I think a lot could be fixed with functions that don't access global state, but get that state as an additional parameter. E.g. I would really like `snprintf_l(

I think a lot could be fixed with functions that don't access global state, but get that state as an additional parameter. E.g. I would really like `snprintf_l()`/`fprintf_l()` to be supported by glibc. It is supported by FreeBSD, macOS (Darwin), and even Windows (with a `_` prefix for some reason)! Not by GNU libc.