FCL/interim/QEMU: comparison symbian-qemu-0.9.1-12/python-2.6.1/Lib/distutils/command/build

equal deleted inserted replaced

-:ffa851df0825
+:2fb8b9db1c86
+"""distutils.command.build_ext
+Implements the Distutils 'build_ext' command, for building extension
+modules (currently limited to C extensions, should accommodate C++
+extensions ASAP)."""
+# This module should be kept compatible with Python 2.1.
+__revision__ = "$Id: build_ext.py 65742 2008-08-17 04:16:04Z brett.cannon $"
+import sys, os, string, re
+from types import *
+from site import USER_BASE, USER_SITE
+from distutils.core import Command
+from distutils.errors import *
+from distutils.sysconfig import customize_compiler, get_python_version
+from distutils.dep_util import newer_group
+from distutils.extension import Extension
+from distutils.util import get_platform
+from distutils import log
+if os.name == 'nt':
+from distutils.msvccompiler import get_build_version
+MSVC_VERSION = int(get_build_version())
+# An extension name is just a dot-separated list of Python NAMEs (ie.
+# the same as a fully-qualified module name).
+extension_name_re = re.compile \
+(r'^[a-zA-Z_][a-zA-Z_0-9]*(\.[a-zA-Z_][a-zA-Z_0-9]*)*$')
+def show_compilers ():
+from distutils.ccompiler import show_compilers
+show_compilers()
+class build_ext (Command):
+description = "build C/C++ extensions (compile/link to build directory)"
+# XXX thoughts on how to deal with complex command-line options like
+# these, i.e. how to make it so fancy_getopt can suck them off the
+# command line and make it look like setup.py defined the appropriate
+# lists of tuples of what-have-you.
+#   - each command needs a callback to process its command-line options
+#   - Command.__init__() needs access to its share of the whole
+#     command line (must ultimately come from
+#     Distribution.parse_command_line())
+#   - it then calls the current command class' option-parsing
+#     callback to deal with weird options like -D, which have to
+#     parse the option text and churn out some custom data
+#     structure
+#   - that data structure (in this case, a list of 2-tuples)
+#     will then be present in the command object by the time
+#     we get to finalize_options() (i.e. the constructor
+#     takes care of both command-line and client options
+#     in between initialize_options() and finalize_options())
+sep_by = " (separated by '%s')" % os.pathsep
+user_options = [
+('build-lib=', 'b',
+"directory for compiled extension modules"),
+('build-temp=', 't',
+"directory for temporary files (build by-products)"),
+('plat-name=', 'p',
+"platform name to cross-compile for, if supported "
+"(default: %s)" % get_platform()),
+('inplace', 'i',
+"ignore build-lib and put compiled extensions into the source " +
+"directory alongside your pure Python modules"),
+('include-dirs=', 'I',
+"list of directories to search for header files" + sep_by),
+('define=', 'D',
+"C preprocessor macros to define"),
+('undef=', 'U',
+"C preprocessor macros to undefine"),
+('libraries=', 'l',
+"external C libraries to link with"),
+('library-dirs=', 'L',
+"directories to search for external C libraries" + sep_by),
+('rpath=', 'R',
+"directories to search for shared C libraries at runtime"),
+('link-objects=', 'O',
+"extra explicit link objects to include in the link"),
+('debug', 'g',
+"compile/link with debugging information"),
+('force', 'f',
+"forcibly build everything (ignore file timestamps)"),
+('compiler=', 'c',
+"specify the compiler type"),
+('swig-cpp', None,
+"make SWIG create C++ files (default is C)"),
+('swig-opts=', None,
+"list of SWIG command line options"),
+('swig=', None,
+"path to the SWIG executable"),
+('user', None,
+"add user include, library and rpath"),
+]
+boolean_options = ['inplace', 'debug', 'force', 'swig-cpp', 'user']
+help_options = [
+('help-compiler', None,
+"list available compilers", show_compilers),
+]
+def initialize_options (self):
+self.extensions = None
+self.build_lib = None
+self.plat_name = None
+self.build_temp = None
+self.inplace = 0
+self.package = None
+self.include_dirs = None
+self.define = None
+self.undef = None
+self.libraries = None
+self.library_dirs = None
+self.rpath = None
+self.link_objects = None
+self.debug = None
+self.force = None
+self.compiler = None
+self.swig = None
+self.swig_cpp = None
+self.swig_opts = None
+self.user = None
+def finalize_options (self):
+from distutils import sysconfig
+self.set_undefined_options('build',
+('build_lib', 'build_lib'),
+('build_temp', 'build_temp'),
+('compiler', 'compiler'),
+('debug', 'debug'),
+('force', 'force'),
+('plat_name', 'plat_name'),
+)
+if self.package is None:
+self.package = self.distribution.ext_package
+self.extensions = self.distribution.ext_modules
+# Make sure Python's include directories (for Python.h, pyconfig.h,
+# etc.) are in the include search path.
