implicit typename deprecated, "see documentation"

[Paul Koning]

In testing a newer version (3.2.3) of gcc than we were using before, I
get this error message:

filename.hh: In member function .......:
filename.hh:556: warning: `typename ...' is implicitly a typename
filename.hh:556: warning: implicit typename is deprecated, please see the documentation for details

Ok, so what does this mean?  And what documentation am I supposed to
refer to for details?  Not the gcc documentation -- there's nothing in
there that describes this message.

Is there a switch to turn off this warning?  Since I have -Werror in
effect, I can't proceed unless I can fix this or ignore it, and I
can't fix it because I can't find documentation for it.

Thanks,
	paul