QT50-Snapshot on Raspberry Pi

[DarkRidder]

Hello, thanks for the reply!

Yes I considered it, but I went through a lot of problems and, therefore, thought of using this pre-compiled version. Could you guide me through cross-compiling in real-time, so that I solve the problems I have at hand? The tutorial made by ICS didn't turn right for me.

Thanks for all the help you may give!

[SGaist]

You also have this "guide":http://qt-project.org/wiki/RaspberryPi_Beginners_guide

[DarkRidder]

Tryied to do it manuall and with the script. The script can't get the gcc-4.7-linaro, as it comes corrupted (" Saving to: ‘gcc-4.7-linaro-rpi-gnueabihf.tbz’

100%[======================================>] 1.445 --.-K/s in 0s

2014-10-24 22:49:41 (103 MB/s) - ‘gcc-4.7-linaro-rpi-gnueabihf.tbz’ saved [1445/1445]

bzip2: (stdin) is not a bzip2 file.
tar: Child returned status 2
tar: Error is not recoverable: exiting now
Error extracting cross compilation tool "), and manuall I can't get the right gcc-4.7-linaro, and after searching for it on google, I found one that returns this error:
"/home/roque/opt/gcc-4.7-linaro-rpi-gnueabihf/bin/arm-linux-gnueabihf-g++ --sysroot=/mnt/rasp-pi-rootfs -o libtest.so -shared -Wl,-Bsymbolic-functions -fPIC bsymbolic_functions.c
bsymbolic_functions.c:2:2: error: #error "Symbolic function binding on this architecture may be broken, disabling it (see QTBUG-36129)."
#error "Symbolic function binding on this architecture may be broken, disabling it (see QTBUG-36129)."
^
Symbolic function binding disabled.
-reduce-relocations was requested but this compiler does not support it
Re-run configure with -v for more information
"

Also, I can't set ./configure properly because of the above error and lastly, the /qtjsbackend folder does not exist on the git cloned repo.

Sorry for all the amount of information, all of a sudden, but these are the errors I got. I am doing this on a Ubuntu 64-bit 14.04, and I installed ia32-libs. SGaist, I think you are the only one who can help me at this point. What are my alternatives?

[SGaist]

Are you sure the download is valid ?

Anyway, look a bit further down the wiki, you'll see that they recommend the cross-compiler from http://gitorious.org/cross-compile-tools/ which, by the way, is more recent

[DarkRidder]

Still not working SGaist :( Here is a printscreen that might help!

http://i.imgur.com/8AhPVQP.png

Thank you very much for the support!

[SGaist]

Remove the -reduce-relocations from the options like suggested, it should continue after that

[DarkRidder]

That sorted out right, but then, another error and this one I could not fix:
While making it, got this error:
http://i.imgur.com/WY4nyte.png

I tried to ignore it, but on the install got this one:
http://i.imgur.com/Zejtzww.png

Any advice on this?

[SGaist]

Run make without -j to get the error

[DarkRidder]

Same:

http://i.imgur.com/BmyMPEv.png

[EDIT]: I have run just "make" to get to that error.

[SGaist]

It makes it more readable and ensures that you don't have several errors in parallel.

Anyway, I wasn't hit by that one, however, replacing DISPMANX_TRANSFORM_T by VC_IMAGE_TRANSFORM_T should be enough in that case

[DarkRidder]

THank you, all sorted out right now I think! Now doing dd to the sdcard. After I plug it in RPi, I assume that qt is all set up, so if I run qt on terminal it will recognize it, right?

[SGaist]

What do you mean by run Qt on terminal ?

Since you cross-compiled Qt, you should start Qt Creator, Go to the Preferences, in Build and Run add your newly built Qt, make a kit using it. Add a Generic Device in devices and connect it to the Rasberry Pi.

Then create a default application that you'll configure with your Raspberry specific Kit, build, run and enjoy !

[DarkRidder]

Ok, but I need to compile a program that makes use of Qt to run in RaspberryPi, how can I do that?

[SGaist]

That's what the last paragraph describes, just start a new default project, select your Raspberry Kit, hit the run button which will trigger a build and start the application on the Pi (if you correctly add the device in the preferences)

[DarkRidder]

ok, so first things first, How do I do all that? What manuals can I read? I am using Ubuntu (and sorry for my noobish knowledge on this, going for Qt for the first time, and it's not being an easy ride! ).

EDIT: I don't have any Qt environment set-up!

[SGaist]

You don't have Qt Creator installed ? Then you should go and download the Linux package and install it.

Then go through Qt's documentation/tutorials/examples

[DarkRidder]

SGaist, afte rall, there was something wrong with qmake.

http://i.imgur.com/uZcPyoQ.png

Suggestions? I tried again sudo make install on qtbase folder, but reported this:

"
ntConfigVersion.cmake /mnt/rasp-pi-rootfs/usr/local/qt5pi/lib/cmake/Qt5Concurrent/
make[2]: Leaving directory /home/roque/opt/qt5/qtbase/src/concurrent' cd gui/ && ( test -e Makefile || /home/roque/opt/qt5/qtbase/bin/qmake /home/roque/opt/qt5/qtbase/src/gui/gui.pro -o Makefile ) && make -f Makefile install make[2]: Entering directory /home/roque/opt/qt5/qtbase/src/gui'
make[2]: *** No rule to make target /mnt/rasp-pi-rootfs/opt/vc/include/GLES2/gl2.h', needed by .obj/qaccessible.o'. Stop.
make[2]: Leaving directory /home/roque/opt/qt5/qtbase/src/gui' make[1]: *** [sub-gui-install_subtargets] Error 2 make[1]: Leaving directory /home/roque/opt/qt5/qtbase/src'
make: *** [sub-src-install_subtargets] Error 2
roque@Roque-Ubuntu:~/opt/qt5/qtbase$ sudo -e Makefile || /home/roque/opt/qt5/qtbase/bin/qmake /home/roque/opt/qt5/qtbase/src/gui/gui.pro -o Makefile
sudo: Makefile unchanged
roque@Roque-Ubuntu:~/opt/qt5/qtbase$ sudo -e Makefile || /home/roque/opt/qt5/qtbase/bin/qmake /home/roque/opt/qt5/qtbase/src/gui/gui.pro -o Makefile
sudo: Makefile unchanged
"

[EDIT] Also, error output while trying to build:
"Project ERROR: Unknown module(s) in QT: quick
22:56:03: The process "/usr/local/qt5pi/bin/qmake" exited with code 3.
Error while building/deploying project helloworld (kit: Raspberry Pi)
When executing step "qmake"
22:56:03: Elapsed time: 00:00."

[SGaist]

Did you mount your Raspberry Pi fs ?