R6RS Implementations and Licensing

Why are there no good, free, and non-GPL R6RS Scheme implementations? How the fuck am I supposed to embed this into my applications when I'm forced to fucking release the source code to the rest of my software under GPL. No wonder it doesn't have a lot of community adoption outside of academia and the open-sores community.

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What a ridiculous notion. So the list of people qualified to judge R6RS are Leppie, Fujita, Abdulaziz, Higepon and whoever implements Biwa? (Since Racket, Larceny and Chez predate R6RS and therefore the implementations aren't "from scratch")