Switch to using a submodule for autowaf

2 files changed, 0 insertions, 1351 deletions

diff --git a/waflib b/waflib
new file mode 160000
+Subproject 2314e236ca6e7d94a26c3c17091da0f25f5867f
diff --git a/waflib/Tools/c_config.py b/waflib/Tools/c_config.py
deleted file mode 100644
index d546be95..00000000
--- a/waflib/Tools/c_config.py
+++ /dev/null
@@ -1,1351 +0,0 @@
-#!/usr/bin/env python
-# encoding: utf-8
-# Thomas Nagy, 2005-2018 (ita)
-
-"""
-C/C++/D configuration helpers
-"""
-
-from __future__ import with_statement
-
-import os, re, shlex
-from waflib import Build, Utils, Task, Options, Logs, Errors, Runner
-from waflib.TaskGen import after_method, feature
-from waflib.Configure import conf
-
-WAF_CONFIG_H   = 'config.h'
-"""default name for the config.h file"""
-
-DEFKEYS = 'define_key'
-INCKEYS = 'include_key'
-
-SNIP_EMPTY_PROGRAM = '''
-int main(int argc, char **argv) {
-	(void)argc; (void)argv;
-	return 0;
-}
-'''
-
-MACRO_TO_DESTOS = {
-'__linux__'                                      : 'linux',
-'__GNU__'                                        : 'gnu', # hurd
-'__FreeBSD__'                                    : 'freebsd',
-'__NetBSD__'                                     : 'netbsd',
-'__OpenBSD__'                                    : 'openbsd',
-'__sun'                                          : 'sunos',
-'__hpux'                                         : 'hpux',
-'__sgi'                                          : 'irix',
-'_AIX'                                           : 'aix',
-'__CYGWIN__'                                     : 'cygwin',
-'__MSYS__'                                       : 'cygwin',
-'_UWIN'                                          : 'uwin',
-'_WIN64'                                         : 'win32',
-'_WIN32'                                         : 'win32',
-# Note about darwin: this is also tested with 'defined __APPLE__ && defined __MACH__' somewhere below in this file.
-'__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__'  : 'darwin',
-'__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__' : 'darwin', # iphone
-'__QNX__'                                        : 'qnx',
-'__native_client__'                              : 'nacl' # google native client platform
-}
-
-MACRO_TO_DEST_CPU = {
-'__x86_64__'  : 'x86_64',
-'__amd64__'   : 'x86_64',
-'__i386__'    : 'x86',
-'__ia64__'    : 'ia',
-'__mips__'    : 'mips',
-'__sparc__'   : 'sparc',
-'__alpha__'   : 'alpha',
-'__aarch64__' : 'aarch64',
-'__thumb__'   : 'thumb',
-'__arm__'     : 'arm',
-'__hppa__'    : 'hppa',
-'__powerpc__' : 'powerpc',
-'__ppc__'     : 'powerpc',
-'__convex__'  : 'convex',
-'__m68k__'    : 'm68k',
-'__s390x__'   : 's390x',
-'__s390__'    : 's390',
-'__sh__'      : 'sh',
-'__xtensa__'  : 'xtensa',
-}
-
-@conf
-def parse_flags(self, line, uselib_store, env=None, force_static=False, posix=None):
-	"""
-	Parses flags from the input lines, and adds them to the relevant use variables::
-
-		def configure(conf):
-			conf.parse_flags('-O3', 'FOO')
-			# conf.env.CXXFLAGS_FOO = ['-O3']
-			# conf.env.CFLAGS_FOO = ['-O3']
-
-	:param line: flags
-	:type line: string
-	:param uselib_store: where to add the flags
-	:type uselib_store: string
-	:param env: config set or conf.env by default
-	:type env: :py:class:`waflib.ConfigSet.ConfigSet`
-	"""
-
-	assert(isinstance(line, str))
-
-	env = env or self.env
-
-	# Issue 811 and 1371
-	if posix is None:
-		posix = True
-		if '\\' in line:
-			posix = ('\\ ' in line) or ('\\\\' in line)
-
-	lex = shlex.shlex(line, posix=posix)
-	lex.whitespace_split = True
-	lex.commenters = ''
-	lst = list(lex)
-
-	# append_unique is not always possible
-	# for example, apple flags may require both -arch i386 and -arch ppc
-	uselib = uselib_store
-	def app(var, val):
-		env.append_value('%s_%s' % (var, uselib), val)
-	def appu(var, val):
-		env.append_unique('%s_%s' % (var, uselib), val)
-	static = False
-	while lst:
-		x = lst.pop(0)
-		st = x[:2]
-		ot = x[2:]
-
-		if st == '-I' or st == '/I':
-			if not ot:
-				ot = lst.pop(0)
-			appu('INCLUDES', ot)
-		elif st == '-i':
-			tmp = [x, lst.pop(0)]
-			app('CFLAGS', tmp)
-			app('CXXFLAGS', tmp)
-		elif st == '-D' or (env.CXX_NAME == 'msvc' and st == '/D'): # not perfect but..
