Make is for blitting between two values of the same monomorphic type.
Sequence : sig ... endval blit : (t, t) Base__.Blit_intf.blitval blito : (t, t) Base__.Blit_intf.blitoval unsafe_blit : (t, t) Base__.Blit_intf.blitval sub : (t, t) Base__.Blit_intf.subval subo : (t, t) Base__.Blit_intf.subo