libc_hidden_proto vs __attribute__

[Roland McGrath]

It appears to be `_exit' in particular that is loused up.
Probably because GCC thinks it knows about _exit before it's told.

This test gets the warning, but with -D_exit=loser, it does not.


extern void _exit (int __status) __attribute__ ((__noreturn__));

__typeof (_exit) __GI__exit; __typeof (_exit) _exit __asm__ (""
"__GI__exit") __attribute__ ((visibility ("hidden")));

extern void bar (void) __attribute__ ((noreturn));
void
bar (void)
{
  _exit (0);
}