Origin: Alpine Linux

--- a/hw/9pfs/9p.c
+++ b/hw/9pfs/9p.c
@@ -16,6 +16,7 @@
  *
  */
 
+#include <linux/limits.h>
 #include "qemu/osdep.h"
 #include <glib/gprintf.h>
 #include "hw/virtio/virtio.h"