Issue #7897 has been updated by drbrain (Eric Hodel).

Status changed from Assigned to Closed
Assignee changed from nobu (Nobuyoshi Nakada) to drbrain (Eric Hodel)
% Done changed from 50 to 100

Then RubyGems breaks mkmf.rb's Makefile and Murata-san's patch fixes it.

Thank you for checking!
----------------------------------------
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-36758

Author: mrkn (Kenta Murata)
Status: Closed
Priority: Urgent
Assignee: drbrain (Eric Hodel)
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.



-- 
http://bugs.ruby-lang.org/