lib/defines: guard against a bad combination of CFLAGS

diff --git a/lib/defines.h b/lib/defines.h
index 84da059e3cbcdca87ab141f092265e53c62d1e6f..37750c59a15758e9d0e8e64a347ce0ffe3f2b852 100644 (file)
--- a/lib/defines.h
+++ b/lib/defines.h
@@ -99,4 +99,10 @@ void __asan_unpoison_memory_region(void const volatile *addr, size_t size);
 #define kr_asan_custom_poison(fn, addr)
 #define kr_asan_custom_unpoison(fn, addr)
 #endif
+
+#if defined(__SANITIZE_ADDRESS__) && defined(_FORTIFY_SOURCE)
+       #error "You can't use address sanitizer with _FORTIFY_SOURCE"
+       // https://github.com/google/sanitizers/issues/247
+#endif
+
 /* @endcond */