From: Eric Wong <normalperson@...>
Date: 2018-05-22T04:06:03+00:00
Subject: [ruby-core:87218] Re: [Ruby trunk Bug#14780] In function ‘tr_trans’: warning: unused variable ‘old’

duerst@it.aoyama.ac.jp wrote:
> * ruby -v: ruby 2.6.0dev (2018-05-21 trunk 63475) [x86_64-cygwin]

Can you try r63487?  It uses the MAYBE_UNUSED macro which I hope
works for your platform.  Thanks.

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