<% possible_mysql_socks = %w{/opt/local/var/run/mysql5/mysqld.sock /tmp/mysqld.sock /tmp/mysql.sock /var/run/mysqld/mysqld.sock /var/lib/mysql/mysql.sock} %>
development:
  adapter: mysql
  username: dbuser
  database: le_base
  password: secret
  socket: <%= possible_mysql_socks.detect{|socket| File.socket?(socket) } %>

olle:~ olleolleolle$ ln -s /tmp/mysql.sock test_sym
olle:~ olleolleolle$ irb
>> File.socket?("test_sym")
=> true