title: gem 'twitter-bootstrap-rails' error on rails 3.2.2
body: <p>When I add:</p>
  
  <pre><code> gem 'twitter-bootstrap-rails' 
  </code></pre>
  
  <p>in my Gemfile and I run:</p>
  
  <pre><code>bundle install
  </code></pre>
  
  <p>I an get error:</p>
  
  <pre><code>cc1plus.exe: warning: command line option "-Wdeclaration-after-statement" is valid for C/ObjC but not for C++
  cc1plus.exe: warning: command line option "-Wimplicit-function-declaration" is valid for C/ObjC but not for C++
  In file included from v8_value.cpp:1:0:
  v8_handle.h: In function 'v8::Persistent&lt;T&gt;&amp; rr_v8_handle(VALUE) [with T = v8::Value, VALUE = long unsigned int]':
  v8_value.cpp:10:37:   instantiated from here
  v8_handle.h:43:71: warning: dereferencing type-punned pointer will break strict-aliasing rules
  g++.exe: unrecognized option '-rdynamic'
  compiling v8_weakref.cpp
  cc1plus.exe: warning: command line option "-Wdeclaration-after-statement" is valid for C/ObjC but not for C++
  cc1plus.exe: warning: command line option "-Wimplicit-function-declaration" is valid for C/ObjC but not for C++
  g++.exe: unrecognized option '-rdynamic'
  linking shared-object v8.so
  g++.exe: d:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/libv8-3.3.10.4/lib/libv8/build/v8/libv8.a: No such file
   or directory
  make: *** [v8.so] Error 1
  
  
  Gem files will remain installed in d:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/therubyracer-0.9.10 for inspe
  ction.
  Results logged to d:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/therubyracer-0.9.10/ext/v8/gem_make.out
  An error occured while installing therubyracer (0.9.10), and Bundler cannot continue.
  Make sure that `gem install therubyracer -v '0.9.10'` succeeds before bundling.
  </code></pre>