added ML-Systems/thread_dummy.ML;

--- a/src/Pure/IsaMakefile	Sat Sep 06 14:02:36 2008 +0200
+++ b/src/Pure/IsaMakefile	Sun Sep 07 17:46:37 2008 +0200
@@ -55,9 +55,10 @@
   ML-Systems/polyml.ML ML-Systems/polyml_old_compiler4.ML		\
   ML-Systems/polyml_old_compiler5.ML ML-Systems/proper_int.ML		\
   ML-Systems/smlnj.ML ML-Systems/system_shell.ML			\
-  ML-Systems/time_limit.ML ML-Systems/universal.ML ML/ml_context.ML	\
-  ML/ml_antiquote.ML ML/ml_lex.ML ML/ml_parse.ML ML/ml_syntax.ML	\
-  ML/ml_thms.ML Proof/extraction.ML Proof/proof_rewrite_rules.ML	\
+  ML-Systems/time_limit.ML ML-Systems/thread_dummy.ML			\
+  ML-Systems/universal.ML ML/ml_context.ML ML/ml_antiquote.ML		\
+  ML/ml_lex.ML ML/ml_parse.ML ML/ml_syntax.ML ML/ml_thms.ML		\
+  Proof/extraction.ML Proof/proof_rewrite_rules.ML			\
   Proof/proof_syntax.ML Proof/proofchecker.ML Proof/reconstruct.ML	\
   ProofGeneral/ROOT.ML ProofGeneral/pgip.ML ProofGeneral/pgip_input.ML	\
   ProofGeneral/pgip_isabelle.ML ProofGeneral/pgip_markup.ML		\
@@ -102,7 +103,8 @@
   ML-Systems/polyml.ML ML-Systems/polyml_old_compiler4.ML		\
   ML-Systems/polyml_old_compiler5.ML ML-Systems/proper_int.ML		\
   ML-Systems/smlnj.ML ML-Systems/system_shell.ML			\
-  ML-Systems/time_limit.ML ML-Systems/universal.ML
+  ML-Systems/thread_dummy.ML ML-Systems/time_limit.ML			\
+  ML-Systems/universal.ML
 	@./mk -r