FM / distutils

/opt/alt/python27/lib64/python2.7/distutils/

/opt/alt/python27/lib64/python2.7/distutils

Name	Size	Mode	Actions
command/	-	0755	rm
archive_util.py	8219	0644	edit dl rm
archive_util.pyc	7705	0644	edit dl rm
archive_util.pyo	7705	0644	edit dl rm
bcppcompiler.py	14941	0644	edit dl rm
bcppcompiler.pyc	7999	0644	edit dl rm
bcppcompiler.pyo	7999	0644	edit dl rm
ccompiler.py	46726	0644	edit dl rm
ccompiler.pyc	37597	0644	edit dl rm
ccompiler.pyo	37456	0644	edit dl rm
cmd.py	19270	0644	edit dl rm
cmd.pyc	17285	0644	edit dl rm
cmd.pyo	17285	0644	edit dl rm
config.py	4134	0644	edit dl rm
config.pyc	3656	0644	edit dl rm
config.pyo	3656	0644	edit dl rm
core.py	9019	0644	edit dl rm
core.pyc	7588	0644	edit dl rm
core.pyo	7588	0644	edit dl rm
cygwinccompiler.py	17735	0644	edit dl rm
cygwinccompiler.pyc	9981	0644	edit dl rm
cygwinccompiler.pyo	9981	0644	edit dl rm
debug.py	162	0644	edit dl rm
debug.pyc	267	0644	edit dl rm
debug.pyo	267	0644	edit dl rm
dep_util.py	3509	0644	edit dl rm
dep_util.pyc	3232	0644	edit dl rm
dep_util.pyo	3232	0644	edit dl rm
dir_util.py	7868	0644	edit dl rm
dir_util.pyc	6877	0644	edit dl rm
dir_util.pyo	6877	0644	edit dl rm
dist.py	50049	0644	edit dl rm
dist.pyc	40047	0644	edit dl rm
dist.pyo	40047	0644	edit dl rm
emxccompiler.py	11931	0644	edit dl rm
emxccompiler.pyc	7584	0644	edit dl rm
emxccompiler.pyo	7584	0644	edit dl rm
errors.py	3494	0644	edit dl rm
errors.pyc	6545	0644	edit dl rm
errors.pyo	6545	0644	edit dl rm
extension.py	10904	0644	edit dl rm
extension.pyc	7464	0644	edit dl rm
extension.pyo	7238	0644	edit dl rm
fancy_getopt.py	17948	0644	edit dl rm
fancy_getopt.pyc	12231	0644	edit dl rm
fancy_getopt.pyo	12054	0644	edit dl rm
filelist.py	12689	0644	edit dl rm
filelist.pyc	10977	0644	edit dl rm
filelist.pyo	10977	0644	edit dl rm
file_util.py	8131	0644	edit dl rm
file_util.pyc	6815	0644	edit dl rm
file_util.pyo	6815	0644	edit dl rm
log.py	1686	0644	edit dl rm
log.pyc	2942	0644	edit dl rm
log.pyo	2942	0644	edit dl rm
msvc9compiler.py	31004	0644	edit dl rm
msvc9compiler.pyc	21900	0644	edit dl rm
msvc9compiler.pyo	21827	0644	edit dl rm
msvccompiler.py	23637	0644	edit dl rm
msvccompiler.pyc	17863	0644	edit dl rm
msvccompiler.pyo	17863	0644	edit dl rm
README	295	0644	edit dl rm
spawn.py	8648	0644	edit dl rm
spawn.pyc	6518	0644	edit dl rm
spawn.pyo	6518	0644	edit dl rm
sysconfig.py	17707	0644	edit dl rm
sysconfig.py.debug-build	17622	0644	edit dl rm
sysconfig.pyc	13609	0644	edit dl rm
sysconfig.pyo	13609	0644	edit dl rm
text_file.py	12428	0644	edit dl rm
text_file.pyc	9402	0644	edit dl rm
text_file.pyo	9402	0644	edit dl rm
unixccompiler.py	14222	0644	edit dl rm
unixccompiler.py.distutils-rpath	13677	0644	edit dl rm
unixccompiler.pyc	8385	0644	edit dl rm
unixccompiler.pyo	8385	0644	edit dl rm
util.py	18236	0644	edit dl rm
util.pyc	14568	0644	edit dl rm
util.pyo	14568	0644	edit dl rm
version.py	11433	0644	edit dl rm
version.pyc	7403	0644	edit dl rm
version.pyo	7403	0644	edit dl rm
versionpredicate.py	5095	0644	edit dl rm
versionpredicate.pyc	5633	0644	edit dl rm
versionpredicate.pyo	5633	0644	edit dl rm
__init__.py	236	0644	edit dl rm
__init__.pyc	428	0644	edit dl rm
__init__.pyo	428	0644	edit dl rm

