Adding waf make script

This commit is contained in:
akmhoque committed 2014-02-01 23:46:17 -06:00
1 parent cd55247fad
commit fcf765daf3
8 files changed
+637 -2

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+37 -2
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@@ -62,9 +62,11 @@ Lsdb::getNameLsa(string key)
nameLsdb.end(),
bind(nameLsaCompareByKey, _1, key));
if( it != nameLsdb.end()){
if( it != nameLsdb.end())
{
return (*it);
}
}
@@ -78,12 +80,14 @@ Lsdb::installNameLsa(NameLsa &nlsa)
// add name LSA
addNameLsa(nlsa);
// update NPT and FIB
// if its not own LSA
}
else
{
// check for newer name LSA
NameLsa oldNameLsa=getNameLsa(nlsa.getLsaKey());
// Discard or Update Name lsa, NPT, FIB
// if its not own LSA
}
return true;
@@ -106,6 +110,14 @@ Lsdb::addNameLsa(NameLsa &nlsa)
bool
Lsdb::removeNameLsa(string& key)
{
std::list<NameLsa >::iterator it = std::find_if( nameLsdb.begin(),
nameLsdb.end(),
bind(nameLsaCompareByKey, _1, key));
if ( it != nameLsdb.end() )
{
nameLsdb.erase(it);
return true;
}
return false;
}
@@ -157,6 +169,7 @@ Lsdb::buildAndInstallOwnCorLsa(nlsr& pnlsr){
//cout<<corLsa;
installCorLsa(corLsa);
return true;
}
CorLsa&
@@ -179,6 +192,8 @@ Lsdb::installCorLsa(CorLsa &clsa)
{
// add cor LSA
addCorLsa(clsa);
//schedule routing table calculation only if
//hyperbolic calculation is scheduled
}
else
{
@@ -207,6 +222,15 @@ Lsdb::addCorLsa(CorLsa& clsa)
bool
Lsdb::removeCorLsa(string& key)
{
std::list<CorLsa >::iterator it = std::find_if( corLsdb.begin(),
corLsdb.end(),
bind(corLsaCompareByKey, _1, key));
if ( it != corLsdb.end() )
{
corLsdb.erase(it);
return true;
}
return false;
}
@@ -266,6 +290,9 @@ Lsdb::scheduledAdjLsaBuild(nlsr& pnlsr)
else
{
//remove if there is any adj lsa in LSDB
string key=pnlsr.getConfParameter().getRouterPrefix()+"/2";
removeAdjLsa(key);
// Remove alll fib entries as per NPT
}
pnlsr.setAdjBuildCount(pnlsr.getAdjBuildCount()-adjBuildCount);
}
@@ -308,7 +335,6 @@ Lsdb::getAdjLsa(string key)
if( it != adjLsdb.end()){
return (*it);
}
}
bool
@@ -349,6 +375,15 @@ Lsdb::buildAndInstallOwnAdjLsa(nlsr& pnlsr)
bool
Lsdb::removeAdjLsa(string& key)
{
std::list<AdjLsa >::iterator it = std::find_if( adjLsdb.begin(),
adjLsdb.end(),
bind(adjLsaCompareByKey, _1, key));
if ( it != adjLsdb.end() )
{
adjLsdb.erase(it);
return true;
}
return false;
}
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@@ -0,0 +1,7 @@
#scp -r NLSR0.0/* ndnuser@pollux.cs.memphis.edu:/NLSR_TEST/NLSR0.0/
#scp -r NLSR0.0/* ndnuser@maia.cs.memphis.edu:/NLSR_TEST/NLSR0.0/
#scp -r NLSR0.0/* ndnuser@altair.cs.memphis.edu:/NLSR_TEST/NLSR0.0/
rsync -a -r --progress *.*pp ndnuser@pollux.cs.memphis.edu:/home/ndnuser/NLSR_CPP/
rsync -a -r --progress *.*pp ndnuser@altair.cs.memphis.edu:/home/ndnuser/NLSR_CPP/
rsync -a -r --progress *.*pp ndnuser@maia.cs.memphis.edu:/home/ndnuser/NLSR_CPP/
Vendored Executable
BIN
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@@ -0,0 +1,373 @@
#!/usr/bin/env python
# encoding: utf-8
#
# partially based on boost.py written by Gernot Vormayr
# written by Ruediger Sonderfeld <ruediger@c-plusplus.de>, 2008
# modified by Bjoern Michaelsen, 2008
# modified by Luca Fossati, 2008
# rewritten for waf 1.5.1, Thomas Nagy, 2008
# rewritten for waf 1.6.2, Sylvain Rouquette, 2011
'''
This is an extra tool, not bundled with the default waf binary.
