-if [[ $(type -t gsu_is_a_number) != "function" ]]; then
- GSU_DIR=${GSU_DIR:=${HOME-}/.gsu}
- . $GSU_DIR/common || exit 1
+if [[ "$(type -t _gsu_setup)" != "function" ]]; then
+ gsu_dir=${gsu_dir:-${BASH_SOURCE[0]%/*}}
+ . $gsu_dir/common || exit 1
+ _gsu_setup