[aur-general] How to include sources from sourceforge + creating links not provided by package

Hi, I'd like to know how to specify sources coming from sorceforge in PKGBUILD, and example could work just fine. Also I'd like to know how to create a link automatically once the package has been installed. This implies removing it when removing the package. If necessary, checking if the link exists when upgrading the package (if the package gets removed before installing new version, that might be handled by the removing of the link when removing the package)... Thanks, -- Javier.