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From: ras%hep.nrc.CDN@ean.ubc.ca (Rudolph Shally)
Newsgroups: comp.os.vms
Subject: shareable-image
Message-ID: <11*ras@hep.nrc.cdn>
Date: 6 May 88 17:57:00 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 18

The problem is how to override a routine in a shareable image.
The image contains several routines, say 1000 and many of those
call another routine (say QNEXTE) in the same image. QNEXTE 
in turn, calls another routine, say, QNEXT. In VAX macro the call is
(in QNEXTE):

       CALLS   #0,QNEXT

The trouble is that QNEXT is supposed to be a user supplied routine
while I had to include a dummy routine QNEXT in the shareable image
since everything must be linked. When the user links his main program
and his own QNEXT with the shareable image the linker won't accept
the user supplied routine QNEXT since a dummy version is already
in the shareable image. How can one owerride the dummy routine?

Please reply to: 
                 ras@hep.nrc.cdn    (Rudolph Shally)