+#		 returns the path set by the user in the environment
+# --with-doxygen: 'yes' user instructs the module to use doxygen
+#		  'no' user instructs the module not to use doxygen
+#
+# If the user sets the value of DOXYGEN, AC_PATH_PROG skips testing the path.
+#
+AC_DEFUN([XORG_WITH_DOXYGEN],[
+AC_ARG_VAR([DOXYGEN], [Path to doxygen command])
+m4_define([_defopt], m4_default([$2], [auto]))
+AC_ARG_WITH(doxygen,
+	AS_HELP_STRING([--with-doxygen],
+	   [Use doxygen to regenerate documentation (default: ]_defopt[)]),
+	   [use_doxygen=$withval], [use_doxygen=]_defopt)
+m4_undefine([_defopt])
+
+if test "x$use_doxygen" = x"auto"; then
+   AC_PATH_PROG([DOXYGEN], [doxygen])
+   if test "x$DOXYGEN" = "x"; then
+        AC_MSG_WARN([doxygen not found - documentation targets will be skipped])
+	have_doxygen=no
+   else
+        have_doxygen=yes
+   fi
+elif test "x$use_doxygen" = x"yes" ; then
+   AC_PATH_PROG([DOXYGEN], [doxygen])
+   if test "x$DOXYGEN" = "x"; then
+        AC_MSG_ERROR([--with-doxygen=yes specified but doxygen not found in PATH])
+   fi
+   have_doxygen=yes
+elif test "x$use_doxygen" = x"no" ; then
+   if test "x$DOXYGEN" != "x"; then
+      AC_MSG_WARN([ignoring DOXYGEN environment variable since --with-doxygen=no was specified])
+   fi
+   have_doxygen=no
+else
+   AC_MSG_ERROR([--with-doxygen expects 'yes' or 'no'])
+fi
+m4_ifval([$1],
+[if test "$have_doxygen" = yes; then
+    # scrape the doxygen version
+    AC_MSG_CHECKING([the doxygen version])
+    doxygen_version=`$DOXYGEN --version 2>/dev/null`
+    AC_MSG_RESULT([$doxygen_version])
+    AS_VERSION_COMPARE([$doxygen_version], [$1],
+        [if test "x$use_doxygen" = xauto; then
+            AC_MSG_WARN([doxygen version $doxygen_version found, but $1 needed])
+            have_doxygen=no
+        else
+            AC_MSG_ERROR([doxygen version $doxygen_version found, but $1 needed])
+        fi])
+fi])
+AM_CONDITIONAL([HAVE_DOXYGEN], [test "$have_doxygen" = yes])
+]) # XORG_WITH_DOXYGEN
+
+# XORG_WITH_GROFF([DEFAULT])
+# ----------------
+# Minimum version: 1.6.0
+# Minimum version for optional DEFAULT argument: 1.11.0
+#
+# Documentation tools are not always available on all platforms and sometimes
+# not at the appropriate level. This macro enables a module to test for the
+# presence of the tool and obtain it's path in separate variables. Coupled with
+# the --with-groff option, it allows maximum flexibilty in making decisions
+# as whether or not to use the groff package. When DEFAULT is not specified,
+# --with-groff assumes 'auto'.
+#
+# Interface to module:
+# HAVE_GROFF:	 used in makefiles to conditionally generate documentation
+# HAVE_GROFF_MM: the memorandum macros (-mm) package
+# HAVE_GROFF_MS: the -ms macros package
+# GROFF:	 returns the path of the groff program found
+#		 returns the path set by the user in the environment
+# --with-groff:	 'yes' user instructs the module to use groff
+#		 'no' user instructs the module not to use groff
+#
+# Added in version 1.9.0:
+# HAVE_GROFF_HTML: groff has dependencies to output HTML format:
+#		   pnmcut pnmcrop pnmtopng pnmtops from the netpbm package.
+#		   psselect from the psutils package.
+#		   the ghostcript package. Refer to the grohtml man pages
+#
+# If the user sets the value of GROFF, AC_PATH_PROG skips testing the path.
+#
+# OS and distros often splits groff in a basic and full package, the former
+# having the groff program and the later having devices, fonts and macros
+# Checking for the groff executable is not enough.
+#
+# If macros are missing, we cannot assume that groff is useless, so we don't
+# unset HAVE_GROFF or GROFF env variables.
+# HAVE_GROFF_?? can never be true while HAVE_GROFF is false.
+#
+AC_DEFUN([XORG_WITH_GROFF],[
+AC_ARG_VAR([GROFF], [Path to groff command])
+m4_define([_defopt], m4_default([$1], [auto]))
+AC_ARG_WITH(groff,
+	AS_HELP_STRING([--with-groff],
+	   [Use groff to regenerate documentation (default: ]_defopt[)]),
+	   [use_groff=$withval], [use_groff=]_defopt)
+m4_undefine([_defopt])
+
+if test "x$use_groff" = x"auto"; then
+   AC_PATH_PROG([GROFF], [groff])
+   if test "x$GROFF" = "x"; then
+        AC_MSG_WARN([groff not found - documentation targets will be skipped])
+	have_groff=no
+   else
+        have_groff=yes
+   fi
+elif test "x$use_groff" = x"yes" ; then
+   AC_PATH_PROG([GROFF], [groff])
+   if test "x$GROFF" = "x"; then
+        AC_MSG_ERROR([--with-groff=yes specified but groff not found in PATH])
+   fi
+   have_groff=yes
+elif test "x$use_groff" = x"no" ; then
+   if test "x$GROFF" != "x"; then
+      AC_MSG_WARN([ignoring GROFF environment variable since --with-groff=no was specified])
+   fi
+   have_groff=no
+else
+   AC_MSG_ERROR([--with-groff expects 'yes' or 'no'])
+fi
+
+# We have groff, test for the presence of the macro packages
+if test "x$have_groff" = x"yes"; then
+    AC_MSG_CHECKING([for ${GROFF} -ms macros])
+    if ${GROFF} -ms -I. /dev/null >/dev/null 2>&1 ; then
+        groff_ms_works=yes
+    else
+        groff_ms_works=no
+    fi
+    AC_MSG_RESULT([$groff_ms_works])
+    AC_MSG_CHECKING([for ${GROFF} -mm macros])
+    if ${GROFF} -mm -I. /dev/null >/dev/null 2>&1 ; then
+        groff_mm_works=yes
+    else
+        groff_mm_works=no
+    fi
+    AC_MSG_RESULT([$groff_mm_works])
+fi
+
+# We have groff, test for HTML dependencies, one command per package
+if test "x$have_groff" = x"yes"; then
+   AC_PATH_PROGS(GS_PATH, [gs gswin32c])
+   AC_PATH_PROG(PNMTOPNG_PATH, [pnmtopng])
+   AC_PATH_PROG(PSSELECT_PATH, [psselect])
+   if test "x$GS_PATH" != "x" -a "x$PNMTOPNG_PATH" != "x" -a "x$PSSELECT_PATH" != "x"; then
+      have_groff_html=yes
+   else
+      have_groff_html=no
+      AC_MSG_WARN([grohtml dependencies not found - HTML Documentation skipped. Refer to grohtml man pages])
+   fi
+fi
+
+# Set Automake conditionals for Makefiles
+AM_CONDITIONAL([HAVE_GROFF], [test "$have_groff" = yes])
+AM_CONDITIONAL([HAVE_GROFF_MS], [test "$groff_ms_works" = yes])
+AM_CONDITIONAL([HAVE_GROFF_MM], [test "$groff_mm_works" = yes])
+AM_CONDITIONAL([HAVE_GROFF_HTML], [test "$have_groff_html" = yes])
+]) # XORG_WITH_GROFF
+
+# XORG_WITH_FOP([MIN-VERSION], [DEFAULT])
+# ---------------------------------------
+# Minimum version: 1.6.0
+# Minimum version for optional DEFAULT argument: 1.11.0
+# Minimum version for optional MIN-VERSION argument: 1.15.0
+#
+# Documentation tools are not always available on all platforms and sometimes
+# not at the appropriate level. This macro enables a module to test for the
+# presence of the tool and obtain it's path in separate variables. Coupled with
+# the --with-fop option, it allows maximum flexibilty in making decisions
+# as whether or not to use the fop package. When DEFAULT is not specified,
+# --with-fop assumes 'auto'.
+#
+# Interface to module:
+# HAVE_FOP: 	used in makefiles to conditionally generate documentation
+# FOP:	 	returns the path of the fop program found
+#		returns the path set by the user in the environment
+# --with-fop: 	'yes' user instructs the module to use fop
+#		'no' user instructs the module not to use fop
+#
+# If the user sets the value of FOP, AC_PATH_PROG skips testing the path.
+#
+AC_DEFUN([XORG_WITH_FOP],[
+AC_ARG_VAR([FOP], [Path to fop command])
+m4_define([_defopt], m4_default([$2], [auto]))
+AC_ARG_WITH(fop,
+	AS_HELP_STRING([--with-fop],
+	   [Use fop to regenerate documentation (default: ]_defopt[)]),
+	   [use_fop=$withval], [use_fop=]_defopt)
+m4_undefine([_defopt])
+
+if test "x$use_fop" = x"auto"; then
+   AC_PATH_PROG([FOP], [fop])
+   if test "x$FOP" = "x"; then
+        AC_MSG_WARN([fop not found - documentation targets will be skipped])
+	have_fop=no
+   else
+        have_fop=yes
+   fi
+elif test "x$use_fop" = x"yes" ; then
+   AC_PATH_PROG([FOP], [fop])
+   if test "x$FOP" = "x"; then
+        AC_MSG_ERROR([--with-fop=yes specified but fop not found in PATH])
+   fi
+   have_fop=yes
+elif test "x$use_fop" = x"no" ; then
+   if test "x$FOP" != "x"; then
+      AC_MSG_WARN([ignoring FOP environment variable since --with-fop=no was specified])
+   fi
+   have_fop=no
+else
+   AC_MSG_ERROR([--with-fop expects 'yes' or 'no'])
+fi
+
+# Test for a minimum version of fop, if provided.
+m4_ifval([$1],
+[if test "$have_fop" = yes; then
+    # scrape the fop version
+    AC_MSG_CHECKING([for fop minimum version])
+    fop_version=`$FOP -version 2>/dev/null | cut -d' ' -f3`
+    AC_MSG_RESULT([$fop_version])
+    AS_VERSION_COMPARE([$fop_version], [$1],
+        [if test "x$use_fop" = xauto; then
+            AC_MSG_WARN([fop version $fop_version found, but $1 needed])
+            have_fop=no
+        else
+            AC_MSG_ERROR([fop version $fop_version found, but $1 needed])
+        fi])
+fi])
+AM_CONDITIONAL([HAVE_FOP], [test "$have_fop" = yes])
+]) # XORG_WITH_FOP
+
+# XORG_WITH_PS2PDF([DEFAULT])
+# ----------------
+# Minimum version: 1.6.0
+# Minimum version for optional DEFAULT argument: 1.11.0
+#
+# Documentation tools are not always available on all platforms and sometimes
+# not at the appropriate level. This macro enables a module to test for the
+# presence of the tool and obtain it's path in separate variables. Coupled with
+# the --with-ps2pdf option, it allows maximum flexibilty in making decisions
+# as whether or not to use the ps2pdf package. When DEFAULT is not specified,
+# --with-ps2pdf assumes 'auto'.
+#
+# Interface to module:
+# HAVE_PS2PDF: 	used in makefiles to conditionally generate documentation
+# PS2PDF:	returns the path of the ps2pdf program found
+#		returns the path set by the user in the environment
+# --with-ps2pdf: 'yes' user instructs the module to use ps2pdf
+#		 'no' user instructs the module not to use ps2pdf
+#
+# If the user sets the value of PS2PDF, AC_PATH_PROG skips testing the path.
+#
+AC_DEFUN([XORG_WITH_PS2PDF],[
+AC_ARG_VAR([PS2PDF], [Path to ps2pdf command])
+m4_define([_defopt], m4_default([$1], [auto]))
+AC_ARG_WITH(ps2pdf,
+	AS_HELP_STRING([--with-ps2pdf],
+	   [Use ps2pdf to regenerate documentation (default: ]_defopt[)]),
+	   [use_ps2pdf=$withval], [use_ps2pdf=]_defopt)
+m4_undefine([_defopt])
+
+if test "x$use_ps2pdf" = x"auto"; then
+   AC_PATH_PROG([PS2PDF], [ps2pdf])
+   if test "x$PS2PDF" = "x"; then
+        AC_MSG_WARN([ps2pdf not found - documentation targets will be skipped])
+	have_ps2pdf=no
+   else
+        have_ps2pdf=yes
+   fi
+elif test "x$use_ps2pdf" = x"yes" ; then
+   AC_PATH_PROG([PS2PDF], [ps2pdf])
+   if test "x$PS2PDF" = "x"; then
+        AC_MSG_ERROR([--with-ps2pdf=yes specified but ps2pdf not found in PATH])
+   fi
+   have_ps2pdf=yes
+elif test "x$use_ps2pdf" = x"no" ; then
+   if test "x$PS2PDF" != "x"; then
+      AC_MSG_WARN([ignoring PS2PDF environment variable since --with-ps2pdf=no was specified])
+   fi
+   have_ps2pdf=no
+else
+   AC_MSG_ERROR([--with-ps2pdf expects 'yes' or 'no'])
+fi
+AM_CONDITIONAL([HAVE_PS2PDF], [test "$have_ps2pdf" = yes])
+]) # XORG_WITH_PS2PDF
+
+# XORG_ENABLE_DOCS (enable_docs=yes)
+# ----------------
+# Minimum version: 1.6.0
+#
+# Documentation tools are not always available on all platforms and sometimes
+# not at the appropriate level. This macro enables a builder to skip all
+# documentation targets except traditional man pages.
+# Combined with the specific tool checking macros XORG_WITH_*, it provides
+# maximum flexibilty in controlling documentation building.
+# Refer to:
+# XORG_WITH_XMLTO         --with-xmlto
+# XORG_WITH_ASCIIDOC      --with-asciidoc
+# XORG_WITH_DOXYGEN       --with-doxygen
+# XORG_WITH_FOP           --with-fop
+# XORG_WITH_GROFF         --with-groff
+# XORG_WITH_PS2PDF        --with-ps2pdf
+#
+# Interface to module:
+# ENABLE_DOCS: 	  used in makefiles to conditionally generate documentation
+# --enable-docs: 'yes' user instructs the module to generate docs
+#		 'no' user instructs the module not to generate docs
+# parm1:	specify the default value, yes or no.
+#
+AC_DEFUN([XORG_ENABLE_DOCS],[
+m4_define([docs_default], m4_default([$1], [yes]))
+AC_ARG_ENABLE(docs,
+	AS_HELP_STRING([--enable-docs],
+	   [Enable building the documentation (default: ]docs_default[)]),
+	   [build_docs=$enableval], [build_docs=]docs_default)
+m4_undefine([docs_default])
+AM_CONDITIONAL(ENABLE_DOCS, [test x$build_docs = xyes])
+AC_MSG_CHECKING([whether to build documentation])
+AC_MSG_RESULT([$build_docs])
+]) # XORG_ENABLE_DOCS
+
+# XORG_ENABLE_DEVEL_DOCS (enable_devel_docs=yes)
+# ----------------
+# Minimum version: 1.6.0
+#
+# This macro enables a builder to skip all developer documentation.
+# Combined with the specific tool checking macros XORG_WITH_*, it provides
+# maximum flexibilty in controlling documentation building.
+# Refer to:
+# XORG_WITH_XMLTO         --with-xmlto
+# XORG_WITH_ASCIIDOC      --with-asciidoc
+# XORG_WITH_DOXYGEN       --with-doxygen
+# XORG_WITH_FOP           --with-fop
+# XORG_WITH_GROFF         --with-groff
+# XORG_WITH_PS2PDF        --with-ps2pdf
+#
+# Interface to module:
+# ENABLE_DEVEL_DOCS:	used in makefiles to conditionally generate developer docs
+# --enable-devel-docs:	'yes' user instructs the module to generate developer docs
+#			'no' user instructs the module not to generate developer docs
+# parm1:		specify the default value, yes or no.
+#
+AC_DEFUN([XORG_ENABLE_DEVEL_DOCS],[
+m4_define([devel_default], m4_default([$1], [yes]))
+AC_ARG_ENABLE(devel-docs,
+	AS_HELP_STRING([--enable-devel-docs],
+	   [Enable building the developer documentation (default: ]devel_default[)]),
+	   [build_devel_docs=$enableval], [build_devel_docs=]devel_default)
+m4_undefine([devel_default])
+AM_CONDITIONAL(ENABLE_DEVEL_DOCS, [test x$build_devel_docs = xyes])
+AC_MSG_CHECKING([whether to build developer documentation])
+AC_MSG_RESULT([$build_devel_docs])
+]) # XORG_ENABLE_DEVEL_DOCS
+
+# XORG_ENABLE_SPECS (enable_specs=yes)
+# ----------------
+# Minimum version: 1.6.0
+#
+# This macro enables a builder to skip all functional specification targets.
+# Combined with the specific tool checking macros XORG_WITH_*, it provides
+# maximum flexibilty in controlling documentation building.
+# Refer to:
+# XORG_WITH_XMLTO         --with-xmlto
+# XORG_WITH_ASCIIDOC      --with-asciidoc
+# XORG_WITH_DOXYGEN       --with-doxygen
+# XORG_WITH_FOP           --with-fop
+# XORG_WITH_GROFF         --with-groff
+# XORG_WITH_PS2PDF        --with-ps2pdf
+#
+# Interface to module:
+# ENABLE_SPECS:		used in makefiles to conditionally generate specs
+# --enable-specs:	'yes' user instructs the module to generate specs
+#			'no' user instructs the module not to generate specs
+# parm1:		specify the default value, yes or no.
+#
+AC_DEFUN([XORG_ENABLE_SPECS],[
+m4_define([spec_default], m4_default([$1], [yes]))
+AC_ARG_ENABLE(specs,
+	AS_HELP_STRING([--enable-specs],
+	   [Enable building the specs (default: ]spec_default[)]),
+	   [build_specs=$enableval], [build_specs=]spec_default)
+m4_undefine([spec_default])
+AM_CONDITIONAL(ENABLE_SPECS, [test x$build_specs = xyes])
+AC_MSG_CHECKING([whether to build functional specifications])
+AC_MSG_RESULT([$build_specs])
+]) # XORG_ENABLE_SPECS
+
+# XORG_ENABLE_UNIT_TESTS (enable_unit_tests=auto)
+# ----------------------------------------------
+# Minimum version: 1.13.0
+#
+# This macro enables a builder to enable/disable unit testing
+# It makes no assumption about the test cases implementation
+# Test cases may or may not use Automake "Support for test suites"
+# They may or may not use the software utility library GLib
+#
+# When used in conjunction with XORG_WITH_GLIB, use both AM_CONDITIONAL
+# ENABLE_UNIT_TESTS and HAVE_GLIB. Not all unit tests may use glib.
+# The variable enable_unit_tests is used by other macros in this file.
+#
+# Interface to module:
+# ENABLE_UNIT_TESTS:	used in makefiles to conditionally build tests
+# enable_unit_tests:    used in configure.ac for additional configuration
+# --enable-unit-tests:	'yes' user instructs the module to build tests
+#			'no' user instructs the module not to build tests
+# parm1:		specify the default value, yes or no.
+#
+AC_DEFUN([XORG_ENABLE_UNIT_TESTS],[
+AC_BEFORE([$0], [XORG_WITH_GLIB])
+AC_BEFORE([$0], [XORG_LD_WRAP])
+AC_REQUIRE([XORG_MEMORY_CHECK_FLAGS])
+m4_define([_defopt], m4_default([$1], [auto]))
+AC_ARG_ENABLE(unit-tests, AS_HELP_STRING([--enable-unit-tests],
+	[Enable building unit test cases (default: ]_defopt[)]),
+	[enable_unit_tests=$enableval], [enable_unit_tests=]_defopt)
+m4_undefine([_defopt])
+AM_CONDITIONAL(ENABLE_UNIT_TESTS, [test "x$enable_unit_tests" != xno])
+AC_MSG_CHECKING([whether to build unit test cases])
+AC_MSG_RESULT([$enable_unit_tests])
+]) # XORG_ENABLE_UNIT_TESTS
+
+# XORG_ENABLE_INTEGRATION_TESTS (enable_unit_tests=auto)
+# ------------------------------------------------------
+# Minimum version: 1.17.0
+#
+# This macro enables a builder to enable/disable integration testing
+# It makes no assumption about the test cases' implementation
+# Test cases may or may not use Automake "Support for test suites"
+#
+# Please see XORG_ENABLE_UNIT_TESTS for unit test support. Unit test support
+# usually requires less dependencies and may be built and run under less
+# stringent environments than integration tests.
+#
+# Interface to module:
+# ENABLE_INTEGRATION_TESTS:   used in makefiles to conditionally build tests
+# enable_integration_tests:   used in configure.ac for additional configuration
+# --enable-integration-tests: 'yes' user instructs the module to build tests
+#                             'no' user instructs the module not to build tests
+# parm1:                      specify the default value, yes or no.
+#
+AC_DEFUN([XORG_ENABLE_INTEGRATION_TESTS],[
+AC_REQUIRE([XORG_MEMORY_CHECK_FLAGS])
+m4_define([_defopt], m4_default([$1], [auto]))
+AC_ARG_ENABLE(integration-tests, AS_HELP_STRING([--enable-integration-tests],
+	[Enable building integration test cases (default: ]_defopt[)]),
+	[enable_integration_tests=$enableval],
+	[enable_integration_tests=]_defopt)
+m4_undefine([_defopt])
+AM_CONDITIONAL([ENABLE_INTEGRATION_TESTS],
+	[test "x$enable_integration_tests" != xno])
+AC_MSG_CHECKING([whether to build unit test cases])
+AC_MSG_RESULT([$enable_integration_tests])
+]) # XORG_ENABLE_INTEGRATION_TESTS
+
+# XORG_WITH_GLIB([MIN-VERSION], [DEFAULT])
+# ----------------------------------------
+# Minimum version: 1.13.0
+#
+# GLib is a library which provides advanced data structures and functions.
+# This macro enables a module to test for the presence of Glib.
+#
+# When used with ENABLE_UNIT_TESTS, it is assumed GLib is used for unit testing.
+# Otherwise the value of $enable_unit_tests is blank.
+#
+# Please see XORG_ENABLE_INTEGRATION_TESTS for integration test support. Unit
+# test support usually requires less dependencies and may be built and run under
+# less stringent environments than integration tests.
+#
+# Interface to module:
+# HAVE_GLIB: used in makefiles to conditionally build targets
+# with_glib: used in configure.ac to know if GLib has been found
+# --with-glib:	'yes' user instructs the module to use glib
+#		'no' user instructs the module not to use glib
+#
+AC_DEFUN([XORG_WITH_GLIB],[
+AC_REQUIRE([PKG_PROG_PKG_CONFIG])
+m4_define([_defopt], m4_default([$2], [auto]))
+AC_ARG_WITH(glib, AS_HELP_STRING([--with-glib],
+	[Use GLib library for unit testing (default: ]_defopt[)]),
+	[with_glib=$withval], [with_glib=]_defopt)
+m4_undefine([_defopt])
+
+have_glib=no
+# Do not probe GLib if user explicitly disabled unit testing
+if test "x$enable_unit_tests" != x"no"; then
+  # Do not probe GLib if user explicitly disabled it
+  if test "x$with_glib" != x"no"; then
+    m4_ifval(
+      [$1],
+      [PKG_CHECK_MODULES([GLIB], [glib-2.0 >= $1], [have_glib=yes], [have_glib=no])],
+      [PKG_CHECK_MODULES([GLIB], [glib-2.0], [have_glib=yes], [have_glib=no])]
+    )
+  fi
+fi
+
+# Not having GLib when unit testing has been explicitly requested is an error
+if test "x$enable_unit_tests" = x"yes"; then
+  if test "x$have_glib" = x"no"; then
+    AC_MSG_ERROR([--enable-unit-tests=yes specified but glib-2.0 not found])
+  fi
+fi
+
+# Having unit testing disabled when GLib has been explicitly requested is an error
+if test "x$enable_unit_tests" = x"no"; then
+  if test "x$with_glib" = x"yes"; then
+    AC_MSG_ERROR([--enable-unit-tests=yes specified but glib-2.0 not found])
+  fi
+fi
+
+# Not having GLib when it has been explicitly requested is an error
+if test "x$with_glib" = x"yes"; then
+  if test "x$have_glib" = x"no"; then
+    AC_MSG_ERROR([--with-glib=yes specified but glib-2.0 not found])
+  fi
+fi
+
+AM_CONDITIONAL([HAVE_GLIB], [test "$have_glib" = yes])
+]) # XORG_WITH_GLIB
+
+# XORG_LD_WRAP([required|optional])
+# ---------------------------------
+# Minimum version: 1.13.0
+#
+# Check if linker supports -wrap, passed via compiler flags
+#
+# When used with ENABLE_UNIT_TESTS, it is assumed -wrap is used for unit testing.
+# Otherwise the value of $enable_unit_tests is blank.
+#
+# Argument added in 1.16.0 - default is "required", to match existing behavior
+# of returning an error if enable_unit_tests is yes, and ld -wrap is not
+# available, an argument of "optional" allows use when some unit tests require
+# ld -wrap and others do not.
+#
+AC_DEFUN([XORG_LD_WRAP],[
+XORG_CHECK_LINKER_FLAGS([-Wl,-wrap,exit],[have_ld_wrap=yes],[have_ld_wrap=no],
+    [AC_LANG_PROGRAM([#include <stdlib.h>
+                      void __wrap_exit(int status) { return; }],
+                     [exit(0);])])
+# Not having ld wrap when unit testing has been explicitly requested is an error
+if test "x$enable_unit_tests" = x"yes" -a "x$1" != "xoptional"; then
+  if test "x$have_ld_wrap" = x"no"; then
+    AC_MSG_ERROR([--enable-unit-tests=yes specified but ld -wrap support is not available])
+  fi
+fi
+AM_CONDITIONAL([HAVE_LD_WRAP], [test "$have_ld_wrap" = yes])
+#
+]) # XORG_LD_WRAP
+
+# XORG_CHECK_LINKER_FLAGS
+# -----------------------
+# SYNOPSIS
+#
+#   XORG_CHECK_LINKER_FLAGS(FLAGS, [ACTION-SUCCESS], [ACTION-FAILURE], [PROGRAM-SOURCE])
+#
+# DESCRIPTION
+#
+#   Check whether the given linker FLAGS work with the current language's
+#   linker, or whether they give an error.
+#
+#   ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on
+#   success/failure.
+#
+#   PROGRAM-SOURCE is the program source to link with, if needed
+#
+#   NOTE: Based on AX_CHECK_COMPILER_FLAGS.
+#
+# LICENSE
+#
+#   Copyright (c) 2009 Mike Frysinger <vapier@gentoo.org>
+#   Copyright (c) 2009 Steven G. Johnson <stevenj@alum.mit.edu>
+#   Copyright (c) 2009 Matteo Frigo
+#
+#   This program is free software: you can redistribute it and/or modify it
+#   under the terms of the GNU General Public License as published by the
+#   Free Software Foundation, either version 3 of the License, or (at your
+#   option) any later version.
+#
+#   This program is distributed in the hope that it will be useful, but
+#   WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+#   Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+#   As a special exception, the respective Autoconf Macro's copyright owner
+#   gives unlimited permission to copy, distribute and modify the configure
+#   scripts that are the output of Autoconf when processing the Macro. You
+#   need not follow the terms of the GNU General Public License when using
+#   or distributing such scripts, even though portions of the text of the
+#   Macro appear in them. The GNU General Public License (GPL) does govern
+#   all other use of the material that constitutes the Autoconf Macro.
+#
+#   This special exception to the GPL applies to versions of the Autoconf
+#   Macro released by the Autoconf Archive. When you make and distribute a
+#   modified version of the Autoconf Macro, you may extend this special
+#   exception to the GPL to apply to your modified version as well.#
+AC_DEFUN([XORG_CHECK_LINKER_FLAGS],
+[AC_MSG_CHECKING([whether the linker accepts $1])
+dnl Some hackery here since AC_CACHE_VAL can't handle a non-literal varname:
+AS_LITERAL_IF([$1],
+  [AC_CACHE_VAL(AS_TR_SH(xorg_cv_linker_flags_[$1]), [
+      ax_save_FLAGS=$LDFLAGS
+      LDFLAGS="$1"
+      AC_LINK_IFELSE([m4_default([$4],[AC_LANG_PROGRAM()])],
+        AS_TR_SH(xorg_cv_linker_flags_[$1])=yes,
+        AS_TR_SH(xorg_cv_linker_flags_[$1])=no)
+      LDFLAGS=$ax_save_FLAGS])],
+  [ax_save_FLAGS=$LDFLAGS
+   LDFLAGS="$1"
+   AC_LINK_IFELSE([AC_LANG_PROGRAM()],
+     eval AS_TR_SH(xorg_cv_linker_flags_[$1])=yes,
+     eval AS_TR_SH(xorg_cv_linker_flags_[$1])=no)
+   LDFLAGS=$ax_save_FLAGS])
+eval xorg_check_linker_flags=$AS_TR_SH(xorg_cv_linker_flags_[$1])
+AC_MSG_RESULT($xorg_check_linker_flags)
+if test "x$xorg_check_linker_flags" = xyes; then
+	m4_default([$2], :)
+else
+	m4_default([$3], :)
+fi
+]) # XORG_CHECK_LINKER_FLAGS
+
+# XORG_MEMORY_CHECK_FLAGS
+# -----------------------
+# Minimum version: 1.16.0
+#
+# This macro attempts to find appropriate memory checking functionality
+# for various platforms which unit testing code may use to catch various
+# forms of memory allocation and access errors in testing.
+#
+# Interface to module:
+# XORG_MALLOC_DEBUG_ENV - environment variables to set to enable debugging
+#                         Usually added to TESTS_ENVIRONMENT in Makefile.am
+#
+# If the user sets the value of XORG_MALLOC_DEBUG_ENV, it is used verbatim.
+#
+AC_DEFUN([XORG_MEMORY_CHECK_FLAGS],[
+
+AC_REQUIRE([AC_CANONICAL_HOST])
+AC_ARG_VAR([XORG_MALLOC_DEBUG_ENV],
+           [Environment variables to enable memory checking in tests])
+
+# Check for different types of support on different platforms
+case $host_os in
+    solaris*)
+        AC_CHECK_LIB([umem], [umem_alloc],
+            [malloc_debug_env='LD_PRELOAD=libumem.so UMEM_DEBUG=default'])
+        ;;
+    *-gnu*) # GNU libc - Value is used as a single byte bit pattern,
+        # both directly and inverted, so should not be 0 or 255.
+        malloc_debug_env='MALLOC_PERTURB_=15'
+        ;;
+    darwin*)
+        malloc_debug_env='MallocPreScribble=1 MallocScribble=1 DYLD_INSERT_LIBRARIES=/usr/lib/libgmalloc.dylib'
+        ;;
+    *bsd*)
+        malloc_debug_env='MallocPreScribble=1 MallocScribble=1'
+        ;;
+esac
+
+# User supplied flags override default flags
+if test "x$XORG_MALLOC_DEBUG_ENV" != "x"; then
+    malloc_debug_env="$XORG_MALLOC_DEBUG_ENV"
+fi
+
+AC_SUBST([XORG_MALLOC_DEBUG_ENV],[$malloc_debug_env])
+]) # XORG_WITH_LINT
+
+# XORG_CHECK_MALLOC_ZERO
+# ----------------------
+# Minimum version: 1.0.0
+#
+# Defines {MALLOC,XMALLOC,XTMALLOC}_ZERO_CFLAGS appropriately if
+# malloc(0) returns NULL.  Packages should add one of these cflags to
+# their AM_CFLAGS (or other appropriate *_CFLAGS) to use them.
+AC_DEFUN([XORG_CHECK_MALLOC_ZERO],[
+AC_ARG_ENABLE(malloc0returnsnull,
+	AS_HELP_STRING([--enable-malloc0returnsnull],
+		       [malloc(0) returns NULL (default: auto)]),
+	[MALLOC_ZERO_RETURNS_NULL=$enableval],
+	[MALLOC_ZERO_RETURNS_NULL=auto])
+
+AC_MSG_CHECKING([whether malloc(0) returns NULL])
+if test "x$MALLOC_ZERO_RETURNS_NULL" = xauto; then
+	AC_RUN_IFELSE([AC_LANG_PROGRAM([
+#include <stdlib.h>
+],[
+    char *m0, *r0, *c0, *p;
+    m0 = malloc(0);
+    p = malloc(10);
+    r0 = realloc(p,0);
+    c0 = calloc(0,10);
+    exit((m0 == 0 || r0 == 0 || c0 == 0) ? 0 : 1);
+])],
+		[MALLOC_ZERO_RETURNS_NULL=yes],
+		[MALLOC_ZERO_RETURNS_NULL=no],
+		[MALLOC_ZERO_RETURNS_NULL=yes])
+fi
+AC_MSG_RESULT([$MALLOC_ZERO_RETURNS_NULL])
+
+if test "x$MALLOC_ZERO_RETURNS_NULL" = xyes; then
+	MALLOC_ZERO_CFLAGS="-DMALLOC_0_RETURNS_NULL"
+	XMALLOC_ZERO_CFLAGS=$MALLOC_ZERO_CFLAGS
+	XTMALLOC_ZERO_CFLAGS="$MALLOC_ZERO_CFLAGS -DXTMALLOC_BC"
+else
+	MALLOC_ZERO_CFLAGS=""
+	XMALLOC_ZERO_CFLAGS=""
+	XTMALLOC_ZERO_CFLAGS=""
+fi
+
+AC_SUBST([MALLOC_ZERO_CFLAGS])
+AC_SUBST([XMALLOC_ZERO_CFLAGS])
+AC_SUBST([XTMALLOC_ZERO_CFLAGS])
+]) # XORG_CHECK_MALLOC_ZERO
+
+# XORG_WITH_LINT()
+# ----------------
+# Minimum version: 1.1.0
+#
+# This macro enables the use of a tool that flags some suspicious and
+# non-portable constructs (likely to be bugs) in C language source code.
+# It will attempt to locate the tool and use appropriate options.
+# There are various lint type tools on different platforms.
+#
+# Interface to module:
+# LINT:		returns the path to the tool found on the platform
+#		or the value set to LINT on the configure cmd line
+#		also an Automake conditional
+# LINT_FLAGS:	an Automake variable with appropriate flags
+#
+# --with-lint:	'yes' user instructs the module to use lint
+#		'no' user instructs the module not to use lint (default)
+#
+# If the user sets the value of LINT, AC_PATH_PROG skips testing the path.
+# If the user sets the value of LINT_FLAGS, they are used verbatim.
+#
+AC_DEFUN([XORG_WITH_LINT],[
+
+AC_ARG_VAR([LINT], [Path to a lint-style command])
+AC_ARG_VAR([LINT_FLAGS], [Flags for the lint-style command])
+AC_ARG_WITH(lint, [AS_HELP_STRING([--with-lint],
+		[Use a lint-style source code checker (default: disabled)])],
+		[use_lint=$withval], [use_lint=no])
+
+# Obtain platform specific info like program name and options
+# The lint program on FreeBSD and NetBSD is different from the one on Solaris
+case $host_os in
+  *linux* | *openbsd* | kfreebsd*-gnu | darwin* | cygwin*)
+	lint_name=splint
+	lint_options="-badflag"
+	;;
+  *freebsd* | *netbsd*)
+	lint_name=lint
+	lint_options="-u -b"
+	;;
+  *solaris*)
+	lint_name=lint
+	lint_options="-u -b -h -erroff=E_INDISTING_FROM_TRUNC2"
+	;;
+esac
+
+# Test for the presence of the program (either guessed by the code or spelled out by the user)
+if test "x$use_lint" = x"yes" ; then
+   AC_PATH_PROG([LINT], [$lint_name])
+   if test "x$LINT" = "x"; then
+        AC_MSG_ERROR([--with-lint=yes specified but lint-style tool not found in PATH])
+   fi
+elif test "x$use_lint" = x"no" ; then
+   if test "x$LINT" != "x"; then
+      AC_MSG_WARN([ignoring LINT environment variable since --with-lint=no was specified])
+   fi
+else
+   AC_MSG_ERROR([--with-lint expects 'yes' or 'no'. Use LINT variable to specify path.])
+fi
+
+# User supplied flags override default flags
+if test "x$LINT_FLAGS" != "x"; then
+   lint_options=$LINT_FLAGS
+fi
+
+AC_SUBST([LINT_FLAGS],[$lint_options])
+AM_CONDITIONAL(LINT, [test "x$LINT" != x])
+
+]) # XORG_WITH_LINT
+
+# XORG_LINT_LIBRARY(LIBNAME)
+# --------------------------
+# Minimum version: 1.1.0
+#
+# Sets up flags for building lint libraries for checking programs that call
+# functions in the library.
+#
+# Interface to module:
+# LINTLIB		- Automake variable with the name of lint library file to make
+# MAKE_LINT_LIB		- Automake conditional
+#
+# --enable-lint-library:  - 'yes' user instructs the module to created a lint library
+#			  - 'no' user instructs the module not to create a lint library (default)
+
+AC_DEFUN([XORG_LINT_LIBRARY],[
+AC_REQUIRE([XORG_WITH_LINT])
+AC_ARG_ENABLE(lint-library, [AS_HELP_STRING([--enable-lint-library],
+	[Create lint library (default: disabled)])],
+	[make_lint_lib=$enableval], [make_lint_lib=no])
+
+if test "x$make_lint_lib" = x"yes" ; then
+   LINTLIB=llib-l$1.ln
+   if test "x$LINT" = "x"; then
+        AC_MSG_ERROR([Cannot make lint library without --with-lint])
+   fi
+elif test "x$make_lint_lib" != x"no" ; then
+   AC_MSG_ERROR([--enable-lint-library expects 'yes' or 'no'.])
+fi
+
+AC_SUBST(LINTLIB)
+AM_CONDITIONAL(MAKE_LINT_LIB, [test x$make_lint_lib != xno])
+
+]) # XORG_LINT_LIBRARY
+
+# XORG_COMPILER_BRAND
+# -------------------
+# Minimum version: 1.14.0
+#
+# Checks for various brands of compilers and sets flags as appropriate:
+#   GNU gcc - relies on AC_PROG_CC (via AC_PROG_CC_C99) to set GCC to "yes"
+#   GNU g++ - relies on AC_PROG_CXX to set GXX to "yes"
+#   clang compiler - sets CLANGCC to "yes"
+#   Intel compiler - sets INTELCC to "yes"
+#   Sun/Oracle Solaris Studio cc - sets SUNCC to "yes"
+#
+AC_DEFUN([XORG_COMPILER_BRAND], [
+AC_LANG_CASE(
+	[C], [
+		AC_REQUIRE([AC_PROG_CC_C99])
+	],
+	[C++], [
+		AC_REQUIRE([AC_PROG_CXX])
+	]
+)
+AC_CHECK_DECL([__clang__], [CLANGCC="yes"], [CLANGCC="no"])
+AC_CHECK_DECL([__INTEL_COMPILER], [INTELCC="yes"], [INTELCC="no"])
+AC_CHECK_DECL([__SUNPRO_C], [SUNCC="yes"], [SUNCC="no"])
+]) # XORG_COMPILER_BRAND
+
+# XORG_TESTSET_CFLAG(<variable>, <flag>, [<alternative flag>, ...])
+# ---------------
+# Minimum version: 1.16.0
+#
+# Test if the compiler works when passed the given flag as a command line argument.
+# If it succeeds, the flag is appeneded to the given variable.  If not, it tries the
+# next flag in the list until there are no more options.
+#
+# Note that this does not guarantee that the compiler supports the flag as some
+# compilers will simply ignore arguments that they do not understand, but we do
+# attempt to weed out false positives by using -Werror=unknown-warning-option and
+# -Werror=unused-command-line-argument
+#
+AC_DEFUN([XORG_TESTSET_CFLAG], [
+m4_if([$#], 0, [m4_fatal([XORG_TESTSET_CFLAG was given with an unsupported number of arguments])])
+m4_if([$#], 1, [m4_fatal([XORG_TESTSET_CFLAG was given with an unsupported number of arguments])])
+
+AC_LANG_COMPILER_REQUIRE
+
+AC_LANG_CASE(
+	[C], [
+		AC_REQUIRE([AC_PROG_CC_C99])
+		define([PREFIX], [C])
+		define([CACHE_PREFIX], [cc])
+		define([COMPILER], [$CC])
+	],
+	[C++], [
+		define([PREFIX], [CXX])
+		define([CACHE_PREFIX], [cxx])
+		define([COMPILER], [$CXX])
+	]
+)
+
+[xorg_testset_save_]PREFIX[FLAGS]="$PREFIX[FLAGS]"
+
+if test "x$[xorg_testset_]CACHE_PREFIX[_unknown_warning_option]" = "x" ; then
+	PREFIX[FLAGS]="$PREFIX[FLAGS] -Werror=unknown-warning-option"
+	AC_CACHE_CHECK([if ]COMPILER[ supports -Werror=unknown-warning-option],
+			[xorg_cv_]CACHE_PREFIX[_flag_unknown_warning_option],
+			AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])],
+					  [xorg_cv_]CACHE_PREFIX[_flag_unknown_warning_option=yes],
+					  [xorg_cv_]CACHE_PREFIX[_flag_unknown_warning_option=no]))
+	[xorg_testset_]CACHE_PREFIX[_unknown_warning_option]=$[xorg_cv_]CACHE_PREFIX[_flag_unknown_warning_option]
+	PREFIX[FLAGS]="$[xorg_testset_save_]PREFIX[FLAGS]"
+fi
+
+if test "x$[xorg_testset_]CACHE_PREFIX[_unused_command_line_argument]" = "x" ; then
+	if test "x$[xorg_testset_]CACHE_PREFIX[_unknown_warning_option]" = "xyes" ; then
+		PREFIX[FLAGS]="$PREFIX[FLAGS] -Werror=unknown-warning-option"
+	fi
+	PREFIX[FLAGS]="$PREFIX[FLAGS] -Werror=unused-command-line-argument"
+	AC_CACHE_CHECK([if ]COMPILER[ supports -Werror=unused-command-line-argument],
+			[xorg_cv_]CACHE_PREFIX[_flag_unused_command_line_argument],
+			AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])],
+					  [xorg_cv_]CACHE_PREFIX[_flag_unused_command_line_argument=yes],
+					  [xorg_cv_]CACHE_PREFIX[_flag_unused_command_line_argument=no]))
+	[xorg_testset_]CACHE_PREFIX[_unused_command_line_argument]=$[xorg_cv_]CACHE_PREFIX[_flag_unused_command_line_argument]
+	PREFIX[FLAGS]="$[xorg_testset_save_]PREFIX[FLAGS]"
+fi
+
+found="no"
+m4_foreach([flag], m4_cdr($@), [
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			PREFIX[FLAGS]="$PREFIX[FLAGS] -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			PREFIX[FLAGS]="$PREFIX[FLAGS] -Werror=unused-command-line-argument"
+		fi
+
+		PREFIX[FLAGS]="$PREFIX[FLAGS] ]flag["
+
+dnl Some hackery here since AC_CACHE_VAL can't handle a non-literal varname
+		AC_MSG_CHECKING([if ]COMPILER[ supports ]flag[])
+		cacheid=AS_TR_SH([xorg_cv_]CACHE_PREFIX[_flag_]flag[])
+		AC_CACHE_VAL($cacheid,
+			     [AC_LINK_IFELSE([AC_LANG_PROGRAM([int i;])],
+					     [eval $cacheid=yes],
+					     [eval $cacheid=no])])
+
+		PREFIX[FLAGS]="$[xorg_testset_save_]PREFIX[FLAGS]"
+
+		eval supported=\$$cacheid
+		AC_MSG_RESULT([$supported])
+		if test "$supported" = "yes" ; then
+			$1="$$1 ]flag["
+			found="yes"
+		fi
+	fi
+])
+]) # XORG_TESTSET_CFLAG
+
+# XORG_COMPILER_FLAGS
+# ---------------
+# Minimum version: 1.16.0
+#
+# Defines BASE_CFLAGS or BASE_CXXFLAGS to contain a set of command line
+# arguments supported by the selected compiler which do NOT alter the generated
+# code.  These arguments will cause the compiler to print various warnings
+# during compilation AND turn a conservative set of warnings into errors.
+#
+# The set of flags supported by BASE_CFLAGS and BASE_CXXFLAGS will grow in
+# future versions of util-macros as options are added to new compilers.
