diff --git a/var/spack/repos/builtin/packages/ncl/package.py b/var/spack/repos/builtin/packages/ncl/package.py
new file mode 100644
index 0000000000000000000000000000000000000000..7d31c7a8f77cc95d2f3f431a89e99ccdc112717a
--- /dev/null
+++ b/var/spack/repos/builtin/packages/ncl/package.py
@@ -0,0 +1,233 @@
+##############################################################################
+# 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 *
+import os
+import shutil
+import tempfile
+
+
+class Ncl(Package):
+ """NCL is an interpreted language designed specifically for
+ scientific data analysis and visualization. Supports NetCDF 3/4,
+ GRIB 1/2, HDF 4/5, HDF-EOD 2/5, shapefile, ASCII, binary.
+ Numerous analysis functions are built-in."""
+
+ homepage = "https://www.ncl.ucar.edu"
+
+ version('6.3.0', '4834df63d3b56778441246303ab921c4',
+ url='https://www.earthsystemgrid.org/download/fileDownload.html?'
+ 'logicalFileId=bec58cb3-cd9b-11e4-bb80-00c0f03d5b7c',
+ extension='tar.gz')
+ patch('spack_ncl.patch')
+
+ # This installation script is implemented according to this manual:
+ # http://www.ncl.ucar.edu/Download/build_from_src.shtml
+
+ variant('hdf4', default=False, description='Enable HDF4 support.')
+ variant('gdal', default=False, description='Enable GDAL support.')
+ variant('triangle', default=True, description='Enable Triangle support.')
+ variant('udunits2', default=True, description='Enable UDUNITS-2 support.')
+ variant('openmp', default=True, description='Enable OpenMP support.')
+
+ # Non-optional dependencies according to the manual:
+ depends_on('jpeg')
+ depends_on('netcdf')
+ depends_on('cairo')
+
+ # Also, the manual says that ncl requires zlib, but that comes as a
+ # mandatory dependency of libpng, which is a mandatory dependency of cairo.
+
+ # In Spack, we do not have an option to compile netcdf without netcdf-4
+ # support, so we will tell the ncl configuration script that we want
+ # support for netcdf-4, but the script assumes that hdf5 is compiled with
+ # szip support. We introduce this restriction with the following dependency
+ # statement.
+ depends_on('hdf5@:1.8+szip')
+
+ # In Spack, we also do not have an option to compile netcdf without DAP
+ # support, so we will tell the ncl configuration script that we have it.
+
+ # Some of the optional dependencies according to the manual:
+ depends_on('hdf', when='+hdf4')
+ depends_on('gdal', when='+gdal')
+ depends_on('udunits2', when='+udunits2')
+
+ # We need src files of triangle to appear in ncl's src tree if we want
+ # triangle's features.
+ resource(
+ name='triangle',
+ url='http://www.netlib.org/voronoi/triangle.zip',
+ md5='10aff8d7950f5e0e2fb6dd2e340be2c9',
+ placement='triangle_src',
+ when='+triangle')
+
+ def install(self, spec, prefix):
+
+ if (self.compiler.fc is None) or (self.compiler.cc is None):
+ raise InstallError('NCL package requires both '
+ 'C and Fortran compilers.')
+
+ self.prepare_site_config()
+ self.prepare_install_config()
+ self.prepare_src_tree()
+ make('Everything', parallel=False)
+
+ def setup_environment(self, spack_env, run_env):
+ run_env.set('NCARG_ROOT', self.spec.prefix)
+
+ def prepare_site_config(self):
+ fc_flags = []
+ cc_flags = []
+ c2f_flags = []
+
+ if '+openmp' in self.spec:
+ fc_flags.append(self.compiler.openmp_flag)
+ cc_flags.append(self.compiler.openmp_flag)
+
+ if self.compiler.name == 'gcc':
+ fc_flags.append('-fno-range-check')
+ c2f_flags.extend(['-lgfortran'])
+ elif self.compiler.name == 'intel':
+ fc_flags.append('-fp-model precise')
+ cc_flags.append('-fp-model precise')
+ c2f_flags.extend(['-lifcore', '-lifport'])
+
+ with open('./config/Spack', 'w') as f:
+ f.writelines([
+ '#define HdfDefines\n',
+ '#define CppCommand \'/usr/bin/env cpp -traditional\'\n',
+ '#define CCompiler cc\n',
+ '#define FCompiler fc\n',
+ ('#define CtoFLibraries ' + ' '.join(c2f_flags) + '\n'
+ if len(c2f_flags) > 0
+ else ''),
+ ('#define CtoFLibrariesUser ' + ' '.join(c2f_flags) + '\n'
+ if len(c2f_flags) > 0
+ else ''),
+ ('#define CcOptions ' + ' '.join(cc_flags) + '\n'
+ if len(cc_flags) > 0
+ else ''),
+ ('#define FcOptions ' + ' '.join(fc_flags) + '\n'
+ if len(fc_flags) > 0
+ else ''),
+ '#define BuildShared NO'
+ ])
+
+ def prepare_install_config(self):
+ # Remove the results of the previous configuration attempts.
