lirc: split outputs, and patch several FHS issues

[doronbehar]

Things done

• Built on platform:
  • x86_64-linux
    • Direct dependency pulseaudioFull
    • Direct dependency rhythmbox
  • aarch64-linux
• Ran nixpkgs-review on this PR. See nixpkgs-review usage.
• Tested basic functionality of all binary files, usually in ./result/bin/.
• Fits CONTRIBUTING.md, pkgs/README.md, maintainers/README.md and other READMEs.

[SuperSandro2000]

not sure about the patch shebangs but if you think it is correct, fine for me

[doronbehar]

Thanks for the approval, I mainly asked for your review regarding the split outputs. $out contains many references to $out/bin, which makes splitting a bin output hard. I tried today a bit harder to split it never the less, and I gave up. I did however found out a few other small fixes that are still substantial which I'd like to get your review upon.

As for the patchShebangs topic - I'll leave that to another PR.

[doronbehar]

It was a bit hard, but I managed to split the $lib output - which will make most of the packages in Nixpkgs that depend on lirc only reference lirc.lib - greatly reducing the closure size of it.

[SuperSandro2000]

Suggested change

	rm $out/bin/lirc-setup
	ln -s $out/${python3.sitePackages}/lirc-setup/lirc-setup $out/bin/lirc-setup
	ln -fs $out/${python3.sitePackages}/lirc-setup/lirc-setup $out/bin/lirc-setup

[doronbehar]

Thanks for the suggestion @SuperSandro2000 , but I was sort of thinking about doing that, and I decided that an explicit rm (and not rm -f) is better because this way it'll be easy to detect that the file is not present - in case in the future upstream will stop distributing it. What do you think?

[doronbehar]

Friendly ping @SuperSandro2000 🏓 .