diff options
| author | Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> | 2013-01-11 10:03:04 -0500 |
|---|---|---|
| committer | Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> | 2013-01-11 10:03:16 -0500 |
| commit | 6a17986542912ed80d9fdc1b6eaa6d48fdd5d02d (patch) | |
| tree | f7a0d07cdecaec2dac9dbe46a6a2a0d5ba9464a0 /configure.ac | |
| parent | b37844d3d72af3afbcb801476cf07c085519f392 (diff) | |
build-sys: use _FORTIFY_SOURCE only if optimizing
Rather then force the user to undefine _FORTIFY_SOURCE,
don't define it in the first place if it cannot be used.
I'm assuming that -O* can only be sensibly specified in $CFLAGS.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/configure.ac b/configure.ac index 7a3cd87511..3566dac830 100644 --- a/configure.ac +++ b/configure.ac @@ -167,8 +167,10 @@ CC_CHECK_FLAGS_APPEND([with_cflags], [CFLAGS], [\ --param=ssp-buffer-size=4]) AC_SUBST([OUR_CFLAGS], $with_cflags) -CC_CHECK_FLAGS_APPEND([with_cppflags], [CPPFLAGS], [\ - -Wp,-D_FORTIFY_SOURCE=2]) +AS_CASE([$CFLAGS], [*-O[[12345\ ]]*], [ + CC_CHECK_FLAGS_APPEND([with_cppflags], [CPPFLAGS], [\ + -Wp,-D_FORTIFY_SOURCE=2])], [ + AC_MSG_RESULT([skipping -D_FORTIFY_SOURCE, optimization not enabled])]) AC_SUBST([OUR_CPPFLAGS], $with_cppflags) CC_CHECK_FLAGS_APPEND([with_ldflags], [LDFLAGS], [\ |