+py_include = sysconfig.get_python_inc()
+plat_py_include = sysconfig.get_python_inc(plat_specific=1)
+if self.include_dirs is None:
+self.include_dirs = self.distribution.include_dirs or []
+if type(self.include_dirs) is StringType:
+self.include_dirs = string.split(self.include_dirs, os.pathsep)
+# Put the Python "system" include dir at the end, so that
+# any local include dirs take precedence.
+self.include_dirs.append(py_include)
+if plat_py_include != py_include:
+self.include_dirs.append(plat_py_include)
+if type(self.libraries) is StringType:
+self.libraries = [self.libraries]
+# Life is easier if we're not forever checking for None, so
+# simplify these options to empty lists if unset
+if self.libraries is None:
+self.libraries = []
+if self.library_dirs is None:
+self.library_dirs = []
+elif type(self.library_dirs) is StringType:
+self.library_dirs = string.split(self.library_dirs, os.pathsep)
+if self.rpath is None:
+self.rpath = []
+elif type(self.rpath) is StringType:
+self.rpath = string.split(self.rpath, os.pathsep)
+# for extensions under windows use different directories
+# for Release and Debug builds.
+# also Python's library directory must be appended to library_dirs
+if os.name == 'nt':
+# the 'libs' directory is for binary installs - we assume that
+# must be the *native* platform.  But we don't really support
+# cross-compiling via a binary install anyway, so we let it go.
+self.library_dirs.append(os.path.join(sys.exec_prefix, 'libs'))
+if self.debug:
+self.build_temp = os.path.join(self.build_temp, "Debug")
+else:
+self.build_temp = os.path.join(self.build_temp, "Release")
+# Append the source distribution include and library directories,
+# this allows distutils on windows to work in the source tree
+self.include_dirs.append(os.path.join(sys.exec_prefix, 'PC'))
+if MSVC_VERSION == 9:
+# Use the .lib files for the correct architecture
+if self.plat_name == 'win32':
+suffix = ''
+else:
+# win-amd64 or win-ia64
+suffix = self.plat_name[4:]
+new_lib = os.path.join(sys.exec_prefix, 'PCbuild')
+if suffix:
+new_lib = os.path.join(new_lib, suffix)
+self.library_dirs.append(new_lib)
+elif MSVC_VERSION == 8:
+self.library_dirs.append(os.path.join(sys.exec_prefix,
+'PC', 'VS8.0', 'win32release'))
+elif MSVC_VERSION == 7:
+self.library_dirs.append(os.path.join(sys.exec_prefix,
+'PC', 'VS7.1'))
+else:
+self.library_dirs.append(os.path.join(sys.exec_prefix,
+'PC', 'VC6'))
+# OS/2 (EMX) doesn't support Debug vs Release builds, but has the
+# import libraries in its "Config" subdirectory
+if os.name == 'os2':
+self.library_dirs.append(os.path.join(sys.exec_prefix, 'Config'))
+# for extensions under Cygwin and AtheOS Python's library directory must be
+# appended to library_dirs
+if sys.platform[:6] == 'cygwin' or sys.platform[:6] == 'atheos':
+if sys.executable.startswith(os.path.join(sys.exec_prefix, "bin")):
+# building third party extensions
+self.library_dirs.append(os.path.join(sys.prefix, "lib",
+"python" + get_python_version(),
+"config"))
+else:
+# building python standard extensions
+self.library_dirs.append('.')
+# for extensions under Linux with a shared Python library,
+# Python's library directory must be appended to library_dirs
+if (sys.platform.startswith('linux') or sys.platform.startswith('gnu')) \
+and sysconfig.get_config_var('Py_ENABLE_SHARED'):
+if sys.executable.startswith(os.path.join(sys.exec_prefix, "bin")):
+# building third party extensions
+self.library_dirs.append(sysconfig.get_config_var('LIBDIR'))
+else:
+# building python standard extensions
+self.library_dirs.append('.')
