[Bug c++/83083] c++2a concepts without -fconcepts

[h2+bugs at fsfe dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83083

--- Comment #1 from Hannes Hauswedell <h2+bugs at fsfe dot org> ---
*polite ping*

Any chance this will change for gcc9? I know some changes are pending for the
San Diego WG21 meeting, but these are only additions to what is already merged
in the DS. It would be great to have concepts as per the DS in GCC9. Thank you!