Edit: /opt/alt/python27/lib64/python2.7/distutils/msvc9compiler.py (31004B)

"""distutils.msvc9compiler

Contains MSVCCompiler, an implementation of the abstract CCompiler class
for the Microsoft Visual Studio 2008.

The module is compatible with VS 2005 and VS 2008. You can find legacy support
for older versions of VS in distutils.msvccompiler.
"""

# Written by Perry Stoll
# hacked by Robin Becker and Thomas Heller to do a better job of
#   finding DevStudio (through the registry)
# ported to VS2005 and VS 2008 by Christian Heimes

__revision__ = "$Id$"

import os
import subprocess
import sys
import re

from distutils.errors import (DistutilsExecError, DistutilsPlatformError,
                              CompileError, LibError, LinkError)
from distutils.ccompiler import CCompiler, gen_lib_options
from distutils import log
from distutils.util import get_platform

import _winreg

RegOpenKeyEx = _winreg.OpenKeyEx
RegEnumKey = _winreg.EnumKey
RegEnumValue = _winreg.EnumValue
RegError = _winreg.error

HKEYS = (_winreg.HKEY_USERS,
         _winreg.HKEY_CURRENT_USER,
         _winreg.HKEY_LOCAL_MACHINE,
         _winreg.HKEY_CLASSES_ROOT)

NATIVE_WIN64 = (sys.platform == 'win32' and sys.maxsize > 2**32)
if NATIVE_WIN64:
    # Visual C++ is a 32-bit application, so we need to look in
    # the corresponding registry branch, if we're running a
    # 64-bit Python on Win64
    VS_BASE = r"Software\Wow6432Node\Microsoft\VisualStudio\%0.1f"
    VSEXPRESS_BASE = r"Software\Wow6432Node\Microsoft\VCExpress\%0.1f"
    WINSDK_BASE = r"Software\Wow6432Node\Microsoft\Microsoft SDKs\Windows"
    NET_BASE = r"Software\Wow6432Node\Microsoft\.NETFramework"
else:
    VS_BASE = r"Software\Microsoft\VisualStudio\%0.1f"
    VSEXPRESS_BASE = r"Software\Microsoft\VCExpress\%0.1f"
    WINSDK_BASE = r"Software\Microsoft\Microsoft SDKs\Windows"
    NET_BASE = r"Software\Microsoft\.NETFramework"

# A map keyed by get_platform() return values to values accepted by
# 'vcvarsall.bat'.  Note a cross-compile may combine these (eg, 'x86_amd64' is
# the param to cross-compile on x86 targeting amd64.)
PLAT_TO_VCVARS = {
    'win32' : 'x86',
    'win-amd64' : 'amd64',
    'win-ia64' : 'ia64',
}

class Reg:
    """Helper class to read values from the registry
    """

def get_value(cls, path, key):
        for base in HKEYS:
            d = cls.read_values(base, path)
            if d and key in d:
                return d[key]
        raise KeyError(key)
    get_value = classmethod(get_value)

def read_keys(cls, base, key):
        """Return list of registry keys."""
        try:
            handle = RegOpenKeyEx(base, key)
        except RegError:
            return None
        L = []
        i = 0
        while True:
            try:
                k = RegEnumKey(handle, i)
            except RegError:
                break
            L.append(k)
            i += 1
        return L
    read_keys = classmethod(read_keys)

def read_values(cls, base, key):
        """Return dict of registry keys and values.