+# The argument parsing will result in self.define being a string, but
+# it has to be a list of 2-tuples.  All the preprocessor symbols
+# specified by the 'define' option will be set to '1'.  Multiple
+# symbols can be separated with commas.
+if self.define:
+defines = string.split(self.define, ',')
+self.define = map(lambda symbol: (symbol, '1'), defines)
+# The option for macros to undefine is also a string from the
+# option parsing, but has to be a list.  Multiple symbols can also
+# be separated with commas here.
+if self.undef:
+self.undef = string.split(self.undef, ',')
+if self.swig_opts is None:
+self.swig_opts = []
+else:
+self.swig_opts = self.swig_opts.split(' ')
+# Finally add the user include and library directories if requested
+if self.user:
+user_include = os.path.join(USER_BASE, "include")
+user_lib = os.path.join(USER_BASE, "lib")
+if os.path.isdir(user_include):
+self.include_dirs.append(user_include)
+if os.path.isdir(user_lib):
+self.library_dirs.append(user_lib)
+self.rpath.append(user_lib)
+# finalize_options ()
+def run (self):
+from distutils.ccompiler import new_compiler
+# 'self.extensions', as supplied by setup.py, is a list of
+# Extension instances.  See the documentation for Extension (in
+# distutils.extension) for details.
+#
+# For backwards compatibility with Distutils 0.8.2 and earlier, we
+# also allow the 'extensions' list to be a list of tuples:
+#    (ext_name, build_info)
+# where build_info is a dictionary containing everything that
+# Extension instances do except the name, with a few things being
+# differently named.  We convert these 2-tuples to Extension
+# instances as needed.
+if not self.extensions:
+return
+# If we were asked to build any C/C++ libraries, make sure that the
+# directory where we put them is in the library search path for
+# linking extensions.
+if self.distribution.has_c_libraries():
+build_clib = self.get_finalized_command('build_clib')
+self.libraries.extend(build_clib.get_library_names() or [])
+self.library_dirs.append(build_clib.build_clib)
+# Setup the CCompiler object that we'll use to do all the
+# compiling and linking
+self.compiler = new_compiler(compiler=self.compiler,
+verbose=self.verbose,
+dry_run=self.dry_run,
+force=self.force)
+customize_compiler(self.compiler)
+# If we are cross-compiling, init the compiler now (if we are not
+# cross-compiling, init would not hurt, but people may rely on
+# late initialization of compiler even if they shouldn't...)
+if os.name == 'nt' and self.plat_name != get_platform():
+self.compiler.initialize(self.plat_name)
+# And make sure that any compile/link-related options (which might
+# come from the command-line or from the setup script) are set in
+# that CCompiler object -- that way, they automatically apply to
+# all compiling and linking done here.
+if self.include_dirs is not None:
+self.compiler.set_include_dirs(self.include_dirs)
+if self.define is not None:
+# 'define' option is a list of (name,value) tuples
+for (name,value) in self.define:
+self.compiler.define_macro(name, value)
+if self.undef is not None:
+for macro in self.undef:
+self.compiler.undefine_macro(macro)
+if self.libraries is not None:
+self.compiler.set_libraries(self.libraries)
+if self.library_dirs is not None:
+self.compiler.set_library_dirs(self.library_dirs)
+if self.rpath is not None:
+self.compiler.set_runtime_library_dirs(self.rpath)
+if self.link_objects is not None:
+self.compiler.set_link_objects(self.link_objects)
+# Now actually compile and link everything.
+self.build_extensions()
+# run ()
+def check_extensions_list (self, extensions):
+"""Ensure that the list of extensions (presumably provided as a
+command option 'extensions') is valid, i.e. it is a list of
+Extension objects.  We also support the old-style list of 2-tuples,
+where the tuples are (ext_name, build_info), which are converted to
+Extension instances here.
+Raise DistutilsSetupError if the structure is invalid anywhere;
+just returns otherwise.
