blob: 741791e3e44e980e20b80b92f17fc6b2b4d0e7e3 [file] [log] [blame]
# -*- Mode: python; py-indent-offset: 4; indent-tabs-mode: nil; coding: utf-8; -*-
#
# Copyright (c) 2014, Regents of the University of California
#
# GPL 3.0 license, see the COPYING.md file for more information
from waflib import Logs, Configure
def options(opt):
opt.add_option('--debug', '--with-debug', action='store_true', default=False, dest='debug',
help='''Compile in debugging mode without all optimizations (-O0)''')
opt.add_option('--with-c++11', action='store_true', default=False, dest='use_cxx11',
help='''Enable C++11 mode (experimental, may not work)''')
def configure(conf):
areCustomCxxflagsPresent = (len(conf.env.CXXFLAGS) > 0)
defaultFlags = []
if conf.options.use_cxx11:
defaultFlags += ['-std=c++0x', '-std=c++11']
else:
defaultFlags += ['-std=c++03']
defaultFlags += ['-pedantic', '-Wall', '-Wno-long-long']
if conf.options.debug:
conf.define('_DEBUG', 1)
defaultFlags += ['-O0',
'-Og', # gcc >= 4.8
'-g3',
'-fcolor-diagnostics', # clang
'-fdiagnostics-color', # gcc >= 4.9
'-Werror'
]
if areCustomCxxflagsPresent:
missingFlags = [x for x in defaultFlags if x not in conf.env.CXXFLAGS]
if len(missingFlags) > 0:
Logs.warn("Selected debug mode, but CXXFLAGS is set to a custom value '%s'"
% " ".join(conf.env.CXXFLAGS))
Logs.warn("Default flags '%s' are not activated" % " ".join(missingFlags))
else:
conf.add_supported_cxxflags(defaultFlags)
else:
defaultFlags += ['-O2', '-g']
if not areCustomCxxflagsPresent:
conf.add_supported_cxxflags(defaultFlags)
@Configure.conf
def add_supported_cxxflags(self, cxxflags):
"""
Check which cxxflags are supported by compiler and add them to env.CXXFLAGS variable
"""
self.start_msg('Checking allowed flags for c++ compiler')
supportedFlags = []
for flag in cxxflags:
if self.check_cxx(cxxflags=['-Werror', flag], mandatory=False):
supportedFlags += [flag]
self.end_msg(' '.join(supportedFlags))
self.env.CXXFLAGS = supportedFlags + self.env.CXXFLAGS