Platform plugins and XCB question

[ben80]

ok, i am close to giving up. I guess i am not enough familiar with compiling for linux devices.
I understand that i have to rebuild my qt5, what i already did but it doesn't work for me.

I tried to do the following steps:


1) configure:
Using the option -qt-xcb:

niki@debian:~/opt/qt5/qtbase$ sudo ./configure -opengl es2 -device linux-rasp-pi-g++ -device-option CROSS_COMPILE=~/opt/gcc-4.7-linaro-rpi-gnueabihf/bin/arm-linux-gnueabihf- -sysroot /mnt/rasp-pi-rootfs -opensource -confirm-license -optimized-qmake -reduce-relocations -reduce-exports -release -make libs -prefix /usr/local/qt5pi -qt-xcb -v > outputConfigure.txt

niki@debian:~/opt/qt5/qtbase$ sudo ./configure -opengl es2 -device linux-rasp-pi-g++ -device-option CROSS_COMPILE=~/opt/gcc-4.7-linaro-rpi-gnueabihf/bin/arm-linux-gnueabihf- -sysroot /mnt/rasp-pi-rootfs -opensource -confirm-license -optimized-qmake -reduce-relocations -reduce-exports -release -make libs -prefix /usr/local/qt5pi -qt-xcb -v > outputConfigure.txt

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2) make & make install

sudo make
sudo make install

sudo make
sudo make install

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Then i would expect to find the platform plugin XCB in the folder: /usr/local/qt5pi/plugins/platforms/ -> but it's not!!
There are a bunch of errors and warnings, but these were also there when i compiled qt5 the first time.


3) Copy to sd-card
After the steps above i would copy the rasp-pi-rootfs folder to my sd-card of the raspbery.

4) install xcb dependencies
On my raspberry i would: sudo apt-get install libxcb1-dev

5) compile and deploy my code to the raspberry using QTcreator

6) run
./myApp -platform xcb


I really appreciate your help!
I know it's not easy to work through my problem description.

Ben

[faldzip]

How the libxcb1-dev package can be available in step 1 when you installed it in step 3? Did you check what is in file outputConfigure.txt? First of all it said that configuring failed so builind Qt then was pointless. Then it said:

The test for linking against libxcb failed!
 You might need to install dependency packages for libxcb.
 See src/plugins/platforms/xcb/README.

The test for linking against libxcb failed!
 You might need to install dependency packages for libxcb.
 See src/plugins/platforms/xcb/README.

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Did you checked this file?

And remember to install packages first on the RPi and then copy the sdcard to your sysroot dir, because they are needed in the compile time.