[PATCH] Btrfs-progs: -U_FORTIFY_SOURCE before -D

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My builds are cluttered with:
<command-line>:0:0: warning: "_FORTIFY_SOURCE" redefined [enabled by
default]

Which makes it hard to tell if something breaks or not.

Signed-off-by: Ian Kumlien <pomac@xxxxxxxxxx>
---

I don't know about you, but bilding with 
GCC 4.7.2 on gentoo, this is a issue.

 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index afd6cb2..ae3abdc 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 CC = gcc
-AM_CFLAGS = -Wall -D_FILE_OFFSET_BITS=64 -D_FORTIFY_SOURCE=2
+AM_CFLAGS = -Wall -D_FILE_OFFSET_BITS=64 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
 CFLAGS = -g -O1
 objects = ctree.o disk-io.o radix-tree.o extent-tree.o print-tree.o \
 	  root-tree.o dir-item.o file-item.o inode-item.o \
-- 
1.8.1.2

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