Fixed typecast.

diff --git a/coders/png.c b/coders/png.c
index 7aa88c6971154f601c7e225a512cfa2ce867f7d0..8c89cb2061206c73c1ac12b512cee5793ed719fa 100644 (file)
--- a/coders/png.c
+++ b/coders/png.c
@@ -13122,7 +13122,7 @@ static MagickBooleanType WriteMNGImage(const ImageInfo *image_info,Image *image,
          if (need_defi && final_delay > 2 && (final_delay != 4) &&
             (final_delay != 5) && (final_delay != 10) && (final_delay != 20) &&
             (final_delay != 25) && (final_delay != 50) &&
-            (final_delay != (ssize_t) image->ticks_per_second))
+            (final_delay != (size_t) image->ticks_per_second))
            mng_info->need_fram=MagickTrue;  /* make it exact; cannot be VLC */
        }