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# 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.
if(DEFINED ENV{BOOST_ROOT} OR DEFINED BOOST_ROOT)
# In older versions of CMake (such as 3.2), the system paths for Boost will
# be looked in first even if we set $BOOST_ROOT or pass -DBOOST_ROOT
set(Boost_NO_SYSTEM_PATHS ON)
endif()
set(BoostAlt_FIND_VERSION_OPTIONS)
if(BoostAlt_FIND_VERSION)
list(APPEND BoostAlt_FIND_VERSION_OPTIONS ${BoostAlt_FIND_VERSION})
endif()
if(BoostAlt_FIND_REQUIRED)
list(APPEND BoostAlt_FIND_VERSION_OPTIONS REQUIRED)
endif()
if(BoostAlt_FIND_QUIETLY)
list(APPEND BoostAlt_FIND_VERSION_OPTIONS QUIET)
endif()
if(ARROW_BOOST_USE_SHARED)
# Find shared Boost libraries.
set(Boost_USE_STATIC_LIBS OFF)
set(BUILD_SHARED_LIBS_KEEP ${BUILD_SHARED_LIBS})
set(BUILD_SHARED_LIBS ON)
find_package(Boost ${BoostAlt_FIND_VERSION_OPTIONS} COMPONENTS system filesystem)
set(BUILD_SHARED_LIBS ${BUILD_SHARED_LIBS_KEEP})
unset(BUILD_SHARED_LIBS_KEEP)
else()
# Find static boost headers and libs
# TODO Differentiate here between release and debug builds
set(Boost_USE_STATIC_LIBS ON)
find_package(Boost ${BoostAlt_FIND_VERSION_OPTIONS} COMPONENTS system filesystem)
endif()
if(Boost_FOUND)
set(BoostAlt_FOUND ON)
if(MSVC_TOOLCHAIN)
# disable autolinking in boost
add_definitions(-DBOOST_ALL_NO_LIB)
if(ARROW_BOOST_USE_SHARED)
# force all boost libraries to dynamic link
add_definitions(-DBOOST_ALL_DYN_LINK)
endif()
endif()
else()
set(BoostAlt_FOUND OFF)
endif()
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