From: Matthew Fernandez <matthew.fernandez@gmail.com>
Date: Thu, 27 Aug 2020 00:32:14 +0000 (-0700)
Subject: drop compatibility with Yacc, Bison < 3 in lib/cgraph/grammar.y
X-Git-Tag: 2.46.0~20^2^2~99^2~5
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=4a13c9598ad3d950a251e5d3e5be8d05c59c6214;p=graphviz

drop compatibility with Yacc, Bison < 3 in lib/cgraph/grammar.y

This will allow us to use api.prefix with brace syntax in an upcoming commit.
Bison 3.0 was released in July 2013 [0], so this seems an acceptable base line
requirement from now on.

  [0]: http://savannah.gnu.org/forum/forum.php?forum_id=7663
---

diff --git a/lib/cgraph/grammar.y b/lib/cgraph/grammar.y
index c08967720..737b147fe 100644
--- a/lib/cgraph/grammar.y
+++ b/lib/cgraph/grammar.y
@@ -11,6 +11,8 @@
  * Contributors: See CVS logs. Details at http://www.graphviz.org/
  *************************************************************************/
 
+%require "3.0"
+
 %{
 
 #include <stdio.h>  /* SAFE */