Mercurial > gnulib
view m4/signalblocking.m4 @ 40198:5a34193cbc07
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.
| author | Bernhard Voelker <mail@bernhard-voelker.de> |
|---|---|
| date | Thu, 29 Nov 2018 09:06:26 +0100 |
| parents | b06060465f09 |
| children |
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# signalblocking.m4 serial 14 dnl Copyright (C) 2001-2002, 2006-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. # Determine available signal blocking primitives. Three different APIs exist: # 1) POSIX: sigemptyset, sigaddset, sigprocmask # 2) SYSV: sighold, sigrelse # 3) BSD: sigblock, sigsetmask # For simplicity, here we check only for the POSIX signal blocking. AC_DEFUN([gl_SIGNALBLOCKING], [ AC_REQUIRE([gl_SIGNAL_H_DEFAULTS]) AC_REQUIRE([gl_CHECK_TYPE_SIGSET_T]) if test $gl_cv_type_sigset_t = yes; then AC_CHECK_FUNC([sigprocmask], [gl_cv_func_sigprocmask=1]) fi if test -z "$gl_cv_func_sigprocmask"; then HAVE_POSIX_SIGNALBLOCKING=0 fi ]) # Prerequisites of lib/sigprocmask.c. AC_DEFUN([gl_PREREQ_SIGPROCMASK], [:])