From 7528c12ea495a781a62a0108e727a762e399f93f Mon Sep 17 00:00:00 2001
From: John Hawthorn <john.hawthorn@gmail.com>
Date: Tue, 2 Feb 2010 17:11:17 -0800
Subject: replace png_check_sig with png_sig_cmp. Fixes compilation with libpng
 1.4. Patch from fogobogo

---
 src/png.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/png.c b/src/png.c
index bab55e6..9dbe31e 100644
--- a/src/png.c
+++ b/src/png.c
@@ -17,7 +17,7 @@ static int ispng(FILE *f){
 	unsigned char buf[8];
 	if(fread(buf, 1, 8, f) != 8)
 		return 0;
-	return png_check_sig(buf, 8);
+	return !png_sig_cmp(buf, 1, 8);
 }
 
 struct image *png_open(FILE *f){
-- 
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