https://git.ruby-lang.org/ruby.git/commit/?id=1ee1684a4a

From 1ee1684a4a3edb26b5aa32acc967b9ef26284d42 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Mon, 4 May 2020 18:10:02 +0900
Subject: Bison 3.5.91 now defaults parse.error to "simple"


diff --git a/parse.y b/parse.y
index dc9c375..e57cc11 100644
--- a/parse.y
+++ b/parse.y
@@ -968,6 +968,7 @@ static int looking_at_eol_p(struct parser_params *p); https://github.com/ruby/ruby/blob/trunk/parse.y#L968
 
 %expect 0
 %define api.pure
+%define parse.error verbose
 %lex-param {struct parser_params *p}
 %parse-param {struct parser_params *p}
 %initial-action
diff --git a/tool/pure_parser.rb b/tool/pure_parser.rb
index 9ab6638..59e8fb7 100755
--- a/tool/pure_parser.rb
+++ b/tool/pure_parser.rb
@@ -18,3 +18,4 @@ BEGIN { https://github.com/ruby/ruby/blob/trunk/tool/pure_parser.rb#L18
   ARGV.push(file)
 }
 $_.sub!(/^%define\s+api\.pure/, '%pure-parser')
+$_.sub!(/^%define\s+.*/, '')
-- 
cgit v0.10.2


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