How to build Qt on system without a GUI?

BrMisha

Hi everyone!
I have the Analog devices board with ARMv7 and there isn't any GUI (I working througth SSH) so i'm getting a lot of errors if i follow this https://doc.qt.io/qt-5/linux-building.html .
How can I build Qt on this device? I need latest Qt.
I already lost the second day with this problem(((
Thank you so much for any help! And sorry for my English, i'm just studing)))

bludger

Tell us a bit more. Are you trying to cross compile Qt for ARMv7 or are you building Qt on the device itself?
What errors do you get? Please show us your configure command.

BrMisha

I'm building on the device itself.
Latest configure commands:

./configure -opensource \
    -confirm-license \
    -nomake examples \
    -skip qtquickcontrols \
    -skip qtwebkit \
    -skip qtwebchannel \
    -skip qtactiveqt \
    -skip qtandroidextras \
    -skip qtdeclarative \
    -skip qtimageformats \
    -skip qtmacextras \
    -skip qtx11extras \
    -skip qtxmlpatterns \
    -skip qtconnectivity \
    -skip qtdoc \
    -skip qtenginio \
    -skip qtgraphicaleffects \
    -skip qtmultimedia \
    -skip qtquick1 \
    -skip qtsensors \
    -skip qttools \
    -skip qttranslations \
    -skip qtwayland \
    -skip qtwebchannel \
    -skip qtwebengine \
    -skip qtwebkit-examples \
    -skip qtwebsockets \
    -skip qtwinextras \
    -verbose \
    -no-gif \
    -no-libjpeg \
    -no-mtdev \
    -no-sql-db2 \
    -no-sql-ibase \
    -no-sql-mysql \
    -no-xcb \
    -qt-freetype \
    -no-fontconfig \
    -no-harfbuzz \
    -no-xinput2 \
    -no-xcb-xlib \
    -no-pulseaudio \
    -no-alsa \
    -no-gtkstyle \
    -no-nis \
    -no-cups \
    -no-iconv \
    -no-icu \
    -no-eglfs

Then i did "make -j 2" (there is 2 cores) and in about hourse i got this:

