MantisBT - CMake
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IDProjectCategoryView StatusDate SubmittedLast Update
0014447CMakeCMakepublic2013-09-28 14:412016-06-10 14:31
ReporterVeniamin Gvozdikov 
Assigned ToKitware Robot 
PriorityhighSeverityfeatureReproducibilityalways
StatusclosedResolutionmoved 
PlatformOSOS Version
Product Version 
Target VersionFixed in Version 
Summary0014447: Support $<TARGET_OBJECT:obj> as DEPENDS in add_custom_command
DescriptionHello,

I had a strange trouble with add DEPENDS in add_custom_command by $<TARGET_OBJECTS:obj> and I hacked that with set(cjson_obj_2 ${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/cjson_objs.dir/lua_cjson.c.o) in real path to object. This is bad way for depends, please add support in new version.

set(cjson_obj)
 
add_library(cjson_objs OBJECT lua_cjson.c strbuf.c ${FPCONV_SOURCES})
set_target_properties(cjson_objs PROPERTIES POSITION_INDEPENDENT_CODE ON)
set(cjson_obj ${cjson_obj} $<TARGET_OBJECTS:cjson_objs>)
 
if(ENABLE_DTRACE AND DTRACE)
    message(STATUS "DTrace found and enabled")
    add_definitions(-DENABLE_DTRACE)
    set(D_FILE ${PROJECT_SOURCE_DIR}/cjson_dtrace)
    execute_process(
       COMMAND ${DTRACE} -h -s ${D_FILE}.d -o ${D_FILE}.h
    )
    if(${CMAKE_SYSTEM_NAME} STREQUAL "FreeBSD")
        set(cjson_obj_2 ${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/cjson_objs.dir/lua_cjson.c.o)
        set(dtrace_obj ${CMAKE_CURRENT_BINARY_DIR}/dtrace.o)
        add_custom_command(OUTPUT ${dtrace_obj}
            COMMAND ${DTRACE} -G -s ${D_FILE}.d -o ${dtrace_obj} ${cjson_obj_2}
            DEPENDS ${cjson_obj_2}
        )
        set_source_files_properties(${dtrace_obj}
            PROPERTIES
            EXTERNAL_OBJECT true
            GENERATED true
        )
        set(cjson_obj ${cjson_obj} ${dtrace_obj})
        unset(cjson_obj_2)
        unset(dtrace_obj)
        unset(D_FILE)
    endif()
endif()
 
add_library(cjson MODULE ${cjson_obj})
set_target_properties(cjson PROPERTIES PREFIX "")
target_link_libraries(cjson ${_MODULE_LINK})
Steps To ReproduceTry my example of cmake code.
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Issue History
Date ModifiedUsernameFieldChange
2013-09-28 14:41Veniamin GvozdikovNew Issue
2016-06-10 14:29Kitware RobotNote Added: 0042379
2016-06-10 14:29Kitware RobotStatusnew => resolved
2016-06-10 14:29Kitware RobotResolutionopen => moved
2016-06-10 14:29Kitware RobotAssigned To => Kitware Robot
2016-06-10 14:31Kitware RobotStatusresolved => closed

Notes
(0042379)
Kitware Robot   
2016-06-10 14:29   
Resolving issue as `moved`.

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