x11/wayland: fix screensaver suspension via D-Bus b08b1bde introduced a subtle bug. Despite not using D-Bus types directly, the code used the SDL_USE_LIBDBUS definition set by SDL_dbus.h to conditionally compile calls SDL_DBus_ScreensaverTickle() and SDL_DBus_ScreensaverInhibit(). As a result, it still compiled without SDL_dbus.h included, but screensaver suspension silently failed to work. The D-Bus stuff could probably use some tweaks to be harder to accidentally break, but for now just restore the header includes.
diff --git a/src/video/wayland/SDL_waylandvideo.h b/src/video/wayland/SDL_waylandvideo.h
index 56964d4..60336b6 100644
--- a/src/video/wayland/SDL_waylandvideo.h
+++ b/src/video/wayland/SDL_waylandvideo.h
@@ -29,6 +29,7 @@
#include "wayland-util.h"
#include "../SDL_sysvideo.h"
+#include "../../core/linux/SDL_dbus.h"
#include "../../core/linux/SDL_ime.h"
struct xkb_context;
diff --git a/src/video/x11/SDL_x11video.h b/src/video/x11/SDL_x11video.h
index 8f5c983..7281e11 100644
--- a/src/video/x11/SDL_x11video.h
+++ b/src/video/x11/SDL_x11video.h
@@ -56,6 +56,7 @@
#include <X11/extensions/xf86vmode.h>
#endif
+#include "../../core/linux/SDL_dbus.h"
#include "../../core/linux/SDL_ime.h"
#include "SDL_x11dyn.h"