1.8.2 камень JSON дает мне фатальную ошибку stdio.h

Question

Попытка установить

gem install json -v '1.8.2' 

(..or bundle install с gem 'json', '1.8.2' в Gemfile)

... на Ubuntu 14.04 VM дает мне:

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

    /home/deploy/.rbenv/versions/2.1.5/bin/ruby extconf.rb 
creating Makefile 

make "DESTDIR=" clean 

make "DESTDIR=" 
compiling generator.c 
In file included from /home/deploy/.rbenv/versions/2.1.5/include/ruby-2.1.0/ruby/ruby.h:29:0, 
       from /home/deploy/.rbenv/versions/2.1.5/include/ruby-2.1.0/ruby.h:33, 
       from ../fbuffer/fbuffer.h:5, 
       from generator.c:1: 
/home/deploy/.rbenv/versions/2.1.5/include/ruby-2.1.0/ruby/defines.h:26:19: fatal error: stdio.h: No such file or directory 
#include <stdio.h> 
       ^

Answer 1

sudo apt-get install libc6-dev

установил ее