From 457f2d1d51b2bf008f837bf3ce8ee3cb47d5ba6b Mon Sep 17 00:00:00 2001
From: Todd Gamblin <tgamblin@llnl.gov>
Date: Fri, 6 Feb 2015 08:37:22 -0800
Subject: Fix libpng to use a better URL

Sourceforge URLs like this eventually die when the libpng version is bumped:
    http://sourceforge.net/projects/libpng/files/libpng16/1.6.14/libpng-1.6.14.tar.gz/download

But ones like this give you a "permanently moved", which curl -L will follow:
    http://download.sourceforge.net/libpng/libpng-1.6.16.tar.gz
---
 var/spack/packages/libpng/package.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/var/spack/packages/libpng/package.py b/var/spack/packages/libpng/package.py
index a6d9bf0b46..c148a3d58c 100644
--- a/var/spack/packages/libpng/package.py
+++ b/var/spack/packages/libpng/package.py
@@ -3,12 +3,13 @@ from spack import *
 class Libpng(Package):
     """libpng graphics file format"""
     homepage = "http://www.libpng.org/pub/png/libpng.html"
-    url      = "http://sourceforge.net/projects/libpng/files/libpng16/1.6.14/libpng-1.6.14.tar.gz/download"
+    url      = "http://download.sourceforge.net/libpng/libpng-1.6.16.tar.gz"
 
     version('1.6.14', '2101b3de1d5f348925990f9aa8405660')
+    version('1.6.15', '829a256f3de9307731d4f52dc071916d')
+    version('1.6.16', '1a4ad377919ab15b54f6cb6a3ae2622d')
 
     def install(self, spec, prefix):
         configure("--prefix=%s" % prefix)
-
         make()
         make("install")
-- 
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