+#
+AC_DEFUN([XORG_COMPILER_FLAGS], [
+AC_REQUIRE([XORG_COMPILER_BRAND])
+
+AC_ARG_ENABLE(selective-werror,
+              AS_HELP_STRING([--disable-selective-werror],
+                             [Turn off selective compiler errors. (default: enabled)]),
+              [SELECTIVE_WERROR=$enableval],
+              [SELECTIVE_WERROR=yes])
+
+AC_LANG_CASE(
+        [C], [
+                define([PREFIX], [C])
+        ],
+        [C++], [
+                define([PREFIX], [CXX])
+        ]
+)
+# -v is too short to test reliably with XORG_TESTSET_CFLAG
+if test "x$SUNCC" = "xyes"; then
+    [BASE_]PREFIX[FLAGS]="-v"
+else
+    [BASE_]PREFIX[FLAGS]=""
+fi
+
+# This chunk of warnings were those that existed in the legacy CWARNFLAGS
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wall])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wpointer-arith])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wmissing-declarations])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wformat=2], [-Wformat])
+
+AC_LANG_CASE(
+	[C], [
+		XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wstrict-prototypes])
+		XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wmissing-prototypes])
+		XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wnested-externs])
+		XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wbad-function-cast])
+		XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wold-style-definition])
+		XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wdeclaration-after-statement])
+	]
+)
+
+# This chunk adds additional warnings that could catch undesired effects.
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wunused])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wuninitialized])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wshadow])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wcast-qual])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wmissing-noreturn])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wmissing-format-attribute])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wredundant-decls])
+
+# These are currently disabled because they are noisy.  They will be enabled
+# in the future once the codebase is sufficiently modernized to silence
+# them.  For now, I don't want them to drown out the other warnings.
+# XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wlogical-op])
+# XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wparentheses])
+# XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wcast-align])
+
+# Turn some warnings into errors, so we don't accidently get successful builds
+# when there are problems that should be fixed.
+
+if test "x$SELECTIVE_WERROR" = "xyes" ; then
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Werror=implicit], [-errwarn=E_NO_EXPLICIT_TYPE_GIVEN -errwarn=E_NO_IMPLICIT_DECL_ALLOWED])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Werror=nonnull])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Werror=init-self])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Werror=main])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Werror=missing-braces])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Werror=sequence-point])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Werror=return-type], [-errwarn=E_FUNC_HAS_NO_RETURN_STMT])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Werror=trigraphs])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Werror=array-bounds])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Werror=write-strings])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Werror=address])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Werror=int-to-pointer-cast], [-errwarn=E_BAD_PTR_INT_COMBINATION])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Werror=pointer-to-int-cast]) # Also -errwarn=E_BAD_PTR_INT_COMBINATION
+else
+AC_MSG_WARN([You have chosen not to turn some select compiler warnings into errors.  This should not be necessary.  Please report why you needed to do so in a bug report at $PACKAGE_BUGREPORT])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wimplicit])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wnonnull])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Winit-self])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wmain])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wmissing-braces])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wsequence-point])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wreturn-type])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wtrigraphs])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Warray-bounds])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wwrite-strings])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Waddress])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wint-to-pointer-cast])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wpointer-to-int-cast])
+fi
+
+AC_SUBST([BASE_]PREFIX[FLAGS])
+]) # XORG_COMPILER_FLAGS
+
+# XORG_CWARNFLAGS
+# ---------------
+# Minimum version: 1.2.0
+# Deprecated since: 1.16.0 (Use XORG_COMPILER_FLAGS instead)
+#
+# Defines CWARNFLAGS to enable C compiler warnings.
+#
+# This function is deprecated because it defines -fno-strict-aliasing
+# which alters the code generated by the compiler.  If -fno-strict-aliasing
+# is needed, then it should be added explicitly in the module when
+# it is updated to use BASE_CFLAGS.
+#
+AC_DEFUN([XORG_CWARNFLAGS], [
+AC_REQUIRE([XORG_COMPILER_FLAGS])
+AC_REQUIRE([XORG_COMPILER_BRAND])
+AC_LANG_CASE(
+	[C], [
+		CWARNFLAGS="$BASE_CFLAGS"
+		if  test "x$GCC" = xyes ; then
+		    CWARNFLAGS="$CWARNFLAGS -fno-strict-aliasing"
+		fi
+		AC_SUBST(CWARNFLAGS)
+	]
+)
+]) # XORG_CWARNFLAGS
+
+# XORG_STRICT_OPTION
+# -----------------------
+# Minimum version: 1.3.0
+#
+# Add configure option to enable strict compilation flags, such as treating
+# warnings as fatal errors.
+# If --enable-strict-compilation is passed to configure, adds strict flags to
+# $BASE_CFLAGS or $BASE_CXXFLAGS and the deprecated $CWARNFLAGS.
+#
+# Starting in 1.14.0 also exports $STRICT_CFLAGS for use in other tests or
+# when strict compilation is unconditionally desired.
+AC_DEFUN([XORG_STRICT_OPTION], [
+AC_REQUIRE([XORG_CWARNFLAGS])
+AC_REQUIRE([XORG_COMPILER_FLAGS])
+
+AC_ARG_ENABLE(strict-compilation,
+			  AS_HELP_STRING([--enable-strict-compilation],
+			  [Enable all warnings from compiler and make them errors (default: disabled)]),
+			  [STRICT_COMPILE=$enableval], [STRICT_COMPILE=no])
+
+AC_LANG_CASE(
+        [C], [
+                define([PREFIX], [C])
+        ],
+        [C++], [
+                define([PREFIX], [CXX])
+        ]
+)
+
+[STRICT_]PREFIX[FLAGS]=""
+XORG_TESTSET_CFLAG([[STRICT_]PREFIX[FLAGS]], [-pedantic])
+XORG_TESTSET_CFLAG([[STRICT_]PREFIX[FLAGS]], [-Werror], [-errwarn])
+
+# Earlier versions of gcc (eg: 4.2) support -Werror=attributes, but do not
+# activate it with -Werror, so we add it here explicitly.
+XORG_TESTSET_CFLAG([[STRICT_]PREFIX[FLAGS]], [-Werror=attributes])
+
+if test "x$STRICT_COMPILE" = "xyes"; then
+    [BASE_]PREFIX[FLAGS]="$[BASE_]PREFIX[FLAGS] $[STRICT_]PREFIX[FLAGS]"
+    AC_LANG_CASE([C], [CWARNFLAGS="$CWARNFLAGS $STRICT_CFLAGS"])
+fi
+AC_SUBST([STRICT_]PREFIX[FLAGS])
+AC_SUBST([BASE_]PREFIX[FLAGS])
+AC_LANG_CASE([C], AC_SUBST([CWARNFLAGS]))
+]) # XORG_STRICT_OPTION
+
+# XORG_DEFAULT_OPTIONS
+# --------------------
+# Minimum version: 1.3.0
+#
+# Defines default options for X.Org modules.
+#
+AC_DEFUN([XORG_DEFAULT_OPTIONS], [
+AC_REQUIRE([AC_PROG_INSTALL])
+XORG_COMPILER_FLAGS
+XORG_CWARNFLAGS
+XORG_STRICT_OPTION
+XORG_RELEASE_VERSION
+XORG_CHANGELOG
+XORG_INSTALL
+XORG_MANPAGE_SECTIONS
+m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])],
+    [AC_SUBST([AM_DEFAULT_VERBOSITY], [1])])
+]) # XORG_DEFAULT_OPTIONS
+
+# XORG_INSTALL()
+# ----------------
+# Minimum version: 1.4.0
+#
+# Defines the variable INSTALL_CMD as the command to copy
+# INSTALL from $prefix/share/util-macros.
+#
+AC_DEFUN([XORG_INSTALL], [
+AC_REQUIRE([PKG_PROG_PKG_CONFIG])
+macros_datadir=`$PKG_CONFIG --print-errors --variable=pkgdatadir xorg-macros`
+INSTALL_CMD="(cp -f "$macros_datadir/INSTALL" \$(top_srcdir)/.INSTALL.tmp && \
+mv \$(top_srcdir)/.INSTALL.tmp \$(top_srcdir)/INSTALL) \
+|| (rm -f \$(top_srcdir)/.INSTALL.tmp; touch \$(top_srcdir)/INSTALL; \
+echo 'util-macros \"pkgdatadir\" from xorg-macros.pc not found: installing possibly empty INSTALL.' >&2)"
+AC_SUBST([INSTALL_CMD])
+]) # XORG_INSTALL
+dnl Copyright 2005 Red Hat, Inc
+dnl
+dnl Permission to use, copy, modify, distribute, and sell this software and its
+dnl documentation for any purpose is hereby granted without fee, provided that
+dnl the above copyright notice appear in all copies and that both that
+dnl copyright notice and this permission notice appear in supporting
+dnl documentation.
+dnl
+dnl The above copyright notice and this permission notice shall be included
+dnl in all copies or substantial portions of the Software.
+dnl
+dnl THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+dnl OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+dnl MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+dnl IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
+dnl OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+dnl ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+dnl OTHER DEALINGS IN THE SOFTWARE.
+dnl
+dnl Except as contained in this notice, the name of the copyright holders shall
+dnl not be used in advertising or otherwise to promote the sale, use or
+dnl other dealings in this Software without prior written authorization
+dnl from the copyright holders.
+dnl
+
+# XORG_RELEASE_VERSION
+# --------------------
+# Defines PACKAGE_VERSION_{MAJOR,MINOR,PATCHLEVEL} for modules to use.
+ 
+AC_DEFUN([XORG_RELEASE_VERSION],[
+	AC_DEFINE_UNQUOTED([PACKAGE_VERSION_MAJOR],
+		[`echo $PACKAGE_VERSION | cut -d . -f 1`],
+		[Major version of this package])
+	PVM=`echo $PACKAGE_VERSION | cut -d . -f 2 | cut -d - -f 1`
+	if test "x$PVM" = "x"; then
+		PVM="0"
+	fi
+	AC_DEFINE_UNQUOTED([PACKAGE_VERSION_MINOR],
+		[$PVM],
+		[Minor version of this package])
+	PVP=`echo $PACKAGE_VERSION | cut -d . -f 3 | cut -d - -f 1`
+	if test "x$PVP" = "x"; then
+		PVP="0"
+	fi
+	AC_DEFINE_UNQUOTED([PACKAGE_VERSION_PATCHLEVEL],
+		[$PVP],
+		[Patch version of this package])
+])
+
+# XORG_CHANGELOG()
+# ----------------
+# Minimum version: 1.2.0
+#
+# Defines the variable CHANGELOG_CMD as the command to generate
+# ChangeLog from git.
+#
+#
+AC_DEFUN([XORG_CHANGELOG], [
+CHANGELOG_CMD="(GIT_DIR=\$(top_srcdir)/.git git log > \$(top_srcdir)/.changelog.tmp && \
+mv \$(top_srcdir)/.changelog.tmp \$(top_srcdir)/ChangeLog) \
+|| (rm -f \$(top_srcdir)/.changelog.tmp; touch \$(top_srcdir)/ChangeLog; \
+echo 'git directory not found: installing possibly empty changelog.' >&2)"
+AC_SUBST([CHANGELOG_CMD])
+]) # XORG_CHANGELOG
+
diff --git a/proto/presentproto/config.guess b/proto/presentproto/config.guess
new file mode 100644
index 000000000..120cc0d23
--- /dev/null
+++ b/proto/presentproto/config.guess
@@ -0,0 +1,1552 @@
+#! /bin/sh
+# Attempt to guess a canonical system name.
+#   Copyright 1992-2013 Free Software Foundation, Inc.
+
+timestamp='2013-05-16'
+
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <http://www.gnu.org/licenses/>.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that
+# program.  This Exception is an additional permission under section 7
+# of the GNU General Public License, version 3 ("GPLv3").
+#
+# Originally written by Per Bothner.
+#
+# You can get the latest version of this script from:
+# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD
+#
+# Please send patches with a ChangeLog entry to config-patches@gnu.org.
+
+
+me=`echo "$0" | sed -e 's,.*/,,'`
+
+usage="\
+Usage: $0 [OPTION]
+
+Output the configuration name of the system \`$me' is run on.
+
+Operation modes:
+  -h, --help         print this help, then exit
+  -t, --time-stamp   print date of last modification, then exit
+  -v, --version      print version number, then exit
+
+Report bugs and patches to <config-patches@gnu.org>."
+
+version="\
+GNU config.guess ($timestamp)
+
+Originally written by Per Bothner.
+Copyright 1992-2013 Free Software Foundation, Inc.
+
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+  case $1 in
+    --time-stamp | --time* | -t )
+       echo "$timestamp" ; exit ;;
+    --version | -v )
+       echo "$version" ; exit ;;
+    --help | --h* | -h )
+       echo "$usage"; exit ;;
+    -- )     # Stop option processing
+       shift; break ;;
+    - )	# Use stdin as input.
+       break ;;
+    -* )
+       echo "$me: invalid option $1$help" >&2
+       exit 1 ;;
+    * )
+       break ;;
+  esac
+done
+
+if test $# != 0; then
+  echo "$me: too many arguments$help" >&2
+  exit 1
+fi
+
+trap 'exit 1' 1 2 15
+
+# CC_FOR_BUILD -- compiler used by this script. Note that the use of a
+# compiler to aid in system detection is discouraged as it requires
+# temporary files to be created and, as you can see below, it is a
+# headache to deal with in a portable fashion.
+
+# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still
+# use `HOST_CC' if defined, but it is deprecated.
+
+# Portable tmp directory creation inspired by the Autoconf team.
+
+set_cc_for_build='
+trap "exitcode=\$?; (rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null) && exit \$exitcode" 0 ;
+trap "rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null; exit 1" 1 2 13 15 ;
+: ${TMPDIR=/tmp} ;
+ { tmp=`(umask 077 && mktemp -d "$TMPDIR/cgXXXXXX") 2>/dev/null` && test -n "$tmp" && test -d "$tmp" ; } ||
+ { test -n "$RANDOM" && tmp=$TMPDIR/cg$$-$RANDOM && (umask 077 && mkdir $tmp) ; } ||
+ { tmp=$TMPDIR/cg-$$ && (umask 077 && mkdir $tmp) && echo "Warning: creating insecure temp directory" >&2 ; } ||
+ { echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 1 ; } ;
+dummy=$tmp/dummy ;
+tmpfiles="$dummy.c $dummy.o $dummy.rel $dummy" ;
+case $CC_FOR_BUILD,$HOST_CC,$CC in
+ ,,)    echo "int x;" > $dummy.c ;
+	for c in cc gcc c89 c99 ; do
+	  if ($c -c -o $dummy.o $dummy.c) >/dev/null 2>&1 ; then
+	     CC_FOR_BUILD="$c"; break ;
+	  fi ;
+	done ;
+	if test x"$CC_FOR_BUILD" = x ; then
+	  CC_FOR_BUILD=no_compiler_found ;
+	fi
+	;;
+ ,,*)   CC_FOR_BUILD=$CC ;;
+ ,*,*)  CC_FOR_BUILD=$HOST_CC ;;
+esac ; set_cc_for_build= ;'
+
+# This is needed to find uname on a Pyramid OSx when run in the BSD universe.
+# (ghazi@noc.rutgers.edu 1994-08-24)
+if (test -f /.attbin/uname) >/dev/null 2>&1 ; then
+	PATH=$PATH:/.attbin ; export PATH
+fi
+
+UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown
+UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
+UNAME_SYSTEM=`(uname -s) 2>/dev/null`  || UNAME_SYSTEM=unknown
+UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
+
+case "${UNAME_SYSTEM}" in
+Linux|GNU|GNU/*)
+	# If the system lacks a compiler, then just pick glibc.
+	# We could probably try harder.
+	LIBC=gnu
+
+	eval $set_cc_for_build
+	cat <<-EOF > $dummy.c
+	#include <features.h>
+	#if defined(__UCLIBC__)
+	LIBC=uclibc
+	#elif defined(__dietlibc__)
+	LIBC=dietlibc
+	#else
+	LIBC=gnu
+	#endif
+	EOF
+	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^LIBC'`
+	;;
+esac
+
+# Note: order is significant - the case branches are not exclusive.
+
+case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
+    *:NetBSD:*:*)
+	# NetBSD (nbsd) targets should (where applicable) match one or
+	# more of the tuples: *-*-netbsdelf*, *-*-netbsdaout*,
+	# *-*-netbsdecoff* and *-*-netbsd*.  For targets that recently
+	# switched to ELF, *-*-netbsd* would select the old
+	# object file format.  This provides both forward
+	# compatibility and a consistent mechanism for selecting the
+	# object file format.
+	#
+	# Note: NetBSD doesn't particularly care about the vendor
+	# portion of the name.  We always set it to "unknown".
+	sysctl="sysctl -n hw.machine_arch"
+	UNAME_MACHINE_ARCH=`(/sbin/$sysctl 2>/dev/null || \
+	    /usr/sbin/$sysctl 2>/dev/null || echo unknown)`
+	case "${UNAME_MACHINE_ARCH}" in
+	    armeb) machine=armeb-unknown ;;
+	    arm*) machine=arm-unknown ;;
+	    sh3el) machine=shl-unknown ;;
+	    sh3eb) machine=sh-unknown ;;
+	    sh5el) machine=sh5le-unknown ;;
+	    *) machine=${UNAME_MACHINE_ARCH}-unknown ;;
+	esac
+	# The Operating System including object format, if it has switched
+	# to ELF recently, or will in the future.
+	case "${UNAME_MACHINE_ARCH}" in
+	    arm*|i386|m68k|ns32k|sh3*|sparc|vax)
+		eval $set_cc_for_build
+		if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
+			| grep -q __ELF__
+		then
+		    # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout).
+		    # Return netbsd for either.  FIX?
+		    os=netbsd
+		else
+		    os=netbsdelf
+		fi
+		;;
+	    *)
+		os=netbsd
+		;;
+	esac
+	# The OS release
+	# Debian GNU/NetBSD machines have a different userland, and
+	# thus, need a distinct triplet. However, they do not need
+	# kernel version information, so it can be replaced with a
+	# suitable tag, in the style of linux-gnu.
+	case "${UNAME_VERSION}" in
+	    Debian*)
+		release='-gnu'
+		;;
+	    *)
+		release=`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'`
+		;;
+	esac
+	# Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM:
+	# contains redundant information, the shorter form:
+	# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
+	echo "${machine}-${os}${release}"
+	exit ;;
+    *:Bitrig:*:*)
+	UNAME_MACHINE_ARCH=`arch | sed 's/Bitrig.//'`
+	echo ${UNAME_MACHINE_ARCH}-unknown-bitrig${UNAME_RELEASE}
+	exit ;;
+    *:OpenBSD:*:*)
+	UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'`
+	echo ${UNAME_MACHINE_ARCH}-unknown-openbsd${UNAME_RELEASE}
+	exit ;;
+    *:ekkoBSD:*:*)
+	echo ${UNAME_MACHINE}-unknown-ekkobsd${UNAME_RELEASE}
+	exit ;;
+    *:SolidBSD:*:*)
+	echo ${UNAME_MACHINE}-unknown-solidbsd${UNAME_RELEASE}
+	exit ;;
+    macppc:MirBSD:*:*)
+	echo powerpc-unknown-mirbsd${UNAME_RELEASE}
+	exit ;;
+    *:MirBSD:*:*)
+	echo ${UNAME_MACHINE}-unknown-mirbsd${UNAME_RELEASE}
+	exit ;;
+    alpha:OSF1:*:*)
+	case $UNAME_RELEASE in
+	*4.0)
+		UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'`
+		;;
+	*5.*)
+		UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'`
+		;;
+	esac
+	# According to Compaq, /usr/sbin/psrinfo has been available on
+	# OSF/1 and Tru64 systems produced since 1995.  I hope that
+	# covers most systems running today.  This code pipes the CPU
+	# types through head -n 1, so we only detect the type of CPU 0.
+	ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^  The alpha \(.*\) processor.*$/\1/p' | head -n 1`
+	case "$ALPHA_CPU_TYPE" in
+	    "EV4 (21064)")
+		UNAME_MACHINE="alpha" ;;
+	    "EV4.5 (21064)")
+		UNAME_MACHINE="alpha" ;;
+	    "LCA4 (21066/21068)")
+		UNAME_MACHINE="alpha" ;;
+	    "EV5 (21164)")
+		UNAME_MACHINE="alphaev5" ;;
+	    "EV5.6 (21164A)")
+		UNAME_MACHINE="alphaev56" ;;
+	    "EV5.6 (21164PC)")
+		UNAME_MACHINE="alphapca56" ;;
+	    "EV5.7 (21164PC)")
+		UNAME_MACHINE="alphapca57" ;;
+	    "EV6 (21264)")
+		UNAME_MACHINE="alphaev6" ;;
+	    "EV6.7 (21264A)")
+		UNAME_MACHINE="alphaev67" ;;
+	    "EV6.8CB (21264C)")
+		UNAME_MACHINE="alphaev68" ;;
+	    "EV6.8AL (21264B)")
+		UNAME_MACHINE="alphaev68" ;;
+	    "EV6.8CX (21264D)")
+		UNAME_MACHINE="alphaev68" ;;
+	    "EV6.9A (21264/EV69A)")
+		UNAME_MACHINE="alphaev69" ;;
+	    "EV7 (21364)")
+		UNAME_MACHINE="alphaev7" ;;
+	    "EV7.9 (21364A)")
+		UNAME_MACHINE="alphaev79" ;;
+	esac
+	# A Pn.n version is a patched version.
+	# A Vn.n version is a released version.
+	# A Tn.n version is a released field test version.
+	# A Xn.n version is an unreleased experimental baselevel.
+	# 1.2 uses "1.2" for uname -r.
+	echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[PVTX]//' | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
+	# Reset EXIT trap before exiting to avoid spurious non-zero exit code.
+	exitcode=$?
+	trap '' 0
+	exit $exitcode ;;
+    Alpha\ *:Windows_NT*:*)
+	# How do we know it's Interix rather than the generic POSIX subsystem?
+	# Should we change UNAME_MACHINE based on the output of uname instead
+	# of the specific Alpha model?
+	echo alpha-pc-interix
+	exit ;;
+    21064:Windows_NT:50:3)
+	echo alpha-dec-winnt3.5
+	exit ;;
+    Amiga*:UNIX_System_V:4.0:*)
+	echo m68k-unknown-sysv4
+	exit ;;
+    *:[Aa]miga[Oo][Ss]:*:*)
+	echo ${UNAME_MACHINE}-unknown-amigaos
+	exit ;;
+    *:[Mm]orph[Oo][Ss]:*:*)
+	echo ${UNAME_MACHINE}-unknown-morphos
+	exit ;;
+    *:OS/390:*:*)
+	echo i370-ibm-openedition
+	exit ;;
+    *:z/VM:*:*)
+	echo s390-ibm-zvmoe
+	exit ;;
+    *:OS400:*:*)
+	echo powerpc-ibm-os400
+	exit ;;
+    arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
+	echo arm-acorn-riscix${UNAME_RELEASE}
+	exit ;;
+    arm*:riscos:*:*|arm*:RISCOS:*:*)
+	echo arm-unknown-riscos
+	exit ;;
+    SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*)
+	echo hppa1.1-hitachi-hiuxmpp
+	exit ;;
+    Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*)
+	# akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE.
+	if test "`(/bin/universe) 2>/dev/null`" = att ; then
+		echo pyramid-pyramid-sysv3
+	else
+		echo pyramid-pyramid-bsd
+	fi
+	exit ;;
+    NILE*:*:*:dcosx)
+	echo pyramid-pyramid-svr4
+	exit ;;
+    DRS?6000:unix:4.0:6*)
+	echo sparc-icl-nx6
+	exit ;;
+    DRS?6000:UNIX_SV:4.2*:7* | DRS?6000:isis:4.2*:7*)
+	case `/usr/bin/uname -p` in
+	    sparc) echo sparc-icl-nx7; exit ;;
+	esac ;;
+    s390x:SunOS:*:*)
+	echo ${UNAME_MACHINE}-ibm-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit ;;
+    sun4H:SunOS:5.*:*)
+	echo sparc-hal-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit ;;
+    sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*)
+	echo sparc-sun-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit ;;
+    i86pc:AuroraUX:5.*:* | i86xen:AuroraUX:5.*:*)
+	echo i386-pc-auroraux${UNAME_RELEASE}
+	exit ;;
+    i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*)
+	eval $set_cc_for_build
+	SUN_ARCH="i386"
+	# If there is a compiler, see if it is configured for 64-bit objects.
+	# Note that the Sun cc does not turn __LP64__ into 1 like gcc does.
+	# This test works for both compilers.
+	if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then
+	    if (echo '#ifdef __amd64'; echo IS_64BIT_ARCH; echo '#endif') | \
+		(CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \
+		grep IS_64BIT_ARCH >/dev/null
+	    then
+		SUN_ARCH="x86_64"
+	    fi
+	fi
+	echo ${SUN_ARCH}-pc-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit ;;
+    sun4*:SunOS:6*:*)
+	# According to config.sub, this is the proper way to canonicalize
+	# SunOS6.  Hard to guess exactly what SunOS6 will be like, but
+	# it's likely to be more like Solaris than SunOS4.
+	echo sparc-sun-solaris3`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit ;;
+    sun4*:SunOS:*:*)
+	case "`/usr/bin/arch -k`" in
+	    Series*|S4*)
+		UNAME_RELEASE=`uname -v`
+		;;
+	esac
+	# Japanese Language versions have a version number like `4.1.3-JL'.
+	echo sparc-sun-sunos`echo ${UNAME_RELEASE}|sed -e 's/-/_/'`
+	exit ;;
+    sun3*:SunOS:*:*)
+	echo m68k-sun-sunos${UNAME_RELEASE}
+	exit ;;
+    sun*:*:4.2BSD:*)
+	UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null`
+	test "x${UNAME_RELEASE}" = "x" && UNAME_RELEASE=3
+	case "`/bin/arch`" in
+	    sun3)
+		echo m68k-sun-sunos${UNAME_RELEASE}
+		;;
+	    sun4)
+		echo sparc-sun-sunos${UNAME_RELEASE}
+		;;
+	esac
+	exit ;;
+    aushp:SunOS:*:*)
+	echo sparc-auspex-sunos${UNAME_RELEASE}
+	exit ;;
+    # The situation for MiNT is a little confusing.  The machine name
+    # can be virtually everything (everything which is not
+    # "atarist" or "atariste" at least should have a processor
+    # > m68000).  The system name ranges from "MiNT" over "FreeMiNT"
+    # to the lowercase version "mint" (or "freemint").  Finally
+    # the system name "TOS" denotes a system which is actually not
+    # MiNT.  But MiNT is downward compatible to TOS, so this should
+    # be no problem.
+    atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*)
+	echo m68k-atari-mint${UNAME_RELEASE}
+	exit ;;
+    atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*)
+	echo m68k-atari-mint${UNAME_RELEASE}
+	exit ;;
+    *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*)
+	echo m68k-atari-mint${UNAME_RELEASE}
+	exit ;;
+    milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*)
+	echo m68k-milan-mint${UNAME_RELEASE}
+	exit ;;
+    hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*)
+	echo m68k-hades-mint${UNAME_RELEASE}
+	exit ;;
+    *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*)
+	echo m68k-unknown-mint${UNAME_RELEASE}
+	exit ;;
+    m68k:machten:*:*)
+	echo m68k-apple-machten${UNAME_RELEASE}
+	exit ;;
+    powerpc:machten:*:*)
+	echo powerpc-apple-machten${UNAME_RELEASE}
+	exit ;;
+    RISC*:Mach:*:*)
+	echo mips-dec-mach_bsd4.3
+	exit ;;
+    RISC*:ULTRIX:*:*)
+	echo mips-dec-ultrix${UNAME_RELEASE}
+	exit ;;
+    VAX*:ULTRIX*:*:*)
+	echo vax-dec-ultrix${UNAME_RELEASE}
+	exit ;;
+    2020:CLIX:*:* | 2430:CLIX:*:*)
+	echo clipper-intergraph-clix${UNAME_RELEASE}
+	exit ;;
+    mips:*:*:UMIPS | mips:*:*:RISCos)
+	eval $set_cc_for_build
+	sed 's/^	//' << EOF >$dummy.c
+#ifdef __cplusplus
+#include <stdio.h>  /* for printf() prototype */
+	int main (int argc, char *argv[]) {
+#else
+	int main (argc, argv) int argc; char *argv[]; {
+#endif
+	#if defined (host_mips) && defined (MIPSEB)
+	#if defined (SYSTYPE_SYSV)
+	  printf ("mips-mips-riscos%ssysv\n", argv[1]); exit (0);
+	#endif
+	#if defined (SYSTYPE_SVR4)
+	  printf ("mips-mips-riscos%ssvr4\n", argv[1]); exit (0);
+	#endif
+	#if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD)
+	  printf ("mips-mips-riscos%sbsd\n", argv[1]); exit (0);
+	#endif
+	#endif
+	  exit (-1);
+	}
+EOF
+	$CC_FOR_BUILD -o $dummy $dummy.c &&
+	  dummyarg=`echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` &&
+	  SYSTEM_NAME=`$dummy $dummyarg` &&
+	    { echo "$SYSTEM_NAME"; exit; }
+	echo mips-mips-riscos${UNAME_RELEASE}
+	exit ;;
+    Motorola:PowerMAX_OS:*:*)
+	echo powerpc-motorola-powermax
+	exit ;;
+    Motorola:*:4.3:PL8-*)
+	echo powerpc-harris-powermax
+	exit ;;
+    Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*)
+	echo powerpc-harris-powermax
+	exit ;;
+    Night_Hawk:Power_UNIX:*:*)
+	echo powerpc-harris-powerunix
+	exit ;;
+    m88k:CX/UX:7*:*)
+	echo m88k-harris-cxux7
+	exit ;;
+    m88k:*:4*:R4*)
+	echo m88k-motorola-sysv4
+	exit ;;
+    m88k:*:3*:R3*)
+	echo m88k-motorola-sysv3
+	exit ;;
+    AViiON:dgux:*:*)
+	# DG/UX returns AViiON for all architectures
+	UNAME_PROCESSOR=`/usr/bin/uname -p`
+	if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ]
+	then
+	    if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \
+	       [ ${TARGET_BINARY_INTERFACE}x = x ]
+	    then
+		echo m88k-dg-dgux${UNAME_RELEASE}
+	    else
+		echo m88k-dg-dguxbcs${UNAME_RELEASE}
+	    fi
+	else
+	    echo i586-dg-dgux${UNAME_RELEASE}
+	fi
+	exit ;;
+    M88*:DolphinOS:*:*)	# DolphinOS (SVR3)
+	echo m88k-dolphin-sysv3
+	exit ;;
+    M88*:*:R3*:*)
+	# Delta 88k system running SVR3
+	echo m88k-motorola-sysv3
+	exit ;;
+    XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3)
+	echo m88k-tektronix-sysv3
+	exit ;;
+    Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD)
+	echo m68k-tektronix-bsd
+	exit ;;
+    *:IRIX*:*:*)
+	echo mips-sgi-irix`echo ${UNAME_RELEASE}|sed -e 's/-/_/g'`
+	exit ;;
+    ????????:AIX?:[12].1:2)   # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX.
+	echo romp-ibm-aix     # uname -m gives an 8 hex-code CPU id
+	exit ;;               # Note that: echo "'`uname -s`'" gives 'AIX '
+    i*86:AIX:*:*)
+	echo i386-ibm-aix
+	exit ;;
+    ia64:AIX:*:*)
+	if [ -x /usr/bin/oslevel ] ; then
+		IBM_REV=`/usr/bin/oslevel`
+	else
+		IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
+	fi
+	echo ${UNAME_MACHINE}-ibm-aix${IBM_REV}
+	exit ;;
+    *:AIX:2:3)
+	if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then
+		eval $set_cc_for_build
+		sed 's/^		//' << EOF >$dummy.c
+		#include <sys/systemcfg.h>
+
+		main()
+			{
+			if (!__power_pc())
+				exit(1);
+			puts("powerpc-ibm-aix3.2.5");
+			exit(0);
+			}
+EOF
+		if $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy`
+		then
+			echo "$SYSTEM_NAME"
+		else
+			echo rs6000-ibm-aix3.2.5
+		fi
+	elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then
+		echo rs6000-ibm-aix3.2.4
+	else
+		echo rs6000-ibm-aix3.2
+	fi
+	exit ;;
+    *:AIX:*:[4567])
+	IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'`
+	if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then
+		IBM_ARCH=rs6000
+	else
+		IBM_ARCH=powerpc
+	fi
+	if [ -x /usr/bin/oslevel ] ; then
+		IBM_REV=`/usr/bin/oslevel`
+	else
+		IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
+	fi
+	echo ${IBM_ARCH}-ibm-aix${IBM_REV}
+	exit ;;
+    *:AIX:*:*)
+	echo rs6000-ibm-aix
+	exit ;;
+    ibmrt:4.4BSD:*|romp-ibm:BSD:*)
+	echo romp-ibm-bsd4.4
+	exit ;;
+    ibmrt:*BSD:*|romp-ibm:BSD:*)            # covers RT/PC BSD and
+	echo romp-ibm-bsd${UNAME_RELEASE}   # 4.3 with uname added to
+	exit ;;                             # report: romp-ibm BSD 4.3
+    *:BOSX:*:*)
+	echo rs6000-bull-bosx
+	exit ;;
+    DPX/2?00:B.O.S.:*:*)
+	echo m68k-bull-sysv3
+	exit ;;
+    9000/[34]??:4.3bsd:1.*:*)
+	echo m68k-hp-bsd
+	exit ;;
+    hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*)
+	echo m68k-hp-bsd4.4
+	exit ;;
+    9000/[34678]??:HP-UX:*:*)
+	HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
+	case "${UNAME_MACHINE}" in
+	    9000/31? )            HP_ARCH=m68000 ;;
+	    9000/[34]?? )         HP_ARCH=m68k ;;
+	    9000/[678][0-9][0-9])
+		if [ -x /usr/bin/getconf ]; then
+		    sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null`
+		    sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
+		    case "${sc_cpu_version}" in
+		      523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0
+		      528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1
+		      532)                      # CPU_PA_RISC2_0
+			case "${sc_kernel_bits}" in
+			  32) HP_ARCH="hppa2.0n" ;;
+			  64) HP_ARCH="hppa2.0w" ;;
+			  '') HP_ARCH="hppa2.0" ;;   # HP-UX 10.20
+			esac ;;
+		    esac
+		fi
+		if [ "${HP_ARCH}" = "" ]; then
+		    eval $set_cc_for_build
+		    sed 's/^		//' << EOF >$dummy.c
+
+		#define _HPUX_SOURCE
+		#include <stdlib.h>
+		#include <unistd.h>
+
+		int main ()
+		{
+		#if defined(_SC_KERNEL_BITS)
+		    long bits = sysconf(_SC_KERNEL_BITS);
+		#endif
+		    long cpu  = sysconf (_SC_CPU_VERSION);
+
+		    switch (cpu)
+			{
+			case CPU_PA_RISC1_0: puts ("hppa1.0"); break;
+			case CPU_PA_RISC1_1: puts ("hppa1.1"); break;
+			case CPU_PA_RISC2_0:
+		#if defined(_SC_KERNEL_BITS)
+			    switch (bits)
+				{
+				case 64: puts ("hppa2.0w"); break;
+				case 32: puts ("hppa2.0n"); break;
+				default: puts ("hppa2.0"); break;
+				} break;
+		#else  /* !defined(_SC_KERNEL_BITS) */
+			    puts ("hppa2.0"); break;
+		#endif
+			default: puts ("hppa1.0"); break;
+			}
+		    exit (0);
+		}
+EOF
+		    (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy`
+		    test -z "$HP_ARCH" && HP_ARCH=hppa
+		fi ;;
+	esac
+	if [ ${HP_ARCH} = "hppa2.0w" ]
+	then
+	    eval $set_cc_for_build
+
+	    # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating
+	    # 32-bit code.  hppa64-hp-hpux* has the same kernel and a compiler
+	    # generating 64-bit code.  GNU and HP use different nomenclature:
+	    #
+	    # $ CC_FOR_BUILD=cc ./config.guess
+	    # => hppa2.0w-hp-hpux11.23
+	    # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess
+	    # => hppa64-hp-hpux11.23
+
+	    if echo __LP64__ | (CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) |
+		grep -q __LP64__
+	    then
+		HP_ARCH="hppa2.0w"
+	    else
+		HP_ARCH="hppa64"
+	    fi
+	fi
+	echo ${HP_ARCH}-hp-hpux${HPUX_REV}
+	exit ;;
+    ia64:HP-UX:*:*)
+	HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
+	echo ia64-hp-hpux${HPUX_REV}
+	exit ;;
+    3050*:HI-UX:*:*)
+	eval $set_cc_for_build
+	sed 's/^	//' << EOF >$dummy.c
+	#include <unistd.h>
+	int
+	main ()
+	{
+	  long cpu = sysconf (_SC_CPU_VERSION);
+	  /* The order matters, because CPU_IS_HP_MC68K erroneously returns
+	     true for CPU_PA_RISC1_0.  CPU_IS_PA_RISC returns correct
+	     results, however.  */
+	  if (CPU_IS_PA_RISC (cpu))
+	    {
+	      switch (cpu)
+		{
+		  case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break;
+		  case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break;
+		  case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break;
+		  default: puts ("hppa-hitachi-hiuxwe2"); break;
+		}
+	    }
+	  else if (CPU_IS_HP_MC68K (cpu))
+	    puts ("m68k-hitachi-hiuxwe2");
+	  else puts ("unknown-hitachi-hiuxwe2");
+	  exit (0);
+	}
+EOF
+	$CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` &&
+		{ echo "$SYSTEM_NAME"; exit; }
+	echo unknown-hitachi-hiuxwe2
+	exit ;;
+    9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* )
+	echo hppa1.1-hp-bsd
+	exit ;;
+    9000/8??:4.3bsd:*:*)
+	echo hppa1.0-hp-bsd
+	exit ;;
+    *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*)
+	echo hppa1.0-hp-mpeix
+	exit ;;
+    hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* )
+	echo hppa1.1-hp-osf
+	exit ;;
+    hp8??:OSF1:*:*)
+	echo hppa1.0-hp-osf
+	exit ;;
+    i*86:OSF1:*:*)
+	if [ -x /usr/sbin/sysversion ] ; then
+	    echo ${UNAME_MACHINE}-unknown-osf1mk
+	else
+	    echo ${UNAME_MACHINE}-unknown-osf1
+	fi
+	exit ;;
+    parisc*:Lites*:*:*)
+	echo hppa1.1-hp-lites
+	exit ;;
+    C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*)
+	echo c1-convex-bsd
+	exit ;;
+    C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*)
+	if getsysinfo -f scalar_acc
+	then echo c32-convex-bsd
+	else echo c2-convex-bsd
+	fi
+	exit ;;
+    C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*)
+	echo c34-convex-bsd
+	exit ;;
+    C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*)
+	echo c38-convex-bsd
+	exit ;;
+    C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*)
+	echo c4-convex-bsd
+	exit ;;
+    CRAY*Y-MP:*:*:*)
+	echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*[A-Z]90:*:*:*)
+	echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \
+	| sed -e 's/CRAY.*\([A-Z]90\)/\1/' \
+	      -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \
+	      -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*TS:*:*:*)
+	echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*T3E:*:*:*)
+	echo alphaev5-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*SV1:*:*:*)
+	echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    *:UNICOS/mp:*:*)
+	echo craynv-cray-unicosmp${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*)
+	FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
+	FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
+	FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'`
+	echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+	exit ;;
+    5000:UNIX_System_V:4.*:*)
+	FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
+	FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'`
+	echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+	exit ;;
+    i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*)
+	echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE}
+	exit ;;
+    sparc*:BSD/OS:*:*)
+	echo sparc-unknown-bsdi${UNAME_RELEASE}
+	exit ;;
+    *:BSD/OS:*:*)
+	echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE}
+	exit ;;
+    *:FreeBSD:*:*)
+	UNAME_PROCESSOR=`/usr/bin/uname -p`
+	case ${UNAME_PROCESSOR} in
+	    amd64)
+		echo x86_64-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
+	    *)
+		echo ${UNAME_PROCESSOR}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` ;;
+	esac
+	exit ;;
+    i*:CYGWIN*:*)
+	echo ${UNAME_MACHINE}-pc-cygwin
+	exit ;;
+    *:MINGW64*:*)
+	echo ${UNAME_MACHINE}-pc-mingw64
+	exit ;;
+    *:MINGW*:*)
+	echo ${UNAME_MACHINE}-pc-mingw32
+	exit ;;
+    i*:MSYS*:*)
+	echo ${UNAME_MACHINE}-pc-msys
+	exit ;;
+    i*:windows32*:*)
+	# uname -m includes "-pc" on this system.
+	echo ${UNAME_MACHINE}-mingw32
+	exit ;;
+    i*:PW*:*)
+	echo ${UNAME_MACHINE}-pc-pw32
+	exit ;;
+    *:Interix*:*)
+	case ${UNAME_MACHINE} in
+	    x86)
+		echo i586-pc-interix${UNAME_RELEASE}
+		exit ;;
+	    authenticamd | genuineintel | EM64T)
+		echo x86_64-unknown-interix${UNAME_RELEASE}
+		exit ;;
+	    IA64)
+		echo ia64-unknown-interix${UNAME_RELEASE}
+		exit ;;
+	esac ;;
+    [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*)
+	echo i${UNAME_MACHINE}-pc-mks
+	exit ;;
+    8664:Windows_NT:*)
+	echo x86_64-pc-mks
+	exit ;;
+    i*:Windows_NT*:* | Pentium*:Windows_NT*:*)
+	# How do we know it's Interix rather than the generic POSIX subsystem?
+	# It also conflicts with pre-2.0 versions of AT&T UWIN. Should we
+	# UNAME_MACHINE based on the output of uname instead of i386?
+	echo i586-pc-interix
+	exit ;;
+    i*:UWIN*:*)
+	echo ${UNAME_MACHINE}-pc-uwin
+	exit ;;
+    amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*)
+	echo x86_64-unknown-cygwin
+	exit ;;
+    p*:CYGWIN*:*)
+	echo powerpcle-unknown-cygwin
+	exit ;;
+    prep*:SunOS:5.*:*)
+	echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
+	exit ;;
+    *:GNU:*:*)
+	# the GNU system
+	echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-${LIBC}`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
+	exit ;;
+    *:GNU/*:*:*)
+	# other systems with GNU libc and userland
+	echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-${LIBC}
+	exit ;;
+    i*86:Minix:*:*)
+	echo ${UNAME_MACHINE}-pc-minix
+	exit ;;
+    aarch64:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    aarch64_be:Linux:*:*)
+	UNAME_MACHINE=aarch64_be
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    alpha:Linux:*:*)
+	case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
+	  EV5)   UNAME_MACHINE=alphaev5 ;;
+	  EV56)  UNAME_MACHINE=alphaev56 ;;
+	  PCA56) UNAME_MACHINE=alphapca56 ;;
+	  PCA57) UNAME_MACHINE=alphapca56 ;;
+	  EV6)   UNAME_MACHINE=alphaev6 ;;
+	  EV67)  UNAME_MACHINE=alphaev67 ;;
+	  EV68*) UNAME_MACHINE=alphaev68 ;;
+	esac
+	objdump --private-headers /bin/sh | grep -q ld.so.1
+	if test "$?" = 0 ; then LIBC="gnulibc1" ; fi
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    arc:Linux:*:* | arceb:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    arm*:Linux:*:*)
+	eval $set_cc_for_build
+	if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \
+	    | grep -q __ARM_EABI__
+	then
+	    echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	else
+	    if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \
+		| grep -q __ARM_PCS_VFP
+	    then
+		echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabi
+	    else
+		echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabihf
+	    fi
+	fi
+	exit ;;
+    avr32*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    cris:Linux:*:*)
+	echo ${UNAME_MACHINE}-axis-linux-${LIBC}
+	exit ;;
+    crisv32:Linux:*:*)
+	echo ${UNAME_MACHINE}-axis-linux-${LIBC}
+	exit ;;
+    frv:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    hexagon:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    i*86:Linux:*:*)
+	echo ${UNAME_MACHINE}-pc-linux-${LIBC}
+	exit ;;
+    ia64:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    m32r*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    m68*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    mips:Linux:*:* | mips64:Linux:*:*)
+	eval $set_cc_for_build
+	sed 's/^	//' << EOF >$dummy.c
+	#undef CPU
+	#undef ${UNAME_MACHINE}
+	#undef ${UNAME_MACHINE}el
+	#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
+	CPU=${UNAME_MACHINE}el
+	#else
+	#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
+	CPU=${UNAME_MACHINE}
+	#else
+	CPU=
+	#endif
+	#endif
+EOF
+	eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^CPU'`
+	test x"${CPU}" != x && { echo "${CPU}-unknown-linux-${LIBC}"; exit; }
+	;;
+    or1k:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    or32:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    padre:Linux:*:*)
+	echo sparc-unknown-linux-${LIBC}
+	exit ;;
+    parisc64:Linux:*:* | hppa64:Linux:*:*)
+	echo hppa64-unknown-linux-${LIBC}
+	exit ;;
+    parisc:Linux:*:* | hppa:Linux:*:*)
+	# Look for CPU level
+	case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
+	  PA7*) echo hppa1.1-unknown-linux-${LIBC} ;;
+	  PA8*) echo hppa2.0-unknown-linux-${LIBC} ;;
+	  *)    echo hppa-unknown-linux-${LIBC} ;;
+	esac
+	exit ;;
+    ppc64:Linux:*:*)
+	echo powerpc64-unknown-linux-${LIBC}
+	exit ;;
+    ppc:Linux:*:*)
+	echo powerpc-unknown-linux-${LIBC}
+	exit ;;
+    s390:Linux:*:* | s390x:Linux:*:*)
+	echo ${UNAME_MACHINE}-ibm-linux-${LIBC}
+	exit ;;
+    sh64*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    sh*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    sparc:Linux:*:* | sparc64:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    tile*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    vax:Linux:*:*)
+	echo ${UNAME_MACHINE}-dec-linux-${LIBC}
+	exit ;;
+    x86_64:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    xtensa*:Linux:*:*)
+	echo ${UNAME_MACHINE}-unknown-linux-${LIBC}
+	exit ;;
+    i*86:DYNIX/ptx:4*:*)
+	# ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
+	# earlier versions are messed up and put the nodename in both
+	# sysname and nodename.
