Using the zef package manager on NixOS

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I’m trying to use perl6 on my nixos system, and so far I’ve successfully installed raku and zef. Here is the (slightly convoluted) process I followed:

I’m able to run the raku repl just fine, but I’m having a bit of trouble installing things with zef. Running nix-shell -p readline --run "zef install Readline" fails with a bunch of Cannot locate native library '(null)': libreadline.so.7: cannot open shared object file: No such file or directory errors. How do I get zef to work properly with Nix?

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ping @volth in case they have some wisdom to share.

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@volth any suggestions?

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I have no experience with Perl6
I switched to http://web.archive.org/web/20130328213915/http://Perl8.org/ even before Perl6 was stabilized.

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@Bleu-Box Hi!

For native libraries raku needs to find them in the LD_LIBRARY_PATH.

I’m working on setting up a rakuPackage function for Nix that handles native libraries (by propagating LD_LIBRARY_PATH trough a setup-hook). Have a look at the rakuPackage branch of GitHub - stigtsp/nur if you’re interested which contains derivations for a few modules depending on native libraries (like OpenSSL). It’s still work in progress, I hope to work a bit more on it this month.

A lot of the work has been based on GitHub - chloekek/crai: Cryogenic Raku Archive Index and GitHub - chloekek/raku-nix: Build Raku modules with Nix! Also includes Nix derivations for community modules from CPAN and GitHub. , so these repos might be worth checking out.

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@Bleu-Box note that rakudo-2020.01 is now available in nixpkgs-unstable

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Is there any news with regard to rakuPackages?