Path: utzoo!attcan!uunet!ns-mx!iowasp!ceres!zaphod.mps.ohio-state.edu!usc!snorkelwacker!mit-eddie!uw-beaver!ssc-vax!uvicctr.UVic.CA!franklin
From: franklin@uvicctr.UVic.CA.UUCP (Katherine Franklin)
Newsgroups: comp.sys.mac.programmer
Subject: MPW Pascal Units (beginners question)
Message-ID: <931@uvicctr.UVic.CA.UUCP>
Date: 28 Feb 90 04:47:31 GMT
Reply-To: franklin@uvicctr.UUCP (Katherine Franklin)
Distribution: na
Organization: University of Victoria, Victoria B.C. Canada
Lines: 21

Hi,

I'm just getting started with MPW Pascal and Mac programming and I'm
having a hard time figuring out how units work with Pascal with makefiles
and linking. The Pascal manual doesn't seems too helpful, but maybe I just
don't know where to look. I would appreciate any help in answering my
specific question or in any good references for finding out the answer
myself.  Here is my question:

Unit A uses Unit B. Unit C wants to use Unit A, but wants A to use a 
different implementation of Unit B (interface is the same). Is it possible 
to link, use makefiles, etc. to substitute a different implementation of 
Unit B without affecting the contents of Unit A, or the original Unit B ?
Note: Unit A, and both B's are my own creations.

	Thanks,
	  Katherine
------
Katherine Franklin			franklin@uvicctr.uvic.ca
University of Victoria			franklin@uvunix.bitnet
Victoria, BC, Canada