--- CMakeLists.txt.orig	2026-03-23 08:45:44 UTC
+++ CMakeLists.txt
@@ -252,7 +252,7 @@ if(ENABLE_TUNTAP)
 
     elseif(CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
         include(CheckIncludeFile)
-        cm_check_include("net/if_tun.h" HAVE_NET_IF_TUN_H)
+        cm_check_include("net/if.h;net/if_tun.h" HAVE_NET_IF_TUN_H)
         if(HAVE_NET_IF_TUN_H)
             add_definitions(-DHAVE_TUNTAP=1)
         else()