• Runtimes

  • Generic c++ runtime linker error

    английский

  • Sscott__

    • Сообщение #1
    • Это сообщение на английский

    After creating a spine.lib and linking my engine to it, it seems to have trouble finding the RTTI_DECL macro

    error LNK2001: unresolved external symbol "public: static class spine::RTTI const spine::MeshAttachment::rtti" (?rtti@MeshAttachment@spine@@2VRTTI@2@B)

    In order to create the lib file I modified this line in dll.h:

    #define SP_API __declspec(dllexport)

    Did I miss something when doing this, has anybody seen this issue before?

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    • Sscott__

      • Сообщение #2
      • Изменено
      • Это сообщение на английский

      • Mario

      • Сообщение #3
      • Это сообщение на английский

      How are you compiling the .lib file with VC++?

      • Sscott__

        • Сообщение #4
        • Это сообщение на английский

        Yes, and the link libraries are defined with cmake

        My problem was #define SP_API __declspec(dllexport) defines SP_API only as an export, so when my engine imports the DLL, it's actually exporting it instead. To fix this I needed to define SP_API as:

        ifdef spine_EXPORTS

        define SP_API DLLEXPORT

        else

        define SP_API DLLIMPORT

        endif

        This way it will export the functions when compiled, but import when my library imports them.