Mercurial > gnulib
view m4/fstatat.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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# fstatat.m4 serial 4 dnl Copyright (C) 2004-2019 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. # Written by Jim Meyering. # If we have the fstatat function, and it has the bug (in AIX 7.1) # that it does not fill in st_size correctly, use the replacement function. AC_DEFUN([gl_FUNC_FSTATAT], [ AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS]) AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_REQUIRE([gl_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK]) AC_REQUIRE([AC_CANONICAL_HOST]) AC_CHECK_FUNCS_ONCE([fstatat]) if test $ac_cv_func_fstatat = no; then HAVE_FSTATAT=0 else dnl Test for an AIX 7.1 bug; see dnl <https://lists.gnu.org/r/bug-tar/2011-09/msg00015.html>. AC_CACHE_CHECK([whether fstatat (..., 0) works], [gl_cv_func_fstatat_zero_flag], [AC_RUN_IFELSE( [AC_LANG_SOURCE( [[ #include <fcntl.h> #include <sys/stat.h> int main (void) { struct stat a; return fstatat (AT_FDCWD, ".", &a, 0) != 0; } ]])], [gl_cv_func_fstatat_zero_flag=yes], [gl_cv_func_fstatat_zero_flag=no], [case "$host_os" in aix*) gl_cv_func_fstatat_zero_flag="guessing no";; *) gl_cv_func_fstatat_zero_flag="guessing yes";; esac ]) ]) case $gl_cv_func_fstatat_zero_flag+$gl_cv_func_lstat_dereferences_slashed_symlink in *yes+*yes) ;; *) REPLACE_FSTATAT=1 ;; esac case $host_os in solaris*) REPLACE_FSTATAT=1 ;; esac case $REPLACE_FSTATAT,$gl_cv_func_fstatat_zero_flag in 1,*yes) AC_DEFINE([HAVE_WORKING_FSTATAT_ZERO_FLAG], [1], [Define to 1 if fstatat (..., 0) works. For example, it does not work in AIX 7.1.]) ;; esac fi ])