ref: b76a78c1a1973d62ff32c030e29b3ffcc560e50d 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; }