-			if not ot:
-				ot = lst.pop(0)
-			app('DEFINES', ot)
-		elif st == '-l':
-			if not ot:
-				ot = lst.pop(0)
-			prefix = 'STLIB' if (force_static or static) else 'LIB'
-			app(prefix, ot)
-		elif st == '-L':
-			if not ot:
-				ot = lst.pop(0)
-			prefix = 'STLIBPATH' if (force_static or static) else 'LIBPATH'
-			appu(prefix, ot)
-		elif x.startswith('/LIBPATH:'):
-			prefix = 'STLIBPATH' if (force_static or static) else 'LIBPATH'
-			appu(prefix, x.replace('/LIBPATH:', ''))
-		elif x.startswith('-std='):
-			prefix = 'CXXFLAGS' if '++' in x else 'CFLAGS'
-			app(prefix, x)
-		elif x.startswith('+') or x in ('-pthread', '-fPIC', '-fpic', '-fPIE', '-fpie'):
-			app('CFLAGS', x)
-			app('CXXFLAGS', x)
-			app('LINKFLAGS', x)
-		elif x == '-framework':
-			appu('FRAMEWORK', lst.pop(0))
-		elif x.startswith('-F'):
-			appu('FRAMEWORKPATH', x[2:])
-		elif x == '-Wl,-rpath' or x == '-Wl,-R':
-			app('RPATH', lst.pop(0).lstrip('-Wl,'))
-		elif x.startswith('-Wl,-R,'):
-			app('RPATH', x[7:])
-		elif x.startswith('-Wl,-R'):
-			app('RPATH', x[6:])
-		elif x.startswith('-Wl,-rpath,'):
-			app('RPATH', x[11:])
-		elif x == '-Wl,-Bstatic' or x == '-Bstatic':
-			static = True
-		elif x == '-Wl,-Bdynamic' or x == '-Bdynamic':
-			static = False
-		elif x.startswith('-Wl') or x in ('-rdynamic', '-pie'):
-			app('LINKFLAGS', x)
-		elif x.startswith(('-m', '-f', '-dynamic', '-O', '-g')):
-			# Adding the -W option breaks python builds on Openindiana
-			app('CFLAGS', x)
-			app('CXXFLAGS', x)
-		elif x.startswith('-bundle'):
-			app('LINKFLAGS', x)
-		elif x.startswith(('-undefined', '-Xlinker')):
-			arg = lst.pop(0)
-			app('LINKFLAGS', [x, arg])
-		elif x.startswith(('-arch', '-isysroot')):
-			tmp = [x, lst.pop(0)]
-			app('CFLAGS', tmp)
-			app('CXXFLAGS', tmp)
-			app('LINKFLAGS', tmp)
-		elif x.endswith(('.a', '.so', '.dylib', '.lib')):
-			appu('LINKFLAGS', x) # not cool, #762
-		else:
-			self.to_log('Unhandled flag %r' % x)
-
-@conf
-def validate_cfg(self, kw):
-	"""
-	Searches for the program *pkg-config* if missing, and validates the
-	parameters to pass to :py:func:`waflib.Tools.c_config.exec_cfg`.
-
-	:param path: the **-config program to use** (default is *pkg-config*)
-	:type path: list of string
-	:param msg: message to display to describe the test executed
-	:type msg: string
-	:param okmsg: message to display when the test is successful
-	:type okmsg: string
-	:param errmsg: message to display in case of error
-	:type errmsg: string
-	"""
-	if not 'path' in kw:
-		if not self.env.PKGCONFIG:
-			self.find_program('pkg-config', var='PKGCONFIG')
-		kw['path'] = self.env.PKGCONFIG
-
-	# verify that exactly one action is requested
-	s = ('atleast_pkgconfig_version' in kw) + ('modversion' in kw) + ('package' in kw)
-	if s != 1:
-		raise ValueError('exactly one of atleast_pkgconfig_version, modversion and package must be set')
-	if not 'msg' in kw:
-		if 'atleast_pkgconfig_version' in kw:
-			kw['msg'] = 'Checking for pkg-config version >= %r' % kw['atleast_pkgconfig_version']
-		elif 'modversion' in kw:
-			kw['msg'] = 'Checking for %r version' % kw['modversion']
-		else:
-			kw['msg'] = 'Checking for %r' %(kw['package'])
-
-	# let the modversion check set the okmsg to the detected version
-	if not 'okmsg' in kw and not 'modversion' in kw:
-		kw['okmsg'] = 'yes'
-	if not 'errmsg' in kw:
-		kw['errmsg'] = 'not found'
-
-	# pkg-config version
-	if 'atleast_pkgconfig_version' in kw:
-		pass
-	elif 'modversion' in kw:
-		if not 'uselib_store' in kw:
-			kw['uselib_store'] = kw['modversion']
-		if not 'define_name' in kw:
-			kw['define_name'] = '%s_VERSION' % Utils.quote_define_name(kw['uselib_store'])
-	else:
-		if not 'uselib_store' in kw:
-			kw['uselib_store'] = Utils.to_list(kw['package'])[0].upper()
-		if not 'define_name' in kw:
-			kw['define_name'] = self.have_define(kw['uselib_store'])
-
-@conf
-def exec_cfg(self, kw):
-	"""
-	Executes ``pkg-config`` or other ``-config`` applications to collect configuration flags:
-
-	* if atleast_pkgconfig_version is given, check that pkg-config has the version n and return
-	* if modversion is given, then return the module version
-	* else, execute the *-config* program with the *args* and *variables* given, and set the flags on the *conf.env.FLAGS_name* variable
-
-	:param atleast_pkgconfig_version: minimum pkg-config version to use (disable other tests)
-	:type atleast_pkgconfig_version: string
-	:param package: package name, for example *gtk+-2.0*
-	:type package: string
-	:param uselib_store: if the test is successful, define HAVE\\_*name*. It is also used to define *conf.env.FLAGS_name* variables.
-	:type uselib_store: string
-	:param modversion: if provided, return the version of the given module and define *name*\\_VERSION
-	:type modversion: string
-	:param args: arguments to give to *package* when retrieving flags
-	:type args: list of string
-	:param variables: return the values of particular variables
-	:type variables: list of string
-	:param define_variable: additional variables to define (also in conf.env.PKG_CONFIG_DEFINES)
-	:type define_variable: dict(string: string)
-	"""
-
-	path = Utils.to_list(kw['path'])
-	env = self.env.env or None
-	if kw.get('pkg_config_path'):
-		if not env:
-			env = dict(self.environ)
-		env['PKG_CONFIG_PATH'] = kw['pkg_config_path']
-
-	def define_it():
-		define_name = kw['define_name']
-		# by default, add HAVE_X to the config.h, else provide DEFINES_X for use=X
-		if kw.get('global_define', 1):
-			self.define(define_name, 1, False)
-		else:
-			self.env.append_unique('DEFINES_%s' % kw['uselib_store'], "%s=1" % define_name)
-
-		if kw.get('add_have_to_env', 1):
-			self.env[define_name] = 1
-
-	# pkg-config version
-	if 'atleast_pkgconfig_version' in kw:
-		cmd = path + ['--atleast-pkgconfig-version=%s' % kw['atleast_pkgconfig_version']]
-		self.cmd_and_log(cmd, env=env)
-		return
-
-	# single version for a module
-	if 'modversion' in kw:
-		version = self.cmd_and_log(path + ['--modversion', kw['modversion']], env=env).strip()
-		if not 'okmsg' in kw:
-			kw['okmsg'] = version
-		self.define(kw['define_name'], version)
-		return version
-
-	lst = [] + path
-
-	defi = kw.get('define_variable')
-	if not defi:
-		defi = self.env.PKG_CONFIG_DEFINES or {}
-	for key, val in defi.items():
-		lst.append('--define-variable=%s=%s' % (key, val))
-
-	static = kw.get('force_static', False)
-	if 'args' in kw:
-		args = Utils.to_list(kw['args'])
-		if '--static' in args or '--static-libs' in args:
-			static = True
-		lst += args
-
-	# tools like pkgconf expect the package argument after the -- ones -_-
-	lst.extend(Utils.to_list(kw['package']))
-
-	# retrieving variables of a module
-	if 'variables' in kw:
-		v_env = kw.get('env', self.env)
-		vars = Utils.to_list(kw['variables'])
-		for v in vars:
-			val = self.cmd_and_log(lst + ['--variable=' + v], env=env).strip()
-			var = '%s_%s' % (kw['uselib_store'], v)
-			v_env[var] = val
-		return
-
-	# so we assume the command-line will output flags to be parsed afterwards
-	ret = self.cmd_and_log(lst, env=env)
-
-	define_it()
-	self.parse_flags(ret, kw['uselib_store'], kw.get('env', self.env), force_static=static, posix=kw.get('posix'))
-	return ret
-
-@conf
-def check_cfg(self, *k, **kw):
-	"""
-	Checks for configuration flags using a **-config**-like program (pkg-config, sdl-config, etc).
