Index: src/hlua_fcn.c
--- src/hlua_fcn.c.orig	2018-10-05 13:03:10.000000000 +0200
+++ src/hlua_fcn.c	2018-10-05 17:45:13.050877000 +0200
@@ -1087,7 +1087,8 @@
 			lua_pushboolean(L, 1);
 			return 1;
 		}
-	} else {
+#if defined(AF_INET6) && !defined(__FreeBSD__)
+    } else if (addr1->type === AF_INET6) {
 		int i;
 
 		for (i = 0; i < 16; i += 4) {
@@ -1101,6 +1102,7 @@
 			lua_pushboolean(L, 1);
 			return 1;
 		}
+#endif
 	}
 
 	lua_pushboolean(L, 0);