All names are converted to lowercase.
        """
        try:
            handle = RegOpenKeyEx(base, key)
        except RegError:
            return None
        d = {}
        i = 0
        while True:
            try:
                name, value, type = RegEnumValue(handle, i)
            except RegError:
                break
            name = name.lower()
            d[cls.convert_mbcs(name)] = cls.convert_mbcs(value)
            i += 1
        return d
    read_values = classmethod(read_values)

def convert_mbcs(s):
        dec = getattr(s, "decode", None)
        if dec is not None:
            try:
                s = dec("mbcs")
            except UnicodeError:
                pass
        return s
    convert_mbcs = staticmethod(convert_mbcs)

class MacroExpander:

def __init__(self, version):
        self.macros = {}
        self.vsbase = VS_BASE % version
        self.load_macros(version)

def set_macro(self, macro, path, key):
        self.macros["$(%s)" % macro] = Reg.get_value(path, key)

def load_macros(self, version):
        self.set_macro("VCInstallDir", self.vsbase + r"\Setup\VC", "productdir")
        self.set_macro("VSInstallDir", self.vsbase + r"\Setup\VS", "productdir")
        self.set_macro("FrameworkDir", NET_BASE, "installroot")
        try:
            if version >= 8.0:
                self.set_macro("FrameworkSDKDir", NET_BASE,
                               "sdkinstallrootv2.0")
            else:
                raise KeyError("sdkinstallrootv2.0")
        except KeyError:
            raise DistutilsPlatformError(
            """Python was built with Visual Studio 2008;
extensions must be built with a compiler than can generate compatible binaries.
Visual Studio 2008 was not found on this system. If you have Cygwin installed,
you can try compiling with MingW32, by passing "-c mingw32" to setup.py.""")

if version >= 9.0:
            self.set_macro("FrameworkVersion", self.vsbase, "clr version")
            self.set_macro("WindowsSdkDir", WINSDK_BASE, "currentinstallfolder")
        else:
            p = r"Software\Microsoft\NET Framework Setup\Product"
            for base in HKEYS:
                try:
                    h = RegOpenKeyEx(base, p)
                except RegError:
                    continue
                key = RegEnumKey(h, 0)
                d = Reg.get_value(base, r"%s\%s" % (p, key))
                self.macros["$(FrameworkVersion)"] = d["version"]

def sub(self, s):
        for k, v in self.macros.items():
            s = s.replace(k, v)
        return s

def get_build_version():
    """Return the version of MSVC that was used to build Python.

For Python 2.3 and up, the version number is included in
    sys.version.  For earlier versions, assume the compiler is MSVC 6.
    """
    prefix = "MSC v."
    i = sys.version.find(prefix)
    if i == -1:
        return 6
    i = i + len(prefix)
    s, rest = sys.version[i:].split(" ", 1)
    majorVersion = int(s[:-2]) - 6
    minorVersion = int(s[2:3]) / 10.0
    # I don't think paths are affected by minor version in version 6
    if majorVersion == 6:
        minorVersion = 0
    if majorVersion >= 6:
        return majorVersion + minorVersion
    # else we don't know what version of the compiler this is
    return None

def normalize_and_reduce_paths(paths):
    """Return a list of normalized paths with duplicates removed.

The current order of paths is maintained.
    """
    # Paths are normalized so things like:  /a and /a/ aren't both preserved.
    reduced_paths = []
    for p in paths:
        np = os.path.normpath(p)
        # XXX(nnorwitz): O(n**2), if reduced_paths gets long perhaps use a set.
        if np not in reduced_paths:
            reduced_paths.append(np)
    return reduced_paths

def removeDuplicates(variable):
    """Remove duplicate values of an environment variable.
    """
    oldList = variable.split(os.pathsep)
    newList = []
    for i in oldList:
        if i not in newList:
            newList.append(i)
    newVariable = os.pathsep.join(newList)
    return newVariable

def find_vcvarsall(version):
    """Find the vcvarsall.bat file

At first it tries to find the productdir of VS 2008 in the registry. If
    that fails it falls back to the VS90COMNTOOLS env var.
    """
    vsbase = VS_BASE % version
    try:
        productdir = Reg.get_value(r"%s\Setup\VC" % vsbase,
                                   "productdir")
    except KeyError:
        productdir = None

