From 415d94bee0df7775727deae70f15f833f2a1a45a Mon Sep 17 00:00:00 2001
From: Holger Vogt <holger.vogt@uni-due.de>
Date: Fri, 29 Mar 2024 17:27:43 +0100
Subject: [PATCH] Bug 665: enable compiling the code models with link time
 optimization. Fix provided by Giles Atkinson. Still the build of ngspice
 fails (tested with Cygwin) at the linking stage.

---
 src/xspice/icm/dlmain.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/xspice/icm/dlmain.c b/src/xspice/icm/dlmain.c
index b86839e34..8c005cf56 100644
--- a/src/xspice/icm/dlmain.c
+++ b/src/xspice/icm/dlmain.c
@@ -13,6 +13,7 @@
 #include  <stdlib.h>
 #include  <string.h>
 
+#include "ngspice/config.h"
 #include "ngspice/cpextern.h"
 #include "ngspice/devdefs.h"
 #include "ngspice/dstring.h"