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# Copyright 2013-2018 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 *
import os
class Flex(AutotoolsPackage):
"""Flex is a tool for generating scanners."""
homepage = "https://github.com/westes/flex"
url = "https://github.com/westes/flex/releases/download/v2.6.1/flex-2.6.1.tar.gz"
version('2.6.4', '2882e3179748cc9f9c23ec593d6adc8d')
# 2.6.4 fails to compile with gcc@7.2:
# see https://github.com/spack/spack/issues/8152 and
# https://github.com/spack/spack/issues/6942
version('2.6.3', 'a5f65570cd9107ec8a8ec88f17b31bb1', preferred=True)
# Avoid flex '2.6.2' (major bug)
# See issue #2554; https://github.com/westes/flex/issues/113
version('2.6.1', '05bcd8fb629e0ae130311e8a6106fa82')
version('2.6.0', '760be2ee9433e822b6eb65318311c19d')
version('2.5.39', '5865e76ac69c05699f476515592750d7')
variant('lex', default=True,
description="Provide symlinks for lex and libl")
depends_on('bison', type='build')
depends_on('gettext@0.19:', type='build')
depends_on('help2man', type='build')
# Older tarballs don't come with a configure script
depends_on('m4', type='build')
depends_on('autoconf', type='build', when='@:2.6.0')
depends_on('automake', type='build', when='@:2.6.0')
depends_on('libtool', type='build', when='@:2.6.0')
# Build issue for v2.6.4 when gcc@7.2.0: is used
# See issue #219; https://github.com/westes/flex/issues/219
conflicts('%gcc@7.2.0:', when='@2.6.4')
def url_for_version(self, version):
url = "https://github.com/westes/flex"
if version >= Version('2.6.1'):
url += "/releases/download/v{0}/flex-{0}.tar.gz".format(version)
elif version == Version('2.6.0'):
url += "/archive/v{0}.tar.gz".format(version)
elif version >= Version('2.5.37'):
url += "/archive/flex-{0}.tar.gz".format(version)
else:
url += "/archive/flex-{0}.tar.gz".format(version.dashed)
return url
@run_after('install')
def symlink_lex(self):
"""Install symlinks for lex compatibility."""
if self.spec.satisfies('+lex'):
dso = dso_suffix
for dir, flex, lex in \
((self.prefix.bin, 'flex', 'lex'),
(self.prefix.lib, 'libfl.a', 'libl.a'),
(self.prefix.lib, 'libfl.' + dso, 'libl.' + dso),
(self.prefix.lib64, 'libfl.a', 'libl.a'),
(self.prefix.lib64, 'libfl.' + dso, 'libl.' + dso)):
if os.path.isdir(dir):
with working_dir(dir):
if (os.path.isfile(flex) and not os.path.lexists(lex)):
symlink(flex, lex)
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