Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!cbmvax!amix!ag
From: ag@amix.commodore.com (Keith Gabryelski)
Newsgroups: comp.unix.amiga
Subject: Re: stdio.h incompatibility?
Message-ID: <2712@amix.commodore.com>
Date: 21 Jun 91 00:05:39 GMT
References: <1991Jun17.101219@cs.utwente.nl>
Organization: Commodore-Amiga Unix Development
Lines: 30

devisser@cs.utwente.nl (Jan de Visser) writes:
> When trying to install g++ on my Amiga 3000UX, it complained that a
> FILE does not have a _bufsize field. I examined stdio.h, where FILE
> is defined, and what do you think? No _bufsize! (strange eh :-).
> [...]
> What is the reason for this incompatibility? What to do to solve it?

First, g++ should not be relying on non-portable features of some
stdio implementations.  I suspect, if you look hard, you will find
some way around this.

_bufsize could *probably* be emulated by the `_bufsiz' macro in the
SVR4 implementation but I make no claims that it will actually do what
you want.  It would be better to fix the code in question then to
add another non-portable hack.

We have a compiled g++ here (but the executable doesn't do anything
that interesting yet).

> Are there more of this kind of incompatibilties?

Yes.  On a SUN4 running SunOS 4.0.3c the 42nd byte of the program
`/bin/cat' is `03' on Amiga Unix Release 1.1 it is `00'.  Don't rely
on this! :-)

Pax, Keith

-- 
Keith Gabryelski                                 Advanced Products Group
ag@amix.commodore.com                                 ...!cbmvax!amix!ag