e/QtGui -I../../../../include/QtCore/5.13.0 -I../../../../include/QtCore/5.13.0/QtCore -I../../../../include/QtCore -I.moc -isystem /usr/include/libdrm -I../../../../mkspecs/linux-g++ -o .obj/qcomposeplatforminputcontext.o qcomposeplatforminputcontext.cpp
In file included from qcomposeplatforminputcontext.cpp:39:0:
qcomposeplatforminputcontext.h:46:41: fatal error: xkbcommon/xkbcommon-compose.h: No such file or directory
 #include <xkbcommon/xkbcommon-compose.h>
                                         ^
compilation terminated.
make[5]: *** [.obj/qcomposeplatforminputcontext.o] Error 1
make[5]: Leaving directory `/home/analog/qt-everywhere-src-5.13.0/qtbase/src/plugins/platforminputcontexts/compose'
make[4]: *** [sub-compose-make_first] Error 2
make[4]: Leaving directory `/home/analog/qt-everywhere-src-5.13.0/qtbase/src/plugins/platforminputcontexts'
make[3]: *** [sub-platforminputcontexts-make_first] Error 2
make[3]: *** Waiting for unfinished jobs....
g++ -c -pipe -O2 -std=c++1y -fvisibility=hidden -fvisibility-inlines-hidden -fno-exceptions -Wall -W -Wvla -Wno-missing-field-initializers -D_REENTRANT -fPIC -DQT_NO_FOREACH -DQT_DEPRECATED_WARNINGS -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT -DQT_NO_EXCEPTIONS -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -DQT_NO_DEBUG -DQT_PLUGIN -DQT_SERVICE_SUPPORT_LIB -DQT_THEME_SUPPORT_LIB -DQT_FB_SUPPORT_LIB -DQT_EVENTDISPATCHER_SUPPORT_LIB -DQT_FONTDATABASE_SUPPORT_LIB -DQT_INPUT_SUPPORT_LIB -DQT_GUI_LIB -DQT_DEVICEDISCOVERY_SUPPORT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -I../../../../include -I../../../../include/QtServiceSupport -I../../../../include/QtServiceSupport/5.13.0 -I../../../../include/QtServiceSupport/5.13.0/QtServiceSupport -I../../../../include/QtThemeSupport -I../../../../include/QtThemeSupport/5.13.0 -I../../../../include/QtThemeSupport/5.13.0/QtThemeSupport -I../../../../include/QtFbSupport -I../../../../include/QtFbSupport/5.13.0 -I../../../../include/QtFbSupport/5.13.0/QtFbSupport -I../../../../include/QtEventDispatcherSupport -I../../../../include/QtEventDispatcherSupport/5.13.0 -I../../../../include/QtEventDispatcherSupport/5.13.0/QtEventDispatcherSupport -I../../../../include/QtFontDatabaseSupport -I../../../../include/QtFontDatabaseSupport/5.13.0 -I../../../../include/QtFontDatabaseSupport/5.13.0/QtFontDatabaseSupport -I../../../../include/QtInputSupport -I../../../../include/QtInputSupport/5.13.0 -I../../../../include/QtInputSupport/5.13.0/QtInputSupport -I../../../../include/QtGui/5.13.0 -I../../../../include/QtGui/5.13.0/QtGui -I../../../../include/QtGui -I../../../../include/QtDeviceDiscoverySupport -I../../../../include/QtDeviceDiscoverySupport/5.13.0 -I../../../../include/QtDeviceDiscoverySupport/5.13.0/QtDeviceDiscoverySupport -I../../../../include/QtCore/5.13.0 -I../../../../include/QtCore/5.13.0/QtCore -I../../../../include/QtNetwork -I../../../../include/QtDBus -I../../../../include/QtCore -I.moc -isystem /usr/include/libdrm -I../../../../mkspecs/linux-g++ -o .obj/moc_qvnc_p.o .moc/moc_qvnc_p.cpp
g++ -c -pipe -O2 -std=c++1y -fvisibility=hidden -fvisibility-inlines-hidden -fno-exceptions -Wall -W -Wvla -Wno-missing-field-initializers -D_REENTRANT -fPIC -DQT_NO_FOREACH -DQT_DEPRECATED_WARNINGS -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT -DQT_NO_EXCEPTIONS -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -DQT_NO_DEBUG -DQT_PLUGIN -DQT_SERVICE_SUPPORT_LIB -DQT_THEME_SUPPORT_LIB -DQT_FB_SUPPORT_LIB -DQT_EVENTDISPATCHER_SUPPORT_LIB -DQT_FONTDATABASE_SUPPORT_LIB -DQT_INPUT_SUPPORT_LIB -DQT_GUI_LIB -DQT_DEVICEDISCOVERY_SUPPORT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -I../../../../include -I../../../../include/QtServiceSupport -I../../../../include/QtServiceSupport/5.13.0 -I../../../../include/QtServiceSupport/5.13.0/QtServiceSupport -I../../../../include/QtThemeSupport -I../../../../include/QtThemeSupport/5.13.0 -I../../../../include/QtThemeSupport/5.13.0/QtThemeSupport -I../../../../include/QtFbSupport -I../../../../include/QtFbSupport/5.13.0 -I../../../../include/QtFbSupport/5.13.0/QtFbSupport -I../../../../include/QtEventDispatcherSupport -I../../../../include/QtEventDispatcherSupport/5.13.0 -I../../../../include/QtEventDispatcherSupport/5.13.0/QtEventDispatcherSupport -I../../../../include/QtFontDatabaseSupport -I../../../../include/QtFontDatabaseSupport/5.13.0 -I../../../../include/QtFontDatabaseSupport/5.13.0/QtFontDatabaseSupport -I../../../../include/QtInputSupport -I../../../../include/QtInputSupport/5.13.0 -I../../../../include/QtInputSupport/5.13.0/QtInputSupport -I../../../../include/QtGui/5.13.0 -I../../../../include/QtGui/5.13.0/QtGui -I../../../../include/QtGui -I../../../../include/QtDeviceDiscoverySupport -I../../../../include/QtDeviceDiscoverySupport/5.13.0 -I../../../../include/QtDeviceDiscoverySupport/5.13.0/QtDeviceDiscoverySupport -I../../../../include/QtCore/5.13.0 -I../../../../include/QtCore/5.13.0/QtCore -I../../../../include/QtNetwork -I../../../../include/QtDBus -I../../../../include/QtCore -I.moc -isystem /usr/include/libdrm -I../../../../mkspecs/linux-g++ -o .obj/moc_qvncclient.o .moc/moc_qvncclient.cpp
