The sqlite command-line utility (sensibly) links against readline if it is present. Readline is licensed under the GPL. 

Folk who wish to distribute their version of the sqlite utility under a license other than GPL may want to consider using the BSD {link: http://sourceforge.net/projects/libedit/ libedit}  and read the thread around {link: http://sources.redhat.com/ml/guile/1999-02/msg00210.html Jim Blandy's comments} where the guile (lisp library) folk deal with a similar issue.