Hi Nicklas,
Thanks for the head up. yes I'm aware that almost nobody maintains
Xerces-C anymore. Regarding the Interlis & NAS drivers, they could
certainly be moved to using expat instead (with some effort...). The
GMLAS driver cannot however. It strongly relies on unique capabilities
of Xerces-C related to exposing the content of XML schemas which are
essential to the GMLAS driver, and I'm not aware of any open source
replacement for that. The driver is now used by recent QGIS versions too
for complex feature support for WFS. If Xerces-C was going to be
removed, I guess we'd have to vendor it within the GDAL source tree
Even
Le 20/06/2025 à 09:56, Nicklas Larsson via gdal-dev a écrit :
Hi,
I just want to give a heads up on discussions related to Xerces, which
in the future might affect (the availability) the GDAL drivers
depending on named library.
The maintainer of Xerces noted in November last year:
"I'd strongly advise pulling or at least deprecating (don't know the
official process) all the Macports relying on Xerces, they're all at
risk using this code or Xalan. I am the last maintainer left, I don't
support the Mac for my own software anymore, and once I'm fully off
Xerces in a few years, I seriously doubt it has a future unless
somethiing changes." [1]
Indeed, unless something happens regarding future maintenance of
Xerces, the following drivers might be in the risk zone:
- "INTERLIS 1" and "INTERLIS 2" drivers
- GMLAS - Geography Markup Language (GML) driven by application schemas
- NAS - ALKIS
Maybe expat or libxml2 can be used as replacement?
Best regards,
Nicklas
[1]
https://issues.apache.org/jira/browse/XERCESC-2257?focusedCommentId=17898273&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-17898273
_______________________________________________
gdal-dev mailing list
gdal-dev@lists.osgeo.org
https://lists.osgeo.org/mailman/listinfo/gdal-dev
--
http://www.spatialys.com
My software is free, but my time generally not.
_______________________________________________
gdal-dev mailing list
gdal-dev@lists.osgeo.org
https://lists.osgeo.org/mailman/listinfo/gdal-dev
