Fix compilation on GCC

CMakeLists.txt

@@ -20,6 +20,10 @@ IF(WIN32)
 	#SET(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
 ENDIF(WIN32)
 
+IF(CMAKE_COMPILER_IS_GNUCXX) #Maybe "OR MINGW"
+	ADD_DEFINITIONS(-std=c++0x) #Enable C++0x mode
+ENDIF()
+
 ADD_SUBDIRECTORY(library)
 
 OPTION(ENABLE_EXAMPLES "Should the examples be built" ON)

library/PolyVoxCore/include/SurfaceMesh.h

@@ -28,6 +28,7 @@ freely, subject to the following restrictions:
 
 #include <vector>
 #include <set>
+#include <memory>
 
 #include "PolyVoxForwardDeclarations.h"
 #include "Region.h"

library/PolyVoxCore/include/Volume.h

@@ -33,6 +33,7 @@ freely, subject to the following restrictions:
 #include <limits>
 #include <map>
 #include <vector>
+#include <memory>
 
 #pragma endregion