Als Macports Benutzer bin ich regemäßig gefrustet, wenn ich nokogiri updaten möchte und es wegen libxml2 kracht. Diese Lösung hat schließlich funktioniert:

<span class="pln">>sudo port install libiconv libxslt libxml2
>gem install nokogiri </span><span class="pun">--</span> <span class="pun">--</span><span class="pln">use</span><span class="pun">-</span><span class="pln">system</span><span class="pun">-</span><span class="pln">libraries </span><span class="pun">--</span><span class="pln">with</span><span class="pun">-</span><span class="pln">iconv</span><span class="pun">-</span><span class="pln">dir</span><span class="pun">=</span><span class="str">/opt/</span><span class="pln">local </span><span class="pun">--</span><span class="pln">with</span><span class="pun">-</span><span class="pln">xml2</span><span class="pun">-</span><span class="pln">dir</span><span class="pun">=</span><span class="str">/opt/</span><span class="pln">local </span><span class="pun">--</span><span class="pln">with</span><span class="pun">-</span><span class="pln">xslt</span><span class="pun">-</span><span class="pln">dir</span><span class="pun">=</span><span class="str">/opt/</span><span class="pln">local</span>