From 8128603b9b66c9c3f0ffeab8f45c6563abb4436f Mon Sep 17 00:00:00 2001
From: Kevin Tew <tewk@racket-lang.org>
Date: Thu, 7 Jul 2011 17:04:08 -0600
Subject: [PATCH] Fix non-places build

---
 src/racket/src/schpriv.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/racket/src/schpriv.h b/src/racket/src/schpriv.h
index d77c2c960a..ca0ebbcec3 100644
--- a/src/racket/src/schpriv.h
+++ b/src/racket/src/schpriv.h
@@ -3623,7 +3623,9 @@ typedef struct Scheme_Place {
 
 typedef struct Scheme_Place_Object {
   Scheme_Object so;
+#if defined(MZ_USE_PLACES)
   mzrt_mutex *lock;
+#endif
   char die;
   char pbreak;
   void *signal_handle;