$NetBSD: patch-config.h.in,v 1.1 2020/05/22 13:45:11 joerg Exp $

--- config.h.in.orig	2020-05-22 12:08:49.505823625 +0000
+++ config.h.in
@@ -791,6 +791,9 @@
 /* Define to 1 if you have the <uvm/uvm.h> header file. */
 #undef HAVE_UVM_UVM_H
 
+/* Define to 1 if you have the <uvm/uvm_extern.h> header file. */
+#undef HAVE_UVM_UVM_EXTERN_H
+
 /* Define to 1 if the system has the type `vaddr_t'. */
 #undef HAVE_VADDR_T