# Cross compiling

if "_PYTHON_HOST_PLATFORM" in os.environ:

return os.environ["_PYTHON_HOST_PLATFORM"]

# Get value of sys.platform

if sys.platform.startswith('osf1'):

return 'osf1'

"""Add the directory 'dir' to the list 'dirlist' (after any relative

if dir is None or not os.path.isdir(dir) or dir in dirlist:

return

for i, path in enumerate(dirlist):

if not os.path.isabs(path):

dirlist.insert(i + 1, dir)

return

"""Get the paths of sysroot sub-directories.

dirs = []

for var_name in make_vars:

var = sysconfig.get_config_var(var_name)

if var is not None:

m = re.search(r'--sysroot=([^"]\S*|"[^"]+")', var)

if m is not None:

sysroot = m.group(1).strip('"')

for subdir in subdirs:

if os.path.isabs(subdir):

subdir = subdir[1:]

path = os.path.join(sysroot, subdir)

if os.path.isdir(path):

dirs.append(path)

break

"""Return the directory of the current macOS SDK.

global MACOS_SDK_ROOT, MACOS_SDK_SPECIFIED

# If already called, return cached result.

if MACOS_SDK_ROOT:

return MACOS_SDK_ROOT

cflags = sysconfig.get_config_var('CFLAGS')

m = re.search(r'-isysroot\s*(\S+)', cflags)

if m is not None:

MACOS_SDK_ROOT = m.group(1)

MACOS_SDK_SPECIFIED = MACOS_SDK_ROOT != '/'

else:

MACOS_SDK_ROOT = _osx_support._default_sysroot(

sysconfig.get_config_var('CC'))

MACOS_SDK_SPECIFIED = False

"""Returns true if an SDK was explicitly configured.

global MACOS_SDK_SPECIFIED

# If already called, return cached result.

if MACOS_SDK_SPECIFIED:

return MACOS_SDK_SPECIFIED

# Find the sdk root and set MACOS_SDK_SPECIFIED

macosx_sdk_root()

"""

return ( (path.startswith('/usr/') and not path.startswith('/usr/local'))

or path.startswith('/System/Library')

for header in headers:

with open(header, 'r', errors='surrogateescape') as f:

if function in f.read():

return True

"""Searches for the directory where a given file is located,

if MACOS:

# Honor the MacOSX SDK setting when one was specified.

# An SDK is a directory with the same structure as a real

# system, but with only header files and libraries.

sysroot = macosx_sdk_root()

# Check the standard locations

for dir_ in std_dirs:

f = os.path.join(dir_, filename)

if MACOS and is_macosx_sdk_path(dir_):

f = os.path.join(sysroot, dir_[1:], filename)

if os.path.exists(f): return []

# Check the additional directories

for dir_ in paths:

f = os.path.join(dir_, filename)

if MACOS and is_macosx_sdk_path(dir_):

f = os.path.join(sysroot, dir_[1:], filename)

if os.path.exists(f):

return [dir_]

# Not found anywhere

result = compiler.find_library_file(std_dirs + paths, libname)

if result is None:

return None

if MACOS:

sysroot = macosx_sdk_root()

# Check whether the found file is in one of the standard directories

dirname = os.path.dirname(result)

for p in std_dirs:

# Ensure path doesn't end with path separator

p = p.rstrip(os.sep)

if MACOS and is_macosx_sdk_path(p):

# Note that, as of Xcode 7, Apple SDKs may contain textual stub

# libraries with .tbd extensions rather than the normal .dylib

# shared libraries installed in /. The Apple compiler tool

# chain handles this transparently but it can cause problems

# for programs that are being built with an SDK and searching

# for specific libraries. Distutils find_library_file() now

# knows to also search for and return .tbd files. But callers

# of find_library_file need to keep in mind that the base filename

# of the returned SDK library file might have a different extension

# from that of the library file installed on the running system,

# for example:

# /Applications/Xcode.app/Contents/Developer/Platforms/

# MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/

# usr/lib/libedit.tbd

# vs

# /usr/lib/libedit.dylib

if os.path.join(sysroot, p[1:]) == dirname:

return [ ]

if p == dirname:

return [ ]

# Otherwise, it must have been in one of the additional directories,

# so we have to figure out which one.

for p in paths:

