--- a/src/Pure/ROOT Mon Mar 16 11:07:56 2015 +0100
+++ b/src/Pure/ROOT Mon Mar 16 11:30:54 2015 +0100
@@ -172,6 +172,7 @@
"PIDE/execution.ML"
"PIDE/markup.ML"
"PIDE/protocol.ML"
+ "PIDE/protocol_message.ML"
"PIDE/query_operation.ML"
"PIDE/resources.ML"
"PIDE/session.ML"