g++ -c -pipe -O2 -std=c++1y -fvisibility=hidden -fvisibility-inlines-hidden -fno-exceptions -Wall -W -Wvla -Wno-missing-field-initializers -D_REENTRANT -fPIC -DQT_NO_FOREACH -DQT_DEPRECATED_WARNINGS -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT -DQT_NO_EXCEPTIONS -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -DQT_NO_DEBUG -DQT_PLUGIN -DQT_SERVICE_SUPPORT_LIB -DQT_THEME_SUPPORT_LIB -DQT_FB_SUPPORT_LIB -DQT_EVENTDISPATCHER_SUPPORT_LIB -DQT_FONTDATABASE_SUPPORT_LIB -DQT_INPUT_SUPPORT_LIB -DQT_GUI_LIB -DQT_DEVICEDISCOVERY_SUPPORT_LIB -DQT_NETWORK_LIB -DQT_DBUS_LIB -DQT_CORE_LIB -I. -I../../../../include -I../../../../include/QtServiceSupport -I../../../../include/QtServiceSupport/5.13.0 -I../../../../include/QtServiceSupport/5.13.0/QtServiceSupport -I../../../../include/QtThemeSupport -I../../../../include/QtThemeSupport/5.13.0 -I../../../../include/QtThemeSupport/5.13.0/QtThemeSupport -I../../../../include/QtFbSupport -I../../../../include/QtFbSupport/5.13.0 -I../../../../include/QtFbSupport/5.13.0/QtFbSupport -I../../../../include/QtEventDispatcherSupport -I../../../../include/QtEventDispatcherSupport/5.13.0 -I../../../../include/QtEventDispatcherSupport/5.13.0/QtEventDispatcherSupport -I../../../../include/QtFontDatabaseSupport -I../../../../include/QtFontDatabaseSupport/5.13.0 -I../../../../include/QtFontDatabaseSupport/5.13.0/QtFontDatabaseSupport -I../../../../include/QtInputSupport -I../../../../include/QtInputSupport/5.13.0 -I../../../../include/QtInputSupport/5.13.0/QtInputSupport -I../../../../include/QtGui/5.13.0 -I../../../../include/QtGui/5.13.0/QtGui -I../../../../include/QtGui -I../../../../include/QtDeviceDiscoverySupport -I../../../../include/QtDeviceDiscoverySupport/5.13.0 -I../../../../include/QtDeviceDiscoverySupport/5.13.0/QtDeviceDiscoverySupport -I../../../../include/QtCore/5.13.0 -I../../../../include/QtCore/5.13.0/QtCore -I../../../../include/QtNetwork -I../../../../include/QtDBus -I../../../../include/QtCore -I.moc -isystem /usr/include/libdrm -I../../../../mkspecs/linux-g++ -o .obj/main.o main.cpp
rm -f libqvnc.so
g++ -Wl,--no-undefined -Wl,-O1 -Wl,--enable-new-dtags -Wl,-z,origin -Wl,-rpath,\$ORIGIN/../../lib -shared -o libqvnc.so .obj/main.o .obj/qvncintegration.o .obj/qvncscreen.o .obj/qvnc.o .obj/qvncclient.o .obj/moc_qvncscreen.o .obj/moc_qvnc_p.o .obj/moc_qvncclient.o  /home/analog/qt-everywhere-src-5.13.0/qtbase/lib/libQt5ServiceSupport.a /home/analog/qt-everywhere-src-5.13.0/qtbase/lib/libQt5ThemeSupport.a /home/analog/qt-everywhere-src-5.13.0/qtbase/lib/libQt5FbSupport.a /home/analog/qt-everywhere-src-5.13.0/qtbase/lib/libQt5EventDispatcherSupport.a /usr/lib/arm-linux-gnueabihf/libgthread-2.0.so /usr/lib/arm-linux-gnueabihf/libglib-2.0.so /home/analog/qt-everywhere-src-5.13.0/qtbase/lib/libQt5FontDatabaseSupport.a /home/analog/qt-everywhere-src-5.13.0/qtbase/lib/libqtfreetype.a /usr/lib/arm-linux-gnueabihf/libpng12.so /usr/lib/arm-linux-gnueabihf/libz.so /home/analog/qt-everywhere-src-5.13.0/qtbase/lib/libQt5InputSupport.a /home/analog/qt-everywhere-src-5.13.0/qtbase/lib/libQt5Gui.so /home/analog/qt-everywhere-src-5.13.0/qtbase/lib/libQt5DeviceDiscoverySupport.a /home/analog/qt-everywhere-src-5.13.0/qtbase/lib/libQt5Network.so /home/analog/qt-everywhere-src-5.13.0/qtbase/lib/libQt5DBus.so /home/analog/qt-everywhere-src-5.13.0/qtbase/lib/libQt5Core.so /usr/lib/arm-linux-gnueabihf/libGL.so -lpthread
mv -f libqvnc.so ../../../../plugins/platforms/libqvnc.so
make[5]: Leaving directory `/home/analog/qt-everywhere-src-5.13.0/qtbase/src/plugins/platforms/vnc'
make[4]: Leaving directory `/home/analog/qt-everywhere-src-5.13.0/qtbase/src/plugins/platforms'
make[3]: Leaving directory `/home/analog/qt-everywhere-src-5.13.0/qtbase/src/plugins'
make[2]: *** [sub-plugins-make_first] Error 2
make[2]: Leaving directory `/home/analog/qt-everywhere-src-5.13.0/qtbase/src'
make[1]: *** [sub-src-make_first] Error 2
make[1]: Leaving directory `/home/analog/qt-everywhere-src-5.13.0/qtbase'
make: *** [module-qtbase-make_first] Error 2
analog@analog:~/qt-everywhere-src-5.13.0$

