diff --git a/src/xbus/libxplanemp/CMakeLists.txt b/src/xbus/libxplanemp/CMakeLists.txt
new file mode 100644
index 000000000..1800e0ad8
--- /dev/null
+++ b/src/xbus/libxplanemp/CMakeLists.txt
@@ -0,0 +1,54 @@
+cmake_minimum_required(VERSION 3.0)
+set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules" ${CMAKE_MODULE_PATH})
+find_package(XPSDK REQUIRED)
+
+
+if(CMAKE_SYSTEM_NAME MATCHES "Linux")
+	add_definitions(-DLIN=1)
+	find_package(PNG)
+	#set(XPMP_PLATFORM_SOURCES
+	#	src/PlatformUtils.lin.cpp)
+elseif(CMAKE_SYSTEM_NAME MATCHES "Windows")
+	add_definitions(-DIBM=1)
+	#set(XPMP_PLATFORM_SOURCES
+	#	src/PlatformUtils.win.cpp)
+elseif(CMAKE_SYSTEM_NAME MATCHES "Darwin")
+	add_definitions(-DAPL=1)
+	#set(XPMP_PLATFORM_SOURCES
+	#	src/PlatformUtils.mac.cpp)
+	find_library(OPENGL OpenGL)
+	set(XPMP_PLATFORM_LIBRARIES ${OPENGL})
+endif()
+if(PNG_FOUND)
+	add_definitions(-DBITMAP_USE_PNG=1)
+endif()
+
+add_definitions(-DXPLM200=1 -DXPLM210=1)
+
+add_library(xplanemp
+	${XPMP_PLATFORM_SOURCES}
+	src/BitmapUtils.cpp
+	src/TexUtils.cpp
+	src/XObjDefs.cpp
+	src/XObjReadWrite.cpp
+	src/XOGLUtils.cpp
+	src/XPCAircraft.cpp
+	src/XPMPMultiplayer.cpp
+	src/XPMPMultiplayerCSL.cpp
+	src/XPMPMultiplayerObj8.cpp
+	src/XPMPMultiplayerObj.cpp
+	src/XPMPMultiplayerVars.cpp
+	src/XPMPPlaneRenderer.cpp
+	src/XUtils.cpp)
+target_include_directories(xplanemp
+	PUBLIC 
+		${XPSDK_INCLUDE_DIRS}
+		${CMAKE_CURRENT_SOURCE_DIR}/include
+		${CMAKE_CURRENT_SOURCE_DIR}/src
+		${PNG_INCLUDE_DIRS})
+target_link_libraries(xplanemp
+	PUBLIC ${XPSDK_XPLM_LIBRARIES}
+	${PNG_LIBRARIES}
+	${XPMP_PLATFORM_LIBRARIES})
+target_compile_definitions(xplanemp PUBLIC XUTILS_EXCLUDE_MAC_CRAP=1)
+
diff --git a/src/xbus/libxplanemp/README.markdown b/src/xbus/libxplanemp/README.markdown
index 5b6b6d195..361194924 100644
--- a/src/xbus/libxplanemp/README.markdown
+++ b/src/xbus/libxplanemp/README.markdown
@@ -42,7 +42,7 @@ Multiplayer as it existed on X-IvAp SourceForge:
 git checkout -b <new branch name> last_xivap_subversion
 
 Multiplayer as it existed on XSB/VATSIM git repository:
-git checkout -b &lt;<new branch name&gt; last_xivap_xsb
+git checkout -b &lt;new branch name&gt; last_xivap_xsb
 
