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FindASIO.cmake
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/
FindASIO.cmake
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#@PURPOSE: Provide access to Chris Kohlhoff's ASIO library.
#
#@TARGETS:
# ASIO::ASIO Chris Kohlhoff's ASIO library
#
#@DESCRIPTION: This module produces a single target 'ASIO::ASIO', that can be
# used to link to the asio library. The behavior of this module is undefined
# unless the asio library is in '../../asio' relative to this file.
#
# The 'asio' target generated by this module uses the "standalone" version of
# asio in that it doesn't depend on any Boost libraries.
set(ASIO_FOUND FALSE)
if(TARGET ASIO::ASIO)
set(ASIO_FOUND TRUE)
else()
find_package(Threads QUIET)
if(NOT Threads_FOUND)
if(ASIO_FIND_REQUIRED)
message(FATAL_ERROR "ASIO requires thread support, but it wasn't found.")
else()
if(ASIO_FIND_QUIETLY)
message(STATUS "ASIO requires thread support, but it wasn't found.")
endif()
endif()
else()
find_path(ASIO_ROOT include/asio.hpp
PATHS
# Where asio lives relative to it's official repository
${CMAKE_CURRENT_LIST_DIR}/../../asio/asio
# Where asio should live
${CMAKE_CURRENT_LIST_DIR}/../../asio
)
if(NOT ASIO_ROOT)
if(ASIO_FIND_REQUIRED)
message(FATAL_ERROR "ASIO headers could not be found.")
else()
if(ASIO_FIND_QUIETLY)
message(STATUS "ASIO headers could not be found.")
endif()
endif()
else()
add_library(ASIO::ASIO INTERFACE IMPORTED GLOBAL)
set_target_properties(ASIO::ASIO PROPERTIES
INTERFACE_COMPILE_DEFINITIONS "ASIO_STANDALONE"
INTERFACE_INCLUDE_DIRECTORIES "${ASIO_ROOT}/include"
)
target_link_libraries(ASIO::ASIO INTERFACE Threads::Threads)
set(ASIO_FOUND TRUE)
endif()
endif()
endif()
# ----------------------------------------------------------------------------
# Copyright 2017 Bloomberg Finance L.P.
#
# Licensed 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.