I built Qt Everywhere for beaglebone black (OS Debian) but fail, somebody used to built it success can help me?

Dang Vu

i built qt-everywhere 5.7.0 for beaglebone black( OS debian) but i can't succesed! i found some tutorial in google but it not work because one error... opengl es2! if i skip it( -skip opengl es2) then i run application in beaglebone it anoucement: "no eglfs", if configure have -opengl es2 then i have error:

/pulseaudio.cpp:40:30: fatal error: pulse/pulseaudio.h: No such file or directory
compilation terminated.
Makefile:192: recipe for target 'pulseaudio.o' failed
make: *** [pulseaudio.o] Error 1
PulseAudio disabled.
checking for OpenGL ES 2.0... 
arm-linux-gnueabihf-g++ -c -pipe -march=armv7-a -mtune=cortex-a8 -mfpu=neon -mthumb -march=armv7-a -mtune=cortex-a8 -mfpu=neon -mthumb -mfloat-abi=hard -O2 -O3 -Wall -W -fPIC  -I. -I../../../mkspecs/devices/linux-beagleboard-g++ -o opengles2.o opengles2.cpp
arm-linux-gnueabihf-g++ -mfloat-abi=hard -Wl,-O1 -o opengles2 opengles2.o   -lrt -lpthread -ldl -lGLESv2 -lEGL -lIMGegl -lsrv_um 
/usr/lib/gcc-cross/arm-linux-gnueabihf/5/../../../../arm-linux-gnueabihf/bin/ld: cannot find -lGLESv2
/usr/lib/gcc-cross/arm-linux-gnueabihf/5/../../../../arm-linux-gnueabihf/bin/ld: cannot find -lEGL
/usr/lib/gcc-cross/arm-linux-gnueabihf/5/../../../../arm-linux-gnueabihf/bin/ld: cannot find -lIMGegl
/usr/lib/gcc-cross/arm-linux-gnueabihf/5/../../../../arm-linux-gnueabihf/bin/ld: cannot find -lsrv_um
collect2: error: ld returned 1 exit status
Makefile:90: recipe for target 'opengles2' failed
make: *** [opengles2] Error 1
OpenGL ES 2.0 disabled.
The OpenGL ES 2.0 functionality test failed!
 Use of pkg-config is not enabled, maybe you want to pass -pkg-config?
 You might need to modify the include and library search paths by editing
 QMAKE_INCDIR_OPENGL_ES2, QMAKE_LIBDIR_OPENGL_ES2 and QMAKE_LIBS_OPENGL_ES2 in
 /home/ngocvu/Downloads/qt-everywhere-opensource-src-5.7.0/qtbase/mkspecs/devices/linux-beagleboard-g++.

I try Mesa( i fail to built it for arm) but some people in here tell me: i don't need built Mesa!
i can't find solution to built qt5.7! then...some body used to built qt-everywhere 5.7.0 for beaglebone( OS debian) can help me? i need a tutorial or link in different website! i built success qt4.8.6 but version QT 5. is different, i fail in here! thanks for read!

jsulm

@Dang-Vu
You don't have to build Mesa by yourself - Debian already provides it, just install needed packages.

fatal error: pulse/pulseaudio.h: No such file or directory

means that pulseaudio header files are not present. You need to install pulseaudio Debian packages (including -dev packages) if you want to use audio in your Qt apps (else you can ignore this issue).

jsulm

@Dang-Vu Install these packages on your target device: libgl1-mesa-dev, libgles2-mesa-dev

Dang Vu

@jsulm

libgl1-mesa-dev is already the newest version (11.2.0-1ubuntu2.2).
libgles2-mesa-dev is already the newest version (11.2.0-1ubuntu2.2).

my issues is Opengl es2, Sir!
i configure Qt right or wrong Sir?

./configure -v -opensource -confirm-license -prefix /usr/local/qt-5.7 -no-largefile -no-accessibility -qt-xcb -opengl es2 -eglfs -qt-zlib -no-gif -qt-libpng -qt-libjpeg -no-nis -skip qtpurchasing -skip qtcanvas3d -no-cups -xplatform linux-linaro-gnueabihf-g++ -device linux-beagleboard-g++ -device-option CROSS_COMPILE=arm-linux-gnueabihf-

if i don't have a opengl es2 in configure i will lost a " libqeglfs.so, libqlinuxfb.so, libqminimalegl.so" file ! and i built QT-everywhere in Linux host use OS Ubuntu, not Debian! Debian use by beaglebone black!

