Index: trunk/ippTools/src/difftool.c
===================================================================
--- trunk/ippTools/src/difftool.c	(revision 25840)
+++ trunk/ippTools/src/difftool.c	(revision 25851)
@@ -2099,4 +2099,8 @@
   }
 
+  if (!pxExportVersion(config, f)) {
+    psError(PS_ERR_UNKNOWN, false, "failed to write dbversion output file");
+    return false;
+  }
   psMetadata *where = psMetadataAlloc();
   PXOPT_COPY_S64(config->args, where, "-diff_id", "diff_id", "==");
@@ -2190,7 +2194,13 @@
   psMetadata *input = psMetadataConfigRead (NULL, &nFail, infile, false);
 
-  fprintf (stdout, "---- input ----\n");
+#ifdef notdef
+  fprintf (stderr, "---- input ----\n");
   psMetadataPrint (stderr, input, 1);
-
+#endif
+
+  if (!pxCheckImportVersion(config, input)) {
+      psError(PS_ERR_UNKNOWN, false, "pxCheckImportVersion failed");
+      return false;
+  }
   psMetadataItem *item = psMetadataLookup (input, "diffRun");
   psAssert (item, "entry not in input?");