-	This wraps internal calls to :py:func:`waflib.Tools.c_config.validate_cfg` and :py:func:`waflib.Tools.c_config.exec_cfg`
-
-	A few examples::
-
-		def configure(conf):
-			conf.load('compiler_c')
-			conf.check_cfg(package='glib-2.0', args='--libs --cflags')
-			conf.check_cfg(package='pango')
-			conf.check_cfg(package='pango', uselib_store='MYPANGO', args=['--cflags', '--libs'])
-			conf.check_cfg(package='pango',
-				args=['pango >= 0.1.0', 'pango < 9.9.9', '--cflags', '--libs'],
-				msg="Checking for 'pango 0.1.0'")
-			conf.check_cfg(path='sdl-config', args='--cflags --libs', package='', uselib_store='SDL')
-			conf.check_cfg(path='mpicc', args='--showme:compile --showme:link',
-				package='', uselib_store='OPEN_MPI', mandatory=False)
-			# variables
-			conf.check_cfg(package='gtk+-2.0', variables=['includedir', 'prefix'], uselib_store='FOO')
-			print(conf.env.FOO_includedir)
-	"""
-	self.validate_cfg(kw)
-	if 'msg' in kw:
-		self.start_msg(kw['msg'], **kw)
-	ret = None
-	try:
-		ret = self.exec_cfg(kw)
-	except self.errors.WafError as e:
-		if 'errmsg' in kw:
-			self.end_msg(kw['errmsg'], 'YELLOW', **kw)
-		if Logs.verbose > 1:
-			self.to_log('Command failure: %s' % e)
-		self.fatal('The configuration failed')
-	else:
-		if not ret:
-			ret = True
-		kw['success'] = ret
-		if 'okmsg' in kw:
-			self.end_msg(self.ret_msg(kw['okmsg'], kw), **kw)
-
-	return ret
-
-def build_fun(bld):
-	"""
-	Build function that is used for running configuration tests with ``conf.check()``
-	"""
-	if bld.kw['compile_filename']:
-		node = bld.srcnode.make_node(bld.kw['compile_filename'])
-		node.write(bld.kw['code'])
-
-	o = bld(features=bld.kw['features'], source=bld.kw['compile_filename'], target='testprog')
-
-	for k, v in bld.kw.items():
-		setattr(o, k, v)
-
-	if not bld.kw.get('quiet'):
-		bld.conf.to_log("==>\n%s\n<==" % bld.kw['code'])
-
-@conf
-def validate_c(self, kw):
-	"""
-	Pre-checks the parameters that will be given to :py:func:`waflib.Configure.run_build`
-
-	:param compiler: c or cxx (tries to guess what is best)
-	:type compiler: string
-	:param type: cprogram, cshlib, cstlib - not required if *features are given directly*
-	:type type: binary to create
-	:param feature: desired features for the task generator that will execute the test, for example ``cxx cxxstlib``
-	:type feature: list of string
-	:param fragment: provide a piece of code for the test (default is to let the system create one)
-	:type fragment: string
-	:param uselib_store: define variables after the test is executed (IMPORTANT!)
-	:type uselib_store: string
-	:param use: parameters to use for building (just like the normal *use* keyword)
-	:type use: list of string
-	:param define_name: define to set when the check is over
-	:type define_name: string
-	:param execute: execute the resulting binary
-	:type execute: bool
-	:param define_ret: if execute is set to True, use the execution output in both the define and the return value
-	:type define_ret: bool
-	:param header_name: check for a particular header
-	:type header_name: string
-	:param auto_add_header_name: if header_name was set, add the headers in env.INCKEYS so the next tests will include these headers
-	:type auto_add_header_name: bool
-	"""
-	for x in ('type_name', 'field_name', 'function_name'):
-		if x in kw:
-			Logs.warn('Invalid argument %r in test' % x)
-
-	if not 'build_fun' in kw:
-		kw['build_fun'] = build_fun
-
-	if not 'env' in kw:
-		kw['env'] = self.env.derive()
-	env = kw['env']
-
-	if not 'compiler' in kw and not 'features' in kw:
-		kw['compiler'] = 'c'
-		if env.CXX_NAME and Task.classes.get('cxx'):
-			kw['compiler'] = 'cxx'
-			if not self.env.CXX:
-				self.fatal('a c++ compiler is required')
-		else:
-			if not self.env.CC:
-				self.fatal('a c compiler is required')
-
-	if not 'compile_mode' in kw:
-		kw['compile_mode'] = 'c'
-		if 'cxx' in Utils.to_list(kw.get('features', [])) or kw.get('compiler') == 'cxx':
-			kw['compile_mode'] = 'cxx'
-
-	if not 'type' in kw:
-		kw['type'] = 'cprogram'
-
-	if not 'features' in kw:
-		if not 'header_name' in kw or kw.get('link_header_test', True):
-			kw['features'] = [kw['compile_mode'], kw['type']] # "c ccprogram"
-		else:
-			kw['features'] = [kw['compile_mode']]
-	else:
-		kw['features'] = Utils.to_list(kw['features'])
-
-	if not 'compile_filename' in kw:
-		kw['compile_filename'] = 'test.c' + ((kw['compile_mode'] == 'cxx') and 'pp' or '')
-
-	def to_header(dct):
-		if 'header_name' in dct:
-			dct = Utils.to_list(dct['header_name'])
-			return ''.join(['#include <%s>\n' % x for x in dct])
-		return ''
-
-	if 'framework_name' in kw:
-		# OSX, not sure this is used anywhere
-		fwkname = kw['framework_name']
-		if not 'uselib_store' in kw:
