vala generates bad gir files (eg. without absolute paths)

[hedning]

Issue description

Most gir files are generated by g-ir-scanner from gobject-introspection, which we patch to generate absolute paths to the dependencies the gir specifies.

vala generates gir files without the help of gobject-introspection, so our patches that make things work properly have no effect.

An example is gnome3.folks being unusable from python out of the box: #47059. The same problem can be seen with granite (another vala library).

Steps to reproduce

nix-shell -p pantheon.granite gobject-introspection 'python3.withPackages (p: [p.pygobject3 ])' --command 'python -c "from gi.repository import Granite"'

[nixos-discourse]

This issue has been mentioned on NixOS Discourse. There might be relevant details there:

https://discourse.nixos.org/t/modulenotfounderror-no-module-named-gi/6874/9

[stale[bot]]

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