MySQL Ruby Gem install issues - mysql

Question

So I know that this question has been asked before, and I have looked through all of the previous answers and still can't find a solution. Hoping you all can help.
The setup: I am running Mac OS X 10.6 Server. I have used the built in MySQL install on web apps and it works great. Now I am trying to run a RoR app that requires MySQL.
So, whenever I enter
gem install mysql
it spits back the following error:
Building native extensions. This could take a while...
ERROR: Error installing mysql:
ERROR: Failed to build gem native extension.
/Users/admin/.rvm/rubies/ruby-1.9.2-p180/bin/ruby extconf.rb --with-mysql-config=/var/mysql
*** 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
--without-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/admin/.rvm/rubies/ruby-1.9.2-p180/bin/ruby
--with-mysql-config
extconf.rb:35:in ``': Permission denied - /var/mysql --cflags (Errno::EACCES)
from extconf.rb:35:in `<main>'
Gem files will remain installed in /Users/admin/.rvm/gems/ruby-1.9.2-p180#rails3/gems/mysql-2.8.1 for inspection.
Results logged to /Users/admin/.rvm/gems/ruby-1.9.2-p180#rails3/gems/mysql- 2.8.1/ext/mysql_api/gem_make.out
So, through my research, I tried to specifically state the location of the MySQL install.
gem install mysql -- --with-mysql-config=/var/mysql
Unfortunately, with the same results.
Any ideas of where to go from here?
Thanks!
Kevin

Answer 1

Kevin,
This article may help you address your problem:
http://rapd.wordpress.com/2007/05/17/battle-against-ror-gem-install-mysql/

Answer 2

On Mac OSX Lion 10.7 this command helped me install the mysql2 gem:
sudo gem install mysql2 -- --with-mysql-lib=/usr/local/Cellar/mysql55/5.5.30/lib --with-mysql-include=/usr/local/Cellar/mysql55/5.5.30/include/
Before this I did install mysql55 via brew like described above.

Answer 3

Your milage may vary, but here's what seemed to work for us. First, ensure you have the right libraries on there first (from Apple):
http://www.opensource.apple.com/other/MySQL-53.binaries.tar.gz
Install those via:
sudo tar -xvf ~/Downloads/MySQL-53.binaries.tar -C /
Then, for our 10.6 Server, the location of mysql_config was different:
gem install mysql -- --with-mysql-config=/usr/bin/mysql_config

Answer 4

gem install mysql2 -- '--with-mysql-lib="c:\Program Files\MySQL\MySQL Server 5.5\lib" --with-mysql-include="c:\Program Files\MySQL\MySQL Server 5.5\include"'
Using the above worked with ruby Ruby 2.0 on Windows. I changed the library to just lib instead of lib\opt because lib\opt is not present in MySQL Server 5.5.
I picked the above command from a solution to this problem presented at:
http://rorguide.blogspot.com/2011/03/installing-mysql2-gem-on-ruby-192-and.html

Answer 5

I had success with this sudo gem install mysql -v '2.8.1' -- --with-mysql-config=/usr/local/mysql/bin/mysql_config
but specifying the mysql version that I need