+	echo i386-sequent-sysv4
+	exit ;;
+    i*86:UNIX_SV:4.2MP:2.*)
+	# Unixware is an offshoot of SVR4, but it has its own version
+	# number series starting with 2...
+	# I am not positive that other SVR4 systems won't match this,
+	# I just have to hope.  -- rms.
+	# Use sysv4.2uw... so that sysv4* matches it.
+	echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION}
+	exit ;;
+    i*86:OS/2:*:*)
+	# If we were able to find `uname', then EMX Unix compatibility
+	# is probably installed.
+	echo ${UNAME_MACHINE}-pc-os2-emx
+	exit ;;
+    i*86:XTS-300:*:STOP)
+	echo ${UNAME_MACHINE}-unknown-stop
+	exit ;;
+    i*86:atheos:*:*)
+	echo ${UNAME_MACHINE}-unknown-atheos
+	exit ;;
+    i*86:syllable:*:*)
+	echo ${UNAME_MACHINE}-pc-syllable
+	exit ;;
+    i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.[02]*:*)
+	echo i386-unknown-lynxos${UNAME_RELEASE}
+	exit ;;
+    i*86:*DOS:*:*)
+	echo ${UNAME_MACHINE}-pc-msdosdjgpp
+	exit ;;
+    i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*)
+	UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'`
+	if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then
+		echo ${UNAME_MACHINE}-univel-sysv${UNAME_REL}
+	else
+		echo ${UNAME_MACHINE}-pc-sysv${UNAME_REL}
+	fi
+	exit ;;
+    i*86:*:5:[678]*)
+	# UnixWare 7.x, OpenUNIX and OpenServer 6.
+	case `/bin/uname -X | grep "^Machine"` in
+	    *486*)	     UNAME_MACHINE=i486 ;;
+	    *Pentium)	     UNAME_MACHINE=i586 ;;
+	    *Pent*|*Celeron) UNAME_MACHINE=i686 ;;
+	esac
+	echo ${UNAME_MACHINE}-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}${UNAME_VERSION}
+	exit ;;
+    i*86:*:3.2:*)
+	if test -f /usr/options/cb.name; then
+		UNAME_REL=`sed -n 's/.*Version //p' </usr/options/cb.name`
+		echo ${UNAME_MACHINE}-pc-isc$UNAME_REL
+	elif /bin/uname -X 2>/dev/null >/dev/null ; then
+		UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')`
+		(/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486
+		(/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \
+			&& UNAME_MACHINE=i586
+		(/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \
+			&& UNAME_MACHINE=i686
+		(/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \
+			&& UNAME_MACHINE=i686
+		echo ${UNAME_MACHINE}-pc-sco$UNAME_REL
+	else
+		echo ${UNAME_MACHINE}-pc-sysv32
+	fi
+	exit ;;
+    pc:*:*:*)
+	# Left here for compatibility:
+	# uname -m prints for DJGPP always 'pc', but it prints nothing about
+	# the processor, so we play safe by assuming i586.
+	# Note: whatever this is, it MUST be the same as what config.sub
+	# prints for the "djgpp" host, or else GDB configury will decide that
+	# this is a cross-build.
+	echo i586-pc-msdosdjgpp
+	exit ;;
+    Intel:Mach:3*:*)
+	echo i386-pc-mach3
+	exit ;;
+    paragon:*:*:*)
+	echo i860-intel-osf1
+	exit ;;
+    i860:*:4.*:*) # i860-SVR4
+	if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then
+	  echo i860-stardent-sysv${UNAME_RELEASE} # Stardent Vistra i860-SVR4
+	else # Add other i860-SVR4 vendors below as they are discovered.
+	  echo i860-unknown-sysv${UNAME_RELEASE}  # Unknown i860-SVR4
+	fi
+	exit ;;
+    mini*:CTIX:SYS*5:*)
+	# "miniframe"
+	echo m68010-convergent-sysv
+	exit ;;
+    mc68k:UNIX:SYSTEM5:3.51m)
+	echo m68k-convergent-sysv
+	exit ;;
+    M680?0:D-NIX:5.3:*)
+	echo m68k-diab-dnix
+	exit ;;
+    M68*:*:R3V[5678]*:*)
+	test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;;
+    3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0)
+	OS_REL=''
+	test -r /etc/.relid \
+	&& OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
+	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+	  && { echo i486-ncr-sysv4.3${OS_REL}; exit; }
+	/bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
+	  && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;;
+    3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*)
+	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+	  && { echo i486-ncr-sysv4; exit; } ;;
+    NCR*:*:4.2:* | MPRAS*:*:4.2:*)
+	OS_REL='.3'
+	test -r /etc/.relid \
+	    && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
+	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+	    && { echo i486-ncr-sysv4.3${OS_REL}; exit; }
+	/bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
+	    && { echo i586-ncr-sysv4.3${OS_REL}; exit; }
+	/bin/uname -p 2>/dev/null | /bin/grep pteron >/dev/null \
+	    && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;;
+    m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*)
+	echo m68k-unknown-lynxos${UNAME_RELEASE}
+	exit ;;
+    mc68030:UNIX_System_V:4.*:*)
+	echo m68k-atari-sysv4
+	exit ;;
+    TSUNAMI:LynxOS:2.*:*)
+	echo sparc-unknown-lynxos${UNAME_RELEASE}
+	exit ;;
+    rs6000:LynxOS:2.*:*)
+	echo rs6000-unknown-lynxos${UNAME_RELEASE}
+	exit ;;
+    PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.[02]*:*)
+	echo powerpc-unknown-lynxos${UNAME_RELEASE}
+	exit ;;
+    SM[BE]S:UNIX_SV:*:*)
+	echo mips-dde-sysv${UNAME_RELEASE}
+	exit ;;
+    RM*:ReliantUNIX-*:*:*)
+	echo mips-sni-sysv4
+	exit ;;
+    RM*:SINIX-*:*:*)
+	echo mips-sni-sysv4
+	exit ;;
+    *:SINIX-*:*:*)
+	if uname -p 2>/dev/null >/dev/null ; then
+		UNAME_MACHINE=`(uname -p) 2>/dev/null`
+		echo ${UNAME_MACHINE}-sni-sysv4
+	else
+		echo ns32k-sni-sysv
+	fi
+	exit ;;
+    PENTIUM:*:4.0*:*)	# Unisys `ClearPath HMP IX 4000' SVR4/MP effort
+			# says <Richard.M.Bartel@ccMail.Census.GOV>
+	echo i586-unisys-sysv4
+	exit ;;
+    *:UNIX_System_V:4*:FTX*)
+	# From Gerald Hewes <hewes@openmarket.com>.
+	# How about differentiating between stratus architectures? -djm
+	echo hppa1.1-stratus-sysv4
+	exit ;;
+    *:*:*:FTX*)
+	# From seanf@swdc.stratus.com.
+	echo i860-stratus-sysv4
+	exit ;;
+    i*86:VOS:*:*)
+	# From Paul.Green@stratus.com.
+	echo ${UNAME_MACHINE}-stratus-vos
+	exit ;;
+    *:VOS:*:*)
+	# From Paul.Green@stratus.com.
+	echo hppa1.1-stratus-vos
+	exit ;;
+    mc68*:A/UX:*:*)
+	echo m68k-apple-aux${UNAME_RELEASE}
+	exit ;;
+    news*:NEWS-OS:6*:*)
+	echo mips-sony-newsos6
+	exit ;;
+    R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*)
+	if [ -d /usr/nec ]; then
+		echo mips-nec-sysv${UNAME_RELEASE}
+	else
+		echo mips-unknown-sysv${UNAME_RELEASE}
+	fi
+	exit ;;
+    BeBox:BeOS:*:*)	# BeOS running on hardware made by Be, PPC only.
+	echo powerpc-be-beos
+	exit ;;
+    BeMac:BeOS:*:*)	# BeOS running on Mac or Mac clone, PPC only.
+	echo powerpc-apple-beos
+	exit ;;
+    BePC:BeOS:*:*)	# BeOS running on Intel PC compatible.
+	echo i586-pc-beos
+	exit ;;
+    BePC:Haiku:*:*)	# Haiku running on Intel PC compatible.
+	echo i586-pc-haiku
+	exit ;;
+    x86_64:Haiku:*:*)
+	echo x86_64-unknown-haiku
+	exit ;;
+    SX-4:SUPER-UX:*:*)
+	echo sx4-nec-superux${UNAME_RELEASE}
+	exit ;;
+    SX-5:SUPER-UX:*:*)
+	echo sx5-nec-superux${UNAME_RELEASE}
+	exit ;;
+    SX-6:SUPER-UX:*:*)
+	echo sx6-nec-superux${UNAME_RELEASE}
+	exit ;;
+    SX-7:SUPER-UX:*:*)
+	echo sx7-nec-superux${UNAME_RELEASE}
+	exit ;;
+    SX-8:SUPER-UX:*:*)
+	echo sx8-nec-superux${UNAME_RELEASE}
+	exit ;;
+    SX-8R:SUPER-UX:*:*)
+	echo sx8r-nec-superux${UNAME_RELEASE}
+	exit ;;
+    Power*:Rhapsody:*:*)
+	echo powerpc-apple-rhapsody${UNAME_RELEASE}
+	exit ;;
+    *:Rhapsody:*:*)
+	echo ${UNAME_MACHINE}-apple-rhapsody${UNAME_RELEASE}
+	exit ;;
+    *:Darwin:*:*)
+	UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown
+	eval $set_cc_for_build
+	if test "$UNAME_PROCESSOR" = unknown ; then
+	    UNAME_PROCESSOR=powerpc
+	fi
+	if [ "$CC_FOR_BUILD" != 'no_compiler_found' ]; then
+	    if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \
+		(CCOPTS= $CC_FOR_BUILD -E - 2>/dev/null) | \
+		grep IS_64BIT_ARCH >/dev/null
+	    then
+		case $UNAME_PROCESSOR in
+		    i386) UNAME_PROCESSOR=x86_64 ;;
+		    powerpc) UNAME_PROCESSOR=powerpc64 ;;
+		esac
+	    fi
+	fi
+	echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE}
+	exit ;;
+    *:procnto*:*:* | *:QNX:[0123456789]*:*)
+	UNAME_PROCESSOR=`uname -p`
+	if test "$UNAME_PROCESSOR" = "x86"; then
+		UNAME_PROCESSOR=i386
+		UNAME_MACHINE=pc
+	fi
+	echo ${UNAME_PROCESSOR}-${UNAME_MACHINE}-nto-qnx${UNAME_RELEASE}
+	exit ;;
+    *:QNX:*:4*)
+	echo i386-pc-qnx
+	exit ;;
+    NEO-?:NONSTOP_KERNEL:*:*)
+	echo neo-tandem-nsk${UNAME_RELEASE}
+	exit ;;
+    NSE-*:NONSTOP_KERNEL:*:*)
+	echo nse-tandem-nsk${UNAME_RELEASE}
+	exit ;;
+    NSR-?:NONSTOP_KERNEL:*:*)
+	echo nsr-tandem-nsk${UNAME_RELEASE}
+	exit ;;
+    *:NonStop-UX:*:*)
+	echo mips-compaq-nonstopux
+	exit ;;
+    BS2000:POSIX*:*:*)
+	echo bs2000-siemens-sysv
+	exit ;;
+    DS/*:UNIX_System_V:*:*)
+	echo ${UNAME_MACHINE}-${UNAME_SYSTEM}-${UNAME_RELEASE}
+	exit ;;
+    *:Plan9:*:*)
+	# "uname -m" is not consistent, so use $cputype instead. 386
+	# is converted to i386 for consistency with other x86
+	# operating systems.
+	if test "$cputype" = "386"; then
+	    UNAME_MACHINE=i386
+	else
+	    UNAME_MACHINE="$cputype"
+	fi
+	echo ${UNAME_MACHINE}-unknown-plan9
+	exit ;;
+    *:TOPS-10:*:*)
+	echo pdp10-unknown-tops10
+	exit ;;
+    *:TENEX:*:*)
+	echo pdp10-unknown-tenex
+	exit ;;
+    KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*)
+	echo pdp10-dec-tops20
+	exit ;;
+    XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*)
+	echo pdp10-xkl-tops20
+	exit ;;
+    *:TOPS-20:*:*)
+	echo pdp10-unknown-tops20
+	exit ;;
+    *:ITS:*:*)
+	echo pdp10-unknown-its
+	exit ;;
+    SEI:*:*:SEIUX)
+	echo mips-sei-seiux${UNAME_RELEASE}
+	exit ;;
+    *:DragonFly:*:*)
+	echo ${UNAME_MACHINE}-unknown-dragonfly`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`
+	exit ;;
+    *:*VMS:*:*)
+	UNAME_MACHINE=`(uname -p) 2>/dev/null`
+	case "${UNAME_MACHINE}" in
+	    A*) echo alpha-dec-vms ; exit ;;
+	    I*) echo ia64-dec-vms ; exit ;;
+	    V*) echo vax-dec-vms ; exit ;;
+	esac ;;
+    *:XENIX:*:SysV)
+	echo i386-pc-xenix
+	exit ;;
+    i*86:skyos:*:*)
+	echo ${UNAME_MACHINE}-pc-skyos`echo ${UNAME_RELEASE}` | sed -e 's/ .*$//'
+	exit ;;
+    i*86:rdos:*:*)
+	echo ${UNAME_MACHINE}-pc-rdos
+	exit ;;
+    i*86:AROS:*:*)
+	echo ${UNAME_MACHINE}-pc-aros
+	exit ;;
+    x86_64:VMkernel:*:*)
+	echo ${UNAME_MACHINE}-unknown-esx
+	exit ;;
+esac
+
+eval $set_cc_for_build
+cat >$dummy.c <<EOF
+#ifdef _SEQUENT_
+# include <sys/types.h>
+# include <sys/utsname.h>
+#endif
+main ()
+{
+#if defined (sony)
+#if defined (MIPSEB)
+  /* BFD wants "bsd" instead of "newsos".  Perhaps BFD should be changed,
+     I don't know....  */
+  printf ("mips-sony-bsd\n"); exit (0);
+#else
+#include <sys/param.h>
+  printf ("m68k-sony-newsos%s\n",
+#ifdef NEWSOS4
+	"4"
+#else
+	""
+#endif
+	); exit (0);
+#endif
+#endif
+
+#if defined (__arm) && defined (__acorn) && defined (__unix)
+  printf ("arm-acorn-riscix\n"); exit (0);
+#endif
+
+#if defined (hp300) && !defined (hpux)
+  printf ("m68k-hp-bsd\n"); exit (0);
+#endif
+
+#if defined (NeXT)
+#if !defined (__ARCHITECTURE__)
+#define __ARCHITECTURE__ "m68k"
+#endif
+  int version;
+  version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`;
+  if (version < 4)
+    printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version);
+  else
+    printf ("%s-next-openstep%d\n", __ARCHITECTURE__, version);
+  exit (0);
+#endif
+
+#if defined (MULTIMAX) || defined (n16)
+#if defined (UMAXV)
+  printf ("ns32k-encore-sysv\n"); exit (0);
+#else
+#if defined (CMU)
+  printf ("ns32k-encore-mach\n"); exit (0);
+#else
+  printf ("ns32k-encore-bsd\n"); exit (0);
+#endif
+#endif
+#endif
+
+#if defined (__386BSD__)
+  printf ("i386-pc-bsd\n"); exit (0);
+#endif
+
+#if defined (sequent)
+#if defined (i386)
+  printf ("i386-sequent-dynix\n"); exit (0);
+#endif
+#if defined (ns32000)
+  printf ("ns32k-sequent-dynix\n"); exit (0);
+#endif
+#endif
+
+#if defined (_SEQUENT_)
+    struct utsname un;
+
+    uname(&un);
+
+    if (strncmp(un.version, "V2", 2) == 0) {
+	printf ("i386-sequent-ptx2\n"); exit (0);
+    }
+    if (strncmp(un.version, "V1", 2) == 0) { /* XXX is V1 correct? */
+	printf ("i386-sequent-ptx1\n"); exit (0);
+    }
+    printf ("i386-sequent-ptx\n"); exit (0);
+
+#endif
+
+#if defined (vax)
+# if !defined (ultrix)
+#  include <sys/param.h>
+#  if defined (BSD)
+#   if BSD == 43
+      printf ("vax-dec-bsd4.3\n"); exit (0);
+#   else
+#    if BSD == 199006
+      printf ("vax-dec-bsd4.3reno\n"); exit (0);
+#    else
+      printf ("vax-dec-bsd\n"); exit (0);
+#    endif
+#   endif
+#  else
+    printf ("vax-dec-bsd\n"); exit (0);
+#  endif
+# else
+    printf ("vax-dec-ultrix\n"); exit (0);
+# endif
+#endif
+
+#if defined (alliant) && defined (i860)
+  printf ("i860-alliant-bsd\n"); exit (0);
+#endif
+
+  exit (1);
+}
+EOF
+
+$CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null && SYSTEM_NAME=`$dummy` &&
+	{ echo "$SYSTEM_NAME"; exit; }
+
+# Apollos put the system type in the environment.
+
+test -d /usr/apollo && { echo ${ISP}-apollo-${SYSTYPE}; exit; }
+
+# Convex versions that predate uname can use getsysinfo(1)
+
+if [ -x /usr/convex/getsysinfo ]
+then
+    case `getsysinfo -f cpu_type` in
+    c1*)
+	echo c1-convex-bsd
+	exit ;;
+    c2*)
+	if getsysinfo -f scalar_acc
+	then echo c32-convex-bsd
+	else echo c2-convex-bsd
+	fi
+	exit ;;
+    c34*)
+	echo c34-convex-bsd
+	exit ;;
+    c38*)
+	echo c38-convex-bsd
+	exit ;;
+    c4*)
+	echo c4-convex-bsd
+	exit ;;
+    esac
+fi
+
+cat >&2 <<EOF
+$0: unable to guess system type
+
+This script, last modified $timestamp, has failed to recognize
+the operating system you are using. It is advised that you
+download the most up to date version of the config scripts from
+
+  http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD
+and
+  http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD
+
+If the version you run ($0) is already up to date, please
+send the following data and any information you think might be
+pertinent to <config-patches@gnu.org> in order to provide the needed
+information to handle your system.
+
+config.guess timestamp = $timestamp
+
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null`
+/bin/uname -X     = `(/bin/uname -X) 2>/dev/null`
+
+hostinfo               = `(hostinfo) 2>/dev/null`
+/bin/universe          = `(/bin/universe) 2>/dev/null`
+/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null`
+/bin/arch              = `(/bin/arch) 2>/dev/null`
+/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null`
+
+UNAME_MACHINE = ${UNAME_MACHINE}
+UNAME_RELEASE = ${UNAME_RELEASE}
+UNAME_SYSTEM  = ${UNAME_SYSTEM}
+UNAME_VERSION = ${UNAME_VERSION}
+EOF
+
+exit 1
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "timestamp='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
diff --git a/proto/presentproto/config.sub b/proto/presentproto/config.sub
new file mode 100644
index 000000000..8b612ab89
--- /dev/null
+++ b/proto/presentproto/config.sub
@@ -0,0 +1,1788 @@
+#! /bin/sh
+# Configuration validation subroutine script.
+#   Copyright 1992-2013 Free Software Foundation, Inc.
+
+timestamp='2013-04-24'
+
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <http://www.gnu.org/licenses/>.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that
+# program.  This Exception is an additional permission under section 7
+# of the GNU General Public License, version 3 ("GPLv3").
+
+
+# Please send patches with a ChangeLog entry to config-patches@gnu.org.
+#
+# Configuration subroutine to validate and canonicalize a configuration type.
+# Supply the specified configuration type as an argument.
+# If it is invalid, we print an error message on stderr and exit with code 1.
+# Otherwise, we print the canonical config type on stdout and succeed.
+
+# You can get the latest version of this script from:
+# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD
+
+# This file is supposed to be the same for all GNU packages
+# and recognize all the CPU types, system types and aliases
+# that are meaningful with *any* GNU software.
+# Each package is responsible for reporting which valid configurations
+# it does not support.  The user should be able to distinguish
+# a failure to support a valid configuration from a meaningless
+# configuration.
+
+# The goal of this file is to map all the various variations of a given
+# machine specification into a single specification in the form:
+#	CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
+# or in some cases, the newer four-part form:
+#	CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
+# It is wrong to echo any other type of specification.
+
+me=`echo "$0" | sed -e 's,.*/,,'`
+
+usage="\
+Usage: $0 [OPTION] CPU-MFR-OPSYS
+       $0 [OPTION] ALIAS
+
+Canonicalize a configuration name.
+
+Operation modes:
+  -h, --help         print this help, then exit
+  -t, --time-stamp   print date of last modification, then exit
+  -v, --version      print version number, then exit
+
+Report bugs and patches to <config-patches@gnu.org>."
+
+version="\
+GNU config.sub ($timestamp)
+
+Copyright 1992-2013 Free Software Foundation, Inc.
+
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+  case $1 in
+    --time-stamp | --time* | -t )
+       echo "$timestamp" ; exit ;;
+    --version | -v )
+       echo "$version" ; exit ;;
+    --help | --h* | -h )
+       echo "$usage"; exit ;;
+    -- )     # Stop option processing
+       shift; break ;;
+    - )	# Use stdin as input.
+       break ;;
+    -* )
+       echo "$me: invalid option $1$help"
+       exit 1 ;;
+
+    *local*)
+       # First pass through any local machine types.
+       echo $1
+       exit ;;
+
+    * )
+       break ;;
+  esac
+done
+
+case $# in
+ 0) echo "$me: missing argument$help" >&2
+    exit 1;;
+ 1) ;;
+ *) echo "$me: too many arguments$help" >&2
+    exit 1;;
+esac
+
+# Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any).
+# Here we must recognize all the valid KERNEL-OS combinations.
+maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
+case $maybe_os in
+  nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
+  linux-musl* | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
+  knetbsd*-gnu* | netbsd*-gnu* | \
+  kopensolaris*-gnu* | \
+  storm-chaos* | os2-emx* | rtmk-nova*)
+    os=-$maybe_os
+    basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
+    ;;
+  android-linux)
+    os=-linux-android
+    basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`-unknown
+    ;;
+  *)
+    basic_machine=`echo $1 | sed 's/-[^-]*$//'`
+    if [ $basic_machine != $1 ]
+    then os=`echo $1 | sed 's/.*-/-/'`
+    else os=; fi
+    ;;
+esac
+
+### Let's recognize common machines as not being operating systems so
+### that things like config.sub decstation-3100 work.  We also
+### recognize some manufacturers as not being operating systems, so we
+### can provide default operating systems below.
+case $os in
+	-sun*os*)
+		# Prevent following clause from handling this invalid input.
+		;;
+	-dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \
+	-att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \
+	-unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \
+	-convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
+	-c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
+	-harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
+	-apple | -axis | -knuth | -cray | -microblaze*)
+		os=
+		basic_machine=$1
+		;;
+	-bluegene*)
+		os=-cnk
+		;;
+	-sim | -cisco | -oki | -wec | -winbond)
+		os=
+		basic_machine=$1
+		;;
+	-scout)
+		;;
+	-wrs)
+		os=-vxworks
+		basic_machine=$1
+		;;
+	-chorusos*)
+		os=-chorusos
+		basic_machine=$1
+		;;
+	-chorusrdb)
+		os=-chorusrdb
+		basic_machine=$1
+		;;
+	-hiux*)
+		os=-hiuxwe2
+		;;
+	-sco6)
+		os=-sco5v6
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco5)
+		os=-sco3.2v5
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco4)
+		os=-sco3.2v4
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco3.2.[4-9]*)
+		os=`echo $os | sed -e 's/sco3.2./sco3.2v/'`
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco3.2v[4-9]*)
+		# Don't forget version if it is 3.2v4 or newer.
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco5v6*)
+		# Don't forget version if it is 3.2v4 or newer.
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-sco*)
+		os=-sco3.2v2
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-udk*)
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-isc)
+		os=-isc2.2
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-clix*)
+		basic_machine=clipper-intergraph
+		;;
+	-isc*)
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
+		;;
+	-lynx*178)
+		os=-lynxos178
+		;;
+	-lynx*5)
+		os=-lynxos5
+		;;
+	-lynx*)
+		os=-lynxos
+		;;
+	-ptx*)
+		basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'`
+		;;
+	-windowsnt*)
+		os=`echo $os | sed -e 's/windowsnt/winnt/'`
+		;;
+	-psos*)
+		os=-psos
+		;;
+	-mint | -mint[0-9]*)
+		basic_machine=m68k-atari
+		os=-mint
+		;;
+esac
+
+# Decode aliases for certain CPU-COMPANY combinations.
+case $basic_machine in
+	# Recognize the basic CPU types without company name.
+	# Some are omitted here because they have special meanings below.
+	1750a | 580 \
+	| a29k \
+	| aarch64 | aarch64_be \
+	| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \
+	| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
+	| am33_2.0 \
+	| arc | arceb \
+	| arm | arm[bl]e | arme[lb] | armv[2-8] | armv[3-8][lb] | armv7[arm] \
+	| avr | avr32 \
+	| be32 | be64 \
+	| bfin \
+	| c4x | clipper \
+	| d10v | d30v | dlx | dsp16xx \
+	| epiphany \
+	| fido | fr30 | frv \
+	| h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
+	| hexagon \
+	| i370 | i860 | i960 | ia64 \
+	| ip2k | iq2000 \
+	| le32 | le64 \
+	| lm32 \
+	| m32c | m32r | m32rle | m68000 | m68k | m88k \
+	| maxq | mb | microblaze | microblazeel | mcore | mep | metag \
+	| mips | mipsbe | mipseb | mipsel | mipsle \
+	| mips16 \
+	| mips64 | mips64el \
+	| mips64octeon | mips64octeonel \
+	| mips64orion | mips64orionel \
+	| mips64r5900 | mips64r5900el \
+	| mips64vr | mips64vrel \
+	| mips64vr4100 | mips64vr4100el \
+	| mips64vr4300 | mips64vr4300el \
+	| mips64vr5000 | mips64vr5000el \
+	| mips64vr5900 | mips64vr5900el \
+	| mipsisa32 | mipsisa32el \
+	| mipsisa32r2 | mipsisa32r2el \
+	| mipsisa64 | mipsisa64el \
+	| mipsisa64r2 | mipsisa64r2el \
+	| mipsisa64sb1 | mipsisa64sb1el \
+	| mipsisa64sr71k | mipsisa64sr71kel \
+	| mipsr5900 | mipsr5900el \
+	| mipstx39 | mipstx39el \
+	| mn10200 | mn10300 \
+	| moxie \
+	| mt \
+	| msp430 \
+	| nds32 | nds32le | nds32be \
+	| nios | nios2 | nios2eb | nios2el \
+	| ns16k | ns32k \
+	| open8 \
+	| or1k | or32 \
+	| pdp10 | pdp11 | pj | pjl \
+	| powerpc | powerpc64 | powerpc64le | powerpcle \
+	| pyramid \
+	| rl78 | rx \
+	| score \
+	| sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
+	| sh64 | sh64le \
+	| sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \
+	| sparcv8 | sparcv9 | sparcv9b | sparcv9v \
+	| spu \
+	| tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \
+	| ubicom32 \
+	| v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \
+	| we32k \
+	| x86 | xc16x | xstormy16 | xtensa \
+	| z8k | z80)
+		basic_machine=$basic_machine-unknown
+		;;
+	c54x)
+		basic_machine=tic54x-unknown
+		;;
+	c55x)
+		basic_machine=tic55x-unknown
+		;;
+	c6x)
+		basic_machine=tic6x-unknown
+		;;
+	m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | picochip)
+		basic_machine=$basic_machine-unknown
+		os=-none
+		;;
+	m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65 | z8k)
+		;;
+	ms1)
+		basic_machine=mt-unknown
+		;;
+
+	strongarm | thumb | xscale)
+		basic_machine=arm-unknown
+		;;
+	xgate)
+		basic_machine=$basic_machine-unknown
+		os=-none
+		;;
+	xscaleeb)
+		basic_machine=armeb-unknown
+		;;
+
+	xscaleel)
+		basic_machine=armel-unknown
+		;;
+
+	# We use `pc' rather than `unknown'
+	# because (1) that's what they normally are, and
+	# (2) the word "unknown" tends to confuse beginning users.
+	i*86 | x86_64)
+	  basic_machine=$basic_machine-pc
+	  ;;
+	# Object if more than one company name word.
+	*-*-*)
+		echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
+		exit 1
+		;;
+	# Recognize the basic CPU types with company name.
+	580-* \
+	| a29k-* \
+	| aarch64-* | aarch64_be-* \
+	| alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \
+	| alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \
+	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* | arceb-* \
+	| arm-*  | armbe-* | armle-* | armeb-* | armv*-* \
+	| avr-* | avr32-* \
+	| be32-* | be64-* \
+	| bfin-* | bs2000-* \
+	| c[123]* | c30-* | [cjt]90-* | c4x-* \
+	| clipper-* | craynv-* | cydra-* \
+	| d10v-* | d30v-* | dlx-* \
+	| elxsi-* \
+	| f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \
+	| h8300-* | h8500-* \
+	| hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
+	| hexagon-* \
+	| i*86-* | i860-* | i960-* | ia64-* \
+	| ip2k-* | iq2000-* \
+	| le32-* | le64-* \
+	| lm32-* \
+	| m32c-* | m32r-* | m32rle-* \
+	| m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \
+	| m88110-* | m88k-* | maxq-* | mcore-* | metag-* \
+	| microblaze-* | microblazeel-* \
+	| mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \
+	| mips16-* \
+	| mips64-* | mips64el-* \
+	| mips64octeon-* | mips64octeonel-* \
+	| mips64orion-* | mips64orionel-* \
+	| mips64r5900-* | mips64r5900el-* \
+	| mips64vr-* | mips64vrel-* \
+	| mips64vr4100-* | mips64vr4100el-* \
+	| mips64vr4300-* | mips64vr4300el-* \
+	| mips64vr5000-* | mips64vr5000el-* \
+	| mips64vr5900-* | mips64vr5900el-* \
+	| mipsisa32-* | mipsisa32el-* \
+	| mipsisa32r2-* | mipsisa32r2el-* \
+	| mipsisa64-* | mipsisa64el-* \
+	| mipsisa64r2-* | mipsisa64r2el-* \
+	| mipsisa64sb1-* | mipsisa64sb1el-* \
+	| mipsisa64sr71k-* | mipsisa64sr71kel-* \
+	| mipsr5900-* | mipsr5900el-* \
+	| mipstx39-* | mipstx39el-* \
+	| mmix-* \
+	| mt-* \
+	| msp430-* \
+	| nds32-* | nds32le-* | nds32be-* \
+	| nios-* | nios2-* | nios2eb-* | nios2el-* \
+	| none-* | np1-* | ns16k-* | ns32k-* \
+	| open8-* \
+	| orion-* \
+	| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
+	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \
+	| pyramid-* \
+	| rl78-* | romp-* | rs6000-* | rx-* \
+	| sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \
+	| shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \
+	| sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \
+	| sparclite-* \
+	| sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx?-* \
+	| tahoe-* \
+	| tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \
+	| tile*-* \
+	| tron-* \
+	| ubicom32-* \
+	| v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \
+	| vax-* \
+	| we32k-* \
+	| x86-* | x86_64-* | xc16x-* | xps100-* \
+	| xstormy16-* | xtensa*-* \
+	| ymp-* \
+	| z8k-* | z80-*)
+		;;
+	# Recognize the basic CPU types without company name, with glob match.
+	xtensa*)
+		basic_machine=$basic_machine-unknown
+		;;
+	# Recognize the various machine names and aliases which stand
+	# for a CPU type and a company and sometimes even an OS.
+	386bsd)
+		basic_machine=i386-unknown
+		os=-bsd
+		;;
+	3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
+		basic_machine=m68000-att
+		;;
+	3b*)
+		basic_machine=we32k-att
+		;;
+	a29khif)
+		basic_machine=a29k-amd
+		os=-udi
+		;;
+	abacus)
+		basic_machine=abacus-unknown
+		;;
+	adobe68k)
+		basic_machine=m68010-adobe
+		os=-scout
+		;;
+	alliant | fx80)
+		basic_machine=fx80-alliant
+		;;
+	altos | altos3068)
+		basic_machine=m68k-altos
+		;;
+	am29k)
+		basic_machine=a29k-none
+		os=-bsd
+		;;
+	amd64)
+		basic_machine=x86_64-pc
+		;;
+	amd64-*)
+		basic_machine=x86_64-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	amdahl)
+		basic_machine=580-amdahl
+		os=-sysv
+		;;
+	amiga | amiga-*)
+		basic_machine=m68k-unknown
+		;;
+	amigaos | amigados)
+		basic_machine=m68k-unknown
+		os=-amigaos
+		;;
+	amigaunix | amix)
+		basic_machine=m68k-unknown
+		os=-sysv4
+		;;
+	apollo68)
+		basic_machine=m68k-apollo
+		os=-sysv
+		;;
+	apollo68bsd)
+		basic_machine=m68k-apollo
+		os=-bsd
+		;;
+	aros)
+		basic_machine=i386-pc
+		os=-aros
+		;;
+	aux)
+		basic_machine=m68k-apple
+		os=-aux
+		;;
+	balance)
+		basic_machine=ns32k-sequent
+		os=-dynix
+		;;
+	blackfin)
+		basic_machine=bfin-unknown
+		os=-linux
+		;;
+	blackfin-*)
+		basic_machine=bfin-`echo $basic_machine | sed 's/^[^-]*-//'`
+		os=-linux
+		;;
+	bluegene*)
+		basic_machine=powerpc-ibm
+		os=-cnk
+		;;
+	c54x-*)
+		basic_machine=tic54x-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	c55x-*)
+		basic_machine=tic55x-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	c6x-*)
+		basic_machine=tic6x-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	c90)
+		basic_machine=c90-cray
+		os=-unicos
+		;;
+	cegcc)
+		basic_machine=arm-unknown
+		os=-cegcc
+		;;
+	convex-c1)
+		basic_machine=c1-convex
+		os=-bsd
+		;;
+	convex-c2)
+		basic_machine=c2-convex
+		os=-bsd
+		;;
+	convex-c32)
+		basic_machine=c32-convex
+		os=-bsd
+		;;
+	convex-c34)
+		basic_machine=c34-convex
+		os=-bsd
+		;;
+	convex-c38)
+		basic_machine=c38-convex
+		os=-bsd
+		;;
+	cray | j90)
+		basic_machine=j90-cray
+		os=-unicos
+		;;
+	craynv)
+		basic_machine=craynv-cray
+		os=-unicosmp
+		;;
+	cr16 | cr16-*)
+		basic_machine=cr16-unknown
+		os=-elf
+		;;
+	crds | unos)
+		basic_machine=m68k-crds
+		;;
+	crisv32 | crisv32-* | etraxfs*)
+		basic_machine=crisv32-axis
+		;;
+	cris | cris-* | etrax*)
+		basic_machine=cris-axis
+		;;
+	crx)
+		basic_machine=crx-unknown
+		os=-elf
+		;;
+	da30 | da30-*)
+		basic_machine=m68k-da30
+		;;
+	decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn)
+		basic_machine=mips-dec
+		;;
+	decsystem10* | dec10*)
+		basic_machine=pdp10-dec
+		os=-tops10
+		;;
+	decsystem20* | dec20*)
+		basic_machine=pdp10-dec
+		os=-tops20
+		;;
+	delta | 3300 | motorola-3300 | motorola-delta \
+	      | 3300-motorola | delta-motorola)
+		basic_machine=m68k-motorola
+		;;
+	delta88)
+		basic_machine=m88k-motorola
+		os=-sysv3
+		;;
+	dicos)
+		basic_machine=i686-pc
+		os=-dicos
+		;;
+	djgpp)
+		basic_machine=i586-pc
+		os=-msdosdjgpp
+		;;
+	dpx20 | dpx20-*)
+		basic_machine=rs6000-bull
+		os=-bosx
+		;;
+	dpx2* | dpx2*-bull)
+		basic_machine=m68k-bull
+		os=-sysv3
+		;;
+	ebmon29k)
+		basic_machine=a29k-amd
+		os=-ebmon
+		;;
+	elxsi)
+		basic_machine=elxsi-elxsi
+		os=-bsd
+		;;
+	encore | umax | mmax)
+		basic_machine=ns32k-encore
+		;;
+	es1800 | OSE68k | ose68k | ose | OSE)
+		basic_machine=m68k-ericsson
+		os=-ose
+		;;
+	fx2800)
+		basic_machine=i860-alliant
+		;;
+	genix)
+		basic_machine=ns32k-ns
+		;;
+	gmicro)
+		basic_machine=tron-gmicro
+		os=-sysv
+		;;
+	go32)
+		basic_machine=i386-pc
+		os=-go32
+		;;
+	h3050r* | hiux*)
+		basic_machine=hppa1.1-hitachi
+		os=-hiuxwe2
+		;;
+	h8300hms)
+		basic_machine=h8300-hitachi
+		os=-hms
+		;;
+	h8300xray)
+		basic_machine=h8300-hitachi
+		os=-xray
+		;;
+	h8500hms)
+		basic_machine=h8500-hitachi
+		os=-hms
+		;;
+	harris)
+		basic_machine=m88k-harris
+		os=-sysv3
+		;;
+	hp300-*)
+		basic_machine=m68k-hp
+		;;
+	hp300bsd)
+		basic_machine=m68k-hp
+		os=-bsd
+		;;
+	hp300hpux)
+		basic_machine=m68k-hp
+		os=-hpux
+		;;
+	hp3k9[0-9][0-9] | hp9[0-9][0-9])
+		basic_machine=hppa1.0-hp
+		;;
+	hp9k2[0-9][0-9] | hp9k31[0-9])
+		basic_machine=m68000-hp
+		;;
+	hp9k3[2-9][0-9])
+		basic_machine=m68k-hp
+		;;
+	hp9k6[0-9][0-9] | hp6[0-9][0-9])
+		basic_machine=hppa1.0-hp
+		;;
+	hp9k7[0-79][0-9] | hp7[0-79][0-9])
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k78[0-9] | hp78[0-9])
+		# FIXME: really hppa2.0-hp
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893)
+		# FIXME: really hppa2.0-hp
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k8[0-9][13679] | hp8[0-9][13679])
+		basic_machine=hppa1.1-hp
+		;;
+	hp9k8[0-9][0-9] | hp8[0-9][0-9])
+		basic_machine=hppa1.0-hp
+		;;
+	hppa-next)
+		os=-nextstep3
+		;;
+	hppaosf)
+		basic_machine=hppa1.1-hp
+		os=-osf
+		;;
+	hppro)
+		basic_machine=hppa1.1-hp
+		os=-proelf
+		;;
+	i370-ibm* | ibm*)
+		basic_machine=i370-ibm
+		;;
+	i*86v32)
+		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+		os=-sysv32
+		;;
+	i*86v4*)
+		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+		os=-sysv4
+		;;
+	i*86v)
+		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+		os=-sysv
+		;;
+	i*86sol2)
+		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
+		os=-solaris2
+		;;
+	i386mach)
+		basic_machine=i386-mach
+		os=-mach
+		;;
+	i386-vsta | vsta)
+		basic_machine=i386-unknown
+		os=-vsta
+		;;
+	iris | iris4d)
+		basic_machine=mips-sgi
+		case $os in
+		    -irix*)
+			;;
+		    *)
+			os=-irix4
+			;;
+		esac
+		;;
+	isi68 | isi)
+		basic_machine=m68k-isi
+		os=-sysv
+		;;
+	m68knommu)
+		basic_machine=m68k-unknown
+		os=-linux
+		;;
+	m68knommu-*)
+		basic_machine=m68k-`echo $basic_machine | sed 's/^[^-]*-//'`
+		os=-linux
+		;;
+	m88k-omron*)
+		basic_machine=m88k-omron
+		;;
+	magnum | m3230)
+		basic_machine=mips-mips
+		os=-sysv
+		;;
+	merlin)
+		basic_machine=ns32k-utek
+		os=-sysv
+		;;
+	microblaze*)
+		basic_machine=microblaze-xilinx
+		;;
+	mingw64)
+		basic_machine=x86_64-pc
+		os=-mingw64
+		;;
+	mingw32)
+		basic_machine=i386-pc
+		os=-mingw32
+		;;
+	mingw32ce)
+		basic_machine=arm-unknown
+		os=-mingw32ce
+		;;
+	miniframe)
+		basic_machine=m68000-convergent
+		;;
+	*mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*)
+		basic_machine=m68k-atari
+		os=-mint
+		;;
+	mips3*-*)
+		basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`
+		;;
+	mips3*)
+		basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown
+		;;
+	monitor)
+		basic_machine=m68k-rom68k
+		os=-coff
+		;;
+	morphos)
+		basic_machine=powerpc-unknown
+		os=-morphos
+		;;
+	msdos)
+		basic_machine=i386-pc
+		os=-msdos
+		;;
+	ms1-*)
+		basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'`
+		;;
+	msys)
+		basic_machine=i386-pc
+		os=-msys
+		;;
+	mvs)
+		basic_machine=i370-ibm
+		os=-mvs
+		;;
+	nacl)
+		basic_machine=le32-unknown
+		os=-nacl
+		;;
+	ncr3000)
+		basic_machine=i486-ncr
+		os=-sysv4
+		;;
+	netbsd386)
+		basic_machine=i386-unknown
+		os=-netbsd
+		;;
+	netwinder)
+		basic_machine=armv4l-rebel
+		os=-linux
+		;;
+	news | news700 | news800 | news900)
+		basic_machine=m68k-sony
+		os=-newsos
+		;;
+	news1000)
+		basic_machine=m68030-sony
+		os=-newsos
+		;;
+	news-3600 | risc-news)
+		basic_machine=mips-sony
+		os=-newsos
+		;;
+	necv70)
+		basic_machine=v70-nec
+		os=-sysv
+		;;
+	next | m*-next )
+		basic_machine=m68k-next
+		case $os in
+		    -nextstep* )
+			;;
+		    -ns2*)
+		      os=-nextstep2
+			;;
+		    *)
+		      os=-nextstep3
+			;;
+		esac
+		;;
+	nh3000)
+		basic_machine=m68k-harris
+		os=-cxux
+		;;
+	nh[45]000)
+		basic_machine=m88k-harris
+		os=-cxux
+		;;
+	nindy960)
+		basic_machine=i960-intel
+		os=-nindy
+		;;
+	mon960)
+		basic_machine=i960-intel
+		os=-mon960
+		;;
+	nonstopux)
+		basic_machine=mips-compaq
+		os=-nonstopux
+		;;
+	np1)
+		basic_machine=np1-gould
+		;;
+	neo-tandem)
+		basic_machine=neo-tandem
+		;;
+	nse-tandem)
+		basic_machine=nse-tandem
+		;;
+	nsr-tandem)
+		basic_machine=nsr-tandem
+		;;
+	op50n-* | op60c-*)
+		basic_machine=hppa1.1-oki
+		os=-proelf
+		;;
+	openrisc | openrisc-*)
+		basic_machine=or32-unknown
+		;;
+	os400)
+		basic_machine=powerpc-ibm
+		os=-os400
+		;;
+	OSE68000 | ose68000)
+		basic_machine=m68000-ericsson
+		os=-ose
+		;;
+	os68k)
+		basic_machine=m68k-none
+		os=-os68k
+		;;
+	pa-hitachi)
+		basic_machine=hppa1.1-hitachi
+		os=-hiuxwe2
+		;;
+	paragon)
+		basic_machine=i860-intel
+		os=-osf
+		;;
+	parisc)
+		basic_machine=hppa-unknown
+		os=-linux
+		;;
+	parisc-*)
+		basic_machine=hppa-`echo $basic_machine | sed 's/^[^-]*-//'`
+		os=-linux
+		;;
+	pbd)
+		basic_machine=sparc-tti
+		;;
+	pbb)
+		basic_machine=m68k-tti
+		;;
+	pc532 | pc532-*)
+		basic_machine=ns32k-pc532
+		;;
+	pc98)
+		basic_machine=i386-pc
+		;;
+	pc98-*)
+		basic_machine=i386-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	pentium | p5 | k5 | k6 | nexgen | viac3)
+		basic_machine=i586-pc
+		;;
+	pentiumpro | p6 | 6x86 | athlon | athlon_*)
+		basic_machine=i686-pc
+		;;
+	pentiumii | pentium2 | pentiumiii | pentium3)
+		basic_machine=i686-pc
+		;;
+	pentium4)
+		basic_machine=i786-pc
+		;;
+	pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*)
+		basic_machine=i586-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	pentiumpro-* | p6-* | 6x86-* | athlon-*)
+		basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*)
+		basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	pentium4-*)
+		basic_machine=i786-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	pn)
+		basic_machine=pn-gould
+		;;
+	power)	basic_machine=power-ibm
+		;;
+	ppc | ppcbe)	basic_machine=powerpc-unknown
+		;;
+	ppc-* | ppcbe-*)
+		basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	ppcle | powerpclittle | ppc-le | powerpc-little)
+		basic_machine=powerpcle-unknown
+		;;
+	ppcle-* | powerpclittle-*)
+		basic_machine=powerpcle-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	ppc64)	basic_machine=powerpc64-unknown
+		;;
+	ppc64-*) basic_machine=powerpc64-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	ppc64le | powerpc64little | ppc64-le | powerpc64-little)
+		basic_machine=powerpc64le-unknown
+		;;
+	ppc64le-* | powerpc64little-*)
+		basic_machine=powerpc64le-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	ps2)
+		basic_machine=i386-ibm
+		;;
+	pw32)
+		basic_machine=i586-unknown
+		os=-pw32
+		;;
+	rdos | rdos64)
+		basic_machine=x86_64-pc
+		os=-rdos
+		;;
+	rdos32)
+		basic_machine=i386-pc
+		os=-rdos
+		;;
+	rom68k)
+		basic_machine=m68k-rom68k
+		os=-coff
+		;;
+	rm[46]00)
+		basic_machine=mips-siemens
+		;;
+	rtpc | rtpc-*)
+		basic_machine=romp-ibm
+		;;
+	s390 | s390-*)
+		basic_machine=s390-ibm
+		;;
+	s390x | s390x-*)
+		basic_machine=s390x-ibm
+		;;
+	sa29200)
+		basic_machine=a29k-amd
+		os=-udi
+		;;
+	sb1)
+		basic_machine=mipsisa64sb1-unknown
+		;;
+	sb1el)
+		basic_machine=mipsisa64sb1el-unknown
+		;;
+	sde)
+		basic_machine=mipsisa32-sde
+		os=-elf
+		;;
+	sei)
+		basic_machine=mips-sei
+		os=-seiux
+		;;
+	sequent)
+		basic_machine=i386-sequent
+		;;
+	sh)
+		basic_machine=sh-hitachi
+		os=-hms
+		;;
+	sh5el)
+		basic_machine=sh5le-unknown
+		;;
+	sh64)
+		basic_machine=sh64-unknown
+		;;
+	sparclite-wrs | simso-wrs)
+		basic_machine=sparclite-wrs
+		os=-vxworks
+		;;
+	sps7)
+		basic_machine=m68k-bull
+		os=-sysv2
+		;;
+	spur)
+		basic_machine=spur-unknown
+		;;
+	st2000)
+		basic_machine=m68k-tandem
+		;;
+	stratus)
+		basic_machine=i860-stratus
+		os=-sysv4
+		;;
+	strongarm-* | thumb-*)
+		basic_machine=arm-`echo $basic_machine | sed 's/^[^-]*-//'`
+		;;
+	sun2)
+		basic_machine=m68000-sun
+		;;
+	sun2os3)
+		basic_machine=m68000-sun
+		os=-sunos3
+		;;
+	sun2os4)
+		basic_machine=m68000-sun
+		os=-sunos4
+		;;
+	sun3os3)
+		basic_machine=m68k-sun
+		os=-sunos3
+		;;
+	sun3os4)
+		basic_machine=m68k-sun
+		os=-sunos4
+		;;
+	sun4os3)
+		basic_machine=sparc-sun
+		os=-sunos3
+		;;
+	sun4os4)
+		basic_machine=sparc-sun
+		os=-sunos4
+		;;
+	sun4sol2)
+		basic_machine=sparc-sun
+		os=-solaris2
+		;;
+	sun3 | sun3-*)
+		basic_machine=m68k-sun
+		;;
+	sun4)
+		basic_machine=sparc-sun
+		;;
+	sun386 | sun386i | roadrunner)
+		basic_machine=i386-sun
+		;;
+	sv1)
+		basic_machine=sv1-cray
+		os=-unicos
+		;;
+	symmetry)
+		basic_machine=i386-sequent
+		os=-dynix
+		;;
+	t3e)
+		basic_machine=alphaev5-cray
+		os=-unicos
+		;;
+	t90)
+		basic_machine=t90-cray
+		os=-unicos
+		;;
+	tile*)
+		basic_machine=$basic_machine-unknown
+		os=-linux-gnu
+		;;
+	tx39)
+		basic_machine=mipstx39-unknown
+		;;
+	tx39el)
+		basic_machine=mipstx39el-unknown
+		;;
+	toad1)
+		basic_machine=pdp10-xkl
+		os=-tops20
+		;;
+	tower | tower-32)
+		basic_machine=m68k-ncr
+		;;
+	tpf)
+		basic_machine=s390x-ibm
+		os=-tpf
+		;;
+	udi29k)
+		basic_machine=a29k-amd
+		os=-udi
+		;;
+	ultra3)
+		basic_machine=a29k-nyu
+		os=-sym1
+		;;
+	v810 | necv810)
+		basic_machine=v810-nec
+		os=-none
+		;;
+	vaxv)
+		basic_machine=vax-dec
+		os=-sysv
+		;;
+	vms)
+		basic_machine=vax-dec
+		os=-vms
+		;;
+	vpp*|vx|vx-*)
+		basic_machine=f301-fujitsu
+		;;
+	vxworks960)
+		basic_machine=i960-wrs
+		os=-vxworks
+		;;
+	vxworks68)
+		basic_machine=m68k-wrs
+		os=-vxworks
+		;;
+	vxworks29k)
+		basic_machine=a29k-wrs
+		os=-vxworks
+		;;
+	w65*)
+		basic_machine=w65-wdc
+		os=-none
+		;;
+	w89k-*)
+		basic_machine=hppa1.1-winbond
+		os=-proelf
+		;;
+	xbox)
+		basic_machine=i686-pc
+		os=-mingw32
+		;;
+	xps | xps100)
+		basic_machine=xps100-honeywell
+		;;
+	xscale-* | xscalee[bl]-*)
+		basic_machine=`echo $basic_machine | sed 's/^xscale/arm/'`
+		;;
+	ymp)
+		basic_machine=ymp-cray
+		os=-unicos
+		;;
+	z8k-*-coff)
+		basic_machine=z8k-unknown
+		os=-sim
+		;;
+	z80-*-coff)
+		basic_machine=z80-unknown
+		os=-sim
+		;;
+	none)
+		basic_machine=none-none
+		os=-none
+		;;
+
+# Here we handle the default manufacturer of certain CPU types.  It is in
+# some cases the only manufacturer, in others, it is the most popular.
