unixODBC-2.2.6 has a couple problems, both of which concern the add-on
gODBCConfig. gODBCConfig's configure script seems to respect --without-gnome,
but will not compile without gnome-libs installed. Therefore, the dependency on
gtk needs to be changed to gnome. I updated the IUSE and added a dependency for
gnome-libs (use gtk had no dependency in DEPEND!) Lastly, I removed the myconf
used on the configure line for gODBCConfig, because the configure options are
totally different and irrelevant.
All these things have been fixed and tested in the attached ebuild.
I do not think a version bump is necessary, although I named the package as
such only to distinguish it.