How to regenerate gdk-pixbuf.loaders?

[Andreas Matthias <amat kabsi at>]

I installed parts of gnome 2.1.x, but then decided to downgrade
to gnome 2.0.3. Now I have the problem that gdk-pixbuf.loaders
(/usr/local/etc/gtk-2.0/gdk-pixbuf.loaders) refers to

/usr/local/lib/gtk-2.0/2.0.102/loaders/

instead of

/usr/local/lib/gtk-2.0/2.0.0/loaders/

Reinstalling gtk+ does not regenerate gdk-pixbuf.loaders. 
Rewriting the entries manually doesn't seem to work, since
other programs (after recompiling -- e.g. regression tests
of libglade) still need 2.0.102 libraries.

I'm totally lost. What should I do to get a proper gtk+-2.0.9
installation?

Regards,
  Andreas