On Mon, Oct 27, 2014 at 10:48 AM, Paul Moore <p.f.mo...@gmail.com> wrote: > The bad news is that the support added to the old 32-bit mingw to > support linking to alternative C runtime libraries (specifically > -lmsvcr100) has bitrotted, and no longer functions correctly in > mingw-w64. As a result, not only can mingw-w64 not build extensions > that are compatible with python.org Python, it can't build extensions > that function at all [1]. They link incompatibly to *both* msvcrt and > msvcr100. > > This is a bug in mingw-w64. I have reported it to Ray, who's passed it > onto one of the mingw-w64 developers. But as things stand, mingw > builds will definitely produce binary extensions that aren't > compatible with python.org Python. > > Paul > > [1] Note, that's if you just use --compiler=mingw32 as supported by > distutils. Looking at how the numpy folks build, they seem to hack > their own version of the distutils C compiler classes. I don't know > whether that's just to work around this bug, or whether they do it for > other reasons as well (but I suspect the latter). > _______________________________________________ > Python-Dev mailing list > Python-Dev@python.org > https://mail.python.org/mailman/listinfo/python-dev > Unsubscribe: > https://mail.python.org/mailman/options/python-dev/casevh%40gmail.com
I've managed to build gmpy2 (which requires GMP, MPFR, and MPC libraries) using msys2. I've detailed the steps (hacking) at: https://code.google.com/p/gmpy/source/browse/trunk/msys2_build.txt One of the hacks I made addresses the linking bug. The extension does run with the both the 32-bit and 64-bit versions of CPython 2.7, 3.2, 3.3, and 3.4. It is possible, just not easy. Anything that makes is easier would be very helpful. casevh _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
