Update to xpr 1.0.4

14 files changed, 11774 insertions, 834 deletions

diff --git a/app/xpr/COPYING b/app/xpr/COPYING
index 7f33cbfd2..0f9d8e0df 100644
--- a/app/xpr/COPYING
+++ b/app/xpr/COPYING
@@ -1,12 +1,53 @@
-This is a stub file.  This package has not yet had its complete licensing
-information compiled.  Please see the individual source files for details on
-your rights to use and modify this software.
 
-Please submit updated COPYING files to the Xorg bugzilla:
+Copyright (c) 1985, 1988  X Consortium
 
-https://bugs.freedesktop.org/enter_bug.cgi?product=xorg
+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:
 
-All licensing questions regarding this software should be directed at the
-Xorg mailing list:
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
 
-http://lists.freedesktop.org/mailman/listinfo/xorg
+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 CONNECTION 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 dealings in this Software without prior written authorization
+from the X Consortium.
+
+Copyright 1986 by Marvin Solomon and the University of Wisconsin
+
+Permission to use, copy, modify, and distribute this
+software and its documentation for any purpose and without
+fee is hereby granted, 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 names of Marvin Solomon and
+the University of Wisconsin not be used in
+advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+Neither Marvin Solomon nor the University of Wisconsin
+makes any representations about the suitability of
+this software for any purpose.  It is provided "as is"
+without express or implied warranty.
+
+Copyright (c) 1988 by Hewlett-Packard Company
+
+Permission to use, copy, modify, and distribute this software
+and its documentation for any purpose and without fee is hereby
+granted, 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
+Hewlett-Packard not be used in advertising or publicity
+pertaining to distribution of the software without specific, written
+prior permission.
diff --git a/app/xpr/ChangeLog b/app/xpr/ChangeLog
index c234c1f6e..a92c6526f 100644
--- a/app/xpr/ChangeLog
+++ b/app/xpr/ChangeLog
@@ -1,3 +1,165 @@
+commit 699aa034b8368a4052aa0318d4bca74dd688a7c2
+Author: Alan Coopersmith <alan.coopersmith@oracle.com>
+Date:   Sat Mar 31 16:57:47 2012 -0700
+
+    xpr 1.0.4
+    
+    Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
+
+commit c9b09f54d783689261855bd87a2bc68bfb3d9731
+Author: Jeremy Huddleston <jeremyhu@apple.com>
+Date:   Fri Nov 11 11:32:05 2011 -0800
+
+    Use memmove rather than bcopy
+    
+    bcopy was removed in POSIX 2008.  I didn't check to see if we could
+    safely use memcpy.
+    
+    Signed-off-by: Jeremy Huddleston <jeremyhu@apple.com>
+
+commit 28eaec94f936534573907425cf0fb5198979aab3
+Author: Alan Coopersmith <alan.coopersmith@oracle.com>
+Date:   Thu Oct 6 22:40:45 2011 -0700
+
+    Add _X_NORETURN to usage() & leave() as suggested by gcc -Wmissing-noreturn
+    
+    Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
+
+commit 3b8fed17575db9d8d571d240bbaebd05d4547060
+Author: Alan Coopersmith <alan.coopersmith@oracle.com>
+Date:   Thu Oct 6 22:38:36 2011 -0700
+
+    Add const attributes to fix gcc -Wwrite-strings warnings
+    
+    Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
+
+commit b7d620037e130de1b0b309119c045d4f6a6ba8c5
+Author: Alan Coopersmith <alan.coopersmith@oracle.com>
+Date:   Thu Oct 6 22:35:31 2011 -0700
+
+    Fix printf type warnings in LP64 builds
+    
+    x2jet.c:300:6: warning: format ‘%ld’ expects type ‘long int’, but argument 4 has type ‘CARD32’
+    x2jet.c:300:6: warning: format ‘%ld’ expects type ‘long int’, but argument 5 has type ‘CARD32’
+    
+    Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
+
+commit 787f9d6d8f6dd6663af27e3cd21facaee6bed4f5
+Author: Alan Coopersmith <alan.coopersmith@oracle.com>
+Date:   Thu Oct 6 22:33:33 2011 -0700
+
+    Strip trailing whitespace
+    
+    Performed with: find * -type f | xargs perl -i -p -e 's{[ \t]+$}{}'
+    git diff -w & git diff -b show no diffs from this change
+    
+    Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
+
+commit fbd4b8fe00ba600b44232619425f76a6f4fa8208
+Author: Alan Coopersmith <alan.coopersmith@oracle.com>
+Date:   Sat Jan 29 11:45:11 2011 -0800
+
+    Define pixel mask constant as unsigned long
+    
+    Clears Sun Studio cc warning of:
+    "x2jet.c", line 1681: warning: constant promoted to unsigned long
+    
+    Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
+
+commit 0b7c07a1667c1f7e692b7694d374f27d46c3c923
+Author: Alan Coopersmith <alan.coopersmith@oracle.com>
+Date:   Sat Jan 29 11:41:41 2011 -0800
+
+    Refactor invalid depth error reporting to allow printf format checking
+    
+    Clears gcc warnings:
+    x2jet.c: In function `validate_visual':
+    x2jet.c:1053: warning: format not a string literal, argument types not checked
+    x2jet.c:1055: warning: format not a string literal, argument types not checked
+    x2jet.c:1057: warning: format not a string literal, argument types not checked
+    x2jet.c:1059: warning: format not a string literal, argument types not checked
+    x2jet.c:1064: warning: format not a string literal, argument types not checked
+    
+    Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
+
+commit a02099a6869064c8b8c04a91acf5ece8568c7389
+Author: Alan Coopersmith <alan.coopersmith@oracle.com>
+Date:   Sat Jan 29 11:03:40 2011 -0800
+
+    Replace gcc noreturn & printf attributes with macros from <X11/Xfuncproto.h>
+    
+    Adds dependency on x11proto 7.0.17 to get the definition of _X_NORETURN
+    
+    Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
+
+commit 303aa90258f0ceff98e389b226860f0d0afe4c12
+Author: Alan Coopersmith <alan.coopersmith@oracle.com>
+Date:   Sat Jan 29 10:48:47 2011 -0800
+
+    config: Replace obsolete argument to AC_OUTPUT with AC_CONFIG_FILES
+    
+    Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
+
+commit 43f7a9381d0c056ee2a3da193fa8d953e5881dcc
+Author: Alan Coopersmith <alan.coopersmith@oracle.com>
+Date:   Sat Jan 29 10:47:32 2011 -0800
+
+    config: Remove unnecessary calls from configure.ac
+    
+    AC_PROG_CC & AC_PROG_INSTALL are provided by XORG_DEFAULT_OPTIONS now
+    PKG_CONFIG_MODULES handles AC_SUBST of the CFLAGS & LIBS variables
+    
+    Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
+
+commit dde63ef2968b104d6deb99a2a56f576382b763a5
+Author: Alan Coopersmith <alan.coopersmith@oracle.com>
+Date:   Sat Jan 29 10:47:04 2011 -0800
+
+    config: replace deprecated AM_CONFIG_HEADER with AC_CONFIG_HEADERS
+    
+    Regroup AC statements under the Autoconf initialization section.
+    Regroup AM statements under the Automake initialization section.
+    Add missing AC_CONFIG_SRCDIR
+    
+    Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
+
+commit 9ffea606516f4138d91a163038b03669ce787b4a
+Author: Gaetan Nadon <memsize@videotron.ca>
+Date:   Sat Jan 29 10:44:22 2011 -0800
+
+    config: update AC_PREREQ statement to 2.60
+    
+    Unrelated to the previous patches, the new value simply reflects
+    the reality that the minimum level for autoconf to configure
+    all x.org modules is 2.60 dated June 2006.
+    
+    ftp://ftp.gnu.org/gnu/autoconf/autoconf-2.60.tar.gz
+    
+    Signed-off-by: Gaetan Nadon <memsize@videotron.ca>
+    Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
+
+commit 96c2e6761517f2d8618e3b252e4825c25b5b7627
+Author: Alan Coopersmith <alan.coopersmith@oracle.com>
+Date:   Sat Jan 29 10:43:20 2011 -0800
+
+    config: upgrade to util-macros 1.8 for additional man page support
+    
+    Use MAN_SUBST now supplied in XORG_MANPAGE_SECTIONS
+    The value of MAN_SUBST is the same for all X.Org packages.
+    
+    Use AC_PROG_SED now supplied by XORG_DEFAULT_OPTIONS
+    Enables use of platform appropriate version of sed.
+    
+    Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
+
+commit 11569289123fb178e23fd1aa284e9fa10e6c1e8c
+Author: Alan Coopersmith <alan.coopersmith@oracle.com>
+Date:   Fri Aug 6 15:09:48 2010 -0700
+
+    Fill in COPYING file with copyright notices from source code
+    
+    Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
+
 commit ae7e1530f9e60e9a8747a1d4c38579510675f023
 Author: Alan Coopersmith <alan.coopersmith@sun.com>
 Date:   Fri Oct 16 19:13:21 2009 -0700
diff --git a/app/xpr/Makefile.am b/app/xpr/Makefile.am
index 77f60fc95..c96f86364 100644
--- a/app/xpr/Makefile.am
+++ b/app/xpr/Makefile.am
@@ -1,6 +1,6 @@
-# 
+#
 #  Copyright 2005  Red Hat, Inc.
-# 
+#
 #  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
@@ -10,7 +10,7 @@
 #  specific, written prior permission.  Red Hat makes no
 #  representations about the suitability of this software for any purpose.  It
 #  is provided "as is" without express or implied warranty.
-# 
+#
 #  RED HAT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 #  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
 #  EVENT SHALL RED HAT BE LIABLE FOR ANY SPECIAL, INDIRECT OR
@@ -62,26 +62,8 @@ appman_DATA = $(appman_PRE:man=@APP_MAN_SUFFIX@)
 EXTRA_DIST += $(appman_PRE)
 CLEANFILES += $(appman_DATA)
 
-SED = sed
-
-# Strings to replace in man pages
-XORGRELSTRING = @PACKAGE_STRING@
-  XORGMANNAME = X Version 11
-
-MAN_SUBSTS = \
-	-e 's|__vendorversion__|"$(XORGRELSTRING)" "$(XORGMANNAME)"|' \
-	-e 's|__xorgversion__|"$(XORGRELSTRING)" "$(XORGMANNAME)"|' \
-	-e 's|__xservername__|Xorg|g' \
-	-e 's|__xconfigfile__|xorg.conf|g' \
-	-e 's|__projectroot__|$(prefix)|g' \
-	-e 's|__apploaddir__|$(appdefaultdir)|' \
-	-e 's|__appmansuffix__|$(APP_MAN_SUFFIX)|g' \
-	-e 's|__libmansuffix__|$(LIB_MAN_SUFFIX)|g' \
-	-e 's|__adminmansuffix__|$(ADMIN_MAN_SUFFIX)|g' \
-	-e 's|__miscmansuffix__|$(MISC_MAN_SUFFIX)|g' \
-	-e 's|__filemansuffix__|$(FILE_MAN_SUFFIX)|g'
-
 SUFFIXES = .$(APP_MAN_SUFFIX) .man
 
+# String replacements in MAN_SUBSTS now come from xorg-macros.m4 via configure
 .man.$(APP_MAN_SUFFIX):
 	$(AM_V_GEN)$(SED) $(MAN_SUBSTS) < $< > $@
diff --git a/app/xpr/Makefile.in b/app/xpr/Makefile.in
index 28277fb4e..f2d3dc6b7 100644
--- a/app/xpr/Makefile.in
+++ b/app/xpr/Makefile.in
@@ -14,9 +14,9 @@
 
 @SET_MAKE@
 
-# 
+#
 #  Copyright 2005  Red Hat, Inc.
-# 
+#
 #  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
@@ -26,7 +26,7 @@
 #  specific, written prior permission.  Red Hat makes no
 #  representations about the suitability of this software for any purpose.  It
 #  is provided "as is" without express or implied warranty.
-# 
+#
 #  RED HAT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 #  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
 #  EVENT SHALL RED HAT BE LIABLE FOR ANY SPECIAL, INDIRECT OR
@@ -46,9 +46,9 @@ pkgincludedir = $(includedir)/@PACKAGE@
 top_builddir = .
 am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
 INSTALL = @INSTALL@
-install_sh_DATA = $(install_sh) -c -m 644
-install_sh_PROGRAM = $(install_sh) -c
-install_sh_SCRIPT = $(install_sh) -c
+install_sh_DATA = ${SHELL} $(install_sh) -c -m 644
+install_sh_PROGRAM = ${SHELL} $(install_sh) -c
+install_sh_SCRIPT = ${SHELL} $(install_sh) -c
 INSTALL_HEADER = $(INSTALL_DATA)
 transform = $(program_transform_name)
 NORMAL_INSTALL = :
@@ -113,18 +113,21 @@ am__remove_distdir = \
 DIST_ARCHIVES = $(distdir).tar.gz $(distdir).tar.bz2
 GZIP_ENV = --best
 distuninstallcheck_listfiles = find . -type f -print
+distcleancheck_listfiles = find . -type f -print
 ACLOCAL = @ACLOCAL@
 ADMIN_MAN_DIR = @ADMIN_MAN_DIR@
 ADMIN_MAN_SUFFIX = @ADMIN_MAN_SUFFIX@
 AMDEP_FALSE = @AMDEP_FALSE@
 AMDEP_TRUE = @AMDEP_TRUE@
 AMTAR = @AMTAR@
+AM_DEFAULT_VERBOSITY = @AM_DEFAULT_VERBOSITY@
 APP_MAN_DIR = @APP_MAN_DIR@
 APP_MAN_SUFFIX = @APP_MAN_SUFFIX@
 AUTOCONF = @AUTOCONF@
 AUTOHEADER = @AUTOHEADER@
 AUTOMAKE = @AUTOMAKE@
 AWK = @AWK@
+BASE_CFLAGS = @BASE_CFLAGS@
 CC = @CC@
 CCDEPMODE = @CCDEPMODE@
 CFLAGS = @CFLAGS@
@@ -145,6 +148,7 @@ EXEEXT = @EXEEXT@
 FILE_MAN_DIR = @FILE_MAN_DIR@
 FILE_MAN_SUFFIX = @FILE_MAN_SUFFIX@
 GREP = @GREP@
+INSTALL_CMD = @INSTALL_CMD@
 INSTALL_DATA = @INSTALL_DATA@
 INSTALL_PROGRAM = @INSTALL_PROGRAM@
 INSTALL_SCRIPT = @INSTALL_SCRIPT@
@@ -159,6 +163,7 @@ MAINT = @MAINT@
 MAINTAINER_MODE_FALSE = @MAINTAINER_MODE_FALSE@
 MAINTAINER_MODE_TRUE = @MAINTAINER_MODE_TRUE@
 MAKEINFO = @MAKEINFO@
+MAN_SUBSTS = @MAN_SUBSTS@
 MISC_MAN_DIR = @MISC_MAN_DIR@
 MISC_MAN_SUFFIX = @MISC_MAN_SUFFIX@
 OBJEXT = @OBJEXT@
@@ -170,10 +175,13 @@ PACKAGE_TARNAME = @PACKAGE_TARNAME@
 PACKAGE_VERSION = @PACKAGE_VERSION@
 PATH_SEPARATOR = @PATH_SEPARATOR@
 PKG_CONFIG = @PKG_CONFIG@
+SED = @SED@
 SET_MAKE = @SET_MAKE@
 SHELL = @SHELL@
+STRICT_CFLAGS = @STRICT_CFLAGS@
 STRIP = @STRIP@
 VERSION = @VERSION@
+XORG_MAN_PAGE = @XORG_MAN_PAGE@
 XPR_CFLAGS = @XPR_CFLAGS@
 XPR_LIBS = @XPR_LIBS@
 ac_ct_CC = @ac_ct_CC@
@@ -192,7 +200,6 @@ build_os = @build_os@
 build_vendor = @build_vendor@
 datadir = @datadir@
 datarootdir = @datarootdir@
-distcleancheck_listfiles = @distcleancheck_listfiles@
 docdir = @docdir@
 dvidir = @dvidir@
 exec_prefix = @exec_prefix@
@@ -240,24 +247,6 @@ EXTRA_DIST = xdpr.script ChangeLog autogen.sh $(appman_PRE)
 MAINTAINERCLEANFILES = ChangeLog
 appmandir = $(APP_MAN_DIR)
 appman_DATA = $(appman_PRE:man=@APP_MAN_SUFFIX@)
-SED = sed
-
-# Strings to replace in man pages
-XORGRELSTRING = @PACKAGE_STRING@
-XORGMANNAME = X Version 11
-MAN_SUBSTS = \
-	-e 's|__vendorversion__|"$(XORGRELSTRING)" "$(XORGMANNAME)"|' \
-	-e 's|__xorgversion__|"$(XORGRELSTRING)" "$(XORGMANNAME)"|' \
-	-e 's|__xservername__|Xorg|g' \
-	-e 's|__xconfigfile__|xorg.conf|g' \
-	-e 's|__projectroot__|$(prefix)|g' \
-	-e 's|__apploaddir__|$(appdefaultdir)|' \
-	-e 's|__appmansuffix__|$(APP_MAN_SUFFIX)|g' \
-	-e 's|__libmansuffix__|$(LIB_MAN_SUFFIX)|g' \
-	-e 's|__adminmansuffix__|$(ADMIN_MAN_SUFFIX)|g' \
-	-e 's|__miscmansuffix__|$(MISC_MAN_SUFFIX)|g' \
-	-e 's|__filemansuffix__|$(FILE_MAN_SUFFIX)|g'
-
 SUFFIXES = .$(APP_MAN_SUFFIX) .man
 all: config.h
 	$(MAKE) $(AM_MAKEFLAGS) all-am
@@ -691,6 +680,7 @@ ChangeLog:
 
 dist-hook: ChangeLog
 
+# String replacements in MAN_SUBSTS now come from xorg-macros.m4 via configure
 .man.$(APP_MAN_SUFFIX):
 	$(AM_V_GEN)$(SED) $(MAN_SUBSTS) < $< > $@
 # Tell versions [3.59,3.63) of GNU make to not export all variables.
diff --git a/app/xpr/aclocal.m4 b/app/xpr/aclocal.m4
index d6409426d..ffa2493e2 100644
--- a/app/xpr/aclocal.m4
+++ b/app/xpr/aclocal.m4
@@ -498,18 +498,6 @@ AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
      [AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"])
 ])
 
-# Copyright (C) 1996, 1997, 2000, 2001, 2003, 2005
-# 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.
-
-# serial 8
-
-# AM_CONFIG_HEADER is obsolete.  It has been replaced by AC_CONFIG_HEADERS.
-AU_DEFUN([AM_CONFIG_HEADER], [AC_CONFIG_HEADERS($@)])
-
 # Do all the work for Automake.                             -*- Autoconf -*-
 
 # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
@@ -997,32 +985,26 @@ AC_SUBST([am__untar])
 
 dnl xorg-macros.m4.  Generated from xorg-macros.m4.in xorgversion.m4 by configure.
 dnl
-dnl Copyright 2005-2006 Sun Microsystems, Inc.  All rights reserved.
+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
-dnl "Software"), to deal in the Software without restriction, including
-dnl without limitation the rights to use, copy, modify, merge, publish,
-dnl distribute, and/or sell copies of the Software, and to permit persons
-dnl to whom the Software is furnished to do so, provided that the above
-dnl copyright notice(s) and this permission notice appear in all copies of
-dnl the Software and that both the above copyright notice(s) and this
-dnl permission notice appear in supporting documentation.
+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 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 OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
-dnl HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
-dnl INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
-dnl FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
-dnl NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
-dnl WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+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 Except as contained in this notice, the name of a copyright holder
-dnl shall not be used in advertising or otherwise to promote the sale, use
-dnl or other dealings in this Software without prior written authorization
-dnl of the copyright holder.
+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)
 # -------------------------------------
@@ -1040,7 +1022,7 @@ dnl of the copyright holder.
 # 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], [1.3.0])
+m4_define([vers_have], [1.16.2])
 m4_define([maj_have], m4_substr(vers_have, 0, m4_index(vers_have, [.])))
 m4_define([maj_needed], m4_substr([$1], 0, m4_index([$1], [.])))
 m4_if(m4_cmp(maj_have, maj_needed), 0,,
@@ -1067,7 +1049,7 @@ AC_PATH_PROGS(RAWCPP, [cpp], [${CPP}],
 # 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 $RAWCPP requires -undef])
-AC_LANG_CONFTEST([Does cpp redefine unix ?])
+AC_LANG_CONFTEST([AC_LANG_SOURCE([[Does cpp redefine unix ?]])])
 if test `${RAWCPP} < conftest.$ac_ext | grep -c 'unix'` -eq 1 ; then
 	AC_MSG_RESULT([no])
 else
@@ -1085,7 +1067,7 @@ fi
 rm -f conftest.$ac_ext
 
 AC_MSG_CHECKING([if $RAWCPP requires -traditional])
-AC_LANG_CONFTEST([Does cpp preserve   "whitespace"?])
+AC_LANG_CONFTEST([AC_LANG_SOURCE([[Does cpp preserve   "whitespace"?]])])
 if test `${RAWCPP} < conftest.$ac_ext | grep -c 'preserve   \"'` -eq 1 ; then
 	AC_MSG_RESULT([no])
 else
@@ -1108,9 +1090,12 @@ AC_SUBST(RAWCPPFLAGS)
 # 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
@@ -1179,8 +1164,60 @@ 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$XSL_STYLESHEET" != "x"])
+]) # XORG_CHECK_SGML_DOCTOOLS
+
 # XORG_CHECK_LINUXDOC
 # -------------------
 # Minimum version: 1.0.0
@@ -1190,23 +1227,14 @@ AC_SUBST([ADMIN_MAN_DIR])
 # Whether or not the necessary tools and files are found can be checked
 # with the AM_CONDITIONAL "BUILD_LINUXDOC"
 AC_DEFUN([XORG_CHECK_LINUXDOC],[
-if test x$XORG_SGML_PATH = x ; then
-    XORG_SGML_PATH=$prefix/share/sgml
-fi
-HAVE_DEFS_ENT=
-
-if test x"$cross_compiling" = x"yes" ; then
-  HAVE_DEFS_ENT=no
-else
-  AC_CHECK_FILE([$XORG_SGML_PATH/X11/defs.ent], [HAVE_DEFS_ENT=yes])
-fi
+AC_REQUIRE([XORG_CHECK_SGML_DOCTOOLS])
+AC_REQUIRE([XORG_WITH_PS2PDF])
 
 AC_PATH_PROG(LINUXDOC, linuxdoc)
-AC_PATH_PROG(PS2PDF, ps2pdf)
 
-AC_MSG_CHECKING([Whether to build documentation])
+AC_MSG_CHECKING([whether to build documentation])
 
-if test x$HAVE_DEFS_ENT != x && test x$LINUXDOC != x ; then
+if test x$XORG_SGML_PATH != x && test x$LINUXDOC != x ; then
    BUILDDOC=yes
 else
    BUILDDOC=no
@@ -1216,9 +1244,9 @@ AM_CONDITIONAL(BUILD_LINUXDOC, [test x$BUILDDOC = xyes])
 
 AC_MSG_RESULT([$BUILDDOC])
 
-AC_MSG_CHECKING([Whether to build pdf documentation])
+AC_MSG_CHECKING([whether to build pdf documentation])
 
-if test x$PS2PDF != x && test x$BUILD_PDFDOC != xno; then
+if test x$have_ps2pdf != xno && test x$BUILD_PDFDOC != xno; then
    BUILDPDFDOC=yes
 else
    BUILDPDFDOC=no
@@ -1228,7 +1256,7 @@ AM_CONDITIONAL(BUILD_PDFDOC, [test x$BUILDPDFDOC = xyes])
 
 AC_MSG_RESULT([$BUILDPDFDOC])
 
-MAKE_TEXT="SGML_SEARCH_PATH=$XORG_SGML_PATH GROFF_NO_SGR=y $LINUXDOC -B txt"
+MAKE_TEXT="SGML_SEARCH_PATH=$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"
@@ -1248,48 +1276,44 @@ AC_SUBST(MAKE_HTML)
 # indicates whether the necessary tools and files are found and, if set,
 # $(MAKE_XXX) blah.sgml will produce blah.xxx.
 AC_DEFUN([XORG_CHECK_DOCBOOK],[
-if test x$XORG_SGML_PATH = x ; then
-    XORG_SGML_PATH=$prefix/share/sgml
-fi
-HAVE_DEFS_ENT=
+AC_REQUIRE([XORG_CHECK_SGML_DOCTOOLS])
+
 BUILDTXTDOC=no
 BUILDPDFDOC=no
 BUILDPSDOC=no
 BUILDHTMLDOC=no
 
