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-rw-r--r--Modules/CMakeExpandImportedTargets.cmake129
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diff --git a/Modules/CMakeExpandImportedTargets.cmake b/Modules/CMakeExpandImportedTargets.cmake
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+++ b/Modules/CMakeExpandImportedTargets.cmake
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+# 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}.
+# This macro is used by all Check*.cmake files which use
+# TRY_COMPILE() or TRY_RUN() and support CMAKE_REQUIRED_LIBRARIES , so that
+# these checks support imported targets in CMAKE_REQUIRED_LIBRARIES:
+# 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(CMakeParseArguments)
+
+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 ${_CCSR_REQ_LIBS})
+ get_target_property(_importedConfigs "${_CURRENT_LIB}" IMPORTED_CONFIGURATIONS)
+ 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 ("${_CCSR_LOOP_COUNTER}" LESS 1)
+# message(STATUS "********* aborting loop, counter : ${_CCSR_LOOP_COUNTER}")
+ endif ("${_CCSR_LOOP_COUNTER}" LESS 100)
+
+ # 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("${_configIndexToUse}" EQUAL -1)
+ set(_configIndexToUse 0)
+ endif("${_configIndexToUse}" EQUAL -1)
+ 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(_currentLinkInterfaceLib)
+ endforeach(_currentLinkInterfaceLib "${_linkInterfaceLibs}")
+ endif(_linkInterfaceLibs)
+ else(_importedConfigs)
+ # "Normal" libraries are just used as they are.
+ list(APPEND _CCSR_NEW_REQ_LIBS "${_CURRENT_LIB}" )
+# message(STATUS "Appending lib directly: ${_CURRENT_LIB}")
+ endif(_importedConfigs)
+ endforeach(_CURRENT_LIB ${_CCSR_REQ_LIBS})
+
+ set(_CCSR_REQ_LIBS ${_CCSR_NEW_REQ_LIBS} )
+ endwhile(_CHECK_FOR_IMPORTED_TARGETS)
+
+ # 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 ${_CCSR_REQ_LIBS})
+ get_target_property(_importedConfigs "${_CURRENT_LIB}" IMPORTED_CONFIGURATIONS)
+ if (NOT _importedConfigs)
+ list(APPEND _CCSR_NEW_REQ_LIBS "${_CURRENT_LIB}" )
+# message(STATUS "final: appending ${_CURRENT_LIB}")
+ else (NOT _importedConfigs)
+# message(STATUS "final: skipping ${_CURRENT_LIB}")
+ endif (NOT _importedConfigs)
+ endforeach(_CURRENT_LIB ${_CCSR_REQ_LIBS})
+# message(STATUS "setting -${_RESULT}- to -${_CCSR_NEW_REQ_LIBS}-")
+ set(${_RESULT} "${_CCSR_NEW_REQ_LIBS}" PARENT_SCOPE)
+
+endfunction()