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    <p>Actually looking at the wiki page, I've just updated it since it
      would not have worked if the system PROJ is >= 6.0. The update
      consists in adding  -DPROJ_INTERNAL_CPP_NAMESPACE to CXXFLAGS when
      building PROJ so that C++ symbols of the "internal" proj don't
      clash with the ones of the system PROJ (that was Docker build
      recipees already did)<br>
    </p>
    <div class="moz-cite-prefix">Le 26/08/2021 à 17:35, Even Rouault a
      écrit :<br>
    </div>
    <blockquote type="cite"
      cite="mid:ad13095d-5929-2e31-611a-4c96777fcaf0@spatialys.com">
      <p>Patrick,</p>
      <p>I guess this is at least relevant for the ubuntu-full config
        that uses libspatialite from the distro. This libspatialite must
        link against proj 6.3.1 from the Ubuntu 20.04 distro, whereas
        the GDAL we build will link against the PROJ built in the image,
        so without that trick, crashes would happen.</p>
      <p>Even<br>
      </p>
      <div class="moz-cite-prefix">Le 26/08/2021 à 17:21, Patrick Young
        a écrit :<br>
      </div>
      <blockquote type="cite"
cite="mid:CADXYQQ6kwff0PRVnz+vX4SF-2WBNFJM81=M2GDC67ckqnR05vA@mail.gmail.com">
        <div dir="ltr">Hi,
          <div><br>
          </div>
          <div>I was curious how relevant building an internal PROJ
            library is these days as described in this note</div>
          <div><br>
          </div>
          <div><a
              href="https://trac.osgeo.org/gdal/wiki/BuildingOnUnixGDAL25dev"
              moz-do-not-send="true">https://trac.osgeo.org/gdal/wiki/BuildingOnUnixGDAL25dev</a><br>
          </div>
          <div><br>
          </div>
          <div>I noticed GDAL's docker builds still do this.  Are there
            some common dependencies that still use the older PROJ?</div>
          <div><br>
          </div>
          <div>Many thanks!</div>
          <div>Patrick</div>
        </div>
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      <pre class="moz-signature" cols="72">-- 
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My software is free, but my time generally not.</pre>
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      <pre class="moz-quote-pre" wrap="">_______________________________________________
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    <pre class="moz-signature" cols="72">-- 
<a class="moz-txt-link-freetext" href="http://www.spatialys.com">http://www.spatialys.com</a>
My software is free, but my time generally not.</pre>
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