From owner-freebsd-questions  Sun Aug  4 14:13:28 1996
Return-Path: owner-questions
Received: (from root@localhost)
          by freefall.freebsd.org (8.7.5/8.7.3) id OAA24167
          for questions-outgoing; Sun, 4 Aug 1996 14:13:28 -0700 (PDT)
Received: from relay-4.mail.demon.net (relay-4.mail.demon.net [158.152.1.108])
          by freefall.freebsd.org (8.7.5/8.7.3) with SMTP id OAA24161
          for <questions@freebsd.org>; Sun, 4 Aug 1996 14:13:24 -0700 (PDT)
Received: from post.demon.co.uk ([158.152.1.72]) by relay-4.mail.demon.net
          id ae29845; 4 Aug 96 21:13 GMT
Received: from jraynard.demon.co.uk ([158.152.42.77]) by relay-3.mail.demon.net
          id aa08290; 4 Aug 96 22:10 +0100
Received: (from fqueries@localhost) by jraynard.demon.co.uk (8.7.5/8.6.12) id UAA02059; Sun, 4 Aug 1996 20:27:10 GMT
From: James Raynard <fqueries@jraynard.demon.co.uk>
Message-Id: <199608042027.UAA02059@jraynard.demon.co.uk>
Subject: Re: Bug in gawk?
To: mike@networx.ie
Date: Sun, 4 Aug 1996 20:27:09 +0000 ()
Cc: questions@freebsd.org
In-Reply-To: <ECS9608041347A@NetworX.ie> from "Michael Ryan" at Aug 4, 96 01:13:47 pm
X-Mailer: ELM [version 2.4 PL24 ME8a]
Content-Type: text
Sender: owner-questions@freebsd.org
X-Loop: FreeBSD.org
Precedence: bulk

> 
> Am I being unreasonable in expecting the following awk
> program to work?
[snip]
> awk: awkprog:2: (FILENAME=infile FNR=1) fatal: internal error line 1150, file: /
> usr/src/gnu/usr.bin/awk/eval.c

Nope, this definitely looks like a bug in (g)awk.  Apart from the "internal
error" clue, line 1150 of eval.c in the awk source is a call to a function
called "cant_happen()" :-)

>From the context, it looks like a trashed pointer.  In any case, I'd report
it to the GNU utilities team ('info gawk' for details), even though our
version of gawk is rather old.