[Python-Dev] Re: Timing for Py2.4

[Paul Moore]

Thomas Heller <theller at python.net> writes:

>> Ouch. One other thought I had, based on some comments from Gareth, was
>> that getting distutils to work with the free MS compilers would be
>> good. I'm not sure what would be involved, or if I could help (I'm not
>> familiar with the distutils code, though...)
>
> Do you mean building the wininst.exe template with other compilers?
> Shouldn't be needed, because the binaries are also in CVS.

Nope. I'm talking about the "build_ext" command. I have MSVC6
installed, and the .NET framework MSVC7 compilers. If I have the free
compilers in my PATH (I don't expect distutils to auto-detect the free
compilers from the registry, as it does for MSVC6), and do python24
setup.py build, I get the error:

>C:\Apps\Python24\python.exe setup.py build
running build
running build_py
creating build
creating build\lib.win32-2.4
copying alarm.py -> build\lib.win32-2.4
running build_ext
error: Python was built with version 7.1 of Visual Studio, and
extensions need to be built with the same version of the compiler,
but it isn't installed.

So even though I have the free VC7 compiler, and it's in my PATH, I
still can't build a simple extension with it. Even renaming the MSVC6
registry key, to get it out of the way, didn't help.

Also, distutils adds optimisation flags to the command line, which
don't work with the free compilers. Etc, etc.

I suspect it's possible, but non-trivial, to get it working. I'm not
sure I understand distutils well enough to risk attempting to get it
right :-(

Paul.
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