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:
Determine the number of screen columns needed for a string.

Files:
lib/mbswidth.h
lib/mbswidth.c
m4/mbstate_t.m4
m4/mbrtowc.m4
m4/mbswidth.m4

Depends-on:
wchar
wctype-h
mbrtowc
mbsinit
wcwidth
extensions

configure.ac:
gl_MBSWIDTH

Makefile.am:
lib_SOURCES += mbswidth.h mbswidth.c

Include:
"mbswidth.h"

License:
GPL

Maintainer:
all