To add the boost tool to the waf file:
$ ./waf-light --tools=compat15,boost
or, if you have waf >= 1.6.2
$ ./waf update --files=boost
When using this tool, the wscript will look like:
def options(opt):
opt.load('compiler_cxx boost')
def configure(conf):
conf.load('compiler_cxx boost')
conf.check_boost(lib='system filesystem')
def build(bld):
bld(source='main.cpp', target='app', use='BOOST')
Options are generated, in order to specify the location of boost includes/libraries.
The `check_boost` configuration function allows to specify the used boost libraries.
It can also provide default arguments to the --boost-static and --boost-mt command-line arguments.
Everything will be packaged together in a BOOST component that you can use.
When using MSVC, a lot of compilation flags need to match your BOOST build configuration:
- you may have to add /EHsc to your CXXFLAGS or define boost::throw_exception if BOOST_NO_EXCEPTIONS is defined.
Errors: C4530
- boost libraries will try to be smart and use the (pretty but often not useful) auto-linking feature of MSVC
So before calling `conf.check_boost` you might want to disabling by adding:
conf.env.DEFINES_BOOST += ['BOOST_ALL_NO_LIB']
Errors:
- boost might also be compiled with /MT, which links the runtime statically.
If you have problems with redefined symbols,
self.env['DEFINES_%s' % var] += ['BOOST_ALL_NO_LIB']
self.env['CXXFLAGS_%s' % var] += ['/MD', '/EHsc']
Passing `--boost-linkage_autodetect` might help ensuring having a correct linkage in some basic cases.
'''
import sys
import re
from waflib import Utils, Logs, Errors
from waflib.Configure import conf
BOOST_LIBS = ['/usr/lib', '/usr/local/lib', '/opt/local/lib', '/sw/lib', '/lib', '/usr/lib/x86_64-linux-gnu', '/usr/lib/i386-linux-gnu', '/usr/local/ndn/lib']
BOOST_INCLUDES = ['/usr/include', '/usr/local/include', '/opt/local/include', '/sw/include', '/usr/local/ndn/include']
BOOST_VERSION_FILE = 'boost/version.hpp'
BOOST_VERSION_CODE = '''
#include <iostream>
#include <boost/version.hpp>
int main() { std::cout << BOOST_LIB_VERSION << std::endl; }
'''
# toolsets from {boost_dir}/tools/build/v2/tools/common.jam
PLATFORM = Utils.unversioned_sys_platform()
detect_intel = lambda env: (PLATFORM == 'win32') and 'iw' or 'il'
detect_clang = lambda env: (PLATFORM == 'darwin') and 'clang-darwin' or 'clang'
detect_mingw = lambda env: (re.search('MinGW', env.CXX[0])) and 'mgw' or 'gcc'
BOOST_TOOLSETS = {
'borland': 'bcb',
'clang': detect_clang,
'como': 'como',
'cw': 'cw',
'darwin': 'xgcc',
'edg': 'edg',
'g++': detect_mingw,
'gcc': detect_mingw,
'icpc': detect_intel,
'intel': detect_intel,
'kcc': 'kcc',
'kylix': 'bck',
'mipspro': 'mp',
'mingw': 'mgw',
'msvc': 'vc',
'qcc': 'qcc',
'sun': 'sw',
'sunc++': 'sw',
'tru64cxx': 'tru',
'vacpp': 'xlc'
}
def options(opt):
opt = opt.add_option_group('Boost Options')
opt.add_option('--boost-includes', type='string',
default='', dest='boost_includes',
help='''path to the boost includes root (~boost root)
e.g. /path/to/boost_1_47_0''')
opt.add_option('--boost-libs', type='string',
default='', dest='boost_libs',
help='''path to the directory where the boost libs are
e.g. /path/to/boost_1_47_0/stage/lib''')
opt.add_option('--boost-static', action='store_true',
default=False, dest='boost_static',
help='link with static boost libraries (.lib/.a)')
opt.add_option('--boost-mt', action='store_true',
default=False, dest='boost_mt',
help='select multi-threaded libraries')
opt.add_option('--boost-abi', type='string', default='', dest='boost_abi',
help='''select libraries with tags (dgsyp, d for debug),
see doc Boost, Getting Started, chapter 6.1''')
