diff --git a/ChangeLog b/ChangeLog
index 7affca8..66ab582 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2004-02-11  Ben Elliston  <bje@wasabisystems.com>
+
+	* config.sub (abacus): Add.
+
 2004-02-11  Galit Heller  <Galit.Heller@nsc.com>
 
 	* config.sub: Add support for National Semiconductor CR16C target.
diff --git a/config.sub b/config.sub
index 733c49c..6bc7215 100755
--- a/config.sub
+++ b/config.sub
@@ -363,6 +363,9 @@ case $basic_machine in
 		basic_machine=a29k-amd
 		os=-udi
 		;;
+    	abacus)
+		basic_machine=abacus-unknown
+		;;
 	adobe68k)
 		basic_machine=m68010-adobe
 		os=-scout