python-3.6.zip added from Github

README.cosmo contains the necessary links.

third_party/python/Lib/distutils/_msvccompiler.py

@@ -0,0 +1,574 @@
+"""distutils._msvccompiler
+
+Contains MSVCCompiler, an implementation of the abstract CCompiler class
+for Microsoft Visual Studio 2015.
+
+The module is compatible with VS 2015 and later. You can find legacy support
+for older versions in distutils.msvc9compiler and 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 VS 2005 and VS 2008 by Christian Heimes
+# ported to VS 2015 by Steve Dower
+
+import os
+import shutil
+import stat
+import subprocess
+import winreg
+
+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
+
+from itertools import count
+
+def _find_vc2015():
+    try:
+        key = winreg.OpenKeyEx(
+            winreg.HKEY_LOCAL_MACHINE,
+            r"Software\Microsoft\VisualStudio\SxS\VC7",
+            access=winreg.KEY_READ | winreg.KEY_WOW64_32KEY
+        )
+    except OSError:
+        log.debug("Visual C++ is not registered")
+        return None, None
+
+    best_version = 0
+    best_dir = None
+    with key:
+        for i in count():
+            try:
+                v, vc_dir, vt = winreg.EnumValue(key, i)
+            except OSError:
+                break
+            if v and vt == winreg.REG_SZ and os.path.isdir(vc_dir):
+                try:
+                    version = int(float(v))
+                except (ValueError, TypeError):
+                    continue
+                if version >= 14 and version > best_version:
+                    best_version, best_dir = version, vc_dir
+    return best_version, best_dir
+
+def _find_vc2017():
+    import _distutils_findvs
+    import threading
+
+    best_version = 0,   # tuple for full version comparisons
+    best_dir = None
+
+    # We need to call findall() on its own thread because it will
+    # initialize COM.
+    all_packages = []
+    def _getall():
+        all_packages.extend(_distutils_findvs.findall())
+    t = threading.Thread(target=_getall)
+    t.start()
+    t.join()
+
+    for name, version_str, path, packages in all_packages:
+        if 'Microsoft.VisualStudio.Component.VC.Tools.x86.x64' in packages:
+            vc_dir = os.path.join(path, 'VC', 'Auxiliary', 'Build')
+            if not os.path.isdir(vc_dir):
+                continue
+            try:
+                version = tuple(int(i) for i in version_str.split('.'))
+            except (ValueError, TypeError):
+                continue
+            if version > best_version:
+                best_version, best_dir = version, vc_dir
+    try:
+        best_version = best_version[0]
+    except IndexError:
+        best_version = None
+    return best_version, best_dir
+
+def _find_vcvarsall(plat_spec):
+    best_version, best_dir = _find_vc2017()
+    vcruntime = None
+    vcruntime_plat = 'x64' if 'amd64' in plat_spec else 'x86'
+    if best_version:
+        vcredist = os.path.join(best_dir, "..", "..", "redist", "MSVC", "**",
+            "Microsoft.VC141.CRT", "vcruntime140.dll")
+        try:
+            import glob
+            vcruntime = glob.glob(vcredist, recursive=True)[-1]
+        except (ImportError, OSError, LookupError):
+            vcruntime = None
+
+    if not best_version:
+        best_version, best_dir = _find_vc2015()
+        if best_version:
+            vcruntime = os.path.join(best_dir, 'redist', vcruntime_plat,
+                "Microsoft.VC140.CRT", "vcruntime140.dll")
+
+    if not best_version:
+        log.debug("No suitable Visual C++ version found")
+        return None, None
+
+    vcvarsall = os.path.join(best_dir, "vcvarsall.bat")
+    if not os.path.isfile(vcvarsall):
+        log.debug("%s cannot be found", vcvarsall)
+        return None, None
+
+    if not vcruntime or not os.path.isfile(vcruntime):
+        log.debug("%s cannot be found", vcruntime)
+        vcruntime = None
+
+    return vcvarsall, vcruntime
+
+def _get_vc_env(plat_spec):
+    if os.getenv("DISTUTILS_USE_SDK"):
+        return {
+            key.lower(): value
+            for key, value in os.environ.items()
+        }
+
+    vcvarsall, vcruntime = _find_vcvarsall(plat_spec)
+    if not vcvarsall:
+        raise DistutilsPlatformError("Unable to find vcvarsall.bat")
+
+    try:
+        out = subprocess.check_output(
+            'cmd /u /c "{}" {} && set'.format(vcvarsall, plat_spec),
+            stderr=subprocess.STDOUT,
+        ).decode('utf-16le', errors='replace')
+    except subprocess.CalledProcessError as exc:
+        log.error(exc.output)
+        raise DistutilsPlatformError("Error executing {}"
+                .format(exc.cmd))
+
+    env = {
+        key.lower(): value
+        for key, _, value in
+        (line.partition('=') for line in out.splitlines())
+        if key and value
+    }
+
+    if vcruntime:
+        env['py_vcruntime_redist'] = vcruntime
+    return env
+
+def _find_exe(exe, paths=None):
+    """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'.
