From d4ac328617d9f5c01dee723018370e23e4318adb Mon Sep 17 00:00:00 2001
From: Glenn Randers-Pehrson <glennrp at users.sourceforge.net>
Date: Fri, 9 Jan 2015 13:10:14 -0600
Subject: [PATCH] [libpng17] Quiet a GCC compiler warning about sample_max in
 pngset.c

---
 pngset.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pngset.c b/pngset.c
index 668a25c06..60f53beb5 100644
--- a/pngset.c
+++ b/pngset.c
@@ -989,7 +989,7 @@ png_set_tRNS(png_structrp png_ptr, png_inforp info_ptr,
 
       if (trans_color != NULL && info_ptr->bit_depth < 16)
       {
-         png_uint_16 sample_max = (1 << info_ptr->bit_depth) - 1;
+         unsigned int sample_max = (1U << info_ptr->bit_depth) - 1U;
 
          if ((info_ptr->color_type == PNG_COLOR_TYPE_GRAY &&
              trans_color->gray <= sample_max) ||