+ self.delete_files('./Makefile', './config/Site.local')
+
+ # Generate an array of answers that will be passed to the interactive
+ # configuration script.
+ config_answers = [
+ # Enter Return to continue
+ '\n',
+ # Build NCL?
+ 'y\n',
+ # Parent installation directory :
+ '\'' + self.spec.prefix + '\'\n',
+ # System temp space directory :
+ '\'' + tempfile.mkdtemp(prefix='ncl_ncar_') + '\'\n',
+ # Build NetCDF4 feature support (optional)?
+ 'y\n'
+ ]
+
+ if '+hdf4' in self.spec:
+ config_answers.extend([
+ # Build HDF4 support (optional) into NCL?
+ 'y\n',
+ # Also build HDF4 support (optional) into raster library?
+ 'y\n',
+ # Did you build HDF4 with szip support?
+ 'y\n' if self.spec.satisfies('^hdf+szip') else 'n\n'
+ ])
+ else:
+ config_answers.extend([
+ # Build HDF4 support (optional) into NCL?
+ 'n\n',
+ # Also build HDF4 support (optional) into raster library?
+ 'n\n'
+ ])
+
+ config_answers.extend([
+ # Build Triangle support (optional) into NCL
+ 'y\n' if '+triangle' in self.spec else 'n\n',
+ # If you are using NetCDF V4.x, did you enable NetCDF-4 support?
+ 'y\n',
+ # Did you build NetCDF with OPeNDAP support?
+ 'y\n',
+ # Build GDAL support (optional) into NCL?
+ 'y\n' if '+gdal' in self.spec else 'n\n',
+ # Build Udunits-2 support (optional) into NCL?
+ 'y\n' if '+uduints2' in self.spec else 'n\n',
+ # Build Vis5d+ support (optional) into NCL?
+ 'n\n',
+ # Build HDF-EOS2 support (optional) into NCL?
+ 'n\n',
+ # Build HDF5 support (optional) into NCL?
+ 'y\n',
+ # Build HDF-EOS5 support (optional) into NCL?
+ 'n\n',
+ # Build GRIB2 support (optional) into NCL?
+ 'n\n',
+ # Enter local library search path(s) :
+ # The paths will be passed by the Spack wrapper.
+ ' \n',
+ # Enter local include search path(s) :
+ # All other paths will be passed by the Spack wrapper.
+ '\'' + join_path(self.spec['freetype'].prefix.include,
+ 'freetype2') + '\'\n',
+ # Go back and make more changes or review?
+ 'n\n',
+ # Save current configuration?
+ 'y\n'
+ ])
+
+ config_answers_filename = 'spack-config.in'
+ config_script = Executable('./Configure')
+
+ with open(config_answers_filename, 'w') as f:
+ f.writelines(config_answers)
+
+ with open(config_answers_filename, 'r') as f:
+ config_script(input=f)
+
+ def prepare_src_tree(self):
+ if '+triangle' in self.spec:
+ triangle_src = join_path(self.stage.source_path, 'triangle_src')
+ triangle_dst = join_path(self.stage.source_path, 'ni', 'src',
+ 'lib', 'hlu')
+ shutil.copy(join_path(triangle_src, 'triangle.h'), triangle_dst)
+ shutil.copy(join_path(triangle_src, 'triangle.c'), triangle_dst)
+
+ @staticmethod
+ def delete_files(*filenames):
+ for filename in filenames:
+ if os.path.exists(filename):
+ try:
+ os.remove(filename)
+ except OSError, e:
+ raise InstallError('Failed to delete file %s: %s' % (
+ e.filename, e.strerror))
diff --git a/var/spack/repos/builtin/packages/ncl/spack_ncl.patch b/var/spack/repos/builtin/packages/ncl/spack_ncl.patch
new file mode 100644
index 0000000000000000000000000000000000000000..ebbecc43ba8c1cf1894c2f5c406174f08f7b19b4
--- /dev/null
+++ b/var/spack/repos/builtin/packages/ncl/spack_ncl.patch
@@ -0,0 +1,30 @@
+--- a/config/ymake 2015-03-16 22:21:42.000000000 +0100
++++ b/config/ymake 2016-10-14 13:44:49.530646098 +0200
+@@ -537,0 +538,3 @@
++# We want to have our own definitions for spack
++set sysincs = Spack
++
+--- a/Configure 2015-03-16 22:22:17.000000000 +0100
++++ b/Configure 2016-10-14 13:49:42.157631106 +0200
+@@ -1137,5 +1137,13 @@
+- if (! -d $incs[1]) then
+- echo " *** Warning: <$incs[1]> does not exist"
+- echo ""
+- goto proc_locincdir
+- else
++
++ # We don't want our path(s) to be preprocessed by cpp
++ # inside ymake script. That is why we pass them in quotes (')
++ # to this script. But if we do so, the following condition
++ # is always false. That is why we comment it out and promise
++ # to pass only correct path(s). You might want to do the same
++ # thing for the libraries search path(s).
++
++ # if (! -d $incs[1]) then
++ # echo " *** Warning: <$incs[1]> does not exist"
++ # echo ""
++ # goto proc_locincdir
++ # else
+@@ -1143 +1151 @@
+- endif
++ # endif