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From: G.Eustace@massey.ac.nz (Glen Eustace)
Newsgroups: comp.os.msdos.programmer
Subject: MSC5.1 - program fails when optimised ?
Message-ID: <1990Dec17.025507.27464@massey.ac.nz>
Date: 17 Dec 90 02:55:07 GMT
Organization: Massey University, Palmerston North, New Zealand
Lines: 30
X-Reader: NETNEWS/PC Version 2.1

I am presently devloping some programs using the Programmer's Toolkit
that is available as an add-on to the Sun Microsystems PC-NFS
product.  I am getting thoroughly frustrated by the following
situation which I hope some one can help with.  If I compile all the
modules ( MSC 5.1 ) with the options,

 CFLAGS        = -c -Zi -Od -AL -G0 -D$(MSC) $(INCLUDE)

then the program generally works.  But when I attempt to use

 CFLAGS        = -c -Gs -Ox -AL -G0 -D$(MSC) $(INCLUDE)

all various parts fail completely.

I have had this experience with other operating systems and compilers
but am not really sure what I ought to be looking for with MSC to fix the
problem.  If it is to do with the optimisation can anyone suggest
what constructs could be being corrupted.  If I change the level of
optimisation what is a good alternative.  If its not optimisation at
all can some one throw some light on the situation.

Any help appreciated, Thanks.



-- 
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Glen Eustace, Software Manager, Computer Centre, Massey University,
Palmerston North, New Zealand.        EMail: G.Eustace@massey.ac.nz
Phone: +64 63 69099 x7440, Fax: +64 63 505 607,    Timezone: GMT-12