> > So to summarize what's above : > 1) I can help with a win32 port, but by cross-compiling, as I know it's > efficient ; > 2) in fact, helping with a win32 port would be a natural follow-up to my > current work on the ARM port ; > 3) but that won't be an easy ride (especially if I'm all alone as for > the ARM port). > > Snark on #sage-devel
Thank you for the offer! AFAICT, a major obstacle for cross compiling Sage on a Linux host for a Windows target is Python. On the one hand, I believe Python uses Python in its build process (possibly some intermediate stage built just before, but nevertheless), so any cross-compilation environment must have not only a C compiler, but also a Python interpreter. To set up such an environment is not trivial (but has been done before, of course). On the other hand, the Python language features "exceptions", and to my knowledge this presents problems under MinGW (due to the C library/runtime to be used), which are so big, that currently neither official nor even unofficial Python distributions for MinGW (or MinGW- w64) are actively maintained. Of the Windows users in the Python community, everybody uses a Python that is "natively compiled", but at least it seems that compiling a 64- bit version under a 32-bit Windows is possible and vice versa (a kind of cross-compilation ...), using one and the same MS Visual Studio (C/C ++ compiler) version. But jumping on that train would mean that each and every C/C++ library used in Sage (including all of the Python extension modules, like those produced via Cython) needs to be compiled with a compiler producing something 100% compatible with that Python *binary*. I don't know whether this exists (or is even possible) on a Linux host, cross-compiling appropriate Windows DLLs (where e.g. exceptions can be thrown "over" DLL boundaries). Cheers, Georg -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
