preprocessor/6738: -dM -M -o file.i doesn't work (test gcc.dg/cpp/cmdlne-dM-M.c)

[David.Billinghurst@riotinto.com]

>Number:         6738
>Category:       preprocessor
>Synopsis:       -dM -M -o file.i doesn't work (test gcc.dg/cpp/cmdlne-dM-M.c)
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon May 20 07:06:00 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     David Billinghurst
>Release:        gcc-3.2
>Organization:
>Environment:
All (I think)
>Description:
Test gcc.dg/cpp/cmdlne-dM-M.c was added on 2002-05-02 and still fails.  

See http://gcc.gnu.org/ml/gcc-patches/2002-05/msg00100.html

Should this be xfailed?  I can prepare a patch.
>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: