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111 lines
3.1 KiB
Python
111 lines
3.1 KiB
Python
#!/usr/bin/env python
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# encoding: utf-8
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# Matthias Jahn jahn dôt matthias ât freenet dôt de, 2007 (pmarat)
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"""
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Try to detect a C compiler from the list of supported compilers (gcc, msvc, etc)::
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def options(opt):
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opt.load('compiler_c')
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def configure(cnf):
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cnf.load('compiler_c')
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def build(bld):
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bld.program(source='main.c', target='app')
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The compilers are associated to platforms in :py:attr:`waflib.Tools.compiler_c.c_compiler`. To register
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a new C compiler named *cfoo* (assuming the tool ``waflib/extras/cfoo.py`` exists), use::
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from waflib.Tools.compiler_c import c_compiler
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c_compiler['win32'] = ['cfoo', 'msvc', 'gcc']
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def options(opt):
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opt.load('compiler_c')
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def configure(cnf):
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cnf.load('compiler_c')
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def build(bld):
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bld.program(source='main.c', target='app')
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Not all compilers need to have a specific tool. For example, the clang compilers can be detected by the gcc tools when using::
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$ CC=clang waf configure
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"""
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import re
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from waflib.Tools import ccroot
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from waflib import Utils
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from waflib.Logs import debug
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c_compiler = {
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'win32': ['msvc', 'gcc', 'clang'],
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'cygwin': ['gcc'],
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'darwin': ['clang', 'gcc'],
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'aix': ['xlc', 'gcc', 'clang'],
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'linux': ['gcc', 'clang', 'icc'],
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'sunos': ['suncc', 'gcc'],
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'irix': ['gcc', 'irixcc'],
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'hpux': ['gcc'],
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'osf1V': ['gcc'],
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'gnu': ['gcc', 'clang'],
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'java': ['gcc', 'msvc', 'clang', 'icc'],
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'default':['clang', 'gcc'],
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}
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"""
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Dict mapping platform names to Waf tools finding specific C compilers::
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from waflib.Tools.compiler_c import c_compiler
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c_compiler['linux'] = ['gcc', 'icc', 'suncc']
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"""
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def default_compilers():
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build_platform = Utils.unversioned_sys_platform()
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possible_compiler_list = c_compiler.get(build_platform, c_compiler['default'])
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return ' '.join(possible_compiler_list)
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def configure(conf):
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"""
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Detects a suitable C compiler
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:raises: :py:class:`waflib.Errors.ConfigurationError` when no suitable compiler is found
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"""
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try:
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test_for_compiler = conf.options.check_c_compiler or default_compilers()
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except AttributeError:
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conf.fatal("Add options(opt): opt.load('compiler_c')")
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for compiler in re.split('[ ,]+', test_for_compiler):
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conf.env.stash()
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conf.start_msg('Checking for %r (C compiler)' % compiler)
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try:
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conf.load(compiler)
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except conf.errors.ConfigurationError as e:
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conf.env.revert()
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conf.end_msg(False)
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debug('compiler_c: %r', e)
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else:
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if conf.env.CC:
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conf.end_msg(conf.env.get_flat('CC'))
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conf.env.COMPILER_CC = compiler
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conf.env.commit()
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break
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conf.env.revert()
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conf.end_msg(False)
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else:
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conf.fatal('could not configure a C compiler!')
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def options(opt):
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"""
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This is how to provide compiler preferences on the command-line::
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$ waf configure --check-c-compiler=gcc
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"""
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test_for_compiler = default_compilers()
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opt.load_special_tools('c_*.py', ban=['c_dumbpreproc.py'])
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cc_compiler_opts = opt.add_option_group('Configuration options')
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cc_compiler_opts.add_option('--check-c-compiler', default=None,
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help='list of C compilers to try [%s]' % test_for_compiler,
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dest="check_c_compiler")
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for x in test_for_compiler.split():
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opt.load('%s' % x)
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