bundled MinGW has missing support for openmp

[canesin]

Hi! When trying to compile some cython code using anaconda 2.0.1 (and 2.1.0) in win64 I noticed that openmp is missing, looking in cython-group in google groups it seems to be the default solution to just replace anaconda MinGW with TDM-GCC (http://tdm-gcc.tdragon.net/)... and that simply works. But the cython recommendation is to use MS SDK (https://github.com/cython/cython/wiki/64BitCythonExtensionsOnWindows)

All that said, there is also (https://github.com/numpy/numpy/wiki/Mingw-static-toolchain) ..
So three options here:

1. Use TDM-GCC
2. Use Microsoft Compiler
3. Use numpy/scipy static toolset

My vote is for (1) as I have been using it for the past year in production.

[ARF1]

I would like to second this. The included compiler should support openmp since it is often necessary for scientific libraries.

[ccordoba12]

MinGW in Windows 64 is still unstable, see for example issue #271. So i think the official solution suggested by the Cython developers is the best alternative right now, i.e. using the Visual Studio compiler.

However, TDM-GCC is an alternative worth exploring. I didn't know about it, so thanks for suggesting it.

[ARF1]

I have switched to TDM-GCC on win32 and am very happy. Just make sure it is in the path before anaconda/Scripts.