From 05f16803604fc53d4931cf9481be947a26cc2007 Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Tue, 20 Aug 2019 14:24:27 +0200
Subject: [PATCH] work around to fix build failure with clang 3.4

---
 src/App/PropertyExpressionEngine.cpp | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/src/App/PropertyExpressionEngine.cpp b/src/App/PropertyExpressionEngine.cpp
index 68001e43ce..1e2ede8822 100644
--- a/src/App/PropertyExpressionEngine.cpp
+++ b/src/App/PropertyExpressionEngine.cpp
@@ -810,7 +810,11 @@ Property *PropertyExpressionEngine::CopyOnImportExternal(
 {
     std::unique_ptr<PropertyExpressionEngine>  engine;
     for(auto it=expressions.begin();it!=expressions.end();++it) {
+#ifdef BOOST_NO_CXX11_SMART_PTR
+        boost::shared_ptr<Expression> expr(it->second.expression->importSubNames(nameMap).release());
+#else
         boost::shared_ptr<Expression> expr(it->second.expression->importSubNames(nameMap));
+#endif
         if(!expr && !engine) 
             continue;
         if(!engine) {
@@ -834,7 +838,11 @@ Property *PropertyExpressionEngine::CopyOnLabelChange(App::DocumentObject *obj,
 {
     std::unique_ptr<PropertyExpressionEngine>  engine;
     for(auto it=expressions.begin();it!=expressions.end();++it) {
+#ifdef BOOST_NO_CXX11_SMART_PTR
+        boost::shared_ptr<Expression> expr(it->second.expression->updateLabelReference(obj,ref,newLabel).release());
+#else
         boost::shared_ptr<Expression> expr(it->second.expression->updateLabelReference(obj,ref,newLabel));
+#endif
         if(!expr && !engine) 
             continue;
         if(!engine) {
@@ -858,8 +866,13 @@ Property *PropertyExpressionEngine::CopyOnLinkReplace(const App::DocumentObject
 {
     std::unique_ptr<PropertyExpressionEngine>  engine;
     for(auto it=expressions.begin();it!=expressions.end();++it) {
+#ifdef BOOST_NO_CXX11_SMART_PTR
+        boost::shared_ptr<Expression> expr(
+                it->second.expression->replaceObject(parent,oldObj,newObj).release());
+#else
         boost::shared_ptr<Expression> expr(
                 it->second.expression->replaceObject(parent,oldObj,newObj));
+#endif
         if(!expr && !engine) 
             continue;
         if(!engine) {
@@ -891,8 +904,13 @@ void PropertyExpressionEngine::setExpressions(
         std::map<App::ObjectIdentifier, App::ExpressionPtr> &&exprs)
 {
     AtomicPropertyChange signaller(*this);
+#ifdef BOOST_NO_CXX11_SMART_PTR
+    for(auto &v : exprs)
+        setValue(v.first,boost::shared_ptr<Expression>(v.second.release()));
+#else
     for(auto &v : exprs)
         setValue(v.first,std::move(v.second));
+#endif
 }
 
 void PropertyExpressionEngine::onRelabeledDocument(const App::Document &doc)