[Bug fortran/20896] New: error needed

[jv244 at cam dot ac dot uk]

The following is non-standard and the compiler should probably generate a
warning/error with '-pedantic -std=f95'

  INTERFACE g
    SUBROUTINE s1(p)
      INTERFACE
        SUBROUTINE p
        END
      END INTERFACE
    END
    SUBROUTINE s2(p)
      INTERFACE
        REAL FUNCTION p()
        END
      END INTERFACE
    END
  END INTERFACE
  END

-- 
           Summary: error needed
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jv244 at cam dot ac dot uk
                CC: gcc-bugs at gcc dot gnu dot org
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20896