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<p>Hi Andrew,</p>
<p>openmp is enabled when available since
<a class="moz-txt-link-freetext" href="https://github.com/OSGeo/gdal/commit/2a3f06b90f2d68da446451a44090aa38fd6f4b5a#diff-c6d7b93ff4bf010c2c6218c9329af9afb9a00aab7871175046a9b50f26826452R435">https://github.com/OSGeo/gdal/commit/2a3f06b90f2d68da446451a44090aa38fd6f4b5a#diff-c6d7b93ff4bf010c2c6218c9329af9afb9a00aab7871175046a9b50f26826452R435</a>
. What is your clang version ? That warning are not shown on our
clang based CI configurations up to now.</p>
<p>Even</p>
<div class="moz-cite-prefix">Le 05/01/2026 à 18:25, Andrew Bell via
gdal-dev a écrit :<br>
</div>
<blockquote type="cite"
cite="mid:CACJ51z1T06xGRCYaXDcTQ6jpJXxA=C+TV41i1Rq2=hqKn-ZHCw@mail.gmail.com">
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<div>Hi,<br>
<br>
I updated to the latest master and am now seeing the following
warning during compilation:<br>
<br>
[156/1486] Building CXX object
alg/CMakeFiles/alg.dir/thinplatespline.cpp.o<br>
clang: warning: argument unused during compilation: '-Xclang
-fopenmp' [-Wunused-command-line-argument]<br>
<br>
If anyone has some info on this, please let me know.<br>
<br>
</div>
<span class="gmail_signature_prefix">-- </span><br>
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data-smartmail="gmail_signature">
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<div>Andrew Bell</div>
<a href="mailto:andrew.bell.ia@gmail.com" target="_blank"
moz-do-not-send="true" class="moz-txt-link-freetext">andrew.bell.ia@gmail.com</a></div>
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<br>
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</blockquote>
<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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