Unicode Character Database

[Florian Weimer <fw@deneb.enyo.de>]

First of all, let's suppose that the license is DFSG free.  It's:

| UCD Terms of Use
| 
| Disclaimer
| 
|     The Unicode Character Database is provided as is by Unicode,
|     Inc. No claims are made as to fitness for any particular
|     purpose. No warranties of any kind are expressed or implied. The
|     recipient agrees to determine applicability of information
|     provided. If this file has been purchased on magnetic or optical
|     media from Unicode, Inc., the sole remedy for any claim will be
|     exchange of defective media within 90 days of receipt.
| 
|     This disclaimer is applicable for all other data files
|     accompanying the Unicode Character Database, some of which have
|     been compiled by the Unicode Consortium, and some of which have
|     been supplied by other sources.
| 
| Limitations on Rights to Redistribute This Data
| 
|     Recipient is granted the right to make copies in any form for
|     internal distribution and to freely use the information supplied
|     in the creation of products supporting the Unicode Standard. The
|     files in the Unicode Character Database can be redistributed to
|     third parties or other organizations (whether for profit or not)
|     as long as this notice and the disclaimer notice are retained.
|     Information can be extracted from these files and used in
|     documentation or programs, as long as there is an accompanying
|     notice indicating the source.
| 
|     The file Unihan.txt contains older and inconsistent Terms of
|     Use. That language is overridden by these terms.

However, many packages that include a copy of parts of the UCD do not
indicate the source (I would expect such a notice in the
debian/copyright file) and are thus violating the license.

Comments?