Tested x86_64-linux and freestanding mips-elf.
This C++20 header is also supposed to be present for freestanding.
libstdc++-v3/ChangeLog:
PR libstdc++/103726
* include/Makefile.am: Install for
freestanding.
* include/Makefile.in: Regenerate.
* include/st
Tested x86_64-linux and by minimally tested on mips-none-elf.
Pushed to trunk.
The standard says that should be present for freestanding.
That was intentionally left out of the initial implementation, but can
be done without much trouble. The header should be moved to libsupc++ at
some point in
