http://make.paulandlesley.org/multi-arch.html
http://mattmccutchen.net/buildsys/index.html
http://cdrecord.berlios.de/private/makefiles.html
http://www.xs4all.nl/~evbergen/nonrecursive-make.html
http://miller.emu.id.au/pmiller/books/rmch/ (Recursive Make Considered Harmful)
http://www.daniweb.com/forums/thread124637.html