Issue #7909 has been reported by drbrain (Eric Hodel).

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Backport #7909: Backport r39366 - Create extension install directory before installing
https://bugs.ruby-lang.org/issues/7909

Author: drbrain (Eric Hodel)
Status: Assigned
Priority: Normal
Assignee: mame (Yusuke Endoh)
Category: 
Target version: 


This fixed #7897.

The change is here:

https://bugs.ruby-lang.org/projects/ruby-trunk/repository/revisions/39366

This may be a work-around to a regression in mkmf.rb, though.  See #7897 for discussion.


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