Integrate this short sentence from pasted text.

This was easily integrated, but I am now not sure what I was thinking
with the FIXME note about linking back to the copyleft definition.  The
right link is a forward-link to the derivative works chapter, and thus
I've added that.

gpl-lgpl.tex

@@ -1126,18 +1126,16 @@ fact, has no control over the rules of copyright themselves.  Such rules are
 the domain of copyright law and the courts --- not the licenses that utilize
 those systems.
 
-Copyright law as a whole doesn't propose clear and straightforward guidelines
+Copyright law as a whole does not propose clear and straightforward guidelines
 for identifying the derivative and/or combined works of software.  However,
 no copyright license --- not even the GNU GPL --- can be blamed for this.
 Legislators and court opinions must give us guidance in borderline cases.
-
-% FIXME-URGENT: integrate (and back ref to copyleft section)
-
-A
-lawyer’s conclusion on that subject will be based on the application of rules
+Meanwhile, lawyers will likely based their conclusions on the application of rules
 made in the context of literary or artistic copyright to the different
-context of computer programming.
-%FIXME-URGENT: end
+context of computer programming and by analyzing the (somewhat limited) case
+law and guidance available from various sources.
+(Chapter~\ref{derivative-works} discusses this issue in depth.)
+
 
 \section{GPLv2~\S1: Verbatim Copying}
 \label{GPLv2s1}