Btukfyl

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)

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>)