# Ensure path doesn't end with path separator

p = p.rstrip(os.sep)

if MACOS and is_macosx_sdk_path(p):

if os.path.join(sysroot, p[1:]) == dirname:

return [ p ]

if p == dirname:

return [p]

else:

base_tzpath = sysconfig.get_config_var('TZPATH')

if not base_tzpath:

return

tzpaths = base_tzpath.split(os.pathsep)

bad_paths = [tzpath for tzpath in tzpaths if not os.path.isabs(tzpath)]

if bad_paths:

raise ValueError('TZPATH must contain only absolute paths, '

+ f'found:\n{tzpaths!r}\nwith invalid paths:\n'

"""Find a module in a set of possible folders. If it is not found

dirs = find_file(module, [], dirlist)

if not dirs:

return module

if len(dirs) > 1:

log.info(f"WARNING: multiple copies of {module} found")

def __init__(self, dist):

build_ext.__init__(self, dist)

self.srcdir = None

self.lib_dirs = None

self.inc_dirs = None

self.config_h_vars = None

self.failed = []

self.failed_on_import = []

self.missing = []

self.disabled_configure = []

if '-j' in os.environ.get('MAKEFLAGS', ''):

self.parallel = True

def add(self, ext):

self.extensions.append(ext)

def addext(self, ext, *, update_flags=True):

"""Add extension with Makefile MODULE_{name} support

if update_flags:

self.update_extension_flags(ext)

state = sysconfig.get_config_var(f"MODULE_{ext.name.upper()}")

if state == "yes":

self.extensions.append(ext)

elif state == "disabled":

self.disabled_configure.append(ext.name)

elif state == "missing":

self.missing.append(ext.name)

elif state == "n/a":

# not available on current platform

pass

else:

# not migrated to MODULE_{name} yet.

self.announce(

f'WARNING: Makefile is missing module variable for "{ext.name}"',

level=2

)

self.extensions.append(ext)

def update_extension_flags(self, ext):

"""Update extension flags with module CFLAGS and LDFLAGS

upper_name = ext.name.upper()

# Parse compiler flags (-I, -D, -U, extra args)

cflags = sysconfig.get_config_var(f"MODULE_{upper_name}_CFLAGS")

if cflags:

for token in shlex.split(cflags):

switch = token[0:2]

value = token[2:]

if switch == '-I':

ext.include_dirs.append(value)

elif switch == '-D':

key, _, val = value.partition("=")

if not val:

val = None

ext.define_macros.append((key, val))

elif switch == '-U':

ext.undef_macros.append(value)

else:

ext.extra_compile_args.append(token)

# Parse linker flags (-L, -l, extra objects, extra args)

ldflags = sysconfig.get_config_var(f"MODULE_{upper_name}_LDFLAGS")

if ldflags:

for token in shlex.split(ldflags):

switch = token[0:2]

value = token[2:]

if switch == '-L':

ext.library_dirs.append(value)

elif switch == '-l':

ext.libraries.append(value)

elif (

token[0] != '-' and

token.endswith(('.a', '.o', '.so', '.sl', '.dylib'))

):

ext.extra_objects.append(token)

else:

ext.extra_link_args.append(token)

return ext

def set_srcdir(self):

self.srcdir = sysconfig.get_config_var('srcdir')

if not self.srcdir:

# Maybe running on Windows but not using CYGWIN?

raise ValueError("No source directory; cannot proceed.")

self.srcdir = os.path.abspath(self.srcdir)

def remove_disabled(self):

# Remove modules that are present on the disabled list

extensions = [ext for ext in self.extensions

if ext.name not in DISABLED_MODULE_LIST]

# move ctypes to the end, it depends on other modules

ext_map = dict((ext.name, i) for i, ext in enumerate(extensions))

if "_ctypes" in ext_map:

ctypes = extensions.pop(ext_map["_ctypes"])

extensions.append(ctypes)

self.extensions = extensions

def update_sources_depends(self):

# Fix up the autodetected modules, prefixing all the source files

# with Modules/.

# Add dependencies from MODULE_{name}_DEPS variable

moddirlist = [

# files in Modules/ directory

os.path.join(self.srcdir, 'Modules'),

# files relative to build base, e.g. libmpdec.a, libexpat.a

os.getcwd()

]

# Fix up the paths for scripts, too

self.distribution.scripts = [os.path.join(self.srcdir, filename)

for filename in self.distribution.scripts]

