message-fetch-field vs require

[Stephen Leake]

I've got a function that uses message-fetch-field. The file has (require
'message). But the byte compiler still complains:

bzr-gnus.el:155:1:Warning: the following functions might not be defined at
    runtime: message-fetch-field, mm-save-part-to-file

I've tried wrapping the require in "eval-and-compile"; no help.

Can anyone explain what's going on?

-- 
-- Stephe