SDL_net: Fix a -Wsign-compare warning

SDL Commits
1 
From ebba9c73b5e6fedf00ae7626b6c3df03896336b4 Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Sun, 18 Jan 2026 05:11:10 +0300
Subject: [PATCH] Fix a -Wsign-compare warning

---
 src/SDL_net.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/SDL_net.c b/src/SDL_net.c
index 46aae63..0f34483 100644
--- a/src/SDL_net.c
+++ b/src/SDL_net.c
@@ -602,7 +602,7 @@ static void RefreshInterfaces(void)  // LINUX/BSD VERSION
     req.header.nlmsg_len = NLMSG_LENGTH(sizeof (req.msg));
     req.msg.ifa_family = AF_UNSPEC;
 
-    if (send(sock, &req, req.header.nlmsg_len, 0) != req.header.nlmsg_len) {
+    if (send(sock, &req, req.header.nlmsg_len, 0) != (Sint32)req.header.nlmsg_len) {
         close(sock);
         return;  // oh well.
     }