CMAKE- Object library target may not link to anything












1















I am getting an error with the cMakeLists.txt file below. The error is




Object library target "cm" may not link to anything.




The issue is with line target_link_libraries(cm corebase)



This builds OK on linux but I this error is occurring on windows.



I'd appreciate any ideas?



file(GLOB base
"*.cpp"
)

file (GLOB model
"*.cpp"
)

file(GLOB logger
"*.cpp"
)

file(GLOB pass
"*.cpp"
)

file(GLOB compiler
"src/compiler/*"
)

add_subdirectory(meta)

if (MSVC)
add_library(cm OBJECT ${compiler} ${pass})
add_library(corebase OBJECT ${base} ${logger})
add_library(model OBJECT ${model})
target_link_libraries(cm corebase)
add_dependencies(cm generate-comp-api)
add_dependencies(model generate-comp-api)
else()
add_library(cm SHARED ${base} ${logger} ${pass} ${compiler})
add_library(corebase SHARED ${base} ${logger})
add_library(model SHARED ${model})
target_link_libraries(cm corebase metamodel)
add_dependencies(cm generate-comp-api)
add_dependencies(model generate-comp-api)
add_subdirectory(python/api)
add_subdirectory(tests)
add_subdirectory(contrib/googletest)
#add_subdirectory(recordings)
endif(MSVC)









share|improve this question





























    1















    I am getting an error with the cMakeLists.txt file below. The error is




    Object library target "cm" may not link to anything.




    The issue is with line target_link_libraries(cm corebase)



    This builds OK on linux but I this error is occurring on windows.



    I'd appreciate any ideas?



    file(GLOB base
    "*.cpp"
    )

    file (GLOB model
    "*.cpp"
    )

    file(GLOB logger
    "*.cpp"
    )

    file(GLOB pass
    "*.cpp"
    )

    file(GLOB compiler
    "src/compiler/*"
    )

    add_subdirectory(meta)

    if (MSVC)
    add_library(cm OBJECT ${compiler} ${pass})
    add_library(corebase OBJECT ${base} ${logger})
    add_library(model OBJECT ${model})
    target_link_libraries(cm corebase)
    add_dependencies(cm generate-comp-api)
    add_dependencies(model generate-comp-api)
    else()
    add_library(cm SHARED ${base} ${logger} ${pass} ${compiler})
    add_library(corebase SHARED ${base} ${logger})
    add_library(model SHARED ${model})
    target_link_libraries(cm corebase metamodel)
    add_dependencies(cm generate-comp-api)
    add_dependencies(model generate-comp-api)
    add_subdirectory(python/api)
    add_subdirectory(tests)
    add_subdirectory(contrib/googletest)
    #add_subdirectory(recordings)
    endif(MSVC)









    share|improve this question



























      1












      1








      1








      I am getting an error with the cMakeLists.txt file below. The error is




      Object library target "cm" may not link to anything.




      The issue is with line target_link_libraries(cm corebase)



      This builds OK on linux but I this error is occurring on windows.



      I'd appreciate any ideas?



      file(GLOB base
      "*.cpp"
      )

      file (GLOB model
      "*.cpp"
      )

      file(GLOB logger
      "*.cpp"
      )

      file(GLOB pass
      "*.cpp"
      )

      file(GLOB compiler
      "src/compiler/*"
      )

      add_subdirectory(meta)

      if (MSVC)
      add_library(cm OBJECT ${compiler} ${pass})
      add_library(corebase OBJECT ${base} ${logger})
      add_library(model OBJECT ${model})
      target_link_libraries(cm corebase)
      add_dependencies(cm generate-comp-api)
      add_dependencies(model generate-comp-api)
      else()
      add_library(cm SHARED ${base} ${logger} ${pass} ${compiler})
      add_library(corebase SHARED ${base} ${logger})
      add_library(model SHARED ${model})
      target_link_libraries(cm corebase metamodel)
      add_dependencies(cm generate-comp-api)
      add_dependencies(model generate-comp-api)
      add_subdirectory(python/api)
      add_subdirectory(tests)
      add_subdirectory(contrib/googletest)
      #add_subdirectory(recordings)
      endif(MSVC)









      share|improve this question
















      I am getting an error with the cMakeLists.txt file below. The error is




      Object library target "cm" may not link to anything.




