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693 lines
23 KiB
693 lines
23 KiB
"""distutils.msvccompiler
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Contains MSVCCompiler, an implementation of the abstract CCompiler class
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for the Microsoft Visual Studio.
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"""
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# Written by Perry Stoll
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# hacked by Robin Becker and Thomas Heller to do a better job of
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# finding DevStudio (through the registry)
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import sys
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import os
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import warnings
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from .errors import (
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DistutilsExecError,
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DistutilsPlatformError,
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CompileError,
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LibError,
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LinkError,
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)
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from .ccompiler import CCompiler, gen_lib_options
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from ._log import log
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_can_read_reg = False
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try:
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import winreg
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_can_read_reg = True
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hkey_mod = winreg
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RegOpenKeyEx = winreg.OpenKeyEx
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RegEnumKey = winreg.EnumKey
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RegEnumValue = winreg.EnumValue
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RegError = winreg.error
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except ImportError:
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try:
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import win32api
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import win32con
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_can_read_reg = True
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hkey_mod = win32con
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RegOpenKeyEx = win32api.RegOpenKeyEx
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RegEnumKey = win32api.RegEnumKey
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RegEnumValue = win32api.RegEnumValue
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RegError = win32api.error
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except ImportError:
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log.info(
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"Warning: Can't read registry to find the "
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"necessary compiler setting\n"
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"Make sure that Python modules winreg, "
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"win32api or win32con are installed."
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)
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pass
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if _can_read_reg:
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HKEYS = (
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hkey_mod.HKEY_USERS,
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hkey_mod.HKEY_CURRENT_USER,
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hkey_mod.HKEY_LOCAL_MACHINE,
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hkey_mod.HKEY_CLASSES_ROOT,
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)
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warnings.warn(
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"msvccompiler is deprecated and slated to be removed "
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"in the future. Please discontinue use or file an issue "
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"with pypa/distutils describing your use case.",
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DeprecationWarning,
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)
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def read_keys(base, key):
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"""Return list of registry keys."""
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try:
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handle = RegOpenKeyEx(base, key)
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except RegError:
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return None
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L = []
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i = 0
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while True:
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try:
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k = RegEnumKey(handle, i)
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except RegError:
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break
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L.append(k)
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i += 1
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return L
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def read_values(base, key):
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"""Return dict of registry keys and values.
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All names are converted to lowercase.
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"""
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try:
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handle = RegOpenKeyEx(base, key)
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except RegError:
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return None
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d = {}
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i = 0
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while True:
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try:
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name, value, type = RegEnumValue(handle, i)
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except RegError:
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break
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name = name.lower()
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d[convert_mbcs(name)] = convert_mbcs(value)
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i += 1
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return d
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def convert_mbcs(s):
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dec = getattr(s, "decode", None)
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if dec is not None:
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try:
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s = dec("mbcs")
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except UnicodeError:
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pass
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return s
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class MacroExpander:
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def __init__(self, version):
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self.macros = {}
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self.load_macros(version)
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def set_macro(self, macro, path, key):
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for base in HKEYS:
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d = read_values(base, path)
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if d:
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self.macros["$(%s)" % macro] = d[key]
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break
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def load_macros(self, version):
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vsbase = r"Software\Microsoft\VisualStudio\%0.1f" % version
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self.set_macro("VCInstallDir", vsbase + r"\Setup\VC", "productdir")
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self.set_macro("VSInstallDir", vsbase + r"\Setup\VS", "productdir")
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net = r"Software\Microsoft\.NETFramework"
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self.set_macro("FrameworkDir", net, "installroot")
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try:
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if version > 7.0:
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self.set_macro("FrameworkSDKDir", net, "sdkinstallrootv1.1")
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else:
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self.set_macro("FrameworkSDKDir", net, "sdkinstallroot")
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except KeyError:
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raise DistutilsPlatformError(
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"""Python was built with Visual Studio 2003;
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extensions must be built with a compiler than can generate compatible binaries.
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Visual Studio 2003 was not found on this system. If you have Cygwin installed,
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you can try compiling with MingW32, by passing "-c mingw32" to setup.py."""
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)
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p = r"Software\Microsoft\NET Framework Setup\Product"
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for base in HKEYS:
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try:
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h = RegOpenKeyEx(base, p)
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except RegError:
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continue
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key = RegEnumKey(h, 0)
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d = read_values(base, r"{}\{}".format(p, key))
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self.macros["$(FrameworkVersion)"] = d["version"]
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def sub(self, s):
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for k, v in self.macros.items():
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s = s.replace(k, v)
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return s
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def get_build_version():
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"""Return the version of MSVC that was used to build Python.
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For Python 2.3 and up, the version number is included in
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sys.version. For earlier versions, assume the compiler is MSVC 6.
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"""
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prefix = "MSC v."
