Hi,

I remembered I should send this to the list as well. It is in the
October mailing.

Here is R2 for "Build database files":

    https://isocpp.org/files/papers/P2977R2.html

Changes from R1:

  - adding a language indicator to support specifying more than just C++
  - set names may now be null; these sets may not be visible from any other set
  - move baseline arguments to the set rather than each translation unit

I've yet to update CMake to follow this update, but plan to do so.

Thanks,

--Ben