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#! /bin/sh
# Get a variable's value from a makefile:
#
# $ makefile-getvar Makefile VARIABLE VARIABLE ...
#
# If multiple variables are specified, they will be printed one per line.
#
# SPDX-FileCopyrightText: Copyright 2024 Arm Limited and/or its affiliates <open-source-office@arm.com>
# SPDX-License-Identifier: GPL-2.0-only
set -eu
if [ $# -lt 2 ]; then
echo "Get a variable's value from a Makefile:"
echo "$ makefile-getvar Makefile VARIABLE VARIABLE ..."
exit 0
fi
MAKEFILE=$1
shift
if [ ! -f "$MAKEFILE" ]; then
echo "$MAKEFILE is not a file"
exit 1
fi
for VARIABLE in $*; do
make -f - $VARIABLE.var <<EOF
include $MAKEFILE
%.var:
@echo \$(\$*)
EOF
done
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