INSTALL $ git clone git://github.com/yappo/mysql-geo_distance.git $ cd mysql-geo_distance $ g++ -shared -fPIC -Wall -g mysql_geo_distance.cc -o mysql_geo_distance.so $ sudo cp mysql_geo_distance.so /foo/bar/lib/mysql/plugin/ $ mysql -uroot mysql> create function geo_distance returns real soname 'mysql_geo_distance.so'; USAGE SELECT geo_distance(35.6130752, 140.118231, 35.612956, 140.118685) AS distance; SEE ALSO AUTHOR Kazuhiro Osawa