# trying Express edition
    if productdir is None:
        vsbase = VSEXPRESS_BASE % version
        try:
            productdir = Reg.get_value(r"%s\Setup\VC" % vsbase,
                                       "productdir")
        except KeyError:
            productdir = None
            log.debug("Unable to find productdir in registry")

if not productdir or not os.path.isdir(productdir):
        toolskey = "VS%0.f0COMNTOOLS" % version
        toolsdir = os.environ.get(toolskey, None)

if toolsdir and os.path.isdir(toolsdir):
            productdir = os.path.join(toolsdir, os.pardir, os.pardir, "VC")
            productdir = os.path.abspath(productdir)
            if not os.path.isdir(productdir):
                log.debug("%s is not a valid directory" % productdir)
                return None
        else:
            log.debug("Env var %s is not set or invalid" % toolskey)
    if not productdir:
        log.debug("No productdir found")
        return None
    vcvarsall = os.path.join(productdir, "vcvarsall.bat")
    if os.path.isfile(vcvarsall):
        return vcvarsall
    log.debug("Unable to find vcvarsall.bat")
    return None

def query_vcvarsall(version, arch="x86"):
    """Launch vcvarsall.bat and read the settings from its environment
    """
    vcvarsall = find_vcvarsall(version)
    interesting = set(("include", "lib", "libpath", "path"))
    result = {}

if vcvarsall is None:
        raise DistutilsPlatformError("Unable to find vcvarsall.bat")
    log.debug("Calling 'vcvarsall.bat %s' (version=%s)", arch, version)
    popen = subprocess.Popen('"%s" %s & set' % (vcvarsall, arch),
                             stdout=subprocess.PIPE,
                             stderr=subprocess.PIPE)
    try:
        stdout, stderr = popen.communicate()
        if popen.wait() != 0:
            raise DistutilsPlatformError(stderr.decode("mbcs"))

stdout = stdout.decode("mbcs")
        for line in stdout.split("\n"):
            line = Reg.convert_mbcs(line)
            if '=' not in line:
                continue
            line = line.strip()
            key, value = line.split('=', 1)
            key = key.lower()
            if key in interesting:
                if value.endswith(os.pathsep):
                    value = value[:-1]
                result[key] = removeDuplicates(value)

finally:
        popen.stdout.close()
        popen.stderr.close()

if len(result) != len(interesting):
        raise ValueError(str(list(result.keys())))

return result

# More globals
VERSION = get_build_version()
if VERSION < 8.0:
    raise DistutilsPlatformError("VC %0.1f is not supported by this module" % VERSION)
# MACROS = MacroExpander(VERSION)

class MSVCCompiler(CCompiler) :
    """Concrete class that implements an interface to Microsoft Visual C++,
       as defined by the CCompiler abstract class."""

compiler_type = 'msvc'

# Just set this so CCompiler's constructor doesn't barf.  We currently
    # don't use the 'set_executables()' bureaucracy provided by CCompiler,
    # as it really isn't necessary for this sort of single-compiler class.
    # Would be nice to have a consistent interface with UnixCCompiler,
    # though, so it's worth thinking about.
    executables = {}

# Private class data (need to distinguish C from C++ source for compiler)
    _c_extensions = ['.c']
    _cpp_extensions = ['.cc', '.cpp', '.cxx']
    _rc_extensions = ['.rc']
    _mc_extensions = ['.mc']

