Index: lib/sanitizer_common/sanitizer_platform_interceptors.h
===================================================================
--- lib/sanitizer_common/sanitizer_platform_interceptors.h
+++ lib/sanitizer_common/sanitizer_platform_interceptors.h
@@ -274,7 +274,9 @@
 #define SANITIZER_INTERCEPT_AEABI_MEM 0
 #endif
 #define SANITIZER_INTERCEPT___BZERO SI_MAC
-#define SANITIZER_INTERCEPT_BZERO SI_LINUX || SI_FREEBSD || SI_MAC
+// TODO(kuba.brecka): Add SI_MAC when strncpy on Darwin supports bzero
+// interceptors. https://reviews.llvm.org/D27659.
+#define SANITIZER_INTERCEPT_BZERO SI_LINUX || SI_FREEBSD
 #define SANITIZER_INTERCEPT_BCOPY SI_LINUX || SI_FREEBSD || SI_MAC
 #define SANITIZER_INTERCEPT_BCMP SI_LINUX || SI_FREEBSD || SI_MAC
 #define SANITIZER_INTERCEPT_FTIME !SI_FREEBSD && SI_NOT_WINDOWS