Details
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Bug
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Resolution: Done
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P2: Important
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6.2.0
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None
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macOS
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1298e1fff53d60661f95bc18a3a824216627bd26 (qt/qtdoc/dev) 0ef5e861d6287331449002f6694d8b1c3097c98a (qt/qtdoc/6.2)
Description
Using the Qt guide for universal builds:
https://doc.qt.io/qt-6/macos.html#architectures
I added the following line to .pro file:
QMAKE_APPLE_DEVICE_ARCHS="x86_64 arm64"
This is on Mac OS Big Sur 11.6, Xcode 12.5.1, Qt Creator 5.0.2, and latest Qt 6.2.0
This is the error:
/Library/Developer/CommandLineTools/usr/bin/clang++ -pipe -stdlib=libc++ -O2 -g -std=gnu++1z -arch x86_64 -arch arm64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=10.14 -Wall -Wextra -dM -E -o moc_predefs.h ../../../../Qt/6.2.0/macos/mkspecs/features/data/dummy.cpp clang: error: cannot use 'c++-cpp-output' output with multiple -arch options make: *** [moc_predefs.h] Error 1 make: *** Waiting for unfinished jobs.... 13 warnings generated. 12:56:19: The process "/usr/bin/make" exited with code 2. Error while building/deploying project P3 (kit: Qt 6.2.0 for macOS) When executing step "Make"
The app compiles fine if I comment out the 1 added line in the pro file for multiple archs. To eliminate the possibility it's our code, I opened a fresh copy of the example project "~/Qt/Examples/Qt-6.2.0/multimediawidgets/player/player.pro"
Ran it as is, compiled and ran fine. Added the single line for universal builds/multiple arch and same error.