# define strong_alias(name, aliasname) _strong_alias(name, aliasname)
# define _strong_alias(name, aliasname) \
  extern __typeof (name) aliasname __attribute__ ((alias (#name)));

#define __hidden_proto_hiddenattr(attrs...) \
  __attribute__ ((visibility ("hidden"), ##attrs))

#define __hidden_asmname(name) \
  __hidden_asmname1 (__USER_LABEL_PREFIX__, name)
#define __hidden_asmname1(prefix, name) __hidden_asmname2(prefix, name)
#define __hidden_asmname2(prefix, name) #prefix name

#ifndef FIX
#define __hidden_ver1(local, internal, name) \
  extern __typeof (name) __EI_##name __asm__(__hidden_asmname (#internal)); \
  extern __typeof (name) __EI_##name \
    __attribute__((alias (__hidden_asmname (#local))))
#else
#define __hidden_ver1(local, internal, name) \
  extern __typeof (name) __EI_##name __asm__(__hidden_asmname (#internal)); \
  extern __typeof (name) __EI_##name \
    __attribute__((alias (__hidden_asmname1 (,#local))))
#endif

#define hidden_proto(name, attrs...) \
  __hidden_proto (name, __GI_##name, ##attrs)
#define __hidden_proto(name, internal, attrs...) \
  extern __typeof (name) name __asm__ (__hidden_asmname (#internal)) \
  __hidden_proto_hiddenattr (attrs);
#define libc_hidden_proto(name, attrs...) hidden_proto (name, ##attrs)

#define hidden_def(name)      __hidden_ver1(__GI_##name, name, name);
#define libc_hidden_def(name) hidden_def (name)

int __libc_close(int fd) { return fd; }
strong_alias(__libc_close,close)
libc_hidden_proto(close)
libc_hidden_def(close)