[racket] Compiling a program with places

Dear All, I would like to experiment  with "places" in DrRacket. I have seen the examplein the manual and I understand it. I have tried to execute it in DrRacket but it says"no support". This is my first problem.My other (more important) question is how can I turn theexample problem into 1 or 2 executable. Is there any way for this? Thanks for any help, Peter Ivanyi
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