Index: trunk/ippTools/src/laptoolConfig.c
===================================================================
--- trunk/ippTools/src/laptoolConfig.c	(revision 31528)
+++ trunk/ippTools/src/laptoolConfig.c	(revision 32422)
@@ -132,4 +132,14 @@
   ADD_OPT(Bool,updateexpArgs, "-inactive",                    "set this exposure to active", 0);
 
+  // -diffcheck
+  psMetadata *diffcheckArgs = psMetadataAlloc();
+  ADD_OPT(S64, diffcheckArgs, "-lap_id",                      "search by lap run ID", 0);
+  ADD_OPT(S64, diffcheckArgs, "-exp_id",                      "search by exposure ID", 0);
+  ADD_OPT(S64, diffcheckArgs, "-chip_id",                     "search by chip ID", 0);
+  ADD_OPT(S64, diffcheckArgs, "-warp_id",                     "search by warp ID", 0);
+  ADD_OPT(S64, diffcheckArgs, "-seq_id",                      "search by lap sequence ID", 0);
+  ADD_OPT(Str, diffcheckArgs, "-skycell_id",                  "search by skycell ID", 0);
+  ADD_OPT(Bool, diffcheckArgs, "-simple",                     "use simple output format", 0);
+  
   // -inactiveexp
   psMetadata *inactiveexpArgs = psMetadataAlloc();
@@ -152,4 +162,5 @@
   PXOPT_ADD_MODE("-stacks",                  "", LAPTOOL_MODE_STACKS,           stacksArgs);
   PXOPT_ADD_MODE("-updateexp",               "", LAPTOOL_MODE_UPDATEEXP,        updateexpArgs);
+  PXOPT_ADD_MODE("-diffcheck",               "", LAPTOOL_MODE_DIFFCHECK,        diffcheckArgs);
   PXOPT_ADD_MODE("-inactiveexp",             "", LAPTOOL_MODE_INACTIVEEXP,      inactiveexpArgs);