text: /*
   * This header defines macro to hide class from shared library on Unixes
   */
  
  #ifndef __HIDDEN_CLASS_H__
  #   define __HIDDEN_CLASS_H__
  #   ifdef WIN32
  #       define HIDDEN_CLASS
  #   else
  #       define HIDDEN_CLASS __attribute__ ((visibility ("hidden")))
  #   endif
  #endif
  