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91 lines
2.3 KiB
C
91 lines
2.3 KiB
C
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/* @(#)ccomdefs.h 1.12 11/07/21 Copyright 2000-2011 J. Schilling */
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/*
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* Various compiler dependant macros.
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*
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* Copyright (c) 2000-2011 J. Schilling
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*/
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/*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* See the file CDDL.Schily.txt in this distribution for details.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file CDDL.Schily.txt from this distribution.
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*/
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#ifndef _SCHILY_CCOMDEFS_H
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#define _SCHILY_CCOMDEFS_H
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#ifndef _SCHILY_MCONFIG_H
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#include <schily/mconfig.h>
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Compiler-dependent macros to declare that functions take printf-like
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* or scanf-like arguments. They are defined to nothing for versions of gcc
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* that are not known to support the features properly (old versions of gcc-2
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* didn't permit keeping the keywords out of the application namespace).
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*/
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#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7) || \
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defined(NO_PRINTFLIKE)
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#define __printflike__(fmtarg, firstvararg)
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#define __printf0like__(fmtarg, firstvararg)
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#define __scanflike__(fmtarg, firstvararg)
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#else /* We found GCC that supports __attribute__ */
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#define __printflike__(fmtarg, firstvararg) \
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__attribute__((__format__(__printf__, fmtarg, firstvararg)))
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#define __printf0like__(fmtarg, firstvararg) \
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__attribute__((__format__(__printf0__, fmtarg, firstvararg)))
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/*
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* FreeBSD GCC implements printf0 that allows the format string to
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* be a NULL pointer.
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*/
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#if __FreeBSD_cc_version < 300001
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#undef __printf0like__
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#define __printf0like__ __printflike__
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#endif
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#define __scanflike__(fmtarg, firstvararg) \
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__attribute__((__format__(__scanf__, fmtarg, firstvararg)))
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#endif /* GNUC */
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#if __GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ > 2
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/* GCC-3.3 or more */
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/* CSTYLED */
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#define UConst __attribute__ ((__used__)) const
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#else /* less than GNUC 3.3 */
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#define UConst const
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#endif /* less than GNUC 3.3 */
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#ifdef __PCC__
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/*
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* Hack until pcc supports __attribute__ ((__used__))
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*/
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#ifdef UConst
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#undef UConst
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#define UConst const
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#endif
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SCHILY_CCOMDEFS_H */
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