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i = sys.version.find(prefix)
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if i == -1:
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return 6
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i = i + len(prefix)
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s, rest = sys.version[i:].split(" ", 1)
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majorVersion = int(s[:-2]) - 6
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if majorVersion >= 13:
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# v13 was skipped and should be v14
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majorVersion += 1
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minorVersion = int(s[2:3]) / 10.0
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# I don't think paths are affected by minor version in version 6
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if majorVersion == 6:
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minorVersion = 0
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if majorVersion >= 6:
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return majorVersion + minorVersion
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# else we don't know what version of the compiler this is
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return None
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def get_build_architecture():
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"""Return the processor architecture.
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Possible results are "Intel" or "AMD64".
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"""
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prefix = " bit ("
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i = sys.version.find(prefix)
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if i == -1:
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return "Intel"
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j = sys.version.find(")", i)
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return sys.version[i + len(prefix) : j]
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def normalize_and_reduce_paths(paths):
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"""Return a list of normalized paths with duplicates removed.
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The current order of paths is maintained.
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"""
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# Paths are normalized so things like: /a and /a/ aren't both preserved.
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reduced_paths = []
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for p in paths:
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np = os.path.normpath(p)
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# XXX(nnorwitz): O(n**2), if reduced_paths gets long perhaps use a set.
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if np not in reduced_paths:
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reduced_paths.append(np)
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return reduced_paths
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class MSVCCompiler(CCompiler):
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"""Concrete class that implements an interface to Microsoft Visual C++,
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as defined by the CCompiler abstract class."""
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compiler_type = 'msvc'
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# Just set this so CCompiler's constructor doesn't barf. We currently
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# don't use the 'set_executables()' bureaucracy provided by CCompiler,
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# as it really isn't necessary for this sort of single-compiler class.
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# Would be nice to have a consistent interface with UnixCCompiler,
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# though, so it's worth thinking about.
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executables = {}
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# Private class data (need to distinguish C from C++ source for compiler)
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_c_extensions = ['.c']
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_cpp_extensions = ['.cc', '.cpp', '.cxx']
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_rc_extensions = ['.rc']
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_mc_extensions = ['.mc']
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# Needed for the filename generation methods provided by the
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# base class, CCompiler.
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src_extensions = _c_extensions + _cpp_extensions + _rc_extensions + _mc_extensions
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res_extension = '.res'
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obj_extension = '.obj'
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static_lib_extension = '.lib'
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shared_lib_extension = '.dll'
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static_lib_format = shared_lib_format = '%s%s'
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exe_extension = '.exe'
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def __init__(self, verbose=0, dry_run=0, force=0):
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super().__init__(verbose, dry_run, force)
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self.__version = get_build_version()
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self.__arch = get_build_architecture()
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if self.__arch == "Intel":
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# x86
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if self.__version >= 7:
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self.__root = r"Software\Microsoft\VisualStudio"
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self.__macros = MacroExpander(self.__version)
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else:
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self.__root = r"Software\Microsoft\Devstudio"
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self.__product = "Visual Studio version %s" % self.__version
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else:
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# Win64. Assume this was built with the platform SDK
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self.__product = "Microsoft SDK compiler %s" % (self.__version + 6)
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self.initialized = False
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def initialize(self):
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self.__paths = []
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if (
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"DISTUTILS_USE_SDK" in os.environ
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and "MSSdk" in os.environ
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and self.find_exe("cl.exe")
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):
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# Assume that the SDK set up everything alright; don't try to be
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# smarter
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self.cc = "cl.exe"
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self.linker = "link.exe"
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self.lib = "lib.exe"
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self.rc = "rc.exe"
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self.mc = "mc.exe"
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else:
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self.__paths = self.get_msvc_paths("path")
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if len(self.__paths) == 0:
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raise DistutilsPlatformError(
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"Python was built with %s, "
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"and extensions need to be built with the same "
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"version of the compiler, but it isn't installed." % self.__product
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)
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self.cc = self.find_exe("cl.exe")
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self.linker = self.find_exe("link.exe")
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self.lib = self.find_exe("lib.exe")
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self.rc = self.find_exe("rc.exe") # resource compiler
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self.mc = self.find_exe("mc.exe") # message compiler
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self.set_path_env_var('lib')
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self.set_path_env_var('include')
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# extend the MSVC path with the current path
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try:
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for p in os.environ['path'].split(';'):
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self.__paths.append(p)
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except KeyError:
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pass
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self.__paths = normalize_and_reduce_paths(self.__paths)
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os.environ['path'] = ";".join(self.__paths)
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self.preprocess_options = None
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if self.__arch == "Intel":
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self.compile_options = ['/nologo', '/O2', '/MD', '/W3', '/GX', '/DNDEBUG']
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self.compile_options_debug = [
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'/nologo',
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'/Od',
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'/MDd',
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'/W3',
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'/GX',
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'/Z7',
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'/D_DEBUG',
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]
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else:
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# Win64
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self.compile_options = ['/nologo', '/O2', '/MD', '/W3', '/GS-', '/DNDEBUG']
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self.compile_options_debug = [
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'/nologo',
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'/Od',
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'/MDd',
