https://github.com/torvalds/linux
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Tip revision: bfa76d49576599a4b9f9b7a71f23d73d6dcff735 authored by Linus Torvalds on 09 February 2015, 02:54:22 UTC
Linux 3.19
Tip revision: bfa76d4
compiler-gcc3.h
#ifndef __LINUX_COMPILER_H
#error "Please don't include <linux/compiler-gcc3.h> directly, include <linux/compiler.h> instead."
#endif

#if GCC_VERSION < 30200
# error Sorry, your compiler is too old - please upgrade it.
#endif

#if GCC_VERSION >= 30300
# define __used			__attribute__((__used__))
#else
# define __used			__attribute__((__unused__))
#endif

#if GCC_VERSION >= 30400
#define __must_check		__attribute__((warn_unused_result))
#endif

#ifdef CONFIG_GCOV_KERNEL
# if GCC_VERSION < 30400
#   error "GCOV profiling support for gcc versions below 3.4 not included"
# endif /* __GNUC_MINOR__ */
#endif /* CONFIG_GCOV_KERNEL */
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