long-options: add parse_gnu_standard_options_only Discussed in https://bugs.gnu.org/33468 . * lib/long-options.c (parse_long_options): Use EXIT_SUCCESS instead of 0. (parse_gnu_standard_options_only): Add function to process the GNU default options --help and --version and fail for any other unknown long or short option. See https://gnu.org/prep/standards/html_node/Command_002dLine-Interfaces.html . * lib/long-options.h (parse_gnu_standard_options_only): Declare it. * modules/long-options (depends-on): Add stdbool, exitfail. * top/maint.mk (sc_prohibit_long_options_without_use): Update syntax-check rule, add new function name.

#include <sys/types.h>
#include <sys/stat.h>
#include <stdbool.h>

#include "hash.h"

extern void record_file (Hash_table *ht, char const *file,
                         struct stat const *stats)
#if defined __GNUC__ && ((__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || __GNUC__ > 3)
  __attribute__ ((nonnull (2, 3)))
#endif
;

extern bool seen_file (Hash_table const *ht, char const *file,
                       struct stat const *stats);