ref: ca2fa9596b5d0d893be28c6e8fd8a52a89a0c3c6
dir: /sys/src/ape/lib/ap/plan9/link.c/
#include <unistd.h>
#include <errno.h>
/*
* BUG: LINK_MAX==1 isn't really allowed
*/
int
link(const char *name1, const char *name2)
{
errno = EMLINK;
return -1;
}