$NetBSD$

--- sieve/sievec.c.orig	2009-03-25 23:58:04.000000000 +0000
+++ sieve/sievec.c
@@ -63,6 +63,10 @@
 #include <sys/stat.h>
 #include <fcntl.h>
 
+#ifdef __APPLE__
+struct et_list *_et_list = NULL;
+#endif
+
 /* config.c stuff */
 const int config_need_data = 0;
 
