gistfile1.txt

➜  mysql2.git git:(0.2.x) ✗ ruby --version                                   
ruby 1.9.2p180 (2011-02-18 revision 30909) [x86_64-darwin10.6.0]
➜  mysql2.git git:(0.2.x) ✗ rake cross native gem RUBY_CC_VERSION=1.8.7:1.9.2
(in /Users/brianmario/Sites/opensource/mysql2.git)
cd tmp/x86-mswin32-60/mysql2/1.8.7
/Users/brianmario/.rvm/rubies/ruby-1.9.2-p180/bin/ruby -I. -rfake ../../../../ext/mysql2/extconf.rb --with-mysql-include=/Users/brianmario/Sites/opensource/mysql2.git/vendor/mysql-5.1.56-win32/include --with-mysql-lib=/Users/brianmario/Sites/opensource/mysql2.git/vendor/mysql-5.1.56-win32/lib/opt
/Users/brianmario/Sites/opensource/mysql2.git/tmp/x86-mswin32-60/mysql2/1.8.7/mkmf.rb:1166:in `block in dir_config': undefined method `+' for nil:NilClass (NoMethodError)
	from /Users/brianmario/Sites/opensource/mysql2.git/tmp/x86-mswin32-60/mysql2/1.8.7/mkmf.rb:1166:in `collect'
	from /Users/brianmario/Sites/opensource/mysql2.git/tmp/x86-mswin32-60/mysql2/1.8.7/mkmf.rb:1166:in `dir_config'
	from /Users/brianmario/Sites/opensource/mysql2.git/tmp/x86-mswin32-60/mysql2/1.8.7/mkmf.rb:1736:in `init_mkmf'
	from /Users/brianmario/Sites/opensource/mysql2.git/tmp/x86-mswin32-60/mysql2/1.8.7/mkmf.rb:1761:in `<top (required)>'
	from <internal:lib/rubygems/custom_require>:29:in `require'
	from <internal:lib/rubygems/custom_require>:29:in `require'
	from ../../../../ext/mysql2/extconf.rb:2:in `<main>'
rake aborted!
Command failed with status (1): [/Users/brianmario/.rvm/rubies/ruby-1.9.2-p...]

(See full trace by running task with --trace)