gcl in debian works on many arches, including arm, ppc, ppc64, sparc, alpha, mips, hppa,... Please check if it works on your arch and keyword if it does.It would terrific to have a good lisp on arches other than x86 and amd64 - this will enable to use maxima and fricas on them.
~arm added
Marked ~ppc64.
Added ~ppc.