mysql default port cleanup (it's set in libmysql.c, NOT in my_getopt)
configure.in
    autoconf 2.52 is enough to build mysql-5.0


client/mysql.cc:
  mysql default port cleanup (it's set in libmysql.c, NOT in my_getopt)
configure.in:
  autoconf 2.52 is enough to build mysql-5.0