emacs reference card for A4 paper

[Stephen Eglen <S.J.Eglen@damtp.cam.ac.uk>]

Hi, 

I'd like to print the emacs reference card on two pages of A4 paper
for a class.  A quick google search showed this question had been
answered a couple of years ago by Roland (cc'ed).  Following his
advice, here is a patch against the CVS etc/refcard.tex.  

With this I get a nice A4 sized refcard that fits on two pages (using
tex refcard.tex; dvips -t landscape).

Installing this however will break usage for letter paper users.  Has
anyone got a portable method that will work well for both A4 and
letter paper sizes?

Thanks, Stephen

*** /tmp/ediff113839wV	Fri Oct 15 18:47:28 2004
--- /local/scratch/public/emacs/etc/refcard.tex	Fri Oct 15 18:42:17 2004
***************
*** 5,11 ****
  % This file can be printed with 1, 2, or 3 columns per page (see below).
  % Specify how many you want here.  Nothing else needs to be changed.
  
! \columnsperpage=1
  
  % Copyright (c) 1987, 1993, 1996, 1997 Free Software Foundation, Inc.
  
--- 5,11 ----
  % This file can be printed with 1, 2, or 3 columns per page (see below).
  % Specify how many you want here.  Nothing else needs to be changed.
  
! \columnsperpage=3
  
  % Copyright (c) 1987, 1993, 1996, 1997 Free Software Foundation, Inc.
  
***************
*** 103,109 ****
    \def\makefootline{\baselineskip10pt\hsize6.5in\line{\the\footline}}
  \else				%2 or 3 columns uses prereduced size
    \hsize 3.2in
!   \vsize 7.95in
    \hoffset -.75in
    \voffset -.745in
    \font\titlefont=cmbx10 \scaledmag2
--- 103,109 ----
    \def\makefootline{\baselineskip10pt\hsize6.5in\line{\the\footline}}
  \else				%2 or 3 columns uses prereduced size
    \hsize 3.2in
!   \vsize 7.65in
    \hoffset -.75in
    \voffset -.745in
    \font\titlefont=cmbx10 \scaledmag2
***************
*** 123,129 ****
    \def\bf{\eightbf}
    \def\it{\eightit}
    \def\tt{\eighttt}
!   \normalbaselineskip=.8\normalbaselineskip
    \normallineskip=.8\normallineskip
    \normallineskiplimit=.8\normallineskiplimit
    \normalbaselines\rm		%make definitions take effect
--- 123,129 ----
    \def\bf{\eightbf}
    \def\it{\eightit}
    \def\tt{\eighttt}
!   \normalbaselineskip=.7\normalbaselineskip
    \normallineskip=.8\normallineskip
    \normallineskiplimit=.8\normallineskiplimit
    \normalbaselines\rm		%make definitions take effect