Index: trunk/ppMerge/src/Makefile.am
===================================================================
--- trunk/ppMerge/src/Makefile.am	(revision 18757)
+++ trunk/ppMerge/src/Makefile.am	(revision 18758)
@@ -11,7 +11,9 @@
 	ppMergeScaleZero.c	\
 	ppMergeLoop.c		\
-	ppMergeThreadLauncher.c	\
 	ppMergeFileGroup.c	\
 	ppMergeMask.c
+
+#	ppMergeLoop_Threaded.c  
+#	ppMergeThreadLauncher.c	
 
 
Index: trunk/ppMerge/src/ppMerge.h
===================================================================
--- trunk/ppMerge/src/ppMerge.h	(revision 18757)
+++ trunk/ppMerge/src/ppMerge.h	(revision 18758)
@@ -15,4 +15,5 @@
 #define TIMERNAME "ppMerge"             // Name for timer
 #define PPMERGE_RECIPE "PPMERGE"        // Recipe name
+#define THREADED 0
 
 // Type of frame to merge
Index: trunk/ppMerge/src/ppMergeArguments.c
===================================================================
--- trunk/ppMerge/src/ppMergeArguments.c	(revision 18757)
+++ trunk/ppMerge/src/ppMergeArguments.c	(revision 18758)
@@ -171,4 +171,5 @@
     }
 
+# if (THREADED)
     // Number of threads
     if ((argnum = psArgumentGet(argc, argv, "-threads"))) {
@@ -182,4 +183,5 @@
 	psThreadPoolInit (nThreads, &ppMergeThreadLauncher);
     }
+# endif
 
     if (argc == 1 || !psArgumentParse(arguments, &argc, argv) || argc != 3) {