diff --git a/components/fallback/fallback.cpp b/components/fallback/fallback.cpp
index 9b058f104..11a577a45 100644
--- a/components/fallback/fallback.cpp
+++ b/components/fallback/fallback.cpp
@@ -1,5 +1,8 @@
 #include "fallback.hpp"
 
+#include <boost/lexical_cast.hpp>
+
+
 namespace Fallback
 {
     bool stob(std::string const& s) {
@@ -18,14 +21,16 @@ namespace Fallback
         }
         return it->second;
     }
+
     float Map::getFallbackFloat(const std::string& fall) const
     {
         std::string fallback=getFallbackString(fall);
         if(fallback.empty())
             return 0;
         else
-            return std::stof(fallback);
+            return boost::lexical_cast<float>(fallback);
     }
+
     int Map::getFallbackInt(const std::string& fall) const
     {
         std::string fallback=getFallbackString(fall);
@@ -43,6 +48,7 @@ namespace Fallback
         else
             return stob(fallback);
     }
+
     osg::Vec4f Map::getFallbackColour(const std::string& fall) const
     {
         std::string sum=getFallbackString(fall);
diff --git a/components/sceneutil/lightmanager.cpp b/components/sceneutil/lightmanager.cpp
index bc042f7d6..018abeefc 100644
--- a/components/sceneutil/lightmanager.cpp
+++ b/components/sceneutil/lightmanager.cpp
@@ -209,13 +209,21 @@ namespace SceneUtil
         mLights.push_back(l);
     }
 
+    /* similar to the boost::hash_combine */
+    template <class T>
+    inline void hash_combine(std::size_t& seed, const T& v)
+    {
+        std::hash<T> hasher;
+        seed ^= hasher(v) + 0x9e3779b9 + (seed<<6) + (seed>>2);
+    }
+
     osg::ref_ptr<osg::StateSet> LightManager::getLightListStateSet(const LightList &lightList, unsigned int frameNum)
     {
+
         // possible optimization: return a StateSet containing all requested lights plus some extra lights (if a suitable one exists)
         size_t hash = 0;
         for (unsigned int i=0; i<lightList.size();++i)
-            hash = hash ^ (lightList[i]->mLightSource->getId() << 1); // or use boost::hash_combine
-            // original: boost::hash_combine(hash, lightList[i]->mLightSource->getId());
+            hash_combine(hash, lightList[i]->mLightSource->getId());
 
         LightStateSetMap& stateSetCache = mStateSetCache[frameNum%2];
 
diff --git a/components/widgets/numericeditbox.cpp b/components/widgets/numericeditbox.cpp
index d59deb378..828a84589 100644
--- a/components/widgets/numericeditbox.cpp
+++ b/components/widgets/numericeditbox.cpp
@@ -1,3 +1,5 @@
+#include <stdexcept>
+
 #include "numericeditbox.hpp"
 
 namespace Gui
@@ -36,7 +38,11 @@ namespace Gui
                 setCaption(MyGUI::utility::toString(mValue));
             }
         }
-        catch (...)
+        catch (std::invalid_argument)
+        {
+            setCaption(MyGUI::utility::toString(mValue));
+        }
+        catch (std::out_of_range)
         {
             setCaption(MyGUI::utility::toString(mValue));
         }