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Merge branch 'm4-serial-fix' into 'main'

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m4: update ax_check_compile_flag.m4 from autoconf-archive

See merge request tpo/core/tor!813
This commit is contained in:
David Goulet 2024-04-29 20:00:44 +00:00
commit e12a26e4d0
1 changed files with 39 additions and 37 deletions
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m4/ax_check_compile_flag.m4
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@ -1,43 +1,45 @@
# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de> # ===========================================================================
# Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com> # https://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html
# # ===========================================================================
# This program is free software: you can redistribute it and/or modify it #
# under the terms of the GNU General Public License as published by the # SYNOPSIS
# Free Software Foundation, either version 3 of the License, or (at your #
# option) any later version. # AX_CHECK_COMPILE_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS], [INPUT])
# #
# This program is distributed in the hope that it will be useful, but # DESCRIPTION
# WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General # Check whether the given FLAG works with the current language's compiler
# Public License for more details. # or gives an error. (Warnings, however, are ignored)
# #
# You should have received a copy of the GNU General Public License along # ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on
# with this program. If not, see <https://www.gnu.org/licenses/>. # success/failure.
# #
# As a special exception, the respective Autoconf Macro's copyright owner # If EXTRA-FLAGS is defined, it is added to the current language's default
# gives unlimited permission to copy, distribute and modify the configure # flags (e.g. CFLAGS) when the check is done. The check is thus made with
# scripts that are the output of Autoconf when processing the Macro. You # the flags: "CFLAGS EXTRA-FLAGS FLAG". This can for example be used to
# need not follow the terms of the GNU General Public License when using # force the compiler to issue an error when a bad flag is given.
# or distributing such scripts, even though portions of the text of the #
# Macro appear in them. The GNU General Public License (GPL) does govern # INPUT gives an alternative input source to AC_COMPILE_IFELSE.
# all other use of the material that constitutes the Autoconf Macro. #
# # NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this
# This special exception to the GPL applies to versions of the Autoconf # macro in sync with AX_CHECK_{PREPROC,LINK}_FLAG.
# Macro released by the Autoconf Archive. When you make and distribute a #
# modified version of the Autoconf Macro, you may extend this special # LICENSE
# exception to the GPL to apply to your modified version as well. #
# Copying and distribution of this file, with or without modification, are # Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
# permitted in any medium without royalty provided the copyright notice # Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
# and this notice are preserved. This file is offered as-is, without any #
# warranty. # Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 5 #serial 7
#serial 6
AC_DEFUN([AX_CHECK_COMPILE_FLAG], AC_DEFUN([AX_CHECK_COMPILE_FLAG],
[AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF [AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF
AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl
AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [ AC_CACHE_CHECK([whether the _AC_LANG compiler accepts $1], CACHEVAR, [
ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS
_AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1" _AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1"
AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])], AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])],