-			kw['uselib_store'] = fwkname.upper()
-		if not kw.get('no_header'):
-			fwk = '%s/%s.h' % (fwkname, fwkname)
-			if kw.get('remove_dot_h'):
-				fwk = fwk[:-2]
-			val = kw.get('header_name', [])
-			kw['header_name'] = Utils.to_list(val) + [fwk]
-		kw['msg'] = 'Checking for framework %s' % fwkname
-		kw['framework'] = fwkname
-
-	elif 'header_name' in kw:
-		if not 'msg' in kw:
-			kw['msg'] = 'Checking for header %s' % kw['header_name']
-
-		l = Utils.to_list(kw['header_name'])
-		assert len(l), 'list of headers in header_name is empty'
-
-		kw['code'] = to_header(kw) + SNIP_EMPTY_PROGRAM
-		if not 'uselib_store' in kw:
-			kw['uselib_store'] = l[0].upper()
-		if not 'define_name' in kw:
-			kw['define_name'] = self.have_define(l[0])
-
-	if 'lib' in kw:
-		if not 'msg' in kw:
-			kw['msg'] = 'Checking for library %s' % kw['lib']
-		if not 'uselib_store' in kw:
-			kw['uselib_store'] = kw['lib'].upper()
-
-	if 'stlib' in kw:
-		if not 'msg' in kw:
-			kw['msg'] = 'Checking for static library %s' % kw['stlib']
-		if not 'uselib_store' in kw:
-			kw['uselib_store'] = kw['stlib'].upper()
-
-	if 'fragment' in kw:
-		# an additional code fragment may be provided to replace the predefined code
-		# in custom headers
-		kw['code'] = kw['fragment']
-		if not 'msg' in kw:
-			kw['msg'] = 'Checking for code snippet'
-		if not 'errmsg' in kw:
-			kw['errmsg'] = 'no'
-
-	for (flagsname,flagstype) in (('cxxflags','compiler'), ('cflags','compiler'), ('linkflags','linker')):
-		if flagsname in kw:
-			if not 'msg' in kw:
-				kw['msg'] = 'Checking for %s flags %s' % (flagstype, kw[flagsname])
-			if not 'errmsg' in kw:
-				kw['errmsg'] = 'no'
-
-	if not 'execute' in kw:
-		kw['execute'] = False
-	if kw['execute']:
-		kw['features'].append('test_exec')
-		kw['chmod'] = Utils.O755
-
-	if not 'errmsg' in kw:
-		kw['errmsg'] = 'not found'
-
-	if not 'okmsg' in kw:
-		kw['okmsg'] = 'yes'
-
-	if not 'code' in kw:
-		kw['code'] = SNIP_EMPTY_PROGRAM
-
-	# if there are headers to append automatically to the next tests
-	if self.env[INCKEYS]:
-		kw['code'] = '\n'.join(['#include <%s>' % x for x in self.env[INCKEYS]]) + '\n' + kw['code']
-
-	# in case defines lead to very long command-lines
-	if kw.get('merge_config_header') or env.merge_config_header:
-		kw['code'] = '%s\n\n%s' % (self.get_config_header(), kw['code'])
-		env.DEFINES = [] # modify the copy
-
-	if not kw.get('success'):
-		kw['success'] = None
-
-	if 'define_name' in kw:
-		self.undefine(kw['define_name'])
-	if not 'msg' in kw:
-		self.fatal('missing "msg" in conf.check(...)')
-
-@conf
-def post_check(self, *k, **kw):
-	"""
-	Sets the variables after a test executed in
-	:py:func:`waflib.Tools.c_config.check` was run successfully
-	"""
-	is_success = 0
-	if kw['execute']:
-		if kw['success'] is not None:
-			if kw.get('define_ret'):
-				is_success = kw['success']
-			else:
-				is_success = (kw['success'] == 0)
-	else:
-		is_success = (kw['success'] == 0)
-
-	if kw.get('define_name'):
-		comment = kw.get('comment', '')
-		define_name = kw['define_name']
-		if kw['execute'] and kw.get('define_ret') and isinstance(is_success, str):
-			if kw.get('global_define', 1):
-				self.define(define_name, is_success, quote=kw.get('quote', 1), comment=comment)
-			else:
-				if kw.get('quote', 1):
-					succ = '"%s"' % is_success
-				else:
-					succ = int(is_success)
-				val = '%s=%s' % (define_name, succ)
-				var = 'DEFINES_%s' % kw['uselib_store']
-				self.env.append_value(var, val)
-		else:
-			if kw.get('global_define', 1):
-				self.define_cond(define_name, is_success, comment=comment)
-			else:
-				var = 'DEFINES_%s' % kw['uselib_store']
-				self.env.append_value(var, '%s=%s' % (define_name, int(is_success)))
-
-		# define conf.env.HAVE_X to 1
-		if kw.get('add_have_to_env', 1):
-			if kw.get('uselib_store'):
-				self.env[self.have_define(kw['uselib_store'])] = 1
-			elif kw['execute'] and kw.get('define_ret'):
-				self.env[define_name] = is_success
-			else:
-				self.env[define_name] = int(is_success)
-
-	if 'header_name' in kw:
-		if kw.get('auto_add_header_name'):
-			self.env.append_value(INCKEYS, Utils.to_list(kw['header_name']))
-
-	if is_success and 'uselib_store' in kw:
-		from waflib.Tools import ccroot
-		# See get_uselib_vars in ccroot.py
-		_vars = set()
-		for x in kw['features']:
-			if x in ccroot.USELIB_VARS:
-				_vars |= ccroot.USELIB_VARS[x]
-
-		for k in _vars:
-			x = k.lower()
-			if x in kw:
-				self.env.append_value(k + '_' + kw['uselib_store'], kw[x])
-	return is_success
-
-@conf
-def check(self, *k, **kw):
-	"""
-	Performs a configuration test by calling :py:func:`waflib.Configure.run_build`.
-	For the complete list of parameters, see :py:func:`waflib.Tools.c_config.validate_c`.
