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| author | Adam Jackson <ajax@redhat.com> | 2016-05-18 11:52:27 -0400 |
|---|---|---|
| committer | Adam Jackson <ajax@redhat.com> | 2016-06-08 14:03:36 -0400 |
| commit | 7557fe152d9948bcb4b805bb7b6b6f8121bd34fb (patch) | |
| tree | 154f38c1d1cb83bbfd019bae7508a9817ca23863 /configure.ac | |
| parent | 6972ea08ee5b2ef1cfbdc2fcaf14f06bbd391561 (diff) | |
configure: Use -fvisibility=hidden if available
text data bss dec hex filename
233732 8168 1616 243516 3b73c .libs/libXfont2.so.2.before
217113 6816 1616 225545 37109 .libs/libXfont2.so.2.after
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 13c8c97..062f75d 100644 --- a/configure.ac +++ b/configure.ac @@ -217,6 +217,23 @@ case $host_os in OS_CFLAGS= ;; esac + +save_CFLAGS="$CFLAGS" +CFLAGS="$CFLAGS -fvisibility=hidden" +CFLAGS_VISIBILITY= +AC_COMPILE_IFELSE( + [AC_LANG_SOURCE([[ + #if defined(__CYGWIN__) || defined(__MINGW32__) + #error No visibility support + #endif + extern __attribute__((__visibility__("default"))) int x; + ]])], + [CFLAGS_VISIBILITY=-fvisibility=hidden], + [] +) +CFLAGS="$save_CFLAGS" +OS_CFLAGS="$OS_CFLAGS $CFLAGS_VISIBILITY" + AC_SUBST([OS_CFLAGS]) AC_CONFIG_FILES([Makefile |