[Bug fortran/20224] gfortran - flags error on strange, but correct f77 program

["kargl at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Additional Comments From kargl at gcc dot gnu dot org  2005-02-27 00:06 -------
Here's a little more info from the F77 standard, Appendix A.

A2. Conflicts with ANSI X3.9-1966

An extremely important consideration in the preparation of this
standard was the minimization of conflicts with the previous
standard, ANSI X3.9-1966.  This standard includes changes that
create conflicts with ANSI X3.9-1966 only when such changes were
necessary to correct an error in the previous standard or to add
to the power of the FORTRAN language in a significant manner.
The following is a list of known conflicts:

(7) This standard does not permit a transfer of control into the
    range of a DO-loop from outside the range.  The range of a
    DO-loop may be entered only by the execution of a DO statement.
    ANSI X3.9-1966 permitted transfer of control into the range of
    a DO-loop under certain conditions.  This involved the concept
    referred to as "extended range of a DO."

I think that this can be closed with a WONTFIX, since there is
nothing to fix.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20224