Q on byte-compiling and define-derived-mode

[Drew Adams]

I have a file that starts with (define-derived-mode foo-mode...). Later in
the file I define a function that calls (foo-mode).  When I byte-compile the
file I get this warning:

 In end of data:
 foobar.el:861:1:Warning: the function `foo-mode' is not known to be
     defined.

Is this normal or a bug? Shouldn't the byte-compiler be able to tell that
foo-mode is defined in the same file (especially since the mode definition
is the first thing in the file)?

(In GNU Emacs 22.0.50.1 (i386-mingw-nt5.1.2600) of 2006-03-20 on W2ONE X
server distributor `Microsoft Corp.', version 5.1.2600 configured using
`configure --with-gcc (3.4) --cflags -Id:/g/include')