NOKOGIRI_USE_SYSTEM_LIBRARIES is not documented

[p-originate]

http://nokogiri.org/tutorials/installing_nokogiri.html says nothing about the subject.

[knu]

@flavorjones Last month I added a --help option to ext/nokogiri/extconf.rb. Could you reflect the instructions to nokogiri.org-tutorials and push it to nokogiri.org?

[cbandy]

@knu I just noticed that the extconf.rb shipped with 1.6.1 appears to be from 1.6.0. The --help option is not present in the 1.6.1 gem.

Unrelated!

[flavorjones]

The --use-system-libraries option, along with most of the other available options, is now documented in the installation tutorial at http://www.nokogiri.org/tutorials/installing_nokogiri.html

[tibbon]

That raises an error for me now:

gem install nokogiri --use-system-libraries -v '1.8.4' --source 'https://rubygems.org/'
ERROR:  While executing gem ... (OptionParser::InvalidOption)
    invalid option: --use-system-libraries

[ar7max]

@tibbon
An example from this page:
gem install nokogiri -- --use-system-libraries

`

[flavorjones]

@tibbon please make sure you've got -- in your gem install command before you use --use-system-libraries.

You used:

gem install nokogiri --use-system-libraries

but the documented syntax is

gem install nokogiri -- --use-system-libraries

Finally, this issue has been closed for over three years. If you have any further issues, please reach out on the nokogiri-talk mailing list, gitter, IRC, or open a new issue. Thanks!