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| author | Allan McRae <allan@archlinux.org> | 2012-07-16 06:24:29 +0200 |
|---|---|---|
| committer | Dan McGee <dan@archlinux.org> | 2012-08-01 16:16:46 +0200 |
| commit | d2669b47812aebfe3ada7df4c7d7525790ef9c33 (patch) | |
| tree | ac0640af441883a043a468704895ea5cd7862755 /configure.ac | |
| parent | e94876089a934fde13984b59e735b35f92837d96 (diff) | |
| download | pacman-d2669b47812aebfe3ada7df4c7d7525790ef9c33.tar.gz pacman-d2669b47812aebfe3ada7df4c7d7525790ef9c33.tar.xz | |
Do not enable _FORTIFY_SOURCE without optimization
With glibc-2.16, using -D_FORTIFY_SOURCE requires that optimization (-O)
be used or it will prodice a warning message. Enable -Werror in our
test for _FORTIFY_SOURCE support to catch when a users specifies CFLAGS
without optimization.
The line to set CFLAGS="" when no CFLAGS are specified (either due to
being unset or geniunely empty) is required as autoconf will use
"-O2 -g" for its tests by defult when CFLAGS is unset, but will not add
them to the CFLAGS used...
Signed-off-by: Allan McRae <allan@archlinux.org>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 5483ee15..7fe696a9 100644 --- a/configure.ac +++ b/configure.ac @@ -66,6 +66,11 @@ LT_INIT LIB_VERSION=`expr lib_current - lib_age`.lib_age.lib_revision LIB_VERSION_INFO="lib_current:lib_revision:lib_age" +# Respect empty CFLAGS during compiler tests +if test "x$CFLAGS" != "x"; then + CFLAGS="" +fi + # Set subsitution values for version stuff in Makefiles and anywhere else, # and put LIB_VERSION in config.h AC_SUBST(LIB_VERSION) |