# Python header files

include_dir = escape(sysconfig.get_path('include'))

headers = [sysconfig.get_config_h_filename()]

headers.extend(glob(os.path.join(include_dir, "*.h")))

headers.extend(glob(os.path.join(include_dir, "cpython", "*.h")))

headers.extend(glob(os.path.join(include_dir, "internal", "*.h")))

for ext in self.extensions:

ext.sources = [ find_module_file(filename, moddirlist)

for filename in ext.sources ]

# Update dependencies from Makefile

makedeps = sysconfig.get_config_var(f"MODULE_{ext.name.upper()}_DEPS")

if makedeps:

# remove backslashes from line break continuations

ext.depends.extend(

dep for dep in makedeps.split() if dep != "\\"

)

ext.depends = [

find_module_file(filename, moddirlist) for filename in ext.depends

]

# re-compile extensions if a header file has been changed

ext.depends.extend(headers)

def handle_configured_extensions(self):

# The sysconfig variables built by makesetup that list the already

# built modules and the disabled modules as configured by the Setup

# files.

sysconf_built = set(sysconfig.get_config_var('MODBUILT_NAMES').split())

sysconf_shared = set(sysconfig.get_config_var('MODSHARED_NAMES').split())

sysconf_dis = set(sysconfig.get_config_var('MODDISABLED_NAMES').split())

mods_built = []

mods_disabled = []

for ext in self.extensions:

# If a module has already been built or has been disabled in the

# Setup files, don't build it here.

if ext.name in sysconf_built:

mods_built.append(ext)

if ext.name in sysconf_dis:

mods_disabled.append(ext)

mods_configured = mods_built + mods_disabled

if mods_configured:

self.extensions = [x for x in self.extensions if x not in

mods_configured]

# Remove the shared libraries built by a previous build.

for ext in mods_configured:

# Don't remove shared extensions which have been built

# by Modules/Setup

if ext.name in sysconf_shared:

continue

fullpath = self.get_ext_fullpath(ext.name)

if os.path.lexists(fullpath):

os.unlink(fullpath)

return mods_built, mods_disabled

def set_compiler_executables(self):

# When you run "make CC=altcc" or something similar, you really want

# those environment variables passed into the setup.py phase. Here's

# a small set of useful ones.

compiler = os.environ.get('CC')

args = {}

# unfortunately, distutils doesn't let us provide separate C and C++

# compilers

if compiler is not None:

(ccshared,cflags) = sysconfig.get_config_vars('CCSHARED','CFLAGS')

args['compiler_so'] = compiler + ' ' + ccshared + ' ' + cflags

self.compiler.set_executables(**args)

def build_extensions(self):

self.set_srcdir()

self.set_compiler_executables()

self.configure_compiler()

self.init_inc_lib_dirs()

# Detect which modules should be compiled

self.detect_modules()

if not LIST_MODULE_NAMES:

self.remove_disabled()

self.update_sources_depends()

mods_built, mods_disabled = self.handle_configured_extensions()

if LIST_MODULE_NAMES:

for ext in self.extensions:

print(ext.name)

for name in self.missing:

print(name)

return

build_ext.build_extensions(self)

if SUBPROCESS_BOOTSTRAP:

# Drop our custom subprocess module:

# use the newly built subprocess module

del sys.modules['subprocess']

for ext in self.extensions:

self.check_extension_import(ext)

self.summary(mods_built, mods_disabled)

def summary(self, mods_built, mods_disabled):

longest = max([len(e.name) for e in self.extensions], default=0)

if self.failed or self.failed_on_import:

all_failed = self.failed + self.failed_on_import

longest = max(longest, max([len(name) for name in all_failed]))

def print_three_column(lst):

lst.sort(key=str.lower)

# guarantee zip() doesn't drop anything

while len(lst) % 3:

lst.append("")

for e, f, g in zip(lst[::3], lst[1::3], lst[2::3]):

print("%-*s %-*s %-*s" % (longest, e, longest, f,

longest, g))

if self.missing:

print()

print("Python build finished successfully!")

print("The necessary bits to build these optional modules were not "

"found:")

print_three_column(self.missing)

print("To find the necessary bits, look in setup.py in"

" detect_modules() for the module's name.")

print()

if mods_built:

print()

print("The following modules found by detect_modules() in"

" setup.py, have been")

print("built by the Makefile instead, as configured by the"

" Setup files:")

print_three_column([ext.name for ext in mods_built])

print()

if mods_disabled:

print()

print("The following modules found by detect_modules() in"

