Many locales do not contain explicit licencing information;
some do (e.g. an_ES is GPL, which I wonder whether it qualifies
for such data) but there is no consensus of which to take.

Even worse, some (like az_AZ) contain only:
% Distribution and use is free, also
% for commercial purposes.

This does not allow modification, and as such is non-free.

Furthermore, some others (like fy_DE) seem to merely
copy’n’paste them and truncate in the process:
% Distribution and use is

Please contact all of the authors of these locale data
files and ask them to assign copyright to the FSF, as
is normal with glibc contributions anyway. Then, put
all of them under an appropriate licence (if it has to
be a copyleft licence, I’d say LGPL…) which should be
DFSG-free optimally.

The original bug report can be viewed here:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=555168
This is my (personal) summary of the problem.

-- 
           Summary: localedata licencing issues
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: critical
          Priority: P3
         Component: localedata
        AssignedTo: libc-locales at sources dot redhat dot com
        ReportedBy: tg at mirbsd dot de
                CC: glibc-bugs at sources dot redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=11213

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