text: #ifndef __GDKCONFIG_H__
  #define __GDKCONFIG_H__
  
  #if !defined (__GDK_H_INSIDE__) && !defined (GTK_COMPILATION)
  #error "Only <gdk/gdk.h> can be included directly."
  #endif
  
  #include <glib.h>
  
  G_BEGIN_DECLS
  
  
  #define GDK_WINDOWING_X11
  #undef GDK_WINDOWING_BROADWAY
  #undef GDK_WINDOWING_MACOS
  #define GDK_WINDOWING_WAYLAND
  #undef GDK_WINDOWING_WIN32
  
  #undef GDK_RENDERING_VULKAN
  
  G_END_DECLS
  
  #endif  /* __GDKCONFIG_H__ */
  