diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 7c14c5312..bdbd8c4ad 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -395,12 +395,14 @@ set(independent_SRCS
 	face_position_cache.cpp
 	httpfetch.cpp
 	hud.cpp
+	inventory.cpp
 	itemstackmetadata.cpp
 	lighting.cpp
 	log.cpp
 	metadata.cpp
 	modchannels.cpp
 	nameidmapping.cpp
+	nodemetadata.cpp
 	nodetimer.cpp
 	noise.cpp
 	objdef.cpp
@@ -428,7 +430,6 @@ set(common_SRCS
 	environment.cpp
 	filesys.cpp
 	gettext.cpp
-	inventory.cpp
 	inventorymanager.cpp
 	itemdef.cpp
 	light.cpp
@@ -439,7 +440,6 @@ set(common_SRCS
 	mapnode.cpp
 	mapsector.cpp
 	nodedef.cpp
-	nodemetadata.cpp
 	pathfinder.cpp
 	player.cpp
 	porting.cpp
diff --git a/src/client/client.cpp b/src/client/client.cpp
index b14ef7004..706f5a0c1 100644
--- a/src/client/client.cpp
+++ b/src/client/client.cpp
@@ -33,6 +33,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "client/renderingengine.h"
 #include "client/sound.h"
 #include "client/texturepaths.h"
+#include "client/texturesource.h"
 #include "client/mesh_generator_thread.h"
 #include "client/particles.h"
 #include "client/localplayer.h"
diff --git a/src/client/minimap.cpp b/src/client/minimap.cpp
index 13dca5fe9..f959d00be 100644
--- a/src/client/minimap.cpp
+++ b/src/client/minimap.cpp
@@ -25,6 +25,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "shader.h"
 #include "mapblock.h"
 #include "client/renderingengine.h"
+#include "client/texturesource.h"
 #include "gettext.h"
 
 ////
diff --git a/src/client/particles.cpp b/src/client/particles.cpp
index 1eab93579..3bff8e155 100644
--- a/src/client/particles.cpp
+++ b/src/client/particles.cpp
@@ -25,6 +25,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "client/content_cao.h"
 #include "client/clientevent.h"
 #include "client/renderingengine.h"
+#include "client/texturesource.h"
 #include "util/numeric.h"
 #include "light.h"
 #include "localplayer.h"
diff --git a/src/client/renderingengine.cpp b/src/client/renderingengine.cpp
index c4933e062..927bee34e 100644
--- a/src/client/renderingengine.cpp
+++ b/src/client/renderingengine.cpp
@@ -27,6 +27,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "guiscalingfilter.h"
 #include "localplayer.h"
 #include "client/hud.h"
+#include "client/texturesource.h"
 #include "camera.h"
 #include "minimap.h"
 #include "clientmap.h"
diff --git a/src/client/sky.cpp b/src/client/sky.cpp
index 65577418e..c7c159a49 100644
--- a/src/client/sky.cpp
+++ b/src/client/sky.cpp
@@ -31,6 +31,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "profiler.h"
 #include "util/numeric.h"
 #include "client/renderingengine.h"
+#include "client/texturesource.h"
 #include "settings.h"
 #include "camera.h" // CameraModes
 
diff --git a/src/client/wieldmesh.cpp b/src/client/wieldmesh.cpp
index e66214ae6..81ca99b5f 100644
--- a/src/client/wieldmesh.cpp
+++ b/src/client/wieldmesh.cpp
@@ -29,6 +29,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "mapblock_mesh.h"
 #include "client/meshgen/collector.h"
 #include "client/tile.h"
+#include "client/texturesource.h"
 #include "log.h"
 #include "util/numeric.h"
 #include <map>
diff --git a/src/gui/guiHyperText.cpp b/src/gui/guiHyperText.cpp
index 6f30ac8ce..483149583 100644
--- a/src/gui/guiHyperText.cpp
+++ b/src/gui/guiHyperText.cpp
@@ -24,6 +24,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "IVideoDriver.h"
 #include "client/client.h"
 #include "client/renderingengine.h"
+#include "client/texturesource.h"
 #include "hud.h"
 #include "inventory.h"
 #include "util/string.h"
diff --git a/src/gui/touchcontrols.h b/src/gui/touchcontrols.h
index 102c85f09..36b8da8e4 100644
--- a/src/gui/touchcontrols.h
+++ b/src/gui/touchcontrols.h
@@ -33,13 +33,13 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 #include "itemdef.h"
 #include "client/game.h"
+#include "client/texturesource.h"
 
