V3 and Integrated CPP [was Re: V3 PATCH: Disable wide-character tests where necessary]

[Richard Kenner]

    The problem with these two is that the primary use of --save-temps is
    to generate a .i file which the maintainers can feed into cc1 to show
    a bug.  With the current arrangement, if the user sees a bug with
    --save-temps then the maintainers should see it too because they are
    running cc1 exactly the same way.  With either of these, the
    maintainers will be running cc1 differently to the user and the bug
    might mutate.

I strongly agree with this.