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# -*- coding: utf-8; -*-
"""SCons.Tool.clang
Tool-specific initialization for clang.
There normally shouldn't be any need to import this module directly.
It will usually be imported through the generic SCons.Tool.Tool()
selection method.
"""
#
# Copyright (c) 2001 - 2019 The SCons Foundation
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
# __revision__ = "src/engine/SCons/Tool/clang.py 72ae09dc35ac2626f8ff711d8c4b30b6138e08e3 2019-08-08 14:50:06 bdeegan"
# Based on SCons/Tool/gcc.py by Paweł Tomulik 2014 as a separate tool.
# Brought into the SCons mainline by Russel Winder 2017.
import os
import re
import subprocess
import sys
import SCons.Util
import SCons.Tool.cc
from SCons.Tool.clangCommon import get_clang_install_dirs
compilers = ['clang']
def generate(env):
"""Add Builders and construction variables for clang to an Environment."""
SCons.Tool.cc.generate(env)
if env['PLATFORM'] == 'win32':
# Ensure that we have a proper path for clang
clang = SCons.Tool.find_program_path(env, compilers[0],
default_paths=get_clang_install_dirs(env['PLATFORM']))
if clang:
clang_bin_dir = os.path.dirname(clang)
env.AppendENVPath('PATH', clang_bin_dir)
env['CC'] = env.Detect(compilers) or 'clang'
if env['PLATFORM'] in ['cygwin', 'win32']:
env['SHCCFLAGS'] = SCons.Util.CLVar('$CCFLAGS')
else:
env['SHCCFLAGS'] = SCons.Util.CLVar('$CCFLAGS -fPIC')
# determine compiler version
if env['CC']:
#pipe = SCons.Action._subproc(env, [env['CC'], '-dumpversion'],
pipe = SCons.Action._subproc(env, [env['CC'], '--version'],
stdin='devnull',
stderr='devnull',
stdout=subprocess.PIPE)
if pipe.wait() != 0: return
# clang -dumpversion is of no use
with pipe.stdout:
line = pipe.stdout.readline()
if sys.version_info[0] > 2:
line = line.decode()
match = re.search(r'clang +version +([0-9]+(?:\.[0-9]+)+)', line)
if match:
env['CCVERSION'] = match.group(1)
def exists(env):
return env.Detect(compilers)
# Local Variables:
# tab-width:4
# indent-tabs-mode:nil
# End:
# vim: set expandtab tabstop=4 shiftwidth=4:
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