+	w89k)
+		basic_machine=hppa1.1-winbond
+		;;
+	op50n)
+		basic_machine=hppa1.1-oki
+		;;
+	op60c)
+		basic_machine=hppa1.1-oki
+		;;
+	romp)
+		basic_machine=romp-ibm
+		;;
+	mmix)
+		basic_machine=mmix-knuth
+		;;
+	rs6000)
+		basic_machine=rs6000-ibm
+		;;
+	vax)
+		basic_machine=vax-dec
+		;;
+	pdp10)
+		# there are many clones, so DEC is not a safe bet
+		basic_machine=pdp10-unknown
+		;;
+	pdp11)
+		basic_machine=pdp11-dec
+		;;
+	we32k)
+		basic_machine=we32k-att
+		;;
+	sh[1234] | sh[24]a | sh[24]aeb | sh[34]eb | sh[1234]le | sh[23]ele)
+		basic_machine=sh-unknown
+		;;
+	sparc | sparcv8 | sparcv9 | sparcv9b | sparcv9v)
+		basic_machine=sparc-sun
+		;;
+	cydra)
+		basic_machine=cydra-cydrome
+		;;
+	orion)
+		basic_machine=orion-highlevel
+		;;
+	orion105)
+		basic_machine=clipper-highlevel
+		;;
+	mac | mpw | mac-mpw)
+		basic_machine=m68k-apple
+		;;
+	pmac | pmac-mpw)
+		basic_machine=powerpc-apple
+		;;
+	*-unknown)
+		# Make sure to match an already-canonicalized machine name.
+		;;
+	*)
+		echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
+		exit 1
+		;;
+esac
+
+# Here we canonicalize certain aliases for manufacturers.
+case $basic_machine in
+	*-digital*)
+		basic_machine=`echo $basic_machine | sed 's/digital.*/dec/'`
+		;;
+	*-commodore*)
+		basic_machine=`echo $basic_machine | sed 's/commodore.*/cbm/'`
+		;;
+	*)
+		;;
+esac
+
+# Decode manufacturer-specific aliases for certain operating systems.
+
+if [ x"$os" != x"" ]
+then
+case $os in
+	# First match some system type aliases
+	# that might get confused with valid system types.
+	# -solaris* is a basic system type, with this one exception.
+	-auroraux)
+		os=-auroraux
+		;;
+	-solaris1 | -solaris1.*)
+		os=`echo $os | sed -e 's|solaris1|sunos4|'`
+		;;
+	-solaris)
+		os=-solaris2
+		;;
+	-svr4*)
+		os=-sysv4
+		;;
+	-unixware*)
+		os=-sysv4.2uw
+		;;
+	-gnu/linux*)
+		os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'`
+		;;
+	# First accept the basic system types.
+	# The portable systems comes first.
+	# Each alternative MUST END IN A *, to match a version number.
+	# -sysv* is not here because it comes later, after sysvr4.
+	-gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
+	      | -*vms* | -sco* | -esix* | -isc* | -aix* | -cnk* | -sunos | -sunos[34]*\
+	      | -hpux* | -unos* | -osf* | -luna* | -dgux* | -auroraux* | -solaris* \
+	      | -sym* | -kopensolaris* | -plan9* \
+	      | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
+	      | -aos* | -aros* \
+	      | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
+	      | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
+	      | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* \
+	      | -bitrig* | -openbsd* | -solidbsd* \
+	      | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \
+	      | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
+	      | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
+	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
+	      | -chorusos* | -chorusrdb* | -cegcc* \
+	      | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
+	      | -mingw32* | -mingw64* | -linux-gnu* | -linux-android* \
+	      | -linux-newlib* | -linux-musl* | -linux-uclibc* \
+	      | -uxpv* | -beos* | -mpeix* | -udk* \
+	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
+	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
+	      | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \
+	      | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \
+	      | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \
+	      | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
+	      | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es*)
+	# Remember, each alternative MUST END IN *, to match a version number.
+		;;
+	-qnx*)
+		case $basic_machine in
+		    x86-* | i*86-*)
+			;;
+		    *)
+			os=-nto$os
+			;;
+		esac
+		;;
+	-nto-qnx*)
+		;;
+	-nto*)
+		os=`echo $os | sed -e 's|nto|nto-qnx|'`
+		;;
+	-sim | -es1800* | -hms* | -xray | -os68k* | -none* | -v88r* \
+	      | -windows* | -osx | -abug | -netware* | -os9* | -beos* | -haiku* \
+	      | -macos* | -mpw* | -magic* | -mmixware* | -mon960* | -lnews*)
+		;;
+	-mac*)
+		os=`echo $os | sed -e 's|mac|macos|'`
+		;;
+	-linux-dietlibc)
+		os=-linux-dietlibc
+		;;
+	-linux*)
+		os=`echo $os | sed -e 's|linux|linux-gnu|'`
+		;;
+	-sunos5*)
+		os=`echo $os | sed -e 's|sunos5|solaris2|'`
+		;;
+	-sunos6*)
+		os=`echo $os | sed -e 's|sunos6|solaris3|'`
+		;;
+	-opened*)
+		os=-openedition
+		;;
+	-os400*)
+		os=-os400
+		;;
+	-wince*)
+		os=-wince
+		;;
+	-osfrose*)
+		os=-osfrose
+		;;
+	-osf*)
+		os=-osf
+		;;
+	-utek*)
+		os=-bsd
+		;;
+	-dynix*)
+		os=-bsd
+		;;
+	-acis*)
+		os=-aos
+		;;
+	-atheos*)
+		os=-atheos
+		;;
+	-syllable*)
+		os=-syllable
+		;;
+	-386bsd)
+		os=-bsd
+		;;
+	-ctix* | -uts*)
+		os=-sysv
+		;;
+	-nova*)
+		os=-rtmk-nova
+		;;
+	-ns2 )
+		os=-nextstep2
+		;;
+	-nsk*)
+		os=-nsk
+		;;
+	# Preserve the version number of sinix5.
+	-sinix5.*)
+		os=`echo $os | sed -e 's|sinix|sysv|'`
+		;;
+	-sinix*)
+		os=-sysv4
+		;;
+	-tpf*)
+		os=-tpf
+		;;
+	-triton*)
+		os=-sysv3
+		;;
+	-oss*)
+		os=-sysv3
+		;;
+	-svr4)
+		os=-sysv4
+		;;
+	-svr3)
+		os=-sysv3
+		;;
+	-sysvr4)
+		os=-sysv4
+		;;
+	# This must come after -sysvr4.
+	-sysv*)
+		;;
+	-ose*)
+		os=-ose
+		;;
+	-es1800*)
+		os=-ose
+		;;
+	-xenix)
+		os=-xenix
+		;;
+	-*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
+		os=-mint
+		;;
+	-aros*)
+		os=-aros
+		;;
+	-zvmoe)
+		os=-zvmoe
+		;;
+	-dicos*)
+		os=-dicos
+		;;
+	-nacl*)
+		;;
+	-none)
+		;;
+	*)
+		# Get rid of the `-' at the beginning of $os.
+		os=`echo $os | sed 's/[^-]*-//'`
+		echo Invalid configuration \`$1\': system \`$os\' not recognized 1>&2
+		exit 1
+		;;
+esac
+else
+
+# Here we handle the default operating systems that come with various machines.
+# The value should be what the vendor currently ships out the door with their
+# machine or put another way, the most popular os provided with the machine.
+
+# Note that if you're going to try to match "-MANUFACTURER" here (say,
+# "-sun"), then you have to tell the case statement up towards the top
+# that MANUFACTURER isn't an operating system.  Otherwise, code above
+# will signal an error saying that MANUFACTURER isn't an operating
+# system, and we'll never get to this point.
+
+case $basic_machine in
+	score-*)
+		os=-elf
+		;;
+	spu-*)
+		os=-elf
+		;;
+	*-acorn)
+		os=-riscix1.2
+		;;
+	arm*-rebel)
+		os=-linux
+		;;
+	arm*-semi)
+		os=-aout
+		;;
+	c4x-* | tic4x-*)
+		os=-coff
+		;;
+	hexagon-*)
+		os=-elf
+		;;
+	tic54x-*)
+		os=-coff
+		;;
+	tic55x-*)
+		os=-coff
+		;;
+	tic6x-*)
+		os=-coff
+		;;
+	# This must come before the *-dec entry.
+	pdp10-*)
+		os=-tops20
+		;;
+	pdp11-*)
+		os=-none
+		;;
+	*-dec | vax-*)
+		os=-ultrix4.2
+		;;
+	m68*-apollo)
+		os=-domain
+		;;
+	i386-sun)
+		os=-sunos4.0.2
+		;;
+	m68000-sun)
+		os=-sunos3
+		;;
+	m68*-cisco)
+		os=-aout
+		;;
+	mep-*)
+		os=-elf
+		;;
+	mips*-cisco)
+		os=-elf
+		;;
+	mips*-*)
+		os=-elf
+		;;
+	or1k-*)
+		os=-elf
+		;;
+	or32-*)
+		os=-coff
+		;;
+	*-tti)	# must be before sparc entry or we get the wrong os.
+		os=-sysv3
+		;;
+	sparc-* | *-sun)
+		os=-sunos4.1.1
+		;;
+	*-be)
+		os=-beos
+		;;
+	*-haiku)
+		os=-haiku
+		;;
+	*-ibm)
+		os=-aix
+		;;
+	*-knuth)
+		os=-mmixware
+		;;
+	*-wec)
+		os=-proelf
+		;;
+	*-winbond)
+		os=-proelf
+		;;
+	*-oki)
+		os=-proelf
+		;;
+	*-hp)
+		os=-hpux
+		;;
+	*-hitachi)
+		os=-hiux
+		;;
+	i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent)
+		os=-sysv
+		;;
+	*-cbm)
+		os=-amigaos
+		;;
+	*-dg)
+		os=-dgux
+		;;
+	*-dolphin)
+		os=-sysv3
+		;;
+	m68k-ccur)
+		os=-rtu
+		;;
+	m88k-omron*)
+		os=-luna
+		;;
+	*-next )
+		os=-nextstep
+		;;
+	*-sequent)
+		os=-ptx
+		;;
+	*-crds)
+		os=-unos
+		;;
+	*-ns)
+		os=-genix
+		;;
+	i370-*)
+		os=-mvs
+		;;
+	*-next)
+		os=-nextstep3
+		;;
+	*-gould)
+		os=-sysv
+		;;
+	*-highlevel)
+		os=-bsd
+		;;
+	*-encore)
+		os=-bsd
+		;;
+	*-sgi)
+		os=-irix
+		;;
+	*-siemens)
+		os=-sysv4
+		;;
+	*-masscomp)
+		os=-rtu
+		;;
+	f30[01]-fujitsu | f700-fujitsu)
+		os=-uxpv
+		;;
+	*-rom68k)
+		os=-coff
+		;;
+	*-*bug)
+		os=-coff
+		;;
+	*-apple)
+		os=-macos
+		;;
+	*-atari*)
+		os=-mint
+		;;
+	*)
+		os=-none
+		;;
+esac
+fi
+
+# Here we handle the case where we know the os, and the CPU type, but not the
+# manufacturer.  We pick the logical manufacturer.
+vendor=unknown
+case $basic_machine in
+	*-unknown)
+		case $os in
+			-riscix*)
+				vendor=acorn
+				;;
+			-sunos*)
+				vendor=sun
+				;;
+			-cnk*|-aix*)
+				vendor=ibm
+				;;
+			-beos*)
+				vendor=be
+				;;
+			-hpux*)
+				vendor=hp
+				;;
+			-mpeix*)
+				vendor=hp
+				;;
+			-hiux*)
+				vendor=hitachi
+				;;
+			-unos*)
+				vendor=crds
+				;;
+			-dgux*)
+				vendor=dg
+				;;
+			-luna*)
+				vendor=omron
+				;;
+			-genix*)
+				vendor=ns
+				;;
+			-mvs* | -opened*)
+				vendor=ibm
+				;;
+			-os400*)
+				vendor=ibm
+				;;
+			-ptx*)
+				vendor=sequent
+				;;
+			-tpf*)
+				vendor=ibm
+				;;
+			-vxsim* | -vxworks* | -windiss*)
+				vendor=wrs
+				;;
+			-aux*)
+				vendor=apple
+				;;
+			-hms*)
+				vendor=hitachi
+				;;
+			-mpw* | -macos*)
+				vendor=apple
+				;;
+			-*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
+				vendor=atari
+				;;
+			-vos*)
+				vendor=stratus
+				;;
+		esac
+		basic_machine=`echo $basic_machine | sed "s/unknown/$vendor/"`
+		;;
+esac
+
+echo $basic_machine$os
+exit
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "timestamp='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
diff --git a/proto/presentproto/configure b/proto/presentproto/configure
new file mode 100644
index 000000000..10b21005b
--- /dev/null
+++ b/proto/presentproto/configure
@@ -0,0 +1,11776 @@
+#! /bin/sh
+# Guess values for system-dependent variables and create Makefiles.
+# Generated by GNU Autoconf 2.69 for PresentProto 1.0.
+#
+# Report bugs to <https://bugs.freedesktop.org/enter_bug.cgi?product=xorg>.
+#
+#
+# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
+#
+#
+# This configure script is free software; the Free Software Foundation
+# gives unlimited permission to copy, distribute and modify it.
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
+
+# Be more Bourne compatible
+DUALCASE=1; export DUALCASE # for MKS sh
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else
+  case `(set -o) 2>/dev/null` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+
+
+as_nl='
+'
+export as_nl
+# Printing a long string crashes Solaris 7 /usr/bin/printf.
+as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
+# Prefer a ksh shell builtin over an external printf program on Solaris,
+# but without wasting forks for bash or zsh.
+if test -z "$BASH_VERSION$ZSH_VERSION" \
+    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='print -r --'
+  as_echo_n='print -rn --'
+elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='printf %s\n'
+  as_echo_n='printf %s'
+else
+  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
+    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
+    as_echo_n='/usr/ucb/echo -n'
+  else
+    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
+    as_echo_n_body='eval
+      arg=$1;
+      case $arg in #(
+      *"$as_nl"*)
+	expr "X$arg" : "X\\(.*\\)$as_nl";
+	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
+      esac;
+      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
+    '
+    export as_echo_n_body
+    as_echo_n='sh -c $as_echo_n_body as_echo'
+  fi
+  export as_echo_body
+  as_echo='sh -c $as_echo_body as_echo'
+fi
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+  PATH_SEPARATOR=:
+  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
+    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
+      PATH_SEPARATOR=';'
+  }
+fi
+
+
+# IFS
+# We need space, tab and new line, in precisely that order.  Quoting is
+# there to prevent editors from complaining about space-tab.
+# (If _AS_PATH_WALK were called with IFS unset, it would disable word
+# splitting by setting IFS to empty value.)
+IFS=" ""	$as_nl"
+
+# Find who we are.  Look in the path if we contain no directory separator.
+as_myself=
+case $0 in #((
+  *[\\/]* ) as_myself=$0 ;;
+  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  done
+IFS=$as_save_IFS
+
+     ;;
+esac
+# We did not find ourselves, most probably we were run as `sh COMMAND'
+# in which case we are not to be found in the path.
+if test "x$as_myself" = x; then
+  as_myself=$0
+fi
+if test ! -f "$as_myself"; then
+  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  exit 1
+fi
+
+# Unset variables that we do not need and which cause bugs (e.g. in
+# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
+# suppresses any "Segmentation fault" message there.  '((' could
+# trigger a bug in pdksh 5.2.14.
+for as_var in BASH_ENV ENV MAIL MAILPATH
+do eval test x\${$as_var+set} = xset \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
+done
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+LC_ALL=C
+export LC_ALL
+LANGUAGE=C
+export LANGUAGE
+
+# CDPATH.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+# Use a proper internal environment variable to ensure we don't fall
+  # into an infinite loop, continuously re-executing ourselves.
+  if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then
+    _as_can_reexec=no; export _as_can_reexec;
+    # We cannot yet assume a decent shell, so we have to provide a
+# neutralization value for shells without unset; and this also
+# works around shells that cannot unset nonexistent variables.
+# Preserve -v and -x to the replacement shell.
+BASH_ENV=/dev/null
+ENV=/dev/null
+(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+case $- in # ((((
+  *v*x* | *x*v* ) as_opts=-vx ;;
+  *v* ) as_opts=-v ;;
+  *x* ) as_opts=-x ;;
+  * ) as_opts= ;;
+esac
+exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+# Admittedly, this is quite paranoid, since all the known shells bail
+# out after a failed `exec'.
+$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+as_fn_exit 255
+  fi
+  # We don't want this to propagate to other subprocesses.
+          { _as_can_reexec=; unset _as_can_reexec;}
+if test "x$CONFIG_SHELL" = x; then
+  as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '\${1+\"\$@\"}'='\"\$@\"'
+  setopt NO_GLOB_SUBST
+else
+  case \`(set -o) 2>/dev/null\` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+"
+  as_required="as_fn_return () { (exit \$1); }
+as_fn_success () { as_fn_return 0; }
+as_fn_failure () { as_fn_return 1; }
+as_fn_ret_success () { return 0; }
+as_fn_ret_failure () { return 1; }
+
+exitcode=0
+as_fn_success || { exitcode=1; echo as_fn_success failed.; }
+as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
+as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
+as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
+if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then :
+
+else
+  exitcode=1; echo positional parameters were not saved.
+fi
+test x\$exitcode = x0 || exit 1
+test -x / || exit 1"
+  as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
+  as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
+  eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
+  test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1
+test \$(( 1 + 1 )) = 2 || exit 1"
+  if (eval "$as_required") 2>/dev/null; then :
+  as_have_required=yes
+else
+  as_have_required=no
+fi
+  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then :
+
+else
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_found=false
+for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  as_found=:
+  case $as_dir in #(
+	 /*)
+	   for as_base in sh bash ksh sh5; do
+	     # Try only shells that exist, to save several forks.
+	     as_shell=$as_dir/$as_base
+	     if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
+		    { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then :
+  CONFIG_SHELL=$as_shell as_have_required=yes
+		   if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then :
+  break 2
+fi
+fi
+	   done;;
+       esac
+  as_found=false
+done
+$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
+	      { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then :
+  CONFIG_SHELL=$SHELL as_have_required=yes
+fi; }
+IFS=$as_save_IFS
+
+
+      if test "x$CONFIG_SHELL" != x; then :
+  export CONFIG_SHELL
+             # We cannot yet assume a decent shell, so we have to provide a
+# neutralization value for shells without unset; and this also
+# works around shells that cannot unset nonexistent variables.
+# Preserve -v and -x to the replacement shell.
+BASH_ENV=/dev/null
+ENV=/dev/null
+(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+case $- in # ((((
+  *v*x* | *x*v* ) as_opts=-vx ;;
+  *v* ) as_opts=-v ;;
+  *x* ) as_opts=-x ;;
+  * ) as_opts= ;;
+esac
+exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+# Admittedly, this is quite paranoid, since all the known shells bail
+# out after a failed `exec'.
+$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+exit 255
+fi
+
+    if test x$as_have_required = xno; then :
+  $as_echo "$0: This script requires a shell more modern than all"
+  $as_echo "$0: the shells that I found on your system."
+  if test x${ZSH_VERSION+set} = xset ; then
+    $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should"
+    $as_echo "$0: be upgraded to zsh 4.3.4 or later."
+  else
+    $as_echo "$0: Please tell bug-autoconf@gnu.org and
+$0: https://bugs.freedesktop.org/enter_bug.cgi?product=xorg
+$0: about your system, including any error possibly output
+$0: before this message. Then install a modern shell, or
+$0: manually run the script under such a shell if you do
+$0: have one."
+  fi
+  exit 1
+fi
+fi
+fi
+SHELL=${CONFIG_SHELL-/bin/sh}
+export SHELL
+# Unset more variables known to interfere with behavior of common tools.
+CLICOLOR_FORCE= GREP_OPTIONS=
+unset CLICOLOR_FORCE GREP_OPTIONS
+
+## --------------------- ##
+## M4sh Shell Functions. ##
+## --------------------- ##
+# as_fn_unset VAR
+# ---------------
+# Portably unset VAR.
+as_fn_unset ()
+{
+  { eval $1=; unset $1;}
+}
+as_unset=as_fn_unset
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+
+# as_fn_mkdir_p
+# -------------
+# Create "$as_dir" as a directory, including parents if necessary.
+as_fn_mkdir_p ()
+{
+
+  case $as_dir in #(
+  -*) as_dir=./$as_dir;;
+  esac
+  test -d "$as_dir" || eval $as_mkdir_p || {
+    as_dirs=
+    while :; do
+      case $as_dir in #(
+      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *) as_qdir=$as_dir;;
+      esac
+      as_dirs="'$as_qdir' $as_dirs"
+      as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_dir" : 'X\(//\)[^/]' \| \
+	 X"$as_dir" : 'X\(//\)$' \| \
+	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      test -d "$as_dir" && break
+    done
+    test -z "$as_dirs" || eval "mkdir $as_dirs"
+  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
+
+
+} # as_fn_mkdir_p
+
+# as_fn_executable_p FILE
+# -----------------------
+# Test if FILE is an executable regular file.
+as_fn_executable_p ()
+{
+  test -f "$1" && test -x "$1"
+} # as_fn_executable_p
+# as_fn_append VAR VALUE
+# ----------------------
+# Append the text in VALUE to the end of the definition contained in VAR. Take
+# advantage of any shell optimizations that allow amortized linear growth over
+# repeated appends, instead of the typical quadratic growth present in naive
+# implementations.
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+  eval 'as_fn_append ()
+  {
+    eval $1+=\$2
+  }'
+else
+  as_fn_append ()
+  {
+    eval $1=\$$1\$2
+  }
+fi # as_fn_append
+
+# as_fn_arith ARG...
+# ------------------
+# Perform arithmetic evaluation on the ARGs, and store the result in the
+# global $as_val. Take advantage of shells that can avoid forks. The arguments
+# must be portable across $(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+  eval 'as_fn_arith ()
+  {
+    as_val=$(( $* ))
+  }'
+else
+  as_fn_arith ()
+  {
+    as_val=`expr "$@" || test $? -eq 1`
+  }
+fi # as_fn_arith
+
+
+# as_fn_error STATUS ERROR [LINENO LOG_FD]
+# ----------------------------------------
+# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
+# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
+# script with STATUS, using 1 if that was 0.
+as_fn_error ()
+{
+  as_status=$1; test $as_status -eq 0 && as_status=1
+  if test "$4"; then
+    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+  fi
+  $as_echo "$as_me: error: $2" >&2
+  as_fn_exit $as_status
+} # as_fn_error
+
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+  as_dirname=dirname
+else
+  as_dirname=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+
+  as_lineno_1=$LINENO as_lineno_1a=$LINENO
+  as_lineno_2=$LINENO as_lineno_2a=$LINENO
+  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
+  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
+  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
+  sed -n '
+    p
+    /[$]LINENO/=
+  ' <$as_myself |
+    sed '
+      s/[$]LINENO.*/&-/
+      t lineno
+      b
+      :lineno
+      N
+      :loop
+      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
+      t loop
+      s/-\n.*//
+    ' >$as_me.lineno &&
+  chmod +x "$as_me.lineno" ||
+    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+
+  # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
+  # already done that, so ensure we don't try to do so again and fall
+  # in an infinite loop.  This has already happened in practice.
+  _as_can_reexec=no; export _as_can_reexec
+  # Don't try to exec as it changes $[0], causing all sort of problems
+  # (the dirname of $[0] is not the place where we might find the
+  # original and so on.  Autoconf is especially sensitive to this).
+  . "./$as_me.lineno"
+  # Exit status is that of the last command.
+  exit
+}
+
+ECHO_C= ECHO_N= ECHO_T=
+case `echo -n x` in #(((((
+-n*)
+  case `echo 'xy\c'` in
+  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
+  xy)  ECHO_C='\c';;
+  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
+       ECHO_T='	';;
+  esac;;
+*)
+  ECHO_N='-n';;
+esac
+
+rm -f conf$$ conf$$.exe conf$$.file
+if test -d conf$$.dir; then
+  rm -f conf$$.dir/conf$$.file
+else
+  rm -f conf$$.dir
+  mkdir conf$$.dir 2>/dev/null
+fi
+if (echo >conf$$.file) 2>/dev/null; then
+  if ln -s conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s='ln -s'
+    # ... but there are two gotchas:
+    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+    # In both cases, we have to default to `cp -pR'.
+    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+      as_ln_s='cp -pR'
+  elif ln conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s=ln
+  else
+    as_ln_s='cp -pR'
+  fi
+else
+  as_ln_s='cp -pR'
+fi
+rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+rmdir conf$$.dir 2>/dev/null
+
+if mkdir -p . 2>/dev/null; then
+  as_mkdir_p='mkdir -p "$as_dir"'
+else
+  test -d ./-p && rmdir ./-p
+  as_mkdir_p=false
+fi
+
+as_test_x='test -x'
+as_executable_p=as_fn_executable_p
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+
+
+test -n "$DJDIR" || exec 7<&0 </dev/null
+exec 6>&1
+
+# Name of the host.
+# hostname on some systems (SVR3.2, old GNU/Linux) returns a bogus exit status,
+# so uname gets run too.
+ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
+
+#
+# Initializations.
+#
+ac_default_prefix=/usr/local
+ac_clean_files=
+ac_config_libobj_dir=.
+LIBOBJS=
+cross_compiling=no
+subdirs=
+MFLAGS=
+MAKEFLAGS=
+
+# Identity of this package.
+PACKAGE_NAME='PresentProto'
+PACKAGE_TARNAME='presentproto'
+PACKAGE_VERSION='1.0'
+PACKAGE_STRING='PresentProto 1.0'
+PACKAGE_BUGREPORT='https://bugs.freedesktop.org/enter_bug.cgi?product=xorg'
+PACKAGE_URL=''
+
+# Factoring default headers for most tests.
+ac_includes_default="\
+#include <stdio.h>
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_STAT_H
+# include <sys/stat.h>
+#endif
+#ifdef STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#else
+# ifdef HAVE_STDLIB_H
+#  include <stdlib.h>
+# endif
+#endif
+#ifdef HAVE_STRING_H
+# if !defined STDC_HEADERS && defined HAVE_MEMORY_H
+#  include <memory.h>
+# endif
+# include <string.h>
+#endif
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif
+#ifdef HAVE_INTTYPES_H
+# include <inttypes.h>
+#endif
+#ifdef HAVE_STDINT_H
+# include <stdint.h>
+#endif
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif"
+
+ac_subst_vars='am__EXEEXT_FALSE
+am__EXEEXT_TRUE
+LTLIBOBJS
+LIBOBJS
+MAN_SUBSTS
+XORG_MAN_PAGE
+ADMIN_MAN_DIR
+DRIVER_MAN_DIR
+MISC_MAN_DIR
+FILE_MAN_DIR
+LIB_MAN_DIR
+APP_MAN_DIR
+ADMIN_MAN_SUFFIX
+DRIVER_MAN_SUFFIX
+MISC_MAN_SUFFIX
+FILE_MAN_SUFFIX
+LIB_MAN_SUFFIX
+APP_MAN_SUFFIX
+SED
+host_os
+host_vendor
+host_cpu
+host
+build_os
+build_vendor
+build_cpu
+build
+INSTALL_CMD
+PKG_CONFIG_LIBDIR
+PKG_CONFIG_PATH
+PKG_CONFIG
+CHANGELOG_CMD
+STRICT_CFLAGS
+CWARNFLAGS
+BASE_CFLAGS
+EGREP
+GREP
+CPP
+am__fastdepCC_FALSE
+am__fastdepCC_TRUE
+CCDEPMODE
+am__nodep
+AMDEPBACKSLASH
+AMDEP_FALSE
+AMDEP_TRUE
+am__quote
+am__include
+DEPDIR
+OBJEXT
+EXEEXT
+ac_ct_CC
+CPPFLAGS
+LDFLAGS
+CFLAGS
+CC
+MAINT
+MAINTAINER_MODE_FALSE
+MAINTAINER_MODE_TRUE
+AM_BACKSLASH
+AM_DEFAULT_VERBOSITY
+AM_DEFAULT_V
+AM_V
+am__untar
+am__tar
+AMTAR
+am__leading_dot
+SET_MAKE
+AWK
+mkdir_p
+MKDIR_P
+INSTALL_STRIP_PROGRAM
+STRIP
+install_sh
+MAKEINFO
+AUTOHEADER
+AUTOMAKE
+AUTOCONF
+ACLOCAL
+VERSION
+PACKAGE
+CYGPATH_W
+am__isrc
+INSTALL_DATA
+INSTALL_SCRIPT
+INSTALL_PROGRAM
+target_alias
+host_alias
+build_alias
+LIBS
+ECHO_T
+ECHO_N
+ECHO_C
+DEFS
+mandir
+localedir
+libdir
+psdir
+pdfdir
+dvidir
+htmldir
+infodir
+docdir
+oldincludedir
+includedir
+localstatedir
+sharedstatedir
+sysconfdir
+datadir
+datarootdir
+libexecdir
+sbindir
+bindir
+program_transform_name
+prefix
+exec_prefix
+PACKAGE_URL
+PACKAGE_BUGREPORT
+PACKAGE_STRING
+PACKAGE_VERSION
+PACKAGE_TARNAME
+PACKAGE_NAME
+PATH_SEPARATOR
+SHELL'
+ac_subst_files=''
+ac_user_opts='
+enable_option_checking
+enable_silent_rules
+enable_maintainer_mode
+enable_dependency_tracking
+enable_selective_werror
+enable_strict_compilation
+'
+      ac_precious_vars='build_alias
+host_alias
+target_alias
+CC
+CFLAGS
+LDFLAGS
+LIBS
+CPPFLAGS
+CPP
+PKG_CONFIG
+PKG_CONFIG_PATH
+PKG_CONFIG_LIBDIR'
+
+
+# Initialize some variables set by options.
+ac_init_help=
+ac_init_version=false
+ac_unrecognized_opts=
+ac_unrecognized_sep=
+# The variables have the same names as the options, with
+# dashes changed to underlines.
+cache_file=/dev/null
+exec_prefix=NONE
+no_create=
+no_recursion=
+prefix=NONE
+program_prefix=NONE
+program_suffix=NONE
+program_transform_name=s,x,x,
+silent=
+site=
+srcdir=
+verbose=
+x_includes=NONE
+x_libraries=NONE
+
+# Installation directory options.
+# These are left unexpanded so users can "make install exec_prefix=/foo"
+# and all the variables that are supposed to be based on exec_prefix
+# by default will actually change.
+# Use braces instead of parens because sh, perl, etc. also accept them.
+# (The list follows the same order as the GNU Coding Standards.)
+bindir='${exec_prefix}/bin'
+sbindir='${exec_prefix}/sbin'
+libexecdir='${exec_prefix}/libexec'
+datarootdir='${prefix}/share'
+datadir='${datarootdir}'
+sysconfdir='${prefix}/etc'
+sharedstatedir='${prefix}/com'
+localstatedir='${prefix}/var'
+includedir='${prefix}/include'
+oldincludedir='/usr/include'
+docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
+infodir='${datarootdir}/info'
+htmldir='${docdir}'
+dvidir='${docdir}'
+pdfdir='${docdir}'
+psdir='${docdir}'
+libdir='${exec_prefix}/lib'
+localedir='${datarootdir}/locale'
+mandir='${datarootdir}/man'
+
+ac_prev=
+ac_dashdash=
+for ac_option
+do
+  # If the previous option needs an argument, assign it.
+  if test -n "$ac_prev"; then
+    eval $ac_prev=\$ac_option
+    ac_prev=
+    continue
+  fi
+
+  case $ac_option in
+  *=?*) ac_optarg=`expr "X$ac_option" : '[^=]*=\(.*\)'` ;;
+  *=)   ac_optarg= ;;
+  *)    ac_optarg=yes ;;
+  esac
+
+  # Accept the important Cygnus configure options, so we can diagnose typos.
+
+  case $ac_dashdash$ac_option in
+  --)
+    ac_dashdash=yes ;;
+
+  -bindir | --bindir | --bindi | --bind | --bin | --bi)
+    ac_prev=bindir ;;
+  -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
+    bindir=$ac_optarg ;;
+
+  -build | --build | --buil | --bui | --bu)
+    ac_prev=build_alias ;;
+  -build=* | --build=* | --buil=* | --bui=* | --bu=*)
+    build_alias=$ac_optarg ;;
+
+  -cache-file | --cache-file | --cache-fil | --cache-fi \
+  | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
+    ac_prev=cache_file ;;
+  -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
+  | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
+    cache_file=$ac_optarg ;;
+
+  --config-cache | -C)
+    cache_file=config.cache ;;
+
+  -datadir | --datadir | --datadi | --datad)
+    ac_prev=datadir ;;
+  -datadir=* | --datadir=* | --datadi=* | --datad=*)
+    datadir=$ac_optarg ;;
+
+  -datarootdir | --datarootdir | --datarootdi | --datarootd | --dataroot \
+  | --dataroo | --dataro | --datar)
+    ac_prev=datarootdir ;;
+  -datarootdir=* | --datarootdir=* | --datarootdi=* | --datarootd=* \
+  | --dataroot=* | --dataroo=* | --dataro=* | --datar=*)
+    datarootdir=$ac_optarg ;;
+
+  -disable-* | --disable-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid feature name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"enable_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--disable-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval enable_$ac_useropt=no ;;
+
+  -docdir | --docdir | --docdi | --doc | --do)
+    ac_prev=docdir ;;
+  -docdir=* | --docdir=* | --docdi=* | --doc=* | --do=*)
+    docdir=$ac_optarg ;;
+
+  -dvidir | --dvidir | --dvidi | --dvid | --dvi | --dv)
+    ac_prev=dvidir ;;
+  -dvidir=* | --dvidir=* | --dvidi=* | --dvid=* | --dvi=* | --dv=*)
+    dvidir=$ac_optarg ;;
+
+  -enable-* | --enable-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid feature name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"enable_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--enable-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval enable_$ac_useropt=\$ac_optarg ;;
+
+  -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
+  | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
+  | --exec | --exe | --ex)
+    ac_prev=exec_prefix ;;
+  -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
+  | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
+  | --exec=* | --exe=* | --ex=*)
+    exec_prefix=$ac_optarg ;;
+
+  -gas | --gas | --ga | --g)
+    # Obsolete; use --with-gas.
+    with_gas=yes ;;
+
+  -help | --help | --hel | --he | -h)
+    ac_init_help=long ;;
+  -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
+    ac_init_help=recursive ;;
+  -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
+    ac_init_help=short ;;
+
+  -host | --host | --hos | --ho)
+    ac_prev=host_alias ;;
+  -host=* | --host=* | --hos=* | --ho=*)
+    host_alias=$ac_optarg ;;
+
+  -htmldir | --htmldir | --htmldi | --htmld | --html | --htm | --ht)
+    ac_prev=htmldir ;;
+  -htmldir=* | --htmldir=* | --htmldi=* | --htmld=* | --html=* | --htm=* \
+  | --ht=*)
+    htmldir=$ac_optarg ;;
+
+  -includedir | --includedir | --includedi | --included | --include \
+  | --includ | --inclu | --incl | --inc)
+    ac_prev=includedir ;;
+  -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
+  | --includ=* | --inclu=* | --incl=* | --inc=*)
+    includedir=$ac_optarg ;;
+
+  -infodir | --infodir | --infodi | --infod | --info | --inf)
+    ac_prev=infodir ;;
+  -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
+    infodir=$ac_optarg ;;
+
+  -libdir | --libdir | --libdi | --libd)
+    ac_prev=libdir ;;
+  -libdir=* | --libdir=* | --libdi=* | --libd=*)
+    libdir=$ac_optarg ;;
+
+  -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
+  | --libexe | --libex | --libe)
+    ac_prev=libexecdir ;;
+  -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
+  | --libexe=* | --libex=* | --libe=*)
+    libexecdir=$ac_optarg ;;
+
+  -localedir | --localedir | --localedi | --localed | --locale)
+    ac_prev=localedir ;;
+  -localedir=* | --localedir=* | --localedi=* | --localed=* | --locale=*)
+    localedir=$ac_optarg ;;
+
+  -localstatedir | --localstatedir | --localstatedi | --localstated \
+  | --localstate | --localstat | --localsta | --localst | --locals)
+    ac_prev=localstatedir ;;
+  -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
+  | --localstate=* | --localstat=* | --localsta=* | --localst=* | --locals=*)
+    localstatedir=$ac_optarg ;;
+
+  -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
+    ac_prev=mandir ;;
+  -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
+    mandir=$ac_optarg ;;
+
+  -nfp | --nfp | --nf)
+    # Obsolete; use --without-fp.
