configure.ac: Add -fno-strict-aliasing to CFLAGS

This should force the server to have -fno-strict-aliasing even once it
is removed from the warning flags.

See: https://bugs.freedesktop.org/show_bug.cgi?id=31238Signed-off-by: Jeremy Huddleston Sequoia's avatarJeremy Huddleston <jeremyhu@apple.com>
Reviewed-by: Gaetan Nadon's avatarGaetan Nadon <memsize@videotron.ca>
parent a046d649
......@@ -87,6 +87,12 @@ XORG_PROG_RAWCPP
# easier overrides at build time.
XSERVER_CFLAGS='$(CWARNFLAGS)'
dnl Explicitly add -fno-strict-aliasing since this option should disappear
dnl from util-macros CWARNFLAGS
if test "x$GCC" = xyes ; then
XSERVER_CFLAGS="$XSERVER_CFLAGS -fno-strict-aliasing"
fi
dnl Check for dtrace program (needed to build Xserver dtrace probes)
dnl Also checks for <sys/sdt.h>, since some Linux distros have an
dnl ISDN trace program named dtrace
......
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