diff --git a/config/balance-defs.make b/config/balance-defs.make
index cd3f6e08372564f2167bc2d996f6a7ef666be66d..904455f012b9cbd5ee20194cda7c61e6ac0b9637 100644
--- a/config/balance-defs.make
+++ b/config/balance-defs.make
@@ -1,5 +1,5 @@
 #
-# $Id: balance-defs.make,v 1.6 1991/10/30 23:33:55 ceder Exp $
+# $Id: balance-defs.make,v 1.7 1991/10/30 23:42:43 ceder Exp $
 # Copyright (C) 1991  Lysator Academic Computer Association.
 #
 # This file is part of the LysKOM server.
@@ -22,7 +22,7 @@
 #
 # Please mail bug reports to bug-lyskom@lysator.liu.se. 
 #
-# $Id: balance-defs.make,v 1.6 1991/10/30 23:33:55 ceder Exp $
+# $Id: balance-defs.make,v 1.7 1991/10/30 23:42:43 ceder Exp $
 # This file is included by all Makefiles in the LysKOM hierarchy.
 # It gives default values for all variables that is normally used. 
 # TOPDIR and SCRIPTDIR must be set before this file is included.
@@ -37,7 +37,7 @@ RM = /usr/gnu/bin/rm -vf
 RANLIB = ranlib
 TOUCHLIB = ranlib
 SYMLINK = ln -s
-BISON = yacc
+YACC = bison -d
 
 INCLUDEDIR	= $(TOPDIR)/include
 LIBDIR		= $(TOPDIR)/lib
diff --git a/config/sun4os4-defs.make b/config/sun4os4-defs.make
index bcf63b6eafe37a5f2c08ee074e3654183e631a51..a5f688436b471acff3f657fd865a544d29b610a0 100644
--- a/config/sun4os4-defs.make
+++ b/config/sun4os4-defs.make
@@ -1,5 +1,5 @@
 #
-# $Id: sun4os4-defs.make,v 1.7 1991/10/30 23:33:48 ceder Exp $
+# $Id: sun4os4-defs.make,v 1.8 1991/10/30 23:42:38 ceder Exp $
 # Copyright (C) 1991  Lysator Academic Computer Association.
 #
 # This file is part of the LysKOM server.
@@ -22,7 +22,7 @@
 #
 # Please mail bug reports to bug-lyskom@lysator.liu.se. 
 #
-# $Id: sun4os4-defs.make,v 1.7 1991/10/30 23:33:48 ceder Exp $
+# $Id: sun4os4-defs.make,v 1.8 1991/10/30 23:42:38 ceder Exp $
 # This file is included by all Makefiles in the LysKOM hierarchy.
 # It gives default values for all variables that is normally used. 
 # TOPDIR and SCRIPTDIR must be set before this file is included.
@@ -38,7 +38,7 @@ RM = /usr/gnu/bin/rm -vf
 RANLIB = ranlib
 TOUCHLIB = ranlib -t
 SYMLINK = ln -s
-YACC = bison
+YACC = bison -d
 
 INCLUDEDIR	= $(TOPDIR)/include
 LIBDIR		= $(TOPDIR)/lib