From: Rich Felker <dalias@aerifal.cx>
Date: Wed, 10 Sep 2014 16:40:38 +0000 (-0400)
Subject: fix _ALL_SOURCE logic to avoid possible redefinition of _GNU_SOURCE
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;ds=sidebyside;h=f929493c49bbb304832b27e1e2b919aa19ddf470;p=musl

fix _ALL_SOURCE logic to avoid possible redefinition of _GNU_SOURCE

this could be an error if _GNU_SOURCE was already defined differently
by the application.
---

diff --git a/include/features.h b/include/features.h
index 294c61dd..61ad2f5b 100644
--- a/include/features.h
+++ b/include/features.h
@@ -1,7 +1,7 @@
 #ifndef _FEATURES_H
 #define _FEATURES_H
 
-#ifdef _ALL_SOURCE
+#if defined(_ALL_SOURCE) && !defined(_GNU_SOURCE)
 #define _GNU_SOURCE 1
 #endif