Description of problem:
If you set %define gtk2 1 in the spec file for openssh, the requires statement 
still requires gnome-libs (which is a gtk1 ask-pass). Checked upto 3.5p1-7

Better might be a construction as:
%if !%no_gnome_ask_pass
%if gtk2
Requires: libgnome, gtk2, ...etc
%else
Requires: gnome-libs
%endif
%endif

Would that work? (Knowing rpm's buggy nested if statements) Else it might be 
an idea to make gnome2_ask_pass and gnome1_ask_pass settings? 

Ran into this while trying to banish gnome1 and kde from my system..