diff -r 082fa4bd403d -r 117247018b54 src/HOL/IsaMakefile
--- a/src/HOL/IsaMakefile	Tue Feb 16 15:16:33 2010 +0100
+++ b/src/HOL/IsaMakefile	Tue Feb 16 15:25:36 2010 +0100
@@ -1226,7 +1226,8 @@
   SMT/Tools/smt_solver.ML SMT/Tools/cvc3_solver.ML                      \
   SMT/Tools/yices_solver.ML SMT/Tools/z3_proof_terms.ML                 \
   SMT/Tools/z3_proof_rules.ML SMT/Tools/z3_proof.ML                     \
-  SMT/Tools/z3_model.ML SMT/Tools/z3_interface.ML SMT/Tools/z3_solver.ML
+  SMT/Tools/z3_model.ML SMT/Tools/z3_interface.ML			\
+  SMT/Tools/z3_solver.ML $(SRC)/Tools/Cache_IO/cache_io.ML
 	@cd SMT; $(ISABELLE_TOOL) usedir -b -g true $(OUT)/HOL-Word HOL-SMT