Make Qt work on apple Silicon

[SGaist]

Hi and welcome to devnet,

Did you check already with Qt 6 ?

[AlexGado]

@SGaist Thank you for your help ! I tried to install the Qt6 binaries but I had the same problems.
Do you want me to build Qt6 from source files ?

[J.Hilk]

The support isn't there quite yet, but it's worked on.

You can check here:
https://bugreports.qt.io/browse/QTBUG-85279

For current progress, and what you can do yourself of right now, to make it work, apparently building Qt yourself my work 🤷‍♂️

[AlexGado]

@J-Hilk Thank you for your answer ! Unfortunately I can’t manage to build qt by myself, I think I will wait for now ...

[roilev]

This post is deleted!

[Justinxiang]

hey I wonder did you solve this problem?becasu i 'm running qt on my apple m1 as well, and obviously, it didn't work very well

[jsulm]

@Justinxiang See https://bugreports.qt.io/browse/QTBUG-85279
It is planed for Qt6.2

[Justinxiang]

@jsulm oh thank u, i suppose i need to wait for a time :(
but i'd like to know do you have any other temporary way to run qt on arm64 mac?

[jsulm]

@Justinxiang You could try to build Qt by yourself which is not an easy task

[Justinxiang]

@jsulm ok, I got your idea, thank u for your reply :)

[KJC94]

@Justinxiang Did u solve this problem by build Qt for arm64?
I encounter same problem when I use opencv lib...

[Rukshan]

Is there a solution for this issue. I have Qt6, but the issue persists.

[Rukshan]

This is the code in .pro. I used homebrew to install opencv4.

QT += core gui

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

CONFIG += c++11
CONFIG += arm64

SOURCES +=
main.cpp
opencvmain.cpp

HEADERS +=
opencvmain.h

FORMS +=
opencvmain.ui

INCLUDEPATH += -I/opt/homebrew/Cellar/opencv/4.5.2_4/include/opencv4
INCLUDEPATH += -I/opt/homebrew/Cellar/opencv/4.5.2_4/lib
INCLUDEPATH += -I/opt/homebrew/Cellar/opencv/4.5.2_4/bin
LIBS += pkg-config --cflags --libs opencv4

LIBS += -framework CoreFoundation
LIBS += -framework IOKit

LIBS += -L/opt/homebrew/Cellar/opencv/4.5.2_4/lib
-lopencv_core
-lopencv_highgui
-lopencv_imgproc
-lopencv_core

QT_CONFIG -= no-pkg-config
CONFIG += link_pkgconfig
PKGCONFIG += opencv4

[jsulm]

@Rukshan said in Make Qt work on apple Silicon:

Is there a solution for this issue

What issue do you mean? Qt built for x86_64?
There is no official M1 ARM builds of Qt yet.
You can either build Qt by yourself or use OpenCV x86_64 build.

[Rukshan]

Thanks for the replay. I have a Mac M1 and I cannot build. I get the following error.

ld: warning: ignoring file /opt/homebrew/Cellar/opencv/4.5.2_4/lib/libopencv_alphamat.dylib, building for macOS-x86_64 but attempting to link with file built for macOS-arm64

Undefined symbols for architecture x86_64:
"cv::Mat::Mat()", referenced from:
_main in main.o
"cv::Mat::~Mat()", referenced from:
_main in main.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [OpenCVDemoB.app/Contents/MacOS/OpenCVDemoB] Error 1
23:02:43: The process "/usr/bin/make" exited with code 2.
Error while building/deploying pro
If Qt does not support M1 could you please recommend a resource that I can follow to build and run opencv.

[jsulm]

@Rukshan said in Make Qt work on apple Silicon:

could you please recommend a resource that I can follow to build and run opencv

https://docs.opencv.org/master/d0/db2/tutorial_macos_install.html

[Rukshan]

@jsulm Thanks I will follow the link.