http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48699
janus at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2011.05.15 11:47:17 Ever Confirmed|0 |1 --- Comment #4 from janus at gcc dot gnu.org 2011-05-15 11:47:17 UTC --- (In reply to comment #0) > [sfilippo@donald bug31]$ gfortran -c testmv2.f90 > testmv2.f90:38.20: > > call move_alloc(sm,dat%sm) > 1 > Error: 'from' argument of 'move_alloc' intrinsic at (1) must be ALLOCATABLE Here is a reduced test case for this one: program testmv2 type bar integer, allocatable :: ia(:), ja(:) end type bar class(bar), allocatable :: sm,sm2 allocate(sm2) select type(sm2) type is (bar) call move_alloc(sm2,sm) end select end program testmv2 In each TYPE IS/CLASS IS block we generate a temporary for the selector. Apparently we need to set the correct attributes for the temporary.