From 04a803bef44e1929d3556c74c68e66b5124d7a3a Mon Sep 17 00:00:00 2001
From: Stefano Sabatini <stefano.sabatini-lala@poste.it>
Date: Sun, 12 Jul 2009 15:50:25 +0000
Subject: [PATCH] Append the user CPPFLAGS value to the CPPFLAGS used for
 compilation, rather than prepend it.

This way there is the guarantee that the included headers are those in
the FFmpeg sources, rather than pre-installed headers referenced by
the user CPPFLAGS.

Originally committed as revision 19416 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 common.mak | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common.mak b/common.mak
index 02c730338c7..9cc735786fd 100644
--- a/common.mak
+++ b/common.mak
@@ -18,7 +18,7 @@ endif
 
 ALLFFLIBS = avcodec avdevice avfilter avformat avutil postproc swscale
 
-CPPFLAGS += -DHAVE_AV_CONFIG_H -I$(BUILD_ROOT_REL) -I$(SRC_PATH)
+CPPFLAGS := -DHAVE_AV_CONFIG_H -I$(BUILD_ROOT_REL) -I$(SRC_PATH) $(CPPFLAGS)
 
 %.o: %.c
 	$(CC) $(CPPFLAGS) $(CFLAGS) $(LIBOBJFLAGS) -c $(CC_O) $<
-- 
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