Switch to using a submodule for autowaf

2 files changed, 0 insertions, 1029 deletions

diff --git a/waflib b/waflib
new file mode 160000
+Subproject 2314e236ca6e7d94a26c3c17091da0f25f5867f
diff --git a/waflib/Utils.py b/waflib/Utils.py
deleted file mode 100644
index 4b808a8..0000000
--- a/waflib/Utils.py
+++ /dev/null
@@ -1,1029 +0,0 @@
-#!/usr/bin/env python
-# encoding: utf-8
-# Thomas Nagy, 2005-2018 (ita)
-
-"""
-Utilities and platform-specific fixes
-
-The portability fixes try to provide a consistent behavior of the Waf API
-through Python versions 2.5 to 3.X and across different platforms (win32, linux, etc)
-"""
-
-from __future__ import with_statement
-
-import atexit, os, sys, errno, inspect, re, datetime, platform, base64, signal, functools, time
-
-try:
-	import cPickle
-except ImportError:
-	import pickle as cPickle
-
-# leave this
-if os.name == 'posix' and sys.version_info[0] < 3:
-	try:
-		import subprocess32 as subprocess
-	except ImportError:
-		import subprocess
-else:
-	import subprocess
-
-try:
-	TimeoutExpired = subprocess.TimeoutExpired
-except AttributeError:
-	class TimeoutExpired(Exception):
-		pass
-
-from collections import deque, defaultdict
-
-try:
-	import _winreg as winreg
-except ImportError:
-	try:
-		import winreg
-	except ImportError:
-		winreg = None
-
-from waflib import Errors
-
-try:
-	from hashlib import md5
-except ImportError:
-	try:
-		from hashlib import sha1 as md5
-	except ImportError:
-		# never fail to enable potential fixes from another module
-		pass
-else:
-	try:
-		md5().digest()
-	except ValueError:
-		# Fips? #2213
-		from hashlib import sha1 as md5
-
-try:
-	import threading
-except ImportError:
-	if not 'JOBS' in os.environ:
-		# no threading :-(
-		os.environ['JOBS'] = '1'
-
-	class threading(object):
-		"""
-		A fake threading class for platforms lacking the threading module.
-		Use ``waf -j1`` on those platforms
-		"""
-		pass
-	class Lock(object):
-		"""Fake Lock class"""
-		def acquire(self):
-			pass
-		def release(self):
-			pass
-	threading.Lock = threading.Thread = Lock
-
-SIG_NIL = 'SIG_NIL_SIG_NIL_'.encode()
-"""Arbitrary null value for hashes. Modify this value according to the hash function in use"""
-
-O644 = 420
-"""Constant representing the permissions for regular files (0644 raises a syntax error on python 3)"""
-
-O755 = 493
-"""Constant representing the permissions for executable files (0755 raises a syntax error on python 3)"""
-
-rot_chr = ['\\', '|', '/', '-']
-"List of characters to use when displaying the throbber (progress bar)"
-
-rot_idx = 0
-"Index of the current throbber character (progress bar)"
-
-class ordered_iter_dict(dict):
-	"""Ordered dictionary that provides iteration from the most recently inserted keys first"""
-	def __init__(self, *k, **kw):
-		self.lst = deque()
-		dict.__init__(self, *k, **kw)
-	def clear(self):
-		dict.clear(self)
-		self.lst = deque()
-	def __setitem__(self, key, value):
-		if key in dict.keys(self):
-			self.lst.remove(key)
-		dict.__setitem__(self, key, value)
-		self.lst.append(key)
-	def __delitem__(self, key):
-		dict.__delitem__(self, key)
-		try:
-			self.lst.remove(key)
-		except ValueError:
-			pass
-	def __iter__(self):
-		return reversed(self.lst)
-	def keys(self):
-		return reversed(self.lst)
-
-class lru_node(object):
-	"""
-	Used by :py:class:`waflib.Utils.lru_cache`
-	"""
-	__slots__ = ('next', 'prev', 'key', 'val')
-	def __init__(self):
-		self.next = self
-		self.prev = self
-		self.key = None
-		self.val = None
-
