gistfile1.txt

[ec2-user@ip-10-168-125-13 Noctilucent]$ gem install io-console
Building native extensions.  This could take a while...
ERROR:  Error installing io-console:
        ERROR: Failed to build gem native extension.

    /usr/bin/ruby2.0 extconf.rb
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need configuration options.

Provided configuration options:
        --with-opt-dir
        --without-opt-dir
        --with-opt-include
        --without-opt-include=${opt-dir}/include
        --with-opt-lib
        --without-opt-lib=${opt-dir}/lib64
        --with-make-prog
        --without-make-prog
        --srcdir=.
        --curdir
        --ruby=/usr/bin/ruby2.0
/usr/share/ruby/2.0/mkmf.rb:434:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
        from /usr/share/ruby/2.0/mkmf.rb:549:in `block in try_compile'
        from /usr/share/ruby/2.0/mkmf.rb:502:in `with_werror'
        from /usr/share/ruby/2.0/mkmf.rb:549:in `try_compile'
        from /usr/share/ruby/2.0/mkmf.rb:789:in `macro_defined?'
        from extconf.rb:7:in `<main>'


Gem files will remain installed in /home/ec2-user/.gem/ruby/2.0/gems/io-console-0.4.5 for inspection.
Results logged to /home/ec2-user/.gem/ruby/2.0/gems/io-console-0.4.5/./gem_make.out