 ##License
 
diff --git a/src/xbus/libxplanemp/cmake/Modules/FindXPSDK.cmake b/src/xbus/libxplanemp/cmake/Modules/FindXPSDK.cmake
new file mode 100644
index 000000000..f48a0f231
--- /dev/null
+++ b/src/xbus/libxplanemp/cmake/Modules/FindXPSDK.cmake
@@ -0,0 +1,41 @@
+find_path(XPSDK_DIR 
+	NAMES 
+	CHeaders/XPLM/XPLMDefs.h 
+	CHeaders/Wrappers/XPCDisplay.h) 
+if(XPSDK_DIR)
+	set(XPSDK_FOUND TRUE)
+	if(CMAKE_SIZE_OF_VOID_P EQUAL 8)
+		set(WSIZE "_64")
+	endif()
+	if(CMAKE_SYSTEM_NAME MATCHES "Linux")
+		set(XPSDK_ARCH "Lin")
+		set(XPSDK_DEFINITIONS "-DLIN=1")
+	elseif(CMAKE_SYSTEM_NAME MATCHES "Windows")
+		set(XPSDK_ARCH "Win")
+		set(XPSDK_DEFINITIONS "-DIBM=1")
+	elseif(CMAKE_SYSTEM_NAME MATCHES "Darwin")
+		set(XPSDK_ARCH "Mac")
+		set(XPSDK_DEFINITIONS "-DAPL=1")
+	endif()
+
+	set(XPSDK_INCLUDE_DIRS ${XPSDK_DIR}/CHeaders/XPLM ${XPSDK_DIR}/CHeaders/Widgets ${XPSDK_DIR}/CHeaders/Wrappers) 
+	set(XPSDK_LIBRARY_DIRS ${XPSDK_DIR}/Libraries/${XPSDK_ARCH})
+	file(GLOB XPSDK_WRAPPERS_SOURCES ${XPSDK_DIR}/CHeaders/Wrappers/*.cpp)
+
+	# linux doesn't have linking stubs for XPLM/XPWidgets!
+	if(CMAKE_SYSTEM_NAME MATCHES "Windows")
+		set(XPSDK_XPLM_LIBRARIES ${XPSDK_LIBRARY_DIRS}/XPLM${WSIZE}.lib)
+		set(XPSDK_XPWIDGETS_LIBRARIES ${XPSDK_LIBRARY_DIRS}/XPWidgets${WSIZE}.lib)
+	elseif(CMAKE_SYSTEM_NAME MATCHES "Darwin")
+		set(XPSDK_XPLM_LIBRARIES ${XPSDK_LIBRARY_DIRS}/XPLM.framework)
+		set(XPSDK_XPWIDGETS_LIBRARIES ${XPSDK_LIBRARY_DIRS}/XPWidgets.framework)
+	endif()
+
+else()
+	set(XPSDK_FOUND)
+	set(XPSDK_NOT_FOUND_MESSAGE "Could not find the XPlane Plugin SDK - please set XPSDK_DIR to the top directory of the SDK")
+	if(XPSDK_FIND_REQUIRED)
+		message(SEND_ERROR "Couldn't find Required XPlane Plugin SDK")
+	endif()
+endif()
+
diff --git a/src/xbus/libxplanemp/include/XPMPMultiplayer.h b/src/xbus/libxplanemp/include/XPMPMultiplayer.h
index f007e0fe3..4dabe6c5b 100644
--- a/src/xbus/libxplanemp/include/XPMPMultiplayer.h
+++ b/src/xbus/libxplanemp/include/XPMPMultiplayer.h
@@ -502,11 +502,11 @@ typedef	void (* XPMPPlaneNotifier_f)(
  *
  * This function fetches specific data about a plane in the sim.  Pass in a plane ID, a data type
  * and a pointer to a struct for the data.  The struct's size field must be filled in!  The data
- * will be returned if possible, as well as the sim cycle the data is from, or 0 if the data could not
- * be fetched.
+ * will be returned if possible, as well as an enum code indicating whether we are returning new
+ * data, old data, or we have no data at all.
  *
  */
- int			XPMPGetPlaneData(
+ XPMPPlaneCallbackResult XPMPGetPlaneData(
 							XPMPPlaneID					inPlane,
 							XPMPPlaneDataType			inDataType,
 							void *						outData);
diff --git a/src/xbus/libxplanemp/src/XPMPMultiplayer.cpp b/src/xbus/libxplanemp/src/XPMPMultiplayer.cpp
index bb4246498..a3689c27a 100644
--- a/src/xbus/libxplanemp/src/XPMPMultiplayer.cpp
+++ b/src/xbus/libxplanemp/src/XPMPMultiplayer.cpp
@@ -482,14 +482,17 @@ void			XPMPUnregisterPlaneNotifierFunc(
 		gObservers.erase(iter);
 }					
 
-int			XPMPGetPlaneData(
+XPMPPlaneCallbackResult			XPMPGetPlaneData(
 					XPMPPlaneID					inPlane,
 					XPMPPlaneDataType			inDataType,
 					void *						outData)
 {
 	XPMPPlanePtr	plane = XPMPPlaneIsValid(inPlane, NULL);
+	
+	XPMPPlaneCallbackResult result = xpmpData_Unavailable;
+	
 	if (plane == NULL)
-		return -1;
+		return result;
 	
 	int now = XPLMGetCycleNumber();
 		
@@ -498,47 +501,49 @@ int			XPMPGetPlaneData(
 		{
 			if (plane->posAge != now)
 			{
-				XPMPPlaneCallbackResult result = 
-					plane->dataFunc(plane, inDataType, &plane->pos, plane->ref);
+				result = plane->dataFunc(plane, inDataType, &plane->pos, plane->ref);
 				if (result == xpmpData_NewData)
 					plane->posAge = now;
 			}
 			
 			XPMPPlanePosition_t *	posD = (XPMPPlanePosition_t *) outData;
 			memcpy(posD, &plane->pos, XPMP_TMIN(posD->size, plane->pos.size));
+			result = xpmpData_Unchanged;
 
