chainer_setup_build.py 文件源码

def make_extensions(options, compiler):

    """Produce a list of Extension instances which passed to cythonize()."""

    no_cuda = options['no_cuda']
    settings = build.get_compiler_setting()

    include_dirs = settings['include_dirs']

    settings['include_dirs'] = [
        x for x in include_dirs if path.exists(x)]
    settings['library_dirs'] = [
        x for x in settings['library_dirs'] if path.exists(x)]
    if sys.platform != 'win32':
        settings['runtime_library_dirs'] = settings['library_dirs']

    if options['linetrace']:
        settings['define_macros'].append(('CYTHON_TRACE', '1'))
        settings['define_macros'].append(('CYTHON_TRACE_NOGIL', '1'))
    if no_cuda:
        settings['define_macros'].append(('CUPY_NO_CUDA', '1'))

    ret = []
    for module in MODULES:
        print('Include directories:', settings['include_dirs'])
        print('Library directories:', settings['library_dirs'])

        if not no_cuda:
            if not check_library(compiler,
                                 includes=module['include'],
                                 include_dirs=settings['include_dirs']):
                utils.print_warning(
                    'Include files not found: %s' % module['include'],
                    'Skip installing %s support' % module['name'],
                    'Check your CPATH environment variable')
                continue

            if not check_library(compiler,
                                 libraries=module['libraries'],
                                 library_dirs=settings['library_dirs']):
                utils.print_warning(
                    'Cannot link libraries: %s' % module['libraries'],
                    'Skip installing %s support' % module['name'],
                    'Check your LIBRARY_PATH environment variable')
                continue

            if 'check_method' in module and \
               not module['check_method'](compiler, settings):
                continue

        s = settings.copy()
        if not no_cuda:
            s['libraries'] = module['libraries']
        ret.extend([
            setuptools.Extension(f, [path.join(*f.split('.')) + '.pyx'], **s)
            for f in module['file']])
    return ret