-AC_CHECK_FILE([$XORG_SGML_PATH/X11/defs.ent], [HAVE_DEFS_ENT=yes])
-
 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$HAVE_DEFS_ENT != x && test x$DOCBOOKTXT != x &&
+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$HAVE_DEFS_ENT != x && test x$DOCBOOKPDF != x &&
+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$HAVE_DEFS_ENT != x && test x$DOCBOOKPS != x &&
+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$HAVE_DEFS_ENT != x && test x$DOCBOOKHTML != x &&
+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
@@ -1307,6 +1331,964 @@ 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
@@ -1323,20 +2305,19 @@ AC_ARG_ENABLE(malloc0returnsnull,
 
 AC_MSG_CHECKING([whether malloc(0) returns NULL])
 if test "x$MALLOC_ZERO_RETURNS_NULL" = xauto; then
-	AC_RUN_IFELSE([
-char *malloc();
-char *realloc();
-char *calloc();
-main() {
+	AC_RUN_IFELSE([AC_LANG_PROGRAM([
+#include <stdlib.h>
+],[
     char *m0, *r0, *c0, *p;
     m0 = malloc(0);
     p = malloc(10);
     r0 = realloc(p,0);
-    c0 = calloc(0);
-    exit(m0 == 0 || r0 == 0 || c0 == 0 ? 0 : 1);
-}],
+    c0 = calloc(0,10);
+    exit((m0 == 0 || r0 == 0 || c0 == 0) ? 0 : 1);
+])],
 		[MALLOC_ZERO_RETURNS_NULL=yes],
-		[MALLOC_ZERO_RETURNS_NULL=no])
+		[MALLOC_ZERO_RETURNS_NULL=no],
+		[MALLOC_ZERO_RETURNS_NULL=yes])
 fi
 AC_MSG_RESULT([$MALLOC_ZERO_RETURNS_NULL])
 
@@ -1359,38 +2340,69 @@ AC_SUBST([XTMALLOC_ZERO_CFLAGS])
 # ----------------
 # Minimum version: 1.1.0
 #
-# Sets up flags for source checkers such as lint and sparse if --with-lint
-# is specified.   (Use --with-lint=sparse for sparse.)
-# Sets $LINT to name of source checker passed with --with-lint (default: lint)
-# Sets $LINT_FLAGS to flags to pass to source checker
-# Sets LINT automake conditional if enabled (default: disabled)
+# 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],[
 
-# Allow checking code with lint, sparse, etc.
+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=$withval], [use_lint=no])
-if test "x$use_lint" = "xyes" ; then
-	LINT="lint"
+
+# 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
-	LINT="$use_lint"
+   AC_MSG_ERROR([--with-lint expects 'yes' or 'no'. Use LINT variable to specify path.])
 fi
-if test "x$LINT_FLAGS" = "x" -a "x$LINT" != "xno" ; then
-    case $LINT in
-	lint|*/lint)
-	    case $host_os in
-		solaris*)
-			LINT_FLAGS="-u -b -h -erroff=E_INDISTING_FROM_TRUNC2"
-			;;
-	    esac
-	    ;;
-    esac
+
+# User supplied flags override default flags
+if test "x$LINT_FLAGS" != "x"; then
+   lint_options=$LINT_FLAGS
 fi
 
-AC_SUBST(LINT)
-AC_SUBST(LINT_FLAGS)
-AM_CONDITIONAL(LINT, [test x$LINT != xno])
+AC_SUBST([LINT_FLAGS],[$lint_options])
+AM_CONDITIONAL(LINT, [test "x$LINT" != x])
 
 ]) # XORG_WITH_LINT
 
@@ -1400,87 +2412,328 @@ AM_CONDITIONAL(LINT, [test x$LINT != xno])
 #
 # Sets up flags for building lint libraries for checking programs that call
 # functions in the library.
-# Disabled by default, enable with --enable-lint-library
-# Sets: 
-#	@LINTLIB@		- name of lint library file to make
-#	MAKE_LINT_LIB		- automake conditional
 #
+# 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])
-# Build lint "library" for more indepth checks of programs calling this library
 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" != "xno" ; then
-	if test "x$LINT" = "xno" ; then
-		AC_MSG_ERROR([Cannot make lint library without --with-lint])
-	fi
-	if test "x$make_lint_lib" = "xyes" ; then
-		LINTLIB=llib-l$1.ln
-	else
-		LINTLIB=$make_lint_lib
-	fi
+
+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 $PACKAGE_BUGREPORT])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wimplicit])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wnonnull])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Winit-self])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wmain])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wmissing-braces])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wsequence-point])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wreturn-type])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wtrigraphs])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Warray-bounds])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wwrite-strings])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Waddress])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wint-to-pointer-cast])
+XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wpointer-to-int-cast])
+fi
+
+AC_SUBST([BASE_]PREFIX[FLAGS])
+]) # XORG_COMPILER_FLAGS
+
 # XORG_CWARNFLAGS
 # ---------------
 # Minimum version: 1.2.0
+# Deprecated since: 1.16.0 (Use XORG_COMPILER_FLAGS instead)
 #
 # Defines CWARNFLAGS to enable C compiler warnings.
 #
+# This function is deprecated because it defines -fno-strict-aliasing
+# which alters the code generated by the compiler.  If -fno-strict-aliasing
+# is needed, then it should be added explicitly in the module when
+# it is updated to use BASE_CFLAGS.
+#
 AC_DEFUN([XORG_CWARNFLAGS], [
-AC_REQUIRE([AC_PROG_CC])
-if  test "x$GCC" = xyes ; then
-    CWARNFLAGS="-Wall -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes \
--Wmissing-declarations -Wnested-externs -fno-strict-aliasing \
--Wbad-function-cast"
-    case `$CC -dumpversion` in
-    3.4.* | 4.*)
-	CWARNFLAGS="$CWARNFLAGS -Wold-style-definition -Wdeclaration-after-statement"
-	;;
-    esac
-else
-    AC_CHECK_DECL([__SUNPRO_C], [SUNCC="yes"], [SUNCC="no"])
-    if test "x$SUNCC" = "xyes"; then
-	CWARNFLAGS="-v"
-    fi
-fi
-AC_SUBST(CWARNFLAGS)
-m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
+AC_REQUIRE([XORG_COMPILER_FLAGS])
+AC_REQUIRE([XORG_COMPILER_BRAND])
+AC_LANG_CASE(
+	[C], [
+		CWARNFLAGS="$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
+# 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([AC_PROG_CC])
-AC_REQUIRE([AC_PROG_CC_C99])
 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
-	AC_CHECK_DECL([__SUNPRO_C], [SUNCC="yes"], [SUNCC="no"])
-	AC_CHECK_DECL([__INTEL_COMPILER], [INTELCC="yes"], [INTELCC="no"])
-	if test "x$GCC" = xyes ; then
-		STRICT_CFLAGS="-pedantic -Werror"
-	elif test "x$SUNCC" = "xyes"; then
-		STRICT_CFLAGS="-errwarn"
-    elif test "x$INTELCC" = "xyes"; then
-		STRICT_CFLAGS="-Werror"
-	fi
+    [BASE_]PREFIX[FLAGS]="$[BASE_]PREFIX[FLAGS] $[STRICT_]PREFIX[FLAGS]"
+    AC_LANG_CASE([C], [CWARNFLAGS="$CWARNFLAGS $STRICT_CFLAGS"])
 fi
-CWARNFLAGS="$CWARNFLAGS $STRICT_CFLAGS"
-AC_SUBST([CWARNFLAGS])
+AC_SUBST([STRICT_]PREFIX[FLAGS])
+AC_SUBST([BASE_]PREFIX[FLAGS])
+AC_LANG_CASE([C], AC_SUBST([CWARNFLAGS]))
 ]) # XORG_STRICT_OPTION
 
 # XORG_DEFAULT_OPTIONS
@@ -1490,12 +2743,34 @@ AC_SUBST([CWARNFLAGS])
 # 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
@@ -1523,22 +2798,9 @@ dnl
 
 # XORG_RELEASE_VERSION
 # --------------------
-# Adds --with/without-release-string and changes the PACKAGE and
-# PACKAGE_TARNAME to use "$PACKAGE{_TARNAME}-$RELEASE_VERSION".  If
-# no option is given, PACKAGE and PACKAGE_TARNAME are unchanged.  Also
-# defines PACKAGE_VERSION_{MAJOR,MINOR,PATCHLEVEL} for modules to use.
+# Defines PACKAGE_VERSION_{MAJOR,MINOR,PATCHLEVEL} for modules to use.
  
 AC_DEFUN([XORG_RELEASE_VERSION],[
-	AC_ARG_WITH(release-version,
-			AS_HELP_STRING([--with-release-version=STRING],
-				[Use release version string in package name]),
-			[RELEASE_VERSION="$withval"],
-			[RELEASE_VERSION=""])
-	if test "x$RELEASE_VERSION" != "x"; then
-		PACKAGE="$PACKAGE-$RELEASE_VERSION"
-		PACKAGE_TARNAME="$PACKAGE_TARNAME-$RELEASE_VERSION"
-		AC_MSG_NOTICE([Building with package name set to $PACKAGE])
-	fi
 	AC_DEFINE_UNQUOTED([PACKAGE_VERSION_MAJOR],
 		[`echo $PACKAGE_VERSION | cut -d . -f 1`],
 		[Major version of this package])
@@ -1565,13 +2827,12 @@ AC_DEFUN([XORG_RELEASE_VERSION],[
 # Defines the variable CHANGELOG_CMD as the command to generate
 # ChangeLog from git.
 #
-# Arrange that distcleancheck ignores ChangeLog left over by distclean.
 #
 AC_DEFUN([XORG_CHANGELOG], [
-CHANGELOG_CMD="(GIT_DIR=\$(top_srcdir)/.git git log > .changelog.tmp && \
-mv .changelog.tmp ChangeLog) || (rm -f .changelog.tmp; touch 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])
-AC_SUBST([distcleancheck_listfiles], ['find . -type f ! -name ChangeLog -print'])
 ]) # XORG_CHANGELOG
 
diff --git a/app/xpr/configure b/app/xpr/configure
index 77cb74344..9202ac640 100644
--- a/app/xpr/configure
+++ b/app/xpr/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.62 for xpr 1.0.3.
+# Generated by GNU Autoconf 2.62 for xpr 1.0.4.
 #
 # Report bugs to <https://bugs.freedesktop.org/enter_bug.cgi?product=xorg>.
 #
@@ -596,10 +596,11 @@ SHELL=${CONFIG_SHELL-/bin/sh}
 # Identity of this package.
 PACKAGE_NAME='xpr'
 PACKAGE_TARNAME='xpr'
-PACKAGE_VERSION='1.0.3'
-PACKAGE_STRING='xpr 1.0.3'
+PACKAGE_VERSION='1.0.4'
+PACKAGE_STRING='xpr 1.0.4'
 PACKAGE_BUGREPORT='https://bugs.freedesktop.org/enter_bug.cgi?product=xorg'
 
+ac_unique_file="Makefile.am"
 # Factoring default headers for most tests.
 ac_includes_default="\
 #include <stdio.h>
@@ -716,9 +717,12 @@ am__fastdepCC_FALSE
 CPP
 GREP
 EGREP
+BASE_CFLAGS
 CWARNFLAGS
+STRICT_CFLAGS
 CHANGELOG_CMD
-distcleancheck_listfiles
+PKG_CONFIG
+INSTALL_CMD
 build
 build_cpu
 build_vendor
@@ -727,6 +731,7 @@ host
 host_cpu
 host_vendor
 host_os
+SED
 APP_MAN_SUFFIX
 LIB_MAN_SUFFIX
 FILE_MAN_SUFFIX
@@ -739,7 +744,9 @@ FILE_MAN_DIR
 MISC_MAN_DIR
 DRIVER_MAN_DIR
 ADMIN_MAN_DIR
-PKG_CONFIG
+XORG_MAN_PAGE
+MAN_SUBSTS
+AM_DEFAULT_VERBOSITY
 XPR_CFLAGS
 XPR_LIBS
 LIBOBJS
@@ -749,8 +756,8 @@ ac_user_opts='
 enable_option_checking
 enable_maintainer_mode
 enable_dependency_tracking
+enable_selective_werror
 enable_strict_compilation
-with_release_version
 '
       ac_precious_vars='build_alias
 host_alias
@@ -1316,7 +1323,7 @@ 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 xpr 1.0.3 to adapt to many kinds of systems.
+\`configure' configures xpr 1.0.4 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1386,7 +1393,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of xpr 1.0.3:";;
+     short | recursive ) echo "Configuration of xpr 1.0.4:";;
    esac
   cat <<\_ACEOF
 
@@ -1398,16 +1405,13 @@ Optional Features:
 			  (and sometimes confusing) to the casual installer
   --disable-dependency-tracking  speeds up one-time build
   --enable-dependency-tracking   do not reject slow dependency extractors
+  --disable-selective-werror
+                          Turn off selective compiler errors. (default:
+                          enabled)
   --enable-strict-compilation
                           Enable all warnings from compiler and make them
                           errors (default: disabled)
 
-Optional Packages:
-  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
-  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
-  --with-release-version=STRING
-                          Use release version string in package name
-
 Some influential environment variables:
   CC          C compiler command
   CFLAGS      C compiler flags
@@ -1487,7 +1491,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-xpr configure 1.0.3
+xpr configure 1.0.4
 generated by GNU Autoconf 2.62
 
 Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
@@ -1501,7 +1505,7 @@ 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 xpr $as_me 1.0.3, which was
+It was created by xpr $as_me 1.0.4, which was
 generated by GNU Autoconf 2.62.  Invocation command line was
 
   $ $0 $@
@@ -1867,6 +1871,11 @@ ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
+
+ac_config_headers="$ac_config_headers config.h"
+
+
+# Initialize Automake
 am__api_version="1.9"
 ac_aux_dir=
 for ac_dir in "$srcdir" "$srcdir/.." "$srcdir/../.."; do
@@ -2150,7 +2159,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='xpr'
- VERSION='1.0.3'
+ VERSION='1.0.4'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -2321,7 +2330,7 @@ fi
 
 
 
-# Require xorg-macros 1.3 or later: XORG_DEFAULT_OPTIONS
+# Require X.Org macros 1.8 or later for MAN_SUBSTS set by XORG_MANPAGE_SECTIONS
 
 
 
@@ -2333,8 +2342,69 @@ fi
 
 
 
+DEPDIR="${am__leading_dot}deps"
+
+ac_config_commands="$ac_config_commands depfiles"
+
+
+am_make=${MAKE-make}
+cat > confinc << 'END'
+am__doit:
+	@echo done
+.PHONY: am__doit
+END
+# If we don't find an include directive, just comment out the code.
+{ $as_echo "$as_me:$LINENO: checking for style of include used by $am_make" >&5
+$as_echo_n "checking for style of include used by $am_make... " >&6; }
+am__include="#"
+am__quote=
+_am_result=none
+# First try GNU make style include.
+echo "include confinc" > confmf
+# We grep out `Entering directory' and `Leaving directory'
+# messages which can occur if `w' ends up in MAKEFLAGS.
+# In particular we don't look at `^make:' because GNU make might
+# be invoked under some other name (usually "gmake"), in which
+# case it prints its new name instead of `make'.
+if test "`$am_make -s -f confmf 2> /dev/null | grep -v 'ing directory'`" = "done"; then
+   am__include=include
+   am__quote=
+   _am_result=GNU
+fi
+# Now try BSD make style include.
+if test "$am__include" = "#"; then
+   echo '.include "confinc"' > confmf
+   if test "`$am_make -s -f confmf 2> /dev/null`" = "done"; then
+      am__include=.include
+      am__quote="\""
+      _am_result=BSD
+   fi
+fi
+
+
+{ $as_echo "$as_me:$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="$ac_aux_dir/depcomp"
+  AMDEPBACKSLASH='\'
+fi
+
+
+if test "x$enable_dependency_tracking" != xno; then
+  AMDEP_TRUE=
+  AMDEP_FALSE='#'
+else
+  AMDEP_TRUE='#'
+  AMDEP_FALSE=
+fi
 
-ac_config_headers="$ac_config_headers config.h"
 
 
 ac_ext=c
@@ -3267,71 +3337,6 @@ 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
-DEPDIR="${am__leading_dot}deps"
-
-ac_config_commands="$ac_config_commands depfiles"
-
-
-am_make=${MAKE-make}
-cat > confinc << 'END'
-am__doit:
-	@echo done
-.PHONY: am__doit
-END
-# If we don't find an include directive, just comment out the code.
-{ $as_echo "$as_me:$LINENO: checking for style of include used by $am_make" >&5
-$as_echo_n "checking for style of include used by $am_make... " >&6; }
-am__include="#"
-am__quote=
-_am_result=none
-# First try GNU make style include.
-echo "include confinc" > confmf
-# We grep out `Entering directory' and `Leaving directory'
-# messages which can occur if `w' ends up in MAKEFLAGS.
-# In particular we don't look at `^make:' because GNU make might
-# be invoked under some other name (usually "gmake"), in which
-# case it prints its new name instead of `make'.
-if test "`$am_make -s -f confmf 2> /dev/null | grep -v 'ing directory'`" = "done"; then
-   am__include=include
-   am__quote=
-   _am_result=GNU
-fi
-# Now try BSD make style include.
-if test "$am__include" = "#"; then
-   echo '.include "confinc"' > confmf
-   if test "`$am_make -s -f confmf 2> /dev/null`" = "done"; then
-      am__include=.include
-      am__quote="\""
-      _am_result=BSD
-   fi
-fi
-
-
-{ $as_echo "$as_me:$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="$ac_aux_dir/depcomp"
-  AMDEPBACKSLASH='\'
-fi
-
-
-if test "x$enable_dependency_tracking" != xno; then
-  AMDEP_TRUE=
-  AMDEP_FALSE='#'
-else
-  AMDEP_TRUE='#'
-  AMDEP_FALSE=
-fi
-
-
-
 
 depcc="$CC"   am_compiler_list=
 
@@ -3442,98 +3447,206 @@ else
 fi
 
 
-# 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:$LINENO: checking for a BSD-compatible install" >&5
-$as_echo_n "checking for a BSD-compatible install... " >&6; }
-if test -z "$INSTALL"; then
-if test "${ac_cv_path_install+set}" = set; then
+   { $as_echo "$as_me:$LINENO: checking for $CC option to accept ISO C99" >&5
+$as_echo_n "checking for $CC option to accept ISO C99... " >&6; }
+if test "${ac_cv_prog_cc_c99+set}" = set; then
   $as_echo_n "(cached) " >&6
 else
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
+  ac_cv_prog_cc_c99=no
+ac_save_CC=$CC
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* 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 -xc99=all -qlanglvl=extc99
 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 '' $ac_executable_extensions; do
-	if { test -f "$as_dir/$ac_prog$ac_exec_ext" && $as_test_x "$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
-    ;;
+  CC="$ac_save_CC $ac_arg"
+  rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
 esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_cv_prog_cc_c99=$ac_arg
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
 
-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:$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='${INSTALL}'
+rm -f core conftest.err conftest.$ac_objext
+  test "x$ac_cv_prog_cc_c99" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC
 
-test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
+fi
+# AC_CACHE_VAL
+case "x$ac_cv_prog_cc_c99" in
+  x)
+    { $as_echo "$as_me:$LINENO: result: none needed" >&5
+$as_echo "none needed" >&6; } ;;
+  xno)
+    { $as_echo "$as_me:$LINENO: result: unsupported" >&5
+$as_echo "unsupported" >&6; } ;;
+  *)
+    CC="$CC $ac_cv_prog_cc_c99"
+    { $as_echo "$as_me:$LINENO: result: $ac_cv_prog_cc_c99" >&5
+$as_echo "$ac_cv_prog_cc_c99" >&6; } ;;
+esac
 
-test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
 
 
 
@@ -4156,160 +4269,152 @@ fi
 done
 
 
-   { $as_echo "$as_me:$LINENO: checking for $CC option to accept ISO C99" >&5
-$as_echo_n "checking for $CC option to accept ISO C99... " >&6; }
-if test "${ac_cv_prog_cc_c99+set}" = set; then
+
+
+
+
+{ $as_echo "$as_me:$LINENO: checking whether __clang__ is declared" >&5
+$as_echo_n "checking whether __clang__ is declared... " >&6; }
+if test "${ac_cv_have_decl___clang__+set}" = set; then
   $as_echo_n "(cached) " >&6
 else
-  ac_cv_prog_cc_c99=no
-ac_save_CC=$CC
-cat >conftest.$ac_ext <<_ACEOF
+  cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* 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)
+$ac_includes_default
+int
+main ()
 {
-  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;
+#ifndef __clang__
+  (void) __clang__;
 #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;
 }
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_cv_have_decl___clang__=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
 
-// 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;
+	ac_cv_have_decl___clang__=no
+fi
 
-  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);
-}
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$LINENO: result: $ac_cv_have_decl___clang__" >&5
+$as_echo "$ac_cv_have_decl___clang__" >&6; }
+if test $ac_cv_have_decl___clang__ = yes; then
+  CLANGCC="yes"
+else
+  CLANGCC="no"
+fi
 
+{ $as_echo "$as_me:$LINENO: checking whether __INTEL_COMPILER is declared" >&5
+$as_echo_n "checking whether __INTEL_COMPILER is declared... " >&6; }
+if test "${ac_cv_have_decl___INTEL_COMPILER+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
 int
 main ()
 {
+#ifndef __INTEL_COMPILER
+  (void) __INTEL_COMPILER;
+#endif
 
-  // 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,
-  };
+  ;
+  return 0;
+}
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  ac_cv_have_decl___INTEL_COMPILER=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
 
-  ni.number = 58;
+	ac_cv_have_decl___INTEL_COMPILER=no
+fi
 
-  int dynamic_array[ni.number];
-  dynamic_array[ni.number - 1] = 543;
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$LINENO: result: $ac_cv_have_decl___INTEL_COMPILER" >&5
+$as_echo "$ac_cv_have_decl___INTEL_COMPILER" >&6; }
+if test $ac_cv_have_decl___INTEL_COMPILER = yes; then
+  INTELCC="yes"
+else
+  INTELCC="no"
+fi
 
-  // work around unused variable warnings
-  return (!success || bignum == 0LL || ubignum == 0uLL || newvar[0] == 'x'
-	  || dynamic_array[ni.number - 1] != 543);
+{ $as_echo "$as_me:$LINENO: checking whether __SUNPRO_C is declared" >&5
+$as_echo_n "checking whether __SUNPRO_C is declared... " >&6; }
+if test "${ac_cv_have_decl___SUNPRO_C+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+int
+main ()
+{
+#ifndef __SUNPRO_C
+  (void) __SUNPRO_C;
+#endif
 
   ;
   return 0;
 }
 _ACEOF
-for ac_arg in '' -std=gnu99 -std=c99 -c99 -AC99 -xc99=all -qlanglvl=extc99
-do
-  CC="$ac_save_CC $ac_arg"
-  rm -f conftest.$ac_objext
+rm -f conftest.$ac_objext
 if { (ac_try="$ac_compile"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
@@ -4327,37 +4432,145 @@ $as_echo "$ac_try_echo") >&5
 	 test -z "$ac_c_werror_flag" ||
 	 test ! -s conftest.err
        } && test -s conftest.$ac_objext; then
-  ac_cv_prog_cc_c99=$ac_arg
+  ac_cv_have_decl___SUNPRO_C=yes
 else
   $as_echo "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
+	ac_cv_have_decl___SUNPRO_C=no
+fi
 
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$LINENO: result: $ac_cv_have_decl___SUNPRO_C" >&5
+$as_echo "$ac_cv_have_decl___SUNPRO_C" >&6; }
+if test $ac_cv_have_decl___SUNPRO_C = yes; then
+  SUNCC="yes"
+else
+  SUNCC="no"
 fi
 
-rm -f core conftest.err conftest.$ac_objext
-  test "x$ac_cv_prog_cc_c99" != "xno" && break
+
+
+
+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:$LINENO: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if test "${ac_cv_path_PKG_CONFIG+set}" = set; 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 '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_path_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
 done
-rm -f conftest.$ac_ext
-CC=$ac_save_CC
+done
+IFS=$as_save_IFS
 
