_IO_funlockfile
# undef _IO_funlockfile
# define _IO_funlockfile(_fp) \
#undef _IO_funlockfile
_IO_funlockfile(_IO_FILE *stream)
# define _IO_funlockfile(_fp) \
# define _IO_funlockfile(_fp) /**/
void _IO_funlockfile() {}
void _IO_funlockfile() {}