" setup.py have not")

print("been built, they are *disabled* in the Setup files:")

print_three_column([ext.name for ext in mods_disabled])

print()

if self.disabled_configure:

print()

print("The following modules found by detect_modules() in"

" setup.py have not")

print("been built, they are *disabled* by configure:")

print_three_column(self.disabled_configure)

print()

if self.failed:

failed = self.failed[:]

print()

print("Failed to build these modules:")

print_three_column(failed)

print()

if self.failed_on_import:

failed = self.failed_on_import[:]

print()

print("Following modules built successfully"

" but were removed because they could not be imported:")

print_three_column(failed)

print()

if any('_ssl' in l

for l in (self.missing, self.failed, self.failed_on_import)):

print()

print("Could not build the ssl module!")

print("Python requires a OpenSSL 1.1.1 or newer")

if sysconfig.get_config_var("OPENSSL_LDFLAGS"):

print("Custom linker flags may require --with-openssl-rpath=auto")

print()

if os.environ.get("PYTHONSTRICTEXTENSIONBUILD") and (

self.failed or self.failed_on_import or self.missing

):

raise RuntimeError("Failed to build some stdlib modules")

def build_extension(self, ext):

if ext.name == '_ctypes':

if not self.configure_ctypes(ext):

self.failed.append(ext.name)

return

try:

build_ext.build_extension(self, ext)

except (CCompilerError, DistutilsError) as why:

self.announce('WARNING: building of extension "%s" failed: %s' %

(ext.name, why))

self.failed.append(ext.name)

return

def check_extension_import(self, ext):

# Don't try to import an extension that has failed to compile

if ext.name in self.failed:

self.announce(

'WARNING: skipping import check for failed build "%s"' %

ext.name, level=1)

return

# Workaround for Mac OS X: The Carbon-based modules cannot be

# reliably imported into a command-line Python

if 'Carbon' in ext.extra_link_args:

self.announce(

'WARNING: skipping import check for Carbon-based "%s"' %

ext.name)

return

if MACOS and (

sys.maxsize > 2**32 and '-arch' in ext.extra_link_args):

# Don't bother doing an import check when an extension was

# build with an explicit '-arch' flag on OSX. That's currently

# only used to build 32-bit only extensions in a 4-way

# universal build and loading 32-bit code into a 64-bit

# process will fail.

self.announce(

'WARNING: skipping import check for "%s"' %

ext.name)

return

# Workaround for Cygwin: Cygwin currently has fork issues when many

# modules have been imported

if CYGWIN:

self.announce('WARNING: skipping import check for Cygwin-based "%s"'

% ext.name)

return

ext_filename = os.path.join(

self.build_lib,

self.get_ext_filename(self.get_ext_fullname(ext.name)))

# If the build directory didn't exist when setup.py was

# started, sys.path_importer_cache has a negative result

# cached. Clear that cache before trying to import.

sys.path_importer_cache.clear()

# Don't try to load extensions for cross builds

if CROSS_COMPILING:

return

loader = importlib.machinery.ExtensionFileLoader(ext.name, ext_filename)

spec = importlib.util.spec_from_file_location(ext.name, ext_filename,

loader=loader)

try:

importlib._bootstrap._load(spec)

except ImportError as why:

self.failed_on_import.append(ext.name)

self.announce('*** WARNING: renaming "%s" since importing it'

' failed: %s' % (ext.name, why), level=3)

assert not self.inplace

basename, tail = os.path.splitext(ext_filename)

newname = basename + "_failed" + tail

if os.path.exists(newname):

os.remove(newname)

os.rename(ext_filename, newname)

except:

exc_type, why, tb = sys.exc_info()

self.announce('*** WARNING: importing extension "%s" '

'failed with %s: %s' % (ext.name, exc_type, why),

level=3)

self.failed.append(ext.name)

def add_multiarch_paths(self):

# Debian/Ubuntu multiarch support.

# https://wiki.ubuntu.com/MultiarchSpec

tmpfile = os.path.join(self.build_temp, 'multiarch')

if not os.path.exists(self.build_temp):

os.makedirs(self.build_temp)

ret = run_command(

'%s -print-multiarch > %s 2> /dev/null' % (CC, tmpfile))

multiarch_path_component = ''

try:

if ret == 0:

with open(tmpfile) as fp:

multiarch_path_component = fp.readline().strip()

finally:

os.unlink(tmpfile)

if multiarch_path_component != '':

add_dir_to_list(self.compiler.library_dirs,

'/usr/lib/' + multiarch_path_component)

