New debug scheme with explicit debug channels declaration.

diff --git a/tsx11/ts_xresource.c b/tsx11/ts_xresource.c
index ba5c542..17841c6 100644
--- a/tsx11/ts_xresource.c
+++ b/tsx11/ts_xresource.c
@@ -14,6 +14,8 @@
 #include "debug.h"
 #include "x11drv.h"
 
+DEFAULT_DEBUG_CHANNEL(x11)
+
 XrmQuark  TSXrmUniqueQuark(void)
 {
   XrmQuark  r;