On 27 October 2014 18:47, Case Van Horsen
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
Thanks for this. I don't have the time to read your notes right now, but I will do so.
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.
Did you report the linking bug to the mingw-w64 project? They key thing here is that without gcc -lmsvcrt100 foo.c working (i.e., not resulting in linking with msvcrt), building Python extensions will always need hacks to workaround that bug.
It is possible, just not easy. Anything that makes is easier would be very helpful.
With the bug fixed, the steps should be as trivial as: 1. Using python.org Python, with gcc on your PATH. 2. Install any dependencies (e.g., gmp) where gcc can see them. 3. python setup.py build_ext --compiler=mingw32 bdist_wheel (or whatever setup.py invocation suits you, as long as you set compiler=mingw32). Paul