mirror of https://github.com/python/cpython
249 lines
8.9 KiB
Python
249 lines
8.9 KiB
Python
"""Provide access to Python's configuration information. The specific
|
|
configuration variables available depend heavily on the platform and
|
|
configuration. The values may be retrieved using
|
|
get_config_var(name), and the list of variables is available via
|
|
get_config_vars().keys(). Additional convenience functions are also
|
|
available.
|
|
|
|
Written by: Fred L. Drake, Jr.
|
|
Email: <fdrake@acm.org>
|
|
"""
|
|
|
|
import _imp
|
|
import os
|
|
import re
|
|
import sys
|
|
import warnings
|
|
|
|
from functools import partial
|
|
|
|
from .errors import DistutilsPlatformError
|
|
|
|
from sysconfig import (
|
|
_PREFIX as PREFIX,
|
|
_BASE_PREFIX as BASE_PREFIX,
|
|
_EXEC_PREFIX as EXEC_PREFIX,
|
|
_BASE_EXEC_PREFIX as BASE_EXEC_PREFIX,
|
|
_PROJECT_BASE as project_base,
|
|
_PYTHON_BUILD as python_build,
|
|
_init_posix as sysconfig_init_posix,
|
|
parse_config_h as sysconfig_parse_config_h,
|
|
_parse_makefile as sysconfig_parse_makefile,
|
|
|
|
_init_non_posix,
|
|
_is_python_source_dir,
|
|
_sys_home,
|
|
|
|
_variable_rx,
|
|
_findvar1_rx,
|
|
_findvar2_rx,
|
|
|
|
expand_makefile_vars,
|
|
is_python_build,
|
|
get_config_h_filename,
|
|
get_config_var,
|
|
get_config_vars,
|
|
get_makefile_filename,
|
|
get_python_version,
|
|
)
|
|
|
|
# This is better than
|
|
# from sysconfig import _CONFIG_VARS as _config_vars
|
|
# because it makes sure that the global dictionary is initialized
|
|
# which might not be true in the time of import.
|
|
_config_vars = get_config_vars()
|
|
|
|
if os.name == "nt":
|
|
from sysconfig import _fix_pcbuild
|
|
|
|
warnings.warn(
|
|
'The distutils.sysconfig module is deprecated, use sysconfig instead',
|
|
DeprecationWarning,
|
|
stacklevel=2
|
|
)
|
|
|
|
|
|
# Following functions are the same as in sysconfig but with different API
|
|
def parse_config_h(fp, g=None):
|
|
return sysconfig_parse_config_h(fp, vars=g)
|
|
|
|
|
|
def parse_makefile(fn, g=None):
|
|
return sysconfig_parse_makefile(fn, vars=g, keep_unresolved=False)
|
|
|
|
_python_build = partial(is_python_build, check_home=True)
|
|
_init_posix = partial(sysconfig_init_posix, _config_vars)
|
|
_init_nt = partial(_init_non_posix, _config_vars)
|
|
|
|
|
|
# Following functions are deprecated together with this module and they
|
|
# have no direct replacement
|
|
|
|
# Calculate the build qualifier flags if they are defined. Adding the flags
|
|
# to the include and lib directories only makes sense for an installation, not
|
|
# an in-source build.
|
|
build_flags = ''
|
|
try:
|
|
if not python_build:
|
|
build_flags = sys.abiflags
|
|
except AttributeError:
|
|
# It's not a configure-based build, so the sys module doesn't have
|
|
# this attribute, which is fine.
|
|
pass
|
|
|
|
|
|
def customize_compiler(compiler):
|
|
"""Do any platform-specific customization of a CCompiler instance.
|
|
|
|
Mainly needed on Unix, so we can plug in the information that
|
|
varies across Unices and is stored in Python's Makefile.
|
|
"""
|
|
if compiler.compiler_type == "unix":
|
|
if sys.platform == "darwin":
