Index: trunk/ppStack/src/ppStackArguments.c
===================================================================
--- trunk/ppStack/src/ppStackArguments.c	(revision 15848)
+++ trunk/ppStack/src/ppStackArguments.c	(revision 16015)
@@ -102,5 +102,5 @@
 {
     assert(config);
-    bool mdok;                          // Status of MD lookup
+    // bool mdok;                          // Status of MD lookup
 
     pmConfigFileSetsMD(config->arguments, &argc, argv, "PPSTACK.SOURCES", "-sources", NULL);
@@ -128,8 +128,8 @@
     const char *stampsName = psMetadataLookupStr(NULL, arguments, "-stamps"); // Name of stamps file
     psMetadataAddStr(config->arguments, PS_LIST_TAIL, "STAMPS", 0, "Stamps file", stampsName);
-    if (!stampsName && !psMetadataLookupPtr(&mdok, config->arguments, "PPSTACK.SOURCES")) {
-        psError(PS_ERR_BAD_PARAMETER_VALUE, true, "One of -sources or -stamps must be specified.");
-        goto ERROR;
-    }
+    // if (!stampsName && !psMetadataLookupPtr(&mdok, config->arguments, "PPSTACK.SOURCES")) {
+    // psError(PS_ERR_BAD_PARAMETER_VALUE, true, "One of -sources or -stamps must be specified.");
+    //goto ERROR;
+    // }
 
     unsigned int numBad = 0;                     // Number of bad lines