ref: ee5fc884bd37db9cba56d603b8d4e30b0cc78083
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);
}