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.

Description:
Directory functions that avoid clobbering STD{IN,OUT,ERR}_FILENO.

Files:
lib/dirent--.h
lib/dirent-safer.h
lib/opendir-safer.c
m4/dirent-safer.m4

Depends-on:
dirent
closedir
dirfd
fcntl
opendir

configure.ac:
gl_DIRENT_SAFER
gl_MODULE_INDICATOR([dirent-safer])

Makefile.am:
lib_SOURCES += opendir-safer.c

Include:
"dirent-safer.h"

License:
GPL

Maintainer:
Eric Blake