From a91fd69df6734f971d2b2fd8a8a1913fb8cc3067 Mon Sep 17 00:00:00 2001
From: Matthieu Herrb <matthieu@cvs.openbsd.org>
Date: Sat, 7 Apr 2012 15:47:34 +0000
Subject: Update to xgamma 1.0.5

---
 app/xgamma/configure | 9720 +++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 9615 insertions(+), 105 deletions(-)

(limited to 'app/xgamma/configure')

diff --git a/app/xgamma/configure b/app/xgamma/configure
index 3035e0620..759382f67 100644
--- a/app/xgamma/configure
+++ b/app/xgamma/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.62 for xgamma 1.0.4.
+# Generated by GNU Autoconf 2.62 for xgamma 1.0.5.
 #
 # Report bugs to <https://bugs.freedesktop.org/enter_bug.cgi?product=xorg>.
 #
@@ -596,8 +596,8 @@ SHELL=${CONFIG_SHELL-/bin/sh}
 # Identity of this package.
 PACKAGE_NAME='xgamma'
 PACKAGE_TARNAME='xgamma'
-PACKAGE_VERSION='1.0.4'
-PACKAGE_STRING='xgamma 1.0.4'
+PACKAGE_VERSION='1.0.5'
+PACKAGE_STRING='xgamma 1.0.5'
 PACKAGE_BUGREPORT='https://bugs.freedesktop.org/enter_bug.cgi?product=xorg'
 
 ac_unique_file="Makefile.am"
@@ -717,7 +717,9 @@ am__fastdepCC_FALSE
 CPP
 GREP
 EGREP
+BASE_CFLAGS
 CWARNFLAGS
+STRICT_CFLAGS
 CHANGELOG_CMD
 PKG_CONFIG
 INSTALL_CMD
@@ -754,6 +756,7 @@ ac_user_opts='
 enable_option_checking
 enable_maintainer_mode
 enable_dependency_tracking
+enable_selective_werror
 enable_strict_compilation
 '
       ac_precious_vars='build_alias
@@ -1320,7 +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 xgamma 1.0.4 to adapt to many kinds of systems.
+\`configure' configures xgamma 1.0.5 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1390,7 +1393,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of xgamma 1.0.4:";;
+     short | recursive ) echo "Configuration of xgamma 1.0.5:";;
    esac
   cat <<\_ACEOF
 
@@ -1402,6 +1405,9 @@ 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)
@@ -1486,7 +1492,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-xgamma configure 1.0.4
+xgamma configure 1.0.5
 generated by GNU Autoconf 2.62
 
 Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
@@ -1500,7 +1506,7 @@ 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 xgamma $as_me 1.0.4, which was
+It was created by xgamma $as_me 1.0.5, which was
 generated by GNU Autoconf 2.62.  Invocation command line was
 
   $ $0 $@
@@ -2154,7 +2160,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='xgamma'
- VERSION='1.0.4'
+ VERSION='1.0.5'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -4266,6 +4272,188 @@ done
 
 
 
+
+
+{ $as_echo "$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
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+int
+main ()
+{
+#ifndef __clang__
+  (void) __clang__;
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$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.$ac_ext >&5
+
+	ac_cv_have_decl___clang__=no
+fi
+
+rm -f core conftest.err conftest.$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.  */
+$ac_includes_default
+int
+main ()
+{
+#ifndef __INTEL_COMPILER
+  (void) __INTEL_COMPILER;
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$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.$ac_ext >&5
+
+	ac_cv_have_decl___INTEL_COMPILER=no
+fi
+
+rm -f core conftest.err conftest.$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"
+fi
+
+{ $as_echo "$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.  */
+$ac_includes_default
+int
+main ()
+{
+#ifndef __SUNPRO_C
+  (void) __SUNPRO_C;
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$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___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 $ac_cv_have_decl___SUNPRO_C = yes; then
+  SUNCC="yes"
+else
+  SUNCC="no"
+fi
+
+
+
+
 if test "x$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.
@@ -4542,19 +4730,46 @@ $as_echo "$ac_cv_path_SED" >&6; }
 
 
 
