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#!/bin/sh
# SPDX-License-Identifier: (GPL-2.0-only OR LGPL-2.1-only)
# SPDX-FileCopyrightText: 2016-2018 EfficiOS Inc.
# First argument is the path to the kernel headers.
KPATH="$1"
VERSIONFILE=""
if [ -f "${KPATH}/localversion-rt" ]; then
VERSIONFILE="${KPATH}/localversion-rt"
elif [ -f "${KPATH}/source/localversion-rt" ]; then
VERSIONFILE="${KPATH}/source/localversion-rt"
else
echo 0
exit 0
fi
RT_PATCH_VERSION=$(sed -rn 's/^-rt([0-9]+)$/\1/p' "${VERSIONFILE}")
if [ "x${RT_PATCH_VERSION}" = "x" ]; then
echo 0
exit 0
fi
echo "${RT_PATCH_VERSION}"
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