[Qgis-developer] Fwd: Re: [gdal-dev] ogr2ogr segfault

[Paolo Cavallini]

Hi all.
Does this imply we have to change the qgis provider for SL?
All the best.


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On Tue, 19 May 2015 11:25:27 +0200, Even Rouault wrote:
> Debian Sid, might be a platform specific issue?
> https://bugs.debian.org/785091
>

few technical details useful to understand better:

a) starting since November 2013 it become definitely clear
   that the older self-registration mechanism based on the
   spatialite_init() API was intrinsically thread unsafe
   and could potentially have very bad interactions with
   the more recent versions of both PROJ.4 and GEOS

b) consequently a public announcement [1] was duly released
   warning about the deprecation of spatialite_init()
   and soliciting developers and maintainers to start
   supporting the alternative thread safe mechanism based
   on spatialite_alloc_connection(), spatialite_init_ex()
   and spatialite_cleanup() APIs.

c) all recent versions of libspatialite, spatialite-tools
   and spatialite_gui are now expected to be fully thread
   safe: and AFAIK the same is for recent versions of GDAL.
   any obsolete version still based on the nowadays deprecated
   spatialite_init() API is potentially at risk when deployed
   in a multithread configuration.

OTH Sandro

[1]
https://groups.google.com/forum/#!searchin/spatialite-users/spatialite_init_ex/spatialite-users/83SOajOJ2JU/sgi5fuYAVVkJ

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