as suggested by the documentation , the glade catalogs should
be installed in `pkg-config --variable=catalogdir gladeui-1.0`.
This will hardcode a directory in the build system, preventing a
clean VPATH build and related stuff, such as the installation of
a package in the $HOME of a user without enough privilege to
access the catalog directory.
Actually I'm using a dirty hack at configure time that substitutes
the datarootdir of gladeui with the datarootdir of my package,
something like this: