Add missing _ptr & _srcptr alias.

m-deque.h

@@ -97,6 +97,8 @@
     size_t                  default_size;				\
     size_t                  count;					\
   } deque_t[1];								\
+  typedef struct M_C(name, _s) *M_C(name, _ptr);                        \
+  typedef const struct M_C(name, _s) *M_C(name, _srcptr);               \
 		 							\
   typedef struct M_C(name, _it_s) {					\
     node_t *node;							\