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      1 #ifndef FIO_COMPILER_GCC3_H
      2 #define FIO_COMPILER_GCC3_H
      3 
      4 #if __GNUC_MINOR__ >= 4
      5 #ifndef __must_check
      6 #define __must_check		__attribute__((warn_unused_result))
      7 #endif
      8 #endif
      9 
     10 #endif
     11