tweak cc control
diff --git a/releng.control/ant_med_priority.sh b/releng.control/ant_med_priority.sh
new file mode 100644
index 0000000..8a112b5
--- /dev/null
+++ b/releng.control/ant_med_priority.sh
@@ -0,0 +1,24 @@
+#!/bin/sh
+
+# remember to leave no slashes on commonVariations in source command,
+# so that users path is used to find it (first). But, path on
+# commonComputedVariables means we expect to execute only our
+# version
+
+if [ -z $BUILD_INITIALIZED ]
+then
+# if releng_control not set, we assume we are already in releng_control directory
+   if [ -z $RELENG_CONTROL ]
+   then
+        RELENG_CONROL=`pwd`
+   fi
+   pushd .
+   cd ${RELENG_CONTROL}
+   source commonVariations.shsource
+   source ${RELENG_CONTROL}/commonComputedVariables.shsource
+   popd
+fi
+
+
+echo "Running ant at priority +3"
+exec nice --adjustment 3 "${RELENG_CONTROL}/ant.sh" "$@"