********> bugfix 
cd $AMBERHOME
patch -p0 -N < bugfix

Author: Daniel R. Roe
Date: 2010-10-07
Programs: ptraj
Description: Fixes issue where output of cluster trajectory could cause a 
             segfault when trajectory became too large (filestack was not
             properly cleared).

-----------------------------------------------------------------------------
--- AmberTools/src/ptraj/cluster.c	2010-10-07 17:02:51.928036297 -0400
+++ AmberTools/src/ptraj/cluster.c	2010-10-07 17:03:48.046160351 -0400
@@ -4089,7 +4089,7 @@
 		     *  to avoid crashing out if we hit the OS-level file-size limit: 
 		     */
 		  FileNumber[ClusterIndex] = FileNumber[ClusterIndex] + 1;
-		  fclose(OutputFiles[ClusterIndex]);
+		  safe_fclose(OutputFiles[ClusterIndex]);
 		  FirstOutputFlag[ClusterIndex] = 1;
 		  FirstFlag = 1;      
 	        }
---------------------------------------------------------------------------
Workarounds: none