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<p class="MsoNormal"><span>Interestingly, I run into the exact same error since yesterday. Last week I was able to build <span class="SpellE">PyQt</span> 5.15.9 using qt5/<span class="SpellE">qmake</span> from brew without any issues. It stopped working suddenly and the only change I on my system I can think of was the update from the <span class="SpellE">Xcode</span> command line tools from version 14 to 15. However, I am not aware if any of the compilers/tools from <span class="SpellE">Xcode</span> are involved in building <span class="SpellE">PyQt</span>: I provided more details here: <a href="https://stackoverflow.com/questions/77145961/installing-pyqt5-on-arm64-stopped-working-all-of-a-sudden-some-sip-issue" target="_blank">https://stackoverflow.com/questions/77145961/installing-pyqt5-on-arm64-stopped-working-all-of-a-sudden-some-sip-issue</a></span></p>

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<p class="MsoNormal"><span>It’s a wild guess, but maybe you also updated to <span class="SpellE">Xcode</span> 15 @Nick Guenther</span></p>
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