mapnik/scons/scons-local-4.8.1/SCons/Tool/clang.py

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# MIT License
#
# Copyright 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.
"""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.
"""
# 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
from subprocess import DEVNULL, PIPE
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import SCons.Util
import SCons.Tool.cc
from SCons.Tool.clangCommon import get_clang_install_dirs
from SCons.Tool.MSCommon import msvc_setup_env_once
compilers = ['clang']
def generate(env) -> None:
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"""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'])
)
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if clang:
clang_bin_dir = os.path.dirname(clang)
env.AppendENVPath("PATH", clang_bin_dir)
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# Set-up ms tools paths
msvc_setup_env_once(env)
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']:
kw = {
'stdout': PIPE,
'stderr': DEVNULL,
'universal_newlines': True,
}
cp = SCons.Action.scons_subproc_run(env, [env['CC'], '-dumpversion'], **kw)
line = cp.stdout
if line:
env['CCVERSION'] = line
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env['CCDEPFLAGS'] = '-MMD -MF ${TARGET}.d'
env["NINJA_DEPFILE_PARSE_FORMAT"] = 'clang'
def exists(env):
return env.Detect(compilers)
# Local Variables:
# tab-width:4
# indent-tabs-mode:nil
# End:
# vim: set expandtab tabstop=4 shiftwidth=4: