autoconf version problem

Hello I have a very annoying problem. For compeling Spidermonkey automake 2.13 is required.But if I change that Cinnamon cannot be compiled because its needed a newer automake. I tried to autoreconf Spidermonkey but then it fails with this message: build/autoconf/acwinpaths.m4:44:Error Defn undefined macro AC_OUTPUT_FILES. So is it somewhere possible to use two seperate versions of automake and name the old one automake-1.13 for example. I did Google for a solution but Mozilla don't have solved this one for years. Roelof