Mercurial > gnulib
view m4/printf-frexpl.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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# printf-frexpl.m4 serial 10 dnl Copyright (C) 2007, 2009-2019 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. dnl Check how to define printf_frexpl() without linking with libm. AC_DEFUN([gl_FUNC_PRINTF_FREXPL], [ AC_REQUIRE([gl_MATH_H_DEFAULTS]) AC_REQUIRE([gl_LONG_DOUBLE_VS_DOUBLE]) dnl Subset of gl_FUNC_FREXPL_NO_LIBM. gl_CHECK_FREXPL_NO_LIBM if test $gl_cv_func_frexpl_no_libm = yes; then gl_FUNC_FREXPL_WORKS case "$gl_cv_func_frexpl_works" in *yes) gl_func_frexpl_no_libm=yes ;; *) gl_func_frexpl_no_libm=no; REPLACE_FREXPL=1 ;; esac else gl_func_frexpl_no_libm=no dnl Set REPLACE_FREXPL here because the system may have frexpl in libm. REPLACE_FREXPL=1 fi if test $gl_func_frexpl_no_libm = yes; then AC_DEFINE([HAVE_FREXPL_IN_LIBC], [1], [Define if the frexpl function is available in libc.]) dnl Also check whether it's declared. dnl Mac OS X 10.3 has frexpl() in libc but doesn't declare it in <math.h>. AC_CHECK_DECL([frexpl], , [HAVE_DECL_FREXPL=0], [[#include <math.h>]]) fi gl_CHECK_LDEXPL_NO_LIBM if test $gl_cv_func_ldexpl_no_libm = yes; then gl_FUNC_LDEXPL_WORKS case "$gl_cv_func_ldexpl_works" in *yes) AC_DEFINE([HAVE_LDEXPL_IN_LIBC], [1], [Define if the ldexpl function is available in libc.]) dnl Also check whether it's declared. dnl Mac OS X 10.3 has ldexpl() in libc but doesn't declare it in <math.h>. AC_CHECK_DECL([ldexpl], , [HAVE_DECL_LDEXPL=0], [[#include <math.h>]]) ;; esac fi ])