Re: window.c: suggested patch window_scroll_pixel_based

[Richard Stallman]

    I suggest following patch to window.c (window_scroll_pixel_based), to 
    make 'scroll-down' be able to reach the start of the buffer.  This 
    patch partly backs out of 1.433 (rms, 2002/12/23).  I apologize if I 
    have misunderstood the issue.  I have verified the patch on OpenBSD/X11 
    and OSX/Carbon.

This problem does not happen for me, and your change reintroduces code
that seems to be entirely wrong as far as I can tell.  Why do you
think it is right to test `start' here?  It appears to me that BEGV
is correct.