-class lru_cache(object):
-	"""
-	A simple least-recently used cache with lazy allocation
-	"""
-	__slots__ = ('maxlen', 'table', 'head')
-	def __init__(self, maxlen=100):
-		self.maxlen = maxlen
-		"""
-		Maximum amount of elements in the cache
-		"""
-		self.table = {}
-		"""
-		Mapping key-value
-		"""
-		self.head = lru_node()
-		self.head.next = self.head
-		self.head.prev = self.head
-
-	def __getitem__(self, key):
-		node = self.table[key]
-		# assert(key==node.key)
-		if node is self.head:
-			return node.val
-
-		# detach the node found
-		node.prev.next = node.next
-		node.next.prev = node.prev
-
-		# replace the head
-		node.next = self.head.next
-		node.prev = self.head
-		self.head = node.next.prev = node.prev.next = node
-
-		return node.val
-
-	def __setitem__(self, key, val):
-		if key in self.table:
-			# update the value for an existing key
-			node = self.table[key]
-			node.val = val
-			self.__getitem__(key)
-		else:
-			if len(self.table) < self.maxlen:
-				# the very first item is unused until the maximum is reached
-				node = lru_node()
-				node.prev = self.head
-				node.next = self.head.next
-				node.prev.next = node.next.prev = node
-			else:
-				node = self.head = self.head.next
-				try:
-					# that's another key
-					del self.table[node.key]
-				except KeyError:
-					pass
-
-			node.key = key
-			node.val = val
-			self.table[key] = node
-
-class lazy_generator(object):
-	def __init__(self, fun, params):
-		self.fun = fun
-		self.params = params
-
-	def __iter__(self):
-		return self
-
-	def __next__(self):
-		try:
-			it = self.it
-		except AttributeError:
-			it = self.it = self.fun(*self.params)
-		return next(it)
-
-	next = __next__
-
-is_win32 = os.sep == '\\' or sys.platform == 'win32' or os.name == 'nt' # msys2
-"""
-Whether this system is a Windows series
-"""
-
-def readf(fname, m='r', encoding='latin-1'):
-	"""
-	Reads an entire file into a string. See also :py:meth:`waflib.Node.Node.readf`::
-
-		def build(ctx):
-			from waflib import Utils
-			txt = Utils.readf(self.path.find_node('wscript').abspath())
-			txt = ctx.path.find_node('wscript').read()
-
-	:type  fname: string
-	:param fname: Path to file
-	:type  m: string
-	:param m: Open mode
-	:type encoding: string
-	:param encoding: encoding value, only used for python 3
-	:rtype: string
-	:return: Content of the file
-	"""
-
-	if sys.hexversion > 0x3000000 and not 'b' in m:
-		m += 'b'
-		with open(fname, m) as f:
-			txt = f.read()
-		if encoding:
-			txt = txt.decode(encoding)
-		else:
-			txt = txt.decode()
-	else:
-		with open(fname, m) as f:
-			txt = f.read()
-	return txt
-
-def writef(fname, data, m='w', encoding='latin-1'):
-	"""
-	Writes an entire file from a string.
-	See also :py:meth:`waflib.Node.Node.writef`::
-
-		def build(ctx):
-			from waflib import Utils
-			txt = Utils.writef(self.path.make_node('i_like_kittens').abspath(), 'some data')
-			self.path.make_node('i_like_kittens').write('some data')
-
-	:type  fname: string
-	:param fname: Path to file
-	:type   data: string
-	:param  data: The contents to write to the file
-	:type  m: string
-	:param m: Open mode
-	:type encoding: string
-	:param encoding: encoding value, only used for python 3
-	"""
-	if sys.hexversion > 0x3000000 and not 'b' in m:
-		data = data.encode(encoding)
-		m += 'b'
-	with open(fname, m) as f:
-		f.write(data)
-
-def h_file(fname):
-	"""
-	Computes a hash value for a file by using md5. Use the md5_tstamp
-	extension to get faster build hashes if necessary.
