[Chicken-janitors] #48: port json, packrat and z3 to chicken 4

[Chicken Trac]

#48: port json, packrat and z3 to chicken 4
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 Reporter:  felix            |       Owner:  felix
     Type:  task             |      Status:  new  
 Priority:  major            |   Milestone:       
Component:  extensions       |     Version:       
 Keywords:  z3 json packrat  |  
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 The attached diff was posted by ckeen on the chicken mailing list.

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Ticket URL: <http://www.irp.oist.jp/trac/chicken/ticket/48>
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Chicken Scheme is a compiler for the Scheme programming language.