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'/W3',
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'/GS-',
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'/Z7',
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'/D_DEBUG',
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]
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self.ldflags_shared = ['/DLL', '/nologo', '/INCREMENTAL:NO']
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if self.__version >= 7:
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self.ldflags_shared_debug = ['/DLL', '/nologo', '/INCREMENTAL:no', '/DEBUG']
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else:
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self.ldflags_shared_debug = [
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'/DLL',
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'/nologo',
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'/INCREMENTAL:no',
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'/pdb:None',
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'/DEBUG',
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]
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self.ldflags_static = ['/nologo']
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self.initialized = True
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# -- Worker methods ------------------------------------------------
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def object_filenames(self, source_filenames, strip_dir=0, output_dir=''):
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# Copied from ccompiler.py, extended to return .res as 'object'-file
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# for .rc input file
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if output_dir is None:
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output_dir = ''
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obj_names = []
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for src_name in source_filenames:
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(base, ext) = os.path.splitext(src_name)
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base = os.path.splitdrive(base)[1] # Chop off the drive
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base = base[os.path.isabs(base) :] # If abs, chop off leading /
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if ext not in self.src_extensions:
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# Better to raise an exception instead of silently continuing
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# and later complain about sources and targets having
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# different lengths
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raise CompileError("Don't know how to compile %s" % src_name)
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if strip_dir:
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base = os.path.basename(base)
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if ext in self._rc_extensions:
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obj_names.append(os.path.join(output_dir, base + self.res_extension))
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elif ext in self._mc_extensions:
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obj_names.append(os.path.join(output_dir, base + self.res_extension))
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else:
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obj_names.append(os.path.join(output_dir, base + self.obj_extension))
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return obj_names
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def compile( # noqa: C901
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self,
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sources,
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output_dir=None,
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macros=None,
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include_dirs=None,
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debug=0,
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extra_preargs=None,
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extra_postargs=None,
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depends=None,
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):
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if not self.initialized:
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self.initialize()
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compile_info = self._setup_compile(
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output_dir, macros, include_dirs, sources, depends, extra_postargs
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)
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macros, objects, extra_postargs, pp_opts, build = compile_info
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compile_opts = extra_preargs or []
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compile_opts.append('/c')
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if debug:
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compile_opts.extend(self.compile_options_debug)
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else:
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compile_opts.extend(self.compile_options)
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for obj in objects:
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try:
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src, ext = build[obj]
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except KeyError:
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continue
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if debug:
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# pass the full pathname to MSVC in debug mode,
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# this allows the debugger to find the source file
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# without asking the user to browse for it
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src = os.path.abspath(src)
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if ext in self._c_extensions:
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input_opt = "/Tc" + src
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elif ext in self._cpp_extensions:
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input_opt = "/Tp" + src
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elif ext in self._rc_extensions:
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# compile .RC to .RES file
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input_opt = src
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output_opt = "/fo" + obj
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try:
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self.spawn([self.rc] + pp_opts + [output_opt] + [input_opt])
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except DistutilsExecError as msg:
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raise CompileError(msg)
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continue
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elif ext in self._mc_extensions:
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# Compile .MC to .RC file to .RES file.
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# * '-h dir' specifies the directory for the
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# generated include file
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# * '-r dir' specifies the target directory of the
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# generated RC file and the binary message resource
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# it includes
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#
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# For now (since there are no options to change this),
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# we use the source-directory for the include file and
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# the build directory for the RC file and message
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# resources. This works at least for win32all.
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h_dir = os.path.dirname(src)
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rc_dir = os.path.dirname(obj)
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try:
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# first compile .MC to .RC and .H file
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self.spawn([self.mc] + ['-h', h_dir, '-r', rc_dir] + [src])
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base, _ = os.path.splitext(os.path.basename(src))
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rc_file = os.path.join(rc_dir, base + '.rc')
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# then compile .RC to .RES file
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self.spawn([self.rc] + ["/fo" + obj] + [rc_file])
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except DistutilsExecError as msg:
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raise CompileError(msg)
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|
continue
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else:
|
|
# how to handle this file?
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|
raise CompileError(
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"Don't know how to compile {} to {}".format(src, obj)
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)
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output_opt = "/Fo" + obj
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try:
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self.spawn(
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[self.cc]
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+ compile_opts
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+ pp_opts
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+ [input_opt, output_opt]
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+ extra_postargs
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)
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except DistutilsExecError as msg:
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raise CompileError(msg)
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|
return objects
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|
|
|
def create_static_lib(
|
|
self, objects, output_libname, output_dir=None, debug=0, target_lang=None
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|
):
|
|
if not self.initialized:
|
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self.initialize()
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|
(objects, output_dir) = self._fix_object_args(objects, output_dir)
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|
output_filename = self.library_filename(output_libname, output_dir=output_dir)
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|
|
if self._need_link(objects, output_filename):
|
|
lib_args = objects + ['/OUT:' + output_filename]
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|
if debug:
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|
pass # XXX what goes here?
