From: Rich Felker <dalias@aerifal.cx>
Date: Fri, 30 Aug 2013 21:06:17 +0000 (-0400)
Subject: only expose struct tcphdr under _GNU_SOURCE
X-Git-Tag: v0.9.13~2
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=da19f88659c12f00939945d4d3fbb1a48bac7e7e;p=oweals%2Fmusl.git

only expose struct tcphdr under _GNU_SOURCE

the BSD and GNU versions of this structure differ, so exposing it in
the default _BSD_SOURCE profile is possibly problematic. both versions
could be simultaneously supported with anonymous unions if needed in
the future, but for now, just omitting it except under _GNU_SOURCE
should be safe.
---

diff --git a/include/netinet/tcp.h b/include/netinet/tcp.h
index b8c79349..8266f21d 100644
--- a/include/netinet/tcp.h
+++ b/include/netinet/tcp.h
@@ -31,8 +31,10 @@
 #define SOL_TCP 6
 #include <sys/types.h>
 #include <sys/socket.h>
-#include <endian.h>
+#endif
 
+#ifdef _GNU_SOURCE
+#include <endian.h>
 struct tcphdr
 {
 	u_int16_t source;