--- a/src/core_env.sml	Tue Jul 29 12:30:04 2008 -0400
+++ b/src/core_env.sml	Tue Jul 29 13:16:21 2008 -0400
@@ -119,9 +119,17 @@
         NONE => raise UnboundNamed n
       | SOME x => x
 
-fun declBinds env (d, _) =
+fun declBinds env (d, loc) =
     case d of
         DCon (x, n, k, c) => pushCNamed env x n k (SOME c)
+      | DDatatype (x, n, xncs) =>
+        let
+            val env = pushCNamed env x n (KType, loc) NONE
+        in
+            foldl (fn ((x', n', NONE), env) => pushENamed env x' n' (CNamed n, loc) NONE ""
+                    | ((x', n', SOME t), env) => pushENamed env x' n' (TFun (t, (CNamed n, loc)), loc) NONE "")
+            env xncs
+        end
       | DVal (x, n, t, e, s) => pushENamed env x n t (SOME e) s
       | DValRec vis => foldl (fn ((x, n, t, e, s), env) => pushENamed env x n t NONE s) env vis
       | DExport _ => env