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Alexander Afanasyev5e1288e2014-03-28 11:11:48 -07001# -*- Mode: python; py-indent-offset: 4; indent-tabs-mode: nil; coding: utf-8; -*-
Alexander Afanasyev5e1288e2014-03-28 11:11:48 -07002
3from waflib import Logs, Configure
4
5def options(opt):
6 opt.add_option('--debug', '--with-debug', action='store_true', default=False, dest='debug',
7 help='''Compile in debugging mode without all optimizations (-O0)''')
Alexander Afanasyev766cea72014-04-24 19:16:42 -07008 opt.add_option('--with-c++11', action='store_true', default=False, dest='use_cxx11',
9 help='''Use C++ 11 features if available in the compiler''')
Alexander Afanasyev5e1288e2014-03-28 11:11:48 -070010
11def configure(conf):
12 areCustomCxxflagsPresent = (len(conf.env.CXXFLAGS) > 0)
Alexander Afanasyevb78bc4d2014-04-09 21:20:52 -070013 defaultFlags = []
14
15 if conf.options.use_cxx11:
16 defaultFlags += ['-std=c++0x', '-std=c++11']
17 else:
18 defaultFlags += ['-std=c++03']
19
Alexander Afanasyevb578ab32014-06-13 14:05:51 -070020 defaultFlags += ['-pedantic', '-Wall', '-Wno-long-long', '-Wno-unneeded-internal-declaration']
Alexander Afanasyevb78bc4d2014-04-09 21:20:52 -070021
Alexander Afanasyev5e1288e2014-03-28 11:11:48 -070022 if conf.options.debug:
23 conf.define('_DEBUG', 1)
Alexander Afanasyevb78bc4d2014-04-09 21:20:52 -070024 defaultFlags += ['-O0',
25 '-Og', # gcc >= 4.8
26 '-g3',
27 '-fcolor-diagnostics', # clang
28 '-fdiagnostics-color', # gcc >= 4.9
Alexander Afanasyevb67090a2014-04-29 22:31:01 -070029 '-Werror',
30 '-Wno-error=deprecated-register',
Junxiao Shi46ffa692014-05-16 11:11:00 -070031 '-Wno-error=maybe-uninitialized', # Bug #1615
Alexander Afanasyev5e1288e2014-03-28 11:11:48 -070032 ]
Alexander Afanasyev5e1288e2014-03-28 11:11:48 -070033 if areCustomCxxflagsPresent:
34 missingFlags = [x for x in defaultFlags if x not in conf.env.CXXFLAGS]
35 if len(missingFlags) > 0:
36 Logs.warn("Selected debug mode, but CXXFLAGS is set to a custom value '%s'"
Alexander Afanasyevb78bc4d2014-04-09 21:20:52 -070037 % " ".join(conf.env.CXXFLAGS))
Alexander Afanasyev5e1288e2014-03-28 11:11:48 -070038 Logs.warn("Default flags '%s' are not activated" % " ".join(missingFlags))
39 else:
Alexander Afanasyevb78bc4d2014-04-09 21:20:52 -070040 conf.add_supported_cxxflags(defaultFlags)
Alexander Afanasyev5e1288e2014-03-28 11:11:48 -070041 else:
Alexander Afanasyevb78bc4d2014-04-09 21:20:52 -070042 defaultFlags += ['-O2', '-g']
Alexander Afanasyev5e1288e2014-03-28 11:11:48 -070043 if not areCustomCxxflagsPresent:
Alexander Afanasyevb78bc4d2014-04-09 21:20:52 -070044 conf.add_supported_cxxflags(defaultFlags)
Alexander Afanasyev5e1288e2014-03-28 11:11:48 -070045
46@Configure.conf
47def add_supported_cxxflags(self, cxxflags):
48 """
49 Check which cxxflags are supported by compiler and add them to env.CXXFLAGS variable
50 """
51 self.start_msg('Checking allowed flags for c++ compiler')
52
53 supportedFlags = []
54 for flag in cxxflags:
Alexander Afanasyev3e6a98e2014-04-25 12:02:13 -070055 if self.check_cxx(cxxflags=['-Werror', flag], mandatory=False):
Alexander Afanasyev5e1288e2014-03-28 11:11:48 -070056 supportedFlags += [flag]
57
Alexander Afanasyevb78bc4d2014-04-09 21:20:52 -070058 self.end_msg(' '.join(supportedFlags))
Alexander Afanasyev5e1288e2014-03-28 11:11:48 -070059 self.env.CXXFLAGS = supportedFlags + self.env.CXXFLAGS