Qt 5.7 Coss-Compile with Raspberry Pi 3

ascnp

@kshegunov
I have ubuntu mate on Raspberry. So it automatically install ubuntu version dev. Actually it is almost the same as jessie.

jsulm

@ascnp Can you post the output of configure (at least where it says it cannot find)? You should see what exactly didn't work: header file not found, libs not found, ...

ascnp

@p3c0
I add -v and it shows

the tslib:
checking for tslib...
/home/lxy/Downloads/qt5.7安装/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=/opt/rasp-pi-rootfs-qt5.7 -O2 -Wall -W -fPIC -I. -I/opt/rasp-pi-rootfs-qt5.7/usr/local/tslib -I../../../mkspecs/devices/linux-rasp-pi-g++ -o tslib.o tslib.cpp
tslib.cpp:40:19: fatal error: tslib.h: No such file or directory
compilation terminated.
Makefile:195: recipe for target 'tslib.o' failed
make: *** [tslib.o] Error 1
tslib disabled.
The tslib functionality test failed!

and gstreamer1.0:
checking for GStreamer 1.0...
Project ERROR: gstreamer-audio-1.0 development package not found
GStreamer 1.0 disabled.
The GStreamer 1.0 functionality test failed!

It looks like that I don't install tslib in the correct path. But I don't know where should I install.
I will check if I really install gsreamer-audio-1.0

p3c0

@ascnp Looks like tslib.h is missing in one of the included paths probably /opt/rasp-pi-rootfs-qt5.7/usr/local/tslib

ascnp

@p3c0

$ ls -R
.:
bin etc include lib

./bin:
ts_calibrate ts_harvest ts_print ts_print_raw ts_test

./etc:
ts.conf

./include:
tslib.h

./lib:
libts-0.0.so.0 libts-0.0.so.0.1.1 libts.la libts.so pkgconfig ts

./lib/pkgconfig:
tslib-0.0.pc

./lib/ts:
arctic2.la corgi.la h3600.la linear_h2200.la mk712.la ucb1x00.la
arctic2.so corgi.so h3600.so linear_h2200.so mk712.so ucb1x00.so
collie.la dejitter.la input.la linear.la pthres.la variance.la
collie.so dejitter.so input.so linear.so pthres.so variance.so

As is shown above, tslib.h is in /usr/local/tslib/include.

And I find that I did not have gstreamer1.0-audio. And apt-get can't get gstreamer1.0-audio.

jsulm

@ascnp It should be -I/opt/rasp-pi-rootfs-qt5.7/usr/local/tslib/include
And as this error tells:

Project ERROR: gstreamer-audio-1.0 development package not found

you need gstreamer-audio-1.0 development package

ascnp

@jsulm
yes, it is in /opt/rasp-pi-rootfs-qt5.7/usr/local/tslib/include. Because I run ls -R on raspberry, so it seems in the wrong path. But when I mount SD card on x86 system, it will be in the path as you say.

I am trying to install gstreamer1.0-audio. But apt-get can't find it.

kshegunov

@ascnp said in QT5.7 Coss-Compile with Raspberry Pi 3:

yes, it is in /opt/rasp-pi-rootfs-qt5.7/usr/local/tslib/include.

~~How did it end up there? /usr/local/tslib isn't a standard search location for includes.~~
Edit: Don't mind me, it doesn't really matter as it's passed as an additional include path.

PS
I don't know how correct you are by saying your distro is almost the same as jessie, as jessie doesn't provide libts at all. It appears to be deprecated or something.

jsulm

@ascnp No, what I mean is: you need to pass -I/opt/rasp-pi-rootfs-qt5.7/usr/local/tslib/include instead of -I/opt/rasp-pi-rootfs-qt5.7/usr/local/tslib to configure. Or move the header file one directory up (to /opt/rasp-pi-rootfs-qt5.7/usr/local/tslib).

/home/lxy/Downloads/qt5.7安装/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=/opt/rasp-pi-rootfs-qt5.7 -O2 -Wall -W -fPIC -I. -I/opt/rasp-pi-rootfs-qt5.7/usr/local/tslib -I../../../mkspecs/devices/linux-rasp-pi-g++ -o tslib.o tslib.cpp

Regarding gsreamer-audio-1.0: I don't know what the correct name is. Just list all gstreamer packages and see whether you can find one with audio (maybe gsreamer-alsa-1.0?).

p3c0

@ascnp said in QT5.7 Coss-Compile with Raspberry Pi 3:

@jsulm
yes, it is in /opt/rasp-pi-rootfs-qt5.7/usr/local/tslib/include. Because I run ls -R on raspberry, so it seems in the wrong path. But when I mount SD card on x86 system, it will be in the path as you say.

