1 files changed, 4 insertions, 0 deletions

diff --git a/configure.ac b/configure.ac
index 2762c2ef0..73bd334f8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -30,6 +30,10 @@ AX_CHECK_COMPILE_FLAG([-MMD -MP], [
         DEPS_CFLAGS="$DEPS_CFLAGS -MMD -MP"
 ])
 
+AX_CHECK_COMPILE_FLAG([-D_FORTIFY_SOURCE=2], [
+        EXTRA_CFLAGS="$EXTRA_CFLAGS -D_FORTIFY_SOURCE=2"
+], [], [$CFLAGS $CPPFLAGS -Werror])
+
 HAVE_SPECTRE="no"
 AX_CHECK_COMPILE_FLAG([-mindirect-branch=thunk], [
         HAVE_SPECTRE="yes"