http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35810
--- Comment #10 from Tobias Burnus <burnus at gcc dot gnu.org> 2010-10-25 22:22:49 UTC --- (In reply to comment #6) > Note in Fortran 2008 (cf. PR 41719), > polymorphic-variable = expr > is allowed iff the variable is allocatable. And note further that this is nontrivial as it requires a deep copy, cf. PR 46174. * * * Newer draft patch for realloc on assignment (w/o the polymorphic assignment): http://gcc.gnu.org/ml/fortran/2010-10/msg00213.html