[Bug 251767] wcswidth() from libc reports wrong string lenght (no unicode 9 support)

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=251767

--- Comment #3 from dmilith <dmilith at me.com> ---
Ok, it's not that easy.
I rebuilt my system from stable/12 with widths.txt from CURRENT as you
suggested… but it didn't help. Here's my example C code that prints "length 1"
for multibyte long char:

```C
#include <stdio.h>
#include <stddef.h>
#include <wchar.h>
#include <locale.h>

int main () {
  setlocale(LC_ALL, "en_US.UTF-8");
  const wchar_t* wc = L"👌";
  int length = wcswidth(wc, 1);
  printf("%ls, length: %d\n", wc, length);
}
```

outputs:

👌, length: 1

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