Re: doc-view compilation warnings

[Richard Stallman]

    That would load doc-view unconditionally when a user opens a pdf/ps/dvi
    file.  That's ok with me, but others might think different.

    But someone should decide: Is loading doc-view when opening ps/pdf/dvi
    files ok?

For opening pdf/dvi files, we want themto use doc-view by default.
For PS files, we don't want doc-view to be the default mode choice,
but it is ok if visiting a PS file loads doc-view.