mfc error with a constructor

[Rupert Ford]

constructors don't seem to be supported ...

module region_mod
  implicit none

  type :: region_type
     integer :: nx
  end type region_type

  interface region_type
     module procedure region_constructor
  end interface region_type

end module region_mod

region_mod.f90:8:13: error: redefining symbol 'region_type'