Rails Gem Установить проблемы: Google-Геокодировать

Question

Я пытаюсь установить Google-геокод для рельсов

sudo gem install google-geocode 

, но я получаю следующее сообщение об ошибке. Какие-либо предложения?

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

/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb 
checking for iconv.h in /opt/local/include/,/opt/local/include/libxml2,/opt/local/include,/opt/local/include,/opt/local/include/libxml2,/usr/local/include,/usr/local/include/libxml2,/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/include,/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/include/libxml2,/usr/include,/usr/include/libxml2... yes 
checking for libxml/parser.h in /opt/local/include/,/opt/local/include/libxml2,/opt/local/include,/opt/local/include,/opt/local/include/libxml2,/usr/local/include,/usr/local/include/libxml2,/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/include,/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/include/libxml2,/usr/include,/usr/include/libxml2... yes 
checking for libxslt/xslt.h in /opt/local/include/,/opt/local/include/libxml2,/opt/local/include,/opt/local/include,/opt/local/include/libxml2,/usr/local/include,/usr/local/include/libxml2,/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/include,/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/include/libxml2,/usr/include,/usr/include/libxml2... yes 
checking for libexslt/exslt.h in /opt/local/include/,/opt/local/include/libxml2,/opt/local/include,/opt/local/include,/opt/local/include/libxml2,/usr/local/include,/usr/local/include/libxml2,/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/include,/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/include/libxml2,/usr/include,/usr/include/libxml2... yes 
checking for xmlParseDoc() in -lxml2... no 
libxml2 is missing. try 'port install libxml2' or 'yum install libxml2' 
*** 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}/lib 
    --with-make-prog 
    --without-make-prog 
    --srcdir=. 
    --curdir 
    --ruby=/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby 
    --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-xml2lib 
    --without-xml2lib 


Gem files will remain installed in /Library/Ruby/Gems/1.8/gems/nokogiri-1.4.0 for inspection. 
Results logged to /Library/Ruby/Gems/1.8/gems/nokogiri-1.4.0/ext/nokogiri/gem_make.out 

Answer 1

Вам нужна библиотека:

libxml2 отсутствует. попробуйте 'порт установить libxml2' или 'ни установить libxml2'

Просто найти и установить libxml2.