-	To force a specific compiler, pass ``compiler='c'`` or ``compiler='cxx'`` to the list of arguments
-
-	Besides build targets, complete builds can be given through a build function. All files will
-	be written to a temporary directory::
-
-		def build(bld):
-			lib_node = bld.srcnode.make_node('libdir/liblc1.c')
-			lib_node.parent.mkdir()
-			lib_node.write('#include <stdio.h>\\nint lib_func(void) { FILE *f = fopen("foo", "r");}\\n', 'w')
-			bld(features='c cshlib', source=[lib_node], linkflags=conf.env.EXTRA_LDFLAGS, target='liblc')
-		conf.check(build_fun=build, msg=msg)
-	"""
-	self.validate_c(kw)
-	self.start_msg(kw['msg'], **kw)
-	ret = None
-	try:
-		ret = self.run_build(*k, **kw)
-	except self.errors.ConfigurationError:
-		self.end_msg(kw['errmsg'], 'YELLOW', **kw)
-		if Logs.verbose > 1:
-			raise
-		else:
-			self.fatal('The configuration failed')
-	else:
-		kw['success'] = ret
-
-	ret = self.post_check(*k, **kw)
-	if not ret:
-		self.end_msg(kw['errmsg'], 'YELLOW', **kw)
-		self.fatal('The configuration failed %r' % ret)
-	else:
-		self.end_msg(self.ret_msg(kw['okmsg'], kw), **kw)
-	return ret
-
-class test_exec(Task.Task):
-	"""
-	A task that runs programs after they are built. See :py:func:`waflib.Tools.c_config.test_exec_fun`.
-	"""
-	color = 'PINK'
-	def run(self):
-		if getattr(self.generator, 'rpath', None):
-			if getattr(self.generator, 'define_ret', False):
-				self.generator.bld.retval = self.generator.bld.cmd_and_log([self.inputs[0].abspath()])
-			else:
-				self.generator.bld.retval = self.generator.bld.exec_command([self.inputs[0].abspath()])
-		else:
-			env = self.env.env or {}
-			env.update(dict(os.environ))
-			for var in ('LD_LIBRARY_PATH', 'DYLD_LIBRARY_PATH', 'PATH'):
-				env[var] = self.inputs[0].parent.abspath() + os.path.pathsep + env.get(var, '')
-			if getattr(self.generator, 'define_ret', False):
-				self.generator.bld.retval = self.generator.bld.cmd_and_log([self.inputs[0].abspath()], env=env)
-			else:
-				self.generator.bld.retval = self.generator.bld.exec_command([self.inputs[0].abspath()], env=env)
-
-@feature('test_exec')
-@after_method('apply_link')
-def test_exec_fun(self):
-	"""
-	The feature **test_exec** is used to create a task that will to execute the binary
-	created (link task output) during the build. The exit status will be set
-	on the build context, so only one program may have the feature *test_exec*.
-	This is used by configuration tests::
-
-		def configure(conf):
-			conf.check(execute=True)
-	"""
-	self.create_task('test_exec', self.link_task.outputs[0])
-
-@conf
-def check_cxx(self, *k, **kw):
-	"""
-	Runs a test with a task generator of the form::
-
-		conf.check(features='cxx cxxprogram', ...)
-	"""
-	kw['compiler'] = 'cxx'
-	return self.check(*k, **kw)
-
-@conf
-def check_cc(self, *k, **kw):
-	"""
-	Runs a test with a task generator of the form::
-
-		conf.check(features='c cprogram', ...)
-	"""
-	kw['compiler'] = 'c'
-	return self.check(*k, **kw)
-
-@conf
-def set_define_comment(self, key, comment):
-	"""
-	Sets a comment that will appear in the configuration header
-
-	:type key: string
-	:type comment: string
-	"""
-	coms = self.env.DEFINE_COMMENTS
-	if not coms:
-		coms = self.env.DEFINE_COMMENTS = {}
-	coms[key] = comment or ''
-
-@conf
-def get_define_comment(self, key):
-	"""
-	Returns the comment associated to a define
-
-	:type key: string
-	"""
-	coms = self.env.DEFINE_COMMENTS or {}
-	return coms.get(key, '')
-
-@conf
-def define(self, key, val, quote=True, comment=''):
-	"""
-	Stores a single define and its state into ``conf.env.DEFINES``. The value is cast to an integer (0/1).
-
-	:param key: define name
-	:type key: string
-	:param val: value
-	:type val: int or string
-	:param quote: enclose strings in quotes (yes by default)
-	:type quote: bool
-	"""
-	assert isinstance(key, str)
-	if not key:
-		return
-	if val is True:
-		val = 1
-	elif val in (False, None):
-		val = 0
-
-	if isinstance(val, int) or isinstance(val, float):
-		s = '%s=%s'
-	else:
-		s = quote and '%s="%s"' or '%s=%s'
-	app = s % (key, str(val))
-
-	ban = key + '='
-	lst = self.env.DEFINES
-	for x in lst:
-		if x.startswith(ban):
-			lst[lst.index(x)] = app
-			break
-	else:
-		self.env.append_value('DEFINES', app)
-
-	self.env.append_unique(DEFKEYS, key)
-	self.set_define_comment(key, comment)
-
-@conf
-def undefine(self, key, comment=''):
-	"""
-	Removes a global define from ``conf.env.DEFINES``
-
-	:param key: define name
-	:type key: string
-	"""
-	assert isinstance(key, str)
-	if not key:
-		return
-	ban = key + '='
-	lst = [x for x in self.env.DEFINES if not x.startswith(ban)]
-	self.env.DEFINES = lst
-	self.env.append_unique(DEFKEYS, key)
-	self.set_define_comment(key, comment)
-
-@conf
-def define_cond(self, key, val, comment=''):
-	"""
-	Conditionally defines a name::
-
-		def configure(conf):
-			conf.define_cond('A', True)
-			# equivalent to:
-			# if val: conf.define('A', 1)
-			# else: conf.undefine('A')
-
-	:param key: define name
-	:type key: string
-	:param val: value
-	:type val: int or string
-	"""
-	assert isinstance(key, str)
-	if not key:
-		return
-	if val:
-		self.define(key, 1, comment=comment)
-	else:
-		self.undefine(key, comment=comment)
-
-@conf
-def is_defined(self, key):
-	"""
-	Indicates whether a particular define is globally set in ``conf.env.DEFINES``.
-
-	:param key: define name
-	:type key: string
-	:return: True if the define is set
-	:rtype: bool
-	"""
-	assert key and isinstance(key, str)
-
-	ban = key + '='
-	for x in self.env.DEFINES:
-		if x.startswith(ban):
-			return True
-	return False
-
-@conf
-def get_define(self, key):
-	"""
-	Returns the value of an existing define, or None if not found
-
-	:param key: define name
-	:type key: string
-	:rtype: string
-	"""
-	assert key and isinstance(key, str)
-
-	ban = key + '='
-	for x in self.env.DEFINES:
-		if x.startswith(ban):
-			return x[len(ban):]
-	return None
-
-@conf
-def have_define(self, key):
-	"""
-	Returns a variable suitable for command-line or header use by removing invalid characters
-	and prefixing it with ``HAVE_``
-
-	:param key: define name
-	:type key: string
-	:return: the input key prefixed by *HAVE_* and substitute any invalid characters.