# Needed for the filename generation methods provided by the
    # base class, CCompiler.
    src_extensions = (_c_extensions + _cpp_extensions +
                      _rc_extensions + _mc_extensions)
    res_extension = '.res'
    obj_extension = '.obj'
    static_lib_extension = '.lib'
    shared_lib_extension = '.dll'
    static_lib_format = shared_lib_format = '%s%s'
    exe_extension = '.exe'

def __init__(self, verbose=0, dry_run=0, force=0):
        CCompiler.__init__ (self, verbose, dry_run, force)
        self.__version = VERSION
        self.__root = r"Software\Microsoft\VisualStudio"
        # self.__macros = MACROS
        self.__paths = []
        # target platform (.plat_name is consistent with 'bdist')
        self.plat_name = None
        self.__arch = None # deprecated name
        self.initialized = False

def initialize(self, plat_name=None):
        # multi-init means we would need to check platform same each time...
        assert not self.initialized, "don't init multiple times"
        if plat_name is None:
            plat_name = get_platform()
        # sanity check for platforms to prevent obscure errors later.
        ok_plats = 'win32', 'win-amd64', 'win-ia64'
        if plat_name not in ok_plats:
            raise DistutilsPlatformError("--plat-name must be one of %s" %
                                         (ok_plats,))

if "DISTUTILS_USE_SDK" in os.environ and "MSSdk" in os.environ and self.find_exe("cl.exe"):
            # Assume that the SDK set up everything alright; don't try to be
            # smarter
            self.cc = "cl.exe"
            self.linker = "link.exe"
            self.lib = "lib.exe"
            self.rc = "rc.exe"
            self.mc = "mc.exe"
        else:
            # On x86, 'vcvars32.bat amd64' creates an env that doesn't work;
            # to cross compile, you use 'x86_amd64'.
            # On AMD64, 'vcvars32.bat amd64' is a native build env; to cross
            # compile use 'x86' (ie, it runs the x86 compiler directly)
            # No idea how itanium handles this, if at all.
            if plat_name == get_platform() or plat_name == 'win32':
                # native build or cross-compile to win32
                plat_spec = PLAT_TO_VCVARS[plat_name]
            else:
                # cross compile from win32 -> some 64bit
                plat_spec = PLAT_TO_VCVARS[get_platform()] + '_' + \
                            PLAT_TO_VCVARS[plat_name]

vc_env = query_vcvarsall(VERSION, plat_spec)

# take care to only use strings in the environment.
            self.__paths = vc_env['path'].encode('mbcs').split(os.pathsep)
            os.environ['lib'] = vc_env['lib'].encode('mbcs')
            os.environ['include'] = vc_env['include'].encode('mbcs')

if len(self.__paths) == 0:
                raise DistutilsPlatformError("Python was built with %s, "
                       "and extensions need to be built with the same "
                       "version of the compiler, but it isn't installed."
                       % self.__product)

self.cc = self.find_exe("cl.exe")
            self.linker = self.find_exe("link.exe")
            self.lib = self.find_exe("lib.exe")
            self.rc = self.find_exe("rc.exe")   # resource compiler
            self.mc = self.find_exe("mc.exe")   # message compiler
            #self.set_path_env_var('lib')
            #self.set_path_env_var('include')

# extend the MSVC path with the current path
        try:
            for p in os.environ['path'].split(';'):
                self.__paths.append(p)
        except KeyError:
            pass
        self.__paths = normalize_and_reduce_paths(self.__paths)
        os.environ['path'] = ";".join(self.__paths)

self.preprocess_options = None
        if self.__arch == "x86":
            self.compile_options = [ '/nologo', '/Ox', '/MD', '/W3',
                                     '/DNDEBUG']
            self.compile_options_debug = ['/nologo', '/Od', '/MDd', '/W3',
                                          '/Z7', '/D_DEBUG']
        else:
            # Win64
            self.compile_options = [ '/nologo', '/Ox', '/MD', '/W3', '/GS-' ,
                                     '/DNDEBUG']
            self.compile_options_debug = ['/nologo', '/Od', '/MDd', '/W3', '/GS-',
                                          '/Z7', '/D_DEBUG']

self.ldflags_shared = ['/DLL', '/nologo', '/INCREMENTAL:NO']
        if self.__version >= 7:
            self.ldflags_shared_debug = [
                '/DLL', '/nologo', '/INCREMENTAL:no', '/DEBUG'
                ]
        self.ldflags_static = [ '/nologo']

