error building OSCAR from source: unknown warning option

[timpani]

Hi, I am trying to build OSCAR from source following the instructions at https://gitlab.com/pholy/OSCAR-code/-/bl...ILD-mac.md  I'm running on an Intel Mac with Big Sur. When I get to the step to run "make" I get the following 

build@mac-0 build % make
/bin/bash /Users/build/git/OSCAR-code/oscar/update_gitinfo.sh
/Users/build/git/OSCAR-code/oscar/../Building/MacOS/finalize_plist /Users/build/git/OSCAR-code/oscar OSCAR.app/Contents/Info.plist
/Users/build/Qt5.12.8/5.12.8/clang_64/bin/uic ../oscar/daily.ui -o ui_daily.h
/Users/build/Qt5.12.8/5.12.8/clang_64/bin/uic ../oscar/overview.ui -o ui_overview.h
/Users/build/Qt5.12.8/5.12.8/clang_64/bin/uic ../oscar/mainwindow.ui -o ui_mainwindow.h
/Users/build/Qt5.12.8/5.12.8/clang_64/bin/uic ../oscar/oximetry.ui -o ui_oximetry.h
/Users/build/Qt5.12.8/5.12.8/clang_64/bin/uic ../oscar/preferencesdialog.ui -o ui_preferencesdialog.h
/Users/build/Qt5.12.8/5.12.8/clang_64/bin/uic ../oscar/newprofile.ui -o ui_newprofile.h
/Users/build/Qt5.12.8/5.12.8/clang_64/bin/uic ../oscar/exportcsv.ui -o ui_exportcsv.h
/Users/build/Qt5.12.8/5.12.8/clang_64/bin/uic ../oscar/oximeterimport.ui -o ui_oximeterimport.h
/Users/build/Qt5.12.8/5.12.8/clang_64/bin/uic ../oscar/profileselector.ui -o ui_profileselector.h
/Users/build/Qt5.12.8/5.12.8/clang_64/bin/uic ../oscar/aboutdialog.ui -o ui_aboutdialog.h
/Users/build/Qt5.12.8/5.12.8/clang_64/bin/uic ../oscar/welcome.ui -o ui_welcome.h
/Library/Developer/CommandLineTools/usr/bin/clang++ -c -pipe -stdlib=libc++ -Werror -Wno-error=stringop-overread -Wno-error=deprecated-declarations -O2 -std=gnu++11  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=10.12 -Wall -W -fPIC -Dhelpless -DQT_DEPRECATED_WARNINGS -DLOCK_RESMED_SESSIONS -DQT_NO_DEBUG -DQT_PRINTSUPPORT_LIB -DQT_OPENGL_LIB -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_XML_LIB -DQT_SERIALPORT_LIB -DQT_CORE_LIB -I../oscar -I. -I../../../Qt5.12.8/5.12.8/clang_64/lib/QtPrintSupport.framework/Headers -I../../../Qt5.12.8/5.12.8/clang_64/lib/QtOpenGL.framework/Headers -I../../../Qt5.12.8/5.12.8/clang_64/lib/QtWidgets.framework/Headers -I../../../Qt5.12.8/5.12.8/clang_64/lib/QtGui.framework/Headers -I../../../Qt5.12.8/5.12.8/clang_64/lib/QtNetwork.framework/Headers -I../../../Qt5.12.8/5.12.8/clang_64/lib/QtXml.framework/Headers -I../../../Qt5.12.8/5.12.8/clang_64/lib/QtSerialPort.framework/Headers -I../../../Qt5.12.8/5.12.8/clang_64/lib/QtCore.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I. -I../../../Qt5.12.8/5.12.8/clang_64/mkspecs/macx-clang -F/Users/build/Qt5.12.8/5.12.8/clang_64/lib -o checkupdates.o ../oscar/checkupdates.cpp
error: unknown warning option '-Werror=stringop-overread' [-Werror,-Wunknown-warning-option]
make: *** [checkupdates.o] Error 1

My clang version:
Apple clang version 11.0.3 (clang-1103.0.32.62)
Target: x86_64-apple-darwin20.6.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin

[Crimson Nape]

Are you using Qt Creator? If so, did you turn off the "PreCompile" option? Overall, I had better luck doing a command line build than I did using Creator. Also, I gave up on Big Sur and used Mojave to build the Mac version. There seems to be permission settings in Big Sur that I'm not aware of.

