Win32Api getopts: -mno-cygwin: optind undefined

[Gerald Reno]

Is it possible to link with win32api and still use
getopts?  When I attempt this I get undefined
reference for optind, optarg, etc.  But all is well if
I remove -mno-cygwin.  Do I need to link with a
separate lib?

g++ test.c -ansi -mno-cygwin -o test.exe  NOT OK
g++ test.c -ansi -o test.exe              OK

----------------------------------------
// test.c
#include <stdio.h>
#include <unistd.h>
    int getopt(int argc, char * const argv[],
        const char *optstring);
    extern char *optarg;
    extern int optind, opterr, optopt;
    int
    main (int argc, char **argv)
    {
      int c;
      int digit_optind = 0;
      while (1)
        {
          int this_option_optind = optind ? optind :
1;
          int option_index = 0;
          c = getopt (argc, argv, "abc:d:012");
          if (c == -1)
        break;
          switch (c)
            {
            case 0:
      //        printf ("option %s",
long_options[option_index].name);
              if (optarg)
                printf (" with arg %s", optarg);
              printf ("\n");
              break;
            case '0':
            case '1':
            case '2':
              if (digit_optind != 0 && digit_optind !=
this_option_optind)
                printf ("digits occur in two different
argv-elements.\n");
              digit_optind = this_option_optind;
              printf ("option %c\n", c);
              break;
            case 'a':
              printf ("option a\n");
              break;
            case 'b':
              printf ("option b\n");
              break;
            case 'c':
              printf ("option c with value `%s'\n",
optarg);
              break;
            case 'd':
              printf ("option d with value `%s'\n",
optarg);
              break;
            case '?':
              break;
            default:
              printf ("?? getopt returned character
code 0%o ??\n", c);
            }
        }
      if (optind < argc)
        {
          printf ("non-option ARGV-elements: ");
          while (optind < argc)
          printf ("%s ", argv[optind++]);
          printf ("\n");
        }
      exit (0);
    }

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