https://git.ruby-lang.org/ruby.git/commit/?id=b971bad49b

From b971bad49b95d4c1f68bb2242d4267355f1cd497 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Mon, 4 May 2020 13:35:38 +0900
Subject: Bison 3.59.1 folds yydestruct function header


diff --git a/tool/ytab.sed b/tool/ytab.sed
index ba7566a..95a9b3e 100755
--- a/tool/ytab.sed
+++ b/tool/ytab.sed
@@ -14,6 +14,7 @@ a\ https://github.com/ruby/ruby/blob/trunk/tool/ytab.sed#L14
 }
 /^yydestruct.*yymsg/,/{/{
   /^yydestruct/{
+    /,$/N
     /[, *]p)/!{
       H
       s/^/ruby_parser_&/
-- 
cgit v0.10.2


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