#define _GNU_SOURCE
#include <stdlib.h>
#include "libc.h"

static void dummy(char *p, char *r) {}
weak_alias(dummy, __env_change);

int clearenv()
{
	char **e = __environ;
	__environ = 0;
	if (e) while (*e) __env_change(*e++, 0);
	return 0;
}