-
-	:type fname: string
-	:param fname: path to the file to hash
-	:return: hash of the file contents
-	:rtype: string or bytes
-	"""
-	m = md5()
-	with open(fname, 'rb') as f:
-		while fname:
-			fname = f.read(200000)
-			m.update(fname)
-	return m.digest()
-
-def readf_win32(f, m='r', encoding='latin-1'):
-	flags = os.O_NOINHERIT | os.O_RDONLY
-	if 'b' in m:
-		flags |= os.O_BINARY
-	if '+' in m:
-		flags |= os.O_RDWR
-	try:
-		fd = os.open(f, flags)
-	except OSError:
-		raise IOError('Cannot read from %r' % f)
-
-	if sys.hexversion > 0x3000000 and not 'b' in m:
-		m += 'b'
-		with os.fdopen(fd, m) as f:
-			txt = f.read()
-		if encoding:
-			txt = txt.decode(encoding)
-		else:
-			txt = txt.decode()
-	else:
-		with os.fdopen(fd, m) as f:
-			txt = f.read()
-	return txt
-
-def writef_win32(f, data, m='w', encoding='latin-1'):
-	if sys.hexversion > 0x3000000 and not 'b' in m:
-		data = data.encode(encoding)
-		m += 'b'
-	flags = os.O_CREAT | os.O_TRUNC | os.O_WRONLY | os.O_NOINHERIT
-	if 'b' in m:
-		flags |= os.O_BINARY
-	if '+' in m:
-		flags |= os.O_RDWR
-	try:
-		fd = os.open(f, flags)
-	except OSError:
-		raise OSError('Cannot write to %r' % f)
-	with os.fdopen(fd, m) as f:
-		f.write(data)
-
-def h_file_win32(fname):
-	try:
-		fd = os.open(fname, os.O_BINARY | os.O_RDONLY | os.O_NOINHERIT)
-	except OSError:
-		raise OSError('Cannot read from %r' % fname)
-	m = md5()
-	with os.fdopen(fd, 'rb') as f:
-		while fname:
-			fname = f.read(200000)
-			m.update(fname)
-	return m.digest()
-
-# always save these
-readf_unix = readf
-writef_unix = writef
-h_file_unix = h_file
-if hasattr(os, 'O_NOINHERIT') and sys.hexversion < 0x3040000:
-	# replace the default functions
-	readf = readf_win32
-	writef = writef_win32
-	h_file = h_file_win32
-
-try:
-	x = ''.encode('hex')
-except LookupError:
-	import binascii
-	def to_hex(s):
-		ret = binascii.hexlify(s)
-		if not isinstance(ret, str):
-			ret = ret.decode('utf-8')
-		return ret
-else:
-	def to_hex(s):
-		return s.encode('hex')
-
-to_hex.__doc__ = """
-Return the hexadecimal representation of a string
-
-:param s: string to convert
-:type s: string
-"""
-
-def listdir_win32(s):
-	"""
-	Lists the contents of a folder in a portable manner.
-	On Win32, returns the list of drive letters: ['C:', 'X:', 'Z:'] when an empty string is given.
