weakref.h

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#ifndef RBIMPL_ATTR_WEAKREF_H                        /*-*-C++-*-vi:se ft=cpp:*/
#define RBIMPL_ATTR_WEAKREF_H
#include "ruby/internal/has/attribute.h"

#if RBIMPL_HAS_ATTRIBUTE(weakref)
# define RBIMPL_ATTR_WEAKREF(sym) __attribute__((__weakref__(# sym)))
#else
# define RBIMPL_ATTR_WEAKREF(sym) /* void */
#endif
 
#endif /* RBIMPL_ATTR_WEAKREF_H */