Add text about moral rights.

gpl-lgpl.tex

@@ -513,9 +513,11 @@ copyright law in the jurisdiction where any licensing dispute occurs.
 
 Those who are most familiar with the USA's system of copyright often are
 surprised to learn that there are certain copyright controls that cannot be
-waived nor disclaimed.
-
-FIXME: moral rights.
+waived nor disclaimed.  Specifically, many copyright regimes outside the USA
+recognize a concept of moral rights of authors.  Typically, moral rights are
+fully compatible with software freedom licensing, as they are usually
+centered around controls that software freedom licenses generally respect,
+such as the right of an authors to require proper attribution for their work.
 
 \section{A Community of Equality}