From mboxrd@z Thu Jan  1 00:00:00 1970
From: Aaron Ecay <aaronecay@gmail.com>
Subject: Re: Filters not working
Date: Fri, 9 Aug 2013 16:30:26 -0400
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To: "Thomas S. Dye" <tsd@tsdye.com>
Cc: "emacs-orgmode@gnu.org" <emacs-orgmode@gnu.org>, Charles Berry <ccberry@ucsd.edu>

Thomas,

Since backends are no longer passed as symbols, but as structs, I
think you should use the `org-export-derived-backend-p' function.
Does your code work if you replace `(memq backend ...)' with
`(org-export-derived-backend-p backend 'latex)'?  (beamer is derived
from latex, so you don't need a separate test for it.)

Aaron