1 files changed, 5 insertions, 0 deletions

diff --git a/m4/check-hardening-options.m4 b/m4/check-hardening-options.m4
index 4b5784b..2cb3083 100644
--- a/m4/check-hardening-options.m4
+++ b/m4/check-hardening-options.m4
@@ -94,6 +94,11 @@ AC_DEFUN([CHECK_C_HARDENING_OPTIONS], [
                                 AC_SEARCH_LIBS([__stack_chk_guard],[ssp])
                         ])
                 ])
+
+                # Check for control-flow integrity support
+                AS_IF([test "x$HOST_OS" != "xdarwin"], [
+                        CHECK_CFLAG([[-fcf-protection=full]])
+                ])
         ])
 
         # Restore CC, LD