$NetBSD: patch-na,v 1.1 2007/10/10 11:15:13 rillig Exp $

--- Modules/mmapmodule.c.orig	2004-06-01 13:00:16.000000000 +0000
+++ Modules/mmapmodule.c	2007-10-10 11:07:50.000000000 +0000
@@ -428,6 +428,10 @@ mmap_resize_method(mmap_object *self,
 	} else {
 		void *newmap;
 
+#if defined(__NetBSD__)
+#  define mremap(a, b, c, d) (mremap)((a), (b), NULL, (c), (d))
+#endif
+
 #ifdef MREMAP_MAYMOVE
 		newmap = mremap(self->data, self->size, new_size, MREMAP_MAYMOVE);
 #else