Cannot build json native extension

[dmp1ce]

I installed rubygems 2.0 with these instructions. I then tried to install vagrant and got the following output:

~> gem install vagrant

Building native extensions.  This could take a while...
ERROR:  Error installing vagrant:
    ERROR: Failed to build gem native extension.

    /home/david/.rvm/rubies/ruby-2.0.0-rc1/bin/ruby extconf.rb
/home/david/.rvm/gems/ruby-2.0.0-rc1/gems/json-1.5.4/Gemfile:5:in `load': undefined method `gemspec' for #<Gem::RequestSet::GemDepedencyAPI:0x00000002909870> (NoMethodError)
    from /home/david/.rvm/rubies/ruby-2.0.0-rc1/lib/ruby/site_ruby/2.0.0/rubygems/request_set.rb:155:in `instance_eval'
    from /home/david/.rvm/rubies/ruby-2.0.0-rc1/lib/ruby/site_ruby/2.0.0/rubygems/request_set.rb:155:in `load'
    from /home/david/.rvm/rubies/ruby-2.0.0-rc1/lib/ruby/site_ruby/2.0.0/rubygems/request_set.rb:54:in `load_gemdeps'
    from /home/david/.rvm/rubies/ruby-2.0.0-rc1/lib/ruby/site_ruby/2.0.0/rubygems.rb:232:in `detect_gemdeps'
    from /home/david/.rvm/rubies/ruby-2.0.0-rc1/lib/ruby/site_ruby/2.0.0/rubygems.rb:1110:in `<top (required)>'
    from <internal:gem_prelude>:1:in `require'
    from <internal:gem_prelude>:1:in `<compiled>'


Gem files will remain installed in /home/david/.rvm/gems/ruby-2.0.0-rc1/gems/json-1.5.4 for inspection.
Results logged to /home/david/.rvm/gems/ruby-2.0.0-rc1/gems/json-1.5.4/ext/json/ext/parser/gem_make.out

[drbrain]

@evanphx do you have any clues about this?

[evanphx]

Hm, yep. While installing json, it picked up the Gemfile that is packaged INSIDE the json gem (something I consider very odd). That Gemfile is using features that only bundler supports, thus the error.

I guess we need automatically disable autoloading Gemdep files when building extensions.

--Evan Phoenix // evan@fallingsnow.net

On Sunday, January 27, 2013 at 9:45 AM, Eric Hodel wrote:

@evanphx (https://github.com/evanphx) do you have any clues about this?

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