gem install mysql generates this errors: ruby extconf.rb install mysql checking for mysql_query() in mysqlclient.lib... no hecking for main() in m.lib... yes checking for mysql_query() in mysqlclient.lib... no checking for main() in z.lib... no checking for mysql_query() in mysqlclient.lib... no checking for main() in socket.lib... no checking for mysql_query() in mysqlclient.lib... no checking for main() in nsl.lib... no checking for mysql_query() in mysqlclient.lib... no Both in Linux and in Windows. Any idea? Thanks in advance. JC