From 7b9b7de17224999724b68777178cf7f45ea588e1 Mon Sep 17 00:00:00 2001
From: Tamas TEVESZ <ice@extreme.hu>
Date: Mon, 29 Mar 2010 11:30:47 +0200
Subject: [PATCH] Fix png 1.4+ builds

- png_check_sig was removed from png 1.4, use replacement fun, which is
  already present in 1.2.0 (cca. 2001)
---
 wrlib/load.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wrlib/load.c b/wrlib/load.c
index 2d577eee..e9cf06e0 100644
--- a/wrlib/load.c
+++ b/wrlib/load.c
@@ -330,7 +330,7 @@ static int identFile(char *path)
 
 #ifdef USE_PNG
 	/* check for PNG */
-	if (png_check_sig(buffer, 8))
+	if (!png_sig_cmp(buffer, 0, 8))
 		return IM_PNG;
 #endif