Can't install via gem

[alexbilbie]

I can't install via sudo gem install vcloud-rest.

I'm running Ruby (on OSX via RVM) ruby 1.9.3p362 (2012-12-25 revision 38607) [x86_64-darwin12.2.0] and Gem 1.8.24.

This is the output I get:

sudo gem install vcloud-rest                                                                  alexbilbie@localhost
Building native extensions.  This could take a while...
ERROR:  Error installing vcloud-rest:
    ERROR: Failed to build gem native extension.

        /Users/alexbilbie/.rvm/rubies/ruby-1.9.3-p362/bin/ruby extconf.rb
checking for libxml/parser.h... *** 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
    --with-opt-include
    --without-opt-include=${opt-dir}/include
    --with-opt-lib
    --without-opt-lib=${opt-dir}/lib
    --with-make-prog
    --without-make-prog
    --srcdir=.
    --curdir
    --ruby=/Users/alexbilbie/.rvm/rubies/ruby-1.9.3-p362/bin/ruby
    --with-zlib-dir
    --without-zlib-dir
    --with-zlib-include
    --without-zlib-include=${zlib-dir}/include
    --with-zlib-lib
    --without-zlib-lib=${zlib-dir}/lib
    --with-iconv-dir
    --without-iconv-dir
    --with-iconv-include
    --without-iconv-include=${iconv-dir}/include
    --with-iconv-lib
    --without-iconv-lib=${iconv-dir}/lib
    --with-xml2-dir
    --without-xml2-dir
    --with-xml2-include
    --without-xml2-include=${xml2-dir}/include
    --with-xml2-lib
    --without-xml2-lib=${xml2-dir}/lib
    --with-xslt-dir
    --without-xslt-dir
    --with-xslt-include
    --without-xslt-include=${xslt-dir}/include
    --with-xslt-lib
    --without-xslt-lib=${xslt-dir}/lib
    --with-libxslt-config
    --without-libxslt-config
    --with-pkg-config
    --without-pkg-config
    --with-libxml-2.0-config
    --without-libxml-2.0-config
    --with-libiconv-config
    --without-libiconv-config
/Users/alexbilbie/.rvm/rubies/ruby-1.9.3-p362/lib/ruby/1.9.1/mkmf.rb:381:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
    from /Users/alexbilbie/.rvm/rubies/ruby-1.9.3-p362/lib/ruby/1.9.1/mkmf.rb:506:in `try_cpp'
    from /Users/alexbilbie/.rvm/rubies/ruby-1.9.3-p362/lib/ruby/1.9.1/mkmf.rb:970:in `block in find_header'
    from /Users/alexbilbie/.rvm/rubies/ruby-1.9.3-p362/lib/ruby/1.9.1/mkmf.rb:790:in `block in checking_for'
    from /Users/alexbilbie/.rvm/rubies/ruby-1.9.3-p362/lib/ruby/1.9.1/mkmf.rb:284:in `block (2 levels) in postpone'
    from /Users/alexbilbie/.rvm/rubies/ruby-1.9.3-p362/lib/ruby/1.9.1/mkmf.rb:254:in `open'
    from /Users/alexbilbie/.rvm/rubies/ruby-1.9.3-p362/lib/ruby/1.9.1/mkmf.rb:284:in `block in postpone'
    from /Users/alexbilbie/.rvm/rubies/ruby-1.9.3-p362/lib/ruby/1.9.1/mkmf.rb:254:in `open'
    from /Users/alexbilbie/.rvm/rubies/ruby-1.9.3-p362/lib/ruby/1.9.1/mkmf.rb:280:in `postpone'
    from /Users/alexbilbie/.rvm/rubies/ruby-1.9.3-p362/lib/ruby/1.9.1/mkmf.rb:789:in `checking_for'
    from /Users/alexbilbie/.rvm/rubies/ruby-1.9.3-p362/lib/ruby/1.9.1/mkmf.rb:969:in `find_header'
    from extconf.rb:116:in `<main>'

Gem files will remain installed in /Users/alexbilbie/.rvm/gems/ruby-1.9.3-p362/gems/nokogiri-1.5.10 for inspection.
Results logged to /Users/alexbilbie/.rvm/gems/ruby-1.9.3-p362/gems/nokogiri-1.5.10/ext/nokogiri/gem_make.out

[astratto]

Hi, please take a look at the line "You have to install development tools first."...

Do you have Xcode installed? Are you able to compile other gems (i.e., nokogiri)?

[alexbilbie]

I have all the development tools installed and yes I'm able to compile and install other gems.

Emailing from my iPhone like a BOSS

On 14 Jun 2013, at 09:13, Stefano Tortarolo notifications@github.com wrote:

Hi, please take a look at the line "You have to install development tools first."...

Do you have Xcode installed? Are you able to compile other gems (i.e., nokogiri)?

— Reply to this email directly or view it on GitHub.

[astratto]

Uhm... since you are using RVM, could you try to install it without sudo?

[astratto]

I close this issue, feel free to re-open it if you need more information.