-
-	:type s: string
-	:param s: a string, which can be empty on Windows
-	"""
-	if not s:
-		try:
-			import ctypes
-		except ImportError:
-			# there is nothing much we can do
-			return [x + ':\\' for x in 'ABCDEFGHIJKLMNOPQRSTUVWXYZ']
-		else:
-			dlen = 4 # length of "?:\\x00"
-			maxdrives = 26
-			buf = ctypes.create_string_buffer(maxdrives * dlen)
-			ndrives = ctypes.windll.kernel32.GetLogicalDriveStringsA(maxdrives*dlen, ctypes.byref(buf))
-			return [ str(buf.raw[4*i:4*i+2].decode('ascii')) for i in range(int(ndrives/dlen)) ]
-
-	if len(s) == 2 and s[1] == ":":
-		s += os.sep
-
-	if not os.path.isdir(s):
-		e = OSError('%s is not a directory' % s)
-		e.errno = errno.ENOENT
-		raise e
-	return os.listdir(s)
-
-listdir = os.listdir
-if is_win32:
-	listdir = listdir_win32
-
-def num2ver(ver):
-	"""
-	Converts a string, tuple or version number into an integer. The number is supposed to have at most 4 digits::
-
-		from waflib.Utils import num2ver
-		num2ver('1.3.2') == num2ver((1,3,2)) == num2ver((1,3,2,0))
-
-	:type ver: string or tuple of numbers
-	:param ver: a version number
-	"""
-	if isinstance(ver, str):
-		ver = tuple(ver.split('.'))
-	if isinstance(ver, tuple):
-		ret = 0
-		for i in range(4):
-			if i < len(ver):
-				ret += 256**(3 - i) * int(ver[i])
-		return ret
-	return ver
-
-def to_list(val):
-	"""
-	Converts a string argument to a list by splitting it by spaces.
-	Returns the object if not a string::
-
-		from waflib.Utils import to_list
-		lst = to_list('a b c d')
-
-	:param val: list of string or space-separated string
-	:rtype: list
-	:return: Argument converted to list
-	"""
-	if isinstance(val, str):
-		return val.split()
-	else:
-		return val
-
-def console_encoding():
-	try:
-		import ctypes
-	except ImportError:
-		pass
-	else:
-		try:
-			codepage = ctypes.windll.kernel32.GetConsoleCP()
-		except AttributeError:
-			pass
-		else:
-			if codepage:
-				return 'cp%d' % codepage
-	return sys.stdout.encoding or ('cp1252' if is_win32 else 'latin-1')
-
-def split_path_unix(path):
-	return path.split('/')
-
-def split_path_cygwin(path):
-	if path.startswith('//'):
-		ret = path.split('/')[2:]
-		ret[0] = '/' + ret[0]
-		return ret
-	return path.split('/')
-
-re_sp = re.compile('[/\\\\]+')
-def split_path_win32(path):
-	if path.startswith('\\\\'):
-		ret = re_sp.split(path)[1:]
-		ret[0] = '\\\\' + ret[0]
-		if ret[0] == '\\\\?':
-			return ret[1:]
-		return ret
-	return re_sp.split(path)
-
-msysroot = None
-def split_path_msys(path):
-	if path.startswith(('/', '\\')) and not path.startswith(('//', '\\\\')):
-		# msys paths can be in the form /usr/bin
-		global msysroot
-		if not msysroot:
-			# msys has python 2.7 or 3, so we can use this
-			msysroot = subprocess.check_output(['cygpath', '-w', '/']).decode(sys.stdout.encoding or 'latin-1')
-			msysroot = msysroot.strip()
-		path = os.path.normpath(msysroot + os.sep + path)
-	return split_path_win32(path)
-
-if sys.platform == 'cygwin':
-	split_path = split_path_cygwin
-elif is_win32:
-	# Consider this an MSYSTEM environment if $MSYSTEM is set and python
-	# reports is executable from a unix like path on a windows host.
-	if os.environ.get('MSYSTEM') and sys.executable.startswith('/'):
-		split_path = split_path_msys
-	else:
-		split_path = split_path_win32
-else:
-	split_path = split_path_unix
-
-split_path.__doc__ = """
-Splits a path by / or \\; do not confuse this function with with ``os.path.split``
-
-:type  path: string
-:param path: path to split
-:return:     list of string
-"""
-
-def check_dir(path):
-	"""
-	Ensures that a directory exists (similar to ``mkdir -p``).
-
-	:type  path: string
-	:param path: Path to directory
-	:raises: :py:class:`waflib.Errors.WafError` if the folder cannot be added.
