diff --git a/apps/opencs/model/doc/document.cpp b/apps/opencs/model/doc/document.cpp
index 23a47b313..6dc361c1e 100644
--- a/apps/opencs/model/doc/document.cpp
+++ b/apps/opencs/model/doc/document.cpp
@@ -1,6 +1,7 @@
 #include "document.hpp"
 
 #include <cassert>
+#include <iostream>
 
 #include <boost/filesystem.hpp>
 
diff --git a/apps/openmw/mwmechanics/levelledlist.hpp b/apps/openmw/mwmechanics/levelledlist.hpp
index 5d9e29118..ad0677067 100644
--- a/apps/openmw/mwmechanics/levelledlist.hpp
+++ b/apps/openmw/mwmechanics/levelledlist.hpp
@@ -8,6 +8,8 @@
 #include "../mwbase/environment.hpp"
 #include "../mwmechanics/creaturestats.hpp"
 
+#include <iostream>
+
 namespace MWMechanics
 {
 
diff --git a/apps/openmw/mwrender/animation.cpp b/apps/openmw/mwrender/animation.cpp
index 872740d74..f1fcce5f7 100644
--- a/apps/openmw/mwrender/animation.cpp
+++ b/apps/openmw/mwrender/animation.cpp
@@ -1,5 +1,7 @@
 #include "animation.hpp"
 
+#include <iostream>
+
 #include <OgreSkeletonManager.h>
 #include <OgreSkeletonInstance.h>
 #include <OgreEntity.h>
diff --git a/apps/openmw/mwrender/occlusionquery.cpp b/apps/openmw/mwrender/occlusionquery.cpp
index 92a49acc0..c228a0160 100644
--- a/apps/openmw/mwrender/occlusionquery.cpp
+++ b/apps/openmw/mwrender/occlusionquery.cpp
@@ -1,5 +1,7 @@
 #include "occlusionquery.hpp"
 
+#include <iostream>
+
 #include <OgreRenderSystem.h>
 #include <OgreRoot.h>
 #include <OgreBillboardSet.h>
diff --git a/apps/openmw/mwrender/renderingmanager.cpp b/apps/openmw/mwrender/renderingmanager.cpp
index 23edb3a7f..157265c96 100644
--- a/apps/openmw/mwrender/renderingmanager.cpp
+++ b/apps/openmw/mwrender/renderingmanager.cpp
@@ -1,6 +1,7 @@
 #include "renderingmanager.hpp"
 
 #include <cassert>
+#include <iostream>
 
 #include <OgreRoot.h>
 #include <OgreRenderWindow.h>
diff --git a/apps/openmw/mwstate/statemanagerimp.cpp b/apps/openmw/mwstate/statemanagerimp.cpp
index a3604cc66..cf4f05a4c 100644
--- a/apps/openmw/mwstate/statemanagerimp.cpp
+++ b/apps/openmw/mwstate/statemanagerimp.cpp
@@ -1,6 +1,8 @@
 
 #include "statemanagerimp.hpp"
 
+#include <iostream>
+
 #include <components/esm/esmwriter.hpp>
 #include <components/esm/esmreader.hpp>
 #include <components/esm/cellid.hpp>
diff --git a/apps/openmw/mwworld/containerstore.cpp b/apps/openmw/mwworld/containerstore.cpp
index e330ddaee..7c7470bd1 100644
--- a/apps/openmw/mwworld/containerstore.cpp
+++ b/apps/openmw/mwworld/containerstore.cpp
@@ -1,6 +1,7 @@
 
 #include "containerstore.hpp"
 
+#include <iostream>
 #include <cassert>
 #include <typeinfo>
 #include <stdexcept>
diff --git a/components/bsa/bsa_archive.cpp b/components/bsa/bsa_archive.cpp
index 6574f096b..4cd754f2b 100644
--- a/components/bsa/bsa_archive.cpp
+++ b/components/bsa/bsa_archive.cpp
@@ -45,7 +45,7 @@ static char strict_normalize_char(char ch)
 
 static char nonstrict_normalize_char(char ch)
 {
-    return ch == '\\' ? '/' : std::tolower(ch);
+    return ch == '\\' ? '/' : std::tolower(ch,std::locale());
 }
 
 template<typename T1, typename T2>
diff --git a/components/nif/niffile.hpp b/components/nif/niffile.hpp
index d70124263..87e46b234 100644
--- a/components/nif/niffile.hpp
+++ b/components/nif/niffile.hpp
@@ -37,6 +37,7 @@
 #include <vector>
 #include <cassert>
 #include <typeinfo>
+#include <iostream>
 
 #include <boost/weak_ptr.hpp>
 #include <boost/shared_ptr.hpp>
diff --git a/extern/sdl4ogre/sdlinputwrapper.cpp b/extern/sdl4ogre/sdlinputwrapper.cpp
index f65dfb376..0f2008e99 100644
--- a/extern/sdl4ogre/sdlinputwrapper.cpp
+++ b/extern/sdl4ogre/sdlinputwrapper.cpp
@@ -4,6 +4,7 @@
 #include <OgrePlatform.h>
 #include <OgreRoot.h>
 
+#include <iostream>
 
 namespace SFO
 {
diff --git a/extern/shiny/Platforms/Ogre/OgreGpuProgram.cpp b/extern/shiny/Platforms/Ogre/OgreGpuProgram.cpp
index e71854019..8b819f6ef 100644
--- a/extern/shiny/Platforms/Ogre/OgreGpuProgram.cpp
+++ b/extern/shiny/Platforms/Ogre/OgreGpuProgram.cpp
@@ -8,6 +8,8 @@
 #include <OgreGpuProgramManager.h>
 #include <OgreVector4.h>
 
+#include <iostream>
+
 namespace sh
 {
 	OgreGpuProgram::OgreGpuProgram(
diff --git a/libs/openengine/bullet/physic.hpp b/libs/openengine/bullet/physic.hpp
index e37caee38..a806c2f3b 100644
--- a/libs/openengine/bullet/physic.hpp
+++ b/libs/openengine/bullet/physic.hpp
@@ -8,6 +8,7 @@
 #include <map>
 #include "BulletShapeLoader.h"
 #include "BulletCollision/CollisionShapes/btScaledBvhTriangleMeshShape.h"
+#include <boost/shared_ptr.hpp>