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-rw-r--r--configure.ac2
1 files changed, 1 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac
index d059e1c7..0692d5a8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -8,7 +8,7 @@ LIBBTRFS_MAJOR=0
LIBBTRFS_MINOR=1
LIBBTRFS_PATCHLEVEL=1
-CFLAGS=${CFLAGS:-"-g -O1 -Wall"}
+CFLAGS=${CFLAGS:-"-g -O1 -Wall -D_FORTIFY_SOURCE=2"}
AC_SUBST([CFLAGS])
AC_PREREQ([2.60])