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diff --git a/cil/src/ext/pta/steensgaard.mli b/cil/src/ext/pta/steensgaard.mli
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+(*
+ *
+ * Copyright (c) 2001-2002, 
+ *  John Kodumal        <jkodumal@eecs.berkeley.edu>
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. The names of the contributors may not be used to endorse or promote
+ * products derived from this software without specific prior written
+ * permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+ * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *)
+
+(***********************************************************************)
+(*                                                                     *)
+(*                                                                     *)
+(* This file is currently unused by CIL.  It is included in the        *)
+(*   distribution for reference only.                                  *)
+(*                                                                     *)
+(*                                                                     *)
+(***********************************************************************)
+
+type lvalue
+type tau
+val debug : bool ref
+val debug_constraints : bool ref
+val print_constraints : bool ref
+val no_flow : bool ref
+val no_sub : bool ref
+val analyze_mono : bool ref
+val solve_online : bool ref
+val solve_constraints : unit -> unit
+val rvalue : lvalue -> tau
+val deref : tau -> lvalue
+val join : tau -> tau -> tau
+val join_inits : tau list -> tau
+val address : lvalue -> tau
+val instantiate : lvalue -> int -> lvalue
+val assign : lvalue -> tau -> unit
+val apply : tau -> tau list -> tau
+val make_function :  string -> lvalue list -> tau -> tau
+val make_lvalue : bool -> string -> lvalue
+val bottom : unit -> tau
+val return : tau -> tau -> unit
+val make_fresh : string -> tau
+val points_to : lvalue -> string list    
+val string_of_lvalue : lvalue -> string
+val global_lvalue : lvalue -> bool
+val alias_query : bool -> lvalue list -> int * int