--- files/patch-loader_png.c.orig	2010-03-29 14:22:41.000000000 +0200
+++ files/patch-loader_png.c	2010-03-29 21:36:48.000000000 +0200
@@ -5,7 +5,7 @@
          /* if we haven't read the header before, set the header data */
          fread(buf, 1, PNG_BYTES_TO_CHECK, f);
 -        if (!png_check_sig(buf, PNG_BYTES_TO_CHECK))
-+        if (png_check_sig(buf, 0, PNG_BYTES_TO_CHECK) != 0)
++        if (png_sig_cmp(buf, 0, PNG_BYTES_TO_CHECK))
            {
               fclose(f);
               return 0;