CREATE FUNCTION int44in(cstring)
   RETURNS city_budget
   AS '@libdir@/regress@DLSUFFIX@'
   LANGUAGE C STRICT;
ERROR:  type "city_budget" does not exist
CREATE FUNCTION int44out(city_budget)
   RETURNS cstring
   AS '@libdir@/regress@DLSUFFIX@'
   LANGUAGE C STRICT;
ERROR:  type city_budget does not exist
   
CREATE TYPE city_budget (
   internallength = 16,
   input = int44in,
   output = int44out,
   element = int4,
   category = 'x',   -- just to verify the system will take it
   preferred = true  -- ditto
);
ERROR:  function int44in(cstring) does not exist