Ticket #9041: boost-1.54.0-thread-link_atomic.patch

libs/thread/build/has_atomic_flag_lockfree_test.cpp

@@ +1 @@
+// Copyright (c) 2013, Petr Machata, Red Hat Inc.
+//
+// Use modification and distribution are subject to the boost Software
+// License, Version 1.0.  (See http://www.boost.org/LICENSE_1_0.txt).
+
+#include "../../../boost/atomic.hpp"
+#include "../../../boost/static_assert.hpp"
+
+int
+main(int argc, char *argv[])
+{
+  BOOST_STATIC_ASSERT(BOOST_ATOMIC_FLAG_LOCK_FREE);
+  return 0;
+}

libs/thread/build/Jamfile.v2

@@ -36 +36 @@
 import feature ;
 import indirect ;
 import path ;
+import configure ;
 
 project boost/thread
     : source-location ../src
@@ -140 +141 @@
 feature.feature threadapi : pthread win32 : propagated ;
 feature.set-default threadapi : [ default_threadapi ] ;
 
+exe has_atomic_flag_lockfree : ../build/has_atomic_flag_lockfree_test.cpp ;
+
 rule tag ( name : type ? : property-set )
 {
     local result = $(name) ;
@@ -248 +251 @@
 {
     local result ;
 
+    if ! [ configure.builds has_atomic_flag_lockfree
+           : $(properties) : "lockfree boost::atomic_flag" ]
+    {
+        result += <library>/boost/atomic//boost_atomic ;
+    }
+
     if <threadapi>pthread in $(properties)
     {
         result += <define>BOOST_THREAD_POSIX ;