+"""
+if type(extensions) is not ListType:
+raise DistutilsSetupError, \
+"'ext_modules' option must be a list of Extension instances"
+for i in range(len(extensions)):
+ext = extensions[i]
+if isinstance(ext, Extension):
+continue                # OK! (assume type-checking done
+# by Extension constructor)
+(ext_name, build_info) = ext
+log.warn(("old-style (ext_name, build_info) tuple found in "
+"ext_modules for extension '%s'"
+"-- please convert to Extension instance" % ext_name))
+if type(ext) is not TupleType and len(ext) != 2:
+raise DistutilsSetupError, \
+("each element of 'ext_modules' option must be an "
+"Extension instance or 2-tuple")
+if not (type(ext_name) is StringType and
+extension_name_re.match(ext_name)):
+raise DistutilsSetupError, \
+("first element of each tuple in 'ext_modules' "
+"must be the extension name (a string)")
+if type(build_info) is not DictionaryType:
+raise DistutilsSetupError, \
+("second element of each tuple in 'ext_modules' "
+"must be a dictionary (build info)")
+# OK, the (ext_name, build_info) dict is type-safe: convert it
+# to an Extension instance.
+ext = Extension(ext_name, build_info['sources'])
+# Easy stuff: one-to-one mapping from dict elements to
+# instance attributes.
+for key in ('include_dirs',
+'library_dirs',
+'libraries',
+'extra_objects',
+'extra_compile_args',
+'extra_link_args'):
+val = build_info.get(key)
+if val is not None:
+setattr(ext, key, val)
+# Medium-easy stuff: same syntax/semantics, different names.
+ext.runtime_library_dirs = build_info.get('rpath')
+if 'def_file' in build_info:
+log.warn("'def_file' element of build info dict "
+"no longer supported")
+# Non-trivial stuff: 'macros' split into 'define_macros'
+# and 'undef_macros'.
+macros = build_info.get('macros')
+if macros:
+ext.define_macros = []
+ext.undef_macros = []
+for macro in macros:
+if not (type(macro) is TupleType and
+1 <= len(macro) <= 2):
+raise DistutilsSetupError, \
+("'macros' element of build info dict "
+"must be 1- or 2-tuple")
+if len(macro) == 1:
+ext.undef_macros.append(macro[0])
+elif len(macro) == 2:
+ext.define_macros.append(macro)
+extensions[i] = ext
+# for extensions
+# check_extensions_list ()
+def get_source_files (self):
+self.check_extensions_list(self.extensions)
+filenames = []
+# Wouldn't it be neat if we knew the names of header files too...
+for ext in self.extensions:
+filenames.extend(ext.sources)
+return filenames
+def get_outputs (self):
+# Sanity check the 'extensions' list -- can't assume this is being
+# done in the same run as a 'build_extensions()' call (in fact, we
+# can probably assume that it *isn't*!).
+self.check_extensions_list(self.extensions)
+# And build the list of output (built) filenames.  Note that this
+# ignores the 'inplace' flag, and assumes everything goes in the
+# "build" tree.
+outputs = []
+for ext in self.extensions:
+fullname = self.get_ext_fullname(ext.name)
+outputs.append(os.path.join(self.build_lib,
+self.get_ext_filename(fullname)))
+return outputs
+# get_outputs ()
+def build_extensions(self):
+# First, sanity-check the 'extensions' list
+self.check_extensions_list(self.extensions)
+for ext in self.extensions:
+self.build_extension(ext)
+def build_extension(self, ext):
+sources = ext.sources
+if sources is None or type(sources) not in (ListType, TupleType):
+raise DistutilsSetupError, \
+("in 'ext_modules' option (extension '%s'), " +
+"'sources' must be present and must be " +
+"a list of source filenames") % ext.name
+sources = list(sources)
+fullname = self.get_ext_fullname(ext.name)
+if self.inplace:
+# ignore build-lib -- put the compiled extension into
+# the source tree along with pure Python modules
+modpath = string.split(fullname, '.')
+package = string.join(modpath[0:-1], '.')
+base = modpath[-1]
+build_py = self.get_finalized_command('build_py')
+package_dir = build_py.get_package_dir(package)
+ext_filename = os.path.join(package_dir,
+self.get_ext_filename(base))
+else:
+ext_filename = os.path.join(self.build_lib,
+self.get_ext_filename(fullname))
+depends = sources + ext.depends
+if not (self.force or newer_group(depends, ext_filename, 'newer')):
+log.debug("skipping '%s' extension (up-to-date)", ext.name)
+return
+else:
+log.info("building '%s' extension", ext.name)
+# First, scan the sources for SWIG definition files (.i), run
+# SWIG on 'em to create .c files, and modify the sources list
+# accordingly.
+sources = self.swig_sources(sources, ext)
+# Next, compile the source code to object files.
+# XXX not honouring 'define_macros' or 'undef_macros' -- the
+# CCompiler API needs to change to accommodate this, and I
+# want to do one thing at a time!
