From fe8126865afea1553443f131ad28adead8071ab8 Mon Sep 17 00:00:00 2001
From: Holger Vogt <holger.vogt@uni-due.de>
Date: Sat, 7 Jul 2018 14:29:44 +0200
Subject: [PATCH] Add CFLAGS -fvisibility=hidden also when ngspice executable
 is made under LINUX: becomes effective when code models are made. Thus there
 is no longer any difference between code models made during compiling shared
 ngspice or standard ngspice.

---
 configure.ac | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/configure.ac b/configure.ac
index 2352e5d68..824e35a67 100644
--- a/configure.ac
+++ b/configure.ac
@@ -934,6 +934,9 @@ if test "x$enable_xspice" = xyes; then
         * )
             AC_DEFINE([IPC_UNIX_SOCKETS], [1], [Client-Server via socket.])
             XSPICEDLLIBS="-ldl"
+            if test -z "$has_shared_module"; then
+                CFLAGS="$CFLAGS -fvisibility=hidden"
+            fi
             ;;
     esac
     XSPICEINIT=""