-			return plane->posAge;
+			break;
 		}
 	case xpmpDataType_Surfaces:
 		{
 			if (plane->surfaceAge != now)
 			{
-				XPMPPlaneCallbackResult result = 
-					plane->dataFunc(plane, inDataType, &plane->surface, plane->ref);
+				result = plane->dataFunc(plane, inDataType, &plane->surface, plane->ref);
 				if (result == xpmpData_NewData)
 					plane->surfaceAge = now;
 			}
 			
 			XPMPPlaneSurfaces_t *	surfD = (XPMPPlaneSurfaces_t *) outData;
 			memcpy(surfD, &plane->surface, XPMP_TMIN(surfD->size, plane->surface.size));
-			return plane->surfaceAge;
+			result = xpmpData_Unchanged;
+
+			break;
 		}
 	case xpmpDataType_Radar:
 		{
 			if (plane->radarAge != now)
 			{
-				XPMPPlaneCallbackResult result = 
-					plane->dataFunc(plane, inDataType, &plane->radar, plane->ref);
+				result = plane->dataFunc(plane, inDataType, &plane->radar, plane->ref);
 				if (result == xpmpData_NewData)
 					plane->radarAge = now;
 			}
 			
 			XPMPPlaneRadar_t *	radD = (XPMPPlaneRadar_t *) outData;
 			memcpy(radD, &plane->radar, XPMP_TMIN(radD->size, plane->radar.size));
-			return plane->radarAge;
+			result = xpmpData_Unchanged;
+
+			break;
 		}
 	}
-	return -1;
+	return result;
 }
 
 XPMPPlanePtr	XPMPPlaneIsValid(XPMPPlaneID inID, XPMPPlaneVector::iterator * outIter)
diff --git a/src/xbus/libxplanemp/src/XPMPMultiplayerCSL.cpp b/src/xbus/libxplanemp/src/XPMPMultiplayerCSL.cpp
index ee37db4c8..8749dd874 100644
--- a/src/xbus/libxplanemp/src/XPMPMultiplayerCSL.cpp
+++ b/src/xbus/libxplanemp/src/XPMPMultiplayerCSL.cpp
@@ -42,7 +42,7 @@ using std::max;
 #endif
 
 // Set this to 1 to get TONS of diagnostics on what the lib is doing.
-#define 	DEBUG_CSL_LOADING 1
+#define 	DEBUG_CSL_LOADING 0
 
 // Set this to 1 to cause AIRLINE and LIVERY to create ICAO codes automatically
 #define USE_DEFAULTING 0
diff --git a/src/xbus/libxplanemp/src/XPMPMultiplayerObj.cpp b/src/xbus/libxplanemp/src/XPMPMultiplayerObj.cpp
index 278b7ce8e..0aa050dbc 100644
--- a/src/xbus/libxplanemp/src/XPMPMultiplayerObj.cpp
+++ b/src/xbus/libxplanemp/src/XPMPMultiplayerObj.cpp
@@ -31,7 +31,8 @@
 
 #include <map>
 #include <vector>
-#include <math.h>
+#include <cmath>
+#include <cstdio>
 
 #include "XPLMGraphics.h"
 #include "XPLMUtilities.h"
@@ -345,8 +346,12 @@ int		OBJ_LoadModel(const char * inFilePath)
 	tex_path += sObjects.back().obj.texture;
 	tex_path += ".png";
 	sObjects.back().texnum = OBJ_LoadTexture(tex_path.c_str(), false);
-	if(sObjects.back().texnum == 0)
-		printf("WARNING: %s failed to load for %s.\n", tex_path.c_str(),inFilePath);
+	if(sObjects.back().texnum == 0) {
+		char	debug[500];
+		snprintf(debug, 500, "WARNING: %s failed to load for %s.\n", tex_path.c_str(),inFilePath);
+		debug[499] = '\0';
+		XPLMDebugString(debug);
+	}
 
 	tex_path = path;
 	p = tex_path.find_last_of("\\:/");//XPLMGetDirectorySeparator());
diff --git a/src/xbus/libxplanemp/src/XPMPPlaneRenderer.cpp b/src/xbus/libxplanemp/src/XPMPPlaneRenderer.cpp
index 63b0c4b61..953d4d8ae 100644
--- a/src/xbus/libxplanemp/src/XPMPPlaneRenderer.cpp
+++ b/src/xbus/libxplanemp/src/XPMPPlaneRenderer.cpp
@@ -26,6 +26,7 @@
 #include "XPMPMultiplayerCSL.h"
 #include "XPMPMultiplayerVars.h"
 #include "XPMPMultiplayerObj.h"
+#include "XPMPMultiplayerObj8.h"
 
 #include "XPLMGraphics.h"
 #include "XPLMDisplay.h"