If XSPICE is not selected, still send CKTspDump(ckt, freq, spPlot),

but without ipc (spPlot instead of undefined acPlot)

src/spicelib/analysis/span.c

@@ -894,7 +894,7 @@ SPan(CKTcircuit* ckt, int restart)
 
         /* gtri - modify - wbk - 12/19/90 - Send IPC stuff */
 #else
-        error = CKTspDump(ckt, freq, acPlot, job->SPdoNoise));
+        error = CKTspDump(ckt, freq, spPlot, job->SPdoNoise));
 #endif
         if (error) {
             UPDATE_STATS(DOING_AC);