SGaist

Hi,

While you don't need a screen to build Qt, you still need the development libraries required for the various features you want to build.

BrMisha

@SGaist This configure options i just copied from somewhere)) I need just features like from qt5-default (this one i can install with apt, but only old version) and networking

SGaist

You need the libxkbcommon development package.

BrMisha

@SGaist But xcb need for windows system. My dev board hasn't windows system))
I need to build only QtCore and QNetwork

BrMisha

https://forum.qt.io/topic/45821/building-minimal-qt5-no-gui-just-qtcore-qtnetwork-oh-and-qtscript-solved/2
This man had like problem. He wrote that built qtbase, bu HOW??? I can't find info about it on network

closx

@BrMisha said in How to build Qt on system without a GUI?:

fatal error: xkbcommon/xkbcommon-compose.h: No such file or directory

Like @SGaist said, you need the libraries anyway. Check Qt5 Dependencies page.
Try this maybe?

sudo apt-get install libx11-xcb-dev libglu1-mesa-dev build-dependencies

If not solves, try this,

sudo apt-get install libxcb1 libxcb-util0 libpam-dev libcairo-dev libxcb-xinerama0 libev-dev libx11-dev libx11-xcb-dev libxkbcommon0 libxkbcommon-x11-dev libxkbcommon-dev libxcb-dpms0-dev libxcb-xinerama0-dev libxkbfile-dev libxcb-util0-dev libxcb-image0-dev

SGaist

@BrMisha said in How to build Qt on system without a GUI?:

https://forum.qt.io/topic/45821/building-minimal-qt5-no-gui-just-qtcore-qtnetwork-oh-and-qtscript-solved/2
This man had like problem. He wrote that built qtbase, bu HOW??? I can't find info about it on network

Run the configure script that is located in qtbase.

As for xkbcommon, you can also disable that feature.

