[Bug c++/121614] New: c++ modules, gcc fails to define 'vtable' and create 'typeinfo' symbol

[mtxn at duck dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121614

            Bug ID: 121614
           Summary: c++ modules, gcc fails to define 'vtable' and create
                    'typeinfo' symbol
           Product: gcc
           Version: 16.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: mtxn at duck dot com
  Target Milestone: ---

Bug consist of gcc failing to define 'vtable' and create 'typeinfo' symbols
when using modules, when declaration and definition are located in different
compilation units.

example:
https://gitlab.com/mtxn64/gcc-issue

I've also confirmed this bug with pinskia on a matrix chat:
https://matrix.to/#/!lRaxIUDxWSvbRqfLzT:matrix.org/$175555910922265pxuGX:matrix.org?via=matrix.org&via=librem.one&via=neko.dev