When I configure Qt 5.6, it shows that xcb failed! Why?
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@SGaist Someone told me : "You don't have X11 development packages installed for the arm target, then. Stuff in /usr/include/X11 is for the host, not for the target." However, I wonder how to install the packages for the arm target !
@small_bird In another thread I told you that you need a sysroot to cross compile. The content of /usr on your host PC is completely unrelated to your target device. What is your device? What Linux distribution is running on it (I assume you're using Linux)? You really should read about cross-compiling.
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@small_bird In another thread I told you that you need a sysroot to cross compile. The content of /usr on your host PC is completely unrelated to your target device. What is your device? What Linux distribution is running on it (I assume you're using Linux)? You really should read about cross-compiling.
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@jsulm My device is arm-cortexA8. The linux distribution is based on linux3.2, not a offical distribution. I know what you mean, then where can I get the headers and libraries for the device.
@small_bird So, on your device Ubuntu is running, right?
In that case start it log on on it (remotely over SSH or directly if you can connect a monitor and keyboard) and use apt-get to install all needed packages. -
@small_bird So, on your device Ubuntu is running, right?
In that case start it log on on it (remotely over SSH or directly if you can connect a monitor and keyboard) and use apt-get to install all needed packages.@jsulm I am sorry that I have corrected the answer. According to the offical description, the distribution installed on PC is the same as that on the arm board. So after I use cross-compiler to compile the qt5.6 source code, the libraries it generates should be avaliable for the arm board. Why should I install the packages on the board ?
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@jsulm I am sorry that I have corrected the answer. According to the offical description, the distribution installed on PC is the same as that on the arm board. So after I use cross-compiler to compile the qt5.6 source code, the libraries it generates should be avaliable for the arm board. Why should I install the packages on the board ?
@small_bird Could you please read about cross-compiling?
I already provided a link in one of your threads.
What you need is a sysroot containing libraries AND include files for your target architecture.
Lets say you cross-compile your app which depends on a library. In your code you include header files needed to use that library. Now the question is where are the library and its header files? You cannot use what is installed on your host PC as it is for a different architecture (your PC is most probably x86_64, right?). So, you need a sysroot containing that lib and header files. One way to get that sysroot is to mount the file system from your target device in your PC. If you're using Raspberry Pi (you still didn't say what your device actually is, arm-cortexA8 is not a device it is a CPU architecture) you can just put the SD card into your PC and mount it - then you have a sysroot. -
@small_bird Could you please read about cross-compiling?
I already provided a link in one of your threads.
What you need is a sysroot containing libraries AND include files for your target architecture.
Lets say you cross-compile your app which depends on a library. In your code you include header files needed to use that library. Now the question is where are the library and its header files? You cannot use what is installed on your host PC as it is for a different architecture (your PC is most probably x86_64, right?). So, you need a sysroot containing that lib and header files. One way to get that sysroot is to mount the file system from your target device in your PC. If you're using Raspberry Pi (you still didn't say what your device actually is, arm-cortexA8 is not a device it is a CPU architecture) you can just put the SD card into your PC and mount it - then you have a sysroot.@jsulm Thanks a lot for your patient reply ! My device is OK335XD, you might not hear that.
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@small_bird Could you please read about cross-compiling?
I already provided a link in one of your threads.
What you need is a sysroot containing libraries AND include files for your target architecture.
Lets say you cross-compile your app which depends on a library. In your code you include header files needed to use that library. Now the question is where are the library and its header files? You cannot use what is installed on your host PC as it is for a different architecture (your PC is most probably x86_64, right?). So, you need a sysroot containing that lib and header files. One way to get that sysroot is to mount the file system from your target device in your PC. If you're using Raspberry Pi (you still didn't say what your device actually is, arm-cortexA8 is not a device it is a CPU architecture) you can just put the SD card into your PC and mount it - then you have a sysroot.@jsulm Now I will follow your advice and have a try. Thanks once more !
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@small_bird Could you please read about cross-compiling?
I already provided a link in one of your threads.
What you need is a sysroot containing libraries AND include files for your target architecture.
Lets say you cross-compile your app which depends on a library. In your code you include header files needed to use that library. Now the question is where are the library and its header files? You cannot use what is installed on your host PC as it is for a different architecture (your PC is most probably x86_64, right?). So, you need a sysroot containing that lib and header files. One way to get that sysroot is to mount the file system from your target device in your PC. If you're using Raspberry Pi (you still didn't say what your device actually is, arm-cortexA8 is not a device it is a CPU architecture) you can just put the SD card into your PC and mount it - then you have a sysroot.@jsulm The linux installed on my board does not have apt-get command. It is the edition reduced.
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Can you tell what exactly is running on that board ? It could be a yocto based image or something similar which could potentially simplify the situation.
Also, it seems that we are currently answering in parallel on this thread for exactly the same problem. So I propose to stop the other one and continue here.
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Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct -
Can you tell what exactly is running on that board ? It could be a yocto based image or something similar which could potentially simplify the situation.
Also, it seems that we are currently answering in parallel on this thread for exactly the same problem. So I propose to stop the other one and continue here.
@SGaist It is the linux edition designed by the FORLINX company based on linux3.2 core, not the distribution like ubuntu, etc.
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Ok! I've solved the problem. My cross-compiler edition is wrong. Thank all the people above !