+  ;;
+esac
 fi
-# AC_CACHE_VAL
-case "x$ac_cv_prog_cc_c99" in
-  x)
-    { $as_echo "$as_me:$LINENO: result: none needed" >&5
-$as_echo "none needed" >&6; } ;;
-  xno)
-    { $as_echo "$as_me:$LINENO: result: unsupported" >&5
-$as_echo "unsupported" >&6; } ;;
+PKG_CONFIG=$ac_cv_path_PKG_CONFIG
+if test -n "$PKG_CONFIG"; then
+  { $as_echo "$as_me:$LINENO: result: $PKG_CONFIG" >&5
+$as_echo "$PKG_CONFIG" >&6; }
+else
+  { $as_echo "$as_me:$LINENO: result: no" >&5
+$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:$LINENO: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if test "${ac_cv_path_ac_pt_PKG_CONFIG+set}" = set; 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.
+  ;;
   *)
-    CC="$CC $ac_cv_prog_cc_c99"
-    { $as_echo "$as_me:$LINENO: result: $ac_cv_prog_cc_c99" >&5
-$as_echo "$ac_cv_prog_cc_c99" >&6; } ;;
+  as_save_IFS=$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 '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$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:$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:$LINENO: result: $ac_pt_PKG_CONFIG" >&5
+$as_echo "$ac_pt_PKG_CONFIG" >&6; }
+else
+  { $as_echo "$as_me:$LINENO: result: no" >&5
+$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:$LINENO: WARNING: In the future, Autoconf will not detect cross-tools
+whose name does not start with the host triplet.  If you think this
+configuration is useful to you, please write to autoconf@gnu.org." >&5
+$as_echo "$as_me: WARNING: In the future, Autoconf will not detect cross-tools
+whose name does not start with the host triplet.  If you think this
+configuration is useful to you, please write to autoconf@gnu.org." >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKG_CONFIG=$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:$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:$LINENO: result: yes" >&5
+$as_echo "yes" >&6; }
+	else
+		{ $as_echo "$as_me:$LINENO: result: no" >&5
+$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 ||
   { { $as_echo "$as_me:$LINENO: error: cannot run $SHELL $ac_aux_dir/config.sub" >&5
@@ -4441,22 +4654,121 @@ IFS=$ac_save_IFS
 case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac
 
 
+{ $as_echo "$as_me:$LINENO: checking for a sed that does not truncate output" >&5
+$as_echo_n "checking for a sed that does not truncate output... " >&6; }
+if test "${ac_cv_path_SED+set}" = set; 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
+     $as_unset ac_script || ac_script=
+     if test -z "$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"
+      { test -f "$ac_path_SED" && $as_test_x "$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
+    ac_count=`expr $ac_count + 1`
+    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
+    { { $as_echo "$as_me:$LINENO: error: no acceptable sed could be found in \$PATH" >&5
+$as_echo "$as_me: error: no acceptable sed could be found in \$PATH" >&2;}
+   { (exit 1); exit 1; }; }
+  fi
+else
+  ac_cv_path_SED=$SED
+fi
 
+fi
+{ $as_echo "$as_me:$LINENO: result: $ac_cv_path_SED" >&5
+$as_echo "$ac_cv_path_SED" >&6; }
+ SED="$ac_cv_path_SED"
+  rm -f conftest.sed
 
-if  test "x$GCC" = xyes ; then
-    CWARNFLAGS="-Wall -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes \
--Wmissing-declarations -Wnested-externs -fno-strict-aliasing \
--Wbad-function-cast"
-    case `$CC -dumpversion` in
-    3.4.* | 4.*)
-	CWARNFLAGS="$CWARNFLAGS -Wold-style-definition -Wdeclaration-after-statement"
-	;;
-    esac
+
+
+
+
+
+# Check whether --enable-selective-werror was given.
+if test "${enable_selective_werror+set}" = set; then
+  enableval=$enable_selective_werror; SELECTIVE_WERROR=$enableval
 else
-    { $as_echo "$as_me:$LINENO: checking whether __SUNPRO_C is declared" >&5
-$as_echo_n "checking whether __SUNPRO_C is declared... " >&6; }
-if test "${ac_cv_have_decl___SUNPRO_C+set}" = set; then
+  SELECTIVE_WERROR=yes
+fi
+
+
+
+
+
+# -v is too short to test reliably with XORG_TESTSET_CFLAG
+if test "x$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
   $as_echo_n "(cached) " >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
@@ -4465,18 +4777,205 @@ _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
-$ac_includes_default
+int i;
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Wall" >&5
+$as_echo_n "checking if $CC supports-Wall... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wall
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
 int
 main ()
 {
-#ifndef __SUNPRO_C
-  (void) __SUNPRO_C;
-#endif
 
   ;
   return 0;
 }
 _ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
 rm -f conftest.$ac_objext
 if { (ac_try="$ac_compile"
 case "(($ac_try" in
@@ -4495,29 +4994,8578 @@ $as_echo "$ac_try_echo") >&5
 	 test -z "$ac_c_werror_flag" ||
 	 test ! -s conftest.err
        } && test -s conftest.$ac_objext; then
-  ac_cv_have_decl___SUNPRO_C=yes
+  xorg_cv_cc_flag_unknown_warning_option=yes
 else
   $as_echo "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-	ac_cv_have_decl___SUNPRO_C=no
+	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:$LINENO: result: $ac_cv_have_decl___SUNPRO_C" >&5
-$as_echo "$ac_cv_have_decl___SUNPRO_C" >&6; }
-if test $ac_cv_have_decl___SUNPRO_C = yes; then
-  SUNCC="yes"
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
 else
-  SUNCC="no"
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
 fi
 
-    if test "x$SUNCC" = "xyes"; then
-	CWARNFLAGS="-v"
-    fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Wpointer-arith" >&5
+$as_echo_n "checking if $CC supports-Wpointer-arith... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wpointer_arith
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Wmissing-declarations" >&5
+$as_echo_n "checking if $CC supports-Wmissing-declarations... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wmissing_declarations
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Wformat=2" >&5
+$as_echo_n "checking if $CC supports-Wformat=2... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wformat_2
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Wformat" >&5
+$as_echo_n "checking if $CC supports-Wformat... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wformat
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Wstrict-prototypes" >&5
+$as_echo_n "checking if $CC supports-Wstrict-prototypes... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wstrict_prototypes
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Wmissing-prototypes" >&5
+$as_echo_n "checking if $CC supports-Wmissing-prototypes... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wmissing_prototypes
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Wnested-externs" >&5
+$as_echo_n "checking if $CC supports-Wnested-externs... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wnested_externs
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Wbad-function-cast" >&5
+$as_echo_n "checking if $CC supports-Wbad-function-cast... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wbad_function_cast
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Wold-style-definition" >&5
+$as_echo_n "checking if $CC supports-Wold-style-definition... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wold_style_definition
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Wdeclaration-after-statement" >&5
+$as_echo_n "checking if $CC supports-Wdeclaration-after-statement... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wdeclaration_after_statement
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Wunused" >&5
+$as_echo_n "checking if $CC supports-Wunused... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wunused
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Wuninitialized" >&5
+$as_echo_n "checking if $CC supports-Wuninitialized... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wuninitialized
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Wshadow" >&5
+$as_echo_n "checking if $CC supports-Wshadow... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wshadow
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
 fi
 
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Wcast-qual" >&5
+$as_echo_n "checking if $CC supports-Wcast-qual... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wcast_qual
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Wmissing-noreturn" >&5
+$as_echo_n "checking if $CC supports-Wmissing-noreturn... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wmissing_noreturn
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Wmissing-format-attribute" >&5
+$as_echo_n "checking if $CC supports-Wmissing-format-attribute... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wmissing_format_attribute
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Wredundant-decls" >&5
+$as_echo_n "checking if $CC supports-Wredundant-decls... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wredundant_decls
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Werror=implicit" >&5
+$as_echo_n "checking if $CC supports-Werror=implicit... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror_implicit
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-errwarn=E_NO_EXPLICIT_TYPE_GIVEN -errwarn=E_NO_IMPLICIT_DECL_ALLOWED" >&5
+$as_echo_n "checking if $CC supports-errwarn=E_NO_EXPLICIT_TYPE_GIVEN -errwarn=E_NO_IMPLICIT_DECL_ALLOWED... " >&6; }
+		cacheid=xorg_cv_cc_flag__errwarn_E_NO_EXPLICIT_TYPE_GIVEN__errwarn_E_NO_IMPLICIT_DECL_ALLOWED
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Werror=nonnull" >&5
+$as_echo_n "checking if $CC supports-Werror=nonnull... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror_nonnull
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Werror=init-self" >&5
+$as_echo_n "checking if $CC supports-Werror=init-self... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror_init_self
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Werror=main" >&5
+$as_echo_n "checking if $CC supports-Werror=main... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror_main
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Werror=missing-braces" >&5
+$as_echo_n "checking if $CC supports-Werror=missing-braces... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror_missing_braces
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Werror=sequence-point" >&5
+$as_echo_n "checking if $CC supports-Werror=sequence-point... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror_sequence_point
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Werror=return-type" >&5
+$as_echo_n "checking if $CC supports-Werror=return-type... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror_return_type
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-errwarn=E_FUNC_HAS_NO_RETURN_STMT" >&5
+$as_echo_n "checking if $CC supports-errwarn=E_FUNC_HAS_NO_RETURN_STMT... " >&6; }
+		cacheid=xorg_cv_cc_flag__errwarn_E_FUNC_HAS_NO_RETURN_STMT
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Werror=trigraphs" >&5
+$as_echo_n "checking if $CC supports-Werror=trigraphs... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror_trigraphs
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Werror=array-bounds" >&5
+$as_echo_n "checking if $CC supports-Werror=array-bounds... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror_array_bounds
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Werror=write-strings" >&5
+$as_echo_n "checking if $CC supports-Werror=write-strings... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror_write_strings
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Werror=address" >&5
+$as_echo_n "checking if $CC supports-Werror=address... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror_address
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Werror=int-to-pointer-cast" >&5
+$as_echo_n "checking if $CC supports-Werror=int-to-pointer-cast... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror_int_to_pointer_cast
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-errwarn=E_BAD_PTR_INT_COMBINATION" >&5
+$as_echo_n "checking if $CC supports-errwarn=E_BAD_PTR_INT_COMBINATION... " >&6; }
+		cacheid=xorg_cv_cc_flag__errwarn_E_BAD_PTR_INT_COMBINATION
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Werror=pointer-to-int-cast" >&5
+$as_echo_n "checking if $CC supports-Werror=pointer-to-int-cast... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror_pointer_to_int_cast
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Wimplicit" >&5
+$as_echo_n "checking if $CC supports-Wimplicit... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wimplicit
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Wnonnull" >&5
+$as_echo_n "checking if $CC supports-Wnonnull... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wnonnull
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Winit-self" >&5
+$as_echo_n "checking if $CC supports-Winit-self... " >&6; }
+		cacheid=xorg_cv_cc_flag__Winit_self
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Wmain" >&5
+$as_echo_n "checking if $CC supports-Wmain... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wmain
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Wmissing-braces" >&5
+$as_echo_n "checking if $CC supports-Wmissing-braces... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wmissing_braces
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Wsequence-point" >&5
+$as_echo_n "checking if $CC supports-Wsequence-point... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wsequence_point
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Wreturn-type" >&5
+$as_echo_n "checking if $CC supports-Wreturn-type... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wreturn_type
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Wtrigraphs" >&5
+$as_echo_n "checking if $CC supports-Wtrigraphs... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wtrigraphs
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Warray-bounds" >&5
+$as_echo_n "checking if $CC supports-Warray-bounds... " >&6; }
+		cacheid=xorg_cv_cc_flag__Warray_bounds
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Wwrite-strings" >&5
+$as_echo_n "checking if $CC supports-Wwrite-strings... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wwrite_strings
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Waddress" >&5
+$as_echo_n "checking if $CC supports-Waddress... " >&6; }
+		cacheid=xorg_cv_cc_flag__Waddress
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Wint-to-pointer-cast" >&5
+$as_echo_n "checking if $CC supports-Wint-to-pointer-cast... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wint_to_pointer_cast
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Wpointer-to-int-cast" >&5
+$as_echo_n "checking if $CC supports-Wpointer-to-int-cast... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wpointer_to_int_cast
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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
+
 
 
 
@@ -4532,10 +13580,32 @@ else
   STRICT_COMPILE=no
 fi
 
-if test "x$STRICT_COMPILE" = "xyes"; then
-	{ $as_echo "$as_me:$LINENO: checking whether __SUNPRO_C is declared" >&5
-$as_echo_n "checking whether __SUNPRO_C is declared... " >&6; }
-if test "${ac_cv_have_decl___SUNPRO_C+set}" = set; then
+
+
+
+
+
+STRICT_CFLAGS=""
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
   $as_echo_n "(cached) " >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
@@ -4544,18 +13614,205 @@ _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
-$ac_includes_default
+int i;
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unknown_warning_option=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unknown_warning_option=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-pedantic" >&5
+$as_echo_n "checking if $CC supports-pedantic... " >&6; }
+		cacheid=xorg_cv_cc_flag__pedantic
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
 int
 main ()
 {
-#ifndef __SUNPRO_C
-  (void) __SUNPRO_C;
-#endif
 
