 Extracting libxml0-0.0.0.tar.gz into tmp/x00_00-unknown-linux-gnu/ports/libxml0/0.0.0... OK Running patch with /home/user00000000/.gem/ruby/0.0.0/gems/nokogiri-0.0.0.0/ports/patches/libxml0/0000-Fix-parser-local-buffers-size-problems.patch... Running 'patch' for libxml0 0.0.0... ERROR, review 'tmp/x00_00-unknown-linux-gnu/ports/libxml0/0.0.0/patch.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.  