jsulm

@Dang-Vu Did you install these packages on your Debian target device?
It doesn't matter at all what you install on your Ubuntu host PC as you want to cross compile for your Debian target device.
So please make sure you have those packages on your target device!
You need to understand how cross compilation works: you need libraries for your target device not your host build machine. You cannot use your Ubuntu x86 libraries on your ARM Debian device.
libgles2-mesa-dev - this one should be OpenGLES

jsulm

@Dang-Vu Also in your configure line I cannot find -sysroot parameter which should point to your sysroot. See http://doc.qt.io/qt-5.7/configure-options.html
"Note: Toolchains for non-desktop targets often come with a so-called sysroot which Qt needs to be configured against."

http://doc.qt.io/qt-5.7/embedded-linux.html#configuring-a-specific-device
"Building Qt for a given device requires a toolchain and a sysroot."
"The most important parameters are -device and -sysroot. By specifying -sysroot, the include files and libraries used by configure's feature detection tests, as well as Qt itself, is taken from the specified location, instead of the host PC's standard locations."

Dang Vu

@jsulm said in i built qt-everywhere for beaglebone black( OS Debian) but fail, somebody used to built it success can help me?:

Also in your configure line I cannot find -sysroot parameter which should point to your sysroot. See http://doc.qt.io/qt-5.7/configure-options.html
"Note: Toolchains for non-desktop targets often come with a so-called sysroot which Qt needs to be configured against."
http://doc.qt.io/qt-5.7/embedded-linux.html#configuring-a-specific-device
"Building Qt for a given device requires a toolchain and a sysroot."
"The most important parameters are -device and -sysroot. By specifying -sysroot, the include files and libraries used by configure's feature detection tests, as well as Qt itself, is taken from the specified location, instead of the host PC's standard locations."

it's mean i must connect beagle bone device to host computer while built? i don't understand about sysroot! sir! i read some document tell about: " -sysroot /pathtothe/rootfs" but i don't know what it's! Sir!

./configure -v -opensource -confirm-license -qt-xcb -no-xinput2 -no-tslib -nomake examples -nomake tests -sysroot /pathtothe/rootfs -prefix /path_to_install/bbb-qt-5.5.1 -xplatform linux-linaro-gnueabihf-g++ -device linux-beagleboard-g++ -device-option CROSS_COMPILE=/usr/bin/arm-linux-gnueabihf-

jsulm

@Dang-Vu Basically a sysroot is the file system (or part of it) of your target device. You need a sysrott because it contains needed libraries and header files for your target device. There are several possibilities to get a sysroot:

Sometimes the vendor provides a SDK which contains a sysroot
You can connect the SDCard, hard drive, or what ever storage your device uses, to your host PC
You can use NFS to mount the root file system of your target device over network (I do this with my RaspberryPi)

I don't know which option is the best one for you. If you use a SDCard in your target device then you can just put that SDCard into your PC, mount it somewhere (for example in /media/sdcard) and use that directory as sysroot:

-sysroot /media/sdcard

[edit: Fixed network mount type name SGaist]

Dang Vu

@jsulm, the Firts thank you for reply me! it's my honor! about your disposal, i understand like: i need a connect SD card contain a BBB-eMMC-flasher-debian-8.2-lxqt-2gb-armhf-2015-11-29-2gb.img ( curentl version my beagle use, in picture alt text ) and mount it( /media/ngocvu/rootfs) , after i configure QT below:

./configure -v -opensource -confirm-license -prefix /usr/local/qt-5.7 -no-largefile -no-accessibility -sysroot /media/ngocvu/rootfs -opengl es2 -eglfs -qt-zlib -no-gif -qt-libpng -qt-libjpeg -no-nis -skip qtpurchasing -skip qtcanvas3d -no-cups -xplatform linux-linaro-gnueabihf-g++ -device linux-beagleboard-g++ -device-option CROSS_COMPILE=arm-linux-gnueabihf-

but it's not work, old error:

checking for OpenGL ES 2.0... 
arm-linux-gnueabihf-g++ -c -pipe -march=armv7-a -mtune=cortex-a8 -mfpu=neon -mthumb -march=armv7-a -mtune=cortex-a8 -mfpu=neon -mthumb -mfloat-abi=hard --sysroot=/media/ngocvu/rootfs -O2 -O3 -Wall -W -fPIC  -I. -I../../../mkspecs/devices/linux-beagleboard-g++ -o opengles2.o opengles2.cpp
opengles2.cpp:43:25: fatal error: GLES2/gl2.h: No such file or directory
compilation terminated.
Makefile:192: recipe for target 'opengles2.o' failed
make: *** [opengles2.o] Error 1
OpenGL ES 2.0 disabled.
The OpenGL ES 2.0 functionality test failed!
 You might need to modify the include and library search paths by editing
 QMAKE_INCDIR_OPENGL_ES2, QMAKE_LIBDIR_OPENGL_ES2 and QMAKE_LIBS_OPENGL_ES2 in
 /home/ngocvu/Downloads/qt-everywhere-opensource-src-5.7.0/qtbase/mkspecs/devices/linux-beagleboard-g++.

i wrong step?!!

jsulm

@Dang-Vu You need a sysroot with installed OpenGL ES packages. So, you should NOT use the *.img file, because it does not yet contain those packages. Instead you boot your device, log on on it and install needed packages (apt-get install libgles2-mesa-dev). Then you shut down the device, put the SDCard in your PC and try again.