-	"""
-	if not os.path.isdir(path):
-		try:
-			os.makedirs(path)
-		except OSError as e:
-			if not os.path.isdir(path):
-				raise Errors.WafError('Cannot create the folder %r' % path, ex=e)
-
-def check_exe(name, env=None):
-	"""
-	Ensures that a program exists
-
-	:type name: string
-	:param name: path to the program
-	:param env: configuration object
-	:type env: :py:class:`waflib.ConfigSet.ConfigSet`
-	:return: path of the program or None
-	:raises: :py:class:`waflib.Errors.WafError` if the folder cannot be added.
-	"""
-	if not name:
-		raise ValueError('Cannot execute an empty string!')
-	def is_exe(fpath):
-		return os.path.isfile(fpath) and os.access(fpath, os.X_OK)
-
-	fpath, fname = os.path.split(name)
-	if fpath and is_exe(name):
-		return os.path.abspath(name)
-	else:
-		env = env or os.environ
-		for path in env['PATH'].split(os.pathsep):
-			path = path.strip('"')
-			exe_file = os.path.join(path, name)
-			if is_exe(exe_file):
-				return os.path.abspath(exe_file)
-	return None
-
-def def_attrs(cls, **kw):
-	"""
-	Sets default attributes on a class instance
-
-	:type cls: class
-	:param cls: the class to update the given attributes in.
-	:type kw: dict
-	:param kw: dictionary of attributes names and values.
-	"""
-	for k, v in kw.items():
-		if not hasattr(cls, k):
-			setattr(cls, k, v)
-
-def quote_define_name(s):
-	"""
-	Converts a string into an identifier suitable for C defines.
-
-	:type  s: string
-	:param s: String to convert
-	:rtype: string
-	:return: Identifier suitable for C defines
-	"""
-	fu = re.sub('[^a-zA-Z0-9]', '_', s)
-	fu = re.sub('_+', '_', fu)
-	fu = fu.upper()
-	return fu
-
-re_sh = re.compile('\\s|\'|"')
-"""
-Regexp used for shell_escape below
-"""
-
-def shell_escape(cmd):
-	"""
-	Escapes a command:
-	['ls', '-l', 'arg space'] -> ls -l 'arg space'
-	"""
-	if isinstance(cmd, str):
-		return cmd
-	return ' '.join(repr(x) if re_sh.search(x) else x for x in cmd)
-
-def h_list(lst):
-	"""
-	Hashes lists of ordered data.
-
-	Using hash(tup) for tuples would be much more efficient,
-	but Python now enforces hash randomization
-
-	:param lst: list to hash
-	:type lst: list of strings
-	:return: hash of the list
-	"""
-	return md5(repr(lst).encode()).digest()
-
-def h_fun(fun):
-	"""
-	Hash functions
-
-	:param fun: function to hash
-	:type  fun: function
-	:return: hash of the function
-	:rtype: string or bytes
-	"""
-	try:
-		return fun.code
-	except AttributeError:
-		if isinstance(fun, functools.partial):
-			code = list(fun.args)
-			# The method items() provides a sequence of tuples where the first element
-			# represents an optional argument of the partial function application
-			#
-			# The sorting result outcome will be consistent because:
-			# 1. tuples are compared in order of their elements
-			# 2. optional argument namess are unique
-			code.extend(sorted(fun.keywords.items()))
-			code.append(h_fun(fun.func))
-			fun.code = h_list(code)
-			return fun.code
-		try:
-			h = inspect.getsource(fun)
-		except EnvironmentError:
-			h = 'nocode'
-		try:
-			fun.code = h
-		except AttributeError:
-			pass
-		return h
-
-def h_cmd(ins):
-	"""
-	Hashes objects recursively
-
-	:param ins: input object
-	:type ins: string or list or tuple or function
-	:rtype: string or bytes
-	"""
-	# this function is not meant to be particularly fast
-	if isinstance(ins, str):
-		# a command is either a string
-		ret = ins
-	elif isinstance(ins, list) or isinstance(ins, tuple):
-		# or a list of functions/strings
-		ret = str([h_cmd(x) for x in ins])
-	else:
-		# or just a python function
-		ret = str(h_fun(ins))
-	if sys.hexversion > 0x3000000:
-		ret = ret.encode('latin-1', 'xmlcharrefreplace')
-	return ret
-
-reg_subst = re.compile(r"(\\\\)|(\$\$)|\$\{([^}]+)\}")
-def subst_vars(expr, params):
-	"""
-	Replaces ${VAR} with the value of VAR taken from a dict or a config set::
-
-		from waflib import Utils
-		s = Utils.subst_vars('${PREFIX}/bin', env)
-
-	:type  expr: string
-	:param expr: String to perform substitution on
-	:param params: Dictionary or config set to look up variable values.
