Hi all, I'm making good progress on using bdist_msi to package up x64 versions of the pywin32 extensions. On the way I've struck a number of issues. In an effort to try and keey the discussions focussed, I'll create new threads for each of them, and the first cab off the rank is cross-compilation.
IIUC, the only way to build Python or Python extensions using VS2003 is to cross-compile from a 32bit platform. Although this requirement is only short term, in the longer term we should support cross-compilation to prevent a Windows developer needing access to all architectures just to create a build. Here are the problems I had: * The dev box needs access to both a 32bit and a 64bit version of Python - the 32bit one to execute Python itself, and the 64bit one to link against. * PYTHONHOME had to be set to the x64 version of Python when running the build, otherwise the link would fail as it tries to use the 32bit python.lib * '/MACHINE:AMD64' or '/MACHINE:Itanium' manually needs to be added to the link commandline. * '/D_M_X64' had to be passed to the compiler (which seems unusual, but I didn't dig too deep into this) One way to approach this might be to add a "global" option to distutils. It might be possible to call it --python_bin_dir, which would point at the libraries for the target system (and we could attempt to sniff the architecture from them). It would need to be a 'global' option as many commands may need to know the target (eg, bdist_msi would also need to know) and distutils.util.get_platform() would need to change to reflect the target platform, not the platform being used to perform the build. msvccompiler.get_build_architecture() could also change to take advantage of this and grow support for /MACHINE etc. Does anyone have any thoughts on this? I'm happy to come up with a patch, but I'm looking for direction (or even just encouragement <wink>) Thanks, Mark _______________________________________________ Distutils-SIG maillist - Distutils-SIG@python.org http://mail.python.org/mailman/listinfo/distutils-sig
