IF(EXISTS "${BIN_DIR}/GLPaint" AND IS_DIRECTORY "${BIN_DIR}/GLPaint")
  FILE(REMOVE_RECURSE "${BIN_DIR}/GLPaint")
ENDIF()
IF(EXISTS "${BIN_DIR}/Surfaces" AND IS_DIRECTORY "${BIN_DIR}/Surfaces")
  FILE(REMOVE_RECURSE "${BIN_DIR}/Surfaces")
ENDIF()
IF(EXISTS "${BIN_DIR}/VolumeRender" AND IS_DIRECTORY "${BIN_DIR}/VolumeRender")
  FILE(REMOVE_RECURSE "${BIN_DIR}/VolumeRender")
ENDIF()
IF(EXISTS "${BIN_DIR}/PlaneView" AND IS_DIRECTORY "${BIN_DIR}/PlaneView")
  FILE(REMOVE_RECURSE "${BIN_DIR}/PlaneView")
ENDIF()