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- # Building Python 3.5 (32-bit) modules with Anaconda and MINGW64 (without MSVC 2015)
- To create 32-bit anaconda environment on 64-bit install:
- ```
- set CONDA_FORCE_32BIT=1
- conda create -n py35_32 python=3.5
- ```
- To install mingw64, don't use mingw package (deprecated). Intsead:
- ```
- conda install m2w64-toolchain
- ```
- Modify env\py35_32\Lib\distutils\cygwincompiler.py with rule for MSVC 1900:
- ```
- elif msc_ver == '1600':
- # VS2010 / MSVC 10.0
- return ['msvcr100']
- elif msc_ver == '1900':
- return ['vcruntime140']
- else:
- raise ValueError("Unknown MS Compiler version %s " % msc_ver)
- ```
- To compile, need to tell it to use mingw32 compiler and add folder with vcruntime140.dll to library search path.
- ```
- python setup.py build_ext --compiler=mingw32 -LC:\Miniconda3-x64\envs\py35_32 -i
- ```
- Confirm the resulting file is 32 bit (should be obvious from filename!):
- ```
- D:\pycatchmod>file pycatchmod\_catchmod.cp35-win32.pyd
- pycatchmod\_catchmod.cp35-win32.pyd: PE32 executable (DLL) (console) Intel 80386 (stripped to external PDB), for MS Windows
- ```
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