Clang compile fixes

include/openspace/util/camera.h

@@ -29,7 +29,7 @@
 
 // open space includes
 #include <openspace/util/powerscaledcoordinate.h>
-//#include <openspace/util/syncbuffer.h>
+#include <openspace/util/syncbuffer.h>
 #include <openspace/rendering/renderengine.h>
 
 // glm includes
@@ -38,6 +38,7 @@
 #include <glm/gtc/type_ptr.hpp>
 #include <glm/gtc/quaternion.hpp>
 
+
 namespace openspace {
     class SyncBuffer;
 

modules/onscreengui/include/guipropertycomponent.h

@@ -28,6 +28,7 @@
 #include <modules/onscreengui/include/guicomponent.h>
 
 #include <functional>
+#include <string>
 #include <vector>
 
 namespace openspace {

src/engine/openspaceengine.cpp

@@ -447,14 +447,14 @@ bool OpenSpaceEngine::initialize() {
 
     OsEng.gui()._screenSpaceProperty.setSource(
         [&]() {
-            auto& ssr = renderEngine().screenSpaceRenderables();
+            const auto& ssr = renderEngine().screenSpaceRenderables();
             return std::vector<properties::PropertyOwner*>(ssr.begin(), ssr.end());
         }
     );
 
     OsEng.gui()._property.setSource(
         [&]() {
-            auto& nodes = renderEngine().scene()->allSceneGraphNodes();
+            const auto& nodes = renderEngine().scene()->allSceneGraphNodes();
             return std::vector<properties::PropertyOwner*>(nodes.begin(), nodes.end());
         }
     );