mate-panel build doesn't include gobject-introspection files

[duairc]

Issue description

The derivation of mate-panel in nixos-unstable does not include gobject-introspection files. This causes applets that use gobject-introspection to get bindings to the underlying mate-panel library to fail.

Steps to reproduce

Build mate-panel in nixos-unstable and look at the result/. It should include the following files but doesn't.

• ./lib/girepository-1.0/MatePanelApplet-4.0.typelib
• ./share/gir-1.0/MatePanelApplet-4.0.gir

Solution

The fix is simple: add gobject-introspection to the buildInputs. But I'm a bit hazy as to whether it should go in buildInputs or nativeBuildInputs... I don't know much about how gobjecty applications work, but I'm guessing those files are generated during the build process, right? That would mean it should be in nativeBuildInputs?

Technical details

• system: "x86_64-linux"
• host os: Linux 4.19.13, NixOS, 19.03.git.acd2756 (Koi)
• multi-user?: yes
• sandbox: yes
• version: nix-env (Nix) 2.1.3
• channels(shane): ""
• channels(root): "home-manager, nixos-19.03pre165037.eebd1a92637"
• nixpkgs: /pkgs/nixpkgs

[hedning]

Yep, you're correct it should go in nativeBuildInputs.

[worldofpeace]

I see

    ├── gir-1.0
    │   └── MatePanelApplet-4.0.gir

in the package's output now.