# Jeremie Le Hen 2007-01-28:
> On Sun, Jan 28, 2007 at 06:45:48AM -0500, Thor Lancelot Simon wrote:
> > On Sun, Jan 28, 2007 at 06:59:04AM +0100, Jeremie Le Hen wrote:
> > > Hi list,
> > > 
> > > (Please Cc: in your reply, I'm not subscribed.)
> > > 
> > > I've already sent this e-mail to tech-toolchain@ but got no answer.
> > > I dare to resend it here to reach a larger audience.
> > 
> > The audience dares to point out that a shared library with only a major
> > number is not supported.
> > 
> > "Unix gives you enough rope..."
> 
> Ok, I'm sorry.  Is it possible to trigger an error whenever only the
> major version if defined ?  NetBSD's make(1) does not have the .error
> statement, what can I use instead ?

I usually do something like below.

	-- Jachym

.if !defined(FOO)
.BEGIN:
	@echo "Error ===> FOO not defined"
	@exit 1
.endif