[Bug fortran/20146] New: internal compiler error on equivalence

["dir at lanl dot gov" <gcc-bugzilla at gcc dot gnu dot org>]

It does not like this construction -

[dranta:~/tests/gfortran] dir% gfortran -o common common.f90
common.f90:0: internal compiler error: backend decl for module variable pc
already exists
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
[dranta:~/tests/gfortran] dir% cat  common.f90
       module define_kind
       integer, parameter :: REAL8 = SELECTED_REAL_KIND(12)
       real(real8) :: den , pc , pl , psi
       equivalence (den,pl)
       equivalence (psi,pc)
       end module define_kind
       program main
       stop
       end

-- 
           Summary: internal compiler error on equivalence
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dir at lanl dot gov
                CC: gcc-bugs at gcc dot gnu dot org
  GCC host triplet: powerpc-apple-darwin7.8.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20146