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ELLIOTTCABLE/gist:846919

Created February 28, 2011 04:02
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Using LLVM/clang’s __has_attribute() macro
Raw
gistfile1.c
# if !defined(__has_attribute)
# define has_no_has_attribute
# define __has_attribute(x) 0
# endif //!defined(__has_attribute)
# if __has_attribute(constructor)
# define __constructor __attribute__((constructor))
# endif //__has_attribute(constructor)
# if __has_attribute(packed)
# define __packed __attribute__((packed))
# endif //__has_attribute(packed)
# if defined(has_no_has_attribute)
# undef has_no_has_attribute
# undef __has_attribute
# endif //!defined(__has_attribute)
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