explicit_bzero test: don't redefine __SANITIZE_ADDRESS__

Silences an annoying warning when running tests with ASAN.

1 files changed, 3 insertions, 1 deletions

diff --git a/src/regress/lib/libc/explicit_bzero/explicit_bzero.c b/src/regress/lib/libc/explicit_bzero/explicit_bzero.c
index 496bafb208..30c86290e8 100644
--- a/src/regress/lib/libc/explicit_bzero/explicit_bzero.c
+++ b/src/regress/lib/libc/explicit_bzero/explicit_bzero.c
@@ -1,4 +1,4 @@
-/*      $OpenBSD: explicit_bzero.c,v 1.9 2022/02/10 08:39:32 tb Exp $   */
+/*      $OpenBSD: explicit_bzero.c,v 1.10 2025/05/31 15:31:40 tb Exp $  */
 /*
  * Copyright (c) 2014 Google Inc.
  *
@@ -28,9 +28,11 @@
 
 #if defined(__has_feature)
 #if __has_feature(address_sanitizer)
+#ifndef __SANITIZE_ADDRESS__
 #define __SANITIZE_ADDRESS__
 #endif
 #endif
+#endif
 #ifdef __SANITIZE_ADDRESS__
 #define ATTRIBUTE_NO_SANITIZE_ADDRESS __attribute__((no_sanitize_address))
 #else