   ;
   return 0;
 }
 _ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
 rm -f conftest.$ac_objext
 if { (ac_try="$ac_compile"
 case "(($ac_try" in
@@ -4574,27 +13831,91 @@ $as_echo "$ac_try_echo") >&5
 	 test -z "$ac_c_werror_flag" ||
 	 test ! -s conftest.err
        } && test -s conftest.$ac_objext; then
-  ac_cv_have_decl___SUNPRO_C=yes
+  xorg_cv_cc_flag_unknown_warning_option=yes
 else
   $as_echo "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-	ac_cv_have_decl___SUNPRO_C=no
+	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:$LINENO: result: $ac_cv_have_decl___SUNPRO_C" >&5
-$as_echo "$ac_cv_have_decl___SUNPRO_C" >&6; }
-if test $ac_cv_have_decl___SUNPRO_C = yes; then
-  SUNCC="yes"
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
 else
-  SUNCC="no"
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
 fi
 
-	{ $as_echo "$as_me:$LINENO: checking whether __INTEL_COMPILER is declared" >&5
-$as_echo_n "checking whether __INTEL_COMPILER is declared... " >&6; }
-if test "${ac_cv_have_decl___INTEL_COMPILER+set}" = set; then
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-Werror" >&5
+$as_echo_n "checking if $CC supports-Werror... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
   $as_echo_n "(cached) " >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
@@ -4603,18 +13924,173 @@ _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
-$ac_includes_default
+int i;
 int
 main ()
 {
-#ifndef __INTEL_COMPILER
-  (void) __INTEL_COMPILER;
-#endif
 
   ;
   return 0;
 }
 _ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports-errwarn" >&5
+$as_echo_n "checking if $CC supports-errwarn... " >&6; }
+		cacheid=xorg_cv_cc_flag__errwarn
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
+fi
+
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
+if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
 rm -f conftest.$ac_objext
 if { (ac_try="$ac_compile"
 case "(($ac_try" in
@@ -4633,51 +14109,166 @@ $as_echo "$ac_try_echo") >&5
 	 test -z "$ac_c_werror_flag" ||
 	 test ! -s conftest.err
        } && test -s conftest.$ac_objext; then
-  ac_cv_have_decl___INTEL_COMPILER=yes
+  xorg_cv_cc_flag_unknown_warning_option=yes
 else
   $as_echo "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-	ac_cv_have_decl___INTEL_COMPILER=no
+	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:$LINENO: result: $ac_cv_have_decl___INTEL_COMPILER" >&5
-$as_echo "$ac_cv_have_decl___INTEL_COMPILER" >&6; }
-if test $ac_cv_have_decl___INTEL_COMPILER = yes; then
-  INTELCC="yes"
-else
-  INTELCC="no"
+{ $as_echo "$as_me:$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$GCC" = xyes ; then
-		STRICT_CFLAGS="-pedantic -Werror"
-	elif test "x$SUNCC" = "xyes"; then
-		STRICT_CFLAGS="-errwarn"
-    elif test "x$INTELCC" = "xyes"; then
-		STRICT_CFLAGS="-Werror"
+if test "x$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:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
+if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+_ACEOF
+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:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  xorg_cv_cc_flag_unused_command_line_argument=yes
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-CWARNFLAGS="$CWARNFLAGS $STRICT_CFLAGS"
 
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:$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
 
-# Check whether --with-release-version was given.
-if test "${with_release_version+set}" = set; then
-  withval=$with_release_version; RELEASE_VERSION="$withval"
+		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
+		fi
+
+		CFLAGS="$CFLAGS -Werror=attributes"
+
+		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Werror=attributes" >&5
+$as_echo_n "checking if $CC supports-Werror=attributes... " >&6; }
+		cacheid=xorg_cv_cc_flag__Werror_attributes
+		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+int i;
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+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=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then
+  eval $cacheid=yes
 else
-  RELEASE_VERSION=""
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval $cacheid=no
 fi
 
-	if test "x$RELEASE_VERSION" != "x"; then
-		PACKAGE="$PACKAGE-$RELEASE_VERSION"
-		PACKAGE_TARNAME="$PACKAGE_TARNAME-$RELEASE_VERSION"
-		{ $as_echo "$as_me:$LINENO: Building with package name set to $PACKAGE" >&5
-$as_echo "$as_me: Building with package name set to $PACKAGE" >&6;}
+rm -rf conftest.dSYM
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+
+
+		CFLAGS="$xorg_testset_save_CFLAGS"
+
+		eval supported=\$$cacheid
+		{ $as_echo "$as_me:$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
@@ -4702,11 +14293,20 @@ _ACEOF
 
 
 
-CHANGELOG_CMD="(GIT_DIR=\$(top_srcdir)/.git git log > .changelog.tmp && \
-mv .changelog.tmp ChangeLog) || (rm -f .changelog.tmp; touch 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)"
 
-distcleancheck_listfiles='find . -type f ! -name ChangeLog -print'
+
+
+
+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)"
+
 
 
 
@@ -4780,129 +14380,29 @@ 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'"
 
-# Checks for pkg-config packages
-
-
-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:$LINENO: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_PKG_CONFIG+set}" = set; 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 '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
-    ac_cv_path_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
-    $as_echo "$as_me:$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:$LINENO: result: $PKG_CONFIG" >&5
-$as_echo "$PKG_CONFIG" >&6; }
-else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
-fi
 
+AM_DEFAULT_VERBOSITY=1
 
-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:$LINENO: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_ac_pt_PKG_CONFIG+set}" = set; 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 '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$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:$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:$LINENO: result: $ac_pt_PKG_CONFIG" >&5
-$as_echo "$ac_pt_PKG_CONFIG" >&6; }
-else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
-$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:$LINENO: WARNING: In the future, Autoconf will not detect cross-tools
-whose name does not start with the host triplet.  If you think this
-configuration is useful to you, please write to autoconf@gnu.org." >&5
-$as_echo "$as_me: WARNING: In the future, Autoconf will not detect cross-tools
-whose name does not start with the host triplet.  If you think this
-configuration is useful to you, please write to autoconf@gnu.org." >&2;}
-ac_tool_warned=yes ;;
-esac
-    PKG_CONFIG=$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:$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:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
-	else
-		{ $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
-		PKG_CONFIG=""
-	fi
 
-fi
+# Checks for pkg-config packages
 
 pkg_failed=no
 { $as_echo "$as_me:$LINENO: checking for XPR" >&5
@@ -4913,12 +14413,12 @@ if test -n "$PKG_CONFIG"; then
         pkg_cv_XPR_CFLAGS="$XPR_CFLAGS"
     else
         if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"xmuu x11\"") >&5
-  ($PKG_CONFIG --exists --print-errors "xmuu x11") 2>&5
+    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"xmuu x11 xproto >= 7.0.17\"") >&5
+  ($PKG_CONFIG --exists --print-errors "xmuu x11 xproto >= 7.0.17") 2>&5
   ac_status=$?
   $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; then
-  pkg_cv_XPR_CFLAGS=`$PKG_CONFIG --cflags "xmuu x11" 2>/dev/null`
+  pkg_cv_XPR_CFLAGS=`$PKG_CONFIG --cflags "xmuu x11 xproto >= 7.0.17" 2>/dev/null`
 else
   pkg_failed=yes
 fi
@@ -4931,12 +14431,12 @@ if test -n "$PKG_CONFIG"; then
         pkg_cv_XPR_LIBS="$XPR_LIBS"
     else
         if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"xmuu x11\"") >&5
-  ($PKG_CONFIG --exists --print-errors "xmuu x11") 2>&5
+    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"xmuu x11 xproto >= 7.0.17\"") >&5
+  ($PKG_CONFIG --exists --print-errors "xmuu x11 xproto >= 7.0.17") 2>&5
   ac_status=$?
   $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; then
-  pkg_cv_XPR_LIBS=`$PKG_CONFIG --libs "xmuu x11" 2>/dev/null`
+  pkg_cv_XPR_LIBS=`$PKG_CONFIG --libs "xmuu x11 xproto >= 7.0.17" 2>/dev/null`
 else
   pkg_failed=yes
 fi
@@ -4955,14 +14455,14 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        XPR_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "xmuu x11"`
+	        XPR_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "xmuu x11 xproto >= 7.0.17"`
         else
-	        XPR_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "xmuu x11"`
+	        XPR_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "xmuu x11 xproto >= 7.0.17"`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$XPR_PKG_ERRORS" >&5
 
-	{ { $as_echo "$as_me:$LINENO: error: Package requirements (xmuu x11) were not met:
+	{ { $as_echo "$as_me:$LINENO: error: Package requirements (xmuu x11 xproto >= 7.0.17) were not met:
 
 $XPR_PKG_ERRORS
 
@@ -4973,7 +14473,7 @@ Alternatively, you may set the environment variables XPR_CFLAGS
 and XPR_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
 " >&5
-$as_echo "$as_me: error: Package requirements (xmuu x11) were not met:
+$as_echo "$as_me: error: Package requirements (xmuu x11 xproto >= 7.0.17) were not met:
 
 $XPR_PKG_ERRORS
 
@@ -5015,8 +14515,6 @@ $as_echo "yes" >&6; }
 	:
 fi
 
-
-
 ac_config_files="$ac_config_files Makefile"
 
 cat >confcache <<\_ACEOF
@@ -5459,7 +14957,7 @@ exec 6>&1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by xpr $as_me 1.0.3, which was
+This file was extended by xpr $as_me 1.0.4, which was
 generated by GNU Autoconf 2.62.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -5512,7 +15010,7 @@ Report bugs to <bug-autoconf@gnu.org>."
 _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_version="\\
-xpr config.status 1.0.3
+xpr config.status 1.0.4
 configured by $0, generated by GNU Autoconf 2.62,
   with options \\"`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`\\"
 
diff --git a/app/xpr/configure.ac b/app/xpr/configure.ac
index c040ffbd4..090a6a7b1 100644
--- a/app/xpr/configure.ac
+++ b/app/xpr/configure.ac
@@ -1,6 +1,6 @@
 
 dnl  Copyright 2005 Red Hat, Inc.
-dnl 
+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
@@ -10,7 +10,7 @@ dnl  advertising or publicity pertaining to distribution of the software without
 dnl  specific, written prior permission.  Red Hat makes no
 dnl  representations about the suitability of this software for any purpose.  It
 dnl  is provided "as is" without express or implied warranty.
-dnl 
+dnl
 dnl  RED HAT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 dnl  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
 dnl  EVENT SHALL RED HAT BE LIABLE FOR ANY SPECIAL, INDIRECT OR
@@ -21,26 +21,25 @@ dnl  PERFORMANCE OF THIS SOFTWARE.
 dnl
 dnl Process this file with autoconf to create configure.
 
-AC_PREREQ([2.57])
-AC_INIT(xpr,[1.0.3], [https://bugs.freedesktop.org/enter_bug.cgi?product=xorg],xpr)
+# Initialize Autoconf
+AC_PREREQ([2.60])
+AC_INIT([xpr], [1.0.4],
+        [https://bugs.freedesktop.org/enter_bug.cgi?product=xorg], [xpr])
+AC_CONFIG_SRCDIR([Makefile.am])
+AC_CONFIG_HEADERS([config.h])
+
+# Initialize Automake
 AM_INIT_AUTOMAKE([dist-bzip2])
 AM_MAINTAINER_MODE
 
-# Require xorg-macros 1.3 or later: XORG_DEFAULT_OPTIONS
+# Require X.Org macros 1.8 or later for MAN_SUBSTS set by XORG_MANPAGE_SECTIONS
 m4_ifndef([XORG_MACROS_VERSION],
-	  [m4_fatal([must install xorg-macros 1.3 or later before running autoconf/autogen])])
-XORG_MACROS_VERSION(1.3)
-
-AM_CONFIG_HEADER(config.h)
-
-AC_PROG_CC
-AC_PROG_INSTALL
-
+	  [m4_fatal([must install xorg-macros 1.8 or later before running autoconf/autogen])])
+XORG_MACROS_VERSION(1.8)
 XORG_DEFAULT_OPTIONS
 
 # Checks for pkg-config packages
-PKG_CHECK_MODULES(XPR, xmuu x11)
-AC_SUBST(XPR_CFLAGS)
-AC_SUBST(XPR_LIBS)
+PKG_CHECK_MODULES(XPR, [xmuu x11 xproto >= 7.0.17])
 
-AC_OUTPUT([Makefile])
+AC_CONFIG_FILES([Makefile])
+AC_OUTPUT
diff --git a/app/xpr/x2jet.c b/app/xpr/x2jet.c
index 63e3430e1..3246c33e4 100644
--- a/app/xpr/x2jet.c
+++ b/app/xpr/x2jet.c
@@ -27,13 +27,13 @@
 
 Copyright (c) 1988 by Hewlett-Packard Company
 
-Permission to use, copy, modify, and distribute this software 
-and its documentation for any purpose and without fee is hereby 
-granted, 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 
-Hewlett-Packard not be used in advertising or publicity 
-pertaining to distribution of the software without specific, written 
+Permission to use, copy, modify, and distribute this software
+and its documentation for any purpose and without fee is hereby
+granted, 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
+Hewlett-Packard not be used in advertising or publicity
+pertaining to distribution of the software without specific, written
 prior permission.
 
