[POWERPC][XEN] Fix gdbstub build break.

Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>

diff --git a/xen/common/gdbstub.c b/xen/common/gdbstub.c
index 54a81680a7631fc67d742b56ca480083404cfa65..de3ba1f40f1de1af57333cfc6b01a6c6270976a5 100644 (file)
--- a/xen/common/gdbstub.c
+++ b/xen/common/gdbstub.c
@@ -42,6 +42,7 @@
 #include <xen/init.h>
 #include <xen/smp.h>
 #include <xen/console.h>
+#include <xen/errno.h>
 
 /* Printk isn't particularly safe just after we've trapped to the
    debugger. so avoid it. */