Your message dated Sat, 17 Nov 2018 21:00:34 +0000
with message-id <[email protected]>
and subject line Bug#897233: fixed in openttd 1.8.0-2
has caused the Debian Bug report #897233,
regarding openttd: Replace ICU ParagraphLayout usage
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
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--
897233: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=897233
Debian Bug Tracking System
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--- Begin Message ---
Package: openttd
Version: 1.7.1-1
Severity: normal
Hi,
OpenTTD currently uses the ICU ParagraphLayout API for doing
internationalized wordwrapping. This usage is a problematic, since
ICU deprecated and removed their layout API for being buggy and
unmaintained. The ParagraphLayout API that OpenTTD uses is still present
in ICU, but it relies on the removed Layout API. This gap can be be
filled using the icu-le-hb library, which implements the layout API on
top of the Harfbuzz library.
However, it seems icu-le-hb is more of a proof of concept and not really
maintained either. Additionally, because ParagraphLayout is in ICU and
icu-le-hb depends on ICU, this gives an undesirable circular dependency
which complicates updating to new ICU versions.
See https://bugs.debian.org/894159 for more info on this, in particular
https://bugs.debian.org/894159#45 and onwards.
It seems it would be beneficial to move away from the ICU
ParagraphLayout API, so it can be removed (OpenTTD is the only user in
Debian), but also because it has indeed proven to be buggy in the past
(OpenTTD talks about ICU-related crashes, though this was before the
icu-le-hb implementation).
In the above linked bug, the following was written:
> > Another solution is of course to disable ParagraphLayout. László also
> > asked if OpenTTD, being the only user of this API, could migrate to
> > another solution. I've discussed this with OpenTTD upstream yesterday,
> > and they were already aware of the layout API removal and have been
> > casually looking at Harfbuzz and Pango as a replacement, but they do not
> > see an easy solution yet. ParagraphLayout seems to fit their usecase
> > quite neatly: they need internationalized word-wrapping of text (e.g.
> > also supporting right-to-left locales). Harfbuzz does not seem to offer
> > that, and Pango seems heavy-handed (and might not be easy to adapt to
> > OpenTTD's SDL renderer, and might not be portable enough).
> This is bad to read. I had the hope there's an easy solution and/or the
> replacement might be already in the making.
>
> > Neither me or upstream has much experience in this field, perhaps you
> > have a different suggestion for an alternative?
> I don't know any other alternative. Only OpenTTD uses the Paragraph Layout
> API and it makes me wonder what other solution the other projects use? I
> may think other games like Lincity-NG[3] also need internationalized text
> placement and/or LibreOffice still need to handle this as well. Do these
> have an alternative solution?
I'm currently dicussing these options with upstream, hopefull we can
find some alternative that works well and is maintained better.
Gr.
Matthijs
--- End Message ---
--- Begin Message ---
Source: openttd
Source-Version: 1.8.0-2
We believe that the bug you reported is fixed in the latest version of
openttd, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Matthijs Kooijman <[email protected]> (supplier of updated openttd package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Format: 1.8
Date: Sat, 17 Nov 2018 19:44:28 +0100
Source: openttd
Binary: openttd openttd-data
Architecture: source
Version: 1.8.0-2
Distribution: unstable
Urgency: medium
Maintainer: Matthijs Kooijman <[email protected]>
Changed-By: Matthijs Kooijman <[email protected]>
Description:
openttd - reimplementation of Transport Tycoon Deluxe with enhancements
openttd-data - common data files for the OpenTTD game
Closes: 897233 910990 913509
Changes:
openttd (1.8.0-2) unstable; urgency=medium
.
* [6a1c164] Backport upstream changes to fix compilation with ICU 61 and
above (Closes: #913509)
* [4dd1430] Bump debhelper version to v11
* [ed01c93] Support DEB_BUILD_OPTIONS=terse
* [c2e35e2] Bump standards version to 4.2.1
* [9b9605a] Stop using the ICU layout engine (Closes: #897233)
* [d5bec9d] Fix cross-building: Supply --pkg-config to ./configure.
Thanks to Helmut Grohne for the patch (Closes: #910990)
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