+    with_fp=no ;;
+
+  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
+  | --no-cr | --no-c | -n)
+    no_create=yes ;;
+
+  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
+  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
+    no_recursion=yes ;;
+
+  -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
+  | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
+  | --oldin | --oldi | --old | --ol | --o)
+    ac_prev=oldincludedir ;;
+  -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
+  | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
+  | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
+    oldincludedir=$ac_optarg ;;
+
+  -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
+    ac_prev=prefix ;;
+  -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
+    prefix=$ac_optarg ;;
+
+  -program-prefix | --program-prefix | --program-prefi | --program-pref \
+  | --program-pre | --program-pr | --program-p)
+    ac_prev=program_prefix ;;
+  -program-prefix=* | --program-prefix=* | --program-prefi=* \
+  | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
+    program_prefix=$ac_optarg ;;
+
+  -program-suffix | --program-suffix | --program-suffi | --program-suff \
+  | --program-suf | --program-su | --program-s)
+    ac_prev=program_suffix ;;
+  -program-suffix=* | --program-suffix=* | --program-suffi=* \
+  | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
+    program_suffix=$ac_optarg ;;
+
+  -program-transform-name | --program-transform-name \
+  | --program-transform-nam | --program-transform-na \
+  | --program-transform-n | --program-transform- \
+  | --program-transform | --program-transfor \
+  | --program-transfo | --program-transf \
+  | --program-trans | --program-tran \
+  | --progr-tra | --program-tr | --program-t)
+    ac_prev=program_transform_name ;;
+  -program-transform-name=* | --program-transform-name=* \
+  | --program-transform-nam=* | --program-transform-na=* \
+  | --program-transform-n=* | --program-transform-=* \
+  | --program-transform=* | --program-transfor=* \
+  | --program-transfo=* | --program-transf=* \
+  | --program-trans=* | --program-tran=* \
+  | --progr-tra=* | --program-tr=* | --program-t=*)
+    program_transform_name=$ac_optarg ;;
+
+  -pdfdir | --pdfdir | --pdfdi | --pdfd | --pdf | --pd)
+    ac_prev=pdfdir ;;
+  -pdfdir=* | --pdfdir=* | --pdfdi=* | --pdfd=* | --pdf=* | --pd=*)
+    pdfdir=$ac_optarg ;;
+
+  -psdir | --psdir | --psdi | --psd | --ps)
+    ac_prev=psdir ;;
+  -psdir=* | --psdir=* | --psdi=* | --psd=* | --ps=*)
+    psdir=$ac_optarg ;;
+
+  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+  | -silent | --silent | --silen | --sile | --sil)
+    silent=yes ;;
+
+  -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
+    ac_prev=sbindir ;;
+  -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
+  | --sbi=* | --sb=*)
+    sbindir=$ac_optarg ;;
+
+  -sharedstatedir | --sharedstatedir | --sharedstatedi \
+  | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
+  | --sharedst | --shareds | --shared | --share | --shar \
+  | --sha | --sh)
+    ac_prev=sharedstatedir ;;
+  -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
+  | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
+  | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
+  | --sha=* | --sh=*)
+    sharedstatedir=$ac_optarg ;;
+
+  -site | --site | --sit)
+    ac_prev=site ;;
+  -site=* | --site=* | --sit=*)
+    site=$ac_optarg ;;
+
+  -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
+    ac_prev=srcdir ;;
+  -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
+    srcdir=$ac_optarg ;;
+
+  -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
+  | --syscon | --sysco | --sysc | --sys | --sy)
+    ac_prev=sysconfdir ;;
+  -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
+  | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
+    sysconfdir=$ac_optarg ;;
+
+  -target | --target | --targe | --targ | --tar | --ta | --t)
+    ac_prev=target_alias ;;
+  -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
+    target_alias=$ac_optarg ;;
+
+  -v | -verbose | --verbose | --verbos | --verbo | --verb)
+    verbose=yes ;;
+
+  -version | --version | --versio | --versi | --vers | -V)
+    ac_init_version=: ;;
+
+  -with-* | --with-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid package name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"with_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--with-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval with_$ac_useropt=\$ac_optarg ;;
+
+  -without-* | --without-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid package name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"with_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--without-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval with_$ac_useropt=no ;;
+
+  --x)
+    # Obsolete; use --with-x.
+    with_x=yes ;;
+
+  -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
+  | --x-incl | --x-inc | --x-in | --x-i)
+    ac_prev=x_includes ;;
+  -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
+  | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
+    x_includes=$ac_optarg ;;
+
+  -x-libraries | --x-libraries | --x-librarie | --x-librari \
+  | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
+    ac_prev=x_libraries ;;
+  -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
+  | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
+    x_libraries=$ac_optarg ;;
+
+  -*) as_fn_error $? "unrecognized option: \`$ac_option'
+Try \`$0 --help' for more information"
+    ;;
+
+  *=*)
+    ac_envvar=`expr "x$ac_option" : 'x\([^=]*\)='`
+    # Reject names that are not valid shell variable names.
+    case $ac_envvar in #(
+      '' | [0-9]* | *[!_$as_cr_alnum]* )
+      as_fn_error $? "invalid variable name: \`$ac_envvar'" ;;
+    esac
+    eval $ac_envvar=\$ac_optarg
+    export $ac_envvar ;;
+
+  *)
+    # FIXME: should be removed in autoconf 3.0.
+    $as_echo "$as_me: WARNING: you should use --build, --host, --target" >&2
+    expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
+      $as_echo "$as_me: WARNING: invalid host type: $ac_option" >&2
+    : "${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}"
+    ;;
+
+  esac
+done
+
+if test -n "$ac_prev"; then
+  ac_option=--`echo $ac_prev | sed 's/_/-/g'`
+  as_fn_error $? "missing argument to $ac_option"
+fi
+
+if test -n "$ac_unrecognized_opts"; then
+  case $enable_option_checking in
+    no) ;;
+    fatal) as_fn_error $? "unrecognized options: $ac_unrecognized_opts" ;;
+    *)     $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
+  esac
+fi
+
+# Check all directory arguments for consistency.
+for ac_var in	exec_prefix prefix bindir sbindir libexecdir datarootdir \
+		datadir sysconfdir sharedstatedir localstatedir includedir \
+		oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
+		libdir localedir mandir
+do
+  eval ac_val=\$$ac_var
+  # Remove trailing slashes.
+  case $ac_val in
+    */ )
+      ac_val=`expr "X$ac_val" : 'X\(.*[^/]\)' \| "X$ac_val" : 'X\(.*\)'`
+      eval $ac_var=\$ac_val;;
+  esac
+  # Be sure to have absolute directory names.
+  case $ac_val in
+    [\\/$]* | ?:[\\/]* )  continue;;
+    NONE | '' ) case $ac_var in *prefix ) continue;; esac;;
+  esac
+  as_fn_error $? "expected an absolute directory name for --$ac_var: $ac_val"
+done
+
+# There might be people who depend on the old broken behavior: `$host'
+# used to hold the argument of --host etc.
+# FIXME: To remove some day.
+build=$build_alias
+host=$host_alias
+target=$target_alias
+
+# FIXME: To remove some day.
+if test "x$host_alias" != x; then
+  if test "x$build_alias" = x; then
+    cross_compiling=maybe
+  elif test "x$build_alias" != "x$host_alias"; then
+    cross_compiling=yes
+  fi
+fi
+
+ac_tool_prefix=
+test -n "$host_alias" && ac_tool_prefix=$host_alias-
+
+test "$silent" = yes && exec 6>/dev/null
+
+
+ac_pwd=`pwd` && test -n "$ac_pwd" &&
+ac_ls_di=`ls -di .` &&
+ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` ||
+  as_fn_error $? "working directory cannot be determined"
+test "X$ac_ls_di" = "X$ac_pwd_ls_di" ||
+  as_fn_error $? "pwd does not report name of working directory"
+
+
+# Find the source files, if location was not specified.
+if test -z "$srcdir"; then
+  ac_srcdir_defaulted=yes
+  # Try the directory containing this script, then the parent directory.
+  ac_confdir=`$as_dirname -- "$as_myself" ||
+$as_expr X"$as_myself" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_myself" : 'X\(//\)[^/]' \| \
+	 X"$as_myself" : 'X\(//\)$' \| \
+	 X"$as_myself" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_myself" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+  srcdir=$ac_confdir
+  if test ! -r "$srcdir/$ac_unique_file"; then
+    srcdir=..
+  fi
+else
+  ac_srcdir_defaulted=no
+fi
+if test ! -r "$srcdir/$ac_unique_file"; then
+  test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
+  as_fn_error $? "cannot find sources ($ac_unique_file) in $srcdir"
+fi
+ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
+ac_abs_confdir=`(
+	cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error $? "$ac_msg"
+	pwd)`
+# When building in place, set srcdir=.
+if test "$ac_abs_confdir" = "$ac_pwd"; then
+  srcdir=.
+fi
+# Remove unnecessary trailing slashes from srcdir.
+# Double slashes in file names in object file debugging info
+# mess up M-x gdb in Emacs.
+case $srcdir in
+*/) srcdir=`expr "X$srcdir" : 'X\(.*[^/]\)' \| "X$srcdir" : 'X\(.*\)'`;;
+esac
+for ac_var in $ac_precious_vars; do
+  eval ac_env_${ac_var}_set=\${${ac_var}+set}
+  eval ac_env_${ac_var}_value=\$${ac_var}
+  eval ac_cv_env_${ac_var}_set=\${${ac_var}+set}
+  eval ac_cv_env_${ac_var}_value=\$${ac_var}
+done
+
+#
+# Report the --help message.
+#
+if test "$ac_init_help" = "long"; then
+  # Omit some internal or obsolete options to make the list less imposing.
+  # This message is too long to be a string in the A/UX 3.1 sh.
+  cat <<_ACEOF
+\`configure' configures PresentProto 1.0 to adapt to many kinds of systems.
+
+Usage: $0 [OPTION]... [VAR=VALUE]...
+
+To assign environment variables (e.g., CC, CFLAGS...), specify them as
+VAR=VALUE.  See below for descriptions of some of the useful variables.
+
+Defaults for the options are specified in brackets.
+
+Configuration:
+  -h, --help              display this help and exit
+      --help=short        display options specific to this package
+      --help=recursive    display the short help of all the included packages
+  -V, --version           display version information and exit
+  -q, --quiet, --silent   do not print \`checking ...' messages
+      --cache-file=FILE   cache test results in FILE [disabled]
+  -C, --config-cache      alias for \`--cache-file=config.cache'
+  -n, --no-create         do not create output files
+      --srcdir=DIR        find the sources in DIR [configure dir or \`..']
+
+Installation directories:
+  --prefix=PREFIX         install architecture-independent files in PREFIX
+                          [$ac_default_prefix]
+  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
+                          [PREFIX]
+
+By default, \`make install' will install all the files in
+\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
+an installation prefix other than \`$ac_default_prefix' using \`--prefix',
+for instance \`--prefix=\$HOME'.
+
+For better control, use the options below.
+
+Fine tuning of the installation directories:
+  --bindir=DIR            user executables [EPREFIX/bin]
+  --sbindir=DIR           system admin executables [EPREFIX/sbin]
+  --libexecdir=DIR        program executables [EPREFIX/libexec]
+  --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
+  --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
+  --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
+  --libdir=DIR            object code libraries [EPREFIX/lib]
+  --includedir=DIR        C header files [PREFIX/include]
+  --oldincludedir=DIR     C header files for non-gcc [/usr/include]
+  --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
+  --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
+  --infodir=DIR           info documentation [DATAROOTDIR/info]
+  --localedir=DIR         locale-dependent data [DATAROOTDIR/locale]
+  --mandir=DIR            man documentation [DATAROOTDIR/man]
+  --docdir=DIR            documentation root [DATAROOTDIR/doc/presentproto]
+  --htmldir=DIR           html documentation [DOCDIR]
+  --dvidir=DIR            dvi documentation [DOCDIR]
+  --pdfdir=DIR            pdf documentation [DOCDIR]
+  --psdir=DIR             ps documentation [DOCDIR]
+_ACEOF
+
+  cat <<\_ACEOF
+
+Program names:
+  --program-prefix=PREFIX            prepend PREFIX to installed program names
+  --program-suffix=SUFFIX            append SUFFIX to installed program names
+  --program-transform-name=PROGRAM   run sed PROGRAM on installed program names
+
+System types:
+  --build=BUILD     configure for building on BUILD [guessed]
+  --host=HOST       cross-compile to build programs to run on HOST [BUILD]
+_ACEOF
+fi
+
+if test -n "$ac_init_help"; then
+  case $ac_init_help in
+     short | recursive ) echo "Configuration of PresentProto 1.0:";;
+   esac
+  cat <<\_ACEOF
+
+Optional Features:
+  --disable-option-checking  ignore unrecognized --enable/--with options
+  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
+  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
+  --enable-silent-rules   less verbose build output (undo: "make V=1")
+  --disable-silent-rules  verbose build output (undo: "make V=0")
+  --enable-maintainer-mode
+                          enable make rules and dependencies not useful (and
+                          sometimes confusing) to the casual installer
+  --enable-dependency-tracking
+                          do not reject slow dependency extractors
+  --disable-dependency-tracking
+                          speeds up one-time build
+  --disable-selective-werror
+                          Turn off selective compiler errors. (default:
+                          enabled)
+  --enable-strict-compilation
+                          Enable all warnings from compiler and make them
+                          errors (default: disabled)
+
+Some influential environment variables:
+  CC          C compiler command
+  CFLAGS      C compiler flags
+  LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
+              nonstandard directory <lib dir>
+  LIBS        libraries to pass to the linker, e.g. -l<library>
+  CPPFLAGS    (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if
+              you have headers in a nonstandard directory <include dir>
+  CPP         C preprocessor
+  PKG_CONFIG  path to pkg-config utility
+  PKG_CONFIG_PATH
+              directories to add to pkg-config's search path
+  PKG_CONFIG_LIBDIR
+              path overriding pkg-config's built-in search path
+
+Use these variables to override the choices made by `configure' or to help
+it to find libraries and programs with nonstandard names/locations.
+
+Report bugs to <https://bugs.freedesktop.org/enter_bug.cgi?product=xorg>.
+_ACEOF
+ac_status=$?
+fi
+
+if test "$ac_init_help" = "recursive"; then
+  # If there are subdirs, report their specific --help.
+  for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
+    test -d "$ac_dir" ||
+      { cd "$srcdir" && ac_pwd=`pwd` && srcdir=. && test -d "$ac_dir"; } ||
+      continue
+    ac_builddir=.
+
+case "$ac_dir" in
+.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
+*)
+  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
+  # A ".." for each directory in $ac_dir_suffix.
+  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  case $ac_top_builddir_sub in
+  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
+  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
+  esac ;;
+esac
+ac_abs_top_builddir=$ac_pwd
+ac_abs_builddir=$ac_pwd$ac_dir_suffix
+# for backward compatibility:
+ac_top_builddir=$ac_top_build_prefix
+
+case $srcdir in
+  .)  # We are building in place.
+    ac_srcdir=.
+    ac_top_srcdir=$ac_top_builddir_sub
+    ac_abs_top_srcdir=$ac_pwd ;;
+  [\\/]* | ?:[\\/]* )  # Absolute name.
+    ac_srcdir=$srcdir$ac_dir_suffix;
+    ac_top_srcdir=$srcdir
+    ac_abs_top_srcdir=$srcdir ;;
+  *) # Relative name.
+    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
+    ac_top_srcdir=$ac_top_build_prefix$srcdir
+    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
+esac
+ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
+
+    cd "$ac_dir" || { ac_status=$?; continue; }
+    # Check for guested configure.
+    if test -f "$ac_srcdir/configure.gnu"; then
+      echo &&
+      $SHELL "$ac_srcdir/configure.gnu" --help=recursive
+    elif test -f "$ac_srcdir/configure"; then
+      echo &&
+      $SHELL "$ac_srcdir/configure" --help=recursive
+    else
+      $as_echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2
+    fi || ac_status=$?
+    cd "$ac_pwd" || { ac_status=$?; break; }
+  done
+fi
+
+test -n "$ac_init_help" && exit $ac_status
+if $ac_init_version; then
+  cat <<\_ACEOF
+PresentProto configure 1.0
+generated by GNU Autoconf 2.69
+
+Copyright (C) 2012 Free Software Foundation, Inc.
+This configure script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it.
+_ACEOF
+  exit
+fi
+
+## ------------------------ ##
+## Autoconf initialization. ##
+## ------------------------ ##
+
+# ac_fn_c_try_compile LINENO
+# --------------------------
+# Try to compile conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext
+  if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_compile
+
+# ac_fn_c_check_decl LINENO SYMBOL VAR INCLUDES
+# ---------------------------------------------
+# Tests whether SYMBOL is declared in INCLUDES, setting cache variable VAR
+# accordingly.
+ac_fn_c_check_decl ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  as_decl_name=`echo $2|sed 's/ *(.*//'`
+  as_decl_use=`echo $2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $as_decl_name is declared" >&5
+$as_echo_n "checking whether $as_decl_name is declared... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+#ifndef $as_decl_name
+#ifdef __cplusplus
+  (void) $as_decl_use;
+#else
+  (void) $as_decl_name;
+#endif
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_decl
+
+# ac_fn_c_try_cpp LINENO
+# ----------------------
+# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_cpp ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } > conftest.i && {
+	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+    ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_cpp
+
+# ac_fn_c_try_run LINENO
+# ----------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded. Assumes
+# that executables *can* be run.
+ac_fn_c_try_run ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
+  { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: program exited with status $ac_status" >&5
+       $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+       ac_retval=$ac_status
+fi
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_run
+
+# ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
+# -------------------------------------------------------
+# Tests whether HEADER exists and can be compiled using the include files in
+# INCLUDES, setting the cache variable VAR accordingly.
+ac_fn_c_check_header_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+#include <$2>
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_header_compile
+
+# ac_fn_c_try_link LINENO
+# -----------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_link ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext conftest$ac_exeext
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 test -x conftest$ac_exeext
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
+  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
+  # interfere with the next link command; also delete a directory that is
+  # left behind by Apple's compiler.  We do this before executing the actions.
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_link
+cat >config.log <<_ACEOF
+This file contains any messages produced by compilers while
+running configure, to aid debugging if configure makes a mistake.
+
+It was created by PresentProto $as_me 1.0, which was
+generated by GNU Autoconf 2.69.  Invocation command line was
+
+  $ $0 $@
+
+_ACEOF
+exec 5>>config.log
+{
+cat <<_ASUNAME
+## --------- ##
+## Platform. ##
+## --------- ##
+
+hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
+/bin/uname -X     = `(/bin/uname -X) 2>/dev/null     || echo unknown`
+
+/bin/arch              = `(/bin/arch) 2>/dev/null              || echo unknown`
+/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null       || echo unknown`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
+/usr/bin/hostinfo      = `(/usr/bin/hostinfo) 2>/dev/null      || echo unknown`
+/bin/machine           = `(/bin/machine) 2>/dev/null           || echo unknown`
+/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null       || echo unknown`
+/bin/universe          = `(/bin/universe) 2>/dev/null          || echo unknown`
+
+_ASUNAME
+
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    $as_echo "PATH: $as_dir"
+  done
+IFS=$as_save_IFS
+
+} >&5
+
+cat >&5 <<_ACEOF
+
+
+## ----------- ##
+## Core tests. ##
+## ----------- ##
+
+_ACEOF
+
+
+# Keep a trace of the command line.
+# Strip out --no-create and --no-recursion so they do not pile up.
+# Strip out --silent because we don't want to record it for future runs.
+# Also quote any args containing shell meta-characters.
+# Make two passes to allow for proper duplicate-argument suppression.
+ac_configure_args=
+ac_configure_args0=
+ac_configure_args1=
+ac_must_keep_next=false
+for ac_pass in 1 2
+do
+  for ac_arg
+  do
+    case $ac_arg in
+    -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
+    -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+    | -silent | --silent | --silen | --sile | --sil)
+      continue ;;
+    *\'*)
+      ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    esac
+    case $ac_pass in
+    1) as_fn_append ac_configure_args0 " '$ac_arg'" ;;
+    2)
+      as_fn_append ac_configure_args1 " '$ac_arg'"
+      if test $ac_must_keep_next = true; then
+	ac_must_keep_next=false # Got value, back to normal.
+      else
+	case $ac_arg in
+	  *=* | --config-cache | -C | -disable-* | --disable-* \
+	  | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
+	  | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
+	  | -with-* | --with-* | -without-* | --without-* | --x)
+	    case "$ac_configure_args0 " in
+	      "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
+	    esac
+	    ;;
+	  -* ) ac_must_keep_next=true ;;
+	esac
+      fi
+      as_fn_append ac_configure_args " '$ac_arg'"
+      ;;
+    esac
+  done
+done
+{ ac_configure_args0=; unset ac_configure_args0;}
+{ ac_configure_args1=; unset ac_configure_args1;}
+
+# When interrupted or exit'd, cleanup temporary files, and complete
+# config.log.  We remove comments because anyway the quotes in there
+# would cause problems or look ugly.
+# WARNING: Use '\'' to represent an apostrophe within the trap.
+# WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
+trap 'exit_status=$?
+  # Save into config.log some information that might help in debugging.
+  {
+    echo
+
+    $as_echo "## ---------------- ##
+## Cache variables. ##
+## ---------------- ##"
+    echo
+    # The following way of writing the cache mishandles newlines in values,
+(
+  for ac_var in `(set) 2>&1 | sed -n '\''s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'\''`; do
+    eval ac_val=\$$ac_var
+    case $ac_val in #(
+    *${as_nl}*)
+      case $ac_var in #(
+      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+      esac
+      case $ac_var in #(
+      _ | IFS | as_nl) ;; #(
+      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
+      *) { eval $ac_var=; unset $ac_var;} ;;
+      esac ;;
+    esac
+  done
+  (set) 2>&1 |
+    case $as_nl`(ac_space='\'' '\''; set) 2>&1` in #(
+    *${as_nl}ac_space=\ *)
+      sed -n \
+	"s/'\''/'\''\\\\'\'''\''/g;
+	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\''\\2'\''/p"
+      ;; #(
+    *)
+      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
+      ;;
+    esac |
+    sort
+)
+    echo
+
+    $as_echo "## ----------------- ##
+## Output variables. ##
+## ----------------- ##"
+    echo
+    for ac_var in $ac_subst_vars
+    do
+      eval ac_val=\$$ac_var
+      case $ac_val in
+      *\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+      esac
+      $as_echo "$ac_var='\''$ac_val'\''"
+    done | sort
+    echo
+
+    if test -n "$ac_subst_files"; then
+      $as_echo "## ------------------- ##
+## File substitutions. ##
+## ------------------- ##"
+      echo
+      for ac_var in $ac_subst_files
+      do
+	eval ac_val=\$$ac_var
+	case $ac_val in
+	*\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+	esac
+	$as_echo "$ac_var='\''$ac_val'\''"
+      done | sort
+      echo
+    fi
+
+    if test -s confdefs.h; then
+      $as_echo "## ----------- ##
+## confdefs.h. ##
+## ----------- ##"
+      echo
+      cat confdefs.h
+      echo
+    fi
+    test "$ac_signal" != 0 &&
+      $as_echo "$as_me: caught signal $ac_signal"
+    $as_echo "$as_me: exit $exit_status"
+  } >&5
+  rm -f core *.core core.conftest.* &&
+    rm -f -r conftest* confdefs* conf$$* $ac_clean_files &&
+    exit $exit_status
+' 0
+for ac_signal in 1 2 13 15; do
+  trap 'ac_signal='$ac_signal'; as_fn_exit 1' $ac_signal
+done
+ac_signal=0
+
+# confdefs.h avoids OS command line length limits that DEFS can exceed.
+rm -f -r conftest* confdefs.h
+
+$as_echo "/* confdefs.h */" > confdefs.h
+
+# Predefined preprocessor variables.
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_NAME "$PACKAGE_NAME"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_TARNAME "$PACKAGE_TARNAME"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_VERSION "$PACKAGE_VERSION"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_STRING "$PACKAGE_STRING"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_URL "$PACKAGE_URL"
+_ACEOF
+
+
+# Let the site file select an alternate cache file if it wants to.
+# Prefer an explicitly selected file to automatically selected ones.
+ac_site_file1=NONE
+ac_site_file2=NONE
+if test -n "$CONFIG_SITE"; then
+  # We do not want a PATH search for config.site.
+  case $CONFIG_SITE in #((
+    -*)  ac_site_file1=./$CONFIG_SITE;;
+    */*) ac_site_file1=$CONFIG_SITE;;
+    *)   ac_site_file1=./$CONFIG_SITE;;
+  esac
+elif test "x$prefix" != xNONE; then
+  ac_site_file1=$prefix/share/config.site
+  ac_site_file2=$prefix/etc/config.site
+else
+  ac_site_file1=$ac_default_prefix/share/config.site
+  ac_site_file2=$ac_default_prefix/etc/config.site
+fi
+for ac_site_file in "$ac_site_file1" "$ac_site_file2"
+do
+  test "x$ac_site_file" = xNONE && continue
+  if test /dev/null != "$ac_site_file" && test -r "$ac_site_file"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
+$as_echo "$as_me: loading site script $ac_site_file" >&6;}
+    sed 's/^/| /' "$ac_site_file" >&5
+    . "$ac_site_file" \
+      || { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "failed to load site script $ac_site_file
+See \`config.log' for more details" "$LINENO" 5; }
+  fi
+done
+
+if test -r "$cache_file"; then
+  # Some versions of bash will fail to source /dev/null (special files
+  # actually), so we avoid doing that.  DJGPP emulates it as a regular file.
+  if test /dev/null != "$cache_file" && test -f "$cache_file"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
+$as_echo "$as_me: loading cache $cache_file" >&6;}
+    case $cache_file in
+      [\\/]* | ?:[\\/]* ) . "$cache_file";;
+      *)                      . "./$cache_file";;
+    esac
+  fi
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
+$as_echo "$as_me: creating cache $cache_file" >&6;}
+  >$cache_file
+fi
+
+# Check that the precious variables saved in the cache have kept the same
+# value.
+ac_cache_corrupted=false
+for ac_var in $ac_precious_vars; do
+  eval ac_old_set=\$ac_cv_env_${ac_var}_set
+  eval ac_new_set=\$ac_env_${ac_var}_set
+  eval ac_old_val=\$ac_cv_env_${ac_var}_value
+  eval ac_new_val=\$ac_env_${ac_var}_value
+  case $ac_old_set,$ac_new_set in
+    set,)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
+$as_echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
+      ac_cache_corrupted=: ;;
+    ,set)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
+$as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
+      ac_cache_corrupted=: ;;
+    ,);;
+    *)
+      if test "x$ac_old_val" != "x$ac_new_val"; then
+	# differences in whitespace do not lead to failure.
+	ac_old_val_w=`echo x $ac_old_val`
+	ac_new_val_w=`echo x $ac_new_val`
+	if test "$ac_old_val_w" != "$ac_new_val_w"; then
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
+$as_echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
+	  ac_cache_corrupted=:
+	else
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
+$as_echo "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
+	  eval $ac_var=\$ac_old_val
+	fi
+	{ $as_echo "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
+$as_echo "$as_me:   former value:  \`$ac_old_val'" >&2;}
+	{ $as_echo "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
+$as_echo "$as_me:   current value: \`$ac_new_val'" >&2;}
+      fi;;
+  esac
+  # Pass precious variables to config.status.
+  if test "$ac_new_set" = set; then
+    case $ac_new_val in
+    *\'*) ac_arg=$ac_var=`$as_echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
+    *) ac_arg=$ac_var=$ac_new_val ;;
+    esac
+    case " $ac_configure_args " in
+      *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
+      *) as_fn_append ac_configure_args " '$ac_arg'" ;;
+    esac
+  fi
+done
+if $ac_cache_corrupted; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+  { $as_echo "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
+$as_echo "$as_me: error: changes in the environment can compromise the build" >&2;}
+  as_fn_error $? "run \`make distclean' and/or \`rm $cache_file' and start over" "$LINENO" 5
+fi
+## -------------------- ##
+## Main body of script. ##
+## -------------------- ##
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+am__api_version='1.13'
+
+ac_aux_dir=
+for ac_dir in "$srcdir" "$srcdir/.." "$srcdir/../.."; do
+  if test -f "$ac_dir/install-sh"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install-sh -c"
+    break
+  elif test -f "$ac_dir/install.sh"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install.sh -c"
+    break
+  elif test -f "$ac_dir/shtool"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/shtool install -c"
+    break
+  fi
+done
+if test -z "$ac_aux_dir"; then
+  as_fn_error $? "cannot find install-sh, install.sh, or shtool in \"$srcdir\" \"$srcdir/..\" \"$srcdir/../..\"" "$LINENO" 5
+fi
+
+# These three variables are undocumented and unsupported,
+# and are intended to be withdrawn in a future Autoconf release.
+# They can cause serious problems if a builder's source tree is in a directory
+# whose full name contains unusual characters.
+ac_config_guess="$SHELL $ac_aux_dir/config.guess"  # Please don't use this var.
+ac_config_sub="$SHELL $ac_aux_dir/config.sub"  # Please don't use this var.
+ac_configure="$SHELL $ac_aux_dir/configure"  # Please don't use this var.
+
+
+# Find a good install program.  We prefer a C program (faster),
+# so one script is as good as another.  But avoid the broken or
+# incompatible versions:
+# SysV /etc/install, /usr/sbin/install
+# SunOS /usr/etc/install
+# IRIX /sbin/install
+# AIX /bin/install
+# AmigaOS /C/install, which installs bootblocks on floppy discs
+# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
+# AFS /usr/afsws/bin/install, which mishandles nonexistent args
+# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
+# OS/2's system install, which has a completely different semantic
+# ./install, which can be erroneously created by make from ./install.sh.
+# Reject install programs that cannot install multiple files.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5
+$as_echo_n "checking for a BSD-compatible install... " >&6; }
+if test -z "$INSTALL"; then
+if ${ac_cv_path_install+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    # Account for people who put trailing slashes in PATH elements.
+case $as_dir/ in #((
+  ./ | .// | /[cC]/* | \
+  /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
+  ?:[\\/]os2[\\/]install[\\/]* | ?:[\\/]OS2[\\/]INSTALL[\\/]* | \
+  /usr/ucb/* ) ;;
+  *)
+    # OSF1 and SCO ODT 3.0 have their own names for install.
+    # Don't use installbsd from OSF since it installs stuff as root
+    # by default.
+    for ac_prog in ginstall scoinst install; do
+      for ac_exec_ext in '' $ac_executable_extensions; do
+	if as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
+	  if test $ac_prog = install &&
+	    grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+	    # AIX install.  It has an incompatible calling convention.
+	    :
+	  elif test $ac_prog = install &&
+	    grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+	    # program-specific install script used by HP pwplus--don't use.
+	    :
+	  else
+	    rm -rf conftest.one conftest.two conftest.dir
+	    echo one > conftest.one
+	    echo two > conftest.two
+	    mkdir conftest.dir
+	    if "$as_dir/$ac_prog$ac_exec_ext" -c conftest.one conftest.two "`pwd`/conftest.dir" &&
+	      test -s conftest.one && test -s conftest.two &&
+	      test -s conftest.dir/conftest.one &&
+	      test -s conftest.dir/conftest.two
+	    then
+	      ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c"
+	      break 3
+	    fi
+	  fi
+	fi
+      done
+    done
+    ;;
+esac
+
+  done
+IFS=$as_save_IFS
+
+rm -rf conftest.one conftest.two conftest.dir
+
+fi
+  if test "${ac_cv_path_install+set}" = set; then
+    INSTALL=$ac_cv_path_install
+  else
+    # As a last resort, use the slow shell script.  Don't cache a
+    # value for INSTALL within a source directory, because that will
+    # break other packages using the cache if that directory is
+    # removed, or if the value is a relative name.
+    INSTALL=$ac_install_sh
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5
+$as_echo "$INSTALL" >&6; }
+
+# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
+# It thinks the first close brace ends the variable substitution.
+test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
+
+test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
+
+test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether build environment is sane" >&5
+$as_echo_n "checking whether build environment is sane... " >&6; }
+# Reject unsafe characters in $srcdir or the absolute working directory
+# name.  Accept space and tab only in the latter.
+am_lf='
+'
+case `pwd` in
+  *[\\\"\#\$\&\'\`$am_lf]*)
+    as_fn_error $? "unsafe absolute working directory name" "$LINENO" 5;;
+esac
+case $srcdir in
+  *[\\\"\#\$\&\'\`$am_lf\ \	]*)
+    as_fn_error $? "unsafe srcdir value: '$srcdir'" "$LINENO" 5;;
+esac
+
+# Do 'set' in a subshell so we don't clobber the current shell's
+# arguments.  Must try -L first in case configure is actually a
+# symlink; some systems play weird games with the mod time of symlinks
+# (eg FreeBSD returns the mod time of the symlink's containing
+# directory).
+if (
+   am_has_slept=no
+   for am_try in 1 2; do
+     echo "timestamp, slept: $am_has_slept" > conftest.file
+     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
+     if test "$*" = "X"; then
+	# -L didn't work.
+	set X `ls -t "$srcdir/configure" conftest.file`
+     fi
+     if test "$*" != "X $srcdir/configure conftest.file" \
+	&& test "$*" != "X conftest.file $srcdir/configure"; then
+
+	# If neither matched, then we have a broken ls.  This can happen
+	# if, for instance, CONFIG_SHELL is bash and it inherits a
+	# broken ls alias from the environment.  This has actually
+	# happened.  Such a system could not be considered "sane".
+	as_fn_error $? "ls -t appears to fail.  Make sure there is not a broken
+  alias in your environment" "$LINENO" 5
+     fi
+     if test "$2" = conftest.file || test $am_try -eq 2; then
+       break
+     fi
+     # Just in case.
+     sleep 1
+     am_has_slept=yes
+   done
+   test "$2" = conftest.file
+   )
+then
+   # Ok.
+   :
+else
+   as_fn_error $? "newly created file is older than distributed files!
+Check your system clock" "$LINENO" 5
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+# If we didn't sleep, we still need to ensure time stamps of config.status and
+# generated files are strictly newer.
+am_sleep_pid=
+if grep 'slept: no' conftest.file >/dev/null 2>&1; then
+  ( sleep 1 ) &
+  am_sleep_pid=$!
+fi
+
+rm -f conftest.file
+
+test "$program_prefix" != NONE &&
+  program_transform_name="s&^&$program_prefix&;$program_transform_name"
+# Use a double $ so make ignores it.
+test "$program_suffix" != NONE &&
+  program_transform_name="s&\$&$program_suffix&;$program_transform_name"
+# Double any \ or $.
+# By default was `s,x,x', remove it if useless.
+ac_script='s/[\\$]/&&/g;s/;s,x,x,$//'
+program_transform_name=`$as_echo "$program_transform_name" | sed "$ac_script"`
+
+# expand $ac_aux_dir to an absolute path
+am_aux_dir=`cd $ac_aux_dir && pwd`
+
+if test x"${MISSING+set}" != xset; then
+  case $am_aux_dir in
+  *\ * | *\	*)
+    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
+  *)
+    MISSING="\${SHELL} $am_aux_dir/missing" ;;
+  esac
+fi
+# Use eval to expand $SHELL
+if eval "$MISSING --is-lightweight"; then
+  am_missing_run="$MISSING "
+else
+  am_missing_run=
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: 'missing' script is too old or missing" >&5
+$as_echo "$as_me: WARNING: 'missing' script is too old or missing" >&2;}
+fi
+
+if test x"${install_sh}" != xset; then
+  case $am_aux_dir in
+  *\ * | *\	*)
+    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
+  *)
+    install_sh="\${SHELL} $am_aux_dir/install-sh"
+  esac
+fi
+
+# Installed binaries are usually stripped using 'strip' when the user
+# run "make install-strip".  However 'strip' might not be the right
+# tool to use in cross-compilation environments, therefore Automake
+# will honor the 'STRIP' environment variable to overrule this program.
+if test "$cross_compiling" != no; then
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
+set dummy ${ac_tool_prefix}strip; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_STRIP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$STRIP"; then
+  ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_STRIP="${ac_tool_prefix}strip"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+STRIP=$ac_cv_prog_STRIP
+if test -n "$STRIP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
+$as_echo "$STRIP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_STRIP"; then
+  ac_ct_STRIP=$STRIP
+  # Extract the first word of "strip", so it can be a program name with args.
+set dummy strip; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_STRIP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_STRIP"; then
+  ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_STRIP="strip"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
+if test -n "$ac_ct_STRIP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5
+$as_echo "$ac_ct_STRIP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_STRIP" = x; then
+    STRIP=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    STRIP=$ac_ct_STRIP
+  fi
+else
+  STRIP="$ac_cv_prog_STRIP"
+fi
+
+fi
+INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a thread-safe mkdir -p" >&5
+$as_echo_n "checking for a thread-safe mkdir -p... " >&6; }
+if test -z "$MKDIR_P"; then
+  if ${ac_cv_path_mkdir+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/opt/sfw/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in mkdir gmkdir; do
+	 for ac_exec_ext in '' $ac_executable_extensions; do
+	   as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext" || continue
+	   case `"$as_dir/$ac_prog$ac_exec_ext" --version 2>&1` in #(
+	     'mkdir (GNU coreutils) '* | \
+	     'mkdir (coreutils) '* | \
+	     'mkdir (fileutils) '4.1*)
+	       ac_cv_path_mkdir=$as_dir/$ac_prog$ac_exec_ext
+	       break 3;;
+	   esac
+	 done
+       done
+  done
+IFS=$as_save_IFS
+
+fi
+
+  test -d ./--version && rmdir ./--version
+  if test "${ac_cv_path_mkdir+set}" = set; then
+    MKDIR_P="$ac_cv_path_mkdir -p"
+  else
+    # As a last resort, use the slow shell script.  Don't cache a
+    # value for MKDIR_P within a source directory, because that will
+    # break other packages using the cache if that directory is
+    # removed, or if the value is a relative name.
+    MKDIR_P="$ac_install_sh -d"
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $MKDIR_P" >&5
+$as_echo "$MKDIR_P" >&6; }
+
+for ac_prog in gawk mawk nawk awk
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_AWK+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$AWK"; then
+  ac_cv_prog_AWK="$AWK" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_AWK="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+AWK=$ac_cv_prog_AWK
+if test -n "$AWK"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AWK" >&5
+$as_echo "$AWK" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$AWK" && break
+done
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} sets \$(MAKE)" >&5
+$as_echo_n "checking whether ${MAKE-make} sets \$(MAKE)... " >&6; }
+set x ${MAKE-make}
+ac_make=`$as_echo "$2" | sed 's/+/p/g; s/[^a-zA-Z0-9_]/_/g'`
+if eval \${ac_cv_prog_make_${ac_make}_set+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.make <<\_ACEOF
+SHELL = /bin/sh
+all:
+	@echo '@@@%%%=$(MAKE)=@@@%%%'
+_ACEOF
+# GNU make sometimes prints "make[1]: Entering ...", which would confuse us.
+case `${MAKE-make} -f conftest.make 2>/dev/null` in
+  *@@@%%%=?*=@@@%%%*)
+    eval ac_cv_prog_make_${ac_make}_set=yes;;
+  *)
+    eval ac_cv_prog_make_${ac_make}_set=no;;
+esac
+rm -f conftest.make
+fi
+if eval test \$ac_cv_prog_make_${ac_make}_set = yes; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+  SET_MAKE=
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+  SET_MAKE="MAKE=${MAKE-make}"
+fi
+
+rm -rf .tst 2>/dev/null
+mkdir .tst 2>/dev/null
+if test -d .tst; then
+  am__leading_dot=.
+else
+  am__leading_dot=_
+fi
+rmdir .tst 2>/dev/null
+
+# Check whether --enable-silent-rules was given.
+if test "${enable_silent_rules+set}" = set; then :
+  enableval=$enable_silent_rules;
+fi
+
+case $enable_silent_rules in # (((
+  yes) AM_DEFAULT_VERBOSITY=0;;
+   no) AM_DEFAULT_VERBOSITY=1;;
+    *) AM_DEFAULT_VERBOSITY=1;;
+esac
+am_make=${MAKE-make}
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $am_make supports nested variables" >&5
+$as_echo_n "checking whether $am_make supports nested variables... " >&6; }
+if ${am_cv_make_support_nested_variables+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if $as_echo 'TRUE=$(BAR$(V))
+BAR0=false
+BAR1=true
+V=1
+am__doit:
+	@$(TRUE)
+.PHONY: am__doit' | $am_make -f - >/dev/null 2>&1; then
+  am_cv_make_support_nested_variables=yes
+else
+  am_cv_make_support_nested_variables=no
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_make_support_nested_variables" >&5
+$as_echo "$am_cv_make_support_nested_variables" >&6; }
+if test $am_cv_make_support_nested_variables = yes; then
+    AM_V='$(V)'
+  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
+else
+  AM_V=$AM_DEFAULT_VERBOSITY
+  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
+fi
+AM_BACKSLASH='\'
+
+if test "`cd $srcdir && pwd`" != "`pwd`"; then
+  # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
+  # is not polluted with repeated "-I."
+  am__isrc=' -I$(srcdir)'
+  # test to see if srcdir already configured
+  if test -f $srcdir/config.status; then
+    as_fn_error $? "source directory already configured; run \"make distclean\" there first" "$LINENO" 5
+  fi
+fi
+
+# test whether we have cygpath
+if test -z "$CYGPATH_W"; then
+  if (cygpath --version) >/dev/null 2>/dev/null; then
+    CYGPATH_W='cygpath -w'
+  else
+    CYGPATH_W=echo
+  fi
+fi
+
+
+# Define the identity of the package.
+ PACKAGE='presentproto'
+ VERSION='1.0'
+
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE "$PACKAGE"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define VERSION "$VERSION"
+_ACEOF
+
+# Some tools Automake needs.
+
+ACLOCAL=${ACLOCAL-"${am_missing_run}aclocal-${am__api_version}"}
+
+
+AUTOCONF=${AUTOCONF-"${am_missing_run}autoconf"}
+
+
+AUTOMAKE=${AUTOMAKE-"${am_missing_run}automake-${am__api_version}"}
+
+
+AUTOHEADER=${AUTOHEADER-"${am_missing_run}autoheader"}
+
+
+MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"}
+
+# For better backward compatibility.  To be removed once Automake 1.9.x
+# dies out for good.  For more background, see:
+# <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
+# <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
+mkdir_p='$(MKDIR_P)'
+
+# We need awk for the "check" target.  The system "awk" is bad on
+# some platforms.
+# Always define AMTAR for backward compatibility.  Yes, it's still used
+# in the wild :-(  We should find a proper way to deprecate it ...
+AMTAR='$${TAR-tar}'
+
+
+# We'll loop over all known methods to create a tar archive until one works.
+_am_tools='gnutar  pax cpio none'
+
+am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable maintainer-specific portions of Makefiles" >&5
+$as_echo_n "checking whether to enable maintainer-specific portions of Makefiles... " >&6; }
+    # Check whether --enable-maintainer-mode was given.
+if test "${enable_maintainer_mode+set}" = set; then :
+  enableval=$enable_maintainer_mode; USE_MAINTAINER_MODE=$enableval
+else
+  USE_MAINTAINER_MODE=no
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $USE_MAINTAINER_MODE" >&5
+$as_echo "$USE_MAINTAINER_MODE" >&6; }
+   if test $USE_MAINTAINER_MODE = yes; then
+  MAINTAINER_MODE_TRUE=
+  MAINTAINER_MODE_FALSE='#'
+else
+  MAINTAINER_MODE_TRUE='#'
+  MAINTAINER_MODE_FALSE=
+fi
+
+  MAINT=$MAINTAINER_MODE_TRUE
+
+
+
+# Require xorg-macros: XORG_DEFAULT_OPTIONS
+
+
+
+
+
+
+
+
+
+
+
+DEPDIR="${am__leading_dot}deps"
+
+ac_config_commands="$ac_config_commands depfiles"
+
+
+am_make=${MAKE-make}
+cat > confinc << 'END'
+am__doit:
+	@echo this is the am__doit target
+.PHONY: am__doit
+END
+# If we don't find an include directive, just comment out the code.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for style of include used by $am_make" >&5
+$as_echo_n "checking for style of include used by $am_make... " >&6; }
+am__include="#"
+am__quote=
+_am_result=none
+# First try GNU make style include.
+echo "include confinc" > confmf
+# Ignore all kinds of additional output from 'make'.
+case `$am_make -s -f confmf 2> /dev/null` in #(
+*the\ am__doit\ target*)
+  am__include=include
+  am__quote=
+  _am_result=GNU
+  ;;
+esac
+# Now try BSD make style include.
+if test "$am__include" = "#"; then
+   echo '.include "confinc"' > confmf
+   case `$am_make -s -f confmf 2> /dev/null` in #(
+   *the\ am__doit\ target*)
+     am__include=.include
+     am__quote="\""
+     _am_result=BSD
+     ;;
+   esac
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $_am_result" >&5
+$as_echo "$_am_result" >&6; }
+rm -f confinc confmf
+
+# Check whether --enable-dependency-tracking was given.
