#include <argp.h>

const char *argp_program_version = "foo";
const char *argp_program_bug_address = "foo@example.org";

static const struct argp_option options[] =
  {
    { "system", 's', "SYSTEM", 0,
      "assume SYSTEM as the current system type" },
    { 0, 0, 0, 0, 0 }
  };

static const struct argp argp =
  {
    options, NULL,
    NULL, "doc",
    NULL, NULL,
    NULL
  };

int
main (int argc, char *argv[])
{
  argp_parse (&argp, argc, argv, 0, 0, 0);
  return 0;
}