--- a/common/autoconf/spec.gmk.in	Tue Oct 27 13:48:21 2015 +0100
+++ b/common/autoconf/spec.gmk.in	Tue Oct 27 17:51:36 2015 +0100
@@ -245,6 +245,7 @@
 # Enable sjavac support = use a javac server,
 # multi core javac compilation and dependency tracking.
 ENABLE_SJAVAC:=@ENABLE_SJAVAC@
+ENABLE_JAVAC_SERVER:=@ENABLE_JAVAC_SERVER@
 # Store sjavac server synchronization files here, and
 # the sjavac server log files.
 SJAVAC_SERVER_DIR=$(MAKESUPPORT_OUTPUTDIR)/javacservers