- added support for the gui debugger with sdl on Windows (required separate thread)

- enh_dbg: fixed defined-but-not-used warnings
- siminterface: renamed 'wx_debug_gui' to 'bx_debug_gui' and updated comments
- TODO: remove the wx debugger and use the enhanced gui debugger instead

bochs/configure

@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Id: configure.in 11244 2012-06-30 12:43:55Z vruppert .
+# From configure.in Id: configure.in 11250 2012-07-01 14:37:13Z vruppert .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.68.
 #
@@ -23720,7 +23720,7 @@ ENH_DBG_OBJS=""
 if test "$gui_debugger" = 1; then
   if test "$needs_gtk2" = 1; then
      ENH_DBG_OBJS="gtk_enh_dbg_osdep.o"
-  elif test "$with_win32" = yes; then
+  elif test "$DEFAULT_GUI" = win32; then
      ENH_DBG_OBJS="win32_enh_dbg_osdep.o"
   fi
 fi