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# Copyright 2013-2019 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 Libunwind(AutotoolsPackage):
"""A portable and efficient C programming interface (API) to determine
the call-chain of a program."""
homepage = "http://www.nongnu.org/libunwind/"
url = "http://download.savannah.gnu.org/releases/libunwind/libunwind-1.1.tar.gz"
git = "https://github.com/libunwind/libunwind"
version('develop', branch='master')
version('2018.10.12', commit='f551e16213c52169af8bda554e4051b756a169cc')
version('1.3-rc1', 'f09b670de5db6430a3de666e6aed60e3')
version('1.2.1', '06ba9e60d92fd6f55cd9dadb084df19e', preferred=True)
version('1.1', 'fb4ea2f6fbbe45bf032cd36e586883ce')
variant('xz', default=False,
description='Support xz (lzma) compressed symbol tables.')
# The libunwind releases contain the autotools generated files,
# but the git repo snapshots do not.
depends_on('autoconf', type='build', when='@2018:')
depends_on('automake', type='build', when='@2018:')
depends_on('libtool', type='build', when='@2018:')
depends_on('m4', type='build', when='@2018:')
depends_on('xz', type='link', when='+xz')
conflicts('platform=darwin',
msg='Non-GNU libunwind needs ELF libraries Darwin does not have')
provides('unwind')
flag_handler = AutotoolsPackage.build_system_flags
def configure_args(self):
spec = self.spec
args = []
if '+xz' in spec:
args.append('--enable-minidebuginfo')
else:
args.append('--disable-minidebuginfo')
return args
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