 ********************************************************/
@@ -72,6 +72,7 @@ from the X Consortium.
 #include <stdarg.h>
 #include <X11/Xlib.h>
 #include <X11/XWDFile.h>
+#include <X11/Xfuncproto.h>
 
 #include "xpr.h"
 
@@ -260,10 +261,7 @@ static void write_image (
   enum orientation orient,
   enum device device);
 static void fatal_err (const char *s, ...)
-#if defined(__GNUC__) && (__GNUC__ > 2)
-__attribute__((noreturn, format(printf, 1, 2)))
-#endif
-    ;
+  _X_NORETURN _X_ATTRIBUTE_PRINTF(1,2);
 
 
 /* Computes the centipoint width of one printer dot. */
@@ -296,7 +294,7 @@ void set_image_limits (
 
   if ((limit.width != xwd_header.pixmap_width)
       || (limit.height != xwd_header.pixmap_height))
-    fprintf(stderr,(catgets(nlmsg_fd,NL_SETN,1, "%s: Warning: %ld x %ld image clipped to %ld x %ld.\n")),
+    fprintf(stderr,(catgets(nlmsg_fd,NL_SETN,1, "%s: Warning: %d x %d image clipped to %ld x %ld.\n")),
 	    progname,
 	    xwd_header.pixmap_width, xwd_header.pixmap_height,
 	    limit.width, limit.height);
@@ -523,7 +521,7 @@ static unsigned short fullintensity;
 static long *colormap;
 
 
-/* Pjcolor array is used to hold the scaled RGB triple values 
+/* Pjcolor array is used to hold the scaled RGB triple values
  * programmed into the printer.
  */
 static long pjcolor[MAX_PJ_COLOR];
@@ -548,7 +546,7 @@ typedef struct colorindex {
 
 /* Global data for color interpretation.  This structure serves as a home
  * for the color index lists (only used when processing DirectColor or
- * TrueColor visual types).  It also holds color processing switches and a	
+ * TrueColor visual types).  It also holds color processing switches and a
  * pointer to the output file to reduce parameter passing overhead.
  */
 static struct {
@@ -616,7 +614,7 @@ void reset_color_mapping (void)
     /* preload for monochrome output */
     pjcolor[0] = WHITE;
     pjcolor[1] = BLACK;
-  }    
+  }
 
   if (Direct_or_TrueColor) {
     /* move color index chain cells onto the free list */
@@ -648,7 +646,7 @@ void prepare_color_mapping (
      fullintensity = (fullintensity << 1) | 1;
   for (n = sizeof(short) * 8 - xwd_header.bits_per_rgb; n > 0; n--)
      fullintensity = (fullintensity << 1);
-     
+
   Direct_or_TrueColor =  (xwd_header.visual_class == DirectColor
 			  || xwd_header.visual_class == TrueColor);
   color.PaintJet = paintjet;
@@ -736,7 +734,7 @@ int load_printer_color (
 {
   int n, red, blue, green, xred, xgreen, xblue;
   long compositeRGB;
-    
+
   if (colormap[index] != EMPTY)
     /* printer has already been programmed for this color index */
     return(1);	/* "success" */
@@ -1043,27 +1041,35 @@ void download_colors (
 }
 
 
+static _X_INLINE _X_NORETURN
+void invalid_depth_for_visual(int depth, const char *name)
+{
+    fatal_err(catgets(nlmsg_fd,NL_SETN,25,
+		      "%d bit deep %s bitmap not supported.\n"),
+	      depth, name);
+}
+
 static
 void validate_visual(void)
 {
   int depth = xwd_header.pixmap_depth;
-  char *errmsg = catgets(nlmsg_fd,NL_SETN,25,
-				"%d bit deep %s bitmap not supported.\n");
 
   switch (xwd_header.visual_class) {
   case GrayScale:
-    if (depth > 8)  fatal_err(errmsg, depth, "GrayScale");    break;
+    if (depth > 8)  invalid_depth_for_visual(depth, "GrayScale");    break;
   case StaticGray:
-    if (depth > 8)  fatal_err(errmsg, depth, "StaticGray");    break;
+    if (depth > 8)  invalid_depth_for_visual(depth, "StaticGray");   break;
   case PseudoColor:
-    if (depth > 8)  fatal_err(errmsg, depth, "PseudoColor");    break;
+    if (depth > 8)  invalid_depth_for_visual(depth, "PseudoColor");  break;
   case StaticColor:
-    if (depth > 8)  fatal_err(errmsg, depth, "StaticColor");    break;
+    if (depth > 8)  invalid_depth_for_visual(depth, "StaticColor");  break;
   case DirectColor:
+    if (depth != 12 && depth != 24)
+	invalid_depth_for_visual(depth, "DirectColor");
+    break;
   case TrueColor:
     if (depth != 12 && depth != 24)
-       fatal_err(errmsg, depth, (xwd_header.visual_class == DirectColor)
-                               ? "DirectColor" : "TrueColor");
+	invalid_depth_for_visual(depth, "TrueColor");
     break;
   default:
     fatal_err((catgets(nlmsg_fd,NL_SETN,26,
@@ -1173,7 +1179,7 @@ void write_image_prefix (
     fprintf(out,"\033&a%dH\033&a%dV",
 	    /* imageloc x & y are written in decipoints */
 	    (int) imageloc.x / 10, (int) imageloc.y / 10);
-  
+
   /* If doing transparencies, tell the printer before raster graphics */
   if (slide && device != LJET)
      fprintf(out, "\033&k3W");
@@ -1415,7 +1421,7 @@ void index_by_pixel(
    long *lp;
    char *line_pixels;
    register char *lc;
-  
+
   if (!(line_pixels = malloc(length)))
     fatal_err((catgets(nlmsg_fd,NL_SETN,17,
 			"Could not allocate raster line memory.")));
@@ -1444,7 +1450,7 @@ void write_raster_line (
   long *lp;
   char *line_colors, *raster_line;
   register char *lc, *rl, byte = 0;
-  
+
   if (device == PJETXL) {
      if (Direct_or_TrueColor)
         direct_by_pixel(out, line, length, device);
@@ -1647,7 +1653,7 @@ void write_image (
     write_XY_image(out, scale, orient, device);  break;
   case  ZPixmap:
     write_Z_image(out, scale, orient, device);   break;
-  default: 
+  default:
     fatal_err((catgets(nlmsg_fd,NL_SETN,23, "image not in XY or Z format.")));
   }
 }
@@ -1674,7 +1680,7 @@ void x2jet(
 
   read_xwd_data(in);
 
-  Z_pixel_mask = ~(0xFFFFFFFFL << xwd_header.pixmap_depth);
+  Z_pixel_mask = ~(0xFFFFFFFFUL << xwd_header.pixmap_depth);
 
   prepare_color_mapping(invert, paintjet, cutoff, out);
 
@@ -1684,7 +1690,7 @@ void x2jet(
 
   write_image_prefix(out, scale, density, header, device, position_on_page,
 		     initial_formfeed, orient, gamma, render, slide);
-  
+
   write_image(out, scale, orient, device);
 
   write_image_suffix(out, trailer, position_on_page, slide, render, device);
diff --git a/app/xpr/x2pmp.c b/app/xpr/x2pmp.c
index 0af17619d..ce1627b0d 100644
--- a/app/xpr/x2pmp.c
+++ b/app/xpr/x2pmp.c
@@ -11,6 +11,7 @@
 #include <X11/XWDFile.h>
 #include <X11/Xfuncs.h>
 #include <errno.h>
+#include <string.h>
 
 #include "pmp.h"
 #include "xpr.h"
@@ -23,7 +24,7 @@
 /* Local prototypes */
 static unsigned char *magnification_table(int scale);
 static int bits_set(int n);
-static void leave(const char *s);
+static void leave(const char *s) _X_NORETURN;
 static void p_move_abs(FILE *p, int x, int y);
 static void p_save_cursor(FILE *p, int reg);
 static void p_restore_cursor(FILE *p, int reg);
@@ -55,7 +56,7 @@ void x2pmp(FILE *in, FILE *out,
 
     /* Read header from file */
     if (fread((char *)&header, sizeof(header), 1, in) != 1) {
-      if (feof(in)) 
+      if (feof(in))
 	return;
       else
 	leave("fread");
@@ -86,7 +87,7 @@ void x2pmp(FILE *in, FILE *out,
     one_plane_size = byte_width * height;
     buffer_size = one_plane_size *
       ((header.pixmap_format == ZPixmap)? header.pixmap_depth: 1);
-    
+
     /* Determine orientation and scale if not specified */
     if (orient == UNSPECIFIED)
       orient = (fixed_width <= height)? PORTRAIT: LANDSCAPE;
@@ -185,7 +186,7 @@ void x2pmp(FILE *in, FILE *out,
 	unsigned char *tbl = magnification_table(scale);
 	unsigned char *scale_buf;
 	int i, j, k;
-	
+
 	if ((scale_buf = (unsigned char *)
 	     calloc((unsigned) (buffer_size *= scale*scale), sizeof(char)))
 	    == NULL)
@@ -198,7 +199,7 @@ void x2pmp(FILE *in, FILE *out,
 		unsigned char *dst = ss+j*scale;
 		unsigned char *expansion = tbl+scale*src[j];
 		for(k = 0; k < scale; k++, dst += byte_width*scale) {
-		    bcopy((char *) expansion, (char *) dst, scale);
+		    memmove((char *) dst, (char *) expansion, scale);
 		}
 	    }
 	}
@@ -351,10 +352,10 @@ void p_bitmap(
     puthl2(h, p);
     puthl2(w, p);
     puthl3(buflen, p);
-    
+
     while(buflen) {
 	int len;
-	
+
 	len = min(buflen, MAX_VECTOR_LEN);
 	PMP(p, len);
 	(void) fwrite((char *) buf, 1, len, p);
diff --git a/app/xpr/xdpr.man b/app/xpr/xdpr.man
index 79a58444a..deaee2b19 100644
--- a/app/xpr/xdpr.man
+++ b/app/xpr/xdpr.man
@@ -25,9 +25,9 @@ xdpr \- dump an X window directly to a printer
 
 .SH DESCRIPTION
 .I Xdpr
-uses the commands 
+uses the commands
 .I xwd,
-.I xpr, 
+.I xpr,
 and
 .I lpr
 or
@@ -52,12 +52,11 @@ printed instead of selecting an X window.
 Specifies a printer to send the output to.  If a printer name is not
 specified here, \fIxdpr\fP (really, \fIlpr\fP or \fIlp\fP)
 will send your output to the
-printer specified by the \fIPRINTER\fP environment variable. 
+printer specified by the \fIPRINTER\fP environment variable.
 Be sure that type of the printer matches the type specified
 with the \fI\-device\fP option.
 .TP
 .B \-display \fIhost:display\fP[\fI.screen\fP]
-.cm .IB host : display
 Normally,
 .I xdpr
 gets the host and display number to use from the environment
@@ -73,9 +72,9 @@ Specifies the device on which the file will be printed.  Currently supported:
 Digital LA100
 .TP
 .B ljet
-\s-1HP\s+1 LaserJet series and other monochrome PCL devices
+HP LaserJet series and other monochrome PCL devices
 such as ThinkJet, QuietJet, RuggedWriter, \s-1HP\s+12560 series,
-and \s-1HP\s+12930 series printers
+and HP 2930 series printers
 .TP
 .B ln03
 Digital LN03
@@ -102,8 +101,8 @@ provided only for backwards compatibility.
 This option displays the list of options known to
 .I xdpr.
 .PP
-Any other arguments 
-will be passed to the 
+Any other arguments
+will be passed to the
 .I xwd,
 .I xpr,
 and
@@ -126,7 +125,7 @@ which display to use by default.
 PRINTER
 which printer to use by default.
 .SH COPYRIGHT
-Copyright ([\d,\s]*) X Consortium
+Copyright X Consortium
 .br
 See \fIX(1)\fP for a full statement of rights and permissions.
 .SH AUTHORS
diff --git a/app/xpr/xdpr.script b/app/xpr/xdpr.script
index 3ca4eb2aa..5c4ecf15b 100644
--- a/app/xpr/xdpr.script
+++ b/app/xpr/xdpr.script
@@ -108,7 +108,7 @@ while [ $1 ]; do
 			xprv="$xprv $1"
 		else
 			echo "xdpr: Invalid argument "$1""
-			echo $usage			
+			echo $usage
 			exit 1
 		fi
 	esac
@@ -149,7 +149,7 @@ if [ "$out" ]; then
 	exit 0
 fi
 