-if  test "x$GCC" = xyes ; then
-    CWARNFLAGS="-Wall -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes \
--Wmissing-declarations -Wnested-externs -fno-strict-aliasing \
--Wbad-function-cast -Wformat=2"
-    case `$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
@@ -4563,17 +4778,7 @@ _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
-$ac_includes_default
-int
-main ()
-{
-#ifndef __SUNPRO_C
-  (void) __SUNPRO_C;
-#endif
-
-  ;
-  return 0;
-}
+int i;
 _ACEOF
 rm -f conftest.$ac_objext
 if { (ac_try="$ac_compile"
@@ -4593,46 +4798,30 @@ $as_echo "$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 $ac_cv_have_decl___SUNPRO_C = yes; then
-  SUNCC="yes"
-else
-  SUNCC="no"
-fi
-
-    if test "x$SUNCC" = "xyes"; then
-	CWARNFLAGS="-v"
-    fi
-fi
-
-
-
-# If the module's configure.ac calls AC_PROG_CC later on, CC gets set to C89
-
-
-
-# Check whether --enable-strict-compilation was given.
-if test "${enable_strict_compilation+set}" = set; then
-  enableval=$enable_strict_compilation; STRICT_COMPILE=$enableval
-else
-  STRICT_COMPILE=no
+{ $as_echo "$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$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 "${ac_cv_have_decl___SUNPRO_C+set}" = set; then
+if test "x$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
@@ -4641,17 +4830,7 @@ _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
-$ac_includes_default
-int
-main ()
-{
-#ifndef __SUNPRO_C
-  (void) __SUNPRO_C;
-#endif
-
-  ;
-  return 0;
-}
+int i;
 _ACEOF
 rm -f conftest.$ac_objext
 if { (ac_try="$ac_compile"
@@ -4671,28 +4850,9013 @@ $as_echo "$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_unused_command_line_argument=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_unused_command_line_argument=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"
+{ $as_echo "$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
 
-	{ $as_echo "$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
+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 ()
+{
+
+  ;
+  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 "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$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-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
+
+
+
+
+
+
+
+
+# Check whether --enable-strict-compilation was given.
+if test "${enable_strict_compilation+set}" = set; then
+  enableval=$enable_strict_compilation; STRICT_COMPILE=$enableval
+else
+  STRICT_COMPILE=no
+fi
+
+
+
+
+
+
+STRICT_CFLAGS=""
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$CFLAGS"
+
+if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
+	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
+	{ $as_echo "$as_me:$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 -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 ()
+{
+
+  ;
+  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 "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$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.  */
@@ -4700,18 +13864,234 @@ _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_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"
+
+		{ $as_echo "$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
+/* 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 -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 ()
 {
-#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="$STRICT_CFLAGS -errwarn"
+			found="yes"
+		fi
+	fi
+
+
+
+# Earlier versions of gcc (eg: 4.2) support -Werror=attributes, but do not
+# activate it with -Werror, so we add it here explicitly.
+
+
+
+
+
+
+
+
+
+
+
+
+
+xorg_testset_save_CFLAGS="$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
@@ -4730,33 +14110,162 @@ $as_echo "$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"
+{ $as_echo "$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
+  $as_echo_n "(cached) " >&6
 else
-  INTELCC="no"
+  cat >conftest.$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.$ac_ext >&5
+
+	xorg_cv_cc_flag_unused_command_line_argument=no
+fi
+
+rm -f core conftest.err conftest.$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=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
+  $as_echo "$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
 
-	if test "x$GCC" = xyes ; then
-		STRICT_CFLAGS="-pedantic -Werror"
-	elif test "x$SUNCC" = "xyes"; then
-		STRICT_CFLAGS="-errwarn"
-    elif test "x$INTELCC" = "xyes"; then
-		STRICT_CFLAGS="-Werror"
+
+		CFLAGS="$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 $STRICT_CFLAGS"
 fi
-CWARNFLAGS="$CWARNFLAGS $STRICT_CFLAGS"
+
+
 
 
 
@@ -5007,7 +14516,7 @@ $as_echo "yes" >&6; }
 	:
 fi
 
-ac_config_files="$ac_config_files Makefile"
+ac_config_files="$ac_config_files Makefile man/Makefile"
 
 cat >confcache <<\_ACEOF
 # This file is a shell script that caches the results of configure
@@ -5449,7 +14958,7 @@ 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 xgamma $as_me 1.0.4, which was
+This file was extended by xgamma $as_me 1.0.5, which was
 generated by GNU Autoconf 2.62.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -5502,7 +15011,7 @@ Report bugs to <bug-autoconf@gnu.org>."
 _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_version="\\
-xgamma config.status 1.0.4
+xgamma config.status 1.0.5
 configured by $0, generated by GNU Autoconf 2.62,
   with options \\"`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`\\"
 
@@ -5627,6 +15136,7 @@ do
     "config.h") CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;;
     "depfiles") CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;;
     "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
+    "man/Makefile") CONFIG_FILES="$CONFIG_FILES man/Makefile" ;;
 
   *) { { $as_echo "$as_me:$LINENO: error: invalid argument: $ac_config_target" >&5
 $as_echo "$as_me: error: invalid argument: $ac_config_target" >&2;}
-- 
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