From 23f6c6d9b9cd3a1326da01438295b0216fad6ffb Mon Sep 17 00:00:00 2001
From: "Yves-Gael Cheny ( irc hurdman_begin )" <hurd@r0b0t.fr>
Date: Fri, 6 Feb 2015 00:06:06 +0100
Subject: Check that yacc is provided by bison

* configure.ac: Check that yacc --version contains bison.
---
 configure.ac | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/configure.ac b/configure.ac
index efd542a..37bf432 100644
--- a/configure.ac
+++ b/configure.ac
@@ -25,6 +25,12 @@ dnl Checks for programs.
 AC_PROG_CC
 AC_PROG_CPP
 AC_PROG_YACC
+
+yacc_is_bison=`yacc --version | head -n 1 | cut '-d ' -f1`
+[if [ x"$yacc_is_bison" != x"bison" ]; then ]
+	AC_MSG_ERROR([yacc is not provided by bison, check your alternative conf or your packages])
+[fi]
+
 AM_PROG_LEX
 AC_PROG_AWK
 AC_PROG_INSTALL
-- 
cgit v1.2.3