cmake/find_ccache.cmake

#######################
#
#  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
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#  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.
#
#######################

option(ENABLE_CCACHE "Use ccache to speed up rebuilds" ON)
find_program(CCACHE_PROGRAM ccache)
if(CCACHE_PROGRAM AND ${ENABLE_CCACHE})
  message(STATUS "Using ${CCACHE_PROGRAM} as compiler launcher")
  set(CMAKE_CXX_COMPILER_LAUNCHER "${CCACHE_PROGRAM}")
  set(CMAKE_C_COMPILER_LAUNCHER "${CCACHE_PROGRAM}")
endif()