From 36dd77f63e4347903b418b7104a6a64540c54ae9 Mon Sep 17 00:00:00 2001
From: Holger Vogt <holger.vogt@uni-due.de>
Date: Sun, 10 Oct 2021 11:40:53 +0200
Subject: [PATCH] if step size in optran command is set to 0, optran is
 deselected.

---
 src/spicelib/analysis/optran.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/spicelib/analysis/optran.c b/src/spicelib/analysis/optran.c
index 3e42b2d74..9ac95a25c 100644
--- a/src/spicelib/analysis/optran.c
+++ b/src/spicelib/analysis/optran.c
@@ -166,6 +166,10 @@ void com_optran(wordlist* wl) {
         fprintf(stderr, "Error: Ramp time larger than final time.\n");
         goto bugquit;
     }
+    /* optran deselected by setting opstepsize to 0 */
+    if (opstepsize == 0)
+        nooptran = TRUE;
+
     dataset = TRUE;
     if (errno == 0)
         errno = saved;