OMG. I still have to "cope with" (=fight against) historically grown usage of CVS weekly. The same with EMACS (seriously guys, how can anyone be using it as a mailreader/PIM suite etc too?), procmail (which is ok but cumbersome) and (albeit to a lesser degree) SVN (which tends to corrupt repositories if used multi-site).

I'm ok with makefiles, they are simple and clean. And when you lose the oversight/control of your build processes and the output seems a bit unpredictable, it doesn't matter what solution one uses anyway. But ant is a nice build environment too, hmm...