unistr/*, uniconv/*: Fix undefined behaviour. Reported by Jeffrey Walton <noloader@gmail.com>. * lib/unistr/u-cpy.h (FUNC): Don't invoke memcpy with a zero size. * lib/unistr/u-cpy-alloc.h (FUNC): Likewise. * lib/uniconv/u8-conv-from-enc.c (u8_conv_from_encoding): Likewise. * lib/uniconv/u8-conv-to-enc.c (u8_conv_to_encoding): Likewise.

/* Wrapper to implement ANSI C's atexit using SunOS's on_exit. */
/* This function is in the public domain.  --Mike Stump. */

#include <config.h>

int
atexit (void (*f) (void))
{
  /* If the system doesn't provide a definition for atexit, use on_exit
     if the system provides that.  */
  on_exit (f, 0);
  return 0;
}