Bug#175606: Modified postinst

[Simon Law <sfllaw@engmail.uwaterloo.ca>]

Your modifications have been made, however I do get this disturbing error
when running the postinst:  (Note, I am using set -x)

+ /usr/bin/updmap --cnffile /etc/texmf/updmap.cfg --outputdir /etc/texmf/dvips
/usr/bin/updmap: line 622: /web2c/mktexdir: No such file or directory

	It looks like TEXMFMAIN isn't being set properly inside updmap.
Perhaps you could take a look.

	After the error message, it continues thus (because I already
have a dvips directory):

using output directory /etc/texmf/dvips

updmap is creating new map files using the following configuration:
  prefer outlines: true
  texhash enabled: true
  download standard fonts (dvips): false
  download standard fonts (pdftex): false

Scanning for LW35 support files
updmap: map file `pdftex35.map' not found.
updmap: map file `ps2pk35.map' not found.
updmap: map file `dvips35.map' not found.

Scanning for MixedMap entries:
using map file `/usr/share/texmf/dvips/bluesky/bsr-interpolated.map'
using map file `/usr/share/texmf/dvips/bluesky/bsr.map'
using map file `/usr/share/texmf/dvips/cc-pl/ccpl.map'
using map file `/usr/share/texmf/dvips/config/cs.map'
using map file `/usr/share/texmf/dvips/misc/eurosym.map'
using map file `/usr/share/texmf/dvips/config/hoekwater.map'
using map file `/usr/share/texmf/dvips/config/pl.map'
updmap: map file `ttcmex.map' not found.

Scanning for Map entries:
using map file `/usr/share/texmf/dvips/antp/antp.map'
using map file `/usr/share/texmf/dvips/antt/antt.map'
using map file `/usr/share/texmf/dvips/config/charter.map'
using map file `/usr/share/texmf/dvips/config/cmcyr.map'
using map file `/usr/share/texmf/dvips/config/context.map'
using map file `/usr/share/texmf/dvips/config/lucidabr.map'
using map file `/usr/share/texmf/dvips/config/marvosym.map'
using map file `/usr/share/texmf/dvips/config/mathpi.map'
updmap: map file `mathpple.map' not found.
using map file `/usr/share/texmf/dvips/config/mt-plus.map'
using map file `/usr/share/texmf/dvips/config/mt-yy.map'
using map file `/usr/share/texmf/dvips/omega/omega.map'
using map file `/usr/share/texmf/dvips/config/pazo.map'
updmap: map file `pxfonts.map' not found.
updmap: map file `qbk.map' not found.
updmap: map file `qcr.map' not found.
updmap: map file `qhv.map' not found.
using map file `/usr/share/texmf/dvips/config/qpl.map'
using map file `/usr/share/texmf/dvips/config/qtm.map'
updmap: map file `qzc.map' not found.
updmap: map file `txfonts.map' not found.
using map file `/usr/share/texmf/dvips/config/xypic.map'

	It hangs here.

Simon