self.initialized = True

# -- Worker methods ------------------------------------------------

def object_filenames(self,
                         source_filenames,
                         strip_dir=0,
                         output_dir=''):
        # Copied from ccompiler.py, extended to return .res as 'object'-file
        # for .rc input file
        if output_dir is None: output_dir = ''
        obj_names = []
        for src_name in source_filenames:
            (base, ext) = os.path.splitext (src_name)
            base = os.path.splitdrive(base)[1] # Chop off the drive
            base = base[os.path.isabs(base):]  # If abs, chop off leading /
            if ext not in self.src_extensions:
                # Better to raise an exception instead of silently continuing
                # and later complain about sources and targets having
                # different lengths
                raise CompileError ("Don't know how to compile %s" % src_name)
            if strip_dir:
                base = os.path.basename (base)
            if ext in self._rc_extensions:
                obj_names.append (os.path.join (output_dir,
                                                base + self.res_extension))
            elif ext in self._mc_extensions:
                obj_names.append (os.path.join (output_dir,
                                                base + self.res_extension))
            else:
                obj_names.append (os.path.join (output_dir,
                                                base + self.obj_extension))
        return obj_names

def compile(self, sources,
                output_dir=None, macros=None, include_dirs=None, debug=0,
                extra_preargs=None, extra_postargs=None, depends=None):

if not self.initialized:
            self.initialize()
        compile_info = self._setup_compile(output_dir, macros, include_dirs,
                                           sources, depends, extra_postargs)
        macros, objects, extra_postargs, pp_opts, build = compile_info

compile_opts = extra_preargs or []
        compile_opts.append ('/c')
        if debug:
            compile_opts.extend(self.compile_options_debug)
        else:
            compile_opts.extend(self.compile_options)

for obj in objects:
            try:
                src, ext = build[obj]
            except KeyError:
                continue
            if debug:
                # pass the full pathname to MSVC in debug mode,
                # this allows the debugger to find the source file
                # without asking the user to browse for it
                src = os.path.abspath(src)

if ext in self._c_extensions:
                input_opt = "/Tc" + src
            elif ext in self._cpp_extensions:
                input_opt = "/Tp" + src
            elif ext in self._rc_extensions:
                # compile .RC to .RES file
                input_opt = src
                output_opt = "/fo" + obj
                try:
                    self.spawn([self.rc] + pp_opts +
                               [output_opt] + [input_opt])
                except DistutilsExecError, msg:
                    raise CompileError(msg)
                continue
            elif ext in self._mc_extensions:
                # Compile .MC to .RC file to .RES file.
                #   * '-h dir' specifies the directory for the
                #     generated include file
                #   * '-r dir' specifies the target directory of the
                #     generated RC file and the binary message resource
                #     it includes
                #
                # For now (since there are no options to change this),
                # we use the source-directory for the include file and
                # the build directory for the RC file and message
                # resources. This works at least for win32all.
                h_dir = os.path.dirname(src)
                rc_dir = os.path.dirname(obj)
                try:
                    # first compile .MC to .RC and .H file
                    self.spawn([self.mc] +
                               ['-h', h_dir, '-r', rc_dir] + [src])
                    base, _ = os.path.splitext (os.path.basename (src))
                    rc_file = os.path.join (rc_dir, base + '.rc')
                    # then compile .RC to .RES file
                    self.spawn([self.rc] +
                               ["/fo" + obj] + [rc_file])

except DistutilsExecError, msg:
                    raise CompileError(msg)
                continue
            else:
                # how to handle this file?
                raise CompileError("Don't know how to compile %s to %s"
                                   % (src, obj))

output_opt = "/Fo" + obj
            try:
                self.spawn([self.cc] + compile_opts + pp_opts +
                           [input_opt, output_opt] +
                           extra_postargs)
            except DistutilsExecError, msg:
                raise CompileError(msg)

return objects

def create_static_lib(self,
                          objects,
                          output_libname,
                          output_dir=None,
                          debug=0,
                          target_lang=None):

if not self.initialized:
            self.initialize()
        (objects, output_dir) = self._fix_object_args(objects, output_dir)
        output_filename = self.library_filename(output_libname,
                                                output_dir=output_dir)

