1 files changed, 2 insertions, 1 deletions

diff --git a/include/strings.h b/include/strings.h
index 530572a..8b99ccd 100644
--- a/include/strings.h
+++ b/include/strings.h
@@ -33,7 +33,6 @@ extern "C" {
 #undef bzero
 __access(write_only, 2, 3)
 __access(read_only, 1, 3)
-__diagnose_as_builtin(__builtin_bcopy, 1, 2, 3)
 _FORTIFY_FN(bcopy) void bcopy(const void * _FORTIFY_POS0 __s,
                               void * _FORTIFY_POS0 __d, size_t __n)
 {
@@ -46,7 +45,9 @@ _FORTIFY_FN(bcopy) void bcopy(const void * _FORTIFY_POS0 __s,
 }
 
 __access(write_only, 1, 2)
+#if __has_builtin(__builtin_bzero)
 __diagnose_as_builtin(__builtin_bzero, 1, 2)
+#endif
 _FORTIFY_FN(bzero) void bzero(void * _FORTIFY_POS0 __s, size_t __n)
 {
         size_t __b = __bos(__s, 0);