diff -up isdn4k-utils-CVS-2010-05-01-patched/vbox/Makefile.in.vboxgetty-config isdn4k-utils-CVS-2010-05-01-patched/vbox/Makefile.in
--- isdn4k-utils-CVS-2010-05-01-patched/vbox/Makefile.in.vboxgetty-config	2009-10-20 11:07:28.000000000 +0200
+++ isdn4k-utils-CVS-2010-05-01-patched/vbox/Makefile.in	2014-06-18 16:15:47.000000000 +0200
@@ -53,7 +53,7 @@ INSTALL_DIRS	= @INSTALL@ -d
 #----------------------------------------------------------------------------#
 
 CC		= @CC@
-VBOX_CFLAGS	= @CFLAGS@ @LINK_NCURSES_INCL@ @LINK_TCL_INCL@
+VBOX_CFLAGS	= -DUSE_INTERP_RESULT -DUSE_INTERP_ERRORLINE @CFLAGS@ @LINK_NCURSES_INCL@ @LINK_TCL_INCL@
 LDFLAGS		= @LDFLAGS@
 
 #----------------------------------------------------------------------------#