+if test "${enable_dependency_tracking+set}" = set; then :
+  enableval=$enable_dependency_tracking;
+fi
+
+if test "x$enable_dependency_tracking" != xno; then
+  am_depcomp="$ac_aux_dir/depcomp"
+  AMDEPBACKSLASH='\'
+  am__nodep='_no'
+fi
+ if test "x$enable_dependency_tracking" != xno; then
+  AMDEP_TRUE=
+  AMDEP_FALSE='#'
+else
+  AMDEP_TRUE='#'
+  AMDEP_FALSE=
+fi
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}gcc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}gcc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+  ac_ct_CC=$CC
+  # Extract the first word of "gcc", so it can be a program name with args.
+set dummy gcc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="gcc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+$as_echo "$ac_ct_CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+else
+  CC="$ac_cv_prog_CC"
+fi
+
+if test -z "$CC"; then
+          if test -n "$ac_tool_prefix"; then
+    # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}cc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}cc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  fi
+fi
+if test -z "$CC"; then
+  # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+  ac_prog_rejected=no
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
+       ac_prog_rejected=yes
+       continue
+     fi
+    ac_cv_prog_CC="cc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+if test $ac_prog_rejected = yes; then
+  # We found a bogon in the path, so make sure we never use it.
+  set dummy $ac_cv_prog_CC
+  shift
+  if test $# != 0; then
+    # We chose a different compiler from the bogus one.
+    # However, it has the same basename, so the bogon will be chosen
+    # first if we set CC to just the basename; use the full file name.
+    shift
+    ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
+  fi
+fi
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$CC"; then
+  if test -n "$ac_tool_prefix"; then
+  for ac_prog in cl.exe
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$CC" && break
+  done
+fi
+if test -z "$CC"; then
+  ac_ct_CC=$CC
+  for ac_prog in cl.exe
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+$as_echo "$ac_ct_CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_CC" && break
+done
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+fi
+
+fi
+
+
+test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "no acceptable C compiler found in \$PATH
+See \`config.log' for more details" "$LINENO" 5; }
+
+# Provide some information about the compiler.
+$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
+set X $ac_compile
+ac_compiler=$2
+for ac_option in --version -v -V -qversion; do
+  { { ac_try="$ac_compiler $ac_option >&5"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    sed '10a\
+... rest of stderr output deleted ...
+         10q' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+  fi
+  rm -f conftest.er1 conftest.err
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+done
+
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out"
+# Try to create an executable without -o first, disregard a.out.
+# It will help us diagnose broken compilers, and finding out an intuition
+# of exeext.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
+$as_echo_n "checking whether the C compiler works... " >&6; }
+ac_link_default=`$as_echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
+
+# The possible output files:
+ac_files="a.out conftest.exe conftest a.exe a_out.exe b.out conftest.*"
+
+ac_rmfiles=
+for ac_file in $ac_files
+do
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
+    * ) ac_rmfiles="$ac_rmfiles $ac_file";;
+  esac
+done
+rm -f $ac_rmfiles
+
+if { { ac_try="$ac_link_default"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link_default") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  # Autoconf-2.13 could set the ac_cv_exeext variable to `no'.
+# So ignore a value of `no', otherwise this would lead to `EXEEXT = no'
+# in a Makefile.  We should not override ac_cv_exeext if it was cached,
+# so that the user can short-circuit this test for compilers unknown to
+# Autoconf.
+for ac_file in $ac_files ''
+do
+  test -f "$ac_file" || continue
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj )
+	;;
+    [ab].out )
+	# We found the default executable, but exeext='' is most
+	# certainly right.
+	break;;
+    *.* )
+	if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no;
+	then :; else
+	   ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+	fi
+	# We set ac_cv_exeext here because the later test for it is not
+	# safe: cross compilers may not add the suffix if given an `-o'
+	# argument, so we may need to know it at that point already.
+	# Even if this section looks crufty: it has the advantage of
+	# actually working.
+	break;;
+    * )
+	break;;
+  esac
+done
+test "$ac_cv_exeext" = no && ac_cv_exeext=
+
+else
+  ac_file=''
+fi
+if test -z "$ac_file"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+$as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error 77 "C compiler cannot create executables
+See \`config.log' for more details" "$LINENO" 5; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
+$as_echo_n "checking for C compiler default output file name... " >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
+$as_echo "$ac_file" >&6; }
+ac_exeext=$ac_cv_exeext
+
+rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out
+ac_clean_files=$ac_clean_files_save
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
+$as_echo_n "checking for suffix of executables... " >&6; }
+if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  # If both `conftest.exe' and `conftest' are `present' (well, observable)
+# catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
+# work properly (i.e., refer to `conftest.exe'), while it won't with
+# `rm'.
+for ac_file in conftest.exe conftest conftest.*; do
+  test -f "$ac_file" || continue
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
+    *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+	  break;;
+    * ) break;;
+  esac
+done
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot compute suffix of executables: cannot compile and link
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+rm -f conftest conftest$ac_cv_exeext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
+$as_echo "$ac_cv_exeext" >&6; }
+
+rm -f conftest.$ac_ext
+EXEEXT=$ac_cv_exeext
+ac_exeext=$EXEEXT
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdio.h>
+int
+main ()
+{
+FILE *f = fopen ("conftest.out", "w");
+ return ferror (f) || fclose (f) != 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+ac_clean_files="$ac_clean_files conftest.out"
+# Check that the compiler produces executables we can run.  If not, either
+# the compiler is broken, or we cross compile.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
+$as_echo_n "checking whether we are cross compiling... " >&6; }
+if test "$cross_compiling" != yes; then
+  { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+  if { ac_try='./conftest$ac_cv_exeext'
+  { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then
+    cross_compiling=no
+  else
+    if test "$cross_compiling" = maybe; then
+	cross_compiling=yes
+    else
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run C compiled programs.
+If you meant to cross compile, use \`--host'.
+See \`config.log' for more details" "$LINENO" 5; }
+    fi
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
+$as_echo "$cross_compiling" >&6; }
+
+rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
+ac_clean_files=$ac_clean_files_save
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
+$as_echo_n "checking for suffix of object files... " >&6; }
+if ${ac_cv_objext+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.o conftest.obj
+if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  for ac_file in conftest.o conftest.obj conftest.*; do
+  test -f "$ac_file" || continue;
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM ) ;;
+    *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
+       break;;
+  esac
+done
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot compute suffix of object files: cannot compile
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+rm -f conftest.$ac_cv_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
+$as_echo "$ac_cv_objext" >&6; }
+OBJEXT=$ac_cv_objext
+ac_objext=$OBJEXT
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
+$as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
+if ${ac_cv_c_compiler_gnu+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+#ifndef __GNUC__
+       choke me
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_compiler_gnu=yes
+else
+  ac_compiler_gnu=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_c_compiler_gnu=$ac_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
+$as_echo "$ac_cv_c_compiler_gnu" >&6; }
+if test $ac_compiler_gnu = yes; then
+  GCC=yes
+else
+  GCC=
+fi
+ac_test_CFLAGS=${CFLAGS+set}
+ac_save_CFLAGS=$CFLAGS
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
+$as_echo_n "checking whether $CC accepts -g... " >&6; }
+if ${ac_cv_prog_cc_g+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_save_c_werror_flag=$ac_c_werror_flag
+   ac_c_werror_flag=yes
+   ac_cv_prog_cc_g=no
+   CFLAGS="-g"
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_g=yes
+else
+  CFLAGS=""
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+else
+  ac_c_werror_flag=$ac_save_c_werror_flag
+	 CFLAGS="-g"
+	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_g=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+   ac_c_werror_flag=$ac_save_c_werror_flag
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
+$as_echo "$ac_cv_prog_cc_g" >&6; }
+if test "$ac_test_CFLAGS" = set; then
+  CFLAGS=$ac_save_CFLAGS
+elif test $ac_cv_prog_cc_g = yes; then
+  if test "$GCC" = yes; then
+    CFLAGS="-g -O2"
+  else
+    CFLAGS="-g"
+  fi
+else
+  if test "$GCC" = yes; then
+    CFLAGS="-O2"
+  else
+    CFLAGS=
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
+$as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
+if ${ac_cv_prog_cc_c89+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_cv_prog_cc_c89=no
+ac_save_CC=$CC
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdarg.h>
+#include <stdio.h>
+struct stat;
+/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
+struct buf { int x; };
+FILE * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (p, i)
+     char **p;
+     int i;
+{
+  return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+  char *s;
+  va_list v;
+  va_start (v,p);
+  s = g (p, va_arg (v,int));
+  va_end (v);
+  return s;
+}
+
+/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
+   function prototypes and stuff, but not '\xHH' hex character constants.
+   These don't provoke an error unfortunately, instead are silently treated
+   as 'x'.  The following induces an error, until -std is added to get
+   proper ANSI mode.  Curiously '\x00'!='x' always comes out true, for an
+   array size at least.  It's necessary to write '\x00'==0 to get something
+   that's true only with -std.  */
+int osf4_cc_array ['\x00' == 0 ? 1 : -1];
+
+/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
+   inside strings and character constants.  */
+#define FOO(x) 'x'
+int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
+
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
+int argc;
+char **argv;
+int
+main ()
+{
+return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
+  ;
+  return 0;
+}
+_ACEOF
+for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
+	-Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+do
+  CC="$ac_save_CC $ac_arg"
+  if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_c89=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext
+  test "x$ac_cv_prog_cc_c89" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC
+
+fi
+# AC_CACHE_VAL
+case "x$ac_cv_prog_cc_c89" in
+  x)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+$as_echo "none needed" >&6; } ;;
+  xno)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+$as_echo "unsupported" >&6; } ;;
+  *)
+    CC="$CC $ac_cv_prog_cc_c89"
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
+$as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
+esac
+if test "x$ac_cv_prog_cc_c89" != xno; then :
+
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+depcc="$CC"   am_compiler_list=
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking dependency style of $depcc" >&5
+$as_echo_n "checking dependency style of $depcc... " >&6; }
+if ${am_cv_CC_dependencies_compiler_type+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+  # We make a subdir and do the tests there.  Otherwise we can end up
+  # making bogus files that we don't know about and never remove.  For
+  # instance it was reported that on HP-UX the gcc test will end up
+  # making a dummy file named 'D' -- because '-MD' means "put the output
+  # in D".
+  rm -rf conftest.dir
+  mkdir conftest.dir
+  # Copy depcomp to subdir because otherwise we won't find it if we're
+  # using a relative directory.
+  cp "$am_depcomp" conftest.dir
+  cd conftest.dir
+  # We will build objects and dependencies in a subdirectory because
+  # it helps to detect inapplicable dependency modes.  For instance
+  # both Tru64's cc and ICC support -MD to output dependencies as a
+  # side effect of compilation, but ICC will put the dependencies in
+  # the current directory while Tru64 will put them in the object
+  # directory.
+  mkdir sub
+
+  am_cv_CC_dependencies_compiler_type=none
+  if test "$am_compiler_list" = ""; then
+     am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
+  fi
+  am__universal=false
+  case " $depcc " in #(
+     *\ -arch\ *\ -arch\ *) am__universal=true ;;
+     esac
+
+  for depmode in $am_compiler_list; do
+    # Setup a source with many dependencies, because some compilers
+    # like to wrap large dependency lists on column 80 (with \), and
+    # we should not choose a depcomp mode which is confused by this.
+    #
+    # We need to recreate these files for each test, as the compiler may
+    # overwrite some of them when testing with obscure command lines.
+    # This happens at least with the AIX C compiler.
+    : > sub/conftest.c
+    for i in 1 2 3 4 5 6; do
+      echo '#include "conftst'$i'.h"' >> sub/conftest.c
+      # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
+      # Solaris 10 /bin/sh.
+      echo '/* dummy */' > sub/conftst$i.h
+    done
+    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
+
+    # We check with '-c' and '-o' for the sake of the "dashmstdout"
+    # mode.  It turns out that the SunPro C++ compiler does not properly
+    # handle '-M -o', and we need to detect this.  Also, some Intel
+    # versions had trouble with output in subdirs.
+    am__obj=sub/conftest.${OBJEXT-o}
+    am__minus_obj="-o $am__obj"
+    case $depmode in
+    gcc)
+      # This depmode causes a compiler race in universal mode.
+      test "$am__universal" = false || continue
+      ;;
+    nosideeffect)
+      # After this tag, mechanisms are not by side-effect, so they'll
+      # only be used when explicitly requested.
+      if test "x$enable_dependency_tracking" = xyes; then
+	continue
+      else
+	break
+      fi
+      ;;
+    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
+      # This compiler won't grok '-c -o', but also, the minuso test has
+      # not run yet.  These depmodes are late enough in the game, and
+      # so weak that their functioning should not be impacted.
+      am__obj=conftest.${OBJEXT-o}
+      am__minus_obj=
+      ;;
+    none) break ;;
+    esac
+    if depmode=$depmode \
+       source=sub/conftest.c object=$am__obj \
+       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
+       $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
+         >/dev/null 2>conftest.err &&
+       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
+       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
+      # icc doesn't choke on unknown options, it will just issue warnings
+      # or remarks (even with -Werror).  So we grep stderr for any message
+      # that says an option was ignored or not supported.
+      # When given -MP, icc 7.0 and 7.1 complain thusly:
+      #   icc: Command line warning: ignoring option '-M'; no argument required
+      # The diagnosis changed in icc 8.0:
+      #   icc: Command line remark: option '-MP' not supported
+      if (grep 'ignoring option' conftest.err ||
+          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
+        am_cv_CC_dependencies_compiler_type=$depmode
+        break
+      fi
+    fi
+  done
+
+  cd ..
+  rm -rf conftest.dir
+else
+  am_cv_CC_dependencies_compiler_type=none
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_CC_dependencies_compiler_type" >&5
+$as_echo "$am_cv_CC_dependencies_compiler_type" >&6; }
+CCDEPMODE=depmode=$am_cv_CC_dependencies_compiler_type
+
+ if
+  test "x$enable_dependency_tracking" != xno \
+  && test "$am_cv_CC_dependencies_compiler_type" = gcc3; then
+  am__fastdepCC_TRUE=
+  am__fastdepCC_FALSE='#'
+else
+  am__fastdepCC_TRUE='#'
+  am__fastdepCC_FALSE=
+fi
+
+
+   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C99" >&5
+$as_echo_n "checking for $CC option to accept ISO C99... " >&6; }
+if ${ac_cv_prog_cc_c99+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_cv_prog_cc_c99=no
+ac_save_CC=$CC
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <wchar.h>
+#include <stdio.h>
+
+// Check varargs macros.  These examples are taken from C99 6.10.3.5.
+#define debug(...) fprintf (stderr, __VA_ARGS__)
+#define showlist(...) puts (#__VA_ARGS__)
+#define report(test,...) ((test) ? puts (#test) : printf (__VA_ARGS__))
+static void
+test_varargs_macros (void)
+{
+  int x = 1234;
+  int y = 5678;
+  debug ("Flag");
+  debug ("X = %d\n", x);
+  showlist (The first, second, and third items.);
+  report (x>y, "x is %d but y is %d", x, y);
+}
+
+// Check long long types.
+#define BIG64 18446744073709551615ull
+#define BIG32 4294967295ul
+#define BIG_OK (BIG64 / BIG32 == 4294967297ull && BIG64 % BIG32 == 0)
+#if !BIG_OK
+  your preprocessor is broken;
+#endif
+#if BIG_OK
+#else
+  your preprocessor is broken;
+#endif
+static long long int bignum = -9223372036854775807LL;
+static unsigned long long int ubignum = BIG64;
+
+struct incomplete_array
+{
+  int datasize;
+  double data[];
+};
+
+struct named_init {
+  int number;
+  const wchar_t *name;
+  double average;
+};
+
+typedef const char *ccp;
+
+static inline int
+test_restrict (ccp restrict text)
+{
+  // See if C++-style comments work.
+  // Iterate through items via the restricted pointer.
+  // Also check for declarations in for loops.
+  for (unsigned int i = 0; *(text+i) != '\0'; ++i)
+    continue;
+  return 0;
+}
+
+// Check varargs and va_copy.
+static void
+test_varargs (const char *format, ...)
+{
+  va_list args;
+  va_start (args, format);
+  va_list args_copy;
+  va_copy (args_copy, args);
+
+  const char *str;
+  int number;
+  float fnumber;
+
+  while (*format)
+    {
+      switch (*format++)
+	{
+	case 's': // string
+	  str = va_arg (args_copy, const char *);
+	  break;
+	case 'd': // int
+	  number = va_arg (args_copy, int);
+	  break;
+	case 'f': // float
+	  fnumber = va_arg (args_copy, double);
+	  break;
+	default:
+	  break;
+	}
+    }
+  va_end (args_copy);
+  va_end (args);
+}
+
+int
+main ()
+{
+
+  // Check bool.
+  _Bool success = false;
+
+  // Check restrict.
+  if (test_restrict ("String literal") == 0)
+    success = true;
+  char *restrict newvar = "Another string";
+
+  // Check varargs.
+  test_varargs ("s, d' f .", "string", 65, 34.234);
+  test_varargs_macros ();
+
+  // Check flexible array members.
+  struct incomplete_array *ia =
+    malloc (sizeof (struct incomplete_array) + (sizeof (double) * 10));
+  ia->datasize = 10;
+  for (int i = 0; i < ia->datasize; ++i)
+    ia->data[i] = i * 1.234;
+
+  // Check named initializers.
+  struct named_init ni = {
+    .number = 34,
+    .name = L"Test wide string",
+    .average = 543.34343,
+  };
+
+  ni.number = 58;
+
+  int dynamic_array[ni.number];
+  dynamic_array[ni.number - 1] = 543;
+
+  // work around unused variable warnings
+  return (!success || bignum == 0LL || ubignum == 0uLL || newvar[0] == 'x'
+	  || dynamic_array[ni.number - 1] != 543);
+
+  ;
+  return 0;
+}
+_ACEOF
+for ac_arg in '' -std=gnu99 -std=c99 -c99 -AC99 -D_STDC_C99= -qlanglvl=extc99
+do
+  CC="$ac_save_CC $ac_arg"
+  if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_c99=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext
+  test "x$ac_cv_prog_cc_c99" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC
+
+fi
+# AC_CACHE_VAL
+case "x$ac_cv_prog_cc_c99" in
+  x)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+$as_echo "none needed" >&6; } ;;
+  xno)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+$as_echo "unsupported" >&6; } ;;
+  *)
+    CC="$CC $ac_cv_prog_cc_c99"
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5
+$as_echo "$ac_cv_prog_cc_c99" >&6; } ;;
+esac
+if test "x$ac_cv_prog_cc_c99" != xno; then :
+
+fi
+
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
+$as_echo_n "checking how to run the C preprocessor... " >&6; }
+# On Suns, sometimes $CPP names a directory.
+if test -n "$CPP" && test -d "$CPP"; then
+  CPP=
+fi
+if test -z "$CPP"; then
+  if ${ac_cv_prog_CPP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      # Double quotes because CPP needs to be expanded
+    for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
+    do
+      ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+  break
+fi
+
+    done
+    ac_cv_prog_CPP=$CPP
+
+fi
+  CPP=$ac_cv_prog_CPP
+else
+  ac_cv_prog_CPP=$CPP
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
+$as_echo "$CPP" >&6; }
+ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
+$as_echo_n "checking for grep that handles long lines and -e... " >&6; }
+if ${ac_cv_path_GREP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$GREP"; then
+  ac_path_GREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in grep ggrep; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_GREP" || continue
+# Check for GNU ac_path_GREP and select it if it is found.
+  # Check for GNU $ac_path_GREP
+case `"$ac_path_GREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo 'GREP' >> "conftest.nl"
+    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_GREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_GREP="$ac_path_GREP"
+      ac_path_GREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_GREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_GREP"; then
+    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_GREP=$GREP
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
+$as_echo "$ac_cv_path_GREP" >&6; }
+ GREP="$ac_cv_path_GREP"
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
+$as_echo_n "checking for egrep... " >&6; }
+if ${ac_cv_path_EGREP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
+   then ac_cv_path_EGREP="$GREP -E"
+   else
+     if test -z "$EGREP"; then
+  ac_path_EGREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in egrep; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_EGREP" || continue
+# Check for GNU ac_path_EGREP and select it if it is found.
+  # Check for GNU $ac_path_EGREP
+case `"$ac_path_EGREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo 'EGREP' >> "conftest.nl"
+    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_EGREP="$ac_path_EGREP"
+      ac_path_EGREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_EGREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_EGREP"; then
+    as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_EGREP=$EGREP
+fi
+
+   fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
+$as_echo "$ac_cv_path_EGREP" >&6; }
+ EGREP="$ac_cv_path_EGREP"
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
+$as_echo_n "checking for ANSI C header files... " >&6; }
+if ${ac_cv_header_stdc+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <float.h>
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_header_stdc=yes
+else
+  ac_cv_header_stdc=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+if test $ac_cv_header_stdc = yes; then
+  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <string.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "memchr" >/dev/null 2>&1; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "free" >/dev/null 2>&1; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
+  if test "$cross_compiling" = yes; then :
+  :
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ctype.h>
+#include <stdlib.h>
+#if ((' ' & 0x0FF) == 0x020)
+# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
+# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
+#else
+# define ISLOWER(c) \
+		   (('a' <= (c) && (c) <= 'i') \
+		     || ('j' <= (c) && (c) <= 'r') \
+		     || ('s' <= (c) && (c) <= 'z'))
+# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
+#endif
+
+#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
+int
+main ()
+{
+  int i;
+  for (i = 0; i < 256; i++)
+    if (XOR (islower (i), ISLOWER (i))
+	|| toupper (i) != TOUPPER (i))
+      return 2;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
+$as_echo "$ac_cv_header_stdc" >&6; }
+if test $ac_cv_header_stdc = yes; then
+
+$as_echo "#define STDC_HEADERS 1" >>confdefs.h
+
+fi
+
+# On IRIX 5.3, sys/types and inttypes.h are conflicting.
+for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
+		  inttypes.h stdint.h unistd.h
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
+"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+
+
+
+
+
+ac_fn_c_check_decl "$LINENO" "__clang__" "ac_cv_have_decl___clang__" "$ac_includes_default"
+if test "x$ac_cv_have_decl___clang__" = xyes; then :
+  CLANGCC="yes"
+else
+  CLANGCC="no"
+fi
+
+ac_fn_c_check_decl "$LINENO" "__INTEL_COMPILER" "ac_cv_have_decl___INTEL_COMPILER" "$ac_includes_default"
+if test "x$ac_cv_have_decl___INTEL_COMPILER" = xyes; then :
+  INTELCC="yes"
+else
+  INTELCC="no"
+fi
+
+ac_fn_c_check_decl "$LINENO" "__SUNPRO_C" "ac_cv_have_decl___SUNPRO_C" "$ac_includes_default"
+if test "x$ac_cv_have_decl___SUNPRO_C" = xyes; then :
+  SUNCC="yes"
+else
+  SUNCC="no"
+fi
+
+
+
+
+
+
+
+
+
+if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
+	if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_PKG_CONFIG+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $PKG_CONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKG_CONFIG="$PKG_CONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKG_CONFIG=$ac_cv_path_PKG_CONFIG
+if test -n "$PKG_CONFIG"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PKG_CONFIG" >&5
+$as_echo "$PKG_CONFIG" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKG_CONFIG"; then
+  ac_pt_PKG_CONFIG=$PKG_CONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_ac_pt_PKG_CONFIG+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $ac_pt_PKG_CONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKG_CONFIG="$ac_pt_PKG_CONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKG_CONFIG=$ac_cv_path_ac_pt_PKG_CONFIG
+if test -n "$ac_pt_PKG_CONFIG"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKG_CONFIG" >&5
+$as_echo "$ac_pt_PKG_CONFIG" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKG_CONFIG" = x; then
+    PKG_CONFIG=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKG_CONFIG=$ac_pt_PKG_CONFIG
+  fi
+else
+  PKG_CONFIG="$ac_cv_path_PKG_CONFIG"
+fi
+
+fi
+if test -n "$PKG_CONFIG"; then
+	_pkg_min_version=0.9.0
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking pkg-config is at least version $_pkg_min_version" >&5
+$as_echo_n "checking pkg-config is at least version $_pkg_min_version... " >&6; }
+	if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+	else
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+		PKG_CONFIG=""
+	fi
+fi
+# Make sure we can run config.sub.
+$SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
+  as_fn_error $? "cannot run $SHELL $ac_aux_dir/config.sub" "$LINENO" 5
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking build system type" >&5
+$as_echo_n "checking build system type... " >&6; }
+if ${ac_cv_build+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_build_alias=$build_alias
+test "x$ac_build_alias" = x &&
+  ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
+test "x$ac_build_alias" = x &&
+  as_fn_error $? "cannot guess build type; you must specify one" "$LINENO" 5
+ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
+  as_fn_error $? "$SHELL $ac_aux_dir/config.sub $ac_build_alias failed" "$LINENO" 5
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
+$as_echo "$ac_cv_build" >&6; }
+case $ac_cv_build in
+*-*-*) ;;
+*) as_fn_error $? "invalid value of canonical build" "$LINENO" 5;;
+esac
+build=$ac_cv_build
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_build
+shift
+build_cpu=$1
+build_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+build_os=$*
+IFS=$ac_save_IFS
+case $build_os in *\ *) build_os=`echo "$build_os" | sed 's/ /-/g'`;; esac
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking host system type" >&5
+$as_echo_n "checking host system type... " >&6; }
+if ${ac_cv_host+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test "x$host_alias" = x; then
+  ac_cv_host=$ac_cv_build
+else
+  ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
+    as_fn_error $? "$SHELL $ac_aux_dir/config.sub $host_alias failed" "$LINENO" 5
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
+$as_echo "$ac_cv_host" >&6; }
+case $ac_cv_host in
+*-*-*) ;;
+*) as_fn_error $? "invalid value of canonical host" "$LINENO" 5;;
+esac
+host=$ac_cv_host
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_host
+shift
+host_cpu=$1
+host_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+host_os=$*
+IFS=$ac_save_IFS
+case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a sed that does not truncate output" >&5
+$as_echo_n "checking for a sed that does not truncate output... " >&6; }
+if ${ac_cv_path_SED+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+            ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
+     for ac_i in 1 2 3 4 5 6 7; do
+       ac_script="$ac_script$as_nl$ac_script"
+     done
+     echo "$ac_script" 2>/dev/null | sed 99q >conftest.sed
+     { ac_script=; unset ac_script;}
+     if test -z "$SED"; then
+  ac_path_SED_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in sed gsed; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_SED="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_SED" || continue
+# Check for GNU ac_path_SED and select it if it is found.
+  # Check for GNU $ac_path_SED
+case `"$ac_path_SED" --version 2>&1` in
+*GNU*)
+  ac_cv_path_SED="$ac_path_SED" ac_path_SED_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo '' >> "conftest.nl"
+    "$ac_path_SED" -f conftest.sed < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_SED_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_SED="$ac_path_SED"
+      ac_path_SED_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_SED_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_SED"; then
+    as_fn_error $? "no acceptable sed could be found in \$PATH" "$LINENO" 5
+  fi
+else
+  ac_cv_path_SED=$SED
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_SED" >&5
+$as_echo "$ac_cv_path_SED" >&6; }
+ SED="$ac_cv_path_SED"
+  rm -f conftest.sed
+
+
+
+
+
+
+# Check whether --enable-selective-werror was given.
+if test "${enable_selective_werror+set}" = set; then :
+  enableval=$enable_selective_werror; SELECTIVE_WERROR=$enableval
+else
+  SELECTIVE_WERROR=yes
+fi
+
+
+
+
+
+# -v is too short to test reliably with XORG_TESTSET_CFLAG
+if test "x$SUNCC" = "xyes"; then
+    BASE_CFLAGS="-v"
+else
+    BASE_CFLAGS=""
+fi
+
+# This chunk of warnings were those that existed in the legacy CWARNFLAGS
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Wall"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wall" >&5
+$as_echo_n "checking if $CC supports -Wall... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wall
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Wall"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Wpointer-arith"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wpointer-arith" >&5
+$as_echo_n "checking if $CC supports -Wpointer-arith... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wpointer_arith
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Wpointer-arith"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Wmissing-declarations"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wmissing-declarations" >&5
+$as_echo_n "checking if $CC supports -Wmissing-declarations... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wmissing_declarations
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Wmissing-declarations"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Wformat=2"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wformat=2" >&5
+$as_echo_n "checking if $CC supports -Wformat=2... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wformat_2
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Wformat=2"
+			found="yes"
+		fi
+	fi
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Wformat"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wformat" >&5
+$as_echo_n "checking if $CC supports -Wformat... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wformat
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Wformat"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Wstrict-prototypes"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wstrict-prototypes" >&5
+$as_echo_n "checking if $CC supports -Wstrict-prototypes... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wstrict_prototypes
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Wstrict-prototypes"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Wmissing-prototypes"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wmissing-prototypes" >&5
+$as_echo_n "checking if $CC supports -Wmissing-prototypes... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wmissing_prototypes
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Wmissing-prototypes"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Wnested-externs"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wnested-externs" >&5
+$as_echo_n "checking if $CC supports -Wnested-externs... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wnested_externs
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Wnested-externs"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Wbad-function-cast"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wbad-function-cast" >&5
+$as_echo_n "checking if $CC supports -Wbad-function-cast... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wbad_function_cast
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Wbad-function-cast"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Wold-style-definition"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wold-style-definition" >&5
+$as_echo_n "checking if $CC supports -Wold-style-definition... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wold_style_definition
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Wold-style-definition"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Wdeclaration-after-statement"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wdeclaration-after-statement" >&5
+$as_echo_n "checking if $CC supports -Wdeclaration-after-statement... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wdeclaration_after_statement
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Wdeclaration-after-statement"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+# This chunk adds additional warnings that could catch undesired effects.
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Wunused"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wunused" >&5
+$as_echo_n "checking if $CC supports -Wunused... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wunused
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Wunused"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Wuninitialized"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wuninitialized" >&5
+$as_echo_n "checking if $CC supports -Wuninitialized... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wuninitialized
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Wuninitialized"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Wshadow"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wshadow" >&5
+$as_echo_n "checking if $CC supports -Wshadow... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wshadow
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Wshadow"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Wcast-qual"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wcast-qual" >&5
+$as_echo_n "checking if $CC supports -Wcast-qual... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wcast_qual
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Wcast-qual"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Wmissing-noreturn"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wmissing-noreturn" >&5
+$as_echo_n "checking if $CC supports -Wmissing-noreturn... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wmissing_noreturn
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Wmissing-noreturn"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Wmissing-format-attribute"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wmissing-format-attribute" >&5
+$as_echo_n "checking if $CC supports -Wmissing-format-attribute... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wmissing_format_attribute
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Wmissing-format-attribute"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Wredundant-decls"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wredundant-decls" >&5
+$as_echo_n "checking if $CC supports -Wredundant-decls... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wredundant_decls
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Wredundant-decls"
+			found="yes"
+		fi
+	fi
+
+
+
+# These are currently disabled because they are noisy.  They will be enabled
+# in the future once the codebase is sufficiently modernized to silence
+# them.  For now, I don't want them to drown out the other warnings.
+# XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wlogical-op])
+# XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wparentheses])
+# XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wcast-align])
+
+# Turn some warnings into errors, so we don't accidently get successful builds
+# when there are problems that should be fixed.
+
+if test "x$SELECTIVE_WERROR" = "xyes" ; then
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Werror=implicit"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=implicit" >&5
+$as_echo_n "checking if $CC supports -Werror=implicit... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror_implicit
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Werror=implicit"
+			found="yes"
+		fi
+	fi
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -errwarn=E_NO_EXPLICIT_TYPE_GIVEN -errwarn=E_NO_IMPLICIT_DECL_ALLOWED"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -errwarn=E_NO_EXPLICIT_TYPE_GIVEN -errwarn=E_NO_IMPLICIT_DECL_ALLOWED" >&5
+$as_echo_n "checking if $CC supports -errwarn=E_NO_EXPLICIT_TYPE_GIVEN -errwarn=E_NO_IMPLICIT_DECL_ALLOWED... " >&6; }
+		cacheid=xorg_cv_cc_flag__errwarn_E_NO_EXPLICIT_TYPE_GIVEN__errwarn_E_NO_IMPLICIT_DECL_ALLOWED
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -errwarn=E_NO_EXPLICIT_TYPE_GIVEN -errwarn=E_NO_IMPLICIT_DECL_ALLOWED"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Werror=nonnull"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=nonnull" >&5
+$as_echo_n "checking if $CC supports -Werror=nonnull... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror_nonnull
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Werror=nonnull"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Werror=init-self"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=init-self" >&5
+$as_echo_n "checking if $CC supports -Werror=init-self... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror_init_self
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Werror=init-self"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Werror=main"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=main" >&5
+$as_echo_n "checking if $CC supports -Werror=main... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror_main
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Werror=main"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Werror=missing-braces"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=missing-braces" >&5
+$as_echo_n "checking if $CC supports -Werror=missing-braces... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror_missing_braces
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Werror=missing-braces"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Werror=sequence-point"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=sequence-point" >&5
+$as_echo_n "checking if $CC supports -Werror=sequence-point... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror_sequence_point
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Werror=sequence-point"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Werror=return-type"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=return-type" >&5
+$as_echo_n "checking if $CC supports -Werror=return-type... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror_return_type
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Werror=return-type"
+			found="yes"
+		fi
+	fi
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -errwarn=E_FUNC_HAS_NO_RETURN_STMT"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -errwarn=E_FUNC_HAS_NO_RETURN_STMT" >&5
+$as_echo_n "checking if $CC supports -errwarn=E_FUNC_HAS_NO_RETURN_STMT... " >&6; }
+		cacheid=xorg_cv_cc_flag__errwarn_E_FUNC_HAS_NO_RETURN_STMT
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -errwarn=E_FUNC_HAS_NO_RETURN_STMT"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Werror=trigraphs"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=trigraphs" >&5
+$as_echo_n "checking if $CC supports -Werror=trigraphs... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror_trigraphs
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Werror=trigraphs"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Werror=array-bounds"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=array-bounds" >&5
+$as_echo_n "checking if $CC supports -Werror=array-bounds... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror_array_bounds
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Werror=array-bounds"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Werror=write-strings"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=write-strings" >&5
+$as_echo_n "checking if $CC supports -Werror=write-strings... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror_write_strings
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Werror=write-strings"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Werror=address"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=address" >&5
+$as_echo_n "checking if $CC supports -Werror=address... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror_address
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Werror=address"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Werror=int-to-pointer-cast"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=int-to-pointer-cast" >&5
+$as_echo_n "checking if $CC supports -Werror=int-to-pointer-cast... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror_int_to_pointer_cast
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Werror=int-to-pointer-cast"
+			found="yes"
+		fi
+	fi
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -errwarn=E_BAD_PTR_INT_COMBINATION"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -errwarn=E_BAD_PTR_INT_COMBINATION" >&5
+$as_echo_n "checking if $CC supports -errwarn=E_BAD_PTR_INT_COMBINATION... " >&6; }
+		cacheid=xorg_cv_cc_flag__errwarn_E_BAD_PTR_INT_COMBINATION
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -errwarn=E_BAD_PTR_INT_COMBINATION"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Werror=pointer-to-int-cast"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=pointer-to-int-cast" >&5
+$as_echo_n "checking if $CC supports -Werror=pointer-to-int-cast... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror_pointer_to_int_cast
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Werror=pointer-to-int-cast"
+			found="yes"
+		fi
+	fi
+
+ # Also -errwarn=E_BAD_PTR_INT_COMBINATION
+else
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: You have chosen not to turn some select compiler warnings into errors.  This should not be necessary.  Please report why you needed to do so in a bug report at $PACKAGE_BUGREPORT" >&5
+$as_echo "$as_me: WARNING: You have chosen not to turn some select compiler warnings into errors.  This should not be necessary.  Please report why you needed to do so in a bug report at $PACKAGE_BUGREPORT" >&2;}
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Wimplicit"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wimplicit" >&5
+$as_echo_n "checking if $CC supports -Wimplicit... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wimplicit
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Wimplicit"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Wnonnull"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wnonnull" >&5
+$as_echo_n "checking if $CC supports -Wnonnull... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wnonnull
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Wnonnull"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Winit-self"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Winit-self" >&5
+$as_echo_n "checking if $CC supports -Winit-self... " >&6; }
+		cacheid=xorg_cv_cc_flag__Winit_self
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Winit-self"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Wmain"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wmain" >&5
+$as_echo_n "checking if $CC supports -Wmain... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wmain
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Wmain"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Wmissing-braces"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wmissing-braces" >&5
+$as_echo_n "checking if $CC supports -Wmissing-braces... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wmissing_braces
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Wmissing-braces"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Wsequence-point"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wsequence-point" >&5
+$as_echo_n "checking if $CC supports -Wsequence-point... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wsequence_point
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Wsequence-point"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Wreturn-type"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wreturn-type" >&5
+$as_echo_n "checking if $CC supports -Wreturn-type... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wreturn_type
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Wreturn-type"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Wtrigraphs"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wtrigraphs" >&5
+$as_echo_n "checking if $CC supports -Wtrigraphs... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wtrigraphs
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Wtrigraphs"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Warray-bounds"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Warray-bounds" >&5
+$as_echo_n "checking if $CC supports -Warray-bounds... " >&6; }
+		cacheid=xorg_cv_cc_flag__Warray_bounds
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Warray-bounds"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Wwrite-strings"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wwrite-strings" >&5
+$as_echo_n "checking if $CC supports -Wwrite-strings... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wwrite_strings
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Wwrite-strings"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Waddress"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Waddress" >&5
+$as_echo_n "checking if $CC supports -Waddress... " >&6; }
+		cacheid=xorg_cv_cc_flag__Waddress
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Waddress"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Wint-to-pointer-cast"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wint-to-pointer-cast" >&5
+$as_echo_n "checking if $CC supports -Wint-to-pointer-cast... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wint_to_pointer_cast
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Wint-to-pointer-cast"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Wpointer-to-int-cast"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wpointer-to-int-cast" >&5
+$as_echo_n "checking if $CC supports -Wpointer-to-int-cast... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wpointer_to_int_cast
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			BASE_CFLAGS="$BASE_CFLAGS -Wpointer-to-int-cast"
+			found="yes"
+		fi
+	fi
+
+
+fi
+
+
+
+
+
+
+
+		CWARNFLAGS="$BASE_CFLAGS"
+		if  test "x$GCC" = xyes ; then
+		    CWARNFLAGS="$CWARNFLAGS -fno-strict-aliasing"
+		fi
+
+
+
+
+
+
+
+
+# Check whether --enable-strict-compilation was given.
+if test "${enable_strict_compilation+set}" = set; then :
+  enableval=$enable_strict_compilation; STRICT_COMPILE=$enableval
+else
+  STRICT_COMPILE=no
+fi
+
+
+
+
+
+
+STRICT_CFLAGS=""
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -pedantic"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -pedantic" >&5
+$as_echo_n "checking if $CC supports -pedantic... " >&6; }
+		cacheid=xorg_cv_cc_flag__pedantic
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			STRICT_CFLAGS="$STRICT_CFLAGS -pedantic"
+			found="yes"
+		fi
+	fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Werror"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror" >&5
+$as_echo_n "checking if $CC supports -Werror... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			STRICT_CFLAGS="$STRICT_CFLAGS -Werror"
+			found="yes"
+		fi
+	fi
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -errwarn"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -errwarn" >&5
+$as_echo_n "checking if $CC supports -errwarn... " >&6; }
+		cacheid=xorg_cv_cc_flag__errwarn
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			STRICT_CFLAGS="$STRICT_CFLAGS -errwarn"
+			found="yes"
+		fi
+	fi
+
+
+
+# Earlier versions of gcc (eg: 4.2) support -Werror=attributes, but do not
+# activate it with -Werror, so we add it here explicitly.
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  xorg_cv_cc_flag_unknown_warning_option=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
+	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
+	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
+		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	fi
+	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
+	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
+	CFLAGS="$xorg_testset_save_CFLAGS"
+fi
+
+found="no"
+
+	if test $found = "no" ; then
+		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+		fi
+
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Werror=attributes"
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=attributes" >&5
+$as_echo_n "checking if $CC supports -Werror=attributes... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror_attributes
+		if eval \${$cacheid+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval $cacheid=yes
+else
+  eval $cacheid=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
+$as_echo "$supported" >&6; }
+		if test "$supported" = "yes" ; then
+			STRICT_CFLAGS="$STRICT_CFLAGS -Werror=attributes"
+			found="yes"
+		fi
+	fi
+
+
+
+if test "x$STRICT_COMPILE" = "xyes"; then
+    BASE_CFLAGS="$BASE_CFLAGS $STRICT_CFLAGS"
+    CWARNFLAGS="$CWARNFLAGS $STRICT_CFLAGS"
+fi
+
+
+
+
+
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_VERSION_MAJOR `echo $PACKAGE_VERSION | cut -d . -f 1`
+_ACEOF
+
+	PVM=`echo $PACKAGE_VERSION | cut -d . -f 2 | cut -d - -f 1`
+	if test "x$PVM" = "x"; then
+		PVM="0"
+	fi
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_VERSION_MINOR $PVM
+_ACEOF
+
+	PVP=`echo $PACKAGE_VERSION | cut -d . -f 3 | cut -d - -f 1`
+	if test "x$PVP" = "x"; then
+		PVP="0"
+	fi
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_VERSION_PATCHLEVEL $PVP
+_ACEOF
+
+
+
+CHANGELOG_CMD="(GIT_DIR=\$(top_srcdir)/.git git log > \$(top_srcdir)/.changelog.tmp && \
+mv \$(top_srcdir)/.changelog.tmp \$(top_srcdir)/ChangeLog) \
+|| (rm -f \$(top_srcdir)/.changelog.tmp; touch \$(top_srcdir)/ChangeLog; \
+echo 'git directory not found: installing possibly empty changelog.' >&2)"
+
+
+
+
+macros_datadir=`$PKG_CONFIG --print-errors --variable=pkgdatadir xorg-macros`
+INSTALL_CMD="(cp -f "$macros_datadir/INSTALL" \$(top_srcdir)/.INSTALL.tmp && \
+mv \$(top_srcdir)/.INSTALL.tmp \$(top_srcdir)/INSTALL) \
+|| (rm -f \$(top_srcdir)/.INSTALL.tmp; touch \$(top_srcdir)/INSTALL; \
+echo 'util-macros \"pkgdatadir\" from xorg-macros.pc not found: installing possibly empty INSTALL.' >&2)"
+
+
+
+
+
+
+if test x$APP_MAN_SUFFIX = x    ; then
+    APP_MAN_SUFFIX=1
+fi
+if test x$APP_MAN_DIR = x    ; then
+    APP_MAN_DIR='$(mandir)/man$(APP_MAN_SUFFIX)'
+fi
+
+if test x$LIB_MAN_SUFFIX = x    ; then
+    LIB_MAN_SUFFIX=3
+fi
+if test x$LIB_MAN_DIR = x    ; then
+    LIB_MAN_DIR='$(mandir)/man$(LIB_MAN_SUFFIX)'
+fi
+
+if test x$FILE_MAN_SUFFIX = x    ; then
+    case $host_os in
+	solaris*)	FILE_MAN_SUFFIX=4  ;;
+	*)		FILE_MAN_SUFFIX=5  ;;
+    esac
+fi
+if test x$FILE_MAN_DIR = x    ; then
+    FILE_MAN_DIR='$(mandir)/man$(FILE_MAN_SUFFIX)'
+fi
+
+if test x$MISC_MAN_SUFFIX = x    ; then
+    case $host_os in
+	solaris*)	MISC_MAN_SUFFIX=5  ;;
+	*)		MISC_MAN_SUFFIX=7  ;;
+    esac
+fi
+if test x$MISC_MAN_DIR = x    ; then
+    MISC_MAN_DIR='$(mandir)/man$(MISC_MAN_SUFFIX)'
+fi
+
+if test x$DRIVER_MAN_SUFFIX = x    ; then
+    case $host_os in
+	solaris*)	DRIVER_MAN_SUFFIX=7  ;;
+	*)		DRIVER_MAN_SUFFIX=4  ;;
+    esac
+fi
+if test x$DRIVER_MAN_DIR = x    ; then
+    DRIVER_MAN_DIR='$(mandir)/man$(DRIVER_MAN_SUFFIX)'
+fi
+
+if test x$ADMIN_MAN_SUFFIX = x    ; then
+    case $host_os in
+	solaris*)	ADMIN_MAN_SUFFIX=1m ;;
+	*)		ADMIN_MAN_SUFFIX=8  ;;
+    esac
+fi
+if test x$ADMIN_MAN_DIR = x    ; then
+    ADMIN_MAN_DIR='$(mandir)/man$(ADMIN_MAN_SUFFIX)'
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+XORG_MAN_PAGE="X Version 11"
+
+MAN_SUBSTS="\
+	-e 's|__vendorversion__|\"\$(PACKAGE_STRING)\" \"\$(XORG_MAN_PAGE)\"|' \
+	-e 's|__xorgversion__|\"\$(PACKAGE_STRING)\" \"\$(XORG_MAN_PAGE)\"|' \
+	-e 's|__xservername__|Xorg|g' \
+	-e 's|__xconfigfile__|xorg.conf|g' \
+	-e 's|__projectroot__|\$(prefix)|g' \
+	-e 's|__apploaddir__|\$(appdefaultdir)|g' \
+	-e 's|__appmansuffix__|\$(APP_MAN_SUFFIX)|g' \
+	-e 's|__drivermansuffix__|\$(DRIVER_MAN_SUFFIX)|g' \
+	-e 's|__adminmansuffix__|\$(ADMIN_MAN_SUFFIX)|g' \
+	-e 's|__libmansuffix__|\$(LIB_MAN_SUFFIX)|g' \
+	-e 's|__miscmansuffix__|\$(MISC_MAN_SUFFIX)|g' \
+	-e 's|__filemansuffix__|\$(FILE_MAN_SUFFIX)|g'"
+
+
+
+# Check whether --enable-silent-rules was given.
