libgcc_ng and libstdcxx_ng listed as requirements

[jakirkham]

When running conda press on the numcodecs packages recently using --fatten --skip-python, it appears that libgcc_ng and libstdcxx_ng were listed as requirements and their libraries not added. As a result pip fails to install as these libraries are missing. Additionally the wheels don't have these standard compiler libraries they are linked against.

[scopatz]

Thanks for reporting! can you please provide the full command you ran?

[jakirkham]

Sure, I ran conda press --skip-python --fatten on all of the tarballs for the numcodecs version 0.6.4 release.

Used this script to download them and run conda press on each one.

Should add I'm new to conda-press. So could be doing foolish things. Guidance is also appreciated. 🙂

[jakirkham]

What happens when you run conda press on a tarball? Is the code path different than for other things (like the package spec)?

[scopatz]

What happens when you run conda press on a tarball? Is the code path different than for other things (like the package spec)?

Basically the only difference is that when running on a tarball it doesn't do a solve, and so doesn't build the wheels for the deps as well. It only builds the wheel for that tarball. Very open to suggestions for changes here!

[jakirkham]

Yeah it would be nice if it still solved with tarballs. My goal was to generate a wheel from a specific Conda package. So using a tarball helped facilitate that.

[scopatz]

Ok great!