make.out

/opt/electric_sheep/embedded/bin/ruby extconf.rb
checking if the C compiler accepts -I/opt/electric_sheep/embedded/include... no
Building nokogiri using packaged libraries.
checking for iconv using --with-opt-* flags... yes
************************************************************************
IMPORTANT NOTICE:

Buidling Nokogiri with a packaged version of libxml2-2.9.2
with the following patches applied:
        - 0001-Revert-Missing-initialization-for-the-catalog-module.patch
        - 0002-Fix-missing-entities-after-CVE-2014-3660-fix.patch

Team Nokogiri will keep on doing their best to provide security
updates in a timely manner, but if this is a concern for you and want
to use the system library instead; abort this installation process and
reinstall nokogiri as follows:

    gem install nokogiri -- --use-system-libraries
        [--with-xml2-config=/path/to/xml2-config]
        [--with-xslt-config=/path/to/xslt-config]

If you are using Bundler, tell it to use the option:

    bundle config build.nokogiri --use-system-libraries
    bundle install

Note, however, that nokogiri is not fully compatible with arbitrary
versions of libxml2 provided by OS/package vendors.
************************************************************************
Extracting libxml2-2.9.2.tar.gz into tmp/x86_64-unknown-linux-gnu/ports/libxml2/2.9.2... OK
Running patch with /opt/electric_sheep/embedded/lib/ruby/gems/1.9.1/gems/nokogiri-1.6.4/ports/patches/libxml2/0001-Revert-Missing-initialization-for-the-catalog-module.patch...
Running 'patch' for libxml2 2.9.2... OK
Running patch with /opt/electric_sheep/embedded/lib/ruby/gems/1.9.1/gems/nokogiri-1.6.4/ports/patches/libxml2/0002-Fix-missing-entities-after-CVE-2014-3660-fix.patch...
Running 'patch' for libxml2 2.9.2... OK
Running 'configure' for libxml2 2.9.2... OK
Running 'compile' for libxml2 2.9.2... ERROR, review '/opt/electric_sheep/embedded/lib/ruby/gems/1.9.1/gems/nokogiri-1.6.4/ext/nokogiri/tmp/x86_64-unknown-linux-gnu/ports/libxml2/2.9.2/compile.log' to see what happened.
*** 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=/opt/electric_sheep/embedded/bin/ruby
        --help
        --clean
        --use-system-libraries
        --enable-static
        --disable-static
        --with-zlib-dir
        --without-zlib-dir
        --with-zlib-include
        --without-zlib-include=${zlib-dir}/include
        --with-zlib-lib
        --without-zlib-lib=${zlib-dir}/lib
        --enable-cross-build
        --disable-cross-build
/opt/electric_sheep/embedded/lib/ruby/gems/1.9.1/gems/mini_portile-0.6.1/lib/mini_portile.rb:279:in `block in execute': Failed to complete compile task (RuntimeError)
        from /opt/electric_sheep/embedded/lib/ruby/gems/1.9.1/gems/mini_portile-0.6.1/lib/mini_portile.rb:271:in `chdir'
        from /opt/electric_sheep/embedded/lib/ruby/gems/1.9.1/gems/mini_portile-0.6.1/lib/mini_portile.rb:271:in `execute'
        from /opt/electric_sheep/embedded/lib/ruby/gems/1.9.1/gems/mini_portile-0.6.1/lib/mini_portile.rb:70:in `compile'
        from /opt/electric_sheep/embedded/lib/ruby/gems/1.9.1/gems/mini_portile-0.6.1/lib/mini_portile.rb:110:in `cook'
        from extconf.rb:268:in `block in process_recipe'
        from extconf.rb:167:in `tap'
        from extconf.rb:167:in `process_recipe'
        from extconf.rb:455:in `<main>'