Re: [bug-gettext] [bug #54479] libintl_setlocale(LC_ALL, "") fails under some locales in macOS

[Dapeng Gao]

Hi Roumen,

I wrote the following program to test these cases:

#include <stdio.h>
#include <stdlib.h>
#include <locale.h>

int main() {

 printf("%s\n", setlocale(LC_ALL, "en_US.UTF-8"));
 printf("%s\n", setlocale(LC_ALL, NULL));

 return 0;
}

In this particular case (locale = "en_US.UTF-8"), `setlocale` 
successfully set the locale and returned "en_US.UTF-8". However, both of 
the other cases failed and returned NULL.

Best wishes,
Dapeng Gao