linux: IPPROTO_MPTCP requires kernel >= 5.6

george-hopkins · george-hopkins · commit d669ba447a7d · 2020-09-25T11:29:52.000+02:00
diff --git a/libc-test/build.rs b/libc-test/build.rs
@@ -2643,7 +2643,8 @@ fn test_linux(target: &str) {
             "VMADDR_CID_RESERVED" => true,
 
             // Require Linux kernel 5.6:
-            "VMADDR_CID_LOCAL" => true,
+            | "IPPROTO_MPTCP"
+            | "VMADDR_CID_LOCAL" => true,
 
             // Defined in kernel headers but musl removes it; need musl 1.2 for definition in musl
             // headers.
