From 4e42a93ba1c334949ec33822eb1381067a3e16af Mon Sep 17 00:00:00 2001
From: Francesco Lannutti <nicolati@fastwebnet.it>
Date: Tue, 21 Jun 2016 15:03:21 +0200
Subject: [PATCH] Avoid crashing during the Sensitivity Analysis in KLU,
 stating that it isn't supported

---
 src/spicelib/analysis/cktsens.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/spicelib/analysis/cktsens.c b/src/spicelib/analysis/cktsens.c
index 0e830054d..da42b1ec3 100644
--- a/src/spicelib/analysis/cktsens.c
+++ b/src/spicelib/analysis/cktsens.c
@@ -62,6 +62,15 @@ static double inc_freq(double freq, int type, double step_size);
 static int	error;
 int sens_sens(CKTcircuit *ckt, int restart)
 {
+
+#ifdef KLU
+    if (ckt->CKTkluMODE)
+    {
+        fprintf (stderr, "\n\n\tThe Sensitivity Analysis is not supported in KLU environment\n\tPlease add '.options sparse' in you netlist\n\n\n") ;
+        return OK ;
+    } else {
+#endif
+
 	SENS_AN	*job = (SENS_AN *) ckt->CKTcurJob;
 
 	static int	size;
@@ -626,6 +635,11 @@ int sens_sens(CKTcircuit *ckt, int restart)
 #endif
 
 	return OK;
+
+#ifdef KLU
+    }
+#endif
+
 }
 
 double