diff --git a/ChangeLog b/ChangeLog
index efb12b49c7d85c6550e5cc7394b4688178b8e84d..c12754fc820bd31e3e5d37cdce0551af23f8f97c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Mon Nov  6 14:19:35 2000  Christopher Faylor <cgf@cygnus.com>
+
+	* config.sub: Add support for Sun Chorus
+
 2000-10-31  Nick Clifton  <nickc@redhat.com>
 
 	* MAINTAINERS: Rename <name>@cygnus.com addresses to
diff --git a/config.sub b/config.sub
index 9b67fb41132115b7f02d9bc3d9d608e7c6b229b0..af79d70a907630e0131336540d74f3a238bd31f4 100755
--- a/config.sub
+++ b/config.sub
@@ -145,6 +145,14 @@ case $os in
 		os=-vxworks
 		basic_machine=$1
 		;;
+	-chorusos*)
+		os=-chorusos
+		basic_machine=$1
+		;;
+ 	-chorusrdb)
+ 		os=-chorusrdb
+		basic_machine=$1
+ 		;;
 	-hiux*)
 		os=-hiuxwe2
 		;;
@@ -988,6 +996,7 @@ case $os in
 	      | -lynxos* | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
 	      | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
 	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
+	      | -chorusos* | -chorusrdb* \
 	      | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
 	      | -mingw32* | -linux-gnu* | -uxpv* | -beos* | -mpeix* | -udk* \
 	      | -interix* | -uwin* | -rhapsody* | -darwin* | -opened* \