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Subject: [Bug fortran/42353] [OOP] Bogus Error: Name 'vtype$...' at (1) is an ambiguous reference ...
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------- Comment #7 from janus at gcc dot gnu dot org  2009-12-28 14:15 -------
Here is a reduced version of the test case in comment #6:

module concrete_vector
  type :: trivial_vector_type
  end type
  class(trivial_vector_type), pointer :: this
end module concrete_vector

module concrete_gradient
contains
  subroutine my_to_vector (v)
    use concrete_vector
    class(trivial_vector_type) :: v
    select type (v)
    class is (trivial_vector_type)
    end select
  end subroutine
end module concrete_gradient

module concrete_inner_product
  use concrete_vector
  use concrete_gradient
contains
  real function my_dot_v_v (a)
    class(trivial_vector_type) :: a
    select type (a)
    class is (trivial_vector_type)
    end select
  end function
end module concrete_inner_product


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42353