pinentry: excessive derivation closure size

[roberth]

Describe the bug

Pinentry is causing more rebuilds than necessary because it depends on many desktop environments for apparently no good reason.

The unnecessary dependencies also make the package more fragile, as observed in #124753

Steps To Reproduce

Steps to reproduce the behavior:

1. change qt
2. build the pinentry-gnome
3. observe a rebuild

This applies to all combinations of variants.

Expected behavior

Distinct derivations for each variant cause no unnecessary derivation dependencies and therefore no unnecessary rebuilds.

The problem in #124753 is fixed.

Screenshots

Additional context

This is not about the (byte) size of an output closure, but rather about rebuilding too often and depending on too many other packages.

The problem was introduced with cb0adc1

Notify maintainers

@ttuegel @fpletz

Metadata

Maintainer information:

# a list of nixpkgs attributes affected by the problem
attribute:
 - pinentry
 - pinentry-curses
 - pinentry-emacs
 - pinentry-gtk2
 - pinentry-qt
 - pinentry-gnome
# a list of nixos modules affected by the problem
module:

[stale]

I marked this as stale due to inactivity. → More info

[SuperSandro2000]

This should be fixed by #277221