#ifndef HAVE_MEMMOVE
/* for Christophe */
static void *memmove (void *dest, const void *src, size_t n)
{
    char *t, *s;

    if (dest <= src) {
	t = (char *) dest;
	s = (char *) src;
	while (n--)
	    *t++ = *s++;
    } else {
	t = (char *) dest + n;
	s = (char *) src + n;
	while (n--)
	    *--t = *--s;
    }
    return dest;
}
#endif