Issue #9631 has been updated by Usaku NAKAMURA.

Related to Bug #9578: °∆Function°« undeclared in readline.c added

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Backport #9631: Backport readline-6.3 support.
https://bugs.ruby-lang.org/issues/9631#change-46381

* Author: Hiroshi SHIBATA
* Status: Open
* Priority: Normal
* Assignee: 
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Please backport to support readline-6.3 or later. Related revision are r45225, r45240 and 45243.



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