(in /usr/local/src/do/do_mysql)
To cross-compile, install rake-compiler (gem install rake-compiler)
rm -r coverage
/usr/local/src/do/do_mysql/lib/do_mysql_ext.so: libmysqlclient.so.16: cannot open shared object file: No such file or directory - /usr/local/src/do/do_mysql/lib/do_mysql_ext.so (LoadError)
	from /opt/ruby-enterprise-1.8.6-20090201/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
	from /usr/local/src/do/do_mysql/lib/do_mysql.rb:10
	from /opt/ruby-enterprise-1.8.6-20090201/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
	from /opt/ruby-enterprise-1.8.6-20090201/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
	from /usr/local/src/do/do_mysql/spec/spec_helper.rb:29
	from ./spec/integration/do_mysql_spec.rb:4:in `require'
	from ./spec/integration/do_mysql_spec.rb:4
	from /opt/ruby-enterprise-1.8.6-20090201/lib/ruby/gems/1.8/gems/rspec-1.2.2/lib/spec/runner/example_group_runner.rb:15:in `load'
	from /opt/ruby-enterprise-1.8.6-20090201/lib/ruby/gems/1.8/gems/rspec-1.2.2/lib/spec/runner/example_group_runner.rb:15:in `load_files'
	from /opt/ruby-enterprise-1.8.6-20090201/lib/ruby/gems/1.8/gems/rspec-1.2.2/lib/spec/runner/example_group_runner.rb:14:in `each'
	from /opt/ruby-enterprise-1.8.6-20090201/lib/ruby/gems/1.8/gems/rspec-1.2.2/lib/spec/runner/example_group_runner.rb:14:in `load_files'
	from /opt/ruby-enterprise-1.8.6-20090201/lib/ruby/gems/1.8/gems/rspec-1.2.2/lib/spec/runner/options.rb:97:in `run_examples'
	from /opt/ruby-enterprise-1.8.6-20090201/lib/ruby/gems/1.8/gems/rspec-1.2.2/lib/spec/runner/command_line.rb:9:in `run'
	from /opt/ruby-enterprise-1.8.6-20090201/lib/ruby/gems/1.8/gems/rspec-1.2.2/bin/spec:4
rake aborted!
Command /opt/ruby-enterprise-1.8.6-20090201/bin/ruby -I"spec:lib"  "/opt/ruby-enterprise-1.8.6-20090201/lib/ruby/gems/1.8/gems/rspec-1.2.2/bin/spec" "spec/integration/do_mysql_spec.rb" "spec/integration/logging_spec.rb" "spec/integration/quoting_spec.rb" "spec/unit/transaction_spec.rb"  failed