How to configure modules when building Qt from git

[SGaist]

Hi,

Most modules are built by default.

For additional modules, it the same technique as when building a project:

qmake 
make
make install

[Vicky Sharma]

@Aras
Exactly right by default all necessary packages/modules add auto during run './configure'.

If still need to add specific package so you may type like below.
For example If need to add 'webkit' module than may type '../configure -webkit '

[Aras]

@SGaist I am doing an out of source directory build. I have cloned the Qt source into a folder called qt5. Parallel to that folder I have my Qt5.8Nov28Build. I ran ../qt5/configure -developer-build -opensource -nomake examples -nomake tests -debug from inside the build folder. Now there are these folders created:

Qt5.8_build_Nov28$ ls
config.cache  config.status  qtactiveqt       qtcanvas3d      qtdocgallery  qtimageformats  qtmultimedia  qtqa       qtserialbus   qtwayland    qtxmlpatterns
config.log    Makefile       qtandroidextras  qtconnectivity  qtenginio     qtlocation      qtpim         qtscxml    qtserialport  qtwebengine
config.opt    qt3d           qtbase           qtdeclarative   qtgamepad     qtmacextras     qtpurchasing  qtsensors  qtsvg         qtx11extras

Do I need to go into each folder, if I want that module, and run qmake & make. Also do I still need to do make install even if I am doing an out of source build?

@Vicky-Sharma I tried but the -webkit flag is not recognized. I tried many other flags such as -script -scripttools -declarative -declarative-debug and none of those are recognized by the configure script.

I am using 64bit Ubuntu 16.04.

[Aras]

Another update on this. I was able to build Qt from source. In order to build Qt Creator from source, I had to run make -j5 module-qtscript from the qt build directory. After that I was able to configure and build Qt Creator. So now I have Qt Creator version 4.2.82 built from source using qmake version 5.8.0 also built from source.

However, when I try to open my project using the new qt build and the new creator I just build, I get this warning about missing modules in the "General Messages" tab:

Project MESSAGE: Warning: unknown QT: 3dcore
Project MESSAGE: Warning: unknown QT: 3drender
Project MESSAGE: Warning: unknown QT: 3dinput
Project MESSAGE: Warning: unknown QT: 3dlogic
Project MESSAGE: Warning: unknown QT: 3dquick
Project MESSAGE: Warning: unknown QT: 3dextras
Project MESSAGE: Warning: unknown QT: qml
Project MESSAGE: Warning: unknown QT: quick
Project MESSAGE: Warning: unknown QT: 3dquickextras
Project MESSAGE: Warning: unknown QT: positioning
Project MESSAGE: Warning: unknown QT: serialbus
Project MESSAGE: Running CAN pro file
Project MESSAGE: Target path is:  + plugins/can
Project MESSAGE: Warning: unknown QT: qml
Project MESSAGE: Warning: unknown QT: quick
Project MESSAGE: Warning: unknown QT: serialbus
Project MESSAGE: Warning: unknown QT: qml
Project MESSAGE: Warning: unknown QT: quick
Project MESSAGE: Warning: unknown QT: qml
Project MESSAGE: Warning: unknown QT: quick

And if I try to build the project I get lots of errors about functions being private or not getting recognized. I know that the code is correct, because it builds and runs on another machine. So thse errors must be caused by missing modules.

That is exactly what I was worried about. How do I install those missing modules?

[SGaist]

If you configure Qt at the root, it will build all the current modules.

You only have to go "by hand" with qtscript.

QtWebkit it not an option anymore since 5.6

Unless you plan to hack on Qt don't use a developer build.

[Aras]

@SGaist said in How to configure modules when building Qt from git:

configure Qt at the root

can you clarify what you mean by that? Do you mean run configure as root? with sudo?

Thanks for your help so far.

[SGaist]

Sorry, I meant the root directory of the source.

Basically:

mkdir build_Qt5
cd build_Qt5
/path/to/Qt_sources/configure

[Aras]

@SGaist that is exactly what I did: an out of source directory build. I am focused on this error now:

ControlView.qml:2 module "QtQuick.Controls" version 2.0 is not installed

To me that means qtquickcontrols2 did not get installed when I built qt. Is there a way to just build this module and install it?

Sorry, I dont know why I am always having such a hard time with qt modules. It can't be just me, right?

[SGaist]

That should boil down to:

cd build_Qt5
mkdir qtquickcontrols2
../qtbase/bin/qmake /path/to/Qt_sources/qtquickcontrols2
make
make install

[Aras]

@SGaist thank you for that! That took care of the qtquickcontrols2. Now I just have a hand full of other modules I need to build and install, according to these errors:

/Live3DWidget.qml:4 module "QtQuick.Scene3D" is not installed
/Live3DWidget.qml:9 module "Qt3D.Extras" is not installed
/Live3DWidget.qml:7 module "Qt3D.Render" is not installed
/Live3DWidget.qml:6 module "Qt3D.Core" is not installed
/Live3DWidget.qml:8 module "Qt3D.Input" is not installed
/Live3DWidget.qml:4 module "QtQuick.Scene3D" is not installed
/Live3DWidget.qml:9 module "Qt3D.Extras" is not installed
/Live3DWidget.qml:7 module "Qt3D.Render" is not installed
/Live3DWidget.qml:6 module "Qt3D.Core" is not installed
/Live3DWidget.qml:8 module "Qt3D.Input" is not installed
/Live3DWidget.qml:4 module "QtQuick.Scene3D" is not installed
/Live3DWidget.qml:9 module "Qt3D.Extras" is not installed
/Live3DWidget.qml:7 module "Qt3D.Render" is not installed
/Live3DWidget.qml:6 module "Qt3D.Core" is not installed
/Live3DWidget.qml:8 module "Qt3D.Input" is not installed
/Live3DWidget.qml:4 module "QtQuick.Scene3D" is not installed
/Live3DWidget.qml:9 module "Qt3D.Extras" is not installed
/Live3DWidget.qml:7 module "Qt3D.Render" is not installed
/Live3DWidget.qml:6 module "Qt3D.Core" is not installed
/Live3DWidget.qml:8 module "Qt3D.Input" is not installed
/Live3DWidget.qml:4 module "QtQuick.Scene3D" is not installed
/Live3DWidget.qml:9 module "Qt3D.Extras" is not installed
/Live3DWidget.qml:7 module "Qt3D.Render" is not installed
/Live3DWidget.qml:6 module "Qt3D.Core" is not installed
/Live3DWidget.qml:8 module "Qt3D.Input" is not installed

I will try to install relevant modules and try again. Will report back.