Missing symbol when creating a ressource in a shared library, the `dll` case

[thelfer]

Dear Qt users and developpers,
I am trying to add a ressource in a dll.
I am using cmake as build system, but I don't thing that this is related to the issue.
I am adding the ressource in a shared library.

qt_add_resources(TFELPlotResources_RCC
  TFELPlotResources.qrc)
add_library(my_library SHARED
  ${TFELPlotResources_RCC})

Later, I initialize the ressources in my main and link with the previous library. The problem is that the symbol qInitResources_TFELPlotResources is not exported, causing a link error.

On LiNuX, I can specify that all the symbols of the files listed in the TFELPlotResources_RCC variable shall be exported (-fvisibility=default ). This works as expected.

So on, I did not find a equivalent trick for Windows. Does anyone know how I shall proceed ?

Best regards,

Thomas Helfer

[thelfer]

@thelfer I have found a solution. In juste created a function initRessources in my dll, as follows:

static void TFELPlotInitRessources(){
  Q_INIT_RESOURCE(TFELPlotResources);
}

namespace tfel{

  namespace plot{

    void initRessources(){
      ::TFELPlotInitRessources();
    } // end of initRessources
    
  } // end of namespace plot

} // end of namespace tfel

Note that the Q_INIT_RESOURCE(TFELPlotResources) must be in a function in the global namespace for reasons that I did not investiguate. I now have full control on the visibility of the ìnitRessoures function.
I hope that this can be helpfull to other Qt users.
Best regards,
Thomas Helfer