From eaa28204bdb8e1b4e461346c12109bcf8375b892 Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Sat, 9 Feb 2019 13:32:39 -0500
Subject: cmake: update FindPNG module #475

This pulls in a minor change from upstream cmake to support libpng
versions 1.6.  Fixes #475.
---
 cmake/modules/FindPNG.cmake | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'cmake')

diff --git a/cmake/modules/FindPNG.cmake b/cmake/modules/FindPNG.cmake
index e04a6c8..fd30029 100644
--- a/cmake/modules/FindPNG.cmake
+++ b/cmake/modules/FindPNG.cmake
@@ -56,7 +56,10 @@ if(ZLIB_FOUND)
   /usr/local/include/libpng             # OpenBSD
   )
 
-  set(PNG_NAMES ${PNG_NAMES} png libpng png15 libpng15 png15d libpng15d png14 libpng14 png14d libpng14d png12 libpng12 png12d libpng12d libpng_a)
+  list(APPEND PNG_NAMES png libpng)
+  foreach(v 16 15 14 12)
+    list(APPEND PNG_NAMES png${v} libpng${v} png${v}d libpng${v}d)
+  endforeach()
   find_library(PNG_LIBRARY NAMES ${PNG_NAMES} )
 
   if (PNG_LIBRARY AND PNG_PNG_INCLUDE_DIR)
-- 
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