[gdal-dev] Reason not to enable gdal --with-threads by default?

[Even Rouault]

I would second configuring GDAL with thread support by default if pthread 
library is available, and turn it off only when --without-threads is 
explicitely passed.

This would be consistant with how proj.4 works for example.

Le lundi 30 août 2010 18:56:26, Dane Springmeyer a écrit :
> In the Mapnik library we open a GDALDataset per thread, for each feature
> query, but have been seeing crashes when rendering large geotiffs.
> 
> I've assumed that GDALDataset was fairly threadsafe in recent revisions as
> per
> (http://trac.osgeo.org/gdal/wiki/FAQMiscellaneous#IstheGDALlibrarythread-s
> afe), but recently learned that you must force --with-threads during
> configure to get this working.
> 
> Once I rebuilt gdal --with-threads all my troubles went away.
> 
> Are there caveats or other reasons not to pass --with-threads during the
> configure stage. E.g. should is not be made default some time in the
> future?
> 
> Thanks,
> 
> Dane
> 
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