llvm-gcc-4.2/gcc/testsuite/gfortran.dg/namelist_1.f90

! { dg-do compile }
! Check that private entities in public namelists are rejected
module namelist_1
  public
  integer,private :: x
  namelist /n/ x ! { dg-error "cannot be member of PUBLIC namelist" "" }
end module

! { dg-final { cleanup-modules "namelist_1" } }