From d37d592f5b063f0e05526d7a14267594eceea92d Mon Sep 17 00:00:00 2001
From: michael-grunder <michael.grunder@gmail.com>
Date: Wed, 31 May 2023 11:15:36 -0700
Subject: [PATCH] Explicitly set errno to ENOTSUP on unsupported OS's

---
 net.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net.c b/net.c
index 3968acc..1e01638 100644
--- a/net.c
+++ b/net.c
@@ -234,6 +234,7 @@ int redisContextSetTcpUserTimeout(redisContext *c, unsigned int timeout) {
     res = setsockopt(c->fd, IPPROTO_TCP, TCP_USER_TIMEOUT, &timeout, sizeof(timeout));
 #else
     res = -1;
+    errno = ENOTSUP;
     (void)timeout;
 #endif
     if (res == -1) {