For MinGW this is tricky to do as a two-step process like it was implemented,
as `std:🧵:native_handle()` is implementation-defined and depending on
the MinGW distribution, it may or may not be a pthread handle.
With mingw-gcc as packaged in Linux distros with pthread support it worked
fine, but with llvm-mingw it was problematic.
Setting the name in the thread directly as done for Apple platforms is simpler
and works fine.
Co-authored-by: Hein-Pieter van Braam-Stewart <hp@tmm.cx>
d137ccbfc8