[Qgis-developer] [gdal-dev] GDAL 2.2.0 beta 2 available

[Even Rouault]

> 
> Hum, there might be an intermediate option: revert the change in GDAL 2.2
> branch, and keep it in 2.3dev which will probably be released in one year,
> at a time where QGIS 3 should have been released to.

I've taken another road finally. Build the internal copy of shapelib of QGIS with some 
modifications :
* prefix all the SHP* and DBF* symbols of it with qgis_ to avoid symbol name clashes
* and use GDAL VSI Large file I/O instead of standard lib FILE API so that UTF-8 names are 
properly handled on Windows.

>From my (light) tests, seems to work (on Linux).

==> https://github.com/qgis/QGIS/pull/4413

Even

> 
> > Matthias
> > 
> > On 4/24/17 7:20 PM, Even Rouault wrote:
> > > Hi,
> > > 
> > > > - Shape: do not export Shapelib symbols for builds
> > > > 
> > > > --with-hide-internal-symbols (#6860)
> > > 
> > > It turns out that the above change breaks QGIS 2.18 build, in
> > > particular the DXF2SHP converter native plugin, since it does a nasty
> > > trick: the QGIS build tree has the shapelib 2.10 includes files, but
> > > relies on linking against shapelib symbols exported by libgdal. The
> > > plugin apparently no longer exists in QGIS master, which builds fine
> > > against GDAL 2.2beta2.
> > > 
> > > 
> > > 
> > > So I'm not sure what to do:
> > > 
> > > 1) revert #6860 and export again shapelib symbols from GDAL. But this
> > > apparently breaks some other workflows
> > > 
> > > 2) let distributions apply a patch to do this revert, while they use
> > > QGIS 2.18 or other code that depend on GDAL exporting shapelib symbols
> > > 
> > > 3) Change DXF2SHP plugin to use OGR API instead of shapelib, but I'm
> > > not feeling like I would do that myself.
> > > 
> > > 
> > > 
> > > My opinion would be to favor 2)
> > > 
> > > 
> > > 
> > > Opinions ?
> > > 
> > > 
> > > 
> > > Even
> > > 
> > > 
> > > 
> > > 
> > > Spatialys - Geospatial professional services
> > > 
> > > http://www.spatialys.com
> > > 
> > > 
> > > 
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