diff options
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/spice-compile-warnings.m4 | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/m4/spice-compile-warnings.m4 b/m4/spice-compile-warnings.m4 index 601ecf8c..959971a2 100644 --- a/m4/spice-compile-warnings.m4 +++ b/m4/spice-compile-warnings.m4 @@ -111,8 +111,12 @@ AC_DEFUN([SPICE_COMPILE_WARNINGS],[ gl_WARN_ADD([-Wframe-larger-than=20460]) # 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. */ +#if __OPTIMIZE__ +# define _FORTIFY_SOURCE 2 +#endif +]) # Extra special flags dnl -fstack-protector stuff passes gl_WARN_ADD with gcc |