From d26faa3186bef484140ca1470c153945f1660ff6 Mon Sep 17 00:00:00 2001
From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Wed, 18 Jun 2025 10:34:06 +0900
Subject: [PATCH] missing_network: IPPROTO_MPTCP is already defined in
 linux/in.h

And the header is already included through (our implementation of)
netinet/in.h, hence we can safely drop the definition here.
---
 src/basic/missing_network.h | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/src/basic/missing_network.h b/src/basic/missing_network.h
index 1ece7101fd4..450c64bff0c 100644
--- a/src/basic/missing_network.h
+++ b/src/basic/missing_network.h
@@ -3,11 +3,6 @@
 
 #include <netinet/in.h> /* IWYU pragma: export */
 
-/* linux/in.h or netinet/in.h (since glibc-2.32) */
-#ifndef IPPROTO_MPTCP
-#define IPPROTO_MPTCP 262
-#endif
-
 /* Not exposed but defined at include/net/ip.h */
 #ifndef IPV4_MIN_MTU
 #define IPV4_MIN_MTU 68
-- 
2.47.3