It turns out we can use these defines here.

diff --git a/src/if.h b/src/if.h
index b8dd1a0c65ec99c12ca6773952832ae5de582583..ac5c5721a9e2172b31820d2ebcad6d52abdb2fec 100644 (file)
--- a/src/if.h
+++ b/src/if.h
@@ -127,7 +127,9 @@ struct priv {
 #ifdef INET6
        int pf_inet6_fd;
 #endif
-       int pf_link_fd; /* NetBSD only, but hard to define for here */
+#if defined(SIOCALIFADDR) && defined(IFLR_ACTIVE) /*NetBSD */
+       int pf_link_fd;
+#endif
 };
 #endif
 #ifdef __linux__