From ea9249fe5be7ab916093b152429bacdc3655b8b1 Mon Sep 17 00:00:00 2001
From: Glenn Randers-Pehrson <glennrp at users.sourceforge.net>
Date: Wed, 8 Jan 2014 12:05:00 -0600
Subject: [PATCH] [libpng15] Only warn about image too wide if warning was not
 already issued.

---
 png.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/png.c b/png.c
index 07da96dc7..1642b5eb5 100644
--- a/png.c
+++ b/png.c
@@ -658,13 +658,13 @@ png_get_copyright(png_const_structp png_ptr)
 #else
 #  ifdef __STDC__
    return PNG_STRING_NEWLINE \
-     "libpng version 1.5.18beta04 - January 1, 2014" PNG_STRING_NEWLINE \
+     "libpng version 1.5.18beta04 - January 8, 2014" PNG_STRING_NEWLINE \
      "Copyright (c) 1998-2014 Glenn Randers-Pehrson" PNG_STRING_NEWLINE \
      "Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
      "Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \
      PNG_STRING_NEWLINE;
 #  else
-      return "libpng version 1.5.18beta04 - January 1, 2014\
+      return "libpng version 1.5.18beta04 - January 8, 2014\
       Copyright (c) 1998-2014 Glenn Randers-Pehrson\
       Copyright (c) 1996-1997 Andreas Dilger\
       Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.";
@@ -1222,13 +1222,14 @@ png_check_IHDR(png_structp png_ptr,
       error = 1;
    }
 
-   if (width > (PNG_UINT_32_MAX
+   if (error == 0 && width > (PNG_UINT_32_MAX
                  >> 3)      /* 8-byte RGBA pixels */
                  - 48       /* bigrowbuf hack */
                  - 1        /* filter byte */
                  - 7*8      /* rounding of width to multiple of 8 pixels */
                  - 8)       /* extra max_pixel_depth pad */
-      png_warning(png_ptr, "Width is too large for libpng to process pixels");
+      png_warning(png_ptr,
+          "Width may be too large for libpng to process pixels");
 
    /* Check other values */
    if (bit_depth != 1 && bit_depth != 2 && bit_depth != 4 &&