https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95545
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to David Edelsohn from comment #0) > which creates an ambiguity when a user references thread:: without > std::thread. Could you show an example of code that's ambiguous? > Would libstdc++ consider a similar solution? Could you clarify what the solution involves? Basically I don't understand the problem being described, so I don't see how to solve it.