-struct option;
-int smpi_getopt_long_only (int argc, char *const *argv, const char *options, const struct option *long_options, int *opt_index);
-int smpi_getopt_long (int argc, char *const *argv, const char *options, const struct option *long_options, int *opt_index);
-int smpi_getopt (int argc, char *const *argv, const char *options);