Path: utzoo!attcan!uunet!auspex!guy
From: guy@auspex.auspex.com (Guy Harris)
Newsgroups: comp.soft-sys.andrew
Subject: How does "sunV3" get set when "imake"ing Makefiles?
Message-ID: <4384@auspex.auspex.com>
Date: 15 Nov 90 01:25:38 GMT
Organization: Auspex Systems, Santa Clara
Lines: 29

In the "config/imake.tmpl" file, it figures out whether to use the SunOS
3.5 "system.mcr" or the SunOS 4.0 "system.mcr" by doing:

	#if defined(mc68020) || defined(sun3) /* sun3 */
	#ifndef sunV3
	#define sunV3 0
	#endif /* sunV3 */
	#if sunV3
	#include <sun3_35/system.mcr>
	#define MacroIncludeFile sun3_35/system.mcr
	#else /* sunV3 */
	#include <sun3_4/system.mcr>
	#define MacroIncludeFile sun3_4/system.mcr
	#endif /* sunV3 */
	#endif /* sun3 */

I didn't see anything in the README file that specifies any mechanism
for setting "sunV3", nor did I see any definitions of it, other than the
one listed above, in any of the files in the "config" directory.  Is it
set automatically somehow (although I couldn't see anything in the X11R4
"imake" that did it, nor in any of the MIT configuration files), or is
there something you're supposed to do to build Andrew under SunOS 3.5?

(I'm not asking because I want to build it under 3.5; we don't have any
machines running anything before 4.0.  I'm adding new stuff for building
it under SunOS 4.1, so that it can use the SunOS 4.1 dynamic loader to
load up ".do" files and also perhaps so that it can do the right thing
to deal with 4.1's POSIX-compliant tty driver, and may have to resort to
doing the same thing for 4.1 that's done for 3.5.)