add_dir_to_list(self.compiler.include_dirs,

'/usr/include/' + multiarch_path_component)

return

if not find_executable('dpkg-architecture'):

return

opt = ''

if CROSS_COMPILING:

opt = '-t' + sysconfig.get_config_var('HOST_GNU_TYPE')

tmpfile = os.path.join(self.build_temp, 'multiarch')

if not os.path.exists(self.build_temp):

os.makedirs(self.build_temp)

ret = run_command(

'dpkg-architecture %s -qDEB_HOST_MULTIARCH > %s 2> /dev/null' %

(opt, tmpfile))

try:

if ret == 0:

with open(tmpfile) as fp:

multiarch_path_component = fp.readline().strip()

add_dir_to_list(self.compiler.library_dirs,

'/usr/lib/' + multiarch_path_component)

add_dir_to_list(self.compiler.include_dirs,

'/usr/include/' + multiarch_path_component)

finally:

os.unlink(tmpfile)

def add_wrcc_search_dirs(self):

# add library search path by wr-cc, the compiler wrapper

def convert_mixed_path(path):

# convert path like C:\folder1\folder2/folder3/folder4

# to msys style /c/folder1/folder2/folder3/folder4

drive = path[0].lower()

left = path[2:].replace("\\", "/")

return "/" + drive + left

def add_search_path(line):

# On Windows building machine, VxWorks does

# cross builds under msys2 environment.

pathsep = (";" if sys.platform == "msys" else ":")

for d in line.strip().split("=")[1].split(pathsep):

d = d.strip()

if sys.platform == "msys":

# On Windows building machine, compiler

# returns mixed style path like:

# C:\folder1\folder2/folder3/folder4

d = convert_mixed_path(d)

d = os.path.normpath(d)

add_dir_to_list(self.compiler.library_dirs, d)

tmpfile = os.path.join(self.build_temp, 'wrccpaths')

os.makedirs(self.build_temp, exist_ok=True)

try:

ret = run_command('%s --print-search-dirs >%s' % (CC, tmpfile))

if ret:

return

with open(tmpfile) as fp:

# Parse paths in libraries line. The line is like:

# On Linux, "libraries: = path1:path2:path3"

# On Windows, "libraries: = path1;path2;path3"

for line in fp:

if not line.startswith("libraries"):

continue

add_search_path(line)

finally:

try:

os.unlink(tmpfile)

except OSError:

pass

def add_cross_compiling_paths(self):

tmpfile = os.path.join(self.build_temp, 'ccpaths')

if not os.path.exists(self.build_temp):

os.makedirs(self.build_temp)

# bpo-38472: With a German locale, GCC returns "gcc-Version 9.1.0

# (GCC)", whereas it returns "gcc version 9.1.0" with the C locale.

ret = run_command('LC_ALL=C %s -E -v - </dev/null 2>%s 1>/dev/null' % (CC, tmpfile))

is_gcc = False

is_clang = False

in_incdirs = False

try:

if ret == 0:

with open(tmpfile) as fp:

for line in fp.readlines():

if line.startswith("gcc version"):

is_gcc = True

elif line.startswith("clang version"):

is_clang = True

elif line.startswith("#include <...>"):

in_incdirs = True

elif line.startswith("End of search list"):

in_incdirs = False

elif (is_gcc or is_clang) and line.startswith("LIBRARY_PATH"):

for d in line.strip().split("=")[1].split(":"):

d = os.path.normpath(d)

if '/gcc/' not in d:

add_dir_to_list(self.compiler.library_dirs,

d)

elif (is_gcc or is_clang) and in_incdirs and '/gcc/' not in line and '/clang/' not in line:

add_dir_to_list(self.compiler.include_dirs,

line.strip())

finally:

os.unlink(tmpfile)

if VXWORKS:

self.add_wrcc_search_dirs()

def add_ldflags_cppflags(self):

# Add paths specified in the environment variables LDFLAGS and

# CPPFLAGS for header and library files.

# We must get the values from the Makefile and not the environment

# directly since an inconsistently reproducible issue comes up where

# the environment variable is not set even though the value were passed

# into configure and stored in the Makefile (issue found on OS X 10.3).

for env_var, arg_name, dir_list in (

('LDFLAGS', '-R', self.compiler.runtime_library_dirs),

('LDFLAGS', '-L', self.compiler.library_dirs),

('CPPFLAGS', '-I', self.compiler.include_dirs)):

env_val = sysconfig.get_config_var(env_var)

if env_val:

parser = argparse.ArgumentParser()

parser.add_argument(arg_name, dest="dirs", action="append")

