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[Bug fortran/41627] mixing common and modules elicits seg fault
- From: "dominiq at lps dot ens dot fr" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 7 Oct 2009 23:57:36 -0000
- Subject: [Bug fortran/41627] mixing common and modules elicits seg fault
- References: <bug-41627-17946@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #3 from dominiq at lps dot ens dot fr 2009-10-07 23:57 -------
Confirmed for gfortran 4.3.4, 4.4.1, and trunk. The code compiles with gfortran
4.2.4, thus this is a regression. Reduced test:
module testmod
integer, parameter :: r8 = selected_real_kind(12)
type VARIABLES_MAILLE
real(r8), dimension(5) :: cell_var
end type VARIABLES_MAILLE
type (VARIABLES_MAILLE), pointer, dimension(:) :: Hydro_vars
real(r8), pointer, dimension(:) :: Ro
common/arrays/Ro
end module testmod
subroutine TF_AD_SPLITTING_DRIVER_PLANE
use testmod
implicit none
Ro => Hydro_vars(1:2)%cell_var(1)
end subroutine TF_AD_SPLITTING_DRIVER_PLANE
end
Note that if I comment the line " common/arrays/Ro" I get the following link
error:
Undefined symbols:
"_span.0", referenced from:
_span.0$non_lazy_ptr in ccut3FpU.o
ld: symbol(s) not found
collect2: ld returned 1 exit status
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41627