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bootloader/u-boot_2015_04/include/linux/compiler-gcc3.h 635 Bytes
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  #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 */