Inkscape isn't currently working in Rawhide, it's missing a symbol, seemingly
from glibmm. Most likely, it just needs a rebuild. I'm looking into it more
deeply, but my guess is that even though gtkmm libraries are supposed to be ABI
compatible in-between release, it's possible that C++ makes this difficult and
will force a rebuild everytime. If that's the case, inkscape spec file will need
a stricter dependency on the glibmm/gtkmmm version...