It's hardly ubiquitous. NetBSD has had it for 11 years. FreeBSD has had it for three years and six months. DragonFly doesn't have it, OpenBSD doesn't have it

It's hardly ubiquitous. NetBSD has had it for 11 years. FreeBSD has had it for three years and six months. DragonFly doesn't have it, OpenBSD doesn't have it... http://cvsweb.netbsd.org/bsdweb.cgi/src/usr.bin/cal/cal.c?rev=1.12&content-type=text/x-cvsweb-markup&only_with_tag=MAIN http://cvsweb.netbsd.org/bsdweb.cgi/src/usr.bin/cal/cal.c?re... http://svnweb.freebsd.org/base?view=revision&revision=204697 http://svnweb.freebsd.org/base?view=revision&revision=204697