opt.add_option('--boost-linkage_autodetect', action="store_true", dest='boost_linkage_autodetect',
help="auto-detect boost linkage options (don't get used to it / might break other stuff)")
opt.add_option('--boost-toolset', type='string',
default='', dest='boost_toolset',
help='force a toolset e.g. msvc, vc90, \
gcc, mingw, mgw45 (default: auto)')
py_version = '%d%d' % (sys.version_info[0], sys.version_info[1])
opt.add_option('--boost-python', type='string',
default=py_version, dest='boost_python',
help='select the lib python with this version \
(default: %s)' % py_version)
@conf
def __boost_get_version_file(self, d):
dnode = self.root.find_dir(d)
if dnode:
return dnode.find_node(BOOST_VERSION_FILE)
return None
@conf
def boost_get_version(self, d):
"""silently retrieve the boost version number"""
node = self.__boost_get_version_file(d)
if node:
try:
txt = node.read()
except (OSError, IOError):
Logs.error("Could not read the file %r" % node.abspath())
else:
re_but = re.compile('^#define\\s+BOOST_LIB_VERSION\\s+"(.*)"', re.M)
m = re_but.search(txt)
if m:
return m.group(1)
return self.check_cxx(fragment=BOOST_VERSION_CODE, includes=[d], execute=True, define_ret=True)
@conf
def boost_get_includes(self, *k, **kw):
includes = k and k[0] or kw.get('includes', None)
if includes and self.__boost_get_version_file(includes):
return includes
for d in Utils.to_list(self.environ.get('INCLUDE', '')) + BOOST_INCLUDES:
if self.__boost_get_version_file(d):
return d
if includes:
self.end_msg('headers not found in %s' % includes)
self.fatal('The configuration failed')
else:
self.end_msg('headers not found, please provide a --boost-includes argument (see help)')
self.fatal('The configuration failed')
@conf
def boost_get_toolset(self, cc):
toolset = cc
if not cc:
build_platform = Utils.unversioned_sys_platform()
if build_platform in BOOST_TOOLSETS:
cc = build_platform
else:
cc = self.env.CXX_NAME
if cc in BOOST_TOOLSETS:
toolset = BOOST_TOOLSETS[cc]
return isinstance(toolset, str) and toolset or toolset(self.env)
@conf
def __boost_get_libs_path(self, *k, **kw):
''' return the lib path and all the files in it '''
if 'files' in kw:
return self.root.find_dir('.'), Utils.to_list(kw['files'])
libs = k and k[0] or kw.get('libs', None)
if libs:
path = self.root.find_dir(libs)
files = path.ant_glob('*boost_*')
if not libs or not files:
for d in Utils.to_list(self.environ.get('LIB', [])) + BOOST_LIBS:
path = self.root.find_dir(d)
if path:
files = path.ant_glob('*boost_*')
if files:
break
path = self.root.find_dir(d + '64')
if path:
files = path.ant_glob('*boost_*')
if files:
break
if not path:
if libs:
self.end_msg('libs not found in %s' % libs)
self.fatal('The configuration failed')
else:
self.end_msg('libs not found, please provide a --boost-libs argument (see help)')
self.fatal('The configuration failed')
self.to_log('Found the boost path in %r with the libraries:' % path)
for x in files:
self.to_log(' %r' % x)
return path, files
@conf
def boost_get_libs(self, *k, **kw):
'''
return the lib path and the required libs
according to the parameters
'''
path, files = self.__boost_get_libs_path(**kw)
t = []
if kw.get('mt', False):
t.append('mt')
if kw.get('abi', None):
t.append(kw['abi'])
tags = t and '(-%s)+' % '-'.join(t) or ''
toolset = self.boost_get_toolset(kw.get('toolset', ''))
toolset_pat = '(-%s[0-9]{0,3})+' % toolset
version = '(-%s)+' % self.env.BOOST_VERSION
def find_lib(re_lib, files):
for file in files:
if re_lib.search(file.name):
self.to_log('Found boost lib %s' % file)
return file
return None
def format_lib_name(name):
if name.startswith('lib') and self.env.CC_NAME != 'msvc':
name = name[3:]
return name[:name.rfind('.')]
