82 lines
2.9 KiB
CMake
82 lines
2.9 KiB
CMake
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#[=======================================================================[.rst:
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FindASIO
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--------
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Finds the ASIO SDK by searching for the SDK ZIP in CMAKE_PREFIX_PATH and
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CMAKE_CURRENT_BINARY_DIR. Alternatively, you may manually specify the path of
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the SDK ZIP with the ASIO_SDK_ZIP_PATH variable, which can be used for caching
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in CI scripts.
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If the ZIP is found, this module extracts it.
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The ZIP extraction is skipped if the unzipped SDK is found.
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This module provides an `ASIO::host` IMPORT library target for building host
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applications which use ASIO drivers. If you want to build an ASIO driver, this
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module may serve as a useful start but you will need to modify it.
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#]=======================================================================]
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if(NOT WIN32)
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message(WARNING "ASIO is only supported on Windows.")
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set(ASIO_FOUND OFF)
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return()
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endif()
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file(GLOB HEADER_FILE
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"${CMAKE_CURRENT_BINARY_DIR}/asiosdk*/common/asio.h"
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"${CMAKE_PREFIX_PATH}/asiosdk*/common/asio.h"
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# The old build systems before PortAudio 19.8 used to look for the ASIO SDK
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# in the same parent directory as the source code repository. This is no
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# longer advised or documented but kept for backwards compatibility.
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"${CMAKE_CURRENT_SOURCE_DIR}/../asiosdk*/common/asio.h"
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)
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if(NOT EXISTS "${HEADER_FILE}")
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# The file(ARCHIVE_EXTRACT) command was added in CMake 3.18, so if using an
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# older version of CMake, the user needs to extract it themselves.
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if(CMAKE_VERSION VERSION_LESS 3.18)
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message(STATUS "ASIO SDK NOT found. Download the ASIO SDK ZIP from "
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"https://www.steinberg.net/asiosdk and extract it to "
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"${CMAKE_PREFIX_PATH} or ${CMAKE_CURRENT_BINARY_DIR}"
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)
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return()
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endif()
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file(GLOB results
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"${ASIO_SDK_ZIP_PATH}"
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"${CMAKE_CURRENT_BINARY_DIR}/asiosdk*.zip"
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"${CMAKE_PREFIX_PATH}/asiosdk*.zip"
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"${CMAKE_CURRENT_SOURCE_DIR}/../asiosdk*.zip"
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)
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foreach(f ${results})
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if(EXISTS "${f}")
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message(STATUS "Extracting ASIO SDK ZIP archive: ${f}")
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file(ARCHIVE_EXTRACT INPUT "${f}" DESTINATION "${CMAKE_CURRENT_BINARY_DIR}")
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endif()
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endforeach()
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file(GLOB HEADER_FILE "${CMAKE_CURRENT_BINARY_DIR}/asiosdk*/common/asio.h")
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endif()
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get_filename_component(HEADER_DIR "${HEADER_FILE}" DIRECTORY)
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get_filename_component(ASIO_ROOT "${HEADER_DIR}" DIRECTORY)
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if(ASIO_ROOT)
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set(ASIO_FOUND TRUE)
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message(STATUS "Found ASIO SDK: ${ASIO_ROOT}")
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if(ASIO_FOUND AND NOT TARGET ASIO::host)
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add_library(ASIO::host INTERFACE IMPORTED)
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target_sources(ASIO::host INTERFACE
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"${ASIO_ROOT}/common/asio.cpp"
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"${ASIO_ROOT}/host/asiodrivers.cpp"
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"${ASIO_ROOT}/host/pc/asiolist.cpp"
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)
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target_include_directories(ASIO::host INTERFACE
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"${ASIO_ROOT}/common"
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"${ASIO_ROOT}/host"
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"${ASIO_ROOT}/host/pc"
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)
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target_link_libraries(ASIO::host INTERFACE ole32 uuid)
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endif()
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else()
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message(STATUS "ASIO SDK NOT found")
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endif()
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