## we have our own version compare function.
## Once OSX has the option, below function is good enough.
##
## check_minimum_version() {
##     versions=($(echo -e "$1\n$2" | sort -V))
##     return [ "$1" == "${versions[0]}" ]
## }
##
check_minimum_version() {
	IFS='.' read -r -a varray1 <<<"$1"
	IFS='.' read -r -a varray2 <<<"$2"

	for i in "${!varray1[@]}"; do