diff -r 9c03c1a508d8 -r bd86485d966a config/libc/newlib.in
--- a/config/libc/newlib.in	Sun Jan 31 12:50:22 2010 +0100
+++ b/config/libc/newlib.in	Sun Dec 12 22:18:52 2010 +0100
@@ -2,6 +2,7 @@
 # depends on BARE_METAL
 
 config LIBC_newlib
+    select LIBC_SUPPORT_THREADS_NONE
     help
       Newlib is a C library intended for use on embedded systems. It is a
       conglomeration of several library parts, all under free software