From d9d7b76c5df7ba063270a9431ad40672c04f109f Mon Sep 17 00:00:00 2001
From: Arne Welzel <arne.welzel@corelight.com>
Date: Wed, 22 Feb 2023 12:15:44 +0100
Subject: [PATCH] af_packet: Add guarded zeek/zeek-version.h include.

With zeek/zeek#2802, zeek-config.h will not provide ZEEK_VERSION_NUMBER
when a plugin is compiled as a builtin/static plugin into Zeek. This is
done to avoid tree-wide ccache busting when just the version changes.
---
 src/iosource/af_packet/src/AF_Packet.cc | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/iosource/af_packet/src/AF_Packet.cc b/src/iosource/af_packet/src/AF_Packet.cc
index 387c1da646..ad27e8e9f4 100644
--- a/src/iosource/af_packet/src/AF_Packet.cc
+++ b/src/iosource/af_packet/src/AF_Packet.cc
@@ -1,5 +1,12 @@
 #include "zeek/zeek-config.h"
 
+// Starting with Zeek 6.0, zeek-config.h does not provide the
+// ZEEK_VERSION_NUMBER macro anymore when compiling a included
+// plugin. Use the new zeek/zeek-version.h header if it exists.
+#if __has_include("zeek/zeek-version.h")
+#include "zeek/zeek-version.h"
+#endif
+
 #include "AF_Packet.h"
 #include "RX_Ring.h"