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##############################################################################
# Copyright (c) 2013-2017, 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/spack/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 Groff(AutotoolsPackage):
    """Groff (GNU troff) is a typesetting system that reads
    plain text mixed with formatting commands and produces
    formatted output. Output may be PostScript or PDF, html, or
    ASCII/UTF8 for display at the terminal."""

    homepage = "https://www.gnu.org/software/groff/"
    url      = "http://ftp.gnu.org/gnu/groff/groff-1.22.3.tar.gz"

    # TODO: add html variant, spack doesn't have netpbm and its too
    # complicated for me to find out at this point in time.
    # See brew scripts for groff for guidance:
    # https://github.com/Homebrew/homebrew-core/blob/master/Formula/groff.rb
    # Seems troublesome...netpbm requires groff?
    variant('pdf', default=True, description='Build the `gropdf` executable.')

    depends_on('gawk',  type='build')
    depends_on('gmake', type='build')
    depends_on('sed',   type='build')
    depends_on('ghostscript', when='+pdf')

    version('1.22.3', 'cc825fa64bc7306a885f2fb2268d3ec5')

    # https://savannah.gnu.org/bugs/index.php?43581
    # TODO: figure out why this patch does not actually work for parallel
    # builds reliably.
    # patch('gropdf.patch')
    parallel = False

    def configure_args(self):
        args = [
            "--without-x"
        ]
        return args