Issue #7897 has been updated by nobu (Nobuyoshi Nakada).


It caused by r38864, which removes timestamp files in dependency rules.
Now mkmf uses those files to fix parallel make issues.
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Bug #7897: rubygems 2.0 has an incompatibility about installation of extension libraries if gem package does not contain lib directory
https://bugs.ruby-lang.org/issues/7897#change-36754

Author: mrkn (Kenta Murata)
Status: Assigned
Priority: Urgent
Assignee: nobu (Nobuyoshi Nakada)
Category: lib
Target version: 2.0.0
ruby -v: ruby 2.0.0dev (2013-02-08 trunk 39161) [x86_64-darwin11.4.2]


Hi,

rubygems 2.0 has an incompatibility about installation of extension libraries.

If a gem package does not contain lib directory,
an extension library file is copied as a file named "lib".

You can reproduce this problem by installing msgpack version 0.4.7.



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