Bug#402994: use new libpaper hook to track system paper size

[Frank Küster <frank@debian.org>]

Ralf Stubner <ralf.stubner@web.de> wrote:

>>> dvipdfm allready links against libpaper. 
>> 
>> Err, right.  We probably should disable "texconfig dvidpdfm paper",
>> then. 
>
> ACK

Hm, no.  Actually things are more complicated, and I'm not sure whether
this is a good idea:  dvipdfm reads both the libpaper setting and the
setting in its config file, and the config file overrides the system
setting.  In other words, with the default tetex-bin install with 

% Set default paper size here
p a4

in /usr/share/texmf-tetex/dvipdfm/config/config, the libpaper setting
has no effect, it's a4 all the time.  Just for reference, here's the
code from dvipdfm.c:

  {
    rect paper_size = get_paper_size (systempapername (), 0);
    if (paper_size.width != 0) {
      paper_width = paper_size.width;
      paper_height = paper_size.height;
    }
  }
  /* Process config file, if any */
  /* yes, in Debian there are two: config and an additional fontmaps file */
  read_config_file("config");
  read_config_file("fontmaps");

  do_args (argc, argv);

and read_config_file has this comment: 

    /* Build up an argument list as if it were passed on the command
       line */

>>> For dvips I currently see no
>>> possibility to have one configuration file specify another one, that
>>> should also be read.
>> 
>> Will it read multiple config files, e.g. in TEXMFSYSVAR and
>> TEXMFSYSCONFIG/TEXMFDIST? 
>
> I don't now, but I would be surprised if it does.

Debian has patched dvipdfm to read two config files: config and
fontmaps.  I guess this is now unnecessary and predates updmap support
for dvipdfm.  But we could add a papersize file instead.

Regards, Frank
-- 
Dr. Frank Küster
Single Molecule Spectroscopy, Protein Folding @ Inst. f. Biochemie, Univ. Zürich
Debian Developer (teTeX/TeXLive)