-	"""
-	def repl_var(m):
-		if m.group(1):
-			return '\\'
-		if m.group(2):
-			return '$'
-		try:
-			# ConfigSet instances may contain lists
-			return params.get_flat(m.group(3))
-		except AttributeError:
-			return params[m.group(3)]
-		# if you get a TypeError, it means that 'expr' is not a string...
-		# Utils.subst_vars(None, env)  will not work
-	return reg_subst.sub(repl_var, expr)
-
-def destos_to_binfmt(key):
-	"""
-	Returns the binary format based on the unversioned platform name,
-	and defaults to ``elf`` if nothing is found.
-
-	:param key: platform name
-	:type  key: string
-	:return: string representing the binary format
-	"""
-	if key == 'darwin':
-		return 'mac-o'
-	elif key in ('win32', 'cygwin', 'uwin', 'msys'):
-		return 'pe'
-	return 'elf'
-
-def unversioned_sys_platform():
-	"""
-	Returns the unversioned platform name.
-	Some Python platform names contain versions, that depend on
-	the build environment, e.g. linux2, freebsd6, etc.
-	This returns the name without the version number. Exceptions are
-	os2 and win32, which are returned verbatim.
-
-	:rtype: string
-	:return: Unversioned platform name
-	"""
-	s = sys.platform
-	if s.startswith('java'):
-		# The real OS is hidden under the JVM.
-		from java.lang import System
-		s = System.getProperty('os.name')
-		# see http://lopica.sourceforge.net/os.html for a list of possible values
-		if s == 'Mac OS X':
-			return 'darwin'
-		elif s.startswith('Windows '):
-			return 'win32'
-		elif s == 'OS/2':
-			return 'os2'
-		elif s == 'HP-UX':
-			return 'hp-ux'
-		elif s in ('SunOS', 'Solaris'):
-			return 'sunos'
-		else: s = s.lower()
-
-	# powerpc == darwin for our purposes
-	if s == 'powerpc':
-		return 'darwin'
-	if s == 'win32' or s == 'os2':
-		return s
-	if s == 'cli' and os.name == 'nt':
-		# ironpython is only on windows as far as we know
-		return 'win32'
-	return re.split(r'\d+$', s)[0]
-
-def nada(*k, **kw):
-	"""
-	Does nothing
-
-	:return: None
-	"""
-	pass
-
-class Timer(object):
-	"""
-	Simple object for timing the execution of commands.