-	:rtype: string
-	"""
-	return (self.env.HAVE_PAT or 'HAVE_%s') % Utils.quote_define_name(key)
-
-@conf
-def write_config_header(self, configfile='', guard='', top=False, defines=True, headers=False, remove=True, define_prefix=''):
-	"""
-	Writes a configuration header containing defines and includes::
-
-		def configure(cnf):
-			cnf.define('A', 1)
-			cnf.write_config_header('config.h')
-
-	This function only adds include guards (if necessary), consult
-	:py:func:`waflib.Tools.c_config.get_config_header` for details on the body.
-
-	:param configfile: path to the file to create (relative or absolute)
-	:type configfile: string
-	:param guard: include guard name to add, by default it is computed from the file name
-	:type guard: string
-	:param top: write the configuration header from the build directory (default is from the current path)
-	:type top: bool
-	:param defines: add the defines (yes by default)
-	:type defines: bool
-	:param headers: add #include in the file
-	:type headers: bool
-	:param remove: remove the defines after they are added (yes by default, works like in autoconf)
-	:type remove: bool
-	:type define_prefix: string
-	:param define_prefix: prefix all the defines in the file with a particular prefix
-	"""
-	if not configfile:
-		configfile = WAF_CONFIG_H
-	waf_guard = guard or 'W_%s_WAF' % Utils.quote_define_name(configfile)
-
-	node = top and self.bldnode or self.path.get_bld()
-	node = node.make_node(configfile)
-	node.parent.mkdir()
-
-	lst = ['/* WARNING! All changes made to this file will be lost! */\n']
-	lst.append('#ifndef %s\n#define %s\n' % (waf_guard, waf_guard))
-	lst.append(self.get_config_header(defines, headers, define_prefix=define_prefix))
-	lst.append('\n#endif /* %s */\n' % waf_guard)
-
-	node.write('\n'.join(lst))
-
-	# config files must not be removed on "waf clean"
-	self.env.append_unique(Build.CFG_FILES, [node.abspath()])
-
-	if remove:
-		for key in self.env[DEFKEYS]:
-			self.undefine(key)
-		self.env[DEFKEYS] = []
-
-@conf
-def get_config_header(self, defines=True, headers=False, define_prefix=''):
-	"""
-	Creates the contents of a ``config.h`` file from the defines and includes
-	set in conf.env.define_key / conf.env.include_key. No include guards are added.
-
-	A prelude will be added from the variable env.WAF_CONFIG_H_PRELUDE if provided. This
-	can be used to insert complex macros or include guards::
-
-		def configure(conf):
-			conf.env.WAF_CONFIG_H_PRELUDE = '#include <unistd.h>\\n'
-			conf.write_config_header('config.h')
-
-	:param defines: write the defines values
-	:type defines: bool
-	:param headers: write include entries for each element in self.env.INCKEYS
-	:type headers: bool
-	:type define_prefix: string
-	:param define_prefix: prefix all the defines with a particular prefix
-	:return: the contents of a ``config.h`` file
-	:rtype: string
-	"""
-	lst = []
-
-	if self.env.WAF_CONFIG_H_PRELUDE:
-		lst.append(self.env.WAF_CONFIG_H_PRELUDE)
-
-	if headers:
-		for x in self.env[INCKEYS]:
-			lst.append('#include <%s>' % x)
-
-	if defines:
-		tbl = {}
-		for k in self.env.DEFINES:
-			a, _, b = k.partition('=')
-			tbl[a] = b
-
-		for k in self.env[DEFKEYS]:
-			caption = self.get_define_comment(k)
-			if caption:
-				caption = ' /* %s */' % caption
-			try:
-				txt = '#define %s%s %s%s' % (define_prefix, k, tbl[k], caption)
-			except KeyError:
-				txt = '/* #undef %s%s */%s' % (define_prefix, k, caption)
-			lst.append(txt)
-	return "\n".join(lst)
-
-@conf
-def cc_add_flags(conf):
-	"""
-	Adds CFLAGS / CPPFLAGS from os.environ to conf.env
-	"""
-	conf.add_os_flags('CPPFLAGS', dup=False)
-	conf.add_os_flags('CFLAGS', dup=False)
-
-@conf
-def cxx_add_flags(conf):
-	"""
-	Adds CXXFLAGS / CPPFLAGS from os.environ to conf.env
-	"""
-	conf.add_os_flags('CPPFLAGS', dup=False)
-	conf.add_os_flags('CXXFLAGS', dup=False)
-
-@conf
-def link_add_flags(conf):
-	"""
-	Adds LINKFLAGS / LDFLAGS from os.environ to conf.env
-	"""
-	conf.add_os_flags('LINKFLAGS', dup=False)
-	conf.add_os_flags('LDFLAGS', dup=False)
-
-@conf
-def cc_load_tools(conf):
-	"""
-	Loads the Waf c extensions
-	"""
-	if not conf.env.DEST_OS:
-		conf.env.DEST_OS = Utils.unversioned_sys_platform()
-	conf.load('c')
-
-@conf
-def cxx_load_tools(conf):
-	"""
-	Loads the Waf c++ extensions
-	"""
-	if not conf.env.DEST_OS:
-		conf.env.DEST_OS = Utils.unversioned_sys_platform()
-	conf.load('cxx')
-
-@conf
-def get_cc_version(conf, cc, gcc=False, icc=False, clang=False):
-	"""
-	Runs the preprocessor to determine the gcc/icc/clang version
-
-	The variables CC_VERSION, DEST_OS, DEST_BINFMT and DEST_CPU will be set in *conf.env*
-
-	:raise: :py:class:`waflib.Errors.ConfigurationError`
-	"""
-	cmd = cc + ['-dM', '-E', '-']
-	env = conf.env.env or None
-	try:
-		out, err = conf.cmd_and_log(cmd, output=0, input='\n'.encode(), env=env)
-	except Errors.WafError:
-		conf.fatal('Could not determine the compiler version %r' % cmd)
-
-	if gcc:
-		if out.find('__INTEL_COMPILER') >= 0:
-			conf.fatal('The intel compiler pretends to be gcc')
-		if out.find('__GNUC__') < 0 and out.find('__clang__') < 0:
-			conf.fatal('Could not determine the compiler type')
-
-	if icc and out.find('__INTEL_COMPILER') < 0:
-		conf.fatal('Not icc/icpc')
-
-	if clang and out.find('__clang__') < 0:
-		conf.fatal('Not clang/clang++')
-	if not clang and out.find('__clang__') >= 0:
-		conf.fatal('Could not find gcc/g++ (only Clang), if renamed try eg: CC=gcc48 CXX=g++48 waf configure')
-
-	k = {}
-	if icc or gcc or clang:
-		out = out.splitlines()
-		for line in out:
-			lst = shlex.split(line)
-			if len(lst)>2:
-				key = lst[1]
-				val = lst[2]
-				k[key] = val
-
-		def isD(var):
-			return var in k
-
-		# Some documentation is available at http://predef.sourceforge.net
-		# The names given to DEST_OS must match what Utils.unversioned_sys_platform() returns.
