Fixes for the ImageMagick package. (#1709)

* add pango dependency

* add new package ghostscript-fonts & add to ImageMagick as dependency

also tell ImageMagick's configure where the font dir is!

* refactor to fix flake8

* add homepage to ghostscript-fonts

* use install_tree

* remove unneeded import

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

@@ -36,19 +36,22 @@ class Imagemagick(Package):
     version('7.0.2-6', 'aa5689129c39a5146a3212bf5f26d478')
 
     depends_on('jpeg')
+    depends_on('pango')
     depends_on('libtool', type='build')
     depends_on('libpng')
     depends_on('freetype')
     depends_on('fontconfig')
     depends_on('libtiff')
     depends_on('ghostscript')
+    depends_on('ghostscript-fonts')
 
     def url_for_version(self, version):
         return "https://github.com/ImageMagick/ImageMagick/archive/{0}.tar.gz".format(version)
 
     def install(self, spec, prefix):
-        configure('--prefix={0}'.format(prefix))
-
+        gs_font_dir = join_path(spec['ghostscript-fonts'].prefix.share, "font")
+        configure('--prefix={0}'.format(prefix),
+                  '--with-gs-font-dir={0}'.format(gs_font_dir))
         make()
         make('check')
         make('install')

var/spack/repos/builtin/packages/ghostscript-fonts/package.py

+##############################################################################
+# Copyright (c) 2013-2016, Lawrence Livermore National Security, LLC.
+# Produced at the Lawrence Livermore National Laboratory.
+#
+# This file is part of Spack.
+# Created by Todd Gamblin, tgamblin@llnl.gov, All rights reserved.
+# LLNL-CODE-647188
+#
+# For details, see https://github.com/llnl/spack
+# Please also see the LICENSE file for our notice and the LGPL.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License (as
+# published by the Free Software Foundation) version 2.1, February 1999.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY OF
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the terms and
+# conditions of the GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+##############################################################################
+from spack import *
+
+
+class GhostscriptFonts(Package):
+    """Ghostscript Fonts"""
+
+    homepage = "http://ghostscript.com/"
+    url = "ftp://ftp.imagemagick.org/pub/ImageMagick/delegates/ghostscript-fonts-std-8.11.tar.gz"
+
+    version('8.11', '6865682b095f8c4500c54b285ff05ef6')
+
+    def install(self, spec, prefix):
+        install_tree('.', join_path(prefix.share, 'font'))