diff --git a/source/graphics/ObjectBase.cpp b/source/graphics/ObjectBase.cpp
index 2eb6b289d2..48ddd9ac03 100644
--- a/source/graphics/ObjectBase.cpp
+++ b/source/graphics/ObjectBase.cpp
@@ -180,8 +180,6 @@ bool CObjectBase::Load(const char* filename)
 									float pos = CStr(ae.Value).ToFloat();
 									anim.m_ActionPos2 = clamp(pos, 0.f, 1.f);
 								}
-								else
-									; // unrecognised element
 							}
 							currentVariant->m_Anims.push_back(anim);
 						}
@@ -200,14 +198,10 @@ bool CObjectBase::Load(const char* filename)
 									prop.m_PropPointName = pe.Value;
 								else if (pe.Name == at_actor)
 									prop.m_ModelName = pe.Value;
-								else
-									; // unrecognised element
 							}
 							currentVariant->m_Props.push_back(prop);
 						}
 					}
-					else
-						; // unrecognised element
 				}
 
 				++currentVariant;
@@ -232,10 +226,6 @@ bool CObjectBase::Load(const char* filename)
 		{
 			m_Material = "art/materials/" + CStr(child.GetText());
 		}
-		else
-			; // unrecognised element
-
-		// TODO: castshadow, etc
 	}
 
 	return true;
diff --git a/source/graphics/Terrain.cpp b/source/graphics/Terrain.cpp
index 48de688d7d..661b3bf4ee 100644
--- a/source/graphics/Terrain.cpp
+++ b/source/graphics/Terrain.cpp
@@ -365,7 +365,7 @@ void CTerrain::Resize(ssize_t size)
 			for (ssize_t n=0;n<size-m_MapSizePatches;n++) {
 				for (ssize_t m=0;m<PATCH_SIZE;m++) {
 					CMiniPatch& src=m_Patches[j*m_MapSizePatches+m_MapSizePatches-1].m_MiniPatches[m][15];
-					for (size_t k=0;k<PATCH_SIZE;k++) {
+					for (ssize_t k=0;k<PATCH_SIZE;k++) {
 						CMiniPatch& dst=newPatches[j*size+m_MapSizePatches+n].m_MiniPatches[m][k];
 						dst.Tex1=src.Tex1;
 						dst.Tex1Priority=src.Tex1Priority;
diff --git a/source/gui/GUIRenderer.cpp b/source/gui/GUIRenderer.cpp
index 5b0962c045..a185cab05b 100644
--- a/source/gui/GUIRenderer.cpp
+++ b/source/gui/GUIRenderer.cpp
@@ -48,9 +48,15 @@ DrawCalls::~DrawCalls()
 	clear();
 }
 
-// Never copy anything (to avoid losing track of who owns various pointers):
+// DrawCalls needs to be copyable, so it can be used in other copyable types.
+// But actually copying data is hard, since we'd need to avoid losing track of
+// who owns various pointers, so instead we just return an empty list.
+// The list should get filled in again (by GUIRenderer::UpdateDrawCallCache)
+// before it's used for rendering. (TODO: Is this class actually used safely
+// in practice?)
 
 DrawCalls::DrawCalls(const DrawCalls&)
+	: std::vector<SDrawCall>()
 {
 }
 
diff --git a/source/gui/GUIRenderer.h b/source/gui/GUIRenderer.h
index a80381d8ef..8a94fd2148 100644
--- a/source/gui/GUIRenderer.h
+++ b/source/gui/GUIRenderer.h
@@ -58,9 +58,10 @@ namespace GUIRenderer
 	public:
 		void clear();
 		DrawCalls();
+		~DrawCalls();
+		// Copy/assignment results in an empty list, not an actual copy
 		DrawCalls(const DrawCalls&);
 		const DrawCalls& operator=(const DrawCalls&);
-		~DrawCalls();
 	};
 }
 
diff --git a/source/network/NetClient.cpp b/source/network/NetClient.cpp
index d384c46d7b..2060f19ed1 100644
--- a/source/network/NetClient.cpp
+++ b/source/network/NetClient.cpp
@@ -250,7 +250,7 @@ bool CNetClient::OnError( void* pContext, CFsmEvent* pEvent )
 	if ( !pEvent || !pContext ) return false;
 
 	// Error event?
-	if ( pEvent->GetType() != NMT_ERROR ) return true;
+	if ( pEvent->GetType() != (uint)NMT_ERROR ) return true;
 
 	CNetClient*	pClient = ( CNetClient* )( ( FsmActionCtx* )pContext )->pHost;
 	assert( pClient );
@@ -364,7 +364,7 @@ bool CNetClient::OnAuthenticate( void* pContext, CFsmEvent* pEvent )
 	assert( pClient );
 	assert( pSession );
 
