The following commands fail on OSX:
gem install nokogiri gem install nokogiri -- --use-system-libraries gem install nokogiri -- --use-system-libraries --with-xslt-dir=/usr/local/opt/libxslt --with-xml2-dir=/usr/local/opt/libxml2
libxml2: 2.9.4 (installed via homebrew 0.9.9) libxslt: 1.1.28 nokogiri: 1.6.8
If you tried the last command mentioned above, and the following error message, then this guide might solve your problem:
ERROR: cannot discover where libxml2 is located on your system. please make sure `pkg-config` is installed.
The problem I noticed is that the
file won't be discovered by
extconf.rb script because the inferred
path of the
include directory by nokogiri is
/usr/local/opt/libxml2/include. But in the libxml2
2.9.4 version, the path to the header file is
lib paths explicitly solves the problem:
gem install nokogiri -- --use-system-libraries --with-xslt-dir=/usr/local/opt/libxslt --with-xml2-include=/usr/local/opt/libxml2/include/libxml2 --with-xml2-lib=/usr/local/opt/libxml2/lib
I'm not sure if this even a bug, either in functionality or documentation.