extern int guestfs_kill_subprocess (guestfs_h *handle);
extern int guestfs_add_drive (guestfs_h *handle, const char *filename);
extern int guestfs_add_cdrom (guestfs_h *handle, const char *filename);
+extern int guestfs_add_drive_ro (guestfs_h *handle, const char *filename);
extern int guestfs_config (guestfs_h *handle, const char *qemuparam, const char *qemuvalue);
extern int guestfs_set_qemu (guestfs_h *handle, const char *qemu);
extern const char *guestfs_get_qemu (guestfs_h *handle);