Dear erald Henriksen:
I can see from the
download.gnome.org site, that they have gtk+-3.5.4,
and
the Fedora koji repository only has gtk+-1.2.10-72 ...
Fedora has packages for gtk+ 1, 2 and 3.
Search koji for gtk3 (the rpm name for the gtk+-3* versions).
I did not know or understand that gtk3 was the version of gtk+ 3...
--
Sincerely yours,
Rob G. Healey