$OpenBSD: patch-src_iosource_BPF_Program_cc,v 1.3 2020/02/28 16:48:59 ajacoutot Exp $

error: use of undeclared identifier 'DLT_NFLOG'

Index: src/iosource/BPF_Program.cc
--- src/iosource/BPF_Program.cc.orig
+++ src/iosource/BPF_Program.cc
@@ -105,6 +105,7 @@ bool BPF_Program::Compile(int snaplen, int linktype, c
 	{
 	FreeCode();
 
+#ifndef __OpenBSD__
 	if ( linktype == DLT_NFLOG )
 		{
 		// No-op, NFLOG does not support BPF filters.
@@ -115,6 +116,7 @@ bool BPF_Program::Compile(int snaplen, int linktype, c
 		m_matches_anything = true;
 		return true;
 		}
+#endif
 
 #ifdef LIBPCAP_PCAP_COMPILE_NOPCAP_HAS_ERROR_PARAMETER
 	char my_error[PCAP_ERRBUF_SIZE];
