problem with XSLT

good night I need help to build a program to make a conversion into a ruby xslt someone already used these libraries? I found an example on a site such as the following but could not install the gems know if this is only for Linux?

   1    2 require 'xml/libxml'    3 require 'xml/libxslt'    4    5 xslt = XML::XSLT.new()    6 xslt.xml = "news_links.xml"    7 xslt.xsl = "links2html.xsl"    8    9 out = xslt.serve()   10 print out;