help cross compiling gpephone, dependencies

hi,

I want to cross compile gpephone for ARM.

I already have the cross compilation env set up. But I want to know
what other packages
has to be cross compiled before going for gpephone stuff(like gtk+, dbus etc..).

could some one please provide me with clues on where to find the
information for this ?

-- 
Thanks & Regards
              Anish N