+if test "${enable_silent_rules+set}" = set; then :
+  enableval=$enable_silent_rules;
+fi
+
+case $enable_silent_rules in # (((
+  yes) AM_DEFAULT_VERBOSITY=0;;
+   no) AM_DEFAULT_VERBOSITY=1;;
+    *) AM_DEFAULT_VERBOSITY=0;;
+esac
+am_make=${MAKE-make}
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $am_make supports nested variables" >&5
+$as_echo_n "checking whether $am_make supports nested variables... " >&6; }
+if ${am_cv_make_support_nested_variables+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if $as_echo 'TRUE=$(BAR$(V))
+BAR0=false
+BAR1=true
+V=1
+am__doit:
+	@$(TRUE)
+.PHONY: am__doit' | $am_make -f - >/dev/null 2>&1; then
+  am_cv_make_support_nested_variables=yes
+else
+  am_cv_make_support_nested_variables=no
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_make_support_nested_variables" >&5
+$as_echo "$am_cv_make_support_nested_variables" >&6; }
+if test $am_cv_make_support_nested_variables = yes; then
+    AM_V='$(V)'
+  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
+else
+  AM_V=$AM_DEFAULT_VERBOSITY
+  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
+fi
+AM_BACKSLASH='\'
+
+
+
+ac_config_files="$ac_config_files Makefile presentproto.pc"
+
+cat >confcache <<\_ACEOF
+# This file is a shell script that caches the results of configure
+# tests run on this system so they can be shared between configure
+# scripts and configure runs, see configure's option --config-cache.
+# It is not useful on other systems.  If it contains results you don't
+# want to keep, you may remove or edit it.
+#
+# config.status only pays attention to the cache file if you give it
+# the --recheck option to rerun configure.
+#
+# `ac_cv_env_foo' variables (set or unset) will be overridden when
+# loading this file, other *unset* `ac_cv_foo' will be assigned the
+# following values.
+
+_ACEOF
+
+# The following way of writing the cache mishandles newlines in values,
+# but we know of no workaround that is simple, portable, and efficient.
+# So, we kill variables containing newlines.
+# Ultrix sh set writes to stderr and can't be redirected directly,
+# and sets the high bit in the cache file unless we assign to the vars.
+(
+  for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do
+    eval ac_val=\$$ac_var
+    case $ac_val in #(
+    *${as_nl}*)
+      case $ac_var in #(
+      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+      esac
+      case $ac_var in #(
+      _ | IFS | as_nl) ;; #(
+      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
+      *) { eval $ac_var=; unset $ac_var;} ;;
+      esac ;;
+    esac
+  done
+
+  (set) 2>&1 |
+    case $as_nl`(ac_space=' '; set) 2>&1` in #(
+    *${as_nl}ac_space=\ *)
+      # `set' does not quote correctly, so add quotes: double-quote
+      # substitution turns \\\\ into \\, and sed turns \\ into \.
+      sed -n \
+	"s/'/'\\\\''/g;
+	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
+      ;; #(
+    *)
+      # `set' quotes correctly as required by POSIX, so do not add quotes.
+      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
+      ;;
+    esac |
+    sort
+) |
+  sed '
+     /^ac_cv_env_/b end
+     t clear
+     :clear
+     s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
+     t end
+     s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
+     :end' >>confcache
+if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
+  if test -w "$cache_file"; then
+    if test "x$cache_file" != "x/dev/null"; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
+$as_echo "$as_me: updating cache $cache_file" >&6;}
+      if test ! -f "$cache_file" || test -h "$cache_file"; then
+	cat confcache >"$cache_file"
+      else
+        case $cache_file in #(
+        */* | ?:*)
+	  mv -f confcache "$cache_file"$$ &&
+	  mv -f "$cache_file"$$ "$cache_file" ;; #(
+        *)
+	  mv -f confcache "$cache_file" ;;
+	esac
+      fi
+    fi
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
+$as_echo "$as_me: not updating unwritable cache $cache_file" >&6;}
+  fi
+fi
+rm -f confcache
+
+test "x$prefix" = xNONE && prefix=$ac_default_prefix
+# Let make expand exec_prefix.
+test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
+
+# Transform confdefs.h into DEFS.
+# Protect against shell expansion while executing Makefile rules.
+# Protect against Makefile macro expansion.
+#
+# If the first sed substitution is executed (which looks for macros that
+# take arguments), then branch to the quote section.  Otherwise,
+# look for a macro that doesn't take arguments.
+ac_script='
+:mline
+/\\$/{
+ N
+ s,\\\n,,
+ b mline
+}
+t clear
+:clear
+s/^[	 ]*#[	 ]*define[	 ][	 ]*\([^	 (][^	 (]*([^)]*)\)[	 ]*\(.*\)/-D\1=\2/g
+t quote
+s/^[	 ]*#[	 ]*define[	 ][	 ]*\([^	 ][^	 ]*\)[	 ]*\(.*\)/-D\1=\2/g
+t quote
+b any
+:quote
+s/[	 `~#$^&*(){}\\|;'\''"<>?]/\\&/g
+s/\[/\\&/g
+s/\]/\\&/g
+s/\$/$$/g
+H
+:any
+${
+	g
+	s/^\n//
+	s/\n/ /g
+	p
+}
+'
+DEFS=`sed -n "$ac_script" confdefs.h`
+
+
+ac_libobjs=
+ac_ltlibobjs=
+U=
+for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
+  # 1. Remove the extension, and $U if already installed.
+  ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
+  ac_i=`$as_echo "$ac_i" | sed "$ac_script"`
+  # 2. Prepend LIBOBJDIR.  When used with automake>=1.10 LIBOBJDIR
+  #    will be set to the directory where LIBOBJS objects are built.
+  as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext"
+  as_fn_append ac_ltlibobjs " \${LIBOBJDIR}$ac_i"'$U.lo'
+done
+LIBOBJS=$ac_libobjs
+
+LTLIBOBJS=$ac_ltlibobjs
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking that generated files are newer than configure" >&5
+$as_echo_n "checking that generated files are newer than configure... " >&6; }
+   if test -n "$am_sleep_pid"; then
+     # Hide warnings about reused PIDs.
+     wait $am_sleep_pid 2>/dev/null
+   fi
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: done" >&5
+$as_echo "done" >&6; }
+ if test -n "$EXEEXT"; then
+  am__EXEEXT_TRUE=
+  am__EXEEXT_FALSE='#'
+else
+  am__EXEEXT_TRUE='#'
+  am__EXEEXT_FALSE=
+fi
+
+if test -z "${MAINTAINER_MODE_TRUE}" && test -z "${MAINTAINER_MODE_FALSE}"; then
+  as_fn_error $? "conditional \"MAINTAINER_MODE\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${AMDEP_TRUE}" && test -z "${AMDEP_FALSE}"; then
+  as_fn_error $? "conditional \"AMDEP\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${am__fastdepCC_TRUE}" && test -z "${am__fastdepCC_FALSE}"; then
+  as_fn_error $? "conditional \"am__fastdepCC\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+
+: "${CONFIG_STATUS=./config.status}"
+ac_write_fail=0
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files $CONFIG_STATUS"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
+$as_echo "$as_me: creating $CONFIG_STATUS" >&6;}
+as_write_fail=0
+cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1
+#! $SHELL
+# Generated by $as_me.
+# Run this file to recreate the current configuration.
+# Compiler output produced by configure, useful for debugging
+# configure, is in config.log if it exists.
+
+debug=false
+ac_cs_recheck=false
+ac_cs_silent=false
+
+SHELL=\${CONFIG_SHELL-$SHELL}
+export SHELL
+_ASEOF
+cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
+
+# Be more Bourne compatible
+DUALCASE=1; export DUALCASE # for MKS sh
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else
+  case `(set -o) 2>/dev/null` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+
+
+as_nl='
+'
+export as_nl
+# Printing a long string crashes Solaris 7 /usr/bin/printf.
+as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
+# Prefer a ksh shell builtin over an external printf program on Solaris,
+# but without wasting forks for bash or zsh.
+if test -z "$BASH_VERSION$ZSH_VERSION" \
+    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='print -r --'
+  as_echo_n='print -rn --'
+elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='printf %s\n'
+  as_echo_n='printf %s'
+else
+  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
+    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
+    as_echo_n='/usr/ucb/echo -n'
+  else
+    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
+    as_echo_n_body='eval
+      arg=$1;
+      case $arg in #(
+      *"$as_nl"*)
+	expr "X$arg" : "X\\(.*\\)$as_nl";
+	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
+      esac;
+      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
+    '
+    export as_echo_n_body
+    as_echo_n='sh -c $as_echo_n_body as_echo'
+  fi
+  export as_echo_body
+  as_echo='sh -c $as_echo_body as_echo'
+fi
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+  PATH_SEPARATOR=:
+  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
+    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
+      PATH_SEPARATOR=';'
+  }
+fi
+
+
+# IFS
+# We need space, tab and new line, in precisely that order.  Quoting is
+# there to prevent editors from complaining about space-tab.
+# (If _AS_PATH_WALK were called with IFS unset, it would disable word
+# splitting by setting IFS to empty value.)
+IFS=" ""	$as_nl"
+
+# Find who we are.  Look in the path if we contain no directory separator.
+as_myself=
+case $0 in #((
+  *[\\/]* ) as_myself=$0 ;;
+  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  done
+IFS=$as_save_IFS
+
+     ;;
+esac
+# We did not find ourselves, most probably we were run as `sh COMMAND'
+# in which case we are not to be found in the path.
+if test "x$as_myself" = x; then
+  as_myself=$0
+fi
+if test ! -f "$as_myself"; then
+  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  exit 1
+fi
+
+# Unset variables that we do not need and which cause bugs (e.g. in
+# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
+# suppresses any "Segmentation fault" message there.  '((' could
+# trigger a bug in pdksh 5.2.14.
+for as_var in BASH_ENV ENV MAIL MAILPATH
+do eval test x\${$as_var+set} = xset \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
+done
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+LC_ALL=C
+export LC_ALL
+LANGUAGE=C
+export LANGUAGE
+
+# CDPATH.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+
+# as_fn_error STATUS ERROR [LINENO LOG_FD]
+# ----------------------------------------
+# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
+# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
+# script with STATUS, using 1 if that was 0.
+as_fn_error ()
+{
+  as_status=$1; test $as_status -eq 0 && as_status=1
+  if test "$4"; then
+    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+  fi
+  $as_echo "$as_me: error: $2" >&2
+  as_fn_exit $as_status
+} # as_fn_error
+
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+
+# as_fn_unset VAR
+# ---------------
+# Portably unset VAR.
+as_fn_unset ()
+{
+  { eval $1=; unset $1;}
+}
+as_unset=as_fn_unset
+# as_fn_append VAR VALUE
+# ----------------------
+# Append the text in VALUE to the end of the definition contained in VAR. Take
+# advantage of any shell optimizations that allow amortized linear growth over
+# repeated appends, instead of the typical quadratic growth present in naive
+# implementations.
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+  eval 'as_fn_append ()
+  {
+    eval $1+=\$2
+  }'
+else
+  as_fn_append ()
+  {
+    eval $1=\$$1\$2
+  }
+fi # as_fn_append
+
+# as_fn_arith ARG...
+# ------------------
+# Perform arithmetic evaluation on the ARGs, and store the result in the
+# global $as_val. Take advantage of shells that can avoid forks. The arguments
+# must be portable across $(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+  eval 'as_fn_arith ()
+  {
+    as_val=$(( $* ))
+  }'
+else
+  as_fn_arith ()
+  {
+    as_val=`expr "$@" || test $? -eq 1`
+  }
+fi # as_fn_arith
+
+
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+  as_dirname=dirname
+else
+  as_dirname=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+ECHO_C= ECHO_N= ECHO_T=
+case `echo -n x` in #(((((
+-n*)
+  case `echo 'xy\c'` in
+  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
+  xy)  ECHO_C='\c';;
+  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
+       ECHO_T='	';;
+  esac;;
+*)
+  ECHO_N='-n';;
+esac
+
+rm -f conf$$ conf$$.exe conf$$.file
+if test -d conf$$.dir; then
+  rm -f conf$$.dir/conf$$.file
+else
+  rm -f conf$$.dir
+  mkdir conf$$.dir 2>/dev/null
+fi
+if (echo >conf$$.file) 2>/dev/null; then
+  if ln -s conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s='ln -s'
+    # ... but there are two gotchas:
+    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+    # In both cases, we have to default to `cp -pR'.
+    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+      as_ln_s='cp -pR'
+  elif ln conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s=ln
+  else
+    as_ln_s='cp -pR'
+  fi
+else
+  as_ln_s='cp -pR'
+fi
+rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+rmdir conf$$.dir 2>/dev/null
+
+
+# as_fn_mkdir_p
+# -------------
+# Create "$as_dir" as a directory, including parents if necessary.
+as_fn_mkdir_p ()
+{
+
+  case $as_dir in #(
+  -*) as_dir=./$as_dir;;
+  esac
+  test -d "$as_dir" || eval $as_mkdir_p || {
+    as_dirs=
+    while :; do
+      case $as_dir in #(
+      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *) as_qdir=$as_dir;;
+      esac
+      as_dirs="'$as_qdir' $as_dirs"
+      as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_dir" : 'X\(//\)[^/]' \| \
+	 X"$as_dir" : 'X\(//\)$' \| \
+	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      test -d "$as_dir" && break
+    done
+    test -z "$as_dirs" || eval "mkdir $as_dirs"
+  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
+
+
+} # as_fn_mkdir_p
+if mkdir -p . 2>/dev/null; then
+  as_mkdir_p='mkdir -p "$as_dir"'
+else
+  test -d ./-p && rmdir ./-p
+  as_mkdir_p=false
+fi
+
+
+# as_fn_executable_p FILE
+# -----------------------
+# Test if FILE is an executable regular file.
+as_fn_executable_p ()
+{
+  test -f "$1" && test -x "$1"
+} # as_fn_executable_p
+as_test_x='test -x'
+as_executable_p=as_fn_executable_p
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+
+
+exec 6>&1
+## ----------------------------------- ##
+## Main body of $CONFIG_STATUS script. ##
+## ----------------------------------- ##
+_ASEOF
+test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# Save the log message, to keep $0 and so on meaningful, and to
+# report actual input values of CONFIG_FILES etc. instead of their
+# values after options handling.
+ac_log="
+This file was extended by PresentProto $as_me 1.0, which was
+generated by GNU Autoconf 2.69.  Invocation command line was
+
+  CONFIG_FILES    = $CONFIG_FILES
+  CONFIG_HEADERS  = $CONFIG_HEADERS
+  CONFIG_LINKS    = $CONFIG_LINKS
+  CONFIG_COMMANDS = $CONFIG_COMMANDS
+  $ $0 $@
+
+on `(hostname || uname -n) 2>/dev/null | sed 1q`
+"
+
+_ACEOF
+
+case $ac_config_files in *"
+"*) set x $ac_config_files; shift; ac_config_files=$*;;
+esac
+
+
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+# Files that config.status was made for.
+config_files="$ac_config_files"
+config_commands="$ac_config_commands"
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+ac_cs_usage="\
+\`$as_me' instantiates files and other configuration actions
+from templates according to the current configuration.  Unless the files
+and actions are specified as TAGs, all are instantiated by default.
+
+Usage: $0 [OPTION]... [TAG]...
+
+  -h, --help       print this help, then exit
+  -V, --version    print version number and configuration settings, then exit
+      --config     print configuration, then exit
+  -q, --quiet, --silent
+                   do not print progress messages
+  -d, --debug      don't remove temporary files
+      --recheck    update $as_me by reconfiguring in the same conditions
+      --file=FILE[:TEMPLATE]
+                   instantiate the configuration file FILE
+
+Configuration files:
+$config_files
+
+Configuration commands:
+$config_commands
+
+Report bugs to <https://bugs.freedesktop.org/enter_bug.cgi?product=xorg>."
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
+ac_cs_version="\\
+PresentProto config.status 1.0
+configured by $0, generated by GNU Autoconf 2.69,
+  with options \\"\$ac_cs_config\\"
+
+Copyright (C) 2012 Free Software Foundation, Inc.
+This config.status script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it."
+
+ac_pwd='$ac_pwd'
+srcdir='$srcdir'
+INSTALL='$INSTALL'
+MKDIR_P='$MKDIR_P'
+AWK='$AWK'
+test -n "\$AWK" || AWK=awk
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# The default lists apply if the user does not specify any file.
+ac_need_defaults=:
+while test $# != 0
+do
+  case $1 in
+  --*=?*)
+    ac_option=`expr "X$1" : 'X\([^=]*\)='`
+    ac_optarg=`expr "X$1" : 'X[^=]*=\(.*\)'`
+    ac_shift=:
+    ;;
+  --*=)
+    ac_option=`expr "X$1" : 'X\([^=]*\)='`
+    ac_optarg=
+    ac_shift=:
+    ;;
+  *)
+    ac_option=$1
+    ac_optarg=$2
+    ac_shift=shift
+    ;;
+  esac
+
+  case $ac_option in
+  # Handling of the options.
+  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
+    ac_cs_recheck=: ;;
+  --version | --versio | --versi | --vers | --ver | --ve | --v | -V )
+    $as_echo "$ac_cs_version"; exit ;;
+  --config | --confi | --conf | --con | --co | --c )
+    $as_echo "$ac_cs_config"; exit ;;
+  --debug | --debu | --deb | --de | --d | -d )
+    debug=: ;;
+  --file | --fil | --fi | --f )
+    $ac_shift
+    case $ac_optarg in
+    *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    '') as_fn_error $? "missing file argument" ;;
+    esac
+    as_fn_append CONFIG_FILES " '$ac_optarg'"
+    ac_need_defaults=false;;
+  --he | --h |  --help | --hel | -h )
+    $as_echo "$ac_cs_usage"; exit ;;
+  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+  | -silent | --silent | --silen | --sile | --sil | --si | --s)
+    ac_cs_silent=: ;;
+
+  # This is an error.
+  -*) as_fn_error $? "unrecognized option: \`$1'
+Try \`$0 --help' for more information." ;;
+
+  *) as_fn_append ac_config_targets " $1"
+     ac_need_defaults=false ;;
+
+  esac
+  shift
+done
+
+ac_configure_extra_args=
+
+if $ac_cs_silent; then
+  exec 6>/dev/null
+  ac_configure_extra_args="$ac_configure_extra_args --silent"
+fi
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+if \$ac_cs_recheck; then
+  set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
+  shift
+  \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6
+  CONFIG_SHELL='$SHELL'
+  export CONFIG_SHELL
+  exec "\$@"
+fi
+
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+exec 5>>config.log
+{
+  echo
+  sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
+## Running $as_me. ##
+_ASBOX
+  $as_echo "$ac_log"
+} >&5
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+#
+# INIT-COMMANDS
+#
+AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+
+# Handling of arguments.
+for ac_config_target in $ac_config_targets
+do
+  case $ac_config_target in
+    "depfiles") CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;;
+    "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
+    "presentproto.pc") CONFIG_FILES="$CONFIG_FILES presentproto.pc" ;;
+
+  *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
+  esac
+done
+
+
+# If the user did not use the arguments to specify the items to instantiate,
+# then the envvar interface is used.  Set only those that are not.
+# We use the long form for the default assignment because of an extremely
+# bizarre bug on SunOS 4.1.3.
+if $ac_need_defaults; then
+  test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
+  test "${CONFIG_COMMANDS+set}" = set || CONFIG_COMMANDS=$config_commands
+fi
+
+# Have a temporary directory for convenience.  Make it in the build tree
+# simply because there is no reason against having it here, and in addition,
+# creating and moving files from /tmp can sometimes cause problems.
+# Hook for its removal unless debugging.
+# Note that there is a small window in which the directory will not be cleaned:
+# after its creation but before its name has been assigned to `$tmp'.
+$debug ||
+{
+  tmp= ac_tmp=
+  trap 'exit_status=$?
+  : "${ac_tmp:=$tmp}"
+  { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status
+' 0
+  trap 'as_fn_exit 1' 1 2 13 15
+}
+# Create a (secure) tmp directory for tmp files.
+
+{
+  tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` &&
+  test -d "$tmp"
+}  ||
+{
+  tmp=./conf$$-$RANDOM
+  (umask 077 && mkdir "$tmp")
+} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5
+ac_tmp=$tmp
+
+# Set up the scripts for CONFIG_FILES section.
+# No need to generate them if there are no CONFIG_FILES.
+# This happens for instance with `./config.status config.h'.
+if test -n "$CONFIG_FILES"; then
+
+
+ac_cr=`echo X | tr X '\015'`
+# On cygwin, bash can eat \r inside `` if the user requested igncr.
+# But we know of no other shell where ac_cr would be empty at this
+# point, so we can use a bashism as a fallback.
+if test "x$ac_cr" = x; then
+  eval ac_cr=\$\'\\r\'
+fi
+ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' </dev/null 2>/dev/null`
+if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then
+  ac_cs_awk_cr='\\r'
+else
+  ac_cs_awk_cr=$ac_cr
+fi
+
+echo 'BEGIN {' >"$ac_tmp/subs1.awk" &&
+_ACEOF
+
+
+{
+  echo "cat >conf$$subs.awk <<_ACEOF" &&
+  echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' &&
+  echo "_ACEOF"
+} >conf$$subs.sh ||
+  as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'`
+ac_delim='%!_!# '
+for ac_last_try in false false false false false :; do
+  . ./conf$$subs.sh ||
+    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+
+  ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X`
+  if test $ac_delim_n = $ac_delim_num; then
+    break
+  elif $ac_last_try; then
+    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+  else
+    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
+  fi
+done
+rm -f conf$$subs.sh
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK &&
+_ACEOF
+sed -n '
+h
+s/^/S["/; s/!.*/"]=/
+p
+g
+s/^[^!]*!//
+:repl
+t repl
+s/'"$ac_delim"'$//
+t delim
+:nl
+h
+s/\(.\{148\}\)..*/\1/
+t more1
+s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/
+p
+n
+b repl
+:more1
+s/["\\]/\\&/g; s/^/"/; s/$/"\\/
+p
+g
+s/.\{148\}//
+t nl
+:delim
+h
+s/\(.\{148\}\)..*/\1/
+t more2
+s/["\\]/\\&/g; s/^/"/; s/$/"/
+p
+b
+:more2
+s/["\\]/\\&/g; s/^/"/; s/$/"\\/
+p
+g
+s/.\{148\}//
+t delim
+' <conf$$subs.awk | sed '
+/^[^""]/{
+  N
+  s/\n//
+}
+' >>$CONFIG_STATUS || ac_write_fail=1
+rm -f conf$$subs.awk
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+_ACAWK
+cat >>"\$ac_tmp/subs1.awk" <<_ACAWK &&
+  for (key in S) S_is_set[key] = 1
+  FS = ""
+
+}
+{
+  line = $ 0
+  nfields = split(line, field, "@")
+  substed = 0
+  len = length(field[1])
+  for (i = 2; i < nfields; i++) {
+    key = field[i]
+    keylen = length(key)
+    if (S_is_set[key]) {
+      value = S[key]
+      line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3)
+      len += length(value) + length(field[++i])
+      substed = 1
+    } else
+      len += 1 + keylen
+  }
+
+  print line
+}
+
+_ACAWK
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then
+  sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g"
+else
+  cat
+fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \
+  || as_fn_error $? "could not setup config files machinery" "$LINENO" 5
+_ACEOF
+
+# VPATH may cause trouble with some makes, so we remove sole $(srcdir),
+# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and
+# trailing colons and then remove the whole line if VPATH becomes empty
+# (actually we leave an empty line to preserve line numbers).
+if test "x$srcdir" = x.; then
+  ac_vpsub='/^[	 ]*VPATH[	 ]*=[	 ]*/{
+h
+s///
+s/^/:/
+s/[	 ]*$/:/
+s/:\$(srcdir):/:/g
+s/:\${srcdir}:/:/g
+s/:@srcdir@:/:/g
+s/^:*//
+s/:*$//
+x
+s/\(=[	 ]*\).*/\1/
+G
+s/\n//
+s/^[^=]*=[	 ]*$//
+}'
+fi
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+fi # test -n "$CONFIG_FILES"
+
+
+eval set X "  :F $CONFIG_FILES      :C $CONFIG_COMMANDS"
+shift
+for ac_tag
+do
+  case $ac_tag in
+  :[FHLC]) ac_mode=$ac_tag; continue;;
+  esac
+  case $ac_mode$ac_tag in
+  :[FHL]*:*);;
+  :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;;
+  :[FH]-) ac_tag=-:-;;
+  :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
+  esac
+  ac_save_IFS=$IFS
+  IFS=:
+  set x $ac_tag
+  IFS=$ac_save_IFS
+  shift
+  ac_file=$1
+  shift
+
+  case $ac_mode in
+  :L) ac_source=$1;;
+  :[FH])
+    ac_file_inputs=
+    for ac_f
+    do
+      case $ac_f in
+      -) ac_f="$ac_tmp/stdin";;
+      *) # Look for the file first in the build tree, then in the source tree
+	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
+	 # because $ac_f cannot contain `:'.
+	 test -f "$ac_f" ||
+	   case $ac_f in
+	   [\\/$]*) false;;
+	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
+	   esac ||
+	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
+      esac
+      case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
+      as_fn_append ac_file_inputs " '$ac_f'"
+    done
+
+    # Let's still pretend it is `configure' which instantiates (i.e., don't
+    # use $as_me), people would be surprised to read:
+    #    /* config.h.  Generated by config.status.  */
+    configure_input='Generated from '`
+	  $as_echo "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
+	`' by configure.'
+    if test x"$ac_file" != x-; then
+      configure_input="$ac_file.  $configure_input"
+      { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
+$as_echo "$as_me: creating $ac_file" >&6;}
+    fi
+    # Neutralize special characters interpreted by sed in replacement strings.
+    case $configure_input in #(
+    *\&* | *\|* | *\\* )
+       ac_sed_conf_input=`$as_echo "$configure_input" |
+       sed 's/[\\\\&|]/\\\\&/g'`;; #(
+    *) ac_sed_conf_input=$configure_input;;
+    esac
+
+    case $ac_tag in
+    *:-:* | *:-) cat >"$ac_tmp/stdin" \
+      || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;;
+    esac
+    ;;
+  esac
+
+  ac_dir=`$as_dirname -- "$ac_file" ||
+$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$ac_file" : 'X\(//\)[^/]' \| \
+	 X"$ac_file" : 'X\(//\)$' \| \
+	 X"$ac_file" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$ac_file" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+  as_dir="$ac_dir"; as_fn_mkdir_p
+  ac_builddir=.
+
+case "$ac_dir" in
+.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
+*)
+  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
+  # A ".." for each directory in $ac_dir_suffix.
+  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  case $ac_top_builddir_sub in
+  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
+  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
+  esac ;;
+esac
+ac_abs_top_builddir=$ac_pwd
+ac_abs_builddir=$ac_pwd$ac_dir_suffix
+# for backward compatibility:
+ac_top_builddir=$ac_top_build_prefix
+
+case $srcdir in
+  .)  # We are building in place.
+    ac_srcdir=.
+    ac_top_srcdir=$ac_top_builddir_sub
+    ac_abs_top_srcdir=$ac_pwd ;;
+  [\\/]* | ?:[\\/]* )  # Absolute name.
+    ac_srcdir=$srcdir$ac_dir_suffix;
+    ac_top_srcdir=$srcdir
+    ac_abs_top_srcdir=$srcdir ;;
+  *) # Relative name.
+    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
+    ac_top_srcdir=$ac_top_build_prefix$srcdir
+    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
+esac
+ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
+
+
+  case $ac_mode in
+  :F)
+  #
+  # CONFIG_FILE
+  #
+
+  case $INSTALL in
+  [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;;
+  *) ac_INSTALL=$ac_top_build_prefix$INSTALL ;;
+  esac
+  ac_MKDIR_P=$MKDIR_P
+  case $MKDIR_P in
+  [\\/$]* | ?:[\\/]* ) ;;
+  */*) ac_MKDIR_P=$ac_top_build_prefix$MKDIR_P ;;
+  esac
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# If the template does not know about datarootdir, expand it.
+# FIXME: This hack should be removed a few years after 2.60.
+ac_datarootdir_hack=; ac_datarootdir_seen=
+ac_sed_dataroot='
+/datarootdir/ {
+  p
+  q
+}
+/@datadir@/p
+/@docdir@/p
+/@infodir@/p
+/@localedir@/p
+/@mandir@/p'
+case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
+*datarootdir*) ac_datarootdir_seen=yes;;
+*@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
+$as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+  ac_datarootdir_hack='
+  s&@datadir@&$datadir&g
+  s&@docdir@&$docdir&g
+  s&@infodir@&$infodir&g
+  s&@localedir@&$localedir&g
+  s&@mandir@&$mandir&g
+  s&\\\${datarootdir}&$datarootdir&g' ;;
+esac
+_ACEOF
+
+# Neutralize VPATH when `$srcdir' = `.'.
+# Shell code in configure.ac might set extrasub.
+# FIXME: do we really want to maintain this feature?
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ac_sed_extra="$ac_vpsub
+$extrasub
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+:t
+/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
+s|@configure_input@|$ac_sed_conf_input|;t t
+s&@top_builddir@&$ac_top_builddir_sub&;t t
+s&@top_build_prefix@&$ac_top_build_prefix&;t t
+s&@srcdir@&$ac_srcdir&;t t
+s&@abs_srcdir@&$ac_abs_srcdir&;t t
+s&@top_srcdir@&$ac_top_srcdir&;t t
+s&@abs_top_srcdir@&$ac_abs_top_srcdir&;t t
+s&@builddir@&$ac_builddir&;t t
+s&@abs_builddir@&$ac_abs_builddir&;t t
+s&@abs_top_builddir@&$ac_abs_top_builddir&;t t
+s&@INSTALL@&$ac_INSTALL&;t t
+s&@MKDIR_P@&$ac_MKDIR_P&;t t
+$ac_datarootdir_hack
+"
+eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$ac_tmp/subs.awk" \
+  >$ac_tmp/out || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+
+test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
+  { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
+  { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
+      "$ac_tmp/out"`; test -z "$ac_out"; } &&
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+which seems to be undefined.  Please make sure it is defined" >&5
+$as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+which seems to be undefined.  Please make sure it is defined" >&2;}
+
+  rm -f "$ac_tmp/stdin"
+  case $ac_file in
+  -) cat "$ac_tmp/out" && rm -f "$ac_tmp/out";;
+  *) rm -f "$ac_file" && mv "$ac_tmp/out" "$ac_file";;
+  esac \
+  || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+ ;;
+
+
+  :C)  { $as_echo "$as_me:${as_lineno-$LINENO}: executing $ac_file commands" >&5
+$as_echo "$as_me: executing $ac_file commands" >&6;}
+ ;;
+  esac
+
+
+  case $ac_file$ac_mode in
+    "depfiles":C) test x"$AMDEP_TRUE" != x"" || {
+  # Older Autoconf quotes --file arguments for eval, but not when files
+  # are listed without --file.  Let's play safe and only enable the eval
+  # if we detect the quoting.
+  case $CONFIG_FILES in
+  *\'*) eval set x "$CONFIG_FILES" ;;
+  *)   set x $CONFIG_FILES ;;
+  esac
+  shift
+  for mf
+  do
+    # Strip MF so we end up with the name of the file.
+    mf=`echo "$mf" | sed -e 's/:.*$//'`
+    # Check whether this is an Automake generated Makefile or not.
+    # We used to match only the files named 'Makefile.in', but
+    # some people rename them; so instead we look at the file content.
+    # Grep'ing the first line is not enough: some people post-process
+    # each Makefile.in and add a new line on top of each file to say so.
+    # Grep'ing the whole file is not good either: AIX grep has a line
+    # limit of 2048, but all sed's we know have understand at least 4000.
+    if sed -n 's,^#.*generated by automake.*,X,p' "$mf" | grep X >/dev/null 2>&1; then
+      dirpart=`$as_dirname -- "$mf" ||
+$as_expr X"$mf" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$mf" : 'X\(//\)[^/]' \| \
+	 X"$mf" : 'X\(//\)$' \| \
+	 X"$mf" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$mf" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+    else
+      continue
+    fi
+    # Extract the definition of DEPDIR, am__include, and am__quote
+    # from the Makefile without running 'make'.
+    DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
+    test -z "$DEPDIR" && continue
+    am__include=`sed -n 's/^am__include = //p' < "$mf"`
+    test -z "$am__include" && continue
+    am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
+    # Find all dependency output files, they are included files with
+    # $(DEPDIR) in their names.  We invoke sed twice because it is the
+    # simplest approach to changing $(DEPDIR) to its actual value in the
+    # expansion.
+    for file in `sed -n "
+      s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
+	 sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g'`; do
+      # Make sure the directory exists.
+      test -f "$dirpart/$file" && continue
+      fdir=`$as_dirname -- "$file" ||
+$as_expr X"$file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$file" : 'X\(//\)[^/]' \| \
+	 X"$file" : 'X\(//\)$' \| \
+	 X"$file" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$file" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      as_dir=$dirpart/$fdir; as_fn_mkdir_p
+      # echo "creating $dirpart/$file"
+      echo '# dummy' > "$dirpart/$file"
+    done
+  done
+}
+ ;;
+
+  esac
+done # for ac_tag
+
+
+as_fn_exit 0
+_ACEOF
+ac_clean_files=$ac_clean_files_save
+
+test $ac_write_fail = 0 ||
+  as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5
+
+
+# configure is writing to config.log, and then calls config.status.
+# config.status does its own redirection, appending to config.log.
+# Unfortunately, on DOS this fails, as config.log is still kept open
+# by configure, so config.status won't be able to write to it; its
+# output is simply discarded.  So we exec the FD to /dev/null,
+# effectively closing config.log, so it can be properly (re)opened and
+# appended to by config.status.  When coming back to configure, we
+# need to make the FD available again.
+if test "$no_create" != yes; then
+  ac_cs_success=:
+  ac_config_status_args=
+  test "$silent" = yes &&
+    ac_config_status_args="$ac_config_status_args --quiet"
+  exec 5>/dev/null
+  $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
+  exec 5>>config.log
+  # Use ||, not &&, to avoid exiting from the if with $? = 1, which
+  # would make configure fail if this is the last instruction.
+  $ac_cs_success || as_fn_exit 1
+fi
+if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
+$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
+fi
+
diff --git a/proto/presentproto/configure.ac b/proto/presentproto/configure.ac
new file mode 100644
index 000000000..2363d3097
--- /dev/null
+++ b/proto/presentproto/configure.ac
@@ -0,0 +1,13 @@
+AC_PREREQ([2.60])
+AC_INIT([PresentProto], [1.0], [https://bugs.freedesktop.org/enter_bug.cgi?product=xorg])
+AM_INIT_AUTOMAKE([foreign dist-bzip2])
+AM_MAINTAINER_MODE
+
+# Require xorg-macros: XORG_DEFAULT_OPTIONS
+m4_ifndef([XORG_MACROS_VERSION],
+          [m4_fatal([must install xorg-macros 1.3 or later before running autoconf/autogen])])
+XORG_MACROS_VERSION(1.3)
+XORG_DEFAULT_OPTIONS
+
+AC_OUTPUT([Makefile
+           presentproto.pc])
diff --git a/proto/presentproto/install-sh b/proto/presentproto/install-sh
new file mode 100644
index 000000000..377bb8687
--- /dev/null
+++ b/proto/presentproto/install-sh
@@ -0,0 +1,527 @@
+#!/bin/sh
+# install - install a program, script, or datafile
+
+scriptversion=2011-11-20.07; # UTC
+
+# This originates from X11R5 (mit/util/scripts/install.sh), which was
+# later released in X11R6 (xc/config/util/install.sh) with the
+# following copyright and license.
+#
+# Copyright (C) 1994 X Consortium
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to
+# deal in the Software without restriction, including without limitation the
+# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+# sell copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
+# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+# Except as contained in this notice, the name of the X Consortium shall not
+# be used in advertising or otherwise to promote the sale, use or other deal-
+# ings in this Software without prior written authorization from the X Consor-
+# tium.
+#
+#
+# FSF changes to this file are in the public domain.
+#
+# Calling this script install-sh is preferred over install.sh, to prevent
+# 'make' implicit rules from creating a file called install from it
+# when there is no Makefile.
+#
+# This script is compatible with the BSD install script, but was written
+# from scratch.
+
+nl='
+'
+IFS=" ""	$nl"
+
+# set DOITPROG to echo to test this script
+
+# Don't use :- since 4.3BSD and earlier shells don't like it.
+doit=${DOITPROG-}
+if test -z "$doit"; then
+  doit_exec=exec
+else
+  doit_exec=$doit
+fi
+
+# Put in absolute file names if you don't have them in your path;
+# or use environment vars.
+
+chgrpprog=${CHGRPPROG-chgrp}
+chmodprog=${CHMODPROG-chmod}
+chownprog=${CHOWNPROG-chown}
+cmpprog=${CMPPROG-cmp}
+cpprog=${CPPROG-cp}
+mkdirprog=${MKDIRPROG-mkdir}
+mvprog=${MVPROG-mv}
+rmprog=${RMPROG-rm}
+stripprog=${STRIPPROG-strip}
+
+posix_glob='?'
+initialize_posix_glob='
+  test "$posix_glob" != "?" || {
+    if (set -f) 2>/dev/null; then
+      posix_glob=
+    else
+      posix_glob=:
+    fi
+  }
+'
+
+posix_mkdir=
+
+# Desired mode of installed file.
+mode=0755
+
+chgrpcmd=
+chmodcmd=$chmodprog
+chowncmd=
+mvcmd=$mvprog
+rmcmd="$rmprog -f"
+stripcmd=
+
+src=
+dst=
+dir_arg=
+dst_arg=
+
+copy_on_change=false
+no_target_directory=
+
+usage="\
+Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
+   or: $0 [OPTION]... SRCFILES... DIRECTORY
+   or: $0 [OPTION]... -t DIRECTORY SRCFILES...
+   or: $0 [OPTION]... -d DIRECTORIES...
+
+In the 1st form, copy SRCFILE to DSTFILE.
+In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
+In the 4th, create DIRECTORIES.
+
+Options:
+     --help     display this help and exit.
+     --version  display version info and exit.
+
+  -c            (ignored)
+  -C            install only if different (preserve the last data modification time)
+  -d            create directories instead of installing files.
+  -g GROUP      $chgrpprog installed files to GROUP.
+  -m MODE       $chmodprog installed files to MODE.
+  -o USER       $chownprog installed files to USER.
+  -s            $stripprog installed files.
+  -t DIRECTORY  install into DIRECTORY.
+  -T            report an error if DSTFILE is a directory.
+
+Environment variables override the default commands:
+  CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
+  RMPROG STRIPPROG
+"
+
+while test $# -ne 0; do
+  case $1 in
+    -c) ;;
+
+    -C) copy_on_change=true;;
+
+    -d) dir_arg=true;;
+
+    -g) chgrpcmd="$chgrpprog $2"
+	shift;;
+
+    --help) echo "$usage"; exit $?;;
+
+    -m) mode=$2
+	case $mode in
+	  *' '* | *'	'* | *'
+'*	  | *'*'* | *'?'* | *'['*)
+	    echo "$0: invalid mode: $mode" >&2
+	    exit 1;;
+	esac
+	shift;;
+
+    -o) chowncmd="$chownprog $2"
+	shift;;
+
+    -s) stripcmd=$stripprog;;
+
+    -t) dst_arg=$2
+	# Protect names problematic for 'test' and other utilities.
+	case $dst_arg in
+	  -* | [=\(\)!]) dst_arg=./$dst_arg;;
+	esac
+	shift;;
+
+    -T) no_target_directory=true;;
+
+    --version) echo "$0 $scriptversion"; exit $?;;
+
+    --)	shift
+	break;;
+
+    -*)	echo "$0: invalid option: $1" >&2
+	exit 1;;
+
+    *)  break;;
+  esac
+  shift
+done
+
+if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
+  # When -d is used, all remaining arguments are directories to create.
+  # When -t is used, the destination is already specified.
+  # Otherwise, the last argument is the destination.  Remove it from $@.
+  for arg
+  do
+    if test -n "$dst_arg"; then
+      # $@ is not empty: it contains at least $arg.
+      set fnord "$@" "$dst_arg"
+      shift # fnord
+    fi
+    shift # arg
+    dst_arg=$arg
+    # Protect names problematic for 'test' and other utilities.
+    case $dst_arg in
+      -* | [=\(\)!]) dst_arg=./$dst_arg;;
+    esac
+  done
+fi
+
+if test $# -eq 0; then
+  if test -z "$dir_arg"; then
+    echo "$0: no input file specified." >&2
+    exit 1
+  fi
+  # It's OK to call 'install-sh -d' without argument.
+  # This can happen when creating conditional directories.
+  exit 0
+fi
+
+if test -z "$dir_arg"; then
+  do_exit='(exit $ret); exit $ret'
+  trap "ret=129; $do_exit" 1
+  trap "ret=130; $do_exit" 2
+  trap "ret=141; $do_exit" 13
+  trap "ret=143; $do_exit" 15
+
+  # Set umask so as not to create temps with too-generous modes.
+  # However, 'strip' requires both read and write access to temps.
+  case $mode in
+    # Optimize common cases.
+    *644) cp_umask=133;;
+    *755) cp_umask=22;;
+
+    *[0-7])
+      if test -z "$stripcmd"; then
+	u_plus_rw=
+      else
+	u_plus_rw='% 200'
+      fi
+      cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
+    *)
+      if test -z "$stripcmd"; then
+	u_plus_rw=
+      else
+	u_plus_rw=,u+rw
+      fi
+      cp_umask=$mode$u_plus_rw;;
+  esac
+fi
+
+for src
+do
+  # Protect names problematic for 'test' and other utilities.
+  case $src in
+    -* | [=\(\)!]) src=./$src;;
+  esac
+
+  if test -n "$dir_arg"; then
+    dst=$src
+    dstdir=$dst
+    test -d "$dstdir"
+    dstdir_status=$?
+  else
+
+    # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
+    # might cause directories to be created, which would be especially bad
+    # if $src (and thus $dsttmp) contains '*'.
+    if test ! -f "$src" && test ! -d "$src"; then
+      echo "$0: $src does not exist." >&2
+      exit 1
+    fi
+
+    if test -z "$dst_arg"; then
+      echo "$0: no destination specified." >&2
+      exit 1
+    fi
+    dst=$dst_arg
+
+    # If destination is a directory, append the input filename; won't work
+    # if double slashes aren't ignored.
+    if test -d "$dst"; then
+      if test -n "$no_target_directory"; then
+	echo "$0: $dst_arg: Is a directory" >&2
+	exit 1
+      fi
+      dstdir=$dst
+      dst=$dstdir/`basename "$src"`
+      dstdir_status=0
+    else
+      # Prefer dirname, but fall back on a substitute if dirname fails.
+      dstdir=`
+	(dirname "$dst") 2>/dev/null ||
+	expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	     X"$dst" : 'X\(//\)[^/]' \| \
+	     X"$dst" : 'X\(//\)$' \| \
+	     X"$dst" : 'X\(/\)' \| . 2>/dev/null ||
+	echo X"$dst" |
+	    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+		   s//\1/
+		   q
+		 }
+		 /^X\(\/\/\)[^/].*/{
+		   s//\1/
+		   q
+		 }
+		 /^X\(\/\/\)$/{
+		   s//\1/
+		   q
+		 }
+		 /^X\(\/\).*/{
+		   s//\1/
+		   q
+		 }
+		 s/.*/./; q'
+      `
+
+      test -d "$dstdir"
+      dstdir_status=$?
+    fi
+  fi
+
+  obsolete_mkdir_used=false
+
+  if test $dstdir_status != 0; then
+    case $posix_mkdir in
+      '')
+	# Create intermediate dirs using mode 755 as modified by the umask.
+	# This is like FreeBSD 'install' as of 1997-10-28.
+	umask=`umask`
+	case $stripcmd.$umask in
+	  # Optimize common cases.
