Delivering Quality » Ruby on Rails http://www.markdeepwell.com A Software Developers View of the World Thu, 29 Jul 2010 16:44:04 +0000 en hourly 1 http://wordpress.org/?v=3.0.1 Fixing MySQL Gem on Snow Leopard http://www.markdeepwell.com/2009/09/fixing-mysql-gem-on-snow-leopard/ http://www.markdeepwell.com/2009/09/fixing-mysql-gem-on-snow-leopard/#comments Sun, 06 Sep 2009 22:14:36 +0000 Mark http://www.markdeepwell.com/?p=231 A fresh Snow Leopard (OSX 10.6) install does not have the mysql gem installed, and installing it fails because of missing header files:

Building native extensions. This could take a while...
ERROR: Error installing mysql:
ERROR: Failed to build gem native extension.

/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb install mysql
mkmf.rb can't find header files for ruby at /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ruby.h

To correctly install the mysql gem:

  1. Download and install the MySQL package.
  2. Install XCode that’s bundled with Snow Leopard
  3. Install the gem for your architecture (use -arch i386 if you have an Intel Core Solo or Intel Core Duo processor):

# sudo env ARCHFLAGS="-arch x86_64" gem install mysql -- --with-mysql-config=/usr/local/mysql-5.1.38-osx10.5-x86_64/bin/mysql_config

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