Re: AC_TYPE_SIGNAL obsolete?

[Bob Friesenhahn]

On Tue, 10 Jun 2008, Paul Eggert wrote:
> Yes, absolutely; it took quite some time for those old systems to die
> off.  But they have been dead for at least a decade.  It's time to
> move on.

A minimum of 10 years of coverage seems good to me.  12 years is a 
good maximum limit.  5 or 7 years is definitely not enough.  5 or 7 
years is only acceptable when open source OSs are considered and not 
when proprietary OSs are considered.

Solaris 2.6 (July 1997) supported the void return from signal 
handlers.

> Here's another, slightly less-conservative rule that I find useful:
> when the original supplier of an operating system version no longer
> supports that version, then we don't need to support it either.  For

I don't buy this story at all.  Lots of original suppliers go bankrupt 
or completely dump existing product lines.  Each supplier has 
different support philosophies.  Economic incentive has little to do 
with open source.

Bob
======================================
Bob Friesenhahn
address@hidden, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/