https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67311
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Seems with ALLOCATABLE rather than POINTER it is rejected though: TYPE myType TYPE(myType), DIMENSION(:), ALLOCATABLE :: x END TYPE myType end pr67311-2.f90:2:46: TYPE(myType), DIMENSION(:), ALLOCATABLE :: x 1 Error: Derived type at (1) has not been previously defined and so cannot appear in a derived type definition