if self._need_link(objects, output_filename):
            lib_args = objects + ['/OUT:' + output_filename]
            if debug:
                pass # XXX what goes here?
            try:
                self.spawn([self.lib] + lib_args)
            except DistutilsExecError, msg:
                raise LibError(msg)
        else:
            log.debug("skipping %s (up-to-date)", output_filename)

def link(self,
             target_desc,
             objects,
             output_filename,
             output_dir=None,
             libraries=None,
             library_dirs=None,
             runtime_library_dirs=None,
             export_symbols=None,
             debug=0,
             extra_preargs=None,
             extra_postargs=None,
             build_temp=None,
             target_lang=None):

if not self.initialized:
            self.initialize()
        (objects, output_dir) = self._fix_object_args(objects, output_dir)
        fixed_args = self._fix_lib_args(libraries, library_dirs,
                                        runtime_library_dirs)
        (libraries, library_dirs, runtime_library_dirs) = fixed_args

if runtime_library_dirs:
            self.warn ("I don't know what to do with 'runtime_library_dirs': "
                       + str (runtime_library_dirs))

lib_opts = gen_lib_options(self,
                                   library_dirs, runtime_library_dirs,
                                   libraries)
        if output_dir is not None:
            output_filename = os.path.join(output_dir, output_filename)

if self._need_link(objects, output_filename):
            if target_desc == CCompiler.EXECUTABLE:
                if debug:
                    ldflags = self.ldflags_shared_debug[1:]
                else:
                    ldflags = self.ldflags_shared[1:]
            else:
                if debug:
                    ldflags = self.ldflags_shared_debug
                else:
                    ldflags = self.ldflags_shared

export_opts = []
            for sym in (export_symbols or []):
                export_opts.append("/EXPORT:" + sym)

ld_args = (ldflags + lib_opts + export_opts +
                       objects + ['/OUT:' + output_filename])

# The MSVC linker generates .lib and .exp files, which cannot be
            # suppressed by any linker switches. The .lib files may even be
            # needed! Make sure they are generated in the temporary build
            # directory. Since they have different names for debug and release
            # builds, they can go into the same directory.
            build_temp = os.path.dirname(objects[0])
            if export_symbols is not None:
                (dll_name, dll_ext) = os.path.splitext(
                    os.path.basename(output_filename))
                implib_file = os.path.join(
                    build_temp,
                    self.library_filename(dll_name))
                ld_args.append ('/IMPLIB:' + implib_file)

self.manifest_setup_ldargs(output_filename, build_temp, ld_args)

if extra_preargs:
                ld_args[:0] = extra_preargs
            if extra_postargs:
                ld_args.extend(extra_postargs)

self.mkpath(os.path.dirname(output_filename))
            try:
                self.spawn([self.linker] + ld_args)
            except DistutilsExecError, msg:
                raise LinkError(msg)

# embed the manifest
            # XXX - this is somewhat fragile - if mt.exe fails, distutils
            # will still consider the DLL up-to-date, but it will not have a
            # manifest.  Maybe we should link to a temp file?  OTOH, that
            # implies a build environment error that shouldn't go undetected.
            mfinfo = self.manifest_get_embed_info(target_desc, ld_args)
            if mfinfo is not None:
                mffilename, mfid = mfinfo
                out_arg = '-outputresource:%s;%s' % (output_filename, mfid)
                try:
                    self.spawn(['mt.exe', '-nologo', '-manifest',
                                mffilename, out_arg])
                except DistutilsExecError, msg:
                    raise LinkError(msg)
        else:
            log.debug("skipping %s (up-to-date)", output_filename)

def manifest_setup_ldargs(self, output_filename, build_temp, ld_args):
        # If we need a manifest at all, an embedded manifest is recommended.
        # See MSDN article titled
        # "How to: Embed a Manifest Inside a C/C++ Application"
        # (currently at http://msdn2.microsoft.com/en-us/library/ms235591(VS.80).aspx)
        # Ask the linker to generate the manifest in the temp dir, so
        # we can check it, and possibly embed it, later.
        temp_manifest = os.path.join(
                build_temp,
                os.path.basename(output_filename) + ".manifest")
        ld_args.append('/MANIFESTFILE:' + temp_manifest)

