Yocto with Qt5¶

This page demonstrates how to build Qt5.7 using Yocto Krogoth(2.1).

The following layers will be needed:

	repo	branch
poky	git://git.yoctoproject.org/poky	krogoth
openembedded	git://git.openembedded.org/meta-openembedded	krogoth
openembedded-core	git://git.openembedded.org/openembedded-core	krogoth
qt5	git://code.qt.io/yocto/meta-qt5.git	5.7
criticallink	git://support.criticallink.com/home/git/meta-mitysom-5csx.git	krogoth
ti	git://git.yoctoproject.org/meta-ti	krogoth

Guide¶

1. First start by checking out the needed layers
   

   [users@machine:~] git clone -b krogoth git://git.yoctoproject.org/poky
   [users@machine:~] cd poky
   [users@machine:~/poky] git clone -b krogoth git://support.criticallink.com/home/git/meta-mitysom-5csx.git
   [users@machine:~/poky] git clone -b krogoth git://git.openembedded.org/meta-openembedded
   [users@machine:~/poky] git clone -b 5.7 git://code.qt.io/yocto/meta-qt5.git
   [users@machine:~/poky] git clone -b krogoth https://github.com/openembedded/openembedded-core.git
   [users@machine:~/poky] git clone -b krogoth git://git.yoctoproject.org/meta-ti 
   

2. Next source the environment setup script
   

   [users@machine:~/poky] . ./oe-init-build-env
   

3. Add the needed layers to your conf/bblayers.conf: (*Note: edit the absolute paths to match your system)
   bblayers.conf:
   

   # POKY_BBLAYERS_CONF_VERSION is increased each time build/conf/bblayers.conf
   # changes incompatibly
   POKY_BBLAYERS_CONF_VERSION = "2" 
   
   BBPATH = "${TOPDIR}" 
   BBFILES ?= "" 
   
   BBLAYERS ?= " \
     /space/dvincelette/poky/meta \
     /space/dvincelette/poky/meta-poky \
     /space/dvincelette/poky/meta-yocto-bsp \
     /space/dvincelette/poky/openembedded-core/meta \
     /space/dvincelette/poky/meta-openembedded/meta-oe \
     /space/dvincelette/poky/meta-qt5 \
     /space/dvincelette/poky/meta-ti \
     /space/dvincelette/poky/meta-mitysom-5csx \
     " 
   

4. Build the mitysom-image-x11qt5 image
   

   bitbake mitysom-image-x11qt5
   

Misc¶

menuconfig fails for poky toolchain¶

Eror:

> make menuconfig                                                                                                                           
 *** Unable to find the ncurses libraries or the
 *** required header files.
 *** 'make menuconfig' requires the ncurses libraries.
 *** 
 *** Install ncurses (ncurses-devel) and try again.
 *** 
make[1]: *** [scripts/kconfig/dochecklxdialog] Error 1
make: *** [menuconfig] Error 2

In case menuconfig fails with a warning about needing nurses try to install the following:

sudo apt-get install lib32ncurses5-dev
sudo apt-get install lib32ncursesw5-dev