# To prevent argparse from raising an exception about any

# options in env_val that it mistakes for known option, we

# strip out all double dashes and any dashes followed by a

# character that is not for the option we are dealing with.

#

# Please note that order of the regex is important! We must

# strip out double-dashes first so that we don't end up with

# substituting "--Long" to "-Long" and thus lead to "ong" being

# used for a library directory.

env_val = re.sub(r'(^|\s+)-(-|(?!%s))' % arg_name[1],

' ', env_val)

options, _ = parser.parse_known_args(env_val.split())

if options.dirs:

for directory in reversed(options.dirs):

add_dir_to_list(dir_list, directory)

def configure_compiler(self):

# Ensure that /usr/local is always used, but the local build

# directories (i.e. '.' and 'Include') must be first. See issue

# 10520.

if not CROSS_COMPILING:

add_dir_to_list(self.compiler.library_dirs, '/usr/local/lib')

add_dir_to_list(self.compiler.include_dirs, '/usr/local/include')

# only change this for cross builds for 3.3, issues on Mageia

if CROSS_COMPILING:

self.add_cross_compiling_paths()

self.add_multiarch_paths()

self.add_ldflags_cppflags()

def init_inc_lib_dirs(self):

if (not CROSS_COMPILING and

os.path.normpath(sys.base_prefix) != '/usr' and

not sysconfig.get_config_var('PYTHONFRAMEWORK')):

# OSX note: Don't add LIBDIR and INCLUDEDIR to building a framework

# (PYTHONFRAMEWORK is set) to avoid # linking problems when

# building a framework with different architectures than

# the one that is currently installed (issue #7473)

add_dir_to_list(self.compiler.library_dirs,

sysconfig.get_config_var("LIBDIR"))

add_dir_to_list(self.compiler.include_dirs,

sysconfig.get_config_var("INCLUDEDIR"))

system_lib_dirs = ['/lib64', '/usr/lib64', '/lib', '/usr/lib']

system_include_dirs = ['/usr/include']

# lib_dirs and inc_dirs are used to search for files;

# if a file is found in one of those directories, it can

# be assumed that no additional -I,-L directives are needed.

if not CROSS_COMPILING:

self.lib_dirs = self.compiler.library_dirs + system_lib_dirs

self.inc_dirs = self.compiler.include_dirs + system_include_dirs

else:

# Add the sysroot paths. 'sysroot' is a compiler option used to

# set the logical path of the standard system headers and

# libraries.

self.lib_dirs = (self.compiler.library_dirs +

sysroot_paths(('LDFLAGS', 'CC'), system_lib_dirs))

self.inc_dirs = (self.compiler.include_dirs +

sysroot_paths(('CPPFLAGS', 'CFLAGS', 'CC'),

system_include_dirs))

config_h = sysconfig.get_config_h_filename()

with open(config_h) as file:

self.config_h_vars = sysconfig.parse_config_h(file)

# OSF/1 and Unixware have some stuff in /usr/ccs/lib (like -ldb)

if HOST_PLATFORM in ['osf1', 'unixware7', 'openunix8']:

self.lib_dirs += ['/usr/ccs/lib']

# HP-UX11iv3 keeps files in lib/hpux folders.

if HOST_PLATFORM == 'hp-ux11':

self.lib_dirs += ['/usr/lib/hpux64', '/usr/lib/hpux32']

if MACOS:

# This should work on any unixy platform ;-)

# If the user has bothered specifying additional -I and -L flags

# in OPT and LDFLAGS we might as well use them here.

#

# NOTE: using shlex.split would technically be more correct, but

# also gives a bootstrap problem. Let's hope nobody uses

# directories with whitespace in the name to store libraries.

cflags, ldflags = sysconfig.get_config_vars(

'CFLAGS', 'LDFLAGS')

for item in cflags.split():

if item.startswith('-I'):

self.inc_dirs.append(item[2:])

for item in ldflags.split():

if item.startswith('-L'):

self.lib_dirs.append(item[2:])

def detect_simple_extensions(self):

#

# The following modules are all pretty straightforward, and compile

# on pretty much any POSIXish platform.

#

# array objects

self.addext(Extension('array', ['arraymodule.c']))

# Context Variables

self.addext(Extension('_contextvars', ['_contextvarsmodule.c']))