Beyond Linux® From Scratch (System V Edition) - Version r12.0-1685

Chapter 25. Graphical Environment Libraries

qt-components-5.15.12

Introduction to qt5 components

These instructions show how to build additional Qt5 components beyond qt-alternate-5.15.12. They are not applicable if the full Qt-5.15.12 package has been built.

This package is known to build and work properly using an LFS 12.1 platform.

Package Information

Additional Downloads

qt5 components Dependencies

Required

qt-alternate-5.15.12

Recommended dependencies for qtimageformats

JasPer-4.2.0, libmng-2.0.3, libtiff-4.6.0, and libwebp-1.3.2

Recommended dependencies for qtmultimedia

gst-plugins-good-1.22.10, gst-plugins-bad-1.22.10, and gst-plugins-ugly-1.22.10

Installation of qt5 components

There are a few extra components needed for different packages in BLFS. These are qtimageformats, qtlocation, qtwebchannel, qtdoc, and qtmultimedia. Only those components specified for a specific package are needed. You only need to build the relevant component(s).

First, apply a patch to pull in the fixes curated by KDE for some of the modules listed above: 

patch -Np1 -i ../qt-everywhere-opensource-src-5.15.12-kf5-1.patch

Next, if you are installing qtlocation, fix the build with GCC-13: 

sed -e "/pragma once/a#include <cstdint>"                                      \
    -i qtlocation/src/3rdparty/mapbox-gl-native/include/mbgl/util/geometry.hpp \
       qtlocation/src/3rdparty/mapbox-gl-native/include/mbgl/util/string.hpp   \
       qtlocation/src/3rdparty/mapbox-gl-native/src/mbgl/gl/stencil_mode.hpp

Install each desired component by running the following commands: 

cd <component>
qmake <component>.pro
make

As the root user: 

make install

Remove references to the build directory from installed library dependency (prl) files by running the following command as the root user: 

find $QT5DIR/ -name \*.prl \
   -exec sed -i -e '/^QMAKE_PRL_BUILD_DIR/d' {} \;

Contents

Installed Programs: None
Installed Libraries: libQt5<component>.so
Installed Directories: $QT5DIR/qml/<component>, $QT5DIR/lib/cmake/<component>, and $QT5DIR/include/<component>