libs = []
for lib in Utils.to_list(k and k[0] or kw.get('lib', None)):
py = (lib == 'python') and '(-py%s)+' % kw['python'] or ''
# Trying libraries, from most strict match to least one
for pattern in ['boost_%s%s%s%s%s' % (lib, toolset_pat, tags, py, version),
'boost_%s%s%s%s' % (lib, tags, py, version),
'boost_%s%s%s' % (lib, tags, version),
# Give up trying to find the right version
'boost_%s%s%s%s' % (lib, toolset_pat, tags, py),
'boost_%s%s%s' % (lib, tags, py),
'boost_%s%s' % (lib, tags)]:
self.to_log('Trying pattern %s' % pattern)
file = find_lib(re.compile(pattern), files)
if file:
libs.append(format_lib_name(file.name))
break
else:
self.end_msg('lib %s not found in %s' % (lib, path.abspath()))
self.fatal('The configuration failed')
return path.abspath(), libs
@conf
def check_boost(self, *k, **kw):
"""
Initialize boost libraries to be used.
Keywords: you can pass the same parameters as with the command line (without "--boost-").
Note that the command line has the priority, and should preferably be used.
"""
if not self.env['CXX']:
self.fatal('load a c++ compiler first, conf.load("compiler_cxx")')
params = {'lib': k and k[0] or kw.get('lib', None)}
for key, value in self.options.__dict__.items():
if not key.startswith('boost_'):
continue
key = key[len('boost_'):]
params[key] = value and value or kw.get(key, '')
var = kw.get('uselib_store', 'BOOST')
self.start_msg('Checking boost includes')
self.env['INCLUDES_%s' % var] = inc = self.boost_get_includes(**params)
self.env.BOOST_VERSION = self.boost_get_version(inc)
self.end_msg(self.env.BOOST_VERSION)
if Logs.verbose:
Logs.pprint('CYAN', ' path : %s' % self.env['INCLUDES_%s' % var])
if not params['lib']:
return
self.start_msg('Checking boost libs')
suffix = params.get('static', None) and 'ST' or ''
path, libs = self.boost_get_libs(**params)
self.env['%sLIBPATH_%s' % (suffix, var)] = [path]
self.env['%sLIB_%s' % (suffix, var)] = libs
self.end_msg('ok')
if Logs.verbose:
Logs.pprint('CYAN', ' path : %s' % path)
Logs.pprint('CYAN', ' libs : %s' % libs)
def try_link():
if 'system' in params['lib']:
self.check_cxx(
fragment="\n".join([
'#include <boost/system/error_code.hpp>',
'int main() { boost::system::error_code c; }',
]),
use=var,
execute=False,
)
if 'thread' in params['lib']:
self.check_cxx(
fragment="\n".join([
'#include <boost/thread.hpp>',
'int main() { boost::thread t; }',
]),
use=var,
execute=False,
)
if params.get('linkage_autodetect', False):
self.start_msg("Attempting to detect boost linkage flags")
toolset = self.boost_get_toolset(kw.get('toolset', ''))
if toolset in ['vc']:
# disable auto-linking feature, causing error LNK1181
# because the code wants to be linked against
self.env['DEFINES_%s' % var] += ['BOOST_ALL_NO_LIB']
# if no dlls are present, we guess the .lib files are not stubs
has_dlls = False
for x in Utils.listdir(path):
if x.endswith(self.env.cxxshlib_PATTERN % ''):
has_dlls = True
break
if not has_dlls:
self.env['STLIBPATH_%s' % var] = [path]
self.env['STLIB_%s' % var] = libs
del self.env['LIB_%s' % var]
del self.env['LIBPATH_%s' % var]
# we attempt to play with some known-to-work CXXFLAGS combinations
for cxxflags in (['/MD', '/EHsc'], []):
self.env.stash()
self.env["CXXFLAGS_%s" % var] += cxxflags
try:
try_link()
self.end_msg("ok: winning cxxflags combination: %s" % (self.env["CXXFLAGS_%s" % var]))
e = None
break
except Errors.ConfigurationError as exc:
self.env.revert()
e = exc
if e is not None:
self.end_msg("Could not auto-detect boost linking flags combination, you may report it to boost.py author", ex=e)
self.fatal('The configuration failed')
else:
self.end_msg("Boost linkage flags auto-detection not implemented (needed ?) for this toolchain")
self.fatal('The configuration failed')
else:
self.start_msg('Checking for boost linkage')
try:
try_link()
except Errors.ConfigurationError as e:
self.end_msg("Could not link against boost libraries using supplied options")
self.fatal('The configuration failed')
self.end_msg('ok')
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#! /usr/bin/env python
# encoding: utf-8
'''
When using this tool, the wscript will look like:
def options(opt):
opt.tool_options('ndnx')
def configure(conf):
conf.load('compiler_c ndnx')
def build(bld):
bld(source='main.cpp', target='app', use='NDNX')
Options are generated, in order to specify the location of ndnx includes/libraries.
