| Alexander Afanasyev | 97e4cac | 2014-03-28 10:55:11 -0700 | [diff] [blame] | 1 | # -*- Mode: python; py-indent-offset: 4; indent-tabs-mode: nil; coding: utf-8; -*- |
| 2 | # |
| 3 | # Copyright (c) 2014, Regents of the University of California |
| 4 | # |
| 5 | # GPL 3.0 license, see the COPYING.md file for more information |
| 6 | |
| 7 | from waflib import Logs, Configure |
| 8 | |
| 9 | def options(opt): |
| 10 | opt.add_option('--debug', '--with-debug', action='store_true', default=False, dest='debug', |
| 11 | help='''Compile in debugging mode without all optimizations (-O0)''') |
| 12 | |
| 13 | def configure(conf): |
| 14 | areCustomCxxflagsPresent = (len(conf.env.CXXFLAGS) > 0) |
| 15 | if conf.options.debug: |
| 16 | conf.define('_DEBUG', 1) |
| 17 | defaultFlags = ['-O0', '-g3', |
| 18 | '-Werror', |
| 19 | '-Wall', |
| 20 | '-fcolor-diagnostics', # only clang supports |
| 21 | ] |
| 22 | |
| 23 | if areCustomCxxflagsPresent: |
| 24 | missingFlags = [x for x in defaultFlags if x not in conf.env.CXXFLAGS] |
| 25 | if len(missingFlags) > 0: |
| 26 | Logs.warn("Selected debug mode, but CXXFLAGS is set to a custom value '%s'" |
| 27 | % " ".join(conf.env.CXXFLAGS)) |
| 28 | Logs.warn("Default flags '%s' are not activated" % " ".join(missingFlags)) |
| 29 | else: |
| 30 | conf.add_supported_cxxflags(cxxflags=defaultFlags) |
| 31 | else: |
| 32 | defaultFlags = ['-O2', '-g', '-Wall'] |
| 33 | if not areCustomCxxflagsPresent: |
| 34 | conf.add_supported_cxxflags(cxxflags=defaultFlags) |
| 35 | |
| 36 | @Configure.conf |
| 37 | def add_supported_cxxflags(self, cxxflags): |
| 38 | """ |
| 39 | Check which cxxflags are supported by compiler and add them to env.CXXFLAGS variable |
| 40 | """ |
| 41 | self.start_msg('Checking allowed flags for c++ compiler') |
| 42 | |
| 43 | supportedFlags = [] |
| 44 | for flag in cxxflags: |
| 45 | if self.check_cxx(cxxflags=[flag], mandatory=False): |
| 46 | supportedFlags += [flag] |
| 47 | |
| 48 | self.end_msg(' '.join (supportedFlags)) |
| 49 | self.env.CXXFLAGS = supportedFlags + self.env.CXXFLAGS |