new mail fetching doesn't work for us procmail heretics

[Justin Sheehy <justin@linus.mitre.org>]

I split all of my mail using procmail.  Gnus splitting is powerful
enough, but happens at the wrong time.  I like having my mail be
sorted at arrival time, not when I decide to read it or at some
arbitrary interval.

Under Gnusae previous to the last few pgnus, one can accomplish this with:

(setq nnmail-procmail-directory "~/Mail/incoming"
      nnmail-use-procmail t
      nnmail-procmail-suffix "")

As I have nnml in my gnus-secondary-select-methods, Gnus simply slurps 
mail from each file in ~/Mail/incoming into the nnml group of the same 
name as that file.

If I add a procmail rule that will cause the creation of a new file in 
that directory, Gnus will create the new group.

This is all wonderful.  In fact, I consider it essential.

I have been entirely unable to get this to work with the new
mail-source stuff.  I can send more details of its failure if they are
desired, but it seems that this option was just not accounted for.

Am I missing something, is there an upcoming fix, or what?

-Justin