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author | David Robillard <d@drobilla.net> | 2018-09-15 14:51:02 +0200 |
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committer | David Robillard <d@drobilla.net> | 2018-09-15 14:51:02 +0200 |
commit | eede9648d50c3750f6f8d1319a79dd76d7f10b55 (patch) | |
tree | ff0760d5f3f0e994413c8c1dff7a4fed37914bee /Tools/compiler_cxx.py | |
download | ingen-eede9648d50c3750f6f8d1319a79dd76d7f10b55.tar.gz ingen-eede9648d50c3750f6f8d1319a79dd76d7f10b55.tar.bz2 ingen-eede9648d50c3750f6f8d1319a79dd76d7f10b55.zip |
Squashed 'waflib/' content from commit 982416b8
git-subtree-dir: waflib
git-subtree-split: 982416b8a6c6728e200243e1be3ab60435c08830
Diffstat (limited to 'Tools/compiler_cxx.py')
-rw-r--r-- | Tools/compiler_cxx.py | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/Tools/compiler_cxx.py b/Tools/compiler_cxx.py new file mode 100644 index 00000000..1af65a22 --- /dev/null +++ b/Tools/compiler_cxx.py @@ -0,0 +1,111 @@ +#!/usr/bin/env python +# encoding: utf-8 +# Matthias Jahn jahn dôt matthias ât freenet dôt de 2007 (pmarat) + +""" +Try to detect a C++ compiler from the list of supported compilers (g++, msvc, etc):: + + def options(opt): + opt.load('compiler_cxx') + def configure(cnf): + cnf.load('compiler_cxx') + def build(bld): + bld.program(source='main.cpp', target='app') + +The compilers are associated to platforms in :py:attr:`waflib.Tools.compiler_cxx.cxx_compiler`. To register +a new C++ compiler named *cfoo* (assuming the tool ``waflib/extras/cfoo.py`` exists), use:: + + from waflib.Tools.compiler_cxx import cxx_compiler + cxx_compiler['win32'] = ['cfoo', 'msvc', 'gcc'] + + def options(opt): + opt.load('compiler_cxx') + def configure(cnf): + cnf.load('compiler_cxx') + def build(bld): + bld.program(source='main.c', target='app') + +Not all compilers need to have a specific tool. For example, the clang compilers can be detected by the gcc tools when using:: + + $ CXX=clang waf configure +""" + + +import re +from waflib.Tools import ccroot +from waflib import Utils +from waflib.Logs import debug + +cxx_compiler = { +'win32': ['msvc', 'g++', 'clang++'], +'cygwin': ['g++'], +'darwin': ['clang++', 'g++'], +'aix': ['xlc++', 'g++', 'clang++'], +'linux': ['g++', 'clang++', 'icpc'], +'sunos': ['sunc++', 'g++'], +'irix': ['g++'], +'hpux': ['g++'], +'osf1V': ['g++'], +'gnu': ['g++', 'clang++'], +'java': ['g++', 'msvc', 'clang++', 'icpc'], +'default': ['clang++', 'g++'] +} +""" +Dict mapping the platform names to Waf tools finding specific C++ compilers:: + + from waflib.Tools.compiler_cxx import cxx_compiler + cxx_compiler['linux'] = ['gxx', 'icpc', 'suncxx'] +""" + +def default_compilers(): + build_platform = Utils.unversioned_sys_platform() + possible_compiler_list = cxx_compiler.get(build_platform, cxx_compiler['default']) + return ' '.join(possible_compiler_list) + +def configure(conf): + """ + Detects a suitable C++ compiler + + :raises: :py:class:`waflib.Errors.ConfigurationError` when no suitable compiler is found + """ + try: + test_for_compiler = conf.options.check_cxx_compiler or default_compilers() + except AttributeError: + conf.fatal("Add options(opt): opt.load('compiler_cxx')") + + for compiler in re.split('[ ,]+', test_for_compiler): + conf.env.stash() + conf.start_msg('Checking for %r (C++ compiler)' % compiler) + try: + conf.load(compiler) + except conf.errors.ConfigurationError as e: + conf.env.revert() + conf.end_msg(False) + debug('compiler_cxx: %r', e) + else: + if conf.env.CXX: + conf.end_msg(conf.env.get_flat('CXX')) + conf.env.COMPILER_CXX = compiler + conf.env.commit() + break + conf.env.revert() + conf.end_msg(False) + else: + conf.fatal('could not configure a C++ compiler!') + +def options(opt): + """ + This is how to provide compiler preferences on the command-line:: + + $ waf configure --check-cxx-compiler=gxx + """ + test_for_compiler = default_compilers() + opt.load_special_tools('cxx_*.py') + cxx_compiler_opts = opt.add_option_group('Configuration options') + cxx_compiler_opts.add_option('--check-cxx-compiler', default=None, + help='list of C++ compilers to try [%s]' % test_for_compiler, + dest="check_cxx_compiler") + + for x in test_for_compiler.split(): + opt.load('%s' % x) + |