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Path: utzoo!attcan!uunet!oddjob!uwvax!husc6!bloom-beacon!tut.cis.ohio-state.edu!cs.utexas.edu!sm.unisys.com!aero!trwrb!trwspp!spp2!baur
From: baur@spp2.UUCP (Steven L. Baur)
Newsgroups: comp.unix.microport,comp.sys.att,comp.databases
Subject: Re: (386) Unix (In)compatibilities Summary
Message-ID: <1393@spp2.UUCP>
Date: 21 Aug 88 20:20:25 GMT
References: <1988Aug19.200035.5056@gpu.utcs.toronto.edu>
Distribution: comp
Organization: TRW Inc., Redondo Beach, CA
Lines: 18

in article <1988Aug19.200035.5056@gpu.utcs.toronto.edu>, woods@gpu.utcs.toronto.edu (Greg Woods) says:
> ...
> I wouldn't call it coincidence.  I would have been VERY suprised if
> something didn't work.


UNIX binaries are not in general compatible across versions of UNIX for the
same CPU.
For example, most MC68k Unix systems call programs
_start(argc, argv, envp)
char *argv[], **envp;

On the Unixpc programs are called
_start(argv, envp)
char *argv[], **envp;
and the startup routine calculates argc.

steve