diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 2dfb62d6551..da887c2e441 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,8 @@
+2005-11-05  Paolo Carlini  <pcarlini@suse.de>
+
+	* configure.host: Add | rs6000 to the cpu_defines_dir switch,
+	consistently with the try_cpu one.
+
 2005-11-05  Paolo Carlini  <pcarlini@suse.de>
 
 	PR libstdc++/22203
diff --git a/libstdc++-v3/configure.host b/libstdc++-v3/configure.host
index f7a71091111..aecdebc55d1 100644
--- a/libstdc++-v3/configure.host
+++ b/libstdc++-v3/configure.host
@@ -130,7 +130,7 @@ esac
 # Set specific CPU overrides for cpu_defines_dir. Most can just use generic.
 # THIS TABLE IS SORTED.  KEEP IT THAT WAY.
 case "${host_cpu}" in
-  powerpc*)
+  powerpc* | rs6000)
     cpu_defines_dir=cpu/powerpc
     ;;
 esac