diff -up isdn4k-utils-3.27_20151118/ipppd/main.c.than isdn4k-utils-3.27_20151118/ipppd/main.c
--- isdn4k-utils-3.27_20151118/ipppd/main.c.than	2015-11-18 21:13:04.575352833 +0100
+++ isdn4k-utils-3.27_20151118/ipppd/main.c	2015-11-18 21:39:36.637385767 +0100
@@ -1297,12 +1297,13 @@ int vfmtmsg(char *buf,int buflen,char *f
         break;
     case 'r':
         f = va_arg(args, char *);
-        a = va_arg(args, va_list);
+        va_copy(a, args);
 #if defined(__alpha__) || defined(__sh__) || defined ( __arm__)       /* always do this? */
 	n = fmtmsg(buf, buflen + 1, f, a);
 #else
 	n = vfmtmsg(buf, buflen + 1, f, a);
 #endif
+        va_end(a);
         buf += n;
         buflen -= n;
         continue;
diff -up isdn4k-utils-3.27_20151118/isdnlog/isdnrep/isdnrep.c.than isdn4k-utils-3.27_20151118/isdnlog/isdnrep/isdnrep.c
diff -up isdn4k-utils-3.27_20151118/isdnlog/tools/rate.c.than isdn4k-utils-3.27_20151118/isdnlog/tools/rate.c
--- isdn4k-utils-3.27_20151118/isdnlog/tools/rate.c.than	2015-11-18 21:10:11.454980332 +0100
+++ isdn4k-utils-3.27_20151118/isdnlog/tools/rate.c	2015-11-18 21:10:53.089588917 +0100
@@ -1134,11 +1134,11 @@ char   *prefix2provider_variant(int pref
   return s;
 }
 
-inline int getNProvider( void ) {
+extern inline int getNProvider( void ) {
   return nProvider;
 }
 
-inline int isProviderBooked( int i) {
+extern inline int isProviderBooked( int i) {
   return Provider[i].booked;
 }
 
diff -up isdn4k-utils-3.27_20151118/isdnlog/tools/rate.h.than isdn4k-utils-3.27_20151118/isdnlog/tools/rate.h
diff -up isdn4k-utils-3.27_20151118/vbox3/vboxgetty/tclscript.c.than isdn4k-utils-3.27_20151118/vbox3/vboxgetty/tclscript.c
--- isdn4k-utils-3.27_20151118/vbox3/vboxgetty/tclscript.c.than	2015-11-18 21:45:31.798046888 +0100
+++ isdn4k-utils-3.27_20151118/vbox3/vboxgetty/tclscript.c	2015-11-18 21:45:44.743925189 +0100
@@ -4,6 +4,8 @@
 ** Copyright 1996-1998 Michael 'Ghandi' Herold <michael@abadonna.mayn.de>
 */
 
+#define USE_INTERP_ERRORLINE
+
 #ifdef HAVE_CONFIG_H
 #  include "../config.h"
 #endif
diff -up isdn4k-utils-3.27_20151118/vbox/Makefile.in.than isdn4k-utils-3.27_20151118/vbox/Makefile.in
--- isdn4k-utils-3.27_20151118/vbox/Makefile.in.than	2015-11-18 21:51:41.090575154 +0100
+++ isdn4k-utils-3.27_20151118/vbox/Makefile.in	2015-11-18 21:52:12.312281654 +0100
@@ -53,7 +53,7 @@ INSTALL_DIRS	= @INSTALL@ -d
 #----------------------------------------------------------------------------#
 
 CC		= @CC@
-VBOX_CFLAGS	= @CFLAGS@ @LINK_NCURSES_INCL@ @LINK_TCL_INCL@ -Wall -fno-strict-aliasing -fpie
+VBOX_CFLAGS	= -DUSE_INTERP_RESULT -DUSE_INTERP_ERRORLINE @CFLAGS@ @LINK_NCURSES_INCL@ @LINK_TCL_INCL@ -Wall -fno-strict-aliasing -fpie
 LDFLAGS		= @LDFLAGS@ -pie
 
 #----------------------------------------------------------------------------#
diff -up isdn4k-utils-3.27_20151118/vbox/src/script.c.than isdn4k-utils-3.27_20151118/vbox/src/script.c
--- isdn4k-utils-3.27_20151118/vbox/src/script.c.than	2015-11-18 21:40:49.833697651 +0100
+++ isdn4k-utils-3.27_20151118/vbox/src/script.c	2015-11-18 21:45:17.911177444 +0100
@@ -4,6 +4,9 @@
 ** Copyright (C) 1996, 1997 Michael 'Ghandi' Herold
 */
 
+#define USE_INTERP_RESULT
+#define USE_INTERP_ERRORLINE
+
 #include "config.h"
 
 #if TIME_WITH_SYS_TIME