Add __PRAGMA_WARNING for inserting warnings.
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/*******************************************************************************
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/*******************************************************************************
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Copyright(C) Jonas 'Sortie' Termansen 2011.
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Copyright(C) Jonas 'Sortie' Termansen 2011, 2012, 2013.
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This file is part of the Sortix C Library.
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This file is part of the Sortix C Library.
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#ifndef _FEATURES_H
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#ifndef _FEATURES_H
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#define _FEATURES_H 1
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#define _FEATURES_H 1
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/* Support macro to ease testing the compiler version. */
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#define __GCC_PREREQ(gcc_major, gcc_minor) \
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(((gcc_major) == __GNUC__ && (gcc_minor) >= __GNUC_MINOR__) || \
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((gcc_major) < __GNUC__))
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/* Preprocessor trick to turn anything into a string. */
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#define __STRINGIFY(x) #x
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/* Issue warning when this is used, except in defines, where the warning is
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inserted whenever the macro is expanded. This can be used to deprecated
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macros - and it happens on preprocessor level - so it shouldn't change any
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semantics of any code that uses such a macro. The argument msg should be a
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string that contains the warning. */
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#define __PRAGMA_WARNING(msg) _Pragma(__STRINGIFY(GCC warning msg))
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/* C++ needs to know that types and declarations are C, not C++. */
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/* C++ needs to know that types and declarations are C, not C++. */
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#ifdef __cplusplus
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#ifdef __cplusplus
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#define __BEGIN_DECLS extern "C" {
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#define __BEGIN_DECLS extern "C" {
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