      The issue is with line target_link_libraries(cm corebase)



      This builds OK on linux but I this error is occurring on windows.



      I'd appreciate any ideas?



      file(GLOB base
      "*.cpp"
      )

      file (GLOB model
      "*.cpp"
      )

      file(GLOB logger
      "*.cpp"
      )

      file(GLOB pass
      "*.cpp"
      )

      file(GLOB compiler
      "src/compiler/*"
      )

      add_subdirectory(meta)

      if (MSVC)
      add_library(cm OBJECT ${compiler} ${pass})
      add_library(corebase OBJECT ${base} ${logger})
      add_library(model OBJECT ${model})
      target_link_libraries(cm corebase)
      add_dependencies(cm generate-comp-api)
      add_dependencies(model generate-comp-api)
      else()
      add_library(cm SHARED ${base} ${logger} ${pass} ${compiler})
      add_library(corebase SHARED ${base} ${logger})
      add_library(model SHARED ${model})
      target_link_libraries(cm corebase metamodel)
      add_dependencies(cm generate-comp-api)
      add_dependencies(model generate-comp-api)
      add_subdirectory(python/api)
      add_subdirectory(tests)
      add_subdirectory(contrib/googletest)
      #add_subdirectory(recordings)
      endif(MSVC)






      build cmake






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      edited Nov 21 '18 at 16:48







      catha catriona

















      asked Nov 21 '18 at 16:29









      catha catrionacatha catriona

      62




      62
























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          The error message is correct: OBJECT libraries shouldn't link to anything. Instead, one need to use object files, corresponded to the library, as source files for executable/other library:



          # Create an OBJECT library
          add_library(corebase OBJECT ${base} ${logger})
          # And use its objects for other library.
          add_library(cm OBJECT ${compiler} ${pass} $<TARGET_OBJECTS:corebase>)





          share|improve this answer























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            oldest

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            active

            oldest

            votes









            1














            The error message is correct: OBJECT libraries shouldn't link to anything. Instead, one need to use object files, corresponded to the library, as source files for executable/other library:



            # Create an OBJECT library
            add_library(corebase OBJECT ${base} ${logger})
            # And use its objects for other library.
            add_library(cm OBJECT ${compiler} ${pass} $<TARGET_OBJECTS:corebase>)





            share|improve this answer




























              1














              The error message is correct: OBJECT libraries shouldn't link to anything. Instead, one need to use object files, corresponded to the library, as source files for executable/other library:



              # Create an OBJECT library
              add_library(corebase OBJECT ${base} ${logger})
              # And use its objects for other library.
              add_library(cm OBJECT ${compiler} ${pass} $<TARGET_OBJECTS:corebase>)





              share|improve this answer


























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                1








                1







                The error message is correct: OBJECT libraries shouldn't link to anything. Instead, one need to use object files, corresponded to the library, as source files for executable/other library:



                # Create an OBJECT library
                add_library(corebase OBJECT ${base} ${logger})
                # And use its objects for other library.
                add_library(cm OBJECT ${compiler} ${pass} $<TARGET_OBJECTS:corebase>)





                share|improve this answer













                The error message is correct: OBJECT libraries shouldn't link to anything. Instead, one need to use object files, corresponded to the library, as source files for executable/other library:



                # Create an OBJECT library
                add_library(corebase OBJECT ${base} ${logger})
                # And use its objects for other library.
                add_library(cm OBJECT ${compiler} ${pass} $<TARGET_OBJECTS:corebase>)






                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 21 '18 at 22:02









                TsyvarevTsyvarev

                27.3k42964




                27.3k42964
































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