fixed
(exited abnormally when ~/isabelle/etc/settings not present)

--- a/lib/scripts/getsettings	Mon Jun 06 08:18:43 2005 +0200
+++ b/lib/scripts/getsettings	Mon Jun 06 09:28:28 2005 +0200
@@ -48,7 +48,7 @@
 [ "$ISABELLE_HOME" -ef "$ISABELLE_HOME_USER" ] && \
   { echo >&2 "### ISABELLE_HOME and ISABELLE_HOME_USER should not be the same directory!"; }
 [ -z "$ISABELLE_IGNORE_USER_SETTINGS" -a -f "$ISABELLE_HOME_USER/etc/settings" ] && \
-  source "$ISABELLE_HOME_USER/etc/settings" || exit 2
+  { source "$ISABELLE_HOME_USER/etc/settings" || exit 2; }
 
 #append ML system identifier to paths
 if [ -z "$ML_PLATFORM" ]; then