--- base-target-features.lisp-expr.orig	2009-12-24 10:24:02.000000000 +0100
+++ base-target-features.lisp-expr	2010-02-01 10:39:28.000000000 +0100
@@ -219,7 +219,7 @@
  ;; As of SBCL 1.0.33.26, threads are part of the default build on
  ;; x86oid Linux. Other platforms that support them include
  ;; x86oid Darwin, FreeBSD, and Solaris.
- ; :sb-thread
+:sb-thread
 
  ;; lutex support
  ;;
@@ -229,7 +229,7 @@
  ;; allows for sb-thread support on x86 OS X, Solaris and
  ;; FreeBSD.
  ;;
- ; :sb-lutex
+:sb-lutex
 
  ;; On some operating systems the FS segment register (used for SBCL's
  ;; thread local storage) is not reliably preserved in signal
@@ -406,4 +406,5 @@
  ;; (No others are supported by SBCL as of 1.0.8, but :hpux or :irix
  ;; support could be ported from CMU CL if anyone is sufficiently
  ;; motivated to do so.)
+:darwin
  )