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donaldr3 2014-03-21 19:23:04 -04:00
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gpl-lgpl.tex
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@ -3927,15 +3927,15 @@ clarify between the different types of derivative works: ``works that use
the library,'' and ``works based on the library.'' Unlike the GPL, the LGPL must
draw some lines regarding derivative works. We do this here in this
license because we specifically seek to liberalize the rights afforded to
those who make derivative works. In GPL, we reach as far as copyright law
allows. In LGPL, we want to draw a line that allows some derivative works
those who make derivative works. In the GPL, we reach as far as copyright law
allows. In the LGPL, we want to draw a line that allows some derivative works
copyright law would otherwise prohibit if the copyright holder exercised
his full permitted controls over the work.
\section{An Application: A Work that Uses the Library}
In the effort to allow certain proprietary derivative works and prohibit
others, LGPL distinguishes between two classes of derivative works:
others, the LGPL distinguishes between two classes of derivative works:
``works based on the library,'' and ``works that use the library.'' The
distinction is drawn on the bright line of binary (or runtime) derivative
works and source code derivatives. We will first consider the definition
@ -3976,7 +3976,7 @@ the library,'' works as follows:
\item Since \lplusi{} is a derivative work of both \worki{} and \workl{},
the license of \workl{} (the LGPL) can put restrictions on the license
of \lplusi{}. In fact, this is what LGPL does.
of \lplusi{}. In fact, this is what the LGPL does.
\end{itemize}
@ -4027,7 +4027,7 @@ In short, a ``work based on the library'' could be defined as any
derivative work of LGPL'd software that cannot otherwise fit the
definition of a ``work that uses the library.'' A ``work based on the
library'' extends the full width and depth of copyright derivative works,
in the same sense that GPL does.
in the same sense that the GPL does.
Most typically, one creates a ``work based on the library'' by directly
modifying the source of the library. Such a work could also be created by