Respectfully, it seems to me that you've been too quick to dismiss my
concerns. As I pointed out in my previous email:
(1) [These versioned references] will likely lead to conflicts within
profiles. For example, a profile that includes both 'gtkmm' and
'cairomm' may fail to build, because it would require including both
'cairomm' and 'cairomm-1.13',
This could be a real annoyance. Guix users should be able to run "guix
install gtkmm atkmm cairomm pangomm" and have that work. With these
proposed patches applied, I suspect that it might not work.
Traditional GNU/Linux distributions that package GNOME 40 will certainly
choose versions of 'gtkmm', 'atkmm', 'cairomm', and 'pangomm' that are
compatible with each other. We should too, I think.
From my own experience performing a GNOME upgrade for Guix a few years
ago, I remember that when the GNOME developers produce a new GNOME
release, they provide somewhere a list of the versions of each component
that are part of that release. Presumably they choose those versions to
be compatible with each other.
This makes me wonder if some of the GNOME components on the 'wip-gnome'
branch are newer than they should be (perhaps a development version) or
older than they should be.
What do you think?