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# SPDX-License-Identifier: GPL-2.0-or-later WITH Autoconf-exception-2.0
#
# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_recursive_eval.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_RECURSIVE_EVAL(VALUE, RESULT)
#
# DESCRIPTION
#
# Interpolate the VALUE in loop until it doesn't change, and set the
# result to $RESULT. This version has a recursion limit (10).
#
# LICENSE
#
# Copyright (c) 2008 Alexandre Duret-Lutz <adl@gnu.org>
# Copyright (c) 2024 David Lamparter <equinox@opensourcerouting.org>
AC_DEFUN([AX_RECURSIVE_EVAL],
[_lcl_receval="$1"
$2=`(test "x$prefix" = xNONE && prefix="$ac_default_prefix"
test "x$exec_prefix" = xNONE && exec_prefix="${prefix}"
_lcl_receval_old=''
for _rec_limit in 1 2 3 4 5 6 7 8 9 10; do
test "[$]_lcl_receval_old" = "[$]_lcl_receval" && break
_lcl_receval_old="[$]_lcl_receval"
eval _lcl_receval="\"[$]_lcl_receval\""
done
echo "[$]_lcl_receval")`])
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