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Building Qt 5.12 LTS for
Raspberry Pi Zero on Debian
Stretch
spring 2019

SD card formating and flashing

Preparing SD with Etcher
sudo apt-get update --fix-
missing

https://www.tal.org/tutorials/building-qt-512-raspberry-
pi

First Steps
Cd
Cd Desktop
#Download the Qt 5.12.3 source archive
wget http://download.qt.io/official_releases/qt/5.12/5.12.3/single/qt-everywhere-src-5.12.3.tar.xz
#Check archive MD5 hash
md5sum qt-everywhere-src-5.12.3.tar.xz
#It should be:
#38017e0ed88b9baba063bd723d9ca8b2 qt-everywhere-src-5.12.3.tar.xz
Un-tar the source archive
Un-tar the source archive in a suitable location, with enough free space (~2.8GB). This will take
around 7-13 minutes on a Raspberry Pi 3+, depending on SD card speed, and even more on an older
model, so go grab of coffe again. You can of course start installation of the build dependecies
while you wait.
tar xf qt-everywhere-src-5.12.3.tar.xz

Setup Qt mkspecs configurati
Qt build is configured trough the configure script, but platform and device specifc settings are set in mkspecs configuration files. Qt includes mkspecs for the Raspberry Pi but they are unfortunately setup for c
compilation environments and can not be used for native building without editing or the need for faking a cross compilation environment. Suitable mkspecs files for the various Pi revisions are available in our g
next step is to clone the repository and install the mkspecs files into the Qt source tree.
Clone the configuration repository:
git clone https://github.com/oniongarlic/qt-raspberrypi-configuration.git
cd into the clone repository and run (adjust DESTDIR in case your Qt sources are extracted somewhere else):
cd qt-raspberrypi-configuration && make install DESTDIR=../qt-everywhere-src-5.12.3
PKG_CONFIG_LIBDIR=/usr/lib/arm-linux-gnueabihf/pkgconfig:/usr/share/pkgconfig
../qt-everywhere-src-5.12.3/configure -platform linux-rpi-g++
-v
-opengl es2 -eglfs
-no-gtk
-opensource -confirm-license -release
-reduce-exports
-force-pkg-config
-nomake examples -no-compile-examples
-skip qtwayland
-skip qtwebengine
-no-feature-geoservices_mapboxgl
-qt-pcre
-no-pch
-ssl
-evdev
-system-freetype

Install required build depend
You will need to install plenty of packages to be able to build Qt. Some of the Qt features are optional, for example support for various databases and if you don't need a specific feature you can skip building the
Or the other way around, if you need a specific feature you might need to install more packages. See the table below for a list of some optional features and the required development packages you need to inst
first, start by updating your package cache so everything is fresh:
apt-get update
Then continue with package installation.
Install required development packages
apt-get install build-essential libfontconfig1-dev libdbus-1-dev libfreetype6-dev libicu-dev libinput-dev libxkbcommon-dev libsqlite3-dev libssl-dev libp
libjpeg-dev libglib2.0-dev libraspberrypi-dev
#acording my searching needs to install llvm-dev
Sudo apt-get install llvm-dev

Install optional development packages
sudo apt-get install libx11-dev libxcb1-dev libxkbcommon-x11-dev libx11-xcb-dev libxext-dev -y

cd ~
sudo cat << EOF> qt_installation.sh
cd /home/pi/Desktop/qt-raspberrypi-configuration
nohup sh -c " sudo make -j2 && sudo make install "> /home/pi/Desktop/qt_inst.log
/dev/null 2>&1 &
#tail -f /home/pi/Desktop/qt_inst.log
#sudo make -j2
#sudo make install
EOF
Sudo chmod 755 qt_installation.sh
sudo nano .bashrc
#insert ./qt_installation.sh at the end of file

ource accepted.
config.qtmultimedia_multimedia.libraries.pulseaudio succeeded
cking for libresourceqt5...
g source 0 (type pkgConfig) of library libresourceqt5 ...
r/bin/pkg-config --exists --silence-errors libresourceqt5
config did not find package.
ource produced no result.
config.qtmultimedia_multimedia.libraries.libresourceqt5 FAILED
cking for libclang...
config.qttools_qdoc.tests.libclang FAILED
e running configuration tests.
igure summary:
type: linux-rpi-g++ (arm, CPU features: <none>)
piler: gcc 6.3.0
iguration: use_gold_linker enable_new_dtags largefile shared rpath

Install pacman for erro of qt.qpa.plugin:
Could not find the Qt platform plugin
"xcb" in ""
http://www.libarchive.org/downloads/libarchive-3.3.3.tar.gz
Tar xzf libarchive-3.3.3.tar.gz
Cd libarchive-3.3.3
./configure
Make
Make install
#https://www.archlinux.org/pacman/
Wget https://sources.archlinux.org/other/pacman/pacman-5.1.3.tar.gz
Tar xfz pacman-5.1.3.tar.gz
Cd pacman-5.1.3
./configure
Make

Install pacman for erro of qt.qpa.plugin:
Could not find the Qt platform plugin
"xcb" in ""
#https://forum.qt.io/topic/93247/qt-qpa-plugin-could-not-load-the-qt-platform-
plugin-xcb-in-even-though-it-was-found/8

Error: g++: internal compiler error: Killed
(program cc1plus)
https://wpitchoune.net/tricks/raspberry_pi3_increase_swap_size.htm
l
You could be running out of memory.

Setting up WiFi using an RTL8188eu
dongle on Raspberry Pi Zero
sudo nano /etc/wpa_supplicant/wpa_supplicant.conf
#into wpa_… file inser this:
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
country=US
network={
ssid="Haper"
psk="hellohello"
key_mgmt=WPA-PSK
}
https://zsiti.eu/wifi-rtl8188eu-raspberry-pi-
zero/

Installing wifi usb dongle for raspberry
sudo apt-get install git build-essential
git clone https://github.com/lwfinger/rtlwifi_new.git
cd rtlwifi_new
make
sudo make install
https://askubuntu.com/questions/523197/rtl8188cus-unable-to-install-14-
04

Error:make[1]: ***
/lib/modules/4.14.98+/build: No such file
or directory. Stop.
sudo apt-get install git raspberrypi-kernel-headers build-essential dkms

Make error: invalid conversion from
‘xcb_window_t {aka unsigned int}’
saying that 'sudo rpi-update' would do the trick
https://forum.qt.io/topic/103934/failure-to-build-qt5-5-12-3-on-raspberry-pi-
zero/10

sudo apt-get install qt5-default qt5-qmake
qtbase5-dev-tools qtcreator
https://www.raspberrypi.org/forums/viewtopic.php?f=33&t=122267
sudo apt-get update
sudo apt-get install qt5-default qt5-qmake qtbase5-dev-tools qtcreator

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