$NetBSD: patch-aa,v 1.13 2014/08/03 17:33:34 spz Exp $

--- configure.orig	2014-05-17 08:24:49.000000000 +0000
+++ configure
@@ -13018,7 +13018,7 @@ else
   RANLIB="$ac_cv_prog_RANLIB"
 fi
 
-for ac_prog in 'bison -y' byacc
+for ac_prog in 'bison -y' byacc yacc
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2