Building on windows is hard about cpymad

[carlkl]

You might consider using the mingwstatic builds as gcc compilers toolchains. These mingw-w64 based builds has been assembled and patched to simplify the creation of gcc based python extensions on Windows.

See https://bitbucket.org/carlkl/mingw-w64-for-python/downloads for download and https://bitbucket.org/carlkl/mingw-w64-for-python/downloads/mingwstatic-2014-11-readme.md for some explanations.

The latest winpython builds https://winpython.github.io integrates mingwstatic as default for both 32 and 64 bit.

[coldfix]

@carlkl thanks for your hint. I will look into your repositories and see if it will be useful. :)

[carlkl]

@coldfix, after some manual tweaking of the build process I got:
https://bitbucket.org/carlkl/mingw-w64-for-python/downloads/cpymad-0.10.1-cp27-none-win_amd64.whl
That is cpymad for python2.7 amd64 (64bit).

[coldfix]

Hey @carlkl. If I may ask, are you interested in seeing 64bit binaries of this package on PyPI (have 32bit already) - or did you just stumble across this package by accident and decided to inform me about a convenient build platform?

I didn't really think this package is used by anyone else outside HIT at the moment, but if that turns out to be wrong, I might be more careful when breaking API, etc;)

[carlkl]

This package may be of interest for others in the accelerator community. BTW: I stupmbled upon it due to the HIT IPAC14 paper. The mentioned mingw-w64 builds assure correct MS CRT runtime useage and self contained pyd's without the need to deploy further gcc runtimes. These runtime DLLs are missing in your 32 bit distro.

[coldfix]

Sounds great! I just tried to build cpymad/madx (using CMake and the gcc in the winpython installation on a 64bit system), but I ran into problems while linking MAD-X:

ld.exe: cannot find -lgcc_eh

Before I research how to solve this, maybe you had the same problem and can tell me?

[carlkl]

@coldfix coldfix, just remove -lgcc_eh from the command line given in

build/src/CMakeFiles/madxbin.dir/link.txt

[coldfix]

Closing this for now, distributing WinPython builds seems good enough.