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#!/usr/bin/env sh
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.

# Do nothing. This exists only for not requiring qemu-aarch64-static copy.
# Recent Debian (buster or later) and Ubuntu (18.10 or later) on amd64 hosts or
# arm64 host don't require qemu-aarch64-static in Docker image. But old Debian
# and Ubuntu hosts on amd64 require qemu-aarch64-static in Docker image.
#
# We use "COPY qemu* /usr/bin/" in Dockerfile. If we don't put any "qemnu*",
# the "COPY" is failed. It means that we always require "qemu*" even if we
# use recent Debian/Ubuntu or arm64 host. If we have this dummy "qemu*" file,
# the "COPY" isn't failed. It means that we can copy "qemu*" only when we
# need.
#
# See also "script" in dev/tasks/linux-packages/azure.linux.arm64.yml.
# Azure Pipelines uses old Ubuntu (18.04).
# So we need to put "qemu-aarch64-static" into this directory.