[Bug fortran/42257] New: Compiler segmentation fault due missing public statement

["oystein dot olsen at astro dot uio dot no" <gcc-bugzilla at gcc dot gnu dot org>]

The incorrect code below causes an segmentation fault in the latest gfortran. I
am using

gcc version 4.5.0 20091130 (experimental) [trunk revision 154853] (GCC)

The program compiles and works if I make the type "time" public. However, an
error message would be nice.

Code:

MODULE run_example_fortran03
  IMPLICIT NONE
  PRIVATE
  PUBLIC :: I4B, DP, epoch
  !PUBLIC :: time

  INTEGER, PARAMETER :: I4B = SELECTED_INT_KIND(9)
  INTEGER, PARAMETER :: DP = SELECTED_REAL_KIND(15,307)

  TYPE epoch
     INTEGER(I4B) :: i = 2451545
     REAL(DP)     :: f = 0.5_DP
  END TYPE epoch

  TYPE, EXTENDS(epoch) :: time
     REAL(DP) :: t = 0.0_DP   
  END TYPE time
END MODULE run_example_fortran03

PROGRAM example_fortran03
  USE  run_example_fortran03
  IMPLICIT NONE

  CLASS(epoch), ALLOCATABLE :: e4


  ! Allocate a class
  ALLOCATE(epoch::e4)
  WRITE(*,*) e4%i, e4%f

  STOP
END PROGRAM example_fortran03


-- 
           Summary: Compiler segmentation fault due missing public statement
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: oystein dot olsen at astro dot uio dot no
 GCC build triplet: x86_64-unknown-linux-gnu
  GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42257