Index: boost/thread/win32/thread.hpp
===================================================================
--- boost/thread/win32/thread.hpp	(revision 45484)
+++ boost/thread/win32/thread.hpp	(working copy)
@@ -214,7 +214,7 @@
         }
 #else
         template<typename F>
-        static inline detail::thread_data_ptr make_thread_info(F f)
+        static inline detail::thread_data_base* make_thread_info(F f)
         {
             return detail::heap_new<thread_data<F> >(f);
         }
@@ -228,6 +228,8 @@
         thread();
         ~thread();
 
+        void __boost_workaround_to_set_thread_info(detail::thread_data_base* tinfo);
+
 #ifdef BOOST_HAS_RVALUE_REFS
         template <class F>
         thread(F&& f):
@@ -237,9 +239,10 @@
         }
 #else
         template <class F>
-        explicit thread(F f):
-            thread_info(make_thread_info(f))
+        explicit thread(F f)
         {
+            detail::thread_data_base* const tinfo = make_thread_info(f);
+            __boost_workaround_to_set_thread_info(tinfo);
             start_thread();
         }
 
Index: libs/thread/src/win32/thread.cpp
===================================================================
--- libs/thread/src/win32/thread.cpp	(revision 45484)
+++ libs/thread/src/win32/thread.cpp	(working copy)
@@ -189,6 +189,11 @@
     thread::thread()
     {}
 
+    void thread::__boost_workaround_to_set_thread_info(detail::thread_data_base* const tinfo)
+    {
+        thread_info = tinfo;
+    }
+
     void thread::start_thread()
     {
         uintptr_t const new_thread=_beginthreadex(0,0,&thread_start_function,thread_info.get(),CREATE_SUSPENDED,&thread_info->id);