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From: kjb@zycad.UUCP (Kevin Buchs)
Newsgroups: comp.sys.apollo
Subject: Apollo Pascal and Modules
Message-ID: <678@zycad.UUCP>
Date: Sat, 7-Nov-87 00:23:55 EST
Article-I.D.: zycad.678
Posted: Sat Nov  7 00:23:55 1987
Date-Received: Wed, 11-Nov-87 03:58:18 EST
Organization: ZYCAD, Oakdale, MN
Lines: 23

I have been working on modifying some old Apollo Pascal code 
and in adding new features I have been trying to make it 
more modular. By this I mean the use of seperate source 
code files and the "Module" declaration.  Under this 
implementation, there is a "main" module, which is the one 
headed with Program, instead of Module.  One may call any
procedure/function defined in any non-main module from any 
module including the main module.  There is one thing I 
don't understand:  Why can one not make calls to 
procedures/functions in the "main" module from one of the
non-main modules?

I am using the trivial workaround now of having a 1 line 
main module which calls a routine in a non-main module. 
In other words, I took all the code out of the main module
and put in into a non-main module, where I can call it 
from any other non-main module.

Are there other more clever workarounds, perhaps involving
the use of extern qualifiers?
-- 
Kevin Buchs   3500 Zycad Dr. Oakdale, MN 55109  (612)779-5548
Zycad Corp.   {rutgers,ihnp4,amdahl,umn-cs}!meccts!nis!zycad!kjb