def manifest_get_embed_info(self, target_desc, ld_args):
        # If a manifest should be embedded, return a tuple of
        # (manifest_filename, resource_id).  Returns None if no manifest
        # should be embedded.  See http://bugs.python.org/issue7833 for why
        # we want to avoid any manifest for extension modules if we can)
        for arg in ld_args:
            if arg.startswith("/MANIFESTFILE:"):
                temp_manifest = arg.split(":", 1)[1]
                break
        else:
            # no /MANIFESTFILE so nothing to do.
            return None
        if target_desc == CCompiler.EXECUTABLE:
            # by default, executables always get the manifest with the
            # CRT referenced.
            mfid = 1
        else:
            # Extension modules try and avoid any manifest if possible.
            mfid = 2
            temp_manifest = self._remove_visual_c_ref(temp_manifest)
        if temp_manifest is None:
            return None
        return temp_manifest, mfid

def _remove_visual_c_ref(self, manifest_file):
        try:
            # Remove references to the Visual C runtime, so they will
            # fall through to the Visual C dependency of Python.exe.
            # This way, when installed for a restricted user (e.g.
            # runtimes are not in WinSxS folder, but in Python's own
            # folder), the runtimes do not need to be in every folder
            # with .pyd's.
            # Returns either the filename of the modified manifest or
            # None if no manifest should be embedded.
            manifest_f = open(manifest_file)
            try:
                manifest_buf = manifest_f.read()
            finally:
                manifest_f.close()
            pattern = re.compile(
                r"""<assemblyIdentity.*?name=("|')Microsoft\."""\
                r"""VC\d{2}\.CRT("|').*?(/>|</assemblyIdentity>)""",
                re.DOTALL)
            manifest_buf = re.sub(pattern, "", manifest_buf)
            pattern = "<dependentAssembly>\s*</dependentAssembly>"
            manifest_buf = re.sub(pattern, "", manifest_buf)
            # Now see if any other assemblies are referenced - if not, we
            # don't want a manifest embedded.
            pattern = re.compile(
                r"""<assemblyIdentity.*?name=(?:"|')(.+?)(?:"|')"""
                r""".*?(?:/>|</assemblyIdentity>)""", re.DOTALL)
            if re.search(pattern, manifest_buf) is None:
                return None

manifest_f = open(manifest_file, 'w')
            try:
                manifest_f.write(manifest_buf)
                return manifest_file
            finally:
                manifest_f.close()
        except IOError:
            pass

# -- Miscellaneous methods -----------------------------------------
    # These are all used by the 'gen_lib_options() function, in
    # ccompiler.py.

def library_dir_option(self, dir):
        return "/LIBPATH:" + dir

def runtime_library_dir_option(self, dir):
        raise DistutilsPlatformError(
              "don't know how to set runtime library search path for MSVC++")

def library_option(self, lib):
        return self.library_filename(lib)

def find_library_file(self, dirs, lib, debug=0):
        # Prefer a debugging library if found (and requested), but deal
        # with it if we don't have one.
        if debug:
            try_names = [lib + "_d", lib]
        else:
            try_names = [lib]
        for dir in dirs:
            for name in try_names:
                libfile = os.path.join(dir, self.library_filename (name))
                if os.path.exists(libfile):
                    return libfile
        else:
            # Oops, didn't find it in *any* of 'dirs'
            return None

# Helper methods for using the MSVC registry settings

def find_exe(self, exe):
        """Return path to an MSVC executable program.

Tries to find the program in several places: first, one of the
        MSVC program search paths from the registry; next, the directories
        in the PATH environment variable.  If any of those work, return an
        absolute path that is known to exist.  If none of them work, just
        return the original program name, 'exe'.
        """
        for p in self.__paths:
            fn = os.path.join(os.path.abspath(p), exe)
            if os.path.isfile(fn):
                return fn

# didn't find it; try existing path
        for p in os.environ['Path'].split(';'):
            fn = os.path.join(os.path.abspath(p),exe)
            if os.path.isfile(fn):
                return fn

return exe

cmd: