From 0071ad856946e63605a2585c53d58ab78bee2b31 Mon Sep 17 00:00:00 2001
From: Holger Vogt <holger.vogt@uni-due.de>
Date: Fri, 6 Sep 2019 22:48:23 +0200
Subject: [PATCH] If a subcircuit is defined more than once, only read the
 first one, rename the others und thus discard them.

---
 src/frontend/inpcom.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/frontend/inpcom.c b/src/frontend/inpcom.c
index c2c58dae2..e20f7987a 100644
--- a/src/frontend/inpcom.c
+++ b/src/frontend/inpcom.c
@@ -8179,8 +8179,9 @@ static void add_subckt(struct nscope *scope, struct card *subckt_line)
     char *n = skip_ws(skip_non_ws(subckt_line->line));
     char *name = copy_substring(n, skip_non_ws(n));
     if (find_subckt_1(scope, name)) {
-        fprintf(stderr, "redefinition of .subckt %s\n", name);
-        controlled_exit(1);
+        fprintf(stderr, "Warning: redefinition of .subckt %s, ignored\n", name);
+        /* rename the redefined subcircuit */
+        *n = '_';
     }
     struct card_assoc *entry = TMALLOC(struct card_assoc, 1);
     entry->name = name;