ref: 9ca0eeaaed1dd8a9ced7e13a560d12fd9e7ac494
dir: /libc/runestrdup.c/
#include <u.h>
#include <libc.h>
Rune*
runestrdup(Rune *s) 
{  
	Rune *ns;
	ns = malloc(sizeof(Rune)*(runestrlen(s) + 1));
	if(ns == 0)
		return 0;
	return runestrcpy(ns, s);
}