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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 Folly(CMakePackage):
"""Folly (acronymed loosely after Facebook Open Source Library) is a
library of C++11 components designed with practicality and efficiency
in mind.
Folly contains a variety of core library components used extensively at
Facebook. In particular, it's often a dependency of Facebook's other open
source C++ efforts and place where those projects can share code.
"""
homepage = "https://github.com/facebook/folly"
url = "https://github.com/facebook/folly/releases/download/v2021.05.24.00/folly-v2021.05.24.00.tar.gz"
version('2021.05.24.00', sha256='9d308adefe4670637f5c7d96309b3b394ac3fa129bc954f5dfbdd8b741c02aad')
# CMakePackage Dependency
depends_on('pkgconfig', type='build')
# folly requires gcc 5+ and a version of boost compiled with >= C++14
variant('cxxstd', default='14', values=('14', '17'), multi=False, description='Use the specified C++ standard when building.')
depends_on('boost+context+container+exception+filesystem+program_options+regex+serialization+system+thread cxxstd=14', when='cxxstd=14')
depends_on('boost+context+container+exception+filesystem+program_options+regex+serialization+system+thread cxxstd=17', when='cxxstd=17')
# required dependencies
depends_on('gflags')
depends_on('glog')
depends_on('double-conversion')
depends_on('libevent')
depends_on('fmt')
# optional dependencies
variant('libdwarf', default=False, description="Optional Dependency")
variant('elfutils', default=False, description="Optional Dependency")
variant('libunwind', default=False, description="Optional Dependency")
depends_on('libdwarf', when='+libdwarf')
depends_on('elfutils', when='+elfutils')
depends_on('libunwind', when='+libunwind')
configure_directory = 'folly'
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