From 434fae97f2401b50f55ac6fe7390e0b0f933c6ec Mon Sep 17 00:00:00 2001
From: Nuno Lopes <nlopess@php.net>
Date: Sat, 16 Mar 2019 12:22:44 -0400
Subject: [PATCH] check for bison binary, not yacc this fixes compilation with
 recent bison

---
 acinclude.m4 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/acinclude.m4 b/acinclude.m4
index cea6db87ff..1684c74a92 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -1842,7 +1842,7 @@ dnl
 dnl Search for bison and check it's version
 dnl
 AC_DEFUN([PHP_PROG_BISON], [
-  AC_PROG_YACC
+  AC_CHECK_PROG(YACC, bison, bison)
   LIBZEND_BISON_CHECK
   PHP_SUBST(YACC)
 ])
-- 
2.40.0