+    """
+    if not paths:
+        paths = os.getenv('path').split(os.pathsep)
+    for p in paths:
+        fn = os.path.join(os.path.abspath(p), exe)
+        if os.path.isfile(fn):
+            return fn
+    return exe
+
+# A map keyed by get_platform() return values to values accepted by
+# 'vcvarsall.bat'. Always cross-compile from x86 to work with the
+# lighter-weight MSVC installs that do not include native 64-bit tools.
+PLAT_TO_VCVARS = {
+    'win32' : 'x86',
+    'win-amd64' : 'x86_amd64',
+}
+
+# A set containing the DLLs that are guaranteed to be available for
+# all micro versions of this Python version. Known extension
+# dependencies that are not in this set will be copied to the output
+# path.
+_BUNDLED_DLLS = frozenset(['vcruntime140.dll'])
+
+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)
+        # target platform (.plat_name is consistent with 'bdist')
+        self.plat_name = None
+        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.
+        if plat_name not in PLAT_TO_VCVARS:
+            raise DistutilsPlatformError("--plat-name must be one of {}"
+                                         .format(tuple(PLAT_TO_VCVARS)))
+
+        # Get the vcvarsall.bat spec for the requested platform.
+        plat_spec = PLAT_TO_VCVARS[plat_name]
+
+        vc_env = _get_vc_env(plat_spec)
+        if not vc_env:
+            raise DistutilsPlatformError("Unable to find a compatible "
+                "Visual Studio installation.")
+
+        self._paths = vc_env.get('path', '')
+        paths = self._paths.split(os.pathsep)
+        self.cc = _find_exe("cl.exe", paths)
+        self.linker = _find_exe("link.exe", paths)
+        self.lib = _find_exe("lib.exe", paths)
+        self.rc = _find_exe("rc.exe", paths)   # resource compiler
+        self.mc = _find_exe("mc.exe", paths)   # message compiler
+        self.mt = _find_exe("mt.exe", paths)   # message compiler
+        self._vcruntime_redist = vc_env.get('py_vcruntime_redist', '')
+
+        for dir in vc_env.get('include', '').split(os.pathsep):
+            if dir:
+                self.add_include_dir(dir.rstrip(os.sep))
+
+        for dir in vc_env.get('lib', '').split(os.pathsep):
+            if dir:
+                self.add_library_dir(dir.rstrip(os.sep))
+
+        self.preprocess_options = None
+        # If vcruntime_redist is available, link against it dynamically. Otherwise,
+        # use /MT[d] to build statically, then switch from libucrt[d].lib to ucrt[d].lib
+        # later to dynamically link to ucrtbase but not vcruntime.