-	Its string representation is the duration::
-
-		from waflib.Utils import Timer
-		timer = Timer()
-		a_few_operations()
-		s = str(timer)
-	"""
-	def __init__(self):
-		self.start_time = self.now()
-
-	def __str__(self):
-		delta = self.now() - self.start_time
-		if not isinstance(delta, datetime.timedelta):
-			delta = datetime.timedelta(seconds=delta)
-		days = delta.days
-		hours, rem = divmod(delta.seconds, 3600)
-		minutes, seconds = divmod(rem, 60)
-		seconds += delta.microseconds * 1e-6
-		result = ''
-		if days:
-			result += '%dd' % days
-		if days or hours:
-			result += '%dh' % hours
-		if days or hours or minutes:
-			result += '%dm' % minutes
-		return '%s%.3fs' % (result, seconds)
-
-	def now(self):
-		return datetime.datetime.utcnow()
-
-	if hasattr(time, 'perf_counter'):
-		def now(self):
-			return time.perf_counter()
-
-def read_la_file(path):
-	"""
-	Reads property files, used by msvc.py
-
-	:param path: file to read
-	:type path: string
-	"""
-	sp = re.compile(r'^([^=]+)=\'(.*)\'$')
-	dc = {}
-	for line in readf(path).splitlines():
-		try:
-			_, left, right, _ = sp.split(line.strip())
-			dc[left] = right
-		except ValueError:
-			pass
-	return dc
-
-def run_once(fun):
-	"""
-	Decorator: let a function cache its results, use like this::
-
-		@run_once
-		def foo(k):
-			return 345*2343
-
-	.. note:: in practice this can cause memory leaks, prefer a :py:class:`waflib.Utils.lru_cache`
-
-	:param fun: function to execute
-	:type fun: function
-	:return: the return value of the function executed
-	"""
-	cache = {}
-	def wrap(*k):
-		try:
-			return cache[k]
-		except KeyError:
-			ret = fun(*k)
-			cache[k] = ret
-			return ret
-	wrap.__cache__ = cache
-	wrap.__name__ = fun.__name__
-	return wrap
-
-def get_registry_app_path(key, filename):
-	"""
-	Returns the value of a registry key for an executable
-
-	:type key: string
-	:type filename: list of string
-	"""
-	if not winreg:
-		return None
-	try:
-		result = winreg.QueryValue(key, "Software\\Microsoft\\Windows\\CurrentVersion\\App Paths\\%s.exe" % filename[0])
-	except OSError:
-		pass
-	else:
-		if os.path.isfile(result):
-			return result
-
-def lib64():
-	"""
-	Guess the default ``/usr/lib`` extension for 64-bit applications
-
-	:return: '64' or ''
-	:rtype: string
-	"""
-	# default settings for /usr/lib
-	if os.sep == '/':
-		if platform.architecture()[0] == '64bit':
-			if os.path.exists('/usr/lib64') and not os.path.exists('/usr/lib32'):
-				return '64'
-	return ''
-
-def sane_path(p):
-	# private function for the time being!
-	return os.path.abspath(os.path.expanduser(p))
-
-process_pool = []
-"""
-List of processes started to execute sub-process commands
-"""
-
-def get_process():
-	"""
-	Returns a process object that can execute commands as sub-processes
-
-	:rtype: subprocess.Popen
-	"""
-	try:
-		return process_pool.pop()
-	except IndexError:
-		filepath = os.path.dirname(os.path.abspath(__file__)) + os.sep + 'processor.py'
-		cmd = [sys.executable, '-c', readf(filepath)]
-		return subprocess.Popen(cmd, stdout=subprocess.PIPE, stdin=subprocess.PIPE, bufsize=0)
-
-def run_prefork_process(cmd, kwargs, cargs):
-	"""
-	Delegates process execution to a pre-forked process instance.
-	"""
-	if not 'env' in kwargs:
-		kwargs['env'] = dict(os.environ)
-	try:
-		obj = base64.b64encode(cPickle.dumps([cmd, kwargs, cargs]))
-	except (TypeError, AttributeError):
-		return run_regular_process(cmd, kwargs, cargs)
-
-	proc = get_process()
-	if not proc:
-		return run_regular_process(cmd, kwargs, cargs)
-
-	proc.stdin.write(obj)
-	proc.stdin.write('\n'.encode())
-	proc.stdin.flush()
-	obj = proc.stdout.readline()
-	if not obj:
-		raise OSError('Preforked sub-process %r died' % proc.pid)
-
-	process_pool.append(proc)
-	lst = cPickle.loads(base64.b64decode(obj))
-	# Jython wrapper failures (bash/execvp)
-	assert len(lst) == 5
-	ret, out, err, ex, trace = lst
-	if ex:
-		if ex == 'OSError':
-			raise OSError(trace)
-		elif ex == 'ValueError':
-			raise ValueError(trace)
-		elif ex == 'TimeoutExpired':
-			exc = TimeoutExpired(cmd, timeout=cargs['timeout'], output=out)
-			exc.stderr = err
-			raise exc
-		else:
-			raise Exception(trace)
-	return ret, out, err
-
-def lchown(path, user=-1, group=-1):
-	"""
-	Change the owner/group of a path, raises an OSError if the
-	ownership change fails.
