On Sat, Jun 15, 2019 at 5:03 AM Ivan Matek via Std-Proposals <std-proposals@lists.isocpp.org> wrote:
I agree, and although I understand that people prefer module solutions we all know that there are still C++03 codebases in the wild. So it is unrealistic to expect that everybody will jump to modules train and rework their libraries and start using c++20.

But they are going to jump to C++23 just to use your proposed feature?
 Nevin ":-)" Liber  <mailto:nevin@cplusplusguy.com>  +1-847-691-1404