Dang Vu

@jsulm said in i built qt-everywhere for beaglebone black( OS Debian) but fail, somebody used to built it success can help me?:

You need a sysroot with installed OpenGL ES packages. So, you should NOT use the *.img file, because it does not yet contain those packages. Instead you boot your device, log on on it and install needed packages (apt-get install libgles2-mesa-dev). Then you shut down the device, put the SDCard in your PC and try again.

i think it possible Sir? because my beaglebone can install debian from SD card into Flash memory of beaglebone, after it can work without SD card! but i will try again! P/s: my SD card contain a file extracted( i use Disk Image to write data from debian.img to Sd card) ! i usually use it't for install OS for Beaglebone!

jsulm

@Dang-Vu Such image files usually do not contain everything. I'm quite sure the image file does not contain OpenGL ES header files.
An easier solution is to mount the root file system of your target device on your PC via NFS, see https://wiki.ubuntuusers.de/NFS/
Ubuntu and Debian are very similar, so you can do it as described there.

Dang Vu

@jsulm Dear Sir, i try but i have a problem with -sysroot! when i have a path -sysroot /media/ngocvu/rootfs ( i compress a rootfs in https://docs.google.com/uc?id=0BxlMhouhD6_YSmFlaExyVHJUTlU&export=download , full opengl, gcc,g++, linaro toolchains you can download and see it)

checking for C++11... 
arm-linux-gnueabihf-g++ -c -pipe -march=armv7-a -mtune=cortex-a8 -mfpu=neon -mthumb -march=armv7-a -mtune=cortex-a8 -mfpu=neon -mthumb -mfloat-abi=hard --sysroot=/usr/bin/ -O2 -O3 -std=gnu++11 -Wall -W -fPIC  -I. -I../../../mkspecs/devices/linux-beagleboard-g++ -o c++11.o c++11.cpp
c++11.cpp:46:19: fatal error: utility: No such file or directory
 #include <utility>
                   ^
compilation terminated.
make: *** [c++11.o] Error 1
C++11 disabled.
ERROR: Qt requires a C++11 compiler and yours does not seem to be that.
Please upgrade.

if don't have -sysroot /media/ngocvu/rootfs , configure will good work!
i don't understand that error! i was installed g++ version g++ (Ubuntu 4.8.4-2ubuntu1~14.04.3) 4.8.4

jsulm

This post is deleted!

jsulm

@Dang-Vu Can you please post the output of

arm-linux-gnueabihf-g++ --version

?
How did you call configure?
What is inside /media/ngocvu/rootfs ?

Dang Vu

@jsulm ouput g++ version:

arm-linux-gnueabihf-g++ (Ubuntu/Linaro 4.8.4-2ubuntu1~14.04.1) 4.8.4
Copyright (C) 2013 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE

.my configure

./configure -v -opensource -confirm-license -prefix /usr/local/qt-5.7 -no-largefile -no-accessibility -sysroot /media/ngocvu/rootfs -opengl es2 -eglfs -qt-zlib -no-gif -qt-libpng -qt-libjpeg -no-nis -skip qtpurchasing -skip qtcanvas3d -no-cups -xplatform linux-linaro-gnueabihf-g++ -device linux-beagleboard-g++ -device-option CROSS_COMPILE=arm-linux-gnueabihf-

in inside the /media/ngocvu/rootfs is debian image, ecxactly is a "/" of OS debian run in SD card! without SD card it cannot run!) and i upload it folder to google drive! it's link https://docs.google.com/uc?id=0BxlMhouhD6_YSmFlaExyVHJUTlU&export=download

jsulm

@Dang-Vu Can you execute

find /media/ngocvu/rootfs -name utility

and post the output?
You probably did not install needed dev packages on your target, so header files like "utility" are missing.

Dang Vu

@jsulm my output find /media/ngocvu/rootfs -name utility, Sir!

./opt/source/Userspace-Arduino/utility
./usr/include/c++/4.9/tr1/utility
./usr/include/c++/4.9/utility

jsulm

@Dang-Vu That line is wrong:

--sysroot=/usr/bin

it tells the compiler to look in /usr/bin/include for header files which is wrong.
I don't know why this parameter is passed to the compiler. Maybe it comes from your previous attempts to cross-compile?
Do you call configure script from the directory where Qt source code is located?
If so then please extract Qt sources again and call configure from another directory to do a clean "out of source build".

Dang Vu

This post is deleted!