mirror of https://github.com/ventoy/Ventoy
54 lines
1.6 KiB
C
54 lines
1.6 KiB
C
/* compiler.h - macros for various compiler features */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2002,2003,2005,2006,2007,2008,2009,2010,2014 Free Software Foundation, Inc.
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*
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* GRUB 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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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef GRUB_COMPILER_HEADER
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#define GRUB_COMPILER_HEADER 1
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/* GCC version checking borrowed from glibc. */
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#if defined(__GNUC__) && defined(__GNUC_MINOR__)
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# define GNUC_PREREQ(maj,min) \
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((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
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#else
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# define GNUC_PREREQ(maj,min) 0
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#endif
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/* Does this compiler support compile-time error attributes? */
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#if GNUC_PREREQ(4,3)
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# define ATTRIBUTE_ERROR(msg) \
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__attribute__ ((__error__ (msg)))
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#else
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# define ATTRIBUTE_ERROR(msg) __attribute__ ((noreturn))
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#endif
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#if GNUC_PREREQ(4,4)
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# define GNU_PRINTF gnu_printf
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#else
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# define GNU_PRINTF printf
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#endif
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#if GNUC_PREREQ(3,4)
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# define WARN_UNUSED_RESULT __attribute__ ((warn_unused_result))
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#else
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# define WARN_UNUSED_RESULT
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#endif
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#define UNUSED __attribute__((__unused__))
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#endif /* ! GRUB_COMPILER_HEADER */
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