'''
import sys, re
from waflib import Utils, Logs, Errors, Options, ConfigSet
from waflib.Configure import conf
NDNX_DIR=['/usr','/usr/local','/opt/local','/sw']
NDNX_VERSION_FILE='ndn/ndn.h'
NDNX_VERSION_CODE='''
#include <ndn/ndn.h>
#include <stdio.h>
int main() { printf ("%d.%d.%d", ((NDN_API_VERSION/100000) % 100), ((NDN_API_VERSION/1000) % 100), (NDN_API_VERSION % 1000)); return 0; }
'''
@conf
def __ndnx_get_version_file(self,dir):
# Logs.pprint ('CYAN', ' + %s/%s/%s' % (dir, 'include', NDNX_VERSION_FILE))
try:
return self.root.find_dir(dir).find_node('%s/%s' % ('include', NDNX_VERSION_FILE))
except:
return None
@conf
def ndnx_get_version(self,dir):
val=self.check_cc(fragment=NDNX_VERSION_CODE,includes=['%s/%s' % (dir, 'include')],execute=True,define_ret = True, mandatory=True)
return val
@conf
def ndnx_get_root(self,*k,**kw):
root=Options.options.ndnx_dir or (k and k[0]) or kw.get('path',None)
if root:
if self.__ndnx_get_version_file(root):
return root
self.fatal('NDNx not found in %s'%root)
for dir in NDNX_DIR:
if self.__ndnx_get_version_file(dir):
return dir
self.fatal('NDNx not found, please provide a --ndnx argument (see help)')
@conf
def check_openssl(self,*k,**kw):
root = k and k[0] or kw.get('path',None) or Options.options.openssl
mandatory = kw.get('mandatory', True)
var = kw.get('var', 'SSL')
CODE = """
#include <openssl/crypto.h>
#include <stdio.h>
int main(int argc, char **argv) {
(void)argc;
printf ("%s", argv[0]);
return 0;
}
"""
if root:
testApp = self.check_cc (lib=['ssl', 'crypto'],
header_name='openssl/crypto.h',
define_name='HAVE_%s' % var,
uselib_store=var,
mandatory = mandatory,
cflags="-I%s/include" % root,
linkflags="-L%s/lib" % root,
execute = True, fragment = CODE, define_ret = True)
else:
testApp = libcrypto = self.check_cc (lib=['ssl', 'crypto'],
header_name='openssl/crypto.h',
define_name='HAVE_%s' % var,
uselib_store=var,
mandatory = mandatory,
execute = True, fragment = CODE, define_ret = True)
if not testApp:
return
self.start_msg ('Checking if selected openssl matches NDNx')
ndn_var = kw.get('ndn_var', "NDNX")
if Utils.unversioned_sys_platform () == "darwin":
def otool (binary):
p = Utils.subprocess.Popen (['/usr/bin/otool', '-L', binary],
stdout = Utils.subprocess.PIPE, )
for line in p.communicate()[0].split ('\n'):
if re.match ('.*/libcrypto\..*', line):
return line
selected_crypto = otool (testApp)
ndnd_crypto = otool ('%s/bin/ndnd' % self.env['%s_ROOT' % ndn_var])
if ndnd_crypto != selected_crypto:
self.fatal ("Selected openssl does not match used to compile NDNx (%s != %s)" %
(selected_crypto.strip (), ndnd_crypto.strip ()))
self.end_msg (True)
elif Utils.unversioned_sys_platform () == "linux" or Utils.unversioned_sys_platform () == "freebsd":
def ldd (binary):
p = Utils.subprocess.Popen (['/usr/bin/ldd', binary],
stdout = Utils.subprocess.PIPE, )
for line in p.communicate()[0].split ('\n'):
if re.match ('libcrypto\..*', line):
return line
selected_crypto = ldd (testApp)
