libming and ploticus (Attn: SWI-Prolog maintainer)

[Andrew Schulman]

> > :)  Just kidding... but how annoying that Prolog has already
> > claimed /usr/bin/pl...
> 
> Yes, it's a filename clash -- we had those before.  The solution would be
> for *both* packages to provide a uniquely-named executable and a
> postinstall script that would create a symlink.  Then the nature of
> /usr/bin/pl would depend on the order of package installation (actually,
> the order of postinstall script execution).

Works for me.