I am trying to install gstreamer1.0-audio. But apt-get can't find it.

Try installing libgstreamer-plugins-base1.0-dev

ascnp

@kshegunov
I also doubt that the path is not a standard search path, so that qt can not find them. I said "ubuntu mate is almost the same as jessie", which means they are both arm arch and have the same Instruction set, because they can both run on raspberry pi. So they have the same compile tools. I'm a newbie of linux system lol, so I don't know much more about the os. All I want is to finish build qt and start coding. I use qt 5.4.1before, and it is really hard to upgrade software like Qt's version in linux.

@jsulm
I did not find anything like gstreamer-audio. I am going to isntall all I can install about gstreamer1.0 without thinking lol..

@p3c0
After installing libgstreamer-plugins-base1.0-dev, it shows:
checking for GStreamer 1.0...

/home/lxy/Downloads/qt5.7安装/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=/opt/rasp-pi-rootfs-qt5.7 -O2 -pthread -pthread -pthread -pthread -pthread -Wall -W -fPIC  -I. -I/opt/rasp-pi-rootfs-qt5.7/usr/include/gstreamer-1.0 -I/opt/rasp-pi-rootfs-qt5.7/usr/lib/arm-linux-gnueabihf/gstreamer-1.0/include -I/opt/rasp-pi-rootfs-qt5.7/usr/include/glib-2.0 -I/opt/rasp-pi-rootfs-qt5.7/usr/lib/arm-linux-gnueabihf/glib-2.0/include -I../../../mkspecs/devices/linux-rasp-pi-g++ -o gstreamer.o gstreamer.cpp
/home/lxy/Downloads/qt5.7安装/gcc-4.7-linaro-rpi-gnueabihf/bin/arm-linux-gnueabihf-g++ -Wl,-rpath-link,/opt/rasp-pi-rootfs-qt5.7/opt/vc/lib -Wl,-rpath-link,/opt/rasp-pi-rootfs-qt5.7/usr/lib/arm-linux-gnueabihf -Wl,-rpath-link,/opt/rasp-pi-rootfs-qt5.7/lib/arm-linux-gnueabihf -mfloat-abi=hard -Wl,-O1 -o gstreamer gstreamer.o   --sysroot=/opt/rasp-pi-rootfs-qt5.7 -L/opt/rasp-pi-rootfs-qt5.7/usr/lib/arm-linux-gnueabihf -lgstaudio-1.0 -lgstvideo-1.0 -lgstbase-1.0 -lgstpbutils-1.0 -lgstreamer-1.0 -lgobject-2.0 -lglib-2.0
/home/lxy/Downloads/qt5.7安装/gcc-4.7-linaro-rpi-gnueabihf/bin/../lib/gcc/arm-linux-gnueabihf/4.7.2/../../../../arm-linux-gnueabihf/bin/ld: /opt/rasp-pi-rootfs-qt5.7/usr/lib/arm-linux-gnueabihf/libglib-2.0.a(libglib_2_0_la-gthread-posix.o): undefined reference to symbol 'pthread_getspecific@@GLIBC_2.4'
/home/lxy/Downloads/qt5.7安装/gcc-4.7-linaro-rpi-gnueabihf/bin/../lib/gcc/arm-linux-gnueabihf/4.7.2/../../../../arm-linux-gnueabihf/bin/ld: note: 'pthread_getspecific@@GLIBC_2.4' is defined in DSO /opt/rasp-pi-rootfs-qt5.7/lib/arm-linux-gnueabihf/libpthread.so.0 so try adding it to the linker command line
/opt/rasp-pi-rootfs-qt5.7/lib/arm-linux-gnueabihf/libpthread.so.0: could not read symbols: Invalid operation
collect2: error: ld returned 1 exit status
Makefile:92: recipe for target 'gstreamer' failed
make: *** [gstreamer] Error 1
GStreamer 1.0 disabled.
The GStreamer 1.0 functionality test failed!

