The "guile" and "guile-repl" commands are disabled in the Fedora gdb, but they still show up in the CLI. This messes up completion for me sometimes, as I have a "gui" command I use. I think that since these commands can't work in Fedora gdb, they should not appear in the CLI at all. I hacked around this using maint deprecate guile maint deprecate guile-repl ... but unfortunately these don't work: maint deprecate set guile maint deprecate show guile (Which is maybe another bug of its own)
While it is a valid Bug maybe could you just post it upstream? Rawhide (F-22+) has Guile already enabled so this is an F-21 only Bug. OTOH I may have to disable the Guile in Fedora again (Bug 1208760).
(In reply to Jan Kratochvil from comment #1) > Rawhide (F-22+) has Guile already enabled so this is an F-21 only Bug. Oh, that's too bad. I suppose you might as well just ignore this then.