diff --git a/examples/CommonInterfaces/CommonGUIHelperInterface.h b/examples/CommonInterfaces/CommonGUIHelperInterface.h
index 01f7b3728..eb1cf6cbb 100644
--- a/examples/CommonInterfaces/CommonGUIHelperInterface.h
+++ b/examples/CommonInterfaces/CommonGUIHelperInterface.h
@@ -70,10 +70,10 @@ struct GUIHelperInterface
 
 
 	
-	virtual int		addUserDebugText3D( const char* txt, const double posisionXYZ[3], const double	textColorRGB[3], double size, double lifeTime)=0;
-	virtual int		addUserDebugLine(const double	debugLineFromXYZ[3], const double	debugLineToXYZ[3], const double	debugLineColorRGB[3], double lineWidth, double lifeTime )=0;
-	virtual void	removeUserDebugItem( int debugItemUniqueId)=0;
-	virtual void	removeAllUserDebugItems( )=0;
+	virtual int		addUserDebugText3D( const char* txt, const double posisionXYZ[3], const double	textColorRGB[3], double size, double lifeTime){return -1;};
+	virtual int		addUserDebugLine(const double	debugLineFromXYZ[3], const double	debugLineToXYZ[3], const double	debugLineColorRGB[3], double lineWidth, double lifeTime ){return -1;};
+	virtual void	removeUserDebugItem( int debugItemUniqueId){};
+	virtual void	removeAllUserDebugItems( ){};
 
 };
 
diff --git a/examples/Importers/ImportMJCFDemo/ImportMJCFSetup.cpp b/examples/Importers/ImportMJCFDemo/ImportMJCFSetup.cpp
index eb62a2826..3840b5c87 100644
--- a/examples/Importers/ImportMJCFDemo/ImportMJCFSetup.cpp
+++ b/examples/Importers/ImportMJCFDemo/ImportMJCFSetup.cpp
@@ -238,11 +238,13 @@ void ImportMJCFSetup::initPhysics()
 			ConvertURDF2Bullet(importer,creation, rootTrans,m_dynamicsWorld,m_useMultiBody,importer.getPathPrefix(),CUF_USE_MJCF);
 
 			mb = creation.getBulletMultiBody();
-			if (0)//mb)
-			{
-				printf("first MJCF file converted!\n");
-				std::string*   name = new std::string(importer.getLinkName(importer.getRootLinkIndex()));
-				m_nameMemory.push_back(name);
+                        if (/* DISABLES CODE */ (0))  // mb)
+                        {
+                          printf("first MJCF file converted!\n");
+                          std::string* name =
+                              new std::string(importer.getLinkName(
+                                  importer.getRootLinkIndex()));
+                          m_nameMemory.push_back(name);
 #ifdef TEST_MULTIBODY_SERIALIZATION
 				s->registerNameForPointer(name->c_str(),name->c_str());
 #endif//TEST_MULTIBODY_SERIALIZATION
diff --git a/src/LinearMath/btQuickprof.cpp b/src/LinearMath/btQuickprof.cpp
index 8233daa57..16ca88cdc 100644
--- a/src/LinearMath/btQuickprof.cpp
+++ b/src/LinearMath/btQuickprof.cpp
@@ -30,6 +30,7 @@
 #endif
 #ifdef __APPLE__
 #include <mach/mach_time.h>
+#include <TargetConditionals.h>
 #endif
 
 #if defined(WIN32) || defined(_WIN32)