[Solved]Compile Qt with tslib

Dominik2000

Hello I want to compile Qt 5.2 with tslib for raspberry pi.

I get tslib from git and configured:
sudo ./configure --host=arm-linux --prefix=/home/dominik/opt/tslib/build/ --enable-static --enable-shared

then make && sudo make install
All went ok.

From many tutorials I know that I have to add the generated include and lib folder to qmake so I edit qtbase/mkspecs/devices/linux-rasp-pi-g++/qmake.conf and add:
@QMAKE_INCDIR += /home/dominik/opt/tslib/build/include
QMAKE_LIBDIR += /home/dominik/opt/tslib/build/lib@

then I configure in qtbase:
@./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 -tslib@

I added tslib, so Qt knows to add tslib support. Sadly this gives this error message:
@<srcbase> = /home/dominik/opt/qt5/qtbase
<outbase> = /home/dominik/opt/qt5/qtbase
Creating qmake...
make: Nothing to be done for `first'.
Running configuration tests...
Note: PKG_CONFIG_LIBDIR automatically set to /mnt/rasp-pi-rootfs/usr/lib/pkgconfig:/mnt/rasp-pi-rootfs/usr/share/pkgconfig:/mnt/rasp-pi-rootfs/usr/lib/arm-linux-gnueabihf/pkgconfig
Note: PKG_CONFIG_SYSROOT_DIR automatically set to /mnt/rasp-pi-rootfs
The tslib functionality test failed!
@

Why can't I configure qt??? Do I need to do more things?
The guide I used is: "http://qt-project.org/wiki/RaspberryPi_Beginners_guide"

Please help!

SGaist

Hi and welcome to devnet,

You should run configure with -verbose.

This way you should see the exact error you are encountering

Dominik2000

This is the error in verbose mode:

@/home/dominik/opt/gcc-4.7-linaro-rpi-gnueabihf/bin/arm-linux-gnueabihf-g++ -c -pipe -marm -mfpu=vfp -mtune=arm1176jzf-s -march=armv6zk -mabi=aapcs-linux -mfloat-abi=hard --sysroot=/mnt/rasp-pi-rootfs -O2 -Wall -W -fPIE -I../../../mkspecs/devices/linux-rasp-pi-g++ -I. -o tslib.o tslib.cpp
tslib.cpp:42:19: fatal error: tslib.h: No such file or directory
compilation terminated.
make: *** [tslib.o] Error 1
tslib disabled.
The tslib functionality test failed!
@

Ok he don't find the tslib.h, but it is in the folder which I give to qmake:
@dominik@Linux-Dominik ~/opt/qt5/qtbase $ ls /home/dominik/opt/tslib/build/include
tslib.h
@

I don't get it...

SGaist

Then you should rather add

@-L /home/dominik/opt/tslib/build/lib -I /home/dominik/opt/tslib/build/include@

To your configure command

Dominik2000

Hmm, okay, sorry I thought that it is enough when I write this to qmake.conf.

Now this error occurs:
@/home/dominik/opt/gcc-4.7-linaro-rpi-gnueabihf/bin/arm-linux-gnueabihf-g++ -Wl,-rpath-link,/mnt/rasp-pi-rootfs/opt/vc/lib -Wl,-rpath-link,/mnt/rasp-pi-rootfs/usr/lib/arm-linux-gnueabihf -Wl,-rpath-link,/mnt/rasp-pi-rootfs/lib/arm-linux-gnueabihf --sysroot=/mnt/rasp-pi-rootfs -Wl,-O1 -o tslib tslib.o --sysroot=/mnt/rasp-pi-rootfs -L/home/dominik/opt/tslib/build/lib -lts
/home/dominik/opt/tslib/build/lib/libts.so: file not recognized: File format not recognized
collect2: error: ld returned 1 exit status
make: *** [tslib] Error 1
tslib disabled.
The tslib functionality test failed!
@

SGaist

Then tslib is probably not built for ARM

call

@file /home/dominik/opt/tslib/build/lib/libts.so @

To see what kind of file it is

Dominik2000

It's a symbolic link to this file and the output is this:

@dominik@Linux-Dominik ~/opt/qt5/qtbase $ file /home/dominik/opt/tslib/build/lib/libts-1.0.so.0.0.0
/home/dominik/opt/tslib/build/lib/libts-1.0.so.0.0.0: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, BuildID[sha1]=0x775054f586db43f31d8b8dd1b7ae2738b20e8923, not stripped
@

I see that the architecture is wrong... I will try to rebuild this. At the configure command of tslib is there also a cross compile parameter? Or should the --host=arm-linux be enough?

SGaist

You might also need to tell the configuration script that your are using arm-linux-gcc (adapt the name to your cross-compiler)

Dominik2000

Ok thank you! Now it works! I have used this statement for compiling tslib:

@./configure CC=/home/dominik/opt/gcc-4.7-linaro-rpi-gnueabihf/bin/arm-linux-gnueabihf-gcc CXX=/home/dominik/opt/gcc-4.7-linaro-rpi-gnueabihf/bin/arm-linux-gnueabihf-g++ -host=arm-none-linux-gnueabi target=arm-none-linux-gnueabi -enable-static=yes -enable-shared=yes -prefix=/home/dominik/opt/tslib/build/@

SGaist

You're welcome !

Now that you have tslib working, please update the thread title prepending [solved] so other forum users may know a solution has been found :)

Tannyveer

Sir
please provided me a complete steps to compile tslib with Qt5 already Qt5 is running on my host and raspberry pi machine. now i want to compile tslib for my egalax touchscreen please post the steps to compile it.