-	if ( pEvent->GetType() ==  NMT_ERROR )
+	if ( pEvent->GetType() == (uint)NMT_ERROR )
 	{
 		// return CNetClient::OnError( pContext, pEvent );
 	}
diff --git a/source/network/NetServer.cpp b/source/network/NetServer.cpp
index 5c6f7a53e6..75e1cdacab 100644
--- a/source/network/NetServer.cpp
+++ b/source/network/NetServer.cpp
@@ -392,7 +392,7 @@ bool CNetServer::OnError( void* pContext, CFsmEvent* pEvent )
 	if ( !pContext || !pEvent ) return false;
 
 	// Error event?
-	if ( pEvent->GetType() != NMT_ERROR ) return true;
+	if ( pEvent->GetType() != (uint)NMT_ERROR ) return true;
 
 	CNetServer*	 pServer  = ( CNetServer* )( ( FsmActionCtx* )pContext )->pHost;
 	UNUSED2(pServer);
diff --git a/source/ps/CLogger.cpp b/source/ps/CLogger.cpp
index ba9ddd2e6d..27b4bb776a 100644
--- a/source/ps/CLogger.cpp
+++ b/source/ps/CLogger.cpp
@@ -168,7 +168,7 @@ void CLogger::LogUsingMethod(ELogMethod method, const char* message)
 }
 
 // -- This function has not been removed because the build would break.
-void CLogger::Log(ELogMethod method, const char* category, const char *fmt, ...)
+void CLogger::Log(ELogMethod method, const char* UNUSED(category), const char *fmt, ...)
 {
 	va_list argp;
 	char buffer[512];
@@ -185,7 +185,7 @@ void CLogger::Log(ELogMethod method, const char* category, const char *fmt, ...)
 }
 
 // -- This function has not been removed because the build would break.
-void CLogger::LogOnce(ELogMethod method, const char* category, const char *fmt, ...)
+void CLogger::LogOnce(ELogMethod method, const char* UNUSED(category), const char *fmt, ...)
 {
 	va_list argp;
 	char buffer[512];
diff --git a/source/ps/Parser.cpp b/source/ps/Parser.cpp
index e7590c916f..7faaee2e82 100644
--- a/source/ps/Parser.cpp
+++ b/source/ps/Parser.cpp
@@ -554,7 +554,7 @@ bool CParserLine::ParseString(const CParser& Parser, const std::string &strLine)
 					// --- New node is set!
 
 					// Make sure they are large enough
-					if ((int)LastValidProgress.size() < Lane+1)
+					if (LastValidProgress.size() < Lane+1)
 					{
 						LastValidProgress.resize(Lane+1);
 						LastValidMatch.resize(Lane+1);
@@ -602,7 +602,7 @@ bool CParserLine::ParseString(const CParser& Parser, const std::string &strLine)
 								++Progress;
 
 								// Check length
-								if (Progress >= (int)Segments.size())
+								if (Progress >= Segments.size())
 								{
 									break;
 								}
@@ -654,7 +654,7 @@ bool CParserLine::ParseString(const CParser& Parser, const std::string &strLine)
 						//  that invalidates the match
 
 						// String end?
-						if (Progress >= (int)Segments.size())
+						if (Progress >= Segments.size())
 						{
 							Match = false;
 						}
@@ -790,7 +790,7 @@ bool CParserLine::ParseString(const CParser& Parser, const std::string &strLine)
 	// if _minus is found as argument, remove it and add "-" to the one after that
 	// note, it's easier if std::iterator isn't used here
 	
-	for (i=1; i<(int)GetArgCount(); ++i)
+	for (i=1; i<GetArgCount(); ++i)
 	{
 		if (m_Arguments[i-1].m_String == "_minus")
 		{
diff --git a/source/simulation/AStarEngine.cpp b/source/simulation/AStarEngine.cpp
index e86091547d..6a6195d282 100644
--- a/source/simulation/AStarEngine.cpp
+++ b/source/simulation/AStarEngine.cpp
@@ -429,7 +429,7 @@ void PriQueue::promote( AStarNode *node )
 	}
 