 namespace irr
 {
 	class IrrlichtDevice;
 }
 
-using namespace irr;
 using namespace irr::core;
 using namespace irr::gui;
 
diff --git a/src/itemdef.cpp b/src/itemdef.cpp
index 0bb90929e..773cadaec 100644
--- a/src/itemdef.cpp
+++ b/src/itemdef.cpp
@@ -28,6 +28,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "client/mesh.h"
 #include "client/wieldmesh.h"
 #include "client/client.h"
+#include "client/texturesource.h"
 #endif
 #include "log.h"
 #include "settings.h"
@@ -448,8 +449,9 @@ public:
 		// Get the definition
 		return m_item_definitions.find(name) != m_item_definitions.cend();
 	}
+
 #if CHECK_CLIENT_BUILD()
-public:
+protected:
 	ClientCached* createClientCachedDirect(const ItemStack &item, Client *client) const
 	{
 		// This is not thread-safe
@@ -490,6 +492,7 @@ public:
 		return ptr;
 	}
 
+public:
 	// Get item inventory texture
 	virtual video::ITexture* getInventoryTexture(const ItemStack &item,
 			Client *client) const
diff --git a/src/itemdef.h b/src/itemdef.h
index 1cfd475e5..f0d780173 100644
--- a/src/itemdef.h
+++ b/src/itemdef.h
@@ -35,11 +35,11 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 class IGameDef;
 class Client;
 struct ToolCapabilities;
-#if CHECK_CLIENT_BUILD()
-#include "client/texturesource.h"
 struct ItemMesh;
 struct ItemStack;
-#endif
+typedef std::vector<video::SColor> Palette; // copied from src/client/texturesource.h
+namespace irr::video { class ITexture; }
+using namespace irr;
 
 /*
 	Base item definition
@@ -155,25 +155,32 @@ public:
 	virtual void getAll(std::set<std::string> &result) const=0;
 	// Check if item is known
 	virtual bool isKnown(const std::string &name) const=0;
-#if CHECK_CLIENT_BUILD()
+
+	virtual void serialize(std::ostream &os, u16 protocol_version)=0;
+
+	/* Client-specific methods */
+	// TODO: should be moved elsewhere in the future
+
 	// Get item inventory texture
-	virtual video::ITexture* getInventoryTexture(const ItemStack &item, Client *client) const=0;
+	virtual video::ITexture* getInventoryTexture(const ItemStack &item, Client *client) const
+	{ return nullptr; }
 
 	/**
 	 * Get wield mesh
-	 *
-	 * Returns nullptr if there is an inventory image
+	 * @returns nullptr if there is an inventory image
 	 */
-	virtual ItemMesh* getWieldMesh(const ItemStack &item, Client *client) const = 0;
+	virtual ItemMesh* getWieldMesh(const ItemStack &item, Client *client) const
+	{ return nullptr; }
+
 	// Get item palette
-	virtual Palette* getPalette(const ItemStack &item, Client *client) const = 0;
+	virtual Palette* getPalette(const ItemStack &item, Client *client) const
+	{ return nullptr; }
+
 	// Returns the base color of an item stack: the color of all
 	// tiles that do not define their own color.
 	virtual video::SColor getItemstackColor(const ItemStack &stack,
-		Client *client) const = 0;
-#endif
-
-	virtual void serialize(std::ostream &os, u16 protocol_version)=0;
+		Client *client) const
+	{ return video::SColor(0); }
 };
 
 class IWritableItemDefManager : public IItemDefManager
diff --git a/src/nodedef.cpp b/src/nodedef.cpp
index 2b3b3b1fb..06a74ccef 100644
--- a/src/nodedef.cpp
+++ b/src/nodedef.cpp
@@ -25,6 +25,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "client/shader.h"
 #include "client/client.h"
 #include "client/renderingengine.h"
+#include "client/texturesource.h"
 #include "client/tile.h"
 #include <IMeshManipulator.h>
 #endif