+IF(DEFINED CMAKE_OVL_MOUNT_COMPRESS_ZLIB)
+ ADD_DEFINITIONS(-DOVL_MOUNT_COMPRESS_ZLIB)
+ENDIF(DEFINED CMAKE_OVL_MOUNT_COMPRESS_ZLIB)
+
+IF(DEFINED CMAKE_OVL_MOUNT_FULL_ACCESS_TIME)
+ ADD_DEFINITIONS(-DOVL_MOUNT_FULL_ACCESS_TIME)
+ENDIF(DEFINED CMAKE_OVL_MOUNT_FULL_ACCESS_TIME)
+