musl - musl - an implementation of the standard library for Linux-based systems

diff --git a/include/netinet/tcp.h b/include/netinet/tcp.h
index 94e54cf3..f0fc1259 100644
--- a/include/netinet/tcp.h
+++ b/include/netinet/tcp.h

@@ -18,9 +18,8 @@

#define TCP_CONGESTION 13

#define TCP_MD5SIG 14

-#define SOL_TCP 6

-

#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)

+#define SOL_TCP 6

#include <sys/types.h>

#include <sys/socket.h>

#endif