[ruby-core:78946] [Ruby trunk Bug#12071] Gem installation fails with 2.3.0 on Cygwin

Issue #12071 has been updated by Hedge Hog.


Yes this issue is present in 2.2.6.  
When I checked the logs I saw the same symptoms reported here.  
When I checked the 2.2.6 source code on my local machine it appeared that change in revision 53868 was also required there in the 2.2.6 source:

https://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/ext/extmk.rb?r1=53448&r2=53868&pathrev=53868
 
Unfortunately I am on leave and don't have access to my windows machine.

----------------------------------------
Bug #12071: Gem installation fails with 2.3.0 on Cygwin
https://bugs.ruby-lang.org/issues/12071#change-62365

* Author: Benjamin Gueroult
* Status: Feedback
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: ruby 2.3.0p0 (2015-12-25 revision 53290) [x86_64-cygwin]
* Backport: 2.1: DONTNEED, 2.2: REQUIRED, 2.3: DONE
----------------------------------------
Hello,

I would like report an issue when installing gem on Cygwin with ruby 2.3.0.

Backtrace is:

~~~
/home/USER/.rbenv/versions/2.3.0/lib/ruby/site_ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require': cannot load such file -- win32/resolv (LoadError)
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/site_ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/2.3.0/resolv.rb:971:in `default_config_hash'
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/2.3.0/resolv.rb:989:in `block in lazy_initialize'
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/2.3.0/resolv.rb:982:in `synchronize'
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/2.3.0/resolv.rb:982:in `lazy_initialize'
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/2.3.0/resolv.rb:360:in `block in lazy_initialize'
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/2.3.0/resolv.rb:358:in `synchronize'
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/2.3.0/resolv.rb:358:in `lazy_initialize'
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/2.3.0/resolv.rb:518:in `fetch_resource'
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/2.3.0/resolv.rb:512:in `each_resource'
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/2.3.0/resolv.rb:493:in `getresource'
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/site_ruby/2.3.0/rubygems/remote_fetcher.rb:99:in `api_endpoint'
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/site_ruby/2.3.0/rubygems/source.rb:47:in `api_uri'
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/site_ruby/2.3.0/rubygems/source.rb:183:in `load_specs'
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/site_ruby/2.3.0/rubygems/spec_fetcher.rb:263:in `tuples_for'
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/site_ruby/2.3.0/rubygems/spec_fetcher.rb:238:in `block in available_specs'
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/site_ruby/2.3.0/rubygems/source_list.rb:98:in `each'
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/site_ruby/2.3.0/rubygems/source_list.rb:98:in `each_source'
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/site_ruby/2.3.0/rubygems/spec_fetcher.rb:223:in `available_specs'
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/site_ruby/2.3.0/rubygems/spec_fetcher.rb:103:in `search_for_dependency'
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/site_ruby/2.3.0/rubygems/commands/update_command.rb:118:in `fetch_remote_gems'
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/site_ruby/2.3.0/rubygems/commands/update_command.rb:140:in `highest_remote_version'
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/site_ruby/2.3.0/rubygems/commands/update_command.rb:268:in `block in which_to_update'
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/site_ruby/2.3.0/rubygems/commands/update_command.rb:264:in `each'
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/site_ruby/2.3.0/rubygems/commands/update_command.rb:264:in `which_to_update'
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/site_ruby/2.3.0/rubygems/commands/update_command.rb:97:in `execute'
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/site_ruby/2.3.0/rubygems/command.rb:308:in `invoke_with_build_args'
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/site_ruby/2.3.0/rubygems/command_manager.rb:169:in `process_args'
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/site_ruby/2.3.0/rubygems/command_manager.rb:139:in `run'
        from /home/USER/.rbenv/versions/2.3.0/lib/ruby/site_ruby/2.3.0/rubygems/gem_runner.rb:55:in `run'
        from /home/USER/.rbenv/versions/2.3.0/bin/gem:21:in `<main>'
~~~

I fixed the issue with the attached patch, but I'm not sure if this is the correct way...


---Files--------------------------------
cygwin.patch (789 Bytes)
fiddle.mkmf.log (15.3 KB)
config.log (990 KB)
ruby-build.20160218233708.3584.log (108 KB)


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