From eaa486db111bf6dfc9871d548485d495f3b9e919 Mon Sep 17 00:00:00 2001
From: Matthew Flatt <mflatt@racket-lang.org>
Date: Thu, 22 Dec 2016 10:50:27 -0700
Subject: [PATCH] unbreak no-places, no-futures build

---
 racket/src/racket/src/salloc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/racket/src/racket/src/salloc.c b/racket/src/racket/src/salloc.c
index ff0f86f1fc..7f1b1d7633 100644
--- a/racket/src/racket/src/salloc.c
+++ b/racket/src/racket/src/salloc.c
@@ -54,6 +54,8 @@
 # include <windows.h>
 #endif
 
+THREAD_LOCAL_DECL(uintptr_t scheme_os_thread_id);
+
 THREAD_LOCAL_DECL(static void **dgc_array);
 THREAD_LOCAL_DECL(static int *dgc_count);
 THREAD_LOCAL_DECL(static int dgc_size);