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<p>Hi Andreas,</p>
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<p>What's the error about? Are we talking about the SFINAE concepts by Carsten or the C++20 concepts? The C++20 concepts in DUNE are marked as experimental and conditionally included depending if you have a compiler with concepts support. This is partially
because version 2.10 is meant to be C++17 compatible. Is maybe this check failing and the headers included in your code?</p>
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<p>Best,</p>
<p>Santiago</p>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Dune-devel <dune-devel-bounces@lists.dune-project.org> on behalf of Dedner, Andreas <A.S.Dedner@warwick.ac.uk><br>
<b>Sent:</b> Monday, April 7, 2025 2:49:14 PM<br>
<b>To:</b> dune-devel@lists.dune-project.org<br>
<b>Subject:</b> [Dune-devel] current support gcc version</font>
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Hi.</div>
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I'm having difficulties compiling current dune sources with g++ 9.4 on an older system that I have.</div>
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The issue is the concepts used in dune-common.</div>
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<br>
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I was wondering what the current lowest version for g++ is? On the webpage it says to look into the changelog (very sensible) but there I can only find that g++ >= 9 should work for 2.10 but nothing newer than that. Is there a changelog entry missing or did
I miss it?</div>
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<br>
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Hope everyone is well</div>
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Andreas</div>
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