|
|
# Perform first-time customization of compiler-related
|
|
# config vars on OS X now that we know we need a compiler.
|
|
# This is primarily to support Pythons from binary
|
|
# installers. The kind and paths to build tools on
|
|
# the user system may vary significantly from the system
|
|
# that Python itself was built on. Also the user OS
|
|
# version and build tools may not support the same set
|
|
# of CPU architectures for universal builds.
|
|
if not _config_vars.get('CUSTOMIZED_OSX_COMPILER'):
|
|
import _osx_support
|
|
_osx_support.customize_compiler(_config_vars)
|
|
_config_vars['CUSTOMIZED_OSX_COMPILER'] = 'True'
|
|
|
|
(cc, cxx, cflags, ccshared, ldshared, shlib_suffix, ar, ar_flags) = \
|
|
get_config_vars('CC', 'CXX', 'CFLAGS',
|
|
'CCSHARED', 'LDSHARED', 'SHLIB_SUFFIX', 'AR', 'ARFLAGS')
|
|
|
|
if 'CC' in os.environ:
|
|
newcc = os.environ['CC']
|
|
if (sys.platform == 'darwin'
|
|
and 'LDSHARED' not in os.environ
|
|
and ldshared.startswith(cc)):
|
|
# On OS X, if CC is overridden, use that as the default
|
|
# command for LDSHARED as well
|
|
ldshared = newcc + ldshared[len(cc):]
|
|
cc = newcc
|
|
if 'CXX' in os.environ:
|
|
cxx = os.environ['CXX']
|
|
if 'LDSHARED' in os.environ:
|
|
ldshared = os.environ['LDSHARED']
|
|
if 'CPP' in os.environ:
|
|
cpp = os.environ['CPP']
|
|
else:
|
|
cpp = cc + " -E" # not always
|
|
if 'LDFLAGS' in os.environ:
|
|
ldshared = ldshared + ' ' + os.environ['LDFLAGS']
|
|
if 'CFLAGS' in os.environ:
|
|
cflags = cflags + ' ' + os.environ['CFLAGS']
|
|
ldshared = ldshared + ' ' + os.environ['CFLAGS']
|
|
if 'CPPFLAGS' in os.environ:
|
|
cpp = cpp + ' ' + os.environ['CPPFLAGS']
|
|
cflags = cflags + ' ' + os.environ['CPPFLAGS']
|
|
ldshared = ldshared + ' ' + os.environ['CPPFLAGS']
|
|
if 'AR' in os.environ:
|
|
ar = os.environ['AR']
|
|
if 'ARFLAGS' in os.environ:
|
|
archiver = ar + ' ' + os.environ['ARFLAGS']
|
|
else:
|
|
archiver = ar + ' ' + ar_flags
|
|
|
|
cc_cmd = cc + ' ' + cflags
|
|
compiler.set_executables(
|
|
preprocessor=cpp,
|
|
compiler=cc_cmd,
|
|
compiler_so=cc_cmd + ' ' + ccshared,
|
|
compiler_cxx=cxx,
|
|
linker_so=ldshared,
|
|
linker_exe=cc,
|
|
archiver=archiver)
|
|
|
|
compiler.shared_lib_extension = shlib_suffix
|
|
|
|
|
|
def get_python_inc(plat_specific=0, prefix=None):
|
|
"""Return the directory containing installed Python header files.
|
|
|
|
If 'plat_specific' is false (the default), this is the path to the
|
|
non-platform-specific header files, i.e. Python.h and so on;
|
|
otherwise, this is the path to platform-specific header files
|
|
(namely pyconfig.h).
|
|
|
|
If 'prefix' is supplied, use it instead of sys.base_prefix or
|
|
sys.base_exec_prefix -- i.e., ignore 'plat_specific'.
|
|
"""
|
|
if prefix is None:
|
|
prefix = plat_specific and BASE_EXEC_PREFIX or BASE_PREFIX
|
|
if os.name == "posix":
|
|
if python_build:
|
|
# Assume the executable is in the build directory. The
|
|
# pyconfig.h file should be in the same directory. Since
|
|
# the build directory may not be the source directory, we
|
|
# must use "srcdir" from the makefile to find the "Include"
|
|
# directory.
|
|
if plat_specific:
|
|
return _sys_home or project_base
|
|
else:
|
|
incdir = os.path.join(get_config_var('srcdir'), 'Include')
|
|
return os.path.normpath(incdir)
|
|
python_dir = 'python' + get_python_version() + build_flags
|
|
return os.path.join(prefix, "include", python_dir)
|
|
elif os.name == "nt":
|
|
if python_build:
|
|
# Include both the include and PC dir to ensure we can find
|
|
# pyconfig.h
|
|
return (os.path.join(prefix, "include") + os.path.pathsep +
|
|
os.path.join(prefix, "PC"))
|
|
return os.path.join(prefix, "include")
|
|
else:
|
|
raise DistutilsPlatformError(
|
|
"I don't know where Python installs its C header files "
|
|
"on platform '%s'" % os.name)
|
|
|
|
|
|
def get_python_lib(plat_specific=0, standard_lib=0, prefix=None):
|
|
"""Return the directory containing the Python library (standard or
|
|
site additions).
|
|
|
|
If 'plat_specific' is true, return the directory containing
|
|
platform-specific modules, i.e. any module from a non-pure-Python
|
|
module distribution; otherwise, return the platform-shared library
|
|
directory. If 'standard_lib' is true, return the directory
|
|
containing standard Python library modules; otherwise, return the
|
|
directory for site-specific modules.
|
|
|
|
If 'prefix' is supplied, use it instead of sys.base_prefix or
|
|
sys.base_exec_prefix -- i.e., ignore 'plat_specific'.
|
|
"""
|
|
if prefix is None:
|
|
if standard_lib:
|
|
prefix = plat_specific and BASE_EXEC_PREFIX or BASE_PREFIX
|
|
else:
|
|
prefix = plat_specific and EXEC_PREFIX or PREFIX
|
|
|
|
if os.name == "posix":
|
|
if plat_specific or standard_lib:
|
|
# Platform-specific modules (any module from a non-pure-Python
|
|
# module distribution) or standard Python library modules.
|
|
libdir = sys.platlibdir
|
|
else:
|
|
# Pure Python
|
|
libdir = "lib"
|
|
libpython = os.path.join(prefix, libdir,
|
|
"python" + get_python_version())
|
|
if standard_lib:
|
|
return libpython
|
|
else:
|
|
return os.path.join(libpython, "site-packages")
|
|
elif os.name == "nt":
|
|
if standard_lib:
|
|
return os.path.join(prefix, "Lib")
|
|
else:
|
|
return os.path.join(prefix, "Lib", "site-packages")
|
|
else:
|
|
raise DistutilsPlatformError(
|
|
"I don't know where Python installs its library "
|
|
"on platform '%s'" % os.name)
|