1. Armin Rigo
  2. cpython-withatomic


Martin von Löwis  committed c547645

Introduce DISTUTILS_USE_SDK as a flag to determine whether the
SDK environment should be used. Fixes #1508010.

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  • Branches legacy-trunk

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Files changed (3)

File Doc/dist/dist.tex

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 \modulesynopsis{Microsoft Compiler}
 This module provides \class{MSVCCompiler}, an implementation of the abstract 
-\class{CCompiler} class for Microsoft Visual Studio. It should also work using
-the freely available compiler provided as part of the .Net SDK download. XXX
-download link.
+\class{CCompiler} class for Microsoft Visual Studio. Typically, extension
+modules need to be compiled with the same compiler that was used to compile
+Python. For Python 2.3 and earlier, the compiler was Visual Studio 6. For
+Python 2.4 and 2.5, the compiler is Visual Studio .NET 2003. The AMD64
+and Itanium binaries are created using the Platform SDK.
+\class{MSVCCompiler} will normally choose the right compiler, linker etc.
+on its own. To override this choice, the environment variables
+\var{DISTUTILS\_USE\_SDK} and \var{MSSdk} must be both set. \var{MSSdk}
+indicates that the current environment has been setup by the SDK's
+\code{SetEnv.Cmd} script, or that the environment variables had been
+registered when the SDK was installed; \var{DISTUTILS\_USE\_SDK} indicates
+that the distutils user has made an explicit choice to override the
+compiler selection by \class{MSVCCompiler}.
 \section{\module{distutils.bcppcompiler} --- Borland Compiler}

File Lib/distutils/msvccompiler.py

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     def initialize(self):
         self.__paths = []
-        if os.environ.has_key("MSSdk") and self.find_exe("cl.exe"):
+        if os.environ.has_key("DISTUTILS_USE_SDK") and os.environ.has_key("MSSdk") and self.find_exe("cl.exe"):
             # Assume that the SDK set up everything alright; don't try to be
             # smarter
             self.cc = "cl.exe"

File Misc/NEWS

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+- Bug #1508010: msvccompiler now requires the DISTUTILS_USE_SDK 
+  environment variable to be set in order to the SDK environment
+  for finding the compiler, include files, etc.
 - Bug #1515998: Properly generate logical ids for files in bdist_msi.
 - warnings.py now ignores ImportWarning by default