BrMisha

@closx said in How to build Qt on system without a GUI?:

libraries
I installed this libs and started make. Now waiting a few hours ))) (it's quit slow)

BrMisha

@SGaist so, i have done it but got this output:

rm -f libqvnc.so
g++ -Wl,--no-undefined -Wl,-O1 -Wl,--enable-new-dtags -Wl,-z,origin -Wl,-rpath,\$ORIGIN/../../lib -shared -o libqvnc.so .obj/main.o .obj/qvncintegration.o .obj/qvncscreen.o .obj/qvnc.o .obj/qvncclient.o .obj/moc_qvncscreen.o .obj/moc_qvnc_p.o .obj/moc_qvncclient.o  /home/analog/qt-everywhere-src-5.13.0/qtbase/lib/libQt5ServiceSupport.a /home/analog/qt-everywhere-src-5.13.0/qtbase/lib/libQt5ThemeSupport.a /home/analog/qt-everywhere-src-5.13.0/qtbase/lib/libQt5FbSupport.a /home/analog/qt-everywhere-src-5.13.0/qtbase/lib/libQt5EventDispatcherSupport.a /usr/lib/arm-linux-gnueabihf/libgthread-2.0.so /usr/lib/arm-linux-gnueabihf/libglib-2.0.so /home/analog/qt-everywhere-src-5.13.0/qtbase/lib/libQt5FontDatabaseSupport.a /home/analog/qt-everywhere-src-5.13.0/qtbase/lib/libqtfreetype.a /usr/lib/arm-linux-gnueabihf/libpng12.so /usr/lib/arm-linux-gnueabihf/libz.so /home/analog/qt-everywhere-src-5.13.0/qtbase/lib/libQt5InputSupport.a /home/analog/qt-everywhere-src-5.13.0/qtbase/lib/libQt5Gui.so /home/analog/qt-everywhere-src-5.13.0/qtbase/lib/libQt5DeviceDiscoverySupport.a /home/analog/qt-everywhere-src-5.13.0/qtbase/lib/libQt5Network.so /home/analog/qt-everywhere-src-5.13.0/qtbase/lib/libQt5DBus.so /home/analog/qt-everywhere-src-5.13.0/qtbase/lib/libQt5Core.so /usr/lib/arm-linux-gnueabihf/libGL.so -lpthread
mv -f libqvnc.so ../../../../plugins/platforms/libqvnc.so
make[5]: Leaving directory `/home/analog/qt-everywhere-src-5.13.0/qtbase/src/plugins/platforms/vnc'
make[4]: Leaving directory `/home/analog/qt-everywhere-src-5.13.0/qtbase/src/plugins/platforms'
make[3]: Leaving directory `/home/analog/qt-everywhere-src-5.13.0/qtbase/src/plugins'
make[2]: *** [sub-plugins-make_first] Error 2
make[2]: Leaving directory `/home/analog/qt-everywhere-src-5.13.0/qtbase/src'
make[1]: *** [sub-src-make_first] Error 2
make[1]: Leaving directory `/home/analog/qt-everywhere-src-5.13.0/qtbase'
make: *** [module-qtbase-make_first] Error 2

SGaist

This doesn't show where the build failed.

Re-run the build without the -j parameter so you'll see exactly were the error is.

BrMisha

In file included from qcomposeplatforminputcontextmain.cpp:44:0:
qcomposeplatforminputcontext.h:46:41: fatal error: xkbcommon/xkbcommon-compose.h: No such file or directory
 #include <xkbcommon/xkbcommon-compose.h>

jsulm

@BrMisha said in How to build Qt on system without a GUI?:

I installed this libs

dev package also (which contains header files)?

BrMisha

@jsulm yes, libxkbcommon0 libxkbcommon-x11-dev libxkbcommon-dev are installed

SGaist

Did you re-run configure from a clean state ?

BrMisha

@SGaist I did re-unzip sources, then did configure))

SGaist

Can you check the configure log to see if there's anything related to that ?

BrMisha

Log i will saw after do configure?

SGaist

They are generated when configure is run. Look into your build folder.

Pavel_47

Hello,
I've tried all suggestions found on this topic, but build process still fails: cannot find xkbccommon-compose.h file. Just one remark: trying to install additional packages with the command:
sudo apt-get install libxcb1 libxcb-util0 libpam-dev ...
I should remove just libxbc-util0 (all others were kept) because this package wasn't found.
Any ideas ?
Thanks.

SGaist

Hi,

What version of xkbcommon do you have installed ?

