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-rw-r--r--xorg-macros.m4.in29
1 files changed, 29 insertions, 0 deletions
diff --git a/xorg-macros.m4.in b/xorg-macros.m4.in
index 1954714..5c22332 100644
--- a/xorg-macros.m4.in
+++ b/xorg-macros.m4.in
@@ -456,3 +456,32 @@ fi
AC_SUBST(CWARNFLAGS)
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
]) # XORG_CWARNFLAGS
+
+# XORG_STRICT_OPTION
+# -----------------------
+# Minimum version: 1.3.0
+#
+# Add configure option to enable strict compilation
+AC_DEFUN([XORG_STRICT_OPTION], [
+AC_REQUIRE([AC_PROG_CC])
+AC_REQUIRE([AC_PROG_CC_C99])
+AC_REQUIRE([XORG_CWARNFLAGS])
+
+AC_ARG_ENABLE(strict-compilation,
+ AS_HELP_STRING([--enable-strict-compilation],
+ [Enable all warnings from compiler and make them errors (default: disabled)]),
+ [STRICT_COMPILE=$enableval], [STRICT_COMPILE=no])
+if test "x$STRICT_COMPILE" = "xyes"; then
+ AC_CHECK_DECL([__SUNPRO_C], [SUNCC="yes"], [SUNCC="no"])
+ AC_CHECK_DECL([__INTEL_COMPILER], [INTELCC="yes"], [INTELCC="no"])
+ if test "x$GCC" = xyes ; then
+ STRICT_CFLAGS="-pedantic -Werror"
+ elif test "x$SUNCC" = "xyes"; then
+ STRICT_CFLAGS="-errwarn"
+ elif test "x$INTELCC" = "xyes"; then
+ STRICT_CFLAGS="-Werror"
+ fi
+fi
+CWARNFLAGS="$CWARNFLAGS $STRICT_CFLAGS"
+AC_SUBST([CWARNFLAGS])
+]) # XORG_STRICT_OPTION