diff -Nru dnprogs-2.60/apps/startnet.c dnprogs-2.60+x32/apps/startnet.c
--- dnprogs-2.60/apps/startnet.c	2008-08-20 05:43:58.000000000 -0700
+++ dnprogs-2.60+x32/apps/startnet.c	2013-02-12 12:25:57.000000000 -0800
@@ -12,8 +12,6 @@
 #include <unistd.h>
 #include <sys/socket.h>
 #include <sys/ioctl.h>
-#include <sys/sysctl.h>
-#include <linux/sysctl.h>
 #include <netdnet/dn.h>
 #include <netdnet/dnetdb.h>
 #include <netinet/in.h>
diff -Nru dnprogs-2.60/debian/changelog dnprogs-2.60+x32/debian/changelog
--- dnprogs-2.60/debian/changelog	2012-05-26 02:07:28.000000000 -0700
+++ dnprogs-2.60+x32/debian/changelog	2013-02-12 12:21:39.000000000 -0800
@@ -1,3 +1,10 @@
+dnprogs (2.60+x32) unreleased; urgency=low
+
+  * Switch from using deprecated sysctl(2) to writing to /proc/sys.  This
+    fixes a build failure on x32.
+
+ -- Daniel Schepler <schepler@debian.org>  Tue, 12 Feb 2013 12:21:31 -0800
+
 dnprogs (2.60) unstable; urgency=low
 
   * Fixed lots of Debian things that caused lintian problems and 
diff -Nru dnprogs-2.60/libdnet/setnodename.c dnprogs-2.60+x32/libdnet/setnodename.c
--- dnprogs-2.60/libdnet/setnodename.c	2010-07-08 01:46:42.000000000 -0700
+++ dnprogs-2.60+x32/libdnet/setnodename.c	2013-02-12 12:19:05.000000000 -0800
@@ -19,28 +19,28 @@
 
 #include <sys/types.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <unistd.h>
 #ifdef __NetBSD__
 #include <sys/param.h>
 #endif
-#include <sys/sysctl.h>
 
 #include "netdnet/dn.h"
 
 
 int setnodename(const char *name, size_t len)
 {
-#if defined(SDF_UICPROXY) && defined(CTL_NET) && defined(NET_DECNET) && defined(NET_DECNET_NODE_NAME)
-	int ctlname[3] = { CTL_NET, NET_DECNET, NET_DECNET_NODE_NAME };
-	size_t nospace = 0;
-
-	if (len > 6)
+	FILE* procfile = fopen("/proc/sys/net/decnet/nodename", "w");
+	if (procfile == NULL)
 		return -1;
-
-	return sysctl(ctlname, 3, NULL, &nospace, (void *)name, len);
-#else
-	return -1;
-#endif
+	if (fwrite(name, 1, len, procfile) != len)
+	{
+		fclose(procfile);
+		return -1;
+	}
+	if (fclose(procfile) == EOF)
+		return -1;
+	return 0;
 }