Index: trunk/psModules/src/detrend/pmDark.c
===================================================================
--- trunk/psModules/src/detrend/pmDark.c	(revision 17025)
+++ trunk/psModules/src/detrend/pmDark.c	(revision 17026)
@@ -177,4 +177,5 @@
         for (int i = 0; i < numInputs; i++) {
             psVector *val = values->data[i];
+            (void) val; // avoid unused variable message
             for (int j = 0; j < numOrdinates; j++) {
                 psTrace("psModules.detrend", 9, "Image %d, ordinate %d: %f\n", i, j, val->data.F32[j]);