gcc/fortran/ChangeLog:

2015-05-08  Andre Vehreschild  <vehre@gmx.de>

	PR fortran/66035
	* trans-expr.c (alloc_scalar_allocatable_for_subcomponent_assignment):
	Compute the size to allocate for class and derived type objects
	correclty.
	(gfc_trans_subcomponent_assign): Only allocate memory for the
	component when the object to assign is not a allocatable class
	object. Furthermore use copy_class_to_class for assigning
	the rhs to the component (may happen for dummy class objects on
	the rhs).

gcc/testsuite/ChangeLog:

2015-05-08  Andre Vehreschild  <vehre@gmx.de>

	PR fortran/66035
	* gfortran.dg/structure_constructor_13.f03: New test.