https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61691
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |INVALID
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
This is the correct behaviour, the code needs to be fixed.
See Bug 61659 comment 14 for the reason GCC started diagnosing this (the
virtual destructor must be output so it's available for LTO and that destructor
releases the reference on the smart pointer and so requires the pointed-to type
to be complete)