Pavel_47

@closx said in How to build Qt on system without a GUI?:
I'm not aware what is actually installed ... I've just executed the following instruction, as was suggested previously in this topic (except libxcb-util0 which wasn't found)

sudo apt-get install libxcb1 libxcb-util0 libpam-dev libcairo-dev libxcb-xinerama0 libev-dev libx11-dev libx11-xcb-dev libxkbcommon0 libxkbcommon-x11-dev libxkbcommon-dev libxcb-dpms0-dev libxcb-xinerama0-dev libxkbfile-dev libxcb-util0-dev libxcb-image0-dev

jsulm

@Pavel_47 Did you install these packages on your target device? Since you're crosscompiling you need them in your sysroot, not on your host machine.

Pavel_47

I've contacted libxkbcommon developers. They suggested me using this command:
sudo apt-get install libxkbcommon-dev libxkbcommon-x11-dev
That is what i did, but system informed me that libxkbcommon-dev and libxkbcommon-x11-dev are already the newest versions (i.e. 0.8.2-1~ubuntu 18.04.1).

Well, I'm trying to rebiuild Qt toolchain once more . Now it's running ...

Pavel_47

Sorry, I've missed your last suggestion - install libxkbcommon on target (i.e RPi3 in my case). But anyway, how build process on the host can be influenced by what is installed (or not) on that target device ?

Pavel_47

The new attempt of Qt building is also failed.
I wonder if anyone has managed to bulid Qt on Ubuntu ?
What should I check ... or install to resolve the problem ?

SGaist

Since you are cross-compiling, you need all dependencies for your target. This is usually done installing the libraries on said target and then sync the content of the file system of the target back to the host so the cross-compiler can use them to do its work.

Pavel_47

I've just checked libxkbcommon-dev and libxkbcommon-x11-dev on RPi. As on Ubuntu they are installed and are newest versions.

SGaist

Did you sync your RPi filesystem back to your host before trying to build Qt ?

Pavel_47

Yes, at very first time I executed these commands (as it's suggested here https://wiki.qt.io/RaspberryPi2EGLFS):
rsync -avz pi@raspberrypi.local:/lib sysroot
rsync -avz pi@raspberrypi.local:/usr/include sysroot/usr
rsync -avz pi@raspberrypi.local:/usr/lib sysroot/usr
rsync -avz pi@raspberrypi.local:/opt/vc sysroot/opt

Then I did 3 or 4 other attempts to build, but at each of these attempts I didn't proceed with resync with RPi.
Anyway one thing escapes me .... should I keep connection with RPi while running toolchain build on host ?

jsulm

@Pavel_47 said in How to build Qt on system without a GUI?:

should I keep connection with RPi while running toolchain build on host ?

No, you just need to sync your sysroot.

Pavel_47

I've checked the location of xkbcommon-compose.h. It's Ok:
alt text
Then I've tried to compile this:

#include <xkbcommon/xkbcommon-compose.h>
int main() {}

It was also Ok

jsulm

@Pavel_47 Is it in your host system or sysroot?

Pavel_47

@jsulm said in How to build Qt on system without a GUI?:

@Pavel_47 Is it in your host system or sysroot?

Sorry, I didn't understand what you mean ...
The location of the screenshot: /usr/include/xkbcommon on my host
The location of .c snippet (where I compiled it): ~/raspi/ on my host

jsulm

@Pavel_47 said in How to build Qt on system without a GUI?:

/usr/include/xkbcommon on my host

That's the point: you need these headers in your sysroot!

Pavel_47

Indeed !
In ~/raspi/sysroot/usr/include/xkbcommon there is one less file comparing to /usr/include/xkbcommon ... and this missed file is precisely xkbcommon-compose.h.

alt text

So, I copy xkbcommon-compose.h from /usr/include/xkbcommon to ~/raspi/sysroot/usr/include/xkbcommon and then build Qt toolchain once more ?

Pavel_47

I copied xkbcommon-compose.h from /usr/include/xkbcommon to ~/raspi/sysroot/usr/include/xkbcommon and then run make once more.
And it failed one more time.
Here is how it finished:
alt text

Any other suggestions ?

Thanks.

SGaist

As we already wrote: you need the library too. And built for your target.

Important: Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

How to build Qt on system without a GUI?