Index: /issm/trunk/src/m/utils/OS/clearall.m
===================================================================
--- /issm/trunk/src/m/utils/OS/clearall.m	(revision 6852)
+++ /issm/trunk/src/m/utils/OS/clearall.m	(revision 6853)
@@ -4,6 +4,8 @@
 Lvariables=evalin('base','who');
 
-%remove ISSM_TIER from this list
+%remove ISSM_TIER and ISSM_DIR from this list
 Lvariables=Lvariables(find(~strcmp(Lvariables,'ISSM_TIER')));
+Lvariables=Lvariables(find(~strcmp(Lvariables,'ISSM_DIR')));
+Lvariables=Lvariables(find(~strcmp(Lvariables,'PETSC_VERSION')));
 
 %clear all