Nokogiri missing libiconv error. Chapter 3 of RoR book tutorial

I posted a question on stackoverflow but it hasnt been much help:

I also followed the homebrew instructions to get libiconv. I have it
downloaded and installed but whenever I run gem install nokogiri. I get
the
same error

ERROR: Error installing nokogiri:

ERROR: Failed to build gem native extension.

/Users/bradfordli/.rvm/rubies/ruby-2.0.0-p481/bin/ruby extconf.rb

Building nokogiri using packaged libraries.


libiconv is missing. please visit
Installing Nokogiri - Nokogiri for help with
installing dependencies.


*** 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

–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=/Users/bradfordli/.rvm/rubies/ruby-2.0.0-p481/bin/ruby

–help

–clean

–use-system-libraries

–enable-static

–disable-static

–with-zlib-dir

–without-zlib-dir

–with-zlib-include

–without-zlib-include=${zlib-dir}/include

–with-zlib-lib

–without-zlib-lib=${zlib-dir}/lib

–enable-cross-build

–disable-cross-build

Gem files will remain installed in
/Users/bradfordli/.rvm/gems/ruby-2.0.0-p481@railstutorial_rails_4_0/gems/nokogiri-1.6.2.1
for inspection.

Results logged to
/Users/bradfordli/.rvm/gems/ruby-2.0.0-p481@railstutorial_rails_4_0/gems/nokogiri-1.6.2.1/ext/nokogiri/gem_make.out

I checked /usr/local/Cellar and I have a libiconv direcotry in there but
I
always get the error saying libiconv is missing

Could it be that you are running OSX 10.6? I have the same problem, and
already contacted the nokogiri supporters. At least on this OSX
version. it doesn’t work.

I have also informed Michael H. to consider this in the next update
of his tutorial. You will have to do without Capybara.