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From: Archie Cobbs <archie@whistle.com>
Message-Id: <199703301907.LAA20441@bubba.whistle.com>
Subject: Telling 2.2 from 3.0
To: freebsd-questions@freebsd.org
Date: Sun, 30 Mar 1997 11:07:49 -0800 (PST)
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What is the "correct" way to tell which version of FreeBSD you're
building on using #ifdef's in your C source code?

Specifically, I have the problem that a file requires

  #include <net/if_var.h>

when building under 3.0, but not when building under 2.2 (the file
doesn't exist under 2.2).

Thanks,
-Archie

___________________________________________________________________________
Archie Cobbs   *   Whistle Communications, Inc.  *   http://www.whistle.com