From bc823323ae589b1ee7933b428d23bbee4f90804b Mon Sep 17 00:00:00 2001
From: Billy Brumley <bbrumley@gmail.com>
Date: Sun, 7 Aug 2022 19:34:55 +0300
Subject: [PATCH] autoconf yacc bug workaround

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

diff --git a/configure.ac b/configure.ac
index 691aaaf..16e4fdd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -17,6 +17,8 @@ LDFLAGS="$LDFLAGS -L/usr/local/lib"
 AC_PROG_CC
 AM_PROG_CC_C_O
 AC_PROG_INSTALL
+AC_CHECK_PROG(YACC,[yacc],[yacc],[no])
+test "$YACC" == "no" && AC_MSG_ERROR("yacc not found")
 AC_PROG_YACC
 
 test "$sysconfdir" = '${prefix}/etc' && sysconfdir=/etc