master_sites and opendarwin (was: Re: SDL_Perl installing troubles!)

[markd at macports.org]

Juan Manuel Palacios <jmpp at macports.org> writes:
>	As simple as updating the Portfiles as we go along, encouraging  
>users to submit patches if they care enough to fix them themselves.  
>While on the subject, ltmain13 and ltconfig13 should be moved out of  
>Yve's dir and into their own, with ports fetching them through  
>macports:ltmain13 & macports:ltconfig13 master_sites entries.

What are ltmain and ltconfig for?  Will they eventually go away when apps
are updated to support Darwin?

Mark