From 765d73d6be377ac5971366726fe1d4f47195cdb7 Mon Sep 17 00:00:00 2001
From: Francis Dupont <fdupont@isc.org>
Date: Wed, 6 Mar 2019 19:36:35 +0100
Subject: [PATCH] [486-no-longer-use-bison-is-yacc-emulation-mode] Changed from
 AC_PROG_YACC

---
 configure.ac | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index b0390257fb..ec7d01f42c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1381,7 +1381,8 @@ AC_PROG_LEX
 
 # Check if bison is available. Bison is not needed for building Kea sources,
 # unless you want to regenerate grammars
-AC_PROG_YACC
+AC_PATH_PROG(YACC, bison)
+AC_SUBST(YACC)
 
 if test "x$enable_generate_parser" != "xno"; then
 
-- 
2.47.2