iceweasel from sid sources

[Mark Grieveson <dg135@torfree.net>]

Hello.  I run Lenny, and I'm trying to create, and then install, a
debian package of iceweasel from sid sources.  However, I've run into a
problem.  It depends on xulrunner, and xulrunner depends on sqlite.
But, in trying to build the sqlite package, I get the following error:

cd . && libtoolize -c -f
if [ -d ./m4 ]; then m4="-I m4"; fi; if [ -e ./aclocal.m4 ]; then cd .
&& aclocal-1.11 $m4; fi /bin/sh: aclocal-1.11: command not found
make: *** [debian/stamp-autotools-files] Error 127
dpkg-buildpackage: failure: debian/rules build gave error exit status 2

Usually, when I get an error when working with source packages, it'll
direct me to a required package.  But this error does not seem to be
doing that.  So, does anyone know how I can fix this?

Mark