Does Opensource Qt version 5.12.12 contains patches to compile builds for Apple M1 ? If yes, then what options we need to add in config ?
Thank You
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I'm attempting to use Qt creator to cross-compile a project, but have an issue matching the Qt version and my specified compiler toolchain.
I have created a Kit setting up a Device, selecting my toolchain as the compiler (GCC ARM Linux in this case), but I only have a locally installed system Qt (5.0.2 on Mint x86).
Qt Creator understandably tells me the compiler cannot produce code for the Qt version; all the guides I have found suggest using a Qt compiled for the target platform. This doesn't make sense though - it attempts to run qmake compiled for a different architecture and fails
How do I install or configure/compile a Qt version to work with the cross compiler? Maybe I can modify my existing one to understand this setup?
Thanks
This makes absolutely sense. The advice to use a Qt, which is compiled for your target platform is correct. But this does not mean that you use a Qt that was compiled natively on that target platform. You need to use a Qt, which was compiled with a special cross compiler on your host platform for your target platform. This way qmake and other build tools remain executable on your host, but create configurations for your target.
So, if you have a compiler, which can create ARM code, use it to build your Qt. Then you can create a kit in QtCreator out of this compiler/Qt pair.
Greenflow is right. I would like to add some information. I have cross compiled Qt 5.4.1 on Windows having an ARM Linux as target platform. You just need to configure the build properly. Here's what I did:
./configure -platform win32-g++ -xplatform linux-arm-gnueabihf-g++ .....
So Qt tools (qmake,moc,etc...) were built as Windows binaries and all the libraries were built as Linux binaries. Check for the available platforms in qtbase/mkspecs.
I have some difficulties with QT, which I need for school for some GUI applications.
I have recently done these steps:
1) mingw-get-inst-20120426.exefrom SourceForge installed to C:\MinGW\ with default settings.
2) Qt libraries 4.8.4 for Windows (minGW 4.4, 317 MB) from QT Project installed to C:\Qt\ with default settings. Here an error occurs:
!!!There is a problem with your MinQW instalation
!!!g++ not found in c:\MinGW\bin\
!!!Do you still want to continue? Yes
I checked c:\MinGW\bin\ there is no such file
3) Qt Creator 2.6.0 for Windows (51 MB)also from QT installed to C:\Qt\gtcreator-2.6.0 with default settings
4) Run the QT IDE
5) Open project or create new project. Another error occurs here
!!!No valid kits fond.
Qt Creator uses the invalid kit Desktop to parse the project.
6) Open Options->Build & Run->Kits (But I don't know how should I set Kits and where to find them).
7) Can you also help me, how to set Qt version
(Options->Buid&Run->Qt Version)? Where do I find qmake.exe?
I also didn't find how to create GUI Application. There is no such option in New File or Project...
Thanks for help.
That is quite tricky ;)
Precompiled Qt (MinGW) is only win32 (not win64).
Precompiled Qt is compiled with MinGW-g++ 4.4 and won't work with other.
You have to download this one:
http://get.qt.nokia.com/misc/MinGW-gcc440_1.zip
//// Edit: With this version of MinGW, gdb won't work (it's not python-enabled). Although QtSDK is depracted (and you won't find it on qt-project.org), I highly recommend downloading this online installer and, during the selection of components mark only MinGW. It will come with folder named "pythongdb".
http://www.developer.nokia.com/info/sw.nokia.com/id/da8df288-e615-443d-be5c-00c8a72435f8/Qt_SDK.html
(You may need to register. It's free.)
////
Add "Compiler" by g++.exe
Add "Qt Version" by qmake.exe.
Add "Kit" with Compiler and Qt Version configured above. You can try to change debugger from CDB to GDB.
When you installed mingw, did you select the C++ compiler? It is not selected by default but you need it. Re-run the wizard and select that.
The kit is not valid because the C++ compiler cannot be found: try to install it first. If you still cannot setup this read the manual: http://doc-snapshot.qt-project.org/qtcreator-2.6/creator-targets.html. It is very complete.
qmake.exe is in *qt_directory*/bin/qmake.exe.
Try this out:
http://sourceforge.net/projects/mingw-w64/ (Since the mingw-w64 project on sourceforge.net is moving to mingw-w64.org i suggest to use mingw-w64.org)
It works for me.
I am building my Qt project in Xcode 4.2, using an external build system project (building with 'make'). I have the build system ready and I can build applications, but I can't import Qt code from the code editor. So how do I link against the QtGui.framework and the QtCore.framework in Xcode 4.2 using 'External build system' project settings?
Read the documentation on qmake.
From the pro file you can create a xcode project.
Developers on Mac OS X can take advantage of qmake's support for Xcode project files, as described in Qt is Mac OS X Native, by running qmake to generate an Xcode project from an existing qmake project files. For example:
qmake -spec macx-xcode project.pro
Spend some time in understanding qmake, it will help you a lot.
Can anyone tell me how to build .app extension files through Qt Creator-SDK and MingW? GCC Compiler is also installed.
I have done is
qmake -spec macx-xcode project_name.pro
It created supporting files to create .app extension (when opened in Notepad).
Thank You.
I recommend CMake: it does what it says on the tin: cross-platform make. Integrates nicely with Qt (it's what KDE uses).
I've seen some mkspec for mac or linux using llvm.
Does anyone use an llvm compiled version of Qt ? Or llvm on their Qt Projects ? does it speed up compilation times ? Is your project faster ?
According to this bug compiling Qt using LLVM is not yet possible.
This is not true - Qt can be compiled via llvm-gcc since version 1.9. clang is currently "almost" able to compile Qt fully. Note that the code of Qt is not sometimes standard-compliant :)