+	  *[2367][2367]) mkdir_umask=$umask;;
+	  .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
+
+	  *[0-7])
+	    mkdir_umask=`expr $umask + 22 \
+	      - $umask % 100 % 40 + $umask % 20 \
+	      - $umask % 10 % 4 + $umask % 2
+	    `;;
+	  *) mkdir_umask=$umask,go-w;;
+	esac
+
+	# With -d, create the new directory with the user-specified mode.
+	# Otherwise, rely on $mkdir_umask.
+	if test -n "$dir_arg"; then
+	  mkdir_mode=-m$mode
+	else
+	  mkdir_mode=
+	fi
+
+	posix_mkdir=false
+	case $umask in
+	  *[123567][0-7][0-7])
+	    # POSIX mkdir -p sets u+wx bits regardless of umask, which
+	    # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
+	    ;;
+	  *)
+	    tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
+	    trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
+
+	    if (umask $mkdir_umask &&
+		exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
+	    then
+	      if test -z "$dir_arg" || {
+		   # Check for POSIX incompatibilities with -m.
+		   # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
+		   # other-writable bit of parent directory when it shouldn't.
+		   # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
+		   ls_ld_tmpdir=`ls -ld "$tmpdir"`
+		   case $ls_ld_tmpdir in
+		     d????-?r-*) different_mode=700;;
+		     d????-?--*) different_mode=755;;
+		     *) false;;
+		   esac &&
+		   $mkdirprog -m$different_mode -p -- "$tmpdir" && {
+		     ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
+		     test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
+		   }
+		 }
+	      then posix_mkdir=:
+	      fi
+	      rmdir "$tmpdir/d" "$tmpdir"
+	    else
+	      # Remove any dirs left behind by ancient mkdir implementations.
+	      rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
+	    fi
+	    trap '' 0;;
+	esac;;
+    esac
+
+    if
+      $posix_mkdir && (
+	umask $mkdir_umask &&
+	$doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
+      )
+    then :
+    else
+
+      # The umask is ridiculous, or mkdir does not conform to POSIX,
+      # or it failed possibly due to a race condition.  Create the
+      # directory the slow way, step by step, checking for races as we go.
+
+      case $dstdir in
+	/*) prefix='/';;
+	[-=\(\)!]*) prefix='./';;
+	*)  prefix='';;
+      esac
+
+      eval "$initialize_posix_glob"
+
+      oIFS=$IFS
+      IFS=/
+      $posix_glob set -f
+      set fnord $dstdir
+      shift
+      $posix_glob set +f
+      IFS=$oIFS
+
+      prefixes=
+
+      for d
+      do
+	test X"$d" = X && continue
+
+	prefix=$prefix$d
+	if test -d "$prefix"; then
+	  prefixes=
+	else
+	  if $posix_mkdir; then
+	    (umask=$mkdir_umask &&
+	     $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
+	    # Don't fail if two instances are running concurrently.
+	    test -d "$prefix" || exit 1
+	  else
+	    case $prefix in
+	      *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
+	      *) qprefix=$prefix;;
+	    esac
+	    prefixes="$prefixes '$qprefix'"
+	  fi
+	fi
+	prefix=$prefix/
+      done
+
+      if test -n "$prefixes"; then
+	# Don't fail if two instances are running concurrently.
+	(umask $mkdir_umask &&
+	 eval "\$doit_exec \$mkdirprog $prefixes") ||
+	  test -d "$dstdir" || exit 1
+	obsolete_mkdir_used=true
+      fi
+    fi
+  fi
+
+  if test -n "$dir_arg"; then
+    { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
+    { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
+    { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
+      test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
+  else
+
+    # Make a couple of temp file names in the proper directory.
+    dsttmp=$dstdir/_inst.$$_
+    rmtmp=$dstdir/_rm.$$_
+
+    # Trap to clean up those temp files at exit.
+    trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
+
+    # Copy the file name to the temp name.
+    (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
+
+    # and set any options; do chmod last to preserve setuid bits.
+    #
+    # If any of these fail, we abort the whole thing.  If we want to
+    # ignore errors from any of these, just make sure not to ignore
+    # errors from the above "$doit $cpprog $src $dsttmp" command.
+    #
+    { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
+    { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
+    { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
+    { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
+
+    # If -C, don't bother to copy if it wouldn't change the file.
+    if $copy_on_change &&
+       old=`LC_ALL=C ls -dlL "$dst"	2>/dev/null` &&
+       new=`LC_ALL=C ls -dlL "$dsttmp"	2>/dev/null` &&
+
+       eval "$initialize_posix_glob" &&
+       $posix_glob set -f &&
+       set X $old && old=:$2:$4:$5:$6 &&
+       set X $new && new=:$2:$4:$5:$6 &&
+       $posix_glob set +f &&
+
+       test "$old" = "$new" &&
+       $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
+    then
+      rm -f "$dsttmp"
+    else
+      # Rename the file to the real destination.
+      $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
+
+      # The rename failed, perhaps because mv can't rename something else
+      # to itself, or perhaps because mv is so ancient that it does not
+      # support -f.
+      {
+	# Now remove or move aside any old file at destination location.
+	# We try this two ways since rm can't unlink itself on some
+	# systems and the destination file might be busy for other
+	# reasons.  In this case, the final cleanup might fail but the new
+	# file should still install successfully.
+	{
+	  test ! -f "$dst" ||
+	  $doit $rmcmd -f "$dst" 2>/dev/null ||
+	  { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
+	    { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
+	  } ||
+	  { echo "$0: cannot unlink or rename $dst" >&2
+	    (exit 1); exit 1
+	  }
+	} &&
+
+	# Now rename the file to the real destination.
+	$doit $mvcmd "$dsttmp" "$dst"
+      }
+    fi || exit 1
+
+    trap '' 0
+  fi
+done
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC"
+# time-stamp-end: "; # UTC"
+# End:
diff --git a/proto/presentproto/missing b/proto/presentproto/missing
new file mode 100644
index 000000000..cdea51493
--- /dev/null
+++ b/proto/presentproto/missing
@@ -0,0 +1,215 @@
+#! /bin/sh
+# Common wrapper for a few potentially missing GNU programs.
+
+scriptversion=2012-06-26.16; # UTC
+
+# Copyright (C) 1996-2013 Free Software Foundation, Inc.
+# Originally written by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+if test $# -eq 0; then
+  echo 1>&2 "Try '$0 --help' for more information"
+  exit 1
+fi
+
+case $1 in
+
+  --is-lightweight)
+    # Used by our autoconf macros to check whether the available missing
+    # script is modern enough.
+    exit 0
+    ;;
+
+  --run)
+    # Back-compat with the calling convention used by older automake.
+    shift
+    ;;
+
+  -h|--h|--he|--hel|--help)
+    echo "\
+$0 [OPTION]... PROGRAM [ARGUMENT]...
+
+Run 'PROGRAM [ARGUMENT]...', returning a proper advice when this fails due
+to PROGRAM being missing or too old.
+
+Options:
+  -h, --help      display this help and exit
+  -v, --version   output version information and exit
+
+Supported PROGRAM values:
+  aclocal   autoconf  autoheader   autom4te  automake  makeinfo
+  bison     yacc      flex         lex       help2man
+
+Version suffixes to PROGRAM as well as the prefixes 'gnu-', 'gnu', and
+'g' are ignored when checking the name.
+
+Send bug reports to <bug-automake@gnu.org>."
+    exit $?
+    ;;
+
+  -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
+    echo "missing $scriptversion (GNU Automake)"
+    exit $?
+    ;;
+
+  -*)
+    echo 1>&2 "$0: unknown '$1' option"
+    echo 1>&2 "Try '$0 --help' for more information"
+    exit 1
+    ;;
+
+esac
+
+# Run the given program, remember its exit status.
+"$@"; st=$?
+
+# If it succeeded, we are done.
+test $st -eq 0 && exit 0
+
+# Also exit now if we it failed (or wasn't found), and '--version' was
+# passed; such an option is passed most likely to detect whether the
+# program is present and works.
+case $2 in --version|--help) exit $st;; esac
+
+# Exit code 63 means version mismatch.  This often happens when the user
+# tries to use an ancient version of a tool on a file that requires a
+# minimum version.
+if test $st -eq 63; then
+  msg="probably too old"
+elif test $st -eq 127; then
+  # Program was missing.
+  msg="missing on your system"
+else
+  # Program was found and executed, but failed.  Give up.
+  exit $st
+fi
+
+perl_URL=http://www.perl.org/
+flex_URL=http://flex.sourceforge.net/
+gnu_software_URL=http://www.gnu.org/software
+
+program_details ()
+{
+  case $1 in
+    aclocal|automake)
+      echo "The '$1' program is part of the GNU Automake package:"
+      echo "<$gnu_software_URL/automake>"
+      echo "It also requires GNU Autoconf, GNU m4 and Perl in order to run:"
+      echo "<$gnu_software_URL/autoconf>"
+      echo "<$gnu_software_URL/m4/>"
+      echo "<$perl_URL>"
+      ;;
+    autoconf|autom4te|autoheader)
+      echo "The '$1' program is part of the GNU Autoconf package:"
+      echo "<$gnu_software_URL/autoconf/>"
+      echo "It also requires GNU m4 and Perl in order to run:"
+      echo "<$gnu_software_URL/m4/>"
+      echo "<$perl_URL>"
+      ;;
+  esac
+}
+
+give_advice ()
+{
+  # Normalize program name to check for.
+  normalized_program=`echo "$1" | sed '
+    s/^gnu-//; t
+    s/^gnu//; t
+    s/^g//; t'`
+
+  printf '%s\n' "'$1' is $msg."
+
+  configure_deps="'configure.ac' or m4 files included by 'configure.ac'"
+  case $normalized_program in
+    autoconf*)
+      echo "You should only need it if you modified 'configure.ac',"
+      echo "or m4 files included by it."
+      program_details 'autoconf'
+      ;;
+    autoheader*)
+      echo "You should only need it if you modified 'acconfig.h' or"
+      echo "$configure_deps."
+      program_details 'autoheader'
+      ;;
+    automake*)
+      echo "You should only need it if you modified 'Makefile.am' or"
+      echo "$configure_deps."
+      program_details 'automake'
+      ;;
+    aclocal*)
+      echo "You should only need it if you modified 'acinclude.m4' or"
+      echo "$configure_deps."
+      program_details 'aclocal'
+      ;;
+   autom4te*)
+      echo "You might have modified some maintainer files that require"
+      echo "the 'automa4te' program to be rebuilt."
+      program_details 'autom4te'
+      ;;
+    bison*|yacc*)
+      echo "You should only need it if you modified a '.y' file."
+      echo "You may want to install the GNU Bison package:"
+      echo "<$gnu_software_URL/bison/>"
+      ;;
+    lex*|flex*)
+      echo "You should only need it if you modified a '.l' file."
+      echo "You may want to install the Fast Lexical Analyzer package:"
+      echo "<$flex_URL>"
+      ;;
+    help2man*)
+      echo "You should only need it if you modified a dependency" \
+           "of a man page."
+      echo "You may want to install the GNU Help2man package:"
+      echo "<$gnu_software_URL/help2man/>"
+    ;;
+    makeinfo*)
+      echo "You should only need it if you modified a '.texi' file, or"
+      echo "any other file indirectly affecting the aspect of the manual."
+      echo "You might want to install the Texinfo package:"
+      echo "<$gnu_software_URL/texinfo/>"
+      echo "The spurious makeinfo call might also be the consequence of"
+      echo "using a buggy 'make' (AIX, DU, IRIX), in which case you might"
+      echo "want to install GNU make:"
+      echo "<$gnu_software_URL/make/>"
+      ;;
+    *)
+      echo "You might have modified some files without having the proper"
+      echo "tools for further handling them.  Check the 'README' file, it"
+      echo "often tells you about the needed prerequisites for installing"
+      echo "this package.  You may also peek at any GNU archive site, in"
+      echo "case some other package contains this missing '$1' program."
+      ;;
+  esac
+}
+
+give_advice "$1" | sed -e '1s/^/WARNING: /' \
+                       -e '2,$s/^/         /' >&2
+
+# Propagate the correct exit status (expected to be 127 for a program
+# not found, 63 for a program that failed due to version mismatch).
+exit $st
+
+# Local variables:
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC"
+# time-stamp-end: "; # UTC"
+# End:
diff --git a/proto/presentproto/presentproto.h b/proto/presentproto/presentproto.h
new file mode 100644
index 000000000..8303a942f
--- /dev/null
+++ b/proto/presentproto/presentproto.h
@@ -0,0 +1,242 @@
+/*
+ * Copyright © 2013 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifndef _PRESENT_PROTO_H_
+#define _PRESENT_PROTO_H_
+
+#include <X11/extensions/presenttokens.h>
+
+#define Region CARD32
+#define XSyncFence CARD32
+#define EventID CARD32
+
+typedef struct {
+    Window  window B32;
+    CARD32  serial B32;
+} xPresentNotify;
+#define sz_xPresentNotify               8
+
+typedef struct {
+    CARD8   reqType;
+    CARD8   presentReqType;
+    CARD16  length B16;
+    CARD32  majorVersion B32;
+    CARD32  minorVersion B32;
+} xPresentQueryVersionReq;
+#define sz_xPresentQueryVersionReq   12
+
+typedef struct {
+    BYTE    type;   /* X_Reply */
+    BYTE    pad1;
+    CARD16  sequenceNumber B16;
+    CARD32  length B32;
+    CARD32  majorVersion B32;
+    CARD32  minorVersion B32;
+    CARD32  pad2 B32;
+    CARD32  pad3 B32;
+    CARD32  pad4 B32;
+    CARD32  pad5 B32;
+} xPresentQueryVersionReply;
+#define sz_xPresentQueryVersionReply	32
+
+typedef struct {
+    CARD8   reqType;
+    CARD8   presentReqType;
+    CARD16  length B16;
+    Window  window B32;
+
+    Pixmap  pixmap B32;
+    CARD32  serial B32;
+
+    Region  valid B32;
+    Region  update B32;
+
+    INT16   x_off B16;
+    INT16   y_off B16;
+    CARD32  target_crtc B32;
+
+    XSyncFence wait_fence B32;
+    XSyncFence idle_fence B32;
+
+    CARD32  options B32;
+    CARD32  pad1 B32;
+
+    CARD64  target_msc;
+    CARD64  divisor;
+    CARD64  remainder;
+    /* followed by a LISTofPRESENTNOTIFY */
+} xPresentPixmapReq;
+#define sz_xPresentPixmapReq	72
+
+typedef struct {
+    CARD8   reqType;
+    CARD8   presentReqType;
+    CARD16  length B16;
+    Window  window B32;
+
+    CARD32  serial B32;
+    CARD32  pad0 B32;
+
+    CARD64  target_msc;
+    CARD64  divisor;
+    CARD64  remainder;
+} xPresentNotifyMSCReq;
+#define sz_xPresentNotifyMSCReq	40
+
+typedef struct {
+    CARD8   reqType;
+    CARD8   presentReqType;
+    CARD16  length B16;
+    CARD32  eid B32;
+    CARD32  window B32;
+    CARD32  eventMask B32;
+} xPresentSelectInputReq;
+#define sz_xPresentSelectInputReq   16
+
+typedef struct {
+    CARD8   reqType;
+    CARD8   presentReqType;
+    CARD16  length B16;
+    CARD32  target B32;
+} xPresentQueryCapabilitiesReq;
+#define sz_xPresentQueryCapabilitiesReq   8
+
+typedef struct {
+    BYTE    type;   /* X_Reply */
+    BYTE    pad1;
+    CARD16  sequenceNumber B16;
+    CARD32  length B32;
+    CARD32  capabilities B32;
+    CARD32  pad3 B32;
+    CARD32  pad4 B32;
+    CARD32  pad5 B32;
+    CARD32  pad6 B32;
+    CARD32  pad7 B32;
+} xPresentQueryCapabilitiesReply;
+#define sz_xPresentQueryCapabilitiesReply       32
+
+/*
+ * Events
+ *
+ * All Present events are X Generic Events
+ */
+
+typedef struct {
+    CARD8 type;
+    CARD8 extension;
+    CARD16 sequenceNumber B16;
+    CARD32 length;
+    CARD16 evtype B16;
+    CARD16 pad2;
+    CARD32 eid B32;
+    CARD32 window B32;
+    INT16  x B16;
+    INT16  y B16;
+    CARD16 width B16;
+    CARD16 height B16;
+    INT16  off_x B16;
+    INT16  off_y B16;
+
+    CARD16 pixmap_width B16;
+    CARD16 pixmap_height B16;
+    CARD32 pixmap_flags B32;
+} xPresentConfigureNotify;
+#define sz_xPresentConfigureNotify 40
+
+typedef struct {
+    CARD8 type;
+    CARD8 extension;
+    CARD16 sequenceNumber B16;
+    CARD32 length;
+    CARD16 evtype B16;
+    CARD8  kind;
+    CARD8  mode;
+    CARD32 eid B32;
+    Window window B32;
+    CARD32 serial B32;
+    CARD64 ust;
+
+    CARD64 msc;
+} xPresentCompleteNotify;
+#define sz_xPresentCompleteNotify 40
+
+typedef struct {
+    CARD8 type;
+    CARD8 extension;
+    CARD16 sequenceNumber B16;
+    CARD32 length;
+    CARD16 evtype B16;
+    CARD16 pad2 B16;
+    CARD32 eid B32;
+    Window window B32;
+    CARD32 serial B32;
+    Pixmap pixmap B32;
+    CARD32 idle_fence B32;
+} xPresentIdleNotify;
+#define sz_xPresentIdleNotify   32
+
+typedef struct {
+    CARD8 type;
+    CARD8 extension;
+    CARD16 sequenceNumber B16;
+    CARD32 length;
+    CARD16 evtype B16;
+    CARD8 update_window;
+    CARD8 pad1;
+    CARD32 eid B32;
+    Window event_window B32;
+    Window window B32;
+    Pixmap pixmap B32;
+    CARD32 serial B32;
+    
+    /* 32-byte boundary */
+
+    Region valid_region B32;
+    Region update_region B32;
+
+    xRectangle valid_rect;
+
+    xRectangle update_rect;
+
+    INT16 x_off B16;
+    INT16 y_off B16;
+    CARD32 target_crtc B32;
+
+    XSyncFence wait_fence B32;
+    XSyncFence idle_fence B32;
+
+    CARD32 options B32;
+    CARD32 pad2 B32;
+
+    CARD64 target_msc;
+    CARD64 divisor;
+    CARD64 remainder;
+
+} xPresentRedirectNotify;
+
+#define sz_xPresentRedirectNotify 104
+
+#undef Region
+#undef XSyncFence
+#undef EventID
+
+#endif
diff --git a/proto/presentproto/presentproto.pc.in b/proto/presentproto/presentproto.pc.in
new file mode 100644
index 000000000..5d328e0a4
--- /dev/null
+++ b/proto/presentproto/presentproto.pc.in
@@ -0,0 +1,9 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+ 
+Name: PresentProto
+Description: Present extension headers
+Version: @PACKAGE_VERSION@
+Cflags: -I${includedir}
diff --git a/proto/presentproto/presentproto.txt b/proto/presentproto/presentproto.txt
new file mode 100644
index 000000000..2edcf8166
--- /dev/null
+++ b/proto/presentproto/presentproto.txt
@@ -0,0 +1,745 @@
+			The Present Extension
+			     Version 1.0
+			       2013-6-6
+      
+			    Keith Packard
+			  keithp@keithp.com
+			  Intel Corporation
+
+1. Introduction
+
+The Present extension provides a way for applications to update their
+window contents from a pixmap in a well defined fashion, synchronizing
+with the display refresh and potentially using a more efficient
+mechanism than copying the contents of the source pixmap.
+
+1.1. Acknowledgments
+
+Eric Anholt <eric@anholt.net>
+Owen Taylor <otaylor@redhat.com>
+James Jones <janomes@nvidia.com>
+
+			     ❄ ❄ ❄  ❄  ❄ ❄ ❄ 
+
+2. Data Types
+
+PRESENTEVENTID { XID }
+
+	Defines a unique event delivery target for Present
+	events. Multiple event IDs can be allocated to provide
+	multiple distinct event delivery contexts.
+
+PRESENTNOTIFY {
+	window: WINDOW
+	serial: CARD32
+	}
+
+	A list of these is passed to PresentPixmap; when the indicated
+	PresentPixmap completes, PresentCompletNotify events will be
+	delivered both to the PresentPixmap window/serial parameter as
+	well as each of the entries in the list of PRESENTNOTIFY parameter.
+
+PRESENTEVENTTYPE { PresentConfigureNotify,
+		   PresentCompleteNotify,
+		   PresentIdleNotify,
+		   PresentRedirectNotify }
+
+PRESENTEVENTMASK { PresentConfigureNotifyMask,
+		   PresentCompleteNotifyMask,
+		   PresentIdleNotifyMask,
+		   PresentSubredirectNotifyMask }
+
+PRESENTOPTION { PresentOptionAsync,
+                PresentOptionCopy,
+		PresentOptionUST }
+
+PRESENTCAPABILITY { PresentCapabilityAsync,
+		    PresentCapabilityFence,
+		    PresentCapabilityUST }
+
+PRESENTCOMPLETEKIND { PresentCompleteKindPixmap,
+		      PresentCompleteKindMSCNotify }
+
+PRESENTCOMPLETEMODE { PresentCompleteModeCopy,
+		      PresentCompleteModeFlip,
+		      PresentCompleteModeSkip }
+
+The Present extension also uses the Sync extension Fence data type to
+provide synchronization for pixmaps.
+
+			     ❄ ❄ ❄  ❄  ❄ ❄ ❄ 
+
+3. Errors
+
+EventID
+	A value for an EventID argument does not name a defined EventID
+
+			     ❄ ❄ ❄  ❄  ❄ ❄ ❄ 
+
+5. Events
+
+ConfigureNotify events inform clients about window configuration
+changes which can affect the allocation of window-related buffers.
+
+CompleteNotify events inform clients about the completion of a pending
+PresentPixmap request.
+
+IdleNotify events inform clients when pixmaps are available for re-use.
+
+RedirectNotify events inform clients about other clients PresentPixmap
+requests.
+
+			     ❄ ❄ ❄  ❄  ❄ ❄ ❄ 
+
+6. Extension Initialization
+
+The name of this extension is "Present"
+
+┌───
+    PresentQueryVersion
+	client-major-version:	CARD32
+	client-minor-version:	CARD32
+      ▶
+	major-version:		CARD32
+	minor-version:		CARD32
+└───
+
+	The client sends the highest supported version to the server
+	and the server sends the highest version it supports, but no
+	higher than the requested version. Major versions changes can
+	introduce incompatibilities in existing functionality, minor
+	version changes introduce only backward compatible changes.
+	It is the clients responsibility to ensure that the server
+	supports a version which is compatible with its expectations.
+
+	Backwards compatible changes included addition of new
+	requests.
+
+			     ❄ ❄ ❄  ❄  ❄ ❄ ❄ 
+
+7. Extension Requests
+
+┌───
+    PresentPixmap
+	window: WINDOW
+	pixmap: PIXMAP
+	serial: CARD32
+	valid-area: REGION or None
+	update-area: REGION or None
+	x-off, y-off: INT16
+	target-crtc: CRTC or None
+	wait-fence: FENCE
+	idle-fence: FENCE
+	options: SETofPRESENTOPTION
+	target-msc: CARD64
+	divisor: CARD64
+	remainder: CARD64
+	notifies: LISTofPRESENTNOTIFY
+└───
+	Errors: Window, Pixmap, Match
+
+	Provides new content for the specified window, to be made
+	visible at the specified time (defined by 'target-msc', 'divisor'
+	and 'remainder'). If the depth of 'pixmap' and 'window' do not
+	match, a Match error will be generated.
+
+	'serial' is an arbitrary client-specified value which will
+	be returned in the associated PresentCompleteNotify event so
+	that the client can associate the event and request.
+
+	'valid-area' defines the portion of 'pixmap' which contains
+	valid window contents, or None if the pixmap contains valid
+	contents for the whole window.
+
+	'update-area' defines the subset of the window to be updated,
+	or None if the whole window is to be updated.
+
+	PresentPixmap may use any region of 'pixmap' which contains
+	'update-area' and which is contained by 'valid-area'. In other
+	words, areas inside 'update-area' will be presented from
+	'pixmap', areas outside 'valid-area' will not be presented
+	from 'pixmap' and areas inside 'valid-area' but outside
+	'update-area' may or may not be presented at the discretion of
+	the X server.
+
+	'x-off' and 'y-off' define the location in the window where
+	the 0,0 location of the pixmap will be presented. valid-area
+	and update-area are relative to the pixmap.
+
+	PresentPixmap will block until 'wait-fence' is triggered.
+	
+	When the X server has finished using 'pixmap' for this
+	operation, it will send a PresentIdleNotify event and arrange
+	for any 'idle-fence' to be triggered. This may be at any time
+	following the PresentPixmap request -- the contents may be
+	immediately copied to another buffer, copied just in time for
+	the vblank interrupt or the pixmap may be used directly for
+	display (in which case it will be busy until some future
+	PresentPixmap operation).
+
+	If 'idle-fence' is not None, then the client guarantees to the
+	X server that it will wait for that fence to be signalled
+	before it uses the pixmap again. If 'idle-fence' is None, then
+	the X server must arrange for the pixmap to be re-usable by
+	the client as soon as the PresentIdleNotify event has been
+	received. Note that if PresentCapabilityFence is set for the
+	associated CRTC, then clients should use fences to improve
+	overall systme performance. If PresentCapabilityFence is not
+	set, then using fences offers no benefit, but also no cost.
+
+	If 'target-msc' is greater than the current msc for 'window',
+	the presentation will occur at (or after) the 'target-msc'
+	field. Otherwise, the presentation will occur after the next
+	field where msc % 'divisor' == 'remainder'.
+	
+	If 'target-crtc' is None, then the X server will choose a
+	suitable CRTC for synchronization.
+	
+	If 'options' contains PresentOptionAsync, and the 'target-msc'
+	is less than or equal to the current msc for 'window', then
+	the operation will be performed as soon as possible, not
+	necessarily waiting for the next vertical blank interval.
+
+	If 'options' contains PresentOptionCopy, then 'pixmap' will be
+	idle, and 'idle-fence' triggered as soon as the operation occurs.
+
+	If 'options' contains PresentOptionUST, then target-msc,
+	divisor and remainder will all be interpreted as UST values
+	instead of MSC values and the frame update will be scheduled
+	for the specified UST time, If the target-crtc supports
+	PresentCapabilityUST, then the swap time will be as close to
+	the target time as the driver can manage. Otherwise, the
+	server will take the target UST time and convert it to a
+	suitable target MSC value.
+
+	After the presentation occurs, a PresentCompleteNotify event
+	with kind PresentCompleteKindPixmap will be generated, both to
+	'window' as well as all members of 'notifies'.
+
+	If 'window' is destroyed before the presentation occurs, then
+	the presentation action will not be completed.
+
+	PresentPixmap holds a reference to 'pixmap' until the
+	presentation occurs, so 'pixmap' may be immediately freed
+	after the request executes, even if that is before the
+	presentation occurs.
+
+	If 'idle-fence' is destroyed before the presentation occurs,
+	then idle-fence will not be signaled but the presentation will
+	occur normally.
+
+	If 'wait-fence' is destroyed before it becomes triggered, then
+	the presentation operation will no longer wait for it and will
+	occur when the other conditions are satisfied.
+
+┌───
+    PresentNotifyMSC
+	window: WINDOW
+	serial: CARD32
+	target-msc: CARD64
+	divisor: CARD64
+	remainder: CARD64
+└───
+	Errors: Window
+
+	Delivers a PresentCompleteNotifyEvent with kind
+	PresentCompleteKindNotifyMSC after the time specified by
+	'target-msc', 'divisor' and 'remainder').
+
+	'serial' is an arbitrary client-specified value which will be
+	returned in the event so that the client can associate the
+	event and request.
+
+	If 'target-msc' is greater than the current msc for 'window',
+	the event will be delivered at (or after) the 'target-msc'
+	field. Otherwise, the event delivery will occur after the next
+	field where msc % 'divisor' == 'remainder'.
+	
+	If 'window' is destroyed before the event is delivered, then
+	the event delivery will not be completed.
+
+┌───
+    PresentSelectInput
+	event-id: PRESENTEVENTID
+	window: WINDOW
+	eventMask: SETofPRESENTEVENT
+└───
+	Errors: Window, Value, Match, IDchoice, Access
+
+	Selects the set of Present events to be delivered for the
+	specified window and event context. PresentSelectInput can
+	create, modifiy or delete event contexts. An event context is
+	associated with a specific window; using an existing event
+	context with a different window generates a Match error.
+
+	If eventContext specifies an existing event context, then if
+	eventMask is empty, PresentSelectInput deletes the specified
+	context, otherwise the specified event context is changed to
+	select a different set of events.
+
+	If eventContext is an unused XID, then if eventMask is empty
+	no operation is performed. Otherwise, a new event context is
+	created selecting the specified events.
+
+	Specifying PresentSubredirectNotify Mask causes PresentPixmap
+	requests on any child of 'window' from other clients to
+	generate PresentRedirectNotify events to 'window' instead of
+	actually performing the operation. However, only one client at
+	a time can select for PresentRedirect on a window. An attempt
+	to violate this restriction results in an Access error.
+
+┌───
+    PresentQueryCapabilities
+	target:			CRTC or WINDOW
+      ▶
+	capabilities:		SETofPRESENTCAPABILITY
+└───
+	Errors: Window, CRTC
+
+	Returns the supported capabilities for the target CRTC.  If
+	'target' is a CRTC, then it is used as the target CRTC.  If
+	'target' is a WINDOW, then the target CRTC is selected by the
+	X server from among the CRTCs on the screen specified by the window.
+
+	PresentCapabilityAsync means that the target device can flip
+	the scanout buffer mid-frame instead of waiting for a vertical
+	blank interval. The precise latency between the flip request
+	and the actual scanout transition is not defined by this
+	specification, but is intended to be no more than a few
+	scanlines.
+
+	PresentCapabilityFence means that the target device can take
+	advantage of SyncFences in the Present operations to improve
+	GPU throughput. The driver must operate correctly in the
+	absense of fences, but may have reduced performance. Using
+	fences for drivers not advertising this capability should have
+	no performance impact.
+
+	PresentCapabilityUST means that the target device can scanout
+	the image at an arbitrary UST time value, and is not driven by
+	a periodic scanout timer. Applications specifying UST times
+	for PresentPixmap can expect that their image will appear to
+	the user within a short amount of time from that specified in
+	the request. The precise accuracy of the scanout time is not
+	defined by the extension, but is expected to be on the order
+	of milliseconds or less.
+
+			     ❄ ❄ ❄  ❄  ❄ ❄ ❄ 
+
+8. Extension Events
+
+┌───
+    PresentConfigureNotify
+	type: CARD8			XGE event type (35)
+	extension: CARD8		Present extension request number
+	sequence-number: CARD16
+	length: CARD32			2
+	evtype: CARD16			Present_ConfigureNotify
+	eventID: PRESENTEVENTID
+	window: WINDOW
+	x: INT16
+	y: INT16
+	width: CARD16
+	height: CARD16
+	off_x: INT16
+	off_y: INT16
+	pixmap_width: CARD16
+	pixmap_height: CARD16
+	pixmap_flags: CARD32
+└───
+
+	PresentConfigureNotify events are sent when the window
+	configuration changes if PresentSelectInput has requested
+	it. PresentConfigureNotify events are XGE events and so do not
+	have a unique event type.
+
+	'x' and 'y' are the parent-relative location of 'window'. 
+
+┌───
+    PresentCompleteNotify
+	type: CARD8			XGE event type (35)
+	extension: CARD8		Present extension request number
+	sequence-number: CARD16
+	length: CARD32			2
+	evtype: PRESENTEVENTTYPE	PresentCompleteNotify
+	eventID: PRESENTEVENTID
+	window: WINDOW
+	kind: PRESENTCOMPLETEKIND
+	mode: PRESENTCOMPLETEMODE
+	serial: CARD32
+	ust: CARD64
+	msc: CARD64
+└───
+
+	CompleteNotify events are delivered when a PresentPixmap or
+	PresentNotifyMSC operation has completed.
+
+	'kind' is PresentCompleteKindPixmap when generated by a
+	PresentPixmap operation completion or
+	PresentCompleteKindNotifyMsc when generated by a
+	PresentNotifyMSC operation completion.
+
+	'mode' is PresentCompleteModeCopy when the source pixmap
+	contents are taken from the pixmap and the pixmap is idle
+	immediately after the presentation completes. 'mode' is
+	PresentCompleteModeFlip when the pixmap remains in-use even
+	after the presentation completes. It will become idle no later
+	than when the next PresentPixmap operation targeting the same
+	window by any client completes. If the presentation operation
+	was skipped because some later operation made it irrelevant,
+	then 'mode' will be PresentCompleteModeSkip.
+
+	'serial' is the value provided in the generating PresentPixmap
+	request.
+
+	'msc' and 'ust' indicate the frame count and system time when
+	the presentation actually occurred.
+
+┌───
+    PresentIdleNotify
+	type: CARD8			XGE event type (35)
+	extension: CARD8		Present extension request number
+	sequence-number: CARD16
+	length: CARD32			0
+	evtype: PRESENTEVENTTYPE	PresentIdleNotify
+	eventID: PRESENTEVENTID
+	window: WINDOW
+	serial: CARD32
+	pixmap: PIXMAP
+	idle-fence: FENCE
+└───
+
+	IdleNotify events are delivered when a pixmap used in a
+	PresentPixmap operation may be re-used by the client.
+
+	'window' is the window from the PresentPixmap to which this
+	event is delivered.
+
+	'serial' is the value provided in the associated PresentPixmap
+	request.
+
+	'pixmap' is the pixmap which is ready for re-use.
+
+	'idle-fence' is the fence which was provided in the
+	originating PresentPixmap request and is used to synchronize
+	rendering between the client and the X server's use of the
+	buffer. If not None, then the client must wait for the fence
+	to be signaled before using the pixmap.
+
+┌───
+    PresentRedirectNotify
+	type: CARD8			XGE event type (35)
+	extension: CARD8		Present extension request number
+	sequence-number: CARD16
+	length: CARD32			17 + 2 n
+	evtype: CARD16			Present_RedirectNotify
+	update-window: BOOL
+
+	eventID: PRESENTEVENTID
+	event-window: WINDOW
+	window: WINDOW
+	pixmap: PIXMAP
+	serial: CARD32
+
+	valid-area: REGION
+	update-area: REGION
+	valid-rect: RECTANGLE
+	update-rect: RECTANGLE
+	x-off, y-off: INT16
+	target-crtc: CRTC
+	wait-fence: FENCE
+	idle-fence: FENCE
+	options: SETofPRESENTOPTION
+	target-msc: CARD64
+	divisor: CARD64
+	remainder: CARD64
+	notifies: LISTofPRESENTNOTIFY
+└───
+
+	RedirectNotify events are delivered when the client has
+	selected for SubredirectNotify the parent of the target
+	window. All of the values provided to the PresentPixmap
+	request are provided. If the client simply passes these
+	parameters back to the X server, the effect will be as if the
+	original client executed the request.
+
+	If 'update-window' is TRUE, then there are clients who have
+	requested composite automatic redirect on the window and who
+	presumably expect the window buffer to eventually contain
+	the application provided contents. The compositing manager
+	should at least occasionally update the window buffer with
+	suitable contents. The precise update interval is left to the
+	discretion of the client receiving this event.
+
+			     ❄ ❄ ❄  ❄  ❄ ❄ ❄
+
+9. Extension Versioning
+
+	1.0: First published version
+
+			     ❄ ❄ ❄  ❄  ❄ ❄ ❄
+
+
+10. Relationship with other extensions
+
+As an extension designed to support other extensions, there is
+naturally some interactions with other extensions.
+
+10.1 GLX
+
+GLX is both an application interface and an X extension. OpenGL
+applications using the GLX API will use the GLX extension and may use
+the Present extension to display application contents.
+
+10.2 DRI3
+
+The DRI3 extension provides a way to share direct rendered pixel data
+with the X server as X pixmaps. When used in conjunction with Present,
+they provide a complete direct rendering solution for OpenGL or other
+APIs.
+
+10.3 DRI2
+
+Present provides similar functionality to the DRI2SwapBuffers and
+requests, however Present uses X pixmaps to refer to the new window
+contents instead of the DRI2 buffer attachments.
+
+Present and DRI3 are designed in conjunction to replace DRI2
+
+10.4 XvMC / Xv
+
+It might be nice to be able to use YUV formatted objects as Present
+sources.
+
+			     ❄ ❄ ❄  ❄  ❄ ❄ ❄
+
+Appendix A. Protocol Encoding
+
+Syntactic Conventions
+
+This document uses the same syntactic conventions as the core X
+protocol encoding document.
+
+
+A.1 Common Types
+┌───
+    PresentEventType
+	0	PresentConfigureNotify
+	1	PresentCompleteNotify
+	2	PresentIdleNotify
+	3	PresentRedirectNotify
+└───
+
+┌───
+    PresentEventMask
+	1	PresentConfigureNotifyMask
+	2	PresentCompleteNotifyMask
+	4	PresentIdleNotifyMask
+	8	PresentRedirectNotifyMask
+└───
+
+┌───
+    PresentOption
+	1	PresentOptionAsync
+	2	PresentOptionCopy;
+	4	PresentOptionUST
+└───
+
+┌───
+    PresentCapability
+	1	PresentCapabilityAsync
+	2	PresentCapabilityFence
+	4	PresentCapabilityUST
+└───
+
+┌───
+    PresentCompleteKind
+	0	PresentCompleteKindPixmap
+	1	PresentCompleteKindMSCNotify
+└───
+
+┌───
+    PresentCompleteMode
+	0	PresentCompleteModeCopy
+	1	PresentCompleteModeFlip
+	2	PresentCompleteModeSkip
+└───
+
+┌───
+    PresentNotify
+	4	Window			window
+	4	CARD32			serial
+└───
+
+A.2 Protocol Requests
+
+┌───
+    PresentQueryVersion
+	1	CARD8			major opcode
+	1	0			Present opcode
+	2	3			length
+	4	CARD32			major version
+	4	CARD32			minor version
+      ▶
+	1	1			Reply
+        1				unused
+	2	CARD16			sequence number
+	4	0			reply length
+	4	CARD32			major version
+        4	CARD32			minor version
+	16				unused	
+└───
+
+┌───
+    PresentPixmap
+	1	CARD8			major opcode
+	1	1			Present opcode
+	2	18+2n			length
+	4	Window			window
+	4	Pixmap			pixmap
+	4	CARD32			serial
+	4	Region			valid-area
+	4	Region			update-area
+	2	INT16			x-off
+	2	INT16			y-off
+	4	CRTC			target-crtc
+	4	SyncFence		wait-fence
+	4	SyncFence		idle-fence
+	4	CARD32			options
+	4				unused
+	8	CARD64			target-msc
+	8	CARD64			divisor
+	8	CARD64			remainder
+	8n	LISTofPresentNotify	notifies
+└───
+
+┌───
+    PresentNotifyMSC
+	1	CARD8			major opcode
+	1	2			Present opcode
+	2	10			length
+	4	Window			window
+	4	CARD32			serial
+	4				unused
+	8	CARD64			target-msc
+	8	CARD64			divisor
+	8	CARD64			remainder
+└───
+
+┌───
+    PresentSelectInput
+	1	CARD8			major opcode
+	1	3			Present opcode
+	2	4			length
+	4	EventID			event-id
+	4	Window			window
+	4	SETofPRESENTEVENTMASK	event-mask
+└───
+
+┌───
+    PresentQueryCapabilities
+	1	CARD8			major opcode
+	1	4			Present opcode
+	2	2			length
+	4	CRTC or Window		target
+      ▶
+	1	1			Reply
+        1				unused
+	2	CARD16			sequence number
+	4	0			reply length
+	4	SETofPRESENTCAPABILITY	capabilities
+└───
+
+A.3 Protocol Events
+
+┌───
+    PresentConfigureNotify
+	1	35			XGE
+	1	CARD8			Present extension opcode
+	2	CARD16			sequence number
+	4	2			length
+	2	0			PresentConfigureNotify
+	2				unused
+	4	CARD32			event id
+	4	Window			window
+	2	INT16			x
+	2	INT16			y
+	2	CARD16			width
+	2	CARD16			height
+	2	INT16			off x
+	2	INT16			off y
+
+	2	CARD16			pixmap width
+	2	CARD16			pixmap height
+	4	CARD32			pixmap flags
+└───
+
+┌───
+    PresentCompleteNotify
+	1	35			XGE
+	1	CARD8			Present extension opcode
+	2	CARD16			sequence number
+	4	2			length
+	2	1			PresentCompleteNotify
+	1	CARD8			kind
+	1	CARD8			mode
+	4	CARD32			event id
+	4	Window			window
+	4	CARD32			serial
+	8	CARD64			ust
+
+	8	CARD64			msc
+└───
+
+┌───
+    PresentIdleNotify
+	1	35			XGE
+	1	CARD8			Present extension opcode
+	2	CARD16			sequence number
+	4	0			length
+	2	2			PresentIdleNotify
+	2				unused
+	4	CARD32			event id
+	4	Window			window
+	4	CARD32			serial
+	4	Pixmap			pixmap
+	4	SyncFence		idle-fence
+└───
+
+┌───
+    PresentRedirectNotify
+	1	35			XGE
+	1	CARD8			Present extension opcode
+	2	CARD16			sequence number
+	4	18+2n			length
+	2	3			PresentRedirectNotify
+	1	BOOL			update-window
+	1				unused
+	4	CARD32			event id
+	4	Window			event-window
+	4	Window			window
+	4	Pixmap			pixmap
+	4	CARD32			serial
+
+	4	Region			valid-area
+	4	Region			update-area
+	8	Rectangle		valid-rect
+	8	Rectangle		update-rect
+	2	INT16			x-off
+	2	INT16			y-off
+	4	CRTC			target-crtc
+	4	SyncFence		wait-fence
+	4	SyncFence		idle-fence
+	4	CARD32			options
+	4				unused
+	8	CARD64			target-msc
+	8	CARD64			divisor
+	8	CARD64			remainder
+	8n	LISTofPRESENTNOTIFY	notifies
+└───
+
+A.4 Protocol Errors
+
+The DRI3 extension defines no errors.
+
+			     ❄ ❄ ❄  ❄  ❄ ❄ ❄
diff --git a/proto/presentproto/presenttokens.h b/proto/presentproto/presenttokens.h
new file mode 100644
index 000000000..807dbcfa5
--- /dev/null
+++ b/proto/presentproto/presenttokens.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright © 2013 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifndef _PRESENT_TOKENS_H_
+#define _PRESENT_TOKENS_H_
+
+#define PRESENT_NAME			"Present"
+#define PRESENT_MAJOR			1
+#define PRESENT_MINOR			0
+
+#define PresentNumberErrors		0
+#define PresentNumberEvents		0
+
+/* Requests */
+#define X_PresentQueryVersion		0
+#define X_PresentPixmap			1
+#define X_PresentNotifyMSC		2
+#define X_PresentSelectInput		3
+#define X_PresentQueryCapabilities      4
+
+#define PresentNumberRequests		5
+
+/* Present operation options */
+#define PresentOptionNone               0
+#define PresentOptionAsync              (1 << 0)
+#define PresentOptionCopy               (1 << 1)
+#define PresentOptionUST                (1 << 2)
+
+#define PresentAllOptions       (PresentOptionAsync | \
+                                 PresentOptionCopy | \
+                                 PresentOptionUST)
+
+/* Present capabilities */
+
+#define PresentCapabilityNone           0
+#define PresentCapabilityAsync          1
+#define PresentCapabilityFence          2
+#define PresentCapabilityUST            4
+
+#define PresentAllCapabilities  (PresentCapabilityAsync | \
+                                 PresentCapabilityFence | \
+                                 PresentCapabilityUST)
+
+/* Events */
+#define PresentConfigureNotify	0
+#define PresentCompleteNotify	1
+#define PresentIdleNotify       2
+#define PresentRedirectNotify	3
+
+/* Event Masks */
+#define PresentConfigureNotifyMask      1
+#define PresentCompleteNotifyMask       2
+#define PresentIdleNotifyMask           4
+#define PresentRedirectNotifyMask       8
+
+#define PresentAllEvents   (PresentConfigureNotifyMask |        \
+                            PresentCompleteNotifyMask |         \
+                            PresentIdleNotifyMask |             \
+                            PresentRedirectNotifyMask)
+
+/* Complete Kinds */
+
+#define PresentCompleteKindPixmap       0
+#define PresentCompleteKindNotifyMSC    1
+
+/* Complete Modes */
+
+#define PresentCompleteModeCopy         0
+#define PresentCompleteModeFlip         1
+#define PresentCompleteModeSkip         2
+
+#endif