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|
try:
|
|
self.spawn([self.lib] + lib_args)
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|
except DistutilsExecError as msg:
|
|
raise LibError(msg)
|
|
else:
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|
log.debug("skipping %s (up-to-date)", output_filename)
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|
|
def link( # noqa: C901
|
|
self,
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target_desc,
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objects,
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output_filename,
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|
output_dir=None,
|
|
libraries=None,
|
|
library_dirs=None,
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|
runtime_library_dirs=None,
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|
export_symbols=None,
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|
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)
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|
fixed_args = self._fix_lib_args(libraries, library_dirs, runtime_library_dirs)
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|
(libraries, library_dirs, runtime_library_dirs) = fixed_args
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|
|
|
if runtime_library_dirs:
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|
self.warn(
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|
"I don't know what to do with 'runtime_library_dirs': "
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|
+ str(runtime_library_dirs)
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)
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|
|
lib_opts = gen_lib_options(self, library_dirs, runtime_library_dirs, libraries)
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|
if output_dir is not None:
|
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output_filename = os.path.join(output_dir, output_filename)
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|
|
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.
|
|
if export_symbols is not None:
|
|
(dll_name, dll_ext) = os.path.splitext(
|
|
os.path.basename(output_filename)
|
|
)
|
|
implib_file = os.path.join(
|
|
os.path.dirname(objects[0]), 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)
|
|
|
|
self.mkpath(os.path.dirname(output_filename))
|
|
try:
|
|
self.spawn([self.linker] + ld_args)
|
|
except DistutilsExecError as msg:
|
|
raise LinkError(msg)
|
|
|
|
else:
|
|
log.debug("skipping %s (up-to-date)", output_filename)
|
|
|
|
# -- 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
|
|
|
|
def get_msvc_paths(self, path, platform='x86'):
|
|
"""Get a list of devstudio directories (include, lib or path).
|
|
|
|
Return a list of strings. The list will be empty if unable to
|
|
access the registry or appropriate registry keys not found.
|
|
"""
|
|
if not _can_read_reg:
|
|
return []
|
|
|
|
path = path + " dirs"
|
|
if self.__version >= 7:
|
|
key = r"{}\{:0.1f}\VC\VC_OBJECTS_PLATFORM_INFO\Win32\Directories".format(
|
|
self.__root,
|
|
self.__version,
|
|
)
|
|
else:
|
|
key = (
|
|
r"%s\6.0\Build System\Components\Platforms"
|
|
r"\Win32 (%s)\Directories" % (self.__root, platform)
|
|
)
|
|
|
|
for base in HKEYS:
|
|
d = read_values(base, key)
|
|
if d:
|
|
if self.__version >= 7:
|
|
return self.__macros.sub(d[path]).split(";")
|
|
else:
|
|
return d[path].split(";")
|
|
# MSVC 6 seems to create the registry entries we need only when
|
|
# the GUI is run.
|
|
if self.__version == 6:
|
|
for base in HKEYS:
|
|
if read_values(base, r"%s\6.0" % self.__root) is not None:
|
|
self.warn(
|
|
"It seems you have Visual Studio 6 installed, "
|
|
"but the expected registry settings are not present.\n"
|
|
"You must at least run the Visual Studio GUI once "
|
|
"so that these entries are created."
|
|
)
|
|
break
|
|
return []
|
|
|
|
def set_path_env_var(self, name):
|
|
"""Set environment variable 'name' to an MSVC path type value.
|
|
|
|
This is equivalent to a SET command prior to execution of spawned
|
|
commands.
|
|
"""
|
|
|
|
if name == "lib":
|
|
p = self.get_msvc_paths("library")
|
|
else:
|
|
p = self.get_msvc_paths(name)
|
|
if p:
|
|
os.environ[name] = ';'.join(p)
|
|
|
|
|
|
if get_build_version() >= 8.0:
|
|
log.debug("Importing new compiler from distutils.msvc9compiler")
|
|
OldMSVCCompiler = MSVCCompiler
|
|
from distutils.msvc9compiler import MSVCCompiler
|
|
|
|
# get_build_architecture not really relevant now we support cross-compile
|
|
from distutils.msvc9compiler import MacroExpander # noqa: F811
|