[Bug c++/98885] [modules] forward declaration of classes prevent them from being exported at the point of actual declaration

[pilarlatiesa at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98885

--- Comment #2 from Pilar Latiesa <pilarlatiesa at gmail dot com> ---
(In reply to Nathan Sidwell from comment #1)
> This is ill-formed.  an exported entity must be so-declared on its first
> declaration.
> 
> A diagnostic is missing on the definition of the class.

I see. Thanks.

What about the second testcase? How a pattern like that is supposed to be
modularized?