Bug#522341: refcard: FTBFS: failure to process entity papersize

[Marco Rodrigues <gothicx@sapo.pt>]

Package: refcard
Version: 5.0.5-1
Severity: important
Justification: fails to build from source

I've tried to build it with pbuilder.

....\
xsltproc --nonet --novalid fo.xsl empty.dbk > empty.fo
warning: failed to load external entity "file:///etc/papersize"
file:///usr/share/xml/docbook/stylesheet/nwalsh/fo/param.xsl:555: parser error : Failure to process entity papersize
  <xsl:variable name="my.paper.type.raw">&papersize;</xsl:variable>
                                                    ^
file:///usr/share/xml/docbook/stylesheet/nwalsh/fo/param.xsl:555: parser error : Entity 'papersize' not defined
  <xsl:variable name="my.paper.type.raw">&papersize;</xsl:variable>
                                                    ^
compilation error: file file:///usr/share/xml/docbook/stylesheet/nwalsh/fo/docbook.xsl line 28 element include
xsl:include : unable to load file:///usr/share/xml/docbook/stylesheet/nwalsh/fo/param.xsl
make[1]: *** [empty.fo] Error 5
make[1]: Leaving directory `/tmp/buildd/refcard-5.0.5'
make: *** [debian/stamp-makefile-build] Error 2

-- System Information:
Debian Release: squeeze/sid
  APT prefers unstable
  APT policy: (700, 'unstable'), (650, 'testing'), (600, 'stable'), (101, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.29-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash