Improve portability for compilers without __has_attribute

1 files changed, 6 insertions, 0 deletions

diff --git a/include/fortify-headers.h b/include/fortify-headers.h
index 3dc33b7..a173466 100644
--- a/include/fortify-headers.h
+++ b/include/fortify-headers.h
@@ -79,6 +79,12 @@
 #define __fortify_warning_if(cond, msg)
 #endif
 
+#else /* ! __has_attribute */
+
+#define __fortify_access(...)
+#define __fortify__format(...)
+#define __fortify_warning_if(cond, msg)
+
 #endif
 
 #endif