I've tried that too ... but I see what I'm doing wrong. I guess you have to manually run qmake every time you delete the folder to test it or else it won't update the condition. I just kept rebuilding it, which didn't work. Thanks. Guess one of my previous conditions would have worked for this as well.
When you are entering this on each machine where the creator is used, it will apply to all projects on that machine. Eventually you need to check whether it is updated for all projects already loaded in created. New projects are taking over those system environment settings.