Index: lib/sanitizer_common/sanitizer_errno.h
===================================================================
--- lib/sanitizer_common/sanitizer_errno.h
+++ lib/sanitizer_common/sanitizer_errno.h
@@ -24,7 +24,7 @@
 
 #if SANITIZER_FREEBSD || SANITIZER_MAC
 #  define __errno_location __error
-#elif SANITIZER_ANDROID
+#elif SANITIZER_ANDROID || SANITIZER_NETBSD
 #  define __errno_location __errno
 #elif SANITIZER_WINDOWS
 #  define __errno_location _errno