Guard IPPROT_MPTCP on Linux only

lucic71 · lucic71 · commit d8d80fd05941 · 2026-05-22T14:40:29.000+01:00
diff --git a/rules/ip/src.cpp b/rules/ip/src.cpp
@@ -16,6 +16,8 @@ int f4() {
   return IPPROTO_IPV6;
 }
 
+#if defined(__linux__)
 int f5() {
   return IPPROTO_MPTCP;
 }
+#endif
