$NetBSD: patch-aq,v 1.4 2012/01/19 19:43:57 drochner Exp $

--- sysdeps/common/fsusage.c.orig	2011-07-24 19:13:56.000000000 +0000
+++ sysdeps/common/fsusage.c
@@ -279,7 +279,7 @@ glibtop_get_fsusage_s (glibtop *server, 
     return;
 
 #if (defined(sun) || defined(__sun)) && (defined(__SVR4) || defined(__svr4__)) \
-	|| defined(__FreeBSD__) || defined(__OpenBSD__)
+	|| defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
   /* Solaris but not SunOS and FreeBSD */
   buf->block_size = fsd.f_frsize;
 #else