--- OLD/git-compat-util.h	Thu Jan  1 00:00:00 1970
+++ NEW/git-compat-util.h	Thu Jan  1 00:00:00 1970
@@ -63,7 +63,7 @@
 #endif
 #define _ALL_SOURCE 1
 #define _GNU_SOURCE 1
-#define _BSD_SOURCE 1
+#define _DEFAULT_SOURCE 1
 #define _NETBSD_SOURCE 1
 #define _SGI_SOURCE 1