From: Eric Wong <normalperson@...>
Date: 2014-09-18T19:19:45+00:00
Subject: [ruby-core:65112] Re: [ruby-trunk - Bug #10260] [Open] Cannot install "thin" gem

sawadatsuyoshi@gmail.com wrote:
> checking for rb_thread_blocking_region()... no

This is a deprecated API, maybe the latest EventMachine or trunk fixes.
If not, report the bug to EventMachine authors
(but AFAIK, EM is somewhat abandoned)

> em.cpp: In member function ���void EventMachine_t::_RunEpollOnce()���:
> em.cpp:574:37: error: ���rb_thread_select��� was not declared in this scope
>    EmSelect (0, NULL, NULL, NULL, &tv);

It looks like EM falls back to using an even older API
(rb_thread_select) because it cannot find rb_thread_blocking_region