+        self.compile_options = [
+            '/nologo', '/Ox', '/W3', '/GL', '/DNDEBUG'
+        ]
+        self.compile_options.append('/MD' if self._vcruntime_redist else '/MT')
+
+        self.compile_options_debug = [
+            '/nologo', '/Od', '/MDd', '/Zi', '/W3', '/D_DEBUG'
+        ]
+
+        ldflags = [
+            '/nologo', '/INCREMENTAL:NO', '/LTCG'
+        ]
+        if not self._vcruntime_redist:
+            ldflags.extend(('/nodefaultlib:libucrt.lib', 'ucrt.lib'))
+
+        ldflags_debug = [
+            '/nologo', '/INCREMENTAL:NO', '/LTCG', '/DEBUG:FULL'
+        ]
+
+        self.ldflags_exe = [*ldflags, '/MANIFEST:EMBED,ID=1']
+        self.ldflags_exe_debug = [*ldflags_debug, '/MANIFEST:EMBED,ID=1']
+        self.ldflags_shared = [*ldflags, '/DLL', '/MANIFEST:EMBED,ID=2', '/MANIFESTUAC:NO']
+        self.ldflags_shared_debug = [*ldflags_debug, '/DLL', '/MANIFEST:EMBED,ID=2', '/MANIFESTUAC:NO']
+        self.ldflags_static = [*ldflags]
+        self.ldflags_static_debug = [*ldflags_debug]
+
+        self._ldflags = {
+            (CCompiler.EXECUTABLE, None): self.ldflags_exe,
+            (CCompiler.EXECUTABLE, False): self.ldflags_exe,
+            (CCompiler.EXECUTABLE, True): self.ldflags_exe_debug,
+            (CCompiler.SHARED_OBJECT, None): self.ldflags_shared,
+            (CCompiler.SHARED_OBJECT, False): self.ldflags_shared,
+            (CCompiler.SHARED_OBJECT, True): self.ldflags_shared_debug,
+            (CCompiler.SHARED_LIBRARY, None): self.ldflags_static,
+            (CCompiler.SHARED_LIBRARY, False): self.ldflags_static,
+            (CCompiler.SHARED_LIBRARY, True): self.ldflags_static_debug,
+        }
+
+        self.initialized = True
+
+    # -- Worker methods ------------------------------------------------
+
+    def object_filenames(self,
+                         source_filenames,
+                         strip_dir=0,
+                         output_dir=''):
+        ext_map = {
+            **{ext: self.obj_extension for ext in self.src_extensions},
+            **{ext: self.res_extension for ext in self._rc_extensions + self._mc_extensions},
+        }
+
+        output_dir = output_dir or ''
+
+        def make_out_path(p):
+            base, ext = os.path.splitext(p)
+            if strip_dir:
+                base = os.path.basename(base)
+            else:
+                _, base = os.path.splitdrive(base)
+                if base.startswith((os.path.sep, os.path.altsep)):
+                    base = base[1:]
+            try:
+                # XXX: This may produce absurdly long paths. We should check
+                # the length of the result and trim base until we fit within
+                # 260 characters.
+                return os.path.join(output_dir, base + ext_map[ext])
+            except LookupError:
+                # 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 {}".format(p))
+
+        return list(map(make_out_path, source_filenames))
+
+
+    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)
+
+
+        add_cpp_opts = False
+
+        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
+                add_cpp_opts = True
+            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 as 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 as msg:
+                    raise CompileError(msg)
+                continue
+            else:
+                # how to handle this file?
+                raise CompileError("Don't know how to compile {} to {}"
+                                   .format(src, obj))
+
+            args = [self.cc] + compile_opts + pp_opts
+            if add_cpp_opts:
+                args.append('/EHsc')
+            args.append(input_opt)
+            args.append("/Fo" + obj)
+            args.extend(extra_postargs)
+
+            try:
+                self.spawn(args)
+            except DistutilsExecError as 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:
+                log.debug('Executing "%s" %s', self.lib, ' '.join(lib_args))
+                self.spawn([self.lib] + lib_args)
+            except DistutilsExecError as 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):
+            ldflags = self._ldflags[target_desc, debug]
+
+            export_opts = ["/EXPORT:" + sym for sym in (export_symbols or [])]
+
+            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)
+
+            if extra_preargs:
+                ld_args[:0] = extra_preargs
+            if extra_postargs:
+                ld_args.extend(extra_postargs)
+
+            output_dir = os.path.dirname(os.path.abspath(output_filename))
+            self.mkpath(output_dir)
+            try:
+                log.debug('Executing "%s" %s', self.linker, ' '.join(ld_args))
+                self.spawn([self.linker] + ld_args)
+                self._copy_vcruntime(output_dir)
+            except DistutilsExecError as msg:
+                raise LinkError(msg)
+        else:
+            log.debug("skipping %s (up-to-date)", output_filename)
+
+    def _copy_vcruntime(self, output_dir):
+        vcruntime = self._vcruntime_redist
+        if not vcruntime or not os.path.isfile(vcruntime):
+            return
+
+        if os.path.basename(vcruntime).lower() in _BUNDLED_DLLS:
+            return
+
+        log.debug('Copying "%s"', vcruntime)
+        vcruntime = shutil.copy(vcruntime, output_dir)
+        os.chmod(vcruntime, stat.S_IWRITE)
+
+    def spawn(self, cmd):
+        old_path = os.getenv('path')
+        try:
+            os.environ['path'] = self._paths
+            return super().spawn(cmd)
+        finally:
+            os.environ['path'] = old_path
+
+    # -- 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.isfile(libfile):
+                    return libfile
+        else:
+            # Oops, didn't find it in *any* of 'dirs'
+            return None