From 12787f5936c79b56b24ffe0a92f4370804070223 Mon Sep 17 00:00:00 2001
From: Bernd Kuhls <bernd.kuhls@t-online.de>
Date: Thu, 7 Nov 2019 21:41:34 +0100
Subject: [PATCH] Fix musl build

Fixes
src/trace-tcp.c:67:24: error: 'TH_SYN' undeclared (first use in this function); did you mean 'TH_CWR'?
  packet->th.th_flags = TH_SYN | (ecn ? (TH_ECE | TH_CWR) : 0);

Musl guards TH_SYN with if defined(_GNU_SOURCE):
https://git.musl-libc.org/cgit/musl/tree/include/netinet/tcp.h#n82

Patch sent via email to upstream.

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
---
 src/trace-tcp.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/trace-tcp.c b/src/trace-tcp.c
index 5aba9d4..1b367ae 100644
--- a/src/trace-tcp.c
+++ b/src/trace-tcp.c
@@ -21,7 +21,6 @@
 # include <config.h>
 #endif
 
-#undef _GNU_SOURCE
 #define _DEFAULT_SOURCE 1
 
 #include <string.h>
-- 
2.20.1