ndnd_crypto = ldd ('%s/bin/ndnd' % self.env['%s_ROOT' % ndn_var])
if ndnd_crypto != selected_crypto:
self.fatal ("Selected openssl does not match used to compile NDNx (%s != %s)" %
(selected_crypto.strip (), ndnd_crypto.strip ()))
self.end_msg (True)
else:
self.end_msg ("Don't know how to check", 'YELLOW')
@conf
def check_ndnx(self,*k,**kw):
if not self.env['CC']:
self.fatal('load a c compiler first, conf.load("compiler_c")')
var=kw.get('uselib_store', 'NDNX')
self.start_msg('Checking for NDNx')
root = self.ndnx_get_root(*k,**kw);
self.env.NDNX_VERSION=self.ndnx_get_version(root)
self.env['INCLUDES_%s' % var]= '%s/%s' % (root, "include");
self.env['LIB_%s' % var] = "ndn"
self.env['LIBPATH_%s' % var] = '%s/%s' % (root, "lib")
self.env['%s_ROOT' % var] = root
self.end_msg("%s in %s " % (self.env.NDNX_VERSION, root))
if Logs.verbose:
Logs.pprint('CYAN',' NDNx include : %s'%self.env['INCLUDES_%s' % var])
Logs.pprint('CYAN',' NDNx lib : %s'%self.env['LIB_%s' % var])
Logs.pprint('CYAN',' NDNx libpath : %s'%self.env['LIBPATH_%s' % var])
def options(opt):
"""
NDNx options
"""
ndnopt = opt.add_option_group("NDNx Options")
ndnopt.add_option('--ndnx',type='string',default=None,dest='ndnx_dir',help='''path to where NDNx is installed, e.g. /usr/local''')
ndnopt.add_option('--openssl',type='string',default='',dest='openssl',help='''path to openssl, should be the same NDNx is compiled against''')
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# -*- Mode: python; py-indent-offset: 4; indent-tabs-mode: nil; coding: utf-8; -*-
from waflib import Build, Logs, Utils, Task, TaskGen, Configure
def options(opt):
opt.load('compiler_c compiler_cxx gnu_dirs c_osx')
opt.load('boost', tooldir=['.waf-tools'])
opt = opt.add_option_group('Options')
opt.add_option('--debug',action='store_true',default=False,dest='debug',help='''debugging mode''')
def configure(conf):
conf.load("compiler_cxx boost gnu_dirs")
if conf.options.debug:
conf.define ('_DEBUG', 1)
flags = ['-O0',
'-Wall',
# '-Werror',
'-Wno-unused-variable',
'-g3',
'-Wno-unused-private-field', # only clang supports
'-fcolor-diagnostics', # only clang supports
'-Qunused-arguments', # only clang supports
'-Wno-tautological-compare', # suppress warnings from CryptoPP
'-Wno-unused-function', # another annoying warning from CryptoPP
'-Wno-deprecated-declarations',
]
conf.add_supported_cxxflags (cxxflags = flags)
else:
flags = ['-O3', '-g', '-Wno-tautological-compare', '-Wno-unused-function', '-Wno-deprecated-declarations']
conf.add_supported_cxxflags (cxxflags = flags)
conf.check_cfg(package='libndn-cpp-dev', args=['--cflags', '--libs'], uselib_store='NDN_CPP', mandatory=True)
def build (bld):
bld (
features=['cxx', 'cxxprogram'],
target="nlsr",
source = bld.path.ant_glob('*.cpp'),
use = 'NDN_CPP',
)
@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=[flag], mandatory=False):
supportedFlags += [flag]
self.end_msg (' '.join (supportedFlags))
self.env.CXXFLAGS += supportedFlags