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#.rst:
# CMakeExpandImportedTargets
# --------------------------
#
# Deprecated. Do not use.
#
# This module was once needed to expand imported targets to the underlying
# libraries they reference on disk for use with the :command:`try_compile`
# and :command:`try_run` commands. These commands now support imported
# libraries in their ``LINK_LIBRARIES`` options (since CMake 2.8.11
# for :command:`try_compile` and since CMake 3.2 for :command:`try_run`).
#
# This module does not support the policy :policy:`CMP0022` ``NEW``
# behavior or use of the :prop_tgt:`INTERFACE_LINK_LIBRARIES` property
# because :manual:`generator expressions <cmake-generator-expressions(7)>`
# cannot be evaluated during configuration.
#
# ::
#
# CMAKE_EXPAND_IMPORTED_TARGETS(<var> LIBRARIES lib1 lib2...libN
# [CONFIGURATION <config>])
#
# CMAKE_EXPAND_IMPORTED_TARGETS() takes a list of libraries and replaces
# all imported targets contained in this list with their actual file
# paths of the referenced libraries on disk, including the libraries
# from their link interfaces. If a CONFIGURATION is given, it uses the
# respective configuration of the imported targets if it exists. If no
# CONFIGURATION is given, it uses the first configuration from
# ${CMAKE_CONFIGURATION_TYPES} if set, otherwise ${CMAKE_BUILD_TYPE}.
#
# ::
#
# cmake_expand_imported_targets(expandedLibs
# LIBRARIES ${CMAKE_REQUIRED_LIBRARIES}
# CONFIGURATION "${CMAKE_TRY_COMPILE_CONFIGURATION}" )
#=============================================================================
# Copyright 2012 Kitware, Inc.
# Copyright 2009-2012 Alexander Neundorf <neundorf@kde.org>
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
include(${CMAKE_CURRENT_LIST_DIR}/CMakeParseArguments.cmake)
function(CMAKE_EXPAND_IMPORTED_TARGETS _RESULT )
set(options )
set(oneValueArgs CONFIGURATION )
set(multiValueArgs LIBRARIES )
cmake_parse_arguments(CEIT "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
if(CEIT_UNPARSED_ARGUMENTS)
message(FATAL_ERROR "Unknown keywords given to CMAKE_EXPAND_IMPORTED_TARGETS(): \"${CEIT_UNPARSED_ARGUMENTS}\"")
endif()
if(NOT CEIT_CONFIGURATION)
if(CMAKE_CONFIGURATION_TYPES)
list(GET CMAKE_CONFIGURATION_TYPES 0 CEIT_CONFIGURATION)
else()
set(CEIT_CONFIGURATION ${CMAKE_BUILD_TYPE})
endif()
endif()
# handle imported library targets
set(_CCSR_REQ_LIBS ${CEIT_LIBRARIES})
set(_CHECK_FOR_IMPORTED_TARGETS TRUE)
set(_CCSR_LOOP_COUNTER 0)
while(_CHECK_FOR_IMPORTED_TARGETS)
math(EXPR _CCSR_LOOP_COUNTER "${_CCSR_LOOP_COUNTER} + 1 ")
set(_CCSR_NEW_REQ_LIBS )
set(_CHECK_FOR_IMPORTED_TARGETS FALSE)
foreach(_CURRENT_LIB ${_CCSR_REQ_LIBS})
if(TARGET "${_CURRENT_LIB}")
get_target_property(_importedConfigs "${_CURRENT_LIB}" IMPORTED_CONFIGURATIONS)
else()
set(_importedConfigs "")
endif()
if (_importedConfigs)
# message(STATUS "Detected imported target ${_CURRENT_LIB}")
# Ok, so this is an imported target.
# First we get the imported configurations.
# Then we get the location of the actual library on disk of the first configuration.
# then we'll get its link interface libraries property,
# iterate through it and replace all imported targets we find there
# with there actual location.
# guard against infinite loop: abort after 100 iterations ( 100 is arbitrary chosen)
if ("${_CCSR_LOOP_COUNTER}" LESS 100)
set(_CHECK_FOR_IMPORTED_TARGETS TRUE)
# else ()
# message(STATUS "********* aborting loop, counter : ${_CCSR_LOOP_COUNTER}")
endif ()
# if one of the imported configurations equals ${CMAKE_TRY_COMPILE_CONFIGURATION},
# use it, otherwise simply use the first one:
list(FIND _importedConfigs "${CEIT_CONFIGURATION}" _configIndexToUse)
if("${_configIndexToUse}" EQUAL -1)
set(_configIndexToUse 0)
endif()
list(GET _importedConfigs ${_configIndexToUse} _importedConfigToUse)
get_target_property(_importedLocation "${_CURRENT_LIB}" IMPORTED_LOCATION_${_importedConfigToUse})
get_target_property(_linkInterfaceLibs "${_CURRENT_LIB}" IMPORTED_LINK_INTERFACE_LIBRARIES_${_importedConfigToUse} )
list(APPEND _CCSR_NEW_REQ_LIBS "${_importedLocation}")
# message(STATUS "Appending lib ${_CURRENT_LIB} as ${_importedLocation}")
if(_linkInterfaceLibs)
foreach(_currentLinkInterfaceLib ${_linkInterfaceLibs})
# message(STATUS "Appending link interface lib ${_currentLinkInterfaceLib}")
if(_currentLinkInterfaceLib)
list(APPEND _CCSR_NEW_REQ_LIBS "${_currentLinkInterfaceLib}" )
endif()
endforeach()
endif()
else()
# "Normal" libraries are just used as they are.
list(APPEND _CCSR_NEW_REQ_LIBS "${_CURRENT_LIB}" )
# message(STATUS "Appending lib directly: ${_CURRENT_LIB}")
endif()
endforeach()
set(_CCSR_REQ_LIBS ${_CCSR_NEW_REQ_LIBS} )
endwhile()
# Finally we iterate once more over all libraries. This loop only removes
# all remaining imported target names (there shouldn't be any left anyway).
set(_CCSR_NEW_REQ_LIBS )
foreach(_CURRENT_LIB ${_CCSR_REQ_LIBS})
if(TARGET "${_CURRENT_LIB}")
get_target_property(_importedConfigs "${_CURRENT_LIB}" IMPORTED_CONFIGURATIONS)
else()
set(_importedConfigs "")
endif()
if (NOT _importedConfigs)
list(APPEND _CCSR_NEW_REQ_LIBS "${_CURRENT_LIB}" )
# message(STATUS "final: appending ${_CURRENT_LIB}")
else ()
# message(STATUS "final: skipping ${_CURRENT_LIB}")
endif ()
endforeach()
# message(STATUS "setting -${_RESULT}- to -${_CCSR_NEW_REQ_LIBS}-")
set(${_RESULT} "${_CCSR_NEW_REQ_LIBS}" PARENT_SCOPE)
endfunction()
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