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.

#ifndef _GL_DI_SET_H
# define _GL_DI_SET_H

# include <sys/types.h>

# undef _GL_ATTRIBUTE_NONNULL
# if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || 3 < __GNUC__
#  define _GL_ATTRIBUTE_NONNULL(m) __attribute__ ((__nonnull__ (m)))
# else
#  define _GL_ATTRIBUTE_NONNULL(m)
# endif

struct di_set *di_set_alloc (void);
int di_set_insert (struct di_set *, dev_t, ino_t) _GL_ATTRIBUTE_NONNULL (1);
void di_set_free (struct di_set *) _GL_ATTRIBUTE_NONNULL (1);
int di_set_lookup (struct di_set *dis, dev_t dev, ino_t ino)
  _GL_ATTRIBUTE_NONNULL (1);

#endif