Good luck. I hope you find the problem.

[timpani]

I was using command line.  I did not venture into building it through Qt Creator.

I have an older 2015 Mac that has been upgraded already to Big Sur.  Is there a trick to installing Mojave?  Usually Apple doesn't let us install what we want.  I understand I will have to wipe it--that's fine.  There was a boot option that would allow you to install the OS that came with it which would be older than Mojave and I have not tried it recently.  Sierra maybe.

[Crimson Nape]

I have a Linux box that I run Catalina, Mojave, and Big Sur as VMs. On the off chance, did you follow the Build-mac.md?

[timpani]

Yes, I am following the BUILD-mac.md.  

To follow up on my progress, my old 2015 Mac had a keyboard/trackpad failure and I thought I could get into the recovery by using a wired keyboard but that did not work.  So I dusted off my older 2011 Mac and re-installed to High Sierra.  I was able to successfully build OSCAR.  I suspect that it is not a permissions issue because the error I was getting on Big Sir was from the C compiler that the -Werror=stringop-overread option was invalid.  The difference I suspect is between version 11.0.3 and 10.0.0 of the C compiler from Apple's Xcode command line tools for that OS.  I would think it's a Qt issue since that's what is building the makefile. Interestingly, the makefile generated on High Sierra did not have that stringop-overread option.

[Crimson Nape]

Excellent sleuthing! Another member here was reporting having build problems on the Mac w/Big Sur. I hope your findings may help him. I suppose Apple doesn't allow for a downgrade to a previous version?

[timpani]

I should have noticed this warning when I ran the qmake----even with the latest v5 Qt-opensource available in binary 5.12.11:

Project WARNING: Qt has only been tested with version 11.0 of the platform SDK, you're using 11.3.
Project WARNING: This is an unsupported configuration. You may experience build issues, and by using
Project WARNING: the 11.3 SDK you are opting in to new features that Qt has not been prepared for.
Project WARNING: Please downgrade the SDK you use to build your app to version 11.0, or configure
Project WARNING: with CONFIG+=sdk_no_version_check when running qmake to silence this warning.

So I did some digging and found Xcode command line tools 11.0 on Apple's developer site. However, it would not install on Big Sur saying my OS was too new. I suspect this will continue to be an issue until OSCAR supports a version of Qt that works with newer OS. That will be needed soon anyway as the clock is ticking for Rosetta2 support on MacOS. I tried to find out if Qt has support for AppleArm and didn't see anything one way or the other.

Hopefully this thread helps those trying to do the same thing.

[pholynyk]

OSCAR will build with QT 5.15, albeit with a ton of warnings. I'll be cleaning those up after the 1.3.0 release.

Debian 11 has moved to QT 5.15; but OSCAR may still build with QT 5.7 or 5.9. For sure 5.9, because that's what Ubuntu 18.04 uses.

I don't know if that will help you any

[timpani]

OSCAR will build with QT 5.15, albeit with a ton of warnings. I'll be cleaning those up after the 1.3.0 release.

Debian 11 has moved to QT 5.15; but OSCAR may still build with QT 5.7 or 5.9. For sure 5.9, because that's what Ubuntu 18.04 uses.

I don't know if that will help you any

Do I have to build Qt 5.15 from source or are there binaries for it?  I could only find 5.12 binaries on Qt download page but I did see 5.15 source.  I'd be willing to give it a shot.

[pholynyk]

If its not already built on the QT site or the Mac X-Code package, I wouldn't try building from source. In fact I did try with an earlier version, and there were so many cross-linked dependencies that I gave up.

What I have is what was built as part of the Debian 11 release. I'm a little surprised that it's not available for the Mac.