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148 lines
6 KiB
CMake
148 lines
6 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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#[=======================================================================[.rst:
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CMakeExpandImportedTargets
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--------------------------
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.. deprecated:: 3.4
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Do not use.
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This module was once needed to expand imported targets to the underlying
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libraries they reference on disk for use with the :command:`try_compile`
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and :command:`try_run` commands. These commands now support imported
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libraries in their ``LINK_LIBRARIES`` options (since CMake 2.8.11
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for :command:`try_compile` and since CMake 3.2 for :command:`try_run`).
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This module does not support the policy :policy:`CMP0022` ``NEW``
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behavior or use of the :prop_tgt:`INTERFACE_LINK_LIBRARIES` property
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because :manual:`generator expressions <cmake-generator-expressions(7)>`
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cannot be evaluated during configuration.
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::
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CMAKE_EXPAND_IMPORTED_TARGETS(<var> LIBRARIES lib1 lib2...libN
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[CONFIGURATION <config>])
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CMAKE_EXPAND_IMPORTED_TARGETS() takes a list of libraries and replaces
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all imported targets contained in this list with their actual file
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paths of the referenced libraries on disk, including the libraries
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from their link interfaces. If a CONFIGURATION is given, it uses the
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respective configuration of the imported targets if it exists. If no
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CONFIGURATION is given, it uses the first configuration from
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${CMAKE_CONFIGURATION_TYPES} if set, otherwise ${CMAKE_BUILD_TYPE}.
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::
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cmake_expand_imported_targets(expandedLibs
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LIBRARIES ${CMAKE_REQUIRED_LIBRARIES}
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CONFIGURATION "${CMAKE_TRY_COMPILE_CONFIGURATION}" )
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#]=======================================================================]
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function(CMAKE_EXPAND_IMPORTED_TARGETS _RESULT )
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set(options )
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set(oneValueArgs CONFIGURATION )
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set(multiValueArgs LIBRARIES )
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cmake_parse_arguments(CEIT "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
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if(CEIT_UNPARSED_ARGUMENTS)
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message(FATAL_ERROR "Unknown keywords given to CMAKE_EXPAND_IMPORTED_TARGETS(): \"${CEIT_UNPARSED_ARGUMENTS}\"")
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endif()
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if(NOT CEIT_CONFIGURATION)
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# Would be better to test GENERATOR_IS_MULTI_CONFIG global property,
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# but the documented behavior specifically says we check
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# CMAKE_CONFIGURATION_TYPES and fall back to CMAKE_BUILD_TYPE if no
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# config types are defined.
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if(CMAKE_CONFIGURATION_TYPES)
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list(GET CMAKE_CONFIGURATION_TYPES 0 CEIT_CONFIGURATION)
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else()
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set(CEIT_CONFIGURATION ${CMAKE_BUILD_TYPE})
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endif()
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endif()
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# handle imported library targets
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set(_CCSR_REQ_LIBS ${CEIT_LIBRARIES})
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set(_CHECK_FOR_IMPORTED_TARGETS TRUE)
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set(_CCSR_LOOP_COUNTER 0)
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while(_CHECK_FOR_IMPORTED_TARGETS)
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math(EXPR _CCSR_LOOP_COUNTER "${_CCSR_LOOP_COUNTER} + 1 ")
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set(_CCSR_NEW_REQ_LIBS )
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set(_CHECK_FOR_IMPORTED_TARGETS FALSE)
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foreach(_CURRENT_LIB ${_CCSR_REQ_LIBS})
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if(TARGET "${_CURRENT_LIB}")
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get_target_property(_importedConfigs "${_CURRENT_LIB}" IMPORTED_CONFIGURATIONS)
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else()
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set(_importedConfigs "")
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endif()
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if (_importedConfigs)
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# message(STATUS "Detected imported target ${_CURRENT_LIB}")
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# Ok, so this is an imported target.
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# First we get the imported configurations.
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# Then we get the location of the actual library on disk of the first configuration.
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# then we'll get its link interface libraries property,
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# iterate through it and replace all imported targets we find there
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# with there actual location.
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# guard against infinite loop: abort after 100 iterations ( 100 is arbitrary chosen)
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if ("${_CCSR_LOOP_COUNTER}" LESS 100)
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set(_CHECK_FOR_IMPORTED_TARGETS TRUE)
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# else ()
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# message(STATUS "********* aborting loop, counter : ${_CCSR_LOOP_COUNTER}")
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endif ()
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# if one of the imported configurations equals ${CMAKE_TRY_COMPILE_CONFIGURATION},
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# use it, otherwise simply use the first one:
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list(FIND _importedConfigs "${CEIT_CONFIGURATION}" _configIndexToUse)
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if("${_configIndexToUse}" EQUAL -1)
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set(_configIndexToUse 0)
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endif()
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list(GET _importedConfigs ${_configIndexToUse} _importedConfigToUse)
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get_target_property(_importedLocation "${_CURRENT_LIB}" IMPORTED_LOCATION_${_importedConfigToUse})
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get_target_property(_linkInterfaceLibs "${_CURRENT_LIB}" IMPORTED_LINK_INTERFACE_LIBRARIES_${_importedConfigToUse} )
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list(APPEND _CCSR_NEW_REQ_LIBS "${_importedLocation}")
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# message(STATUS "Appending lib ${_CURRENT_LIB} as ${_importedLocation}")
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if(_linkInterfaceLibs)
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foreach(_currentLinkInterfaceLib ${_linkInterfaceLibs})
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# message(STATUS "Appending link interface lib ${_currentLinkInterfaceLib}")
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if(_currentLinkInterfaceLib)
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list(APPEND _CCSR_NEW_REQ_LIBS "${_currentLinkInterfaceLib}" )
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endif()
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endforeach()
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endif()
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else()
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# "Normal" libraries are just used as they are.
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list(APPEND _CCSR_NEW_REQ_LIBS "${_CURRENT_LIB}" )
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# message(STATUS "Appending lib directly: ${_CURRENT_LIB}")
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endif()
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endforeach()
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set(_CCSR_REQ_LIBS ${_CCSR_NEW_REQ_LIBS} )
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endwhile()
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# Finally we iterate once more over all libraries. This loop only removes
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# all remaining imported target names (there shouldn't be any left anyway).
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set(_CCSR_NEW_REQ_LIBS )
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foreach(_CURRENT_LIB ${_CCSR_REQ_LIBS})
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if(TARGET "${_CURRENT_LIB}")
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get_target_property(_importedConfigs "${_CURRENT_LIB}" IMPORTED_CONFIGURATIONS)
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else()
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set(_importedConfigs "")
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endif()
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if (NOT _importedConfigs)
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list(APPEND _CCSR_NEW_REQ_LIBS "${_CURRENT_LIB}" )
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# message(STATUS "final: appending ${_CURRENT_LIB}")
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# else ()
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# message(STATUS "final: skipping ${_CURRENT_LIB}")
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endif ()
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endforeach()
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# message(STATUS "setting -${_RESULT}- to -${_CCSR_NEW_REQ_LIBS}-")
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set(${_RESULT} "${_CCSR_NEW_REQ_LIBS}" PARENT_SCOPE)
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endfunction()
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