Only use "__attribute__ ((unused))" if GCC >=2.8 is used
At least GCC 2.7.2 doesn't support this attribute.
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/*
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* ngIRCd -- The Next Generation IRC Daemon
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* Copyright (c)2001-2005 Alexander Barton (alex@barton.de)
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* Copyright (c)2001-2010 Alexander Barton (alex@barton.de)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* (at your option) any later version.
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* Please read the file COPYING, README and AUTHORS for more information.
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*
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* $Id: portab.h,v 1.22 2005/07/31 20:13:11 alex Exp $
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*
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* Portability functions and declarations (header for libngbportab).
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*/
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@ -48,7 +46,7 @@
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/* compiler features */
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#if (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7))
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#if (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 7))
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# define PUNUSED(x) __attribute__ ((unused)) x
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# define UNUSED __attribute__ ((unused))
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#else
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