--- configure.orig	2012-04-20 08:49:31.987472765 +0200
+++ configure	2012-04-20 08:49:12.771503821 +0200
@@ -17549,7 +17549,7 @@
 _ACEOF
 
 else
-    arch="${target_cpu}-${target_os}"
+    arch="${target_os}"
     cat >>confdefs.h <<_ACEOF
 #define RUBY_PLATFORM "${arch}"
 _ACEOF