qemu-gdb-ipv4.patch

--- gdbstub.c.orig	2013-09-02 16:50:10.024684380 +0300
+++ gdbstub.c	2013-09-02 16:50:29.981350239 +0300
@@ -1685,7 +1685,7 @@
         if (strstart(device, "tcp:", NULL)) {
             /* enforce required TCP attributes */
             snprintf(gdbstub_device_name, sizeof(gdbstub_device_name),
-                     "%s,nowait,nodelay,server", device);
+                     "%s,nowait,nodelay,server,ipv4", device);
             device = gdbstub_device_name;
         }
 #ifndef _WIN32