[syslinux] [PATCH 5/5] installers: fix a MinGW redefinition warning

[Pete Batard]

I get a redefinition warning on _GNU_SOURCE when compiling with MinGW, 
and while I could see that this #define was introduced in e4fc44 [1], 
but the reason to introduce it is not mentioned, and I can't really see 
a good reason to have it, especially as MSVC will happily compile that 
source. So far I have found no evidence that _GNU_SOURCE applies to 
memset/memmove/memcpy, which are the only calls I see in there that I 
could see impacted. Besides, for obvious compatibility reasons, I would 
advocate using -D_GNU_SOURCE as a compiler option if one really needs 
it, rather than have it in a source (which is what Syslinux already 
seems to do elsewhere).

[1] 
https://github.com/geneC/syslinux/commit/e4fc443f9b70f188963ff33e0a16ccb72a553540
-------------- next part --------------
From 6dc3ad338cf740bf81e2148a35222485904ac615 Mon Sep 17 00:00:00 2001
From: Pete Batard <pete at akeo.ie>
Date: Tue, 23 Feb 2016 20:03:36 +0000
Subject: [PATCH 5/5] installers: fix a MinGW redef warning

---
 libinstaller/setadv.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/libinstaller/setadv.c b/libinstaller/setadv.c
index 214f7fc..437583e 100644
--- a/libinstaller/setadv.c
+++ b/libinstaller/setadv.c
@@ -14,13 +14,12 @@
 /*
  * setadv.c
  *
- * (Over)write a data item in the auxilliary data vector.  To
+ * (Over)write a data item in the auxiliary data vector.  To
  * delete an item, set its length to zero.
  *
  * Return 0 on success, -1 on error, and set errno.
  *
  */
-#define  _GNU_SOURCE
 
 #include <stdio.h>
 #include <stdlib.h>
-- 
1.9.5.msysgit.1