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Cython.Build.cythonize does not respect CC or GCC environment variables

See original GitHub issue

Cython.Build.cythonize does not respect the CC and / or GCC environment variables and defaults to the gcc binary. This is especially problematic with conda-build >= 3.0, where the {{ compiler('c') }} requirement installs compilers of the form x86_64-conda_cos6-linux-gnu-cc instead of cc, etc.

I created an example Cython package that fails to build using standard conda-build but passes if I create symlinks from gcc to ${GCC}.

Issue Analytics

State:
Created 5 years ago
Comments:6 (3 by maintainers)

Top GitHub Comments

2reactions

ostrokachcommented, Aug 7, 2018

Thank you for your help, and sorry for the noise.

This issue is not related to Cython.

For the benefit of others, for whatever reason, this issue only appears when the conda-forge channel is ahead of the defaults channel in the ~/.condarc file…

1reaction

scodercommented, Aug 7, 2018

Again, Cython is not calling the C compiler. It’s done by distutils, which makes use of $CC.

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