Path: utzoo!utgpu!watserv1!watmath!att!linac!pacific.mps.ohio-state.edu!zaphod.mps.ohio-state.edu!usc!cs.utexas.edu!uunet!mcsun!i2unix!ctr!nicb
From: nicb@ctr@italy.eu.net (Nicola Bernardini)
Newsgroups: comp.sources.d
Subject: Re: Comments on ABC problems by the authors
Message-ID: <1991Jan08.140518.13060@ctr@italy.eu.net>
Date: 8 Jan 91 14:05:18 GMT
References: <2747@charon.cwi.nl> <13368@vpk4.UUCP>
Reply-To: nicb@ctr.UUCP (Nicola Bernardini)
Organization: Centro Tempo Reale, Firenze
Lines: 50

In article <13368@vpk4.UUCP> craig@vpk4.ATT.COM (Craig Campbell) writes:
>In article <2747@charon.cwi.nl> timo@cwi.nl (Timo Krijnen) writes:
> 
>>2) Setup and Unixes.
>>Setup tries to find out what type of Unix you are running. After it
>>was written (years ago:-) most unixes got "enhanced". Some
>>SystemV-look-alikes added BSD-isms and vice versa. We have a new
>>version which no longer uses SIGCLD and SIGCHLD, but instead tries to
>
> ... etc., etc.
>
>Timo, there is what might be considered a better way to determine what type of
>system a given package is being compiled on.  That is, the reserved defined 
>symbols in cpp(1).  For example:
>
>System			Symbols Defined By cpp(1)
>
>AT&T 3B2		unix u3b2
>AT&T 3B5		unix u3b5
>AT&T 6386		unix i386
>AT&T 6486		unix i386   (Oh well, it's still in CI)
>
>etc....
>
>I beleive most (hopefully all) vendors have defines for their unique
>systems in their cpp(1) program.  I do not have available other vendors
>systems at this time, however, so I cannot verify that or list the defines.
>Perhaps other netters could fill you in about these.
>
>If these defines are used to select Berkley/Sys V then hopefully, checking
>include files, which may change, will be unnecessary.

I think there is also a standard coming up for manifest defines,
is'nt it? things like M_I386 on a 386 and so on.
(A lot of header files tend to want a little bit
of everything, like i386, M_I386, SYS_V, SYSV, etc.)
------------------------------------------
Nicola Bernardini -  nicb%ctr@italy.eu.net
Centro Tempo Reale
Villa Strozzi
Via Pisana, 77
50143 Firenze
I T A L I A
Tel. ++3955/702444
Fax. ++3955/717712
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Nicola Bernardini -  nicb%ctr@italy.eu.net
Centro Tempo Reale
Villa Strozzi