BUILD: tcp: do not include netinet/ip.h for IP_TTL
On OpenBSD, netinet/ip.h fails unless in_systm.h is included. This
include was added by the silent-drop feature introduced with commit
2d392c2 ("MEDIUM: tcp: add new tcp action "silent-drop"") in 1.6-dev6,
but we don't need it, IP_TTL is defined in netinet/in.h, so let's drop
this useless include.
This fix needs to be backported to 1.6.
diff --git a/src/proto_tcp.c b/src/proto_tcp.c
index f7610df..797ddcb 100644
--- a/src/proto_tcp.c
+++ b/src/proto_tcp.c
@@ -31,7 +31,6 @@
#include <netinet/tcp.h>
#include <netinet/in.h>
-#include <netinet/ip.h>
#include <common/cfgparse.h>
#include <common/compat.h>