Better article from years ago, that this blogger is probably rehashing anyway: http://blog.melski.net/2010/11/30/makefile-hacks-print-the-v...
Nope.
Eric (who wrote that blog you are referrring to is a friend), but I wrote this little trick up years before him: http://www.cmcrossroads.com/article/printing-value-makefile-... and now I'm rehashing my own writing 10 years later.