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# Copyright 2013-2022 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 Re2(CMakePackage):
"""RE2 is a fast, safe, thread-friendly alternative to backtracking
regular expression engines like those used in PCRE, Perl, and Python."""
homepage = "https://github.com/google/re2"
url = "https://github.com/google/re2/archive/2020-08-01.tar.gz"
version('2021-06-01', sha256='26155e050b10b5969e986dab35654247a3b1b295e0532880b5a9c13c0a700ceb')
version('2020-08-01', sha256='6f4c8514249cd65b9e85d3e6f4c35595809a63ad71c5d93083e4d1dcdf9e0cd6')
version('2020-04-01', sha256='98794bc5416326817498384a9c43cbb5a406bab8da9f84f83c39ecad43ed5cea')
variant('shared', default=False,
description='Build shared instead of static libraries')
variant('pic', default=True,
description='Enable position independent code')
# shared libs must have position-independent code
conflicts('+shared ~pic')
def cmake_args(self):
args = [
self.define_from_variant('BUILD_SHARED_LIBS', 'shared'),
self.define_from_variant('CMAKE_POSITION_INDEPENDENT_CODE', 'pic')
]
return args
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