diff options
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/libosinfo-compile-warnings.m4 | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/m4/libosinfo-compile-warnings.m4 b/m4/libosinfo-compile-warnings.m4 index 60152f0..508ff80 100644 --- a/m4/libosinfo-compile-warnings.m4 +++ b/m4/libosinfo-compile-warnings.m4 @@ -86,8 +86,13 @@ AC_DEFUN([LIBOSINFO_COMPILE_WARNINGS],[ gl_WARN_ADD([-Wframe-larger-than=4096]) # Use improved glibc headers - AC_DEFINE([_FORTIFY_SOURCE], [2], - [enable compile-time and run-time bounds-checking, and some warnings]) + AH_VERBATIM([FORTIFY_SOURCE], + [/* Enable compile-time and run-time bounds-checking, and some warnings, + without upsetting newer glibc. */ + #if defined __OPTIMIZE__ && __OPTIMIZE__ + # define _FORTIFY_SOURCE 2 + #endif + ]) # Extra special flags dnl -fstack-protector stuff passes gl_WARN_ADD with gcc |