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<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Yes you’re right, -DLLVM_USE_CRT_RELEASE=MT</span><span lang="EN-CA" style="font-size:11.0pt;font-family:"Calibri",sans-serif">
</span><span lang="EN-CA" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">works indeed! Although the “Visual Studio” cmake generators are multi-config, so you end up with -DCMAKE_BUILD_TYPE=Release being ignored,
which means that if you want to make things right, you would need to also set the other –DLLVM_USE_CRT_XXX values as well, to avoid surprises when switching targets inside VS. For those multi-config generators, reintroducing -DLLVM_USE_CRT would be nice, maybe.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-CA" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="FR" style="font-size:11.0pt;font-family:"Calibri",sans-serif">De :</span></b><span lang="FR" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Reid Kleckner <rnk@google.com>
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<b>Envoyé :</b> October 28, 2019 4:13 PM<br>
<b>À :</b> Alexandre Ganea <alexandre.ganea@ubisoft.com><br>
<b>Cc :</b> Osman Zakir <osmanzakir90@hotmail.com>; llvm-dev <llvm-dev@lists.llvm.org><br>
<b>Objet :</b> Re: [llvm-dev] How to Switch to Static Runtime and Enable C++ Exceptions?<o:p></o:p></span></p>
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<p class="MsoNormal">On Mon, Oct 28, 2019 at 5:11 AM Alexandre Ganea via llvm-dev <<a href="mailto:llvm-dev@lists.llvm.org">llvm-dev@lists.llvm.org</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">You can’t enable the static CRT through the command-line. You would need to apply this patch:
<a href="https://reviews.llvm.org/D55056" target="_blank">https://reviews.llvm.org/D55056</a><br>
(although it doesn’t work with lldb)<o:p></o:p></p>
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<p class="MsoNormal">Are you sure? I would expect `cmake -DLLVM_USE_CRT_RELEASE=MT` to use the static CRT.<o:p></o:p></p>
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<p class="MsoNormal">I think Zach is correct, Osman can use -DLLVM_ENABLE_EH=ON, and it will enable exceptions.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">You're still getting a warning from the benchmark library because LLVM's cmake forcibly disables benchmark library exceptions here:<o:p></o:p></p>
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<p class="MsoNormal"><a href="https://github.com/llvm/llvm-project/blob/2724d9e/llvm/CMakeLists.txt#L1094">https://github.com/llvm/llvm-project/blob/2724d9e/llvm/CMakeLists.txt#L1094</a> <o:p></o:p></p>
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<p class="MsoNormal">That's probably a bug, it should probably be dependent on LLVM_ENABLE_EH.<o:p></o:p></p>
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