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[Bug localedata/18568] Update locale data to Unicode 8.0


https://sourceware.org/bugzilla/show_bug.cgi?id=18568

--- Comment #13 from Carlos O'Donell <carlos at redhat dot com> ---
(In reply to Paul Wise from comment #12)
> On Mon, Jun 29, 2015 at 08:04:58PM +0000, carlos at redhat dot com wrote:
> 
> > Stability. We want to test and validate one version of Unicode
> > data and update the implementation to match.
> 
> Is that testing and validation automated or manual?

In the past the testing and validation was entirely manual, which is why
automatically migrating to a new version of Unicode was difficult and
potentially error prone. With the recent update by the Fedora i18n team (Mike
Fabian, Pravin Satpute) and with help of Alexandre Oliva (Red Hat), we were
able to automate the update of the character encoding and ctype tables. This
update included regression testing scripts that verify backwards compatibility
automatically. So in some ways we have automatic testing for that component of
the locales, but given the broader changes in Unicode 8.0, someone should do
the work and verify the results.

If you want to try update to Unicode 8.0, you can do so by looking at
localedata/unicode-gen/Makefile, updating the external properties files, and
running `make all` in that unicode-gen directory (distinct from glibc build).

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