--- configure.orig	2010-12-25 11:50:49.000000000 +0100
+++ configure	2010-12-29 11:48:57.440273960 +0100
@@ -16398,7 +16398,7 @@
 _ACEOF
 
 else
-    arch="${target_cpu}-${target_os}"
+    arch="${target_os}"
     cat >>confdefs.h <<_ACEOF
 #define RUBY_PLATFORM "${arch}"
 _ACEOF