diff options
| -rw-r--r-- | configure.in | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/configure.in b/configure.in index 857ac63a49..ba353d9c76 100644 --- a/configure.in +++ b/configure.in @@ -404,6 +404,13 @@ else CFLAGS="-D_U_=\"\" $CFLAGS" fi +# If we're running GCC or CLang, always use FORTIFY_SOURCE=2 +# See: http://gcc.gnu.org/ml/gcc-patches/2004-09/msg02055.html +# Note: FORTIFY_SOURCE is only effective for gcc -O2 (and -O1 ?) +if test "x$GCC" = "xyes" -o "x$CC" = "xclang" ; then + CFLAGS="-D_FORTIFY_SOURCE=2 $CFLAGS" +fi + # # If the compiler supports GCC-style flags, enable a barrier "stop on # warning". |