I noticed on my Fedora Core 4 system that the mailcap files were never
updated with all the various Gnome applications.  Instead, they put
the information about what mime types they handle in .desktop
applications in /usr/share/applications.  Here's a first cut at
parsing these files.

Right now, I'm using

(desktop-entry-add-entries "/usr/share/applications")

to add mailcap-mime-data entries for everything in there.  I think
something like this should make its way into Gnus, so I'm interested
in how people think I should integrate it.  I also think that the
Freedesktop .keys and .mime files should also be parsed for their
mime-type info, but I haven't had a need for that yet.

An alternative would be to create a mailcap from these files, but
mailcap seems to be an endangered species.

-- 
Alan Shutko <ats@acm.org> - I am the rocks.
Every human heart is human. Henry Wadsworth Longfellow