Mac M1/arm64 support

[reagle]

I was wondering if there's plans for an M1 or universal binary build for Macs?

[hluk]

That would be nice to have but I don't know if Qt already supports the platform and if there is a GitHub Action I could use.

[reagle]

I've read QT6.2 support arm64/m1.

[gibfahn]

Source: https://www.qt.io/blog/qt-on-apple-silicon

[gibfahn]

I'm guessing the key here would be to output a universal app from https://github.com/hluk/CopyQ/blob/master/.github/workflows/build-macos.yml , which apparently is as simple as setting -DCMAKE_OSX_ARCHITECTURES="x86_64;arm64".

Not sure if this would require dropping support for older architectures (or building two packages) though.

[hluk]

Not as simple: https://github.com/hluk/CopyQ/runs/6825744225?check_suite_focus=true

This would require updating the dependencies installed using Homebrew - probably using qt and building the kde-framework stuff with Qt 6 (if it is possible now).

[hluk]

Looks like knotifications do not support Qt 6 on macOS yet: https://github.com/hluk/CopyQ/runs/6828919029?check_suite_focus=true

==>Installing copyq/kde/kf5-knotifications
==>cmake -G Ninja .. -DQT_MAJOR_VERSION=6 -DEXCLUDE_DEPRECATED_BEFORE_AND_AT=5.
==>ninja
Last 15 lines from /Users/runner/Library/Logs/Homebrew/kf5-knotifications/02.ninja:
/usr/local/lib/QtCore.framework/Headers/qprocess.h:179:10: note: 'setReadChannel' declared here
    void setReadChannel(ProcessChannel channel);
         ^
2 errors generated.
[120/138] Building CXX object src/CMakeFiles/KF5Notifications.dir/KF5Notifications_autogen/mocs_compilation.cpp.o
[121/138] Building CXX object src/CMakeFiles/KF5Notifications.dir/knotificationrestrictions.cpp.o
[122/138] Building CXX object src/CMakeFiles/KF5Notifications.dir/kstatusnotifieritem.cpp.o
FAILED: src/CMakeFiles/KF5Notifications.dir/kstatusnotifieritem.cpp.o 
/usr/local/Homebrew/Library/Homebrew/shims/mac/super/clang++ -DHAVE_CANBERRA -DKCOREADDONS_LIB -DKF5Notifications_EXPORTS -DKF_DEPRECATED_WARNINGS_SINCE=0x060000 -DKF_DISABLE_DEPRECATED_BEFORE_AND_AT=0x055900 -DKNOTIFICATIONS_DEPRECATED_WARNINGS_SINCE=0x55a00 -DKNOTIFICATIONS_DISABLE_DEPRECATED_BEFORE_AND_AT=0x55a00 -DQT_CORE_LIB -DQT_DBUS_LIB -DQT_DEPRECATED_WARNINGS_SINCE=0x060000 -DQT_GUI_LIB -DQT_MAC_USE_COCOA -DQT_NO_CAST_FROM_ASCII -DQT_NO_CAST_TO_ASCII -DQT_NO_DEBUG -DQT_NO_FOREACH -DQT_NO_KEYWORDS -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT -DQT_NO_URL_CAST_FROM_STRING -DQT_STRICT_ITERATORS -DQT_USE_QSTRINGBUILDER -DQT_WIDGETS_LIB -D_DARWIN_C_SOURCE -D_LARGEFILE64_SOURCE -I/tmp/kf5-knotifications-20220610-7331-nlroz2/knotifications-5.94.0/build/src -I/tmp/kf5-knotifications-20220610-7331-nlroz2/knotifications-5.94.0/src -I/tmp/kf5-knotifications-20220610-7331-nlroz2/knotifications-5.94.0/build/src/KF5Notifications_autogen/include -isystem /usr/local/lib/QtGui.framework/Headers -iframework /usr/local/lib -isystem /usr/local/lib/QtCore.framework/Headers -isystem /usr/local/share/qt/mkspecs/macx-clang -isystem /usr/local/lib/QtWidgets.framework/Headers -isystem /usr/local/lib/QtDBus.framework/Headers -isystem /usr/local/include/KF6/KCoreAddons -isystem /usr/local/include/KF6/KConfig -isystem /usr/local/include/KF6/KConfigCore -isystem /usr/local/include/KF6/KWindowSystem -fno-operator-names -fno-exceptions -Wno-gnu-zero-variadic-macro-arguments -Wall -Wextra -Wcast-align -Wchar-subscripts -Wformat-security -Wno-long-long -Wpointer-arith -Wundef -Wnon-virtual-dtor -Woverloaded-virtual -Werror=return-type -Werror=init-self -Wvla -Wdate-time -pedantic -Wzero-as-null-pointer-constant -fdiagnostics-color=always -O3 -DNDEBUG -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk -fPIC -fvisibility=hidden -fvisibility-inlines-hidden -fPIC -D_REENTRANT -I/usr/local/Cellar/libcanberra/0.30/include -std=c++17 -MD -MT src/CMakeFiles/KF5Notifications.dir/kstatusnotifieritem.cpp.o -MF src/CMakeFiles/KF5Notifications.dir/kstatusnotifieritem.cpp.o.d -o src/CMakeFiles/KF5Notifications.dir/kstatusnotifieritem.cpp.o -c /tmp/kf5-knotifications-20220610-7331-nlroz2/knotifications-5.94.0/src/kstatusnotifieritem.cpp
/tmp/kf5-knotifications-20220610-7331-nlroz2/knotifications-5.94.0/src/kstatusnotifieritem.cpp:24:10: fatal error: 'QtMac' file not found
#include <QtMac>
         ^~~~~~~
1 error generated.
[123/138] Building CXX object src/CMakeFiles/KF5Notifications.dir/kstatusnotifieritemdbus_p.cpp.o
ninja: build stopped: subcommand failed.

[hluk]

Actually, CopyQ itself needs to be updated to support Qt 6 on macOS because QMacPasteboardMime is no longer supported: https://doc.qt.io/qt-6/extras-changes-qt6.html#changes-to-qt-mac-extras