42 lines
1.3 KiB
CMake
42 lines
1.3 KiB
CMake
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PROJECT (ExternalOBJ)
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# Build the external object file.
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TRY_COMPILE(EXTERNAL_OBJECT_BUILT
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${ExternalOBJ_BINARY_DIR}/Object
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${ExternalOBJ_SOURCE_DIR}/Object
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Object
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external
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OUTPUT_VARIABLE OUTPUT
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)
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SET(EXTERNAL_OBJECT_NAME "external_object${CMAKE_CXX_OUTPUT_EXTENSION}")
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IF(EXTERNAL_OBJECT_BUILT)
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MESSAGE(
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"Building ${EXTERNAL_OBJECT_NAME} succeeded with the following output:\n"
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"[${OUTPUT}]"
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)
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ELSE(EXTERNAL_OBJECT_BUILT)
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MESSAGE(FATAL_ERROR
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"Building ${EXTERNAL_OBJECT_NAME} failed with the following output:\n"
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"[${OUTPUT}]"
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)
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ENDIF(EXTERNAL_OBJECT_BUILT)
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# Find the external object file.
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SET(BASE ${ExternalOBJ_BINARY_DIR}/Object)
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SET(EXTERNAL_OBJECT)
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FOREACH(dir external.dir . ${CMAKE_CONFIGURATION_TYPES})
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IF(NOT EXTERNAL_OBJECT)
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IF(EXISTS ${BASE}/${dir}/${EXTERNAL_OBJECT_NAME})
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SET(EXTERNAL_OBJECT ${BASE}/${dir}/${EXTERNAL_OBJECT_NAME})
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ENDIF(EXISTS ${BASE}/${dir}/${EXTERNAL_OBJECT_NAME})
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ENDIF(NOT EXTERNAL_OBJECT)
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ENDFOREACH(dir)
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IF(EXTERNAL_OBJECT)
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MESSAGE("Found \"${EXTERNAL_OBJECT}\".")
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ELSE(EXTERNAL_OBJECT)
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MESSAGE(FATAL_ERROR "Could not find ${EXTERNAL_OBJECT_NAME}.")
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ENDIF(EXTERNAL_OBJECT)
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# Build an executable using the external object file.
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ADD_EXECUTABLE(executable executable.cxx ${EXTERNAL_OBJECT})
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