1  /* testlocale - test whether the locale given by the environment is installed.
       2     Copyright (C) 2003, 2006, 2019 Free Software Foundation, Inc.
       3  
       4     This program is free software: you can redistribute it and/or modify
       5     it under the terms of the GNU General Public License as published by
       6     the Free Software Foundation; either version 3 of the License, or
       7     (at your option) any later version.
       8  
       9     This program is distributed in the hope that it will be useful,
      10     but WITHOUT ANY WARRANTY; without even the implied warranty of
      11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      12     GNU General Public License for more details.
      13  
      14     You should have received a copy of the GNU General Public License
      15     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
      16  
      17  #ifdef HAVE_CONFIG_H
      18  # include <config.h>
      19  #endif
      20  
      21  #include <locale.h>
      22  #include <stdio.h>
      23  #include <stdlib.h>
      24  
      25  /* This must match intl/localename.c.  */
      26  #if defined _LIBC || (defined __GNU_LIBRARY__ && __GNU_LIBRARY__ >= 2)
      27  # define HAVE_LOCALE_NULL
      28  #endif
      29  
      30  int
      31  main (int argc, char *argv[])
      32  {
      33  /* This test must match the one in intl/localename.c.  */
      34  #if defined HAVE_LC_MESSAGES && defined HAVE_LOCALE_NULL
      35    if (setlocale (LC_ALL, "") == NULL)
      36      /* Couldn't set locale.  */
      37      exit (77);
      38  #endif
      39    exit (0);
      40  }