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9a6ff95072
For VS2010 if a precompiled .obj file was the output of a custom commad, it was used as part of the build. If it was not, then VS did not use it as part of the build. This commit updates the test to check for this issue, and fixes the problem. This fixes bugs #0011891 and
62 lines
2.0 KiB
CMake
62 lines
2.0 KiB
CMake
cmake_minimum_required (VERSION 2.6)
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PROJECT (ExternalOBJ)
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IF(APPLE)
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# set _CMAKE_OSX_MACHINE to umame -m
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EXEC_PROGRAM(uname ARGS -m OUTPUT_VARIABLE _CMAKE_OSX_MACHINE)
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# check for Power PC and change to ppc
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IF("${_CMAKE_OSX_MACHINE}" MATCHES "Power")
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SET(_CMAKE_OSX_MACHINE ppc)
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ENDIF("${_CMAKE_OSX_MACHINE}" MATCHES "Power")
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SET(CMAKE_OSX_ARCHITECTURES ${_CMAKE_OSX_MACHINE})
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ENDIF(APPLE)
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# Build the external object file.
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TRY_COMPILE(EXTERNAL_OBJECT_BUILT
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${ExternalOBJ_BINARY_DIR}/Object
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${ExternalOBJ_SOURCE_DIR}/Object
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Object
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external
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OUTPUT_VARIABLE OUTPUT
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)
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IF(EXTERNAL_OBJECT_BUILT)
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MESSAGE(
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"Building external_object.cxx succeeded with the following output:\n"
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"[${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.cxx 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(DIR ${ExternalOBJ_BINARY_DIR}/Object)
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FILE(GLOB_RECURSE EXTERNAL_OBJECT
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"${DIR}/external_object*${CMAKE_CXX_OUTPUT_EXTENSION}")
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IF(EXTERNAL_OBJECT)
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LIST (GET EXTERNAL_OBJECT 0 EXTERNAL_OBJECT)
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MESSAGE("Found \"${EXTERNAL_OBJECT}\".")
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ELSE(EXTERNAL_OBJECT)
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MESSAGE(FATAL_ERROR "Could not find external object.")
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ENDIF(EXTERNAL_OBJECT)
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# Test creation of external objects by custom commands.
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SET(CUSTOM_OBJECT
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${CMAKE_CURRENT_BINARY_DIR}/custom_object${CMAKE_C_OUTPUT_EXTENSION})
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ADD_CUSTOM_COMMAND(
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OUTPUT ${CUSTOM_OBJECT}
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COMMAND ${CMAKE_COMMAND} -E copy ${EXTERNAL_OBJECT} ${CUSTOM_OBJECT}
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DEPENDS ${EXTERNAL_OBJECT}
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)
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message("${EXTERNAL_OBJECT}")
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# Build an executable using the external object file.
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ADD_EXECUTABLE(ExternalOBJ executable.cxx ${CUSTOM_OBJECT})
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# A bug showed up in VS2010 where an object file that was
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# part of a custom commad output worked, but ones that were
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# not didn't work. So, repeat the executable using the object
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# directly and not from the output of the copy.
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ADD_EXECUTABLE(ExternalOBJ2 executable.cxx ${EXTERNAL_OBJECT})
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