Update util.c Apple OS/X does not define MSG_NOSIGNAL. Use SO_NOSIGPIPE instead
diff --git a/util.c b/util.c
index ba98c8a..3e26521 100644
--- a/util.c
+++ b/util.c
@@ -966,10 +966,12 @@ static enum send_ret __stratum_send(struct pool *pool, char *s, ssize_t len)
FD_SET(sock, &wd);
if (select(sock + 1, NULL, &wd, NULL, &timeout) < 1)
return SEND_SELECTFAIL;
-#ifndef WIN32
- sent = send(pool->sock, s + ssent, len, MSG_NOSIGNAL);
-#else
+#ifdef __APPLE__
+ sent = send(pool->sock, s + ssent, len, SO_NOSIGPIPE);
+#elif WIN32
sent = send(pool->sock, s + ssent, len, 0);
+#else
+ sent = send(pool->sock, s + ssent, len, MSG_NOSIGNAL);
#endif
if (sent < 0) {
if (!sock_blocks())