Building Python 2.5.2 for Itanium

[Christopher]

On Nov 21, 3:50 pm, "Martin v. Löwis" <mar... at v.loewis.de> wrote:
> >   I need to compile that module for that release and platform, but I
> > have been unable to discover which MS compiler version and runtime was
> > used to generate the binaries.  My understanding is that Python 2.5.2
> > in general uses Visual Studio 2003, but MS does not appear to have
> > shipped an Itanium compiler with that version of VS.
>
> That's correct. See PCbuild/readme.txt for (somewhat) detailed
> instructions; in essence, you need to use vsextcomp, if you want to
> use the official build process.
>
> >   I know that there is an Itanium compiler in VS2K5 Team System, and
> > also a pre-release version was shipped with the Windows 2003 SP1
> > Platform SDK.
>
> I don't think that is a pre-release. The SDK had been shipping with
> an Itanium compiler for quite some time, and it is the official compiler
> to build binaries for Win64/IA-64 (to my knowledge, it is the compiler
> that Windows itself was built with).
>
> > However, the compiler in the SDK appears to basically
> > be an earlier version of the VS2K5 compiler.
>
> That might be. The more critical issue is what CRT to link with.
> I had been building the Python Itanium binaries always with the SDK
> compiler (of different SDKs, actually); the SDK then would always
> link with msvcrt.dll. If you use VS2K5, you might end up linking
> with a different CRT, which would be bad.
>
> >   When I run setup.py build, the distutils die b/c it is apparently
> > not the right compiler version.
>
> Correct. distutils is not used for building on Windows.
>
> Wrt. the original issue: I am quite skeptical that you can make ctypes
> work on Win64/IA-64. There is are several reasons why it wasn't build,
> such as it doesn't compile, and, if it would compile, it wouldn't work.
> So prepare to do some porting of libffi. Alternatively, rewrite the code
> that requires ctypes to use a plain extension module, which is probably
> easier to port to Itanium.
>
> Regards,
> Martin

Thank you very much.  I appreciate the information.  I will look into
the libffi porting, but it probably will be more time-efficient to
create a native-code module to hit the functions I need.  I appreciate
your responding.

-={C}=-