diff -r eedea6f0b37e -r 549969a7f582 Isabelle
--- a/Isabelle	Wed Jan 06 18:22:43 2010 +0100
+++ b/Isabelle	Wed Jan 06 20:00:22 2010 +0100
@@ -16,12 +16,14 @@
 source "$ISABELLE_HOME/lib/scripts/getsettings" || exit 2
 
 unset ISABELLE_SETTINGS_PRESENT
+unset ISABELLE_SITE_SETTINGS_PRESENT
 
 
 ## main
 
+[ -e "$ISABELLE_HOME/Admin/build" ] && "$ISABELLE_HOME/Admin/build" jars
+
 CLASSPATH="$(jvmpath "$CLASSPATH")"
-
 exec "$ISABELLE_JAVA" \
   "-Disabelle.home=$(jvmpath "$ISABELLE_HOME")" \
   -jar "$(jvmpath "$ISABELLE_HOME/lib/classes/isabelle-scala.jar")" "$@"