-		if not conf.env.DEST_OS:
-			conf.env.DEST_OS = ''
-		for i in MACRO_TO_DESTOS:
-			if isD(i):
-				conf.env.DEST_OS = MACRO_TO_DESTOS[i]
-				break
-		else:
-			if isD('__APPLE__') and isD('__MACH__'):
-				conf.env.DEST_OS = 'darwin'
-			elif isD('__unix__'): # unix must be tested last as it's a generic fallback
-				conf.env.DEST_OS = 'generic'
-
-		if isD('__ELF__'):
-			conf.env.DEST_BINFMT = 'elf'
-		elif isD('__WINNT__') or isD('__CYGWIN__') or isD('_WIN32'):
-			conf.env.DEST_BINFMT = 'pe'
-			if not conf.env.IMPLIBDIR:
-				conf.env.IMPLIBDIR = conf.env.LIBDIR # for .lib or .dll.a files
-			conf.env.LIBDIR = conf.env.BINDIR
-		elif isD('__APPLE__'):
-			conf.env.DEST_BINFMT = 'mac-o'
-
-		if not conf.env.DEST_BINFMT:
-			# Infer the binary format from the os name.
-			conf.env.DEST_BINFMT = Utils.destos_to_binfmt(conf.env.DEST_OS)
-
-		for i in MACRO_TO_DEST_CPU:
-			if isD(i):
-				conf.env.DEST_CPU = MACRO_TO_DEST_CPU[i]
-				break
-
-		Logs.debug('ccroot: dest platform: ' + ' '.join([conf.env[x] or '?' for x in ('DEST_OS', 'DEST_BINFMT', 'DEST_CPU')]))
-		if icc:
-			ver = k['__INTEL_COMPILER']
-			conf.env.CC_VERSION = (ver[:-2], ver[-2], ver[-1])
-		else:
-			if isD('__clang__') and isD('__clang_major__'):
-				conf.env.CC_VERSION = (k['__clang_major__'], k['__clang_minor__'], k['__clang_patchlevel__'])
-			else:
-				# older clang versions and gcc
-				conf.env.CC_VERSION = (k['__GNUC__'], k['__GNUC_MINOR__'], k.get('__GNUC_PATCHLEVEL__', '0'))
-	return k
-
-@conf
-def get_xlc_version(conf, cc):
-	"""
-	Returns the Aix compiler version
-
-	:raise: :py:class:`waflib.Errors.ConfigurationError`
-	"""
-	cmd = cc + ['-qversion']
-	try:
-		out, err = conf.cmd_and_log(cmd, output=0)
-	except Errors.WafError:
-		conf.fatal('Could not find xlc %r' % cmd)
-
-	# the intention is to catch the 8.0 in "IBM XL C/C++ Enterprise Edition V8.0 for AIX..."
-	for v in (r"IBM XL C/C\+\+.* V(?P<major>\d*)\.(?P<minor>\d*)",):
-		version_re = re.compile(v, re.I).search
-		match = version_re(out or err)
-		if match:
-			k = match.groupdict()
-			conf.env.CC_VERSION = (k['major'], k['minor'])
-			break
-	else:
-		conf.fatal('Could not determine the XLC version.')
-
-@conf
-def get_suncc_version(conf, cc):
-	"""
-	Returns the Sun compiler version
-
-	:raise: :py:class:`waflib.Errors.ConfigurationError`
-	"""
-	cmd = cc + ['-V']
-	try:
-		out, err = conf.cmd_and_log(cmd, output=0)
-	except Errors.WafError as e:
-		# Older versions of the compiler exit with non-zero status when reporting their version
-		if not (hasattr(e, 'returncode') and hasattr(e, 'stdout') and hasattr(e, 'stderr')):
-			conf.fatal('Could not find suncc %r' % cmd)
-		out = e.stdout
-		err = e.stderr
-
-	version = (out or err)
-	version = version.splitlines()[0]
-
-	# cc: Sun C 5.10 SunOS_i386 2009/06/03
-	# cc: Studio 12.5 Sun C++ 5.14 SunOS_sparc Beta 2015/11/17
-	# cc: WorkShop Compilers 5.0 98/12/15 C 5.0
-	version_re = re.compile(r'cc: (studio.*?|\s+)?(sun\s+(c\+\+|c)|(WorkShop\s+Compilers))?\s+(?P<major>\d*)\.(?P<minor>\d*)', re.I).search
-	match = version_re(version)
-	if match:
-		k = match.groupdict()
-		conf.env.CC_VERSION = (k['major'], k['minor'])
-	else:
-		conf.fatal('Could not determine the suncc version.')
-
-# ============ the --as-needed flag should added during the configuration, not at runtime =========
-
-@conf
-def add_as_needed(self):
-	"""
-	Adds ``--as-needed`` to the *LINKFLAGS*
-	On some platforms, it is a default flag.  In some cases (e.g., in NS-3) it is necessary to explicitly disable this feature with `-Wl,--no-as-needed` flag.
-	"""
-	if self.env.DEST_BINFMT == 'elf' and 'gcc' in (self.env.CXX_NAME, self.env.CC_NAME):
-		self.env.append_unique('LINKFLAGS', '-Wl,--as-needed')
-
-# ============ parallel configuration
-
-class cfgtask(Task.Task):
-	"""
-	A task that executes build configuration tests (calls conf.check)
-
-	Make sure to use locks if concurrent access to the same conf.env data is necessary.