+# Two possible sources for extra compiler arguments:
+#   - 'extra_compile_args' in Extension object
+#   - CFLAGS environment variable (not particularly
+#     elegant, but people seem to expect it and I
+#     guess it's useful)
+# The environment variable should take precedence, and
+# any sensible compiler will give precedence to later
+# command line args.  Hence we combine them in order:
+extra_args = ext.extra_compile_args or []
+macros = ext.define_macros[:]
+for undef in ext.undef_macros:
+macros.append((undef,))
+objects = self.compiler.compile(sources,
+output_dir=self.build_temp,
+macros=macros,
+include_dirs=ext.include_dirs,
+debug=self.debug,
+extra_postargs=extra_args,
+depends=ext.depends)
+# XXX -- this is a Vile HACK!
+#
+# The setup.py script for Python on Unix needs to be able to
+# get this list so it can perform all the clean up needed to
+# avoid keeping object files around when cleaning out a failed
+# build of an extension module.  Since Distutils does not
+# track dependencies, we have to get rid of intermediates to
+# ensure all the intermediates will be properly re-built.
+#
+self._built_objects = objects[:]
+# Now link the object files together into a "shared object" --
+# of course, first we have to figure out all the other things
+# that go into the mix.
+if ext.extra_objects:
+objects.extend(ext.extra_objects)
+extra_args = ext.extra_link_args or []
+# Detect target language, if not provided
+language = ext.language or self.compiler.detect_language(sources)
+self.compiler.link_shared_object(
+objects, ext_filename,
+libraries=self.get_libraries(ext),
+library_dirs=ext.library_dirs,
+runtime_library_dirs=ext.runtime_library_dirs,
+extra_postargs=extra_args,
+export_symbols=self.get_export_symbols(ext),
+debug=self.debug,
+build_temp=self.build_temp,
+target_lang=language)
+def swig_sources (self, sources, extension):
+"""Walk the list of source files in 'sources', looking for SWIG
+interface (.i) files.  Run SWIG on all that are found, and
+return a modified 'sources' list with SWIG source files replaced
+by the generated C (or C++) files.
+"""
+new_sources = []
+swig_sources = []
+swig_targets = {}
+# XXX this drops generated C/C++ files into the source tree, which
+# is fine for developers who want to distribute the generated
+# source -- but there should be an option to put SWIG output in
+# the temp dir.
+if self.swig_cpp:
+log.warn("--swig-cpp is deprecated - use --swig-opts=-c++")
+if self.swig_cpp or ('-c++' in self.swig_opts) or \
+('-c++' in extension.swig_opts):
+target_ext = '.cpp'
+else:
+target_ext = '.c'
+for source in sources:
+(base, ext) = os.path.splitext(source)
+if ext == ".i":             # SWIG interface file
+new_sources.append(base + '_wrap' + target_ext)
+swig_sources.append(source)
+swig_targets[source] = new_sources[-1]
+else:
+new_sources.append(source)
+if not swig_sources:
+return new_sources
+swig = self.swig or self.find_swig()
+swig_cmd = [swig, "-python"]
+swig_cmd.extend(self.swig_opts)
+if self.swig_cpp:
+swig_cmd.append("-c++")
+# Do not override commandline arguments
+if not self.swig_opts:
+for o in extension.swig_opts:
+swig_cmd.append(o)
+for source in swig_sources:
+target = swig_targets[source]
+log.info("swigging %s to %s", source, target)
+self.spawn(swig_cmd + ["-o", target, source])
+return new_sources
+# swig_sources ()
+def find_swig (self):
+"""Return the name of the SWIG executable.  On Unix, this is
+just "swig" -- it should be in the PATH.  Tries a bit harder on
+Windows.
+"""
+if os.name == "posix":
+return "swig"
+elif os.name == "nt":
+# Look for SWIG in its standard installation directory on
+# Windows (or so I presume!).  If we find it there, great;
+# if not, act like Unix and assume it's in the PATH.
+for vers in ("1.3", "1.2", "1.1"):
+fn = os.path.join("c:\\swig%s" % vers, "swig.exe")
+if os.path.isfile(fn):
+return fn
+else:
+return "swig.exe"
+elif os.name == "os2":
+# assume swig available in the PATH.
