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diff --git a/gcc/testsuite/gfortran.dg/class_13.f03 b/gcc/testsuite/gfortran.dg/class_13.f03
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+! { dg-do compile }
+!
+! PR 42353: [OOP] Bogus Error: Name 'vtype$...' at (1) is an ambiguous reference ...
+!
+! Original test case by Harald Anlauf <anlauf@gmx.de>
+! Modified by Janus Weil <janus@gcc.gnu.org>
+
+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
+ 
+! { dg-final { cleanup-modules "concrete_vector concrete_gradient concrete_inner_product" } }