-
-	:param user: user to change
-	:type user: int or str
-	:param group: group to change
-	:type group: int or str
-	"""
-	if isinstance(user, str):
-		import pwd
-		entry = pwd.getpwnam(user)
-		if not entry:
-			raise OSError('Unknown user %r' % user)
-		user = entry[2]
-	if isinstance(group, str):
-		import grp
-		entry = grp.getgrnam(group)
-		if not entry:
-			raise OSError('Unknown group %r' % group)
-		group = entry[2]
-	return os.lchown(path, user, group)
-
-def run_regular_process(cmd, kwargs, cargs={}):
-	"""
-	Executes a subprocess command by using subprocess.Popen
-	"""
-	proc = subprocess.Popen(cmd, **kwargs)
-	if kwargs.get('stdout') or kwargs.get('stderr'):
-		try:
-			out, err = proc.communicate(**cargs)
-		except TimeoutExpired:
-			if kwargs.get('start_new_session') and hasattr(os, 'killpg'):
-				os.killpg(proc.pid, signal.SIGKILL)
-			else:
-				proc.kill()
-			out, err = proc.communicate()
-			exc = TimeoutExpired(proc.args, timeout=cargs['timeout'], output=out)
-			exc.stderr = err
-			raise exc
-		status = proc.returncode
-	else:
-		out, err = (None, None)
-		try:
-			status = proc.wait(**cargs)
-		except TimeoutExpired as e:
-			if kwargs.get('start_new_session') and hasattr(os, 'killpg'):
-				os.killpg(proc.pid, signal.SIGKILL)
-			else:
-				proc.kill()
-			proc.wait()
-			raise e
-	return status, out, err
-
-def run_process(cmd, kwargs, cargs={}):
-	"""
-	Executes a subprocess by using a pre-forked process when possible
-	or falling back to subprocess.Popen. See :py:func:`waflib.Utils.run_prefork_process`
-	and :py:func:`waflib.Utils.run_regular_process`
-	"""
-	if kwargs.get('stdout') and kwargs.get('stderr'):
-		return run_prefork_process(cmd, kwargs, cargs)
-	else:
-		return run_regular_process(cmd, kwargs, cargs)
-
-def alloc_process_pool(n, force=False):
-	"""
-	Allocates an amount of processes to the default pool so its size is at least *n*.
-	It is useful to call this function early so that the pre-forked
-	processes use as little memory as possible.
-
-	:param n: pool size
-	:type n: integer
-	:param force: if True then *n* more processes are added to the existing pool
-	:type force: bool
-	"""
-	# mandatory on python2, unnecessary on python >= 3.2
-	global run_process, get_process, alloc_process_pool
-	if not force:
-		n = max(n - len(process_pool), 0)
-	try:
-		lst = [get_process() for x in range(n)]
-	except OSError:
-		run_process = run_regular_process
-		get_process = alloc_process_pool = nada
-	else:
-		for x in lst:
-			process_pool.append(x)
-
-def atexit_pool():
-	for k in process_pool:
-		try:
-			os.kill(k.pid, 9)
-		except OSError:
-			pass
-		else:
-			k.wait()
-# see #1889
-if (sys.hexversion<0x207000f and not is_win32) or sys.hexversion>=0x306000f:
-	atexit.register(atexit_pool)
-
-if os.environ.get('WAF_NO_PREFORK') or sys.platform == 'cli' or not sys.executable:
-	run_process = run_regular_process
-	get_process = alloc_process_pool = nada
-