+return "swig.exe"
+else:
+raise DistutilsPlatformError, \
+("I don't know how to find (much less run) SWIG "
+"on platform '%s'") % os.name
+# find_swig ()
+# -- Name generators -----------------------------------------------
+# (extension names, filenames, whatever)
+def get_ext_fullname (self, ext_name):
+if self.package is None:
+return ext_name
+else:
+return self.package + '.' + ext_name
+def get_ext_filename (self, ext_name):
+r"""Convert the name of an extension (eg. "foo.bar") into the name
+of the file from which it will be loaded (eg. "foo/bar.so", or
+"foo\bar.pyd").
+"""
+from distutils.sysconfig import get_config_var
+ext_path = string.split(ext_name, '.')
+# OS/2 has an 8 character module (extension) limit :-(
+if os.name == "os2":
+ext_path[len(ext_path) - 1] = ext_path[len(ext_path) - 1][:8]
+# extensions in debug_mode are named 'module_d.pyd' under windows
+so_ext = get_config_var('SO')
+if os.name == 'nt' and self.debug:
+return apply(os.path.join, ext_path) + '_d' + so_ext
+return os.path.join(*ext_path) + so_ext
+def get_export_symbols (self, ext):
+"""Return the list of symbols that a shared extension has to
+export.  This either uses 'ext.export_symbols' or, if it's not
+provided, "init" + module_name.  Only relevant on Windows, where
+the .pyd file (DLL) must export the module "init" function.
+"""
+initfunc_name = "init" + string.split(ext.name,'.')[-1]
+if initfunc_name not in ext.export_symbols:
+ext.export_symbols.append(initfunc_name)
+return ext.export_symbols
+def get_libraries (self, ext):
+"""Return the list of libraries to link against when building a
+shared extension.  On most platforms, this is just 'ext.libraries';
+on Windows and OS/2, we add the Python library (eg. python20.dll).
+"""
+# The python library is always needed on Windows.  For MSVC, this
+# is redundant, since the library is mentioned in a pragma in
+# pyconfig.h that MSVC groks.  The other Windows compilers all seem
+# to need it mentioned explicitly, though, so that's what we do.
+# Append '_d' to the python import library on debug builds.
+if sys.platform == "win32":
+from distutils.msvccompiler import MSVCCompiler
+if not isinstance(self.compiler, MSVCCompiler):
+template = "python%d%d"
+if self.debug:
+template = template + '_d'
+pythonlib = (template %
+(sys.hexversion >> 24, (sys.hexversion >> 16) & 0xff))
+# don't extend ext.libraries, it may be shared with other
+# extensions, it is a reference to the original list
+return ext.libraries + [pythonlib]
+else:
+return ext.libraries
+elif sys.platform == "os2emx":
+# EMX/GCC requires the python library explicitly, and I
+# believe VACPP does as well (though not confirmed) - AIM Apr01
+template = "python%d%d"
+# debug versions of the main DLL aren't supported, at least
+# not at this time - AIM Apr01
+#if self.debug:
+#    template = template + '_d'
+pythonlib = (template %
+(sys.hexversion >> 24, (sys.hexversion >> 16) & 0xff))
+# don't extend ext.libraries, it may be shared with other
+# extensions, it is a reference to the original list
+return ext.libraries + [pythonlib]
+elif sys.platform[:6] == "cygwin":
+template = "python%d.%d"
+pythonlib = (template %
+(sys.hexversion >> 24, (sys.hexversion >> 16) & 0xff))
+# don't extend ext.libraries, it may be shared with other
+# extensions, it is a reference to the original list
+return ext.libraries + [pythonlib]
+elif sys.platform[:6] == "atheos":
+from distutils import sysconfig
+template = "python%d.%d"
+pythonlib = (template %
+(sys.hexversion >> 24, (sys.hexversion >> 16) & 0xff))
+# Get SHLIBS from Makefile
+extra = []
+for lib in sysconfig.get_config_var('SHLIBS').split():
+if lib.startswith('-l'):
+extra.append(lib[2:])
+else:
+extra.append(lib)
+# don't extend ext.libraries, it may be shared with other
+# extensions, it is a reference to the original list
+return ext.libraries + [pythonlib, "m"] + extra
+elif sys.platform == 'darwin':
+# Don't use the default code below
+return ext.libraries
+else:
+from distutils import sysconfig
+if sysconfig.get_config_var('Py_ENABLE_SHARED'):
+template = "python%d.%d"
+pythonlib = (template %
+(sys.hexversion >> 24, (sys.hexversion >> 16) & 0xff))
+return ext.libraries + [pythonlib]
+else:
+return ext.libraries
+# class build_ext