Help with a tcfmgr error message

[Frank Küster <frank@debian.org>]

Hi all, ye TEMXF trees specialists,

when testing the papersize patches, I get the following error message
that I don't understand:

config file `tcfmgr.map' (usually in $TEXMFMAIN/texconfig) not found

It comes from tcfmgr which is called by texconfig, and that again is
called like this:

for binary in dvips dvipdfmx xdvi pdftex; do
  if localpaper=$(texconfig-sys $binary paperconf); then
    # stop ucf from asking by setting UCF_FORCE_CONFNEW
    # TEXMFSYSVAR needs to be set, so that texconfig-sys won't create
    # pdftex formats in the real hierarchy
    UCF_FORCE_CONFFNEW=true TEXMFSYSCONFIG=$tempdir_paper TEXMFSYSVAR=$tempdir_paper \
      texconfig-sys $binary paper $localpaper no-recreate-formats # >/dev/null 2>&1
  else
    # this means that there is no existing configuration file. Do nothing.
    # Warning: texconfig will only fail if it has the "set -e" patch!
    :
  fi
done

I tried this:  

# TEXMFSYSCONFIG=/tmp/buildd/ TEXMFSYSVAR=/tmp/buildd/ kpsewhich tcfmgr.map
/usr/share/texmf/texconfig/tcfmgr.map

So changing TEXMFSYSCONFIG and TEXMFSYSVAR should not affect finding
tcfmgr.map - but why the heck does it?

TIA, Frank
-- 
Frank Küster
Sprecher B90/Grüne OV Miltenberg und Umgebung
VCD Miltenberg, ADFC Aschaffenburg-Miltenberg
Debian Developer (TeXLive)