Comment previous, suggested by Chris Demetriou.
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/* $NetBSD: null.h,v 1.2 2000/05/19 04:37:20 thorpej Exp $ */
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/* $NetBSD: null.h,v 1.3 2000/05/19 05:04:32 thorpej Exp $ */
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#ifndef NULL
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#if !defined(__GNUG__) || __GNUG__ < 2 || (__GNUG__ == 2 && __GNUC_MINOR__ < 90)
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#ifdef __AUDIT__
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/*
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* This will cause GCC to emit a warning if you attempt to use NULL
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* with some non-pointer object, return value, etc.
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*/
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#define NULL (void *)0
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#else
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#define NULL 0
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