freeimage: new package (#13049)

* freeimage: new package

* Address comments.

* Whitespace

var/spack/repos/builtin/packages/freeimage/install_fixes.patch

@@ -0,0 +1,15 @@
+--- a/Makefile.gnu	2015-03-10 09:04:00.000000000 +0100
++++ b/Makefile.gnu	2019-03-15 13:20:12.480698778 +0100
+@@ -71,9 +71,9 @@
+ 
+ install:
+ 	install -d $(INCDIR) $(INSTALLDIR)
+-	install -m 644 -o root -g root $(HEADER) $(INCDIR)
+-	install -m 644 -o root -g root $(STATICLIB) $(INSTALLDIR)
+-	install -m 755 -o root -g root $(SHAREDLIB) $(INSTALLDIR)
++	install -m 644 $(HEADER) $(INCDIR)
++	install -m 644 $(STATICLIB) $(INSTALLDIR)
++	install -m 755 $(SHAREDLIB) $(INSTALLDIR)
+ 	ln -sf $(SHAREDLIB) $(INSTALLDIR)/$(VERLIBNAME)
+ 	ln -sf $(VERLIBNAME) $(INSTALLDIR)/$(LIBNAME)	
+ #	ldconfig

var/spack/repos/builtin/packages/freeimage/package.py

@@ -0,0 +1,25 @@
+# Copyright 2013-2018 Lawrence Livermore National Security, LLC and other
+# Spack Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+from spack import *
+
+
+class Freeimage(MakefilePackage):
+    """FreeImage is an Open Source library project for developers who would like
+       to support popular graphics image formats like PNG, BMP, JPEG, TIFF and
+       others as needed by today's multimedia applications"""
+
+    homepage = "http://freeimage.sourceforge.net/"
+
+    version('3.18.0', 'f8ba138a3be233a3eed9c456e42e2578')
+
+    patch('install_fixes.patch', when='@3.18.0')
+
+    def edit(self, spec, prefix):
+        env["DESTDIR"] = prefix
+
+    def url_for_version(self, version):
+        url = "https://downloads.sourceforge.net/project/freeimage/Source%20Distribution/{0}/FreeImage{1}.zip"
+        return url.format(version, version.joined)