In fairness, PREFIX works as long as you don't mess with any of the dependent values (bin, lib, man), or as long as you keep them definitely below the PREFIX. The brokenness that people occasionally experience is when they want /usr/local/bin, /usr/local/lib, but then /usr/man/manl. If they set that up, then set PREFIX, there's no common PREFIX to those and things get dicey.
in reply to Re^3: Module::Build users -- please use the "traditional" create_makefile_pl option
in thread Module::Build users -- please use the "traditional" create_makefile_pl option