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From: gwyn@brl-tgr.ARPA (Doug Gwyn <gwyn>)
Newsgroups: net.unix-wizards
Subject: Re: Which *nix ? BSD : System V
Message-ID: <8320@brl-tgr.ARPA>
Date: Tue, 19-Feb-85 22:43:35 EST
Article-I.D.: brl-tgr.8320
Posted: Tue Feb 19 22:43:35 1985
Date-Received: Thu, 21-Feb-85 05:47:16 EST
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Organization: Ballistic Research Lab
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> I'm not sure what the result would be with Doug Gwyn's SysV emulation
> under 4.2BSD, either; if it doesn't provide a separate copy of <fcntl.h>
> your program would be built for 4.2BSD, but would be linked with SysV
> libraries.

Not a problem; the emulation is complete unto itself and has its own
ersatz System V include directory (the files in it have been tweaked
a bit to fit 4.2BSD but the user is not supposed to notice this).  I
even went so far as to avoid #including ANY native 4.2BSD headers,
but I would not recommend this as a general practice!  (I plead
extenuating circumstances.)