- Merge: use png_sig_cmp to support libpng 1.4, old is deprecated already in older...

diff --git a/ext/gd/libgd/gd_png.c b/ext/gd/libgd/gd_png.c
index da5a32f682158e499bf44da58f557d94580e6637..52a087e787418461a1ceaba9a8150586ae148861 100644 (file)
--- a/ext/gd/libgd/gd_png.c
+++ b/ext/gd/libgd/gd_png.c
@@ -145,7 +145,7 @@ gdImagePtr gdImageCreateFromPngCtx (gdIOCtx * infile)
                return NULL;
        }
 
-       if (!png_check_sig (sig, 8)) { /* bad signature */
+       if (png_sig_cmp(sig, 0, 8) != 0) { /* bad signature */
                return NULL;
        }