-# print only 
+# print only
 if [ "$infile" ]; then
 	if [ "$xwdv" ]; then
 		echo "xdpr: The following arguments will be ignored:"
@@ -161,6 +161,6 @@ fi
 
 # dump & print (default)
 xwd $xwdv | xpr -header "$header" -trailer "$trailer" $xprv | $LP $lprv
-exit 0	
+exit 0
 
 # EOF
diff --git a/app/xpr/xpr.c b/app/xpr/xpr.c
index 9f7f160be..b9cd707bc 100644
--- a/app/xpr/xpr.c
+++ b/app/xpr/xpr.c
@@ -40,10 +40,10 @@ from the X Consortium.
  * by using run-length encoding on white (1) pixels.
  * This version does not (yet) support the following options
  *   -append -dump -noff -nosixopt -split
- * 
+ *
  * Changes
  * Copyright 1986 by Marvin Solomon and the University of Wisconsin
- * 
+ *
  * Permission to use, copy, modify, and distribute this
  * software and its documentation for any purpose and without
  * fee is hereby granted, provided that the above copyright
@@ -57,7 +57,7 @@ from the X Consortium.
  * makes any representations about the suitability of
  * this software for any purpose.  It is provided "as is"
  * without express or implied warranty.
- * 
+ *
  * Modified by Bob Scheifler for 2x2 grayscale, then ...
  * Modified by Angela Bock and E. Mike Durbin, Rich Inc., to produce output
  * using 2x2, 3x3, or 4x4 grayscales. This version modifies the grayscale
@@ -77,6 +77,7 @@ from the X Consortium.
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
 #include <stdio.h>
+#include <string.h>
 #ifndef WIN32
 #include <pwd.h>
 #endif
@@ -131,8 +132,8 @@ int debug = 0;
 
 #define DEFAULT_CUTOFF ((unsigned int) (0xFFFF * 0.50))
 
-static char *infilename = NULL;
-char *progname   = NULL;
+static const char *infilename = NULL;
+const char *progname   = NULL;
 
 typedef struct _grayRec {
     int level;
@@ -170,7 +171,7 @@ char hex2[]="000000000000000088888888888888884444444444444444cccccccccccccccc\
 
 
 /* Local prototypes */
-static void usage(void);
+static void usage(void) _X_NORETURN;
 static
 void parse_args(
   int argc,
@@ -280,8 +281,8 @@ static void ps_output_bits(
   const char *data);
 static int ps_putbuf(
   register unsigned char *s,
-  register int n,	
-  register int ocount,	
+  register int n,
+  register int ocount,
   int compact);
 static void ps_bitrot(
   unsigned char *s,
@@ -292,8 +293,8 @@ static void ps_bitrot(
 static void fullread (
   int file,
   char *data,
-  int nbytes);  
-  
+  int nbytes);
+
 int main(int argc, char **argv)
 {
     unsigned long swaptest = 1;
@@ -319,16 +320,16 @@ int main(int argc, char **argv)
     enum orientation orientation;
     enum device device;
     XColor *colors = (XColor *)NULL;
-    
+
     if (!(progname = argv[0]))
       progname = "xpr";
 #ifdef	NLS
     nlmsg_fd = catopen("xpr", 0);
 #endif
-    parse_args (argc, argv, &scale, &width, &height, &left, &top, &device, 
+    parse_args (argc, argv, &scale, &width, &height, &left, &top, &device,
 		&flags, &split, &header, &trailer, &plane, &gray,
 		&density, &cutoff, &gamma, &render);
-    
+
     if (device == PP) {
 	x2pmp(stdin, stdout, scale,
 	      width >= 0? inch2pel((float)width/300.0): X_MAX_PELS,
@@ -369,7 +370,7 @@ int main(int argc, char **argv)
 
     w_name = malloc((unsigned)(win.header_size - sizeof win));
     fullread(0, w_name, (int) (win.header_size - sizeof win));
-    
+
     if(win.ncolors) {
 	XWDColor xwdcolor;
 	colors = (XColor *)malloc((unsigned) (win.ncolors * sizeof(XColor)));
@@ -436,7 +437,7 @@ int main(int argc, char **argv)
 /*	ln03_grind_fonts(sixmap, iw, ih, scale, &pixmap); */
 	ln03_setup(iw, ih, orientation, scale, left, top,
 		   &left_margin, &top_margin, flags, header, trailer);
-	ln03_output_sixels(sixmap, iw, ih, (flags & F_NOSIXOPT), split, 
+	ln03_output_sixels(sixmap, iw, ih, (flags & F_NOSIXOPT), split,
 			   scale, top_margin, left_margin);
 	ln03_finish();
     } else if (device == LA100) {
@@ -451,13 +452,13 @@ int main(int argc, char **argv)
     } else {
 	fprintf(stderr, "xpr: device not supported\n");
     }
-    
+
     /* print some statistics */
     if (flags & F_REPORT) {
 	fprintf(stderr, "Name: %s\n", w_name);
-	fprintf(stderr, "Width: %d, Height: %d\n", (int)win.pixmap_width, 
+	fprintf(stderr, "Width: %d, Height: %d\n", (int)win.pixmap_width,
 		(int)win.pixmap_height);
-	fprintf(stderr, "Orientation: %s, Scale: %d\n", 
+	fprintf(stderr, "Orientation: %s, Scale: %d\n",
 		(orientation==PORTRAIT) ? "Portrait" : "Landscape", scale);
     }
     if (((device == LN03) || (device == LA100)) && (flags & F_DUMP))
@@ -783,7 +784,7 @@ void parse_args(
 	    f = open(output_filename, O_WRONLY, 0);
 	}
 	if (f < 0) {
-	    fprintf(stderr, "xpr: error opening \"%s\" for output\n", 
+	    fprintf(stderr, "xpr: error opening \"%s\" for output\n",
 		    output_filename);
 	    perror("xpr");
 	    exit(1);
@@ -825,7 +826,7 @@ void setup_layout(
 
     /* check maximum width and height; set orientation and scale*/
     if (device == LN03 || device == PS) {
-	if ((win_width < win_height || (flags & F_PORTRAIT)) && 
+	if ((win_width < win_height || (flags & F_PORTRAIT)) &&
 	    !(flags & F_LANDSCAPE)) {
 	    *orientation = PORTRAIT;
 	    w_max = (width > 0)? width : W_MAX;
@@ -1156,7 +1157,7 @@ void ln03_setup(
     register int lm, tm, xm;
     char buf[256];
     register char *bp = buf;
-	
+
     if (!(flags & F_APPEND)) {
 	sprintf(bp, LN_STR); bp += 4;
 	sprintf(bp, LN_SSU, 7); bp += 5;
@@ -1183,7 +1184,7 @@ void ln03_setup(
 	xm = (((scale * iw) - (i * 30)) / 2) + lm;
 	sprintf(bp, LN_HPA, xm); bp += strlen(bp);
 	sprintf(bp, LN_SGR, 3); bp += strlen(bp);
-	bcopy(header, bp, i);
+	memmove(bp, header, i);
 	bp += i;
     }
     if (trailer != NULL) {
@@ -1192,7 +1193,7 @@ void ln03_setup(
 	xm = (((scale * iw) - (i * 30)) / 2) + lm;
 	sprintf(bp, LN_HPA, xm); bp += strlen(bp);
 	sprintf(bp, LN_SGR, 3); bp += strlen(bp);
-	bcopy(trailer, bp, i);
+	memmove(bp, trailer, i);
 	bp += i;
     }
 
@@ -1214,13 +1215,13 @@ void ln03_finish(void)
     sprintf(bp, LN_DECOPM_RESET); bp += sizeof LN_DECOPM_SET - 1;
     sprintf(bp, LN_LNM); bp += 5;
     sprintf(bp, LN_PUM); bp += 5;
-    sprintf(bp, LN_PFS, "?20"); bp += 7; 
-    sprintf(bp, LN_SGR, 0); bp += strlen(bp);   
+    sprintf(bp, LN_PFS, "?20"); bp += 7;
+    sprintf(bp, LN_SGR, 0); bp += strlen(bp);
     sprintf(bp, LN_HPA, 1); bp += strlen(bp);
     sprintf(bp, LN_VPA, 1); bp += strlen(bp);
 
 
-    write(1, buf, bp-buf);    
+    write(1, buf, bp-buf);
 }
 
 /*ARGSUSED*/
@@ -1348,7 +1349,7 @@ char *ps_prolog_compact[] = {
     NULL
 };
 
-static const 
+static const
 char *ps_prolog[] = {
     "%%Pages: 1",
     "%%EndProlog",
@@ -1740,7 +1741,7 @@ void ps_output_bits(
 
 	ibuf = (unsigned char *)malloc((unsigned)(iwb + 3));
 	for (i=0;i<ih;i++) {
-	    bcopy((char *)buffer, (char *)ibuf, iwb);
+	    memmove((char *)ibuf, (char *)buffer, iwb);
 	    buffer += iwb;
 	    if (!(*(char *) &swaptest))
 		_swaplong((char *)ibuf,(long)iwb);
@@ -1814,7 +1815,7 @@ void _invbits (
 		*b = ~*b;
 		b++;
 	    } while (--n > 0);
-	
+
 }
 
 /* copied from lib/X/XPutImage.c */
@@ -1827,7 +1828,7 @@ void _swapbits (
 		*b = _reverse_byte[*b];
 		b++;
 	    } while (--n > 0);
-	
+
 }
 
 void _swapshort (
@@ -1983,7 +1984,7 @@ void ps_bitrot(
     }
 }
 
-/* fullread() is the same as read(), except that it guarantees to 
+/* fullread() is the same as read(), except that it guarantees to
    read all the bytes requested. */
 
 static
diff --git a/app/xpr/xpr.h b/app/xpr/xpr.h
index d7c318296..a7d09c1d5 100644
--- a/app/xpr/xpr.h
+++ b/app/xpr/xpr.h
@@ -32,7 +32,7 @@ enum orientation {
 enum device {LN01, LN03, LA100, PS, PP, LJET, PJET, PJETXL};
 
 /* Global variables */
-extern char *progname;
+extern const char *progname;
 extern int debug;
 
 /* Global prototypes */
diff --git a/app/xpr/xpr.man b/app/xpr/xpr.man
index 63693e4bc..3129f085a 100644
--- a/app/xpr/xpr.man
+++ b/app/xpr/xpr.man
@@ -86,7 +86,7 @@ prints the largest possible representation of the window on the
 output page.  Options allow the user to add headers and trailers,
 specify margins, adjust the scale and orientation, and append
 multiple window dumps to a single output file.  Output is to
-standard output unless 
+standard output unless
 .B \-output
 is specified.
 .sp 1
@@ -131,7 +131,7 @@ Affects the size of the window on the page.  The PostScript, LN03, and HP
 printers are able to
 translate each bit in a window pixel map into a grid of a specified size.
 For example each bit might translate into a 3x3 grid.  This would be
-specified by \fB\-scale\fP \fI3\fP.  By default a window is printed 
+specified by \fB\-scale\fP \fI3\fP.  By default a window is printed
 with the largest scale that will fit onto the page for the specified
 orientation.
 .IP "\fB\-height\fP \fIinches\fP"
@@ -178,7 +178,7 @@ is to be appended.
 When specified in conjunction with \fB\-append\fP, the window will appear
 on the same page as the previous window.
 .IP "\fB\-split\fP \fIn\fP"
-This option allows the user to split a window onto several pages.  
+This option allows the user to split a window onto several pages.
 This might be necessary for very large windows that would otherwise
 cause the printer to overload and print the page in an obscure manner.
 .IP "\fB\-psfig\fP"
@@ -331,7 +331,7 @@ Copyright 1988, Hewlett Packard Company.
 .br
 See \fIX(1)\fP for a full statement of rights and permissions.
 .SH AUTHORS
-Michael R. Gretzinger, MIT Project Athena, 
+Michael R. Gretzinger, MIT Project Athena,
 Jose Capo, MIT Project Athena (PP3812 support),
 Marvin Solomon, University of Wisconsin,
 Bob Scheifler, MIT, Angela Bock and E. Mike Durbin, Rich Inc. (grayscale),