Check if the global variable exists before trying to deliver it to the child interpreter
Check if the global variable exists before trying to deliver it to the child interpreter

git-svn-id: 620571fa9b4bd0cbce9a0cf901e91ef896adbf27@156 d073be05-634f-4543-b044-5fe20cf6d1d6

danchr/macports-base,macports/macports-base,macports/macports-base,neverpanic/macports-base,danchr/macports-base,neverpanic/macports-base