BSD / GPL compatibility - Derived vs. Fair Use

David Johnson arandir at
Wed Feb 16 07:36:04 UTC 2000

On Tue, 15 Feb 2000, Dennis E. Hamilton wrote:

> 2.	To focus on discussion of derivative works.  Making derivative works is a
> right reserved to the original copyright holder, and so a license is indeed
> required to make one.  And this is all provided for under copyright law.  In
> particular, there is no implied right to make a derivative work by someone
> who is not the copyright holder, so what a copyright license says about it
> is highly pertinent.

In terms of copyright law (and not in terms of programming usage), is an
application that links to a library considered derivative? I would say that
static linking is derivation and runtime linking is not. But I'm not sure about
dynamic linking. RMS brings up some good cases against it, but on the other
side there are the arguments that the two are created and distributed
separately, and that the only differences between dynamic and runtime linking
are purely mechanistic.


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