 	std::vector<AStarNode*>::iterator ind, first;
-	for( ind = c.begin(); ind!=c.end() && !((*ind)->equals(*node)); ind++ );
+	for( ind = c.begin(); ind!=c.end() && !((*ind)->equals(*node)); ind++ ) { }
 	if (ind == c.end())
 	{
 		push(node);
diff --git a/source/simulation/EntityManager.h b/source/simulation/EntityManager.h
index 4e4b8d9770..bf000fb5bc 100644
--- a/source/simulation/EntityManager.h
+++ b/source/simulation/EntityManager.h
@@ -64,7 +64,7 @@ friend class CHandle;
 	std::bitset<MAX_HANDLES> m_refd;
 	std::vector<CEntity*> m_reaper;
 	std::vector<CEntity*>* m_collisionPatches;
-	int m_nextalloc;
+	size_t m_nextalloc;
 	static bool m_extant;
 	bool m_death;
 	int m_collisionPatchesPerSide;
diff --git a/source/tools/atlas/AtlasScript/ScriptInterface.cpp b/source/tools/atlas/AtlasScript/ScriptInterface.cpp
index 49ad543839..391a7b9672 100644
--- a/source/tools/atlas/AtlasScript/ScriptInterface.cpp
+++ b/source/tools/atlas/AtlasScript/ScriptInterface.cpp
@@ -496,7 +496,9 @@ namespace
 	JSClass global_class = {
 		"global", 0,
 		JS_PropertyStub, JS_PropertyStub, JS_PropertyStub, JS_PropertyStub,
-		JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, JS_FinalizeStub
+		JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, JS_FinalizeStub,
+		NULL, NULL, NULL, NULL,
+		NULL, NULL, NULL, NULL
 	};
 	
 	void ErrorReporter(JSContext* WXUNUSED(cx), const char* message, JSErrorReport* report)
diff --git a/source/tools/atlas/AtlasUI/CustomControls/DraggableListCtrl/DraggableListCtrlCommands.cpp b/source/tools/atlas/AtlasUI/CustomControls/DraggableListCtrl/DraggableListCtrlCommands.cpp
index ecedd76ef4..08f8984e4a 100644
--- a/source/tools/atlas/AtlasUI/CustomControls/DraggableListCtrl/DraggableListCtrlCommands.cpp
+++ b/source/tools/atlas/AtlasUI/CustomControls/DraggableListCtrl/DraggableListCtrlCommands.cpp
@@ -47,17 +47,23 @@ bool DragCommand::Do()
 	AtObj srcData = m_Ctrl->m_ListData.at(m_Src);
 
 	if (m_Tgt > m_Src)
+	{
 		std::copy(
 				m_Ctrl->m_ListData.begin()+(m_Src+1),
 				m_Ctrl->m_ListData.begin()+(m_Tgt+1),
 				m_Ctrl->m_ListData.begin()+ m_Src);
+	}
 	else if (m_Tgt < m_Src)
+	{
 		std::copy_backward(
 				m_Ctrl->m_ListData.begin()+ m_Tgt,
 				m_Ctrl->m_ListData.begin()+ m_Src,
 				m_Ctrl->m_ListData.begin()+(m_Src+1));
+	}
 	else // m_Tgt == m_Src
-		; // do nothing - this item was just dragged onto itself
+	{
+		// do nothing - this item was just dragged onto itself
+	}
 
 	m_Ctrl->m_ListData.at(m_Tgt) = srcData;
 
diff --git a/source/tools/atlas/AtlasUI/Misc/DLLInterface.cpp b/source/tools/atlas/AtlasUI/Misc/DLLInterface.cpp
index 8ffeea9a14..a83af144e9 100644
--- a/source/tools/atlas/AtlasUI/Misc/DLLInterface.cpp
+++ b/source/tools/atlas/AtlasUI/Misc/DLLInterface.cpp
@@ -39,6 +39,9 @@
 #include "wx/debugrpt.h"
 #include "wx/file.h"
 
+// wx and libxml both want to define ATTRIBUTE_PRINTF (with similar
+// meanings), so undef it to avoid a warning
+#undef ATTRIBUTE_PRINTF
 #include <libxml/parser.h>
 
 #ifndef LIBXML_THREAD_ENABLED
diff --git a/source/tools/atlas/AtlasUI/ScenarioEditor/Sections/Trigger/Trigger.cpp b/source/tools/atlas/AtlasUI/ScenarioEditor/Sections/Trigger/Trigger.cpp
index 5e53ece2d0..9518f148ff 100644
--- a/source/tools/atlas/AtlasUI/ScenarioEditor/Sections/Trigger/Trigger.cpp
+++ b/source/tools/atlas/AtlasUI/ScenarioEditor/Sections/Trigger/Trigger.cpp
@@ -1046,7 +1046,7 @@ void TriggerSpecText::onTextEnter(wxCommandEvent& WXUNUSED(evt))
 		wxBell();
 }
 
-TriggerSpecChoice::TriggerSpecChoice(TriggerBottomBar* parent, std::wstring label, const wxPoint& pos, 
+TriggerSpecChoice::TriggerSpecChoice(TriggerBottomBar* parent, std::wstring WXUNUSED(label), const wxPoint& pos, 
 	const wxSize& size, const wxArrayString& strings, int parameter, callback func, void* data) 
 	: wxChoice(parent, wxID_ANY, pos, size, strings), m_Callback(func), m_Data(data), 
 											m_Parent(parent), m_Parameter(parameter)