Fixed: Didn't display any error when DirectX SDK was not found

Changed: Use of new variables to detect 64bits arch

code/CMakeModules/FindDirectXSDK.cmake

@@ -30,16 +30,11 @@ ENDMACRO(FIND_DXSDK_LIBRARY MYLIBRARY MYLIBRARYNAME)
 IF(DXSDK_DIR)
   SET(DXSDK_INCLUDE_DIR "${DXSDK_DIR}/Include")
 
-  IF(NOT CMAKE_SIZEOF_VOID_P)
+  IF(TARGET_X64)
-    INCLUDE (CheckTypeSize)
-    CHECK_TYPE_SIZE("void*"  CMAKE_SIZEOF_VOID_P)
-  ENDIF(NOT CMAKE_SIZEOF_VOID_P)
-
-  IF(CMAKE_SIZEOF_VOID_P EQUAL 8)
     SET(DXSDK_LIBRARY_DIR "${DXSDK_DIR}/Lib/x64")
-  ELSE(CMAKE_SIZEOF_VOID_P EQUAL 8)
+  ELSE(TARGET_X64)
     SET(DXSDK_LIBRARY_DIR "${DXSDK_DIR}/Lib/x86")
-  ENDIF(CMAKE_SIZEOF_VOID_P EQUAL 8)
+  ENDIF(TARGET_X64)
 
   FIND_DXSDK_LIBRARY(DXSDK_GUID_LIBRARY dxguid)
   FIND_DXSDK_LIBRARY(DXSDK_DINPUT_LIBRARY dinput8)
@@ -59,7 +54,7 @@ ENDIF(DXSDK_DIR)
 # all listed variables are TRUE.
 INCLUDE(FindPackageHandleStandardArgs)
 
-FIND_PACKAGE_HANDLE_STANDARD_ARGS(DIRECTXSDK DEFAULT_MSG DXSDK_DIR DXSDK_GUID_LIBRARY DXSDK_DINPUT_LIBRARY)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(DirectXSDK DEFAULT_MSG DXSDK_DIR DXSDK_GUID_LIBRARY DXSDK_DINPUT_LIBRARY)
 
 MARK_AS_ADVANCED(DXSDK_INCLUDE_DIR
   DXSDK_GUID_LIBRARY