Hi OpenBSD folks,
I tried building the fmt library on OpenBSD 7.4 on x86_64 and a few of
its unit tests fail. First we thought it was maybe a libc++ bug, but in
fact it seems to be an OpenBSD bug:
Reduced case:
```c
#include <stdio.h>
#include <locale.h>
#include <time.h>
#include <wchar.h>
int main() {
setlocale(LC_TIME, "es_ES.UTF-8");
wchar_t str[100];
time_t t = time(NULL);
wcsftime(str, 100, L"%a", localtime(&t));
wprintf(L"%ls\n", str);
}
```
When run on a Tuesday, it gives "Tue". It should be outputting "mar",
for Spanish "martes" (meaning Tuesday). That's what I get with macOS and
FreeBSD.
Giving the output in the wrong language looks like a bug.
See also:
https://github.com/fmtlib/fmt/issues/3670
https://github.com/llvm/llvm-project/issues/71871
Thanks,
Sean