GPL modules for a differently licensed OS'

Posted Sep 15, 2007 14:47 UTC (Sat) by sepreece (guest, #19270)
In reply to: GPL modules for a differently licensed OS' by nim-nim
Parent article: Relicensing: what's legal and what's right

"The hard truth is derivative is anything that makes use of ideas/code in the protected work."

Well, no. Copyright doesn't protect ideas, it only protects the expression of ideas. You can rephrase those ideas in other language without violating the copyright. However, the Devil is in the details and the analysis is not simple. There are scads of court decisions on specific cases, many of which seem to conflict.

Also, copyright does not control "functional aspects". There is a fair amount of precedent indicating that copyright doesn't apply when a program is simply using or interfacing with another program - that even direct copying of code may be OK when it is necessary to allow interoperation.

scott

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GPL modules for a differently licensed OS'

Posted Sep 16, 2007 19:54 UTC (Sun) by nim-nim (subscriber, #34454) [Link]

Ideas in the protected work being idea expressions.

Anyway.

You are not allowed to "rephrase" a copyrighted works idea expressions.

Copyright law allows looking at something to produce something else. Copyright law allows not looking at something to produce the same thing.

But copyright law forbids translation of something in the same something in another language/medium/format whatever. It does not take a judge a lot to decide something else is effectively something else. But mere rephrasing won't do.

Just ask J K Rowling what she thinks about your legal theory. I believe she sent a few rephrasers to jail.