The following packages appear to be using gnulib and gnulib-tool:
+ CSSC http://git.savannah.gnu.org/cgit/cssc.git
Net::CDP http://search.cpan.org/src/MCHAPMAN/Net-CDP-0.09/libcdp/
OPeNDAP http://scm.opendap.org:8090/svn/trunk/
anubis http://cvs.sv.gnu.org/viewcvs/anubis/anubis/
cpio http://cvs.sv.gnu.org/viewcvs/cpio/cpio/
cvs http://cvs.sv.gnu.org/viewcvs/cvs/ccvs/
diffutils http://git.sv.gnu.org/cgit/diffutils.git/
+ febootstrap http://people.redhat.com/~rjones/febootstrap/
findutils http://cvs.sv.gnu.org/viewcvs/findutils/findutils/
gcal http://git.savannah.gnu.org/gitweb/?p=gcal.git
gettext http://cvs.sv.gnu.org/viewcvs/gettext/gettext/
guile http://cvs.sv.gnu.org/viewvc/guile/guile/guile-core/
gzip http://git.sv.gnu.org/cgit/gzip.git/
hello http://cvs.sv.gnu.org/viewcvs/hello/hello/
+ hivex http://git.annexia.org/?p=hivex.git
icoutils http://riva.ucam.org/svn/cjwatson/src/debian/icoutils/trunk/icoutils/
inetutils http://cvs.sv.gnu.org/viewcvs/inetutils/inetutils/
jwhois http://cvs.sv.gnu.org/viewvc/jwhois/jwhois/
netcf http://fedorahosted.org/netcf/
newts http://svn.arete.cc/newts/trunk/
parted http://git.debian.org/?p=parted/parted.git;a=summary
+ patch http://git.sv.gnu.org/gitweb/?p=patch.git
prelude-lml https://trac.prelude-ids.org/browser/trunk/prelude-lml/
prelude-manager https://trac.prelude-ids.org/browser/trunk/prelude-manager/
pspp http://git.sv.gnu.org/gitweb/?p=pspp.git