sunos 4.1.4 Makefile and regex.[ch] fix

[mouring at etoh.eviladmin.org]

On Fri, 8 Dec 2000, Ishikawa wrote:

> Hi,
> 
> At the office, there is an old ss5 box running sunos 4.1.4.
> I have configured openssh using gcc on this machine.
> 
> In doing so, I found a few compilation and configuration problems.
> 
> 1. Compilation Problem.
> SunOS 4.1.4 doesn't have regex.h header nor the entry points regex.c
> is supposed to offer.
> 

We support pcre (POSIX Regular Expression Library) for OS that lack regex,
or have a non-POSIX version (Like NeXTStep).  The 'INSTALL' file has a URL
to where you can pick up the library.

- Ben