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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 NOTICE and LICENSE files 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


class RustBindgen(Package):
    """The rust programming language toolchain"""
    homepage = "http://www.rust-lang.org"
    url = "https://github.com/servo/rust-bindgen/archive/v0.20.5.tar.gz"

    version('0.20.5', '3e4d70a5bec540324fdd95bc9e82bebc')

    extends("rust")
    depends_on("llvm")

    def install(self, spec, prefix):
        env = dict(os.environ)
        env['LIBCLANG_PATH'] = os.path.join(spec['llvm'].prefix, 'lib')
        cargo('install', '--root', prefix, env=env)