it seems that I need something else.

jsulm

@ascnp said in QT5.7 Coss-Compile with Raspberry Pi 3:

gnueabihf/bin/ld: note: 'pthread_getspecific@@GLIBC_2.4' is defined in DSO /opt/rasp-pi-rootfs-qt5.7/lib/arm-linux-gnueabihf/libpthread.so.0 so try adding it to the linker command line

This tells you what you need to do: add /opt/rasp-pi-rootfs-qt5.7/lib/arm-linux-gnueabihf as directory for libraries (-L/opt/rasp-pi-rootfs-qt5.7/lib/arm-linux-gnueabihf). It's not related to gstreamer anymore.

ascnp

@jsulm
I add -L/opt/rasp-pi-rootfs-qt5.7/lib/arm-linux-gnueabihf in configure code, but still the same error.

ascnp

I google the error
"libpthread.so.0: could not read symbols: Invalid operation"
and find that it is caused by command linker command line. But I try adding the path to linker command line with -L and ldconfig, but didn't work. And another way to solve this is add -lpthread after ./configer. and it did work. But another error comes.

"/home/lxy/Downloads/qt5.7安装/gcc-4.7-linaro-rpi-gnueabihf/bin/../lib/gcc/arm-linux-gnueabihf/4.7.2/../../../../arm-linux-gnueabihf/bin/ld: /opt/rasp-pi-rootfs-qt5.7/usr/lib/arm-linux-gnueabihf/libglib-2.0.a(libglib_2_0_la-gregex.o): undefined reference to symbol 'pcre_study'
/home/lxy/Downloads/qt5.7安装/gcc-4.7-linaro-rpi-gnueabihf/bin/../lib/gcc/arm-linux-gnueabihf/4.7.2/../../../../arm-linux-gnueabihf/bin/ld: note: 'pcre_study' is defined in DSO /opt/rasp-pi-rootfs-qt5.7/lib/arm-linux-gnueabihf/libpcre.so.3 so try adding it to the linker command line
/opt/rasp-pi-rootfs-qt5.7/lib/arm-linux-gnueabihf/libpcre.so.3: could not read symbols: Invalid operation
collect2: error: ld returned 1 exit status
Makefile:92: recipe for target 'gstreamer' failed
make: *** [gstreamer] Error 1
GStreamer 1.0 disabled."

Linker command line again! And adding to linker command line with ldconfig and -L, but not work again. Now I really don't know how to solve the proble. Is my pkg-config or compile tools broken?

ascnp

I find another strange thing. Before checking gstreamer1.0, qt test system pcre, and the most strange thing is that it sucess!

checking for PCRE...
/home/lxy/Downloads/qt5.7安装/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=/opt/rasp-pi-rootfs-qt5.7 -O2 -Wall -W -fPIC -I. -I/opt/rasp-pi-rootfs-qt5.7/usr/local/tslib/include -I../../../mkspecs/devices/linux-rasp-pi-g++ -o pcre.o pcre.cpp
/home/lxy/Downloads/qt5.7安装/gcc-4.7-linaro-rpi-gnueabihf/bin/arm-linux-gnueabihf-g++ -Wl,-rpath-link,/opt/rasp-pi-rootfs-qt5.7/opt/vc/lib -Wl,-rpath-link,/opt/rasp-pi-rootfs-qt5.7/usr/lib/arm-linux-gnueabihf -Wl,-rpath-link,/opt/rasp-pi-rootfs-qt5.7/lib/arm-linux-gnueabihf -mfloat-abi=hard -Wl,-O1 -o pcre pcre.o --sysroot=/opt/rasp-pi-rootfs-qt5.7 -L/opt/rasp-pi-rootfs-qt5.7/lib/arm-linux-gnueabihf/ -L/opt/rasp-pi-rootfs-qt5.7/usr/lib -L/opt/rasp-pi-rootfs-qt5.7/lib -L/opt/rasp-pi-rootfs-qt5.7/usr/local/tslib/ -lpthread -lpcre -lpcre16
PCRE enabled.

But when cheking gstreamer1.0, the libglib-2.0.a(libglib_2_0_la-gregex.o) has a referebce to pcre_study , and it tried to find libpcre.so.3, but says the lib is not in the linker command line. Why is it? Is that means when qt checking diffenrent part, it will set different linker command line, but not the all-use same lib?