INSTALLS_ICONS being gnome/gtk-oriented, pulling unneeded(?) deps for Qt-ports

[Alexey Dokuchaev]

Hi there,

Currently, portlint(1) suggests to add INSTALLS_ICONS knob if it sees
share/icons/hicolor/* files in pkg-plist, which in turn means USE_GNOME+=
gtk-update-icon-cache and thus pulls things which are from Gtk+ world,
and thus seem not quite natural for e.g. Qt-based (or even completely
unattached) ports.

I'd like to ask Freedesktop-aware people, if Freedesktop-style icons
can be handled in FreeBSD in some Gtk+-agnostic way; and how feasible
would it be to implement such framework in place of the current one?

./danfe