-	"""
-	def __init__(self, *k, **kw):
-		Task.Task.__init__(self, *k, **kw)
-		self.run_after = set()
-
-	def display(self):
-		return ''
-
-	def runnable_status(self):
-		for x in self.run_after:
-			if not x.hasrun:
-				return Task.ASK_LATER
-		return Task.RUN_ME
-
-	def uid(self):
-		return Utils.SIG_NIL
-
-	def signature(self):
-		return Utils.SIG_NIL
-
-	def run(self):
-		conf = self.conf
-		bld = Build.BuildContext(top_dir=conf.srcnode.abspath(), out_dir=conf.bldnode.abspath())
-		bld.env = conf.env
-		bld.init_dirs()
-		bld.in_msg = 1 # suppress top-level start_msg
-		bld.logger = self.logger
-		bld.multicheck_task = self
-		args = self.args
-		try:
-			if 'func' in args:
-				bld.test(build_fun=args['func'],
-					msg=args.get('msg', ''),
-					okmsg=args.get('okmsg', ''),
-					errmsg=args.get('errmsg', ''),
-					)
-			else:
-				args['multicheck_mandatory'] = args.get('mandatory', True)
-				args['mandatory'] = True
-				try:
-					bld.check(**args)
-				finally:
-					args['mandatory'] = args['multicheck_mandatory']
-		except Exception:
-			return 1
-
-	def process(self):
-		Task.Task.process(self)
-		if 'msg' in self.args:
-			with self.generator.bld.multicheck_lock:
-				self.conf.start_msg(self.args['msg'])
-				if self.hasrun == Task.NOT_RUN:
-					self.conf.end_msg('test cancelled', 'YELLOW')
-				elif self.hasrun != Task.SUCCESS:
-					self.conf.end_msg(self.args.get('errmsg', 'no'), 'YELLOW')
-				else:
-					self.conf.end_msg(self.args.get('okmsg', 'yes'), 'GREEN')
-
-@conf
-def multicheck(self, *k, **kw):
-	"""
-	Runs configuration tests in parallel; results are printed sequentially at the end of the build
-	but each test must provide its own msg value to display a line::
-
-		def test_build(ctx):
-			ctx.in_msg = True # suppress console outputs
-			ctx.check_large_file(mandatory=False)
-
-		conf.multicheck(
-			{'header_name':'stdio.h', 'msg':'... stdio', 'uselib_store':'STDIO', 'global_define':False},
-			{'header_name':'xyztabcd.h', 'msg':'... optional xyztabcd.h', 'mandatory': False},
-			{'header_name':'stdlib.h', 'msg':'... stdlib', 'okmsg': 'aye', 'errmsg': 'nope'},
-			{'func': test_build, 'msg':'... testing an arbitrary build function', 'okmsg':'ok'},
-			msg       = 'Checking for headers in parallel',
-			mandatory = True, # mandatory tests raise an error at the end
-			run_all_tests = True, # try running all tests
-		)
-
-	The configuration tests may modify the values in conf.env in any order, and the define
-	values can affect configuration tests being executed. It is hence recommended
-	to provide `uselib_store` values with `global_define=False` to prevent such issues.
-	"""
-	self.start_msg(kw.get('msg', 'Executing %d configuration tests' % len(k)), **kw)
-
-	# Force a copy so that threads append to the same list at least
-	# no order is guaranteed, but the values should not disappear at least
-	for var in ('DEFINES', DEFKEYS):
-		self.env.append_value(var, [])
-	self.env.DEFINE_COMMENTS = self.env.DEFINE_COMMENTS or {}
-
-	# define a task object that will execute our tests
-	class par(object):
-		def __init__(self):
-			self.keep = False
-			self.task_sigs = {}
-			self.progress_bar = 0
-		def total(self):
-			return len(tasks)
-		def to_log(self, *k, **kw):
-			return
-
-	bld = par()
-	bld.keep = kw.get('run_all_tests', True)
-	bld.imp_sigs = {}
-	tasks = []
-
-	id_to_task = {}
-	for dct in k:
-		x = Task.classes['cfgtask'](bld=bld, env=None)
-		tasks.append(x)
-		x.args = dct
-		x.bld = bld
-		x.conf = self
-		x.args = dct
-
-		# bind a logger that will keep the info in memory
-		x.logger = Logs.make_mem_logger(str(id(x)), self.logger)
-
-		if 'id' in dct:
-			id_to_task[dct['id']] = x
-
-	# second pass to set dependencies with after_test/before_test
-	for x in tasks:
-		for key in Utils.to_list(x.args.get('before_tests', [])):
-			tsk = id_to_task[key]
-			if not tsk:
-				raise ValueError('No test named %r' % key)
-			tsk.run_after.add(x)
-		for key in Utils.to_list(x.args.get('after_tests', [])):
-			tsk = id_to_task[key]
-			if not tsk:
-				raise ValueError('No test named %r' % key)
-			x.run_after.add(tsk)
-
-	def it():
-		yield tasks
-		while 1:
-			yield []
-	bld.producer = p = Runner.Parallel(bld, Options.options.jobs)
-	bld.multicheck_lock = Utils.threading.Lock()
-	p.biter = it()
-
-	self.end_msg('started')
-	p.start()
-
-	# flush the logs in order into the config.log
-	for x in tasks:
-		x.logger.memhandler.flush()
-
-	self.start_msg('-> processing test results')
-	if p.error:
-		for x in p.error:
-			if getattr(x, 'err_msg', None):
-				self.to_log(x.err_msg)
-				self.end_msg('fail', color='RED')
-				raise Errors.WafError('There is an error in the library, read config.log for more information')
-
-	failure_count = 0
-	for x in tasks:
-		if x.hasrun not in (Task.SUCCESS, Task.NOT_RUN):
-			failure_count += 1
-
-	if failure_count:
-		self.end_msg(kw.get('errmsg', '%s test failed' % failure_count), color='YELLOW', **kw)
-	else:
-		self.end_msg('all ok', **kw)
-
-	for x in tasks:
-		if x.hasrun != Task.SUCCESS:
-			if x.args.get('mandatory', True):
-				self.fatal(kw.get('fatalmsg') or 'One of the tests has failed, read config.log for more information')
-
-@conf
-def check_gcc_o_space(self, mode='c'):
-	if int(self.env.CC_VERSION[0]) > 4:
-		# this is for old compilers
-		return
-	self.env.stash()
-	if mode == 'c':
-		self.env.CCLNK_TGT_F = ['-o', '']
-	elif mode == 'cxx':
-		self.env.CXXLNK_TGT_F = ['-o', '']
-	features = '%s %sshlib' % (mode, mode)
-	try:
-		self.check(msg='Checking if the -o link must be split from arguments', fragment=SNIP_EMPTY_PROGRAM, features=features)
-	except self.errors.ConfigurationError:
-		self.env.revert()
-	else:
-		self.env.commit()
-