tools/MetaMake/compiler.h

   1 #ifndef __COMPILER_H
   2 #define __COMPILER_H
   3
   4 #if defined __GNUC__ && defined __GNUC_MINOR__
   5 #    define __GNUC_PREREQ(maj, min) \
   6          ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
   7 #else
   8 #    define __GNUC_PREREQ(maj, min) 0
   9 #endif
  10
  11 #if __GNUC_PREREQ(3,3)
  12 #    define __mayalias  __attribute__((__may_alias__))
  13 #else
  14 #    define __mayalias
  15 #endif
  16
  17 #endif