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authorJune McEnroe <june@causal.agency>2026-06-01 14:39:52 -0400
committerJune McEnroe <june@causal.agency>2026-06-01 14:39:52 -0400
commit8de0a43b1db624a766efd3d78a60403e77ce39e0 (patch)
tree630a8490c3773b78d50582691dff4d9c60a607d4 /m4
parentImport LibreSSL 3.8.4 (diff)
downloadlibretls-8de0a43b1db624a766efd3d78a60403e77ce39e0.tar.gz
libretls-8de0a43b1db624a766efd3d78a60403e77ce39e0.zip
Import LibreSSL 3.9.0
Diffstat (limited to 'm4')
-rw-r--r--m4/check-hardening-options.m45
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