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Date: Thu, 12 Jun 2003 12:06:57 -0400 (EDT)
From: Garrett Wollman <wollman@lcs.mit.edu>
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To: Tim Robbins <tjr@freebsd.org>
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cc: current@freebsd.org
Subject: Re: Apparent i386 alloca.S bug (was: adsl/pppoe no longer
	connecting on 5.1)
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<<On Thu, 12 Jun 2003 22:22:07 +1000, Tim Robbins <tjr@freebsd.org> said:

> builtin alloca() until we figure out how to fix the one in libc.

It is fundamentally impossible to ``fix'' the alloca() implementation
in libc.  alloca() CANNOT be implemented that way.  If GCC's builtin
alloca() is disabled by requesting a strict Standard C environment
(which is not appropriate for FreeBSD anyway), then alloca() is just
an ordinary user symbol and programs expecting the implementation to
supply it should simply fail.

-GAWollman