Help with installing zbar

Question

I was hoping someone on here who's familiar with zbar could help me install it properly? Here's what happened: (I'm running Stretch on the Raspberry Pi 3 Model B).

I download the file from here: ZBar bar code reader

The downloaded file has a tar.bz2 extension so I use:

$ tar xvjf zbar-0.10.tar.bz2

to extract it to my desktop.

Then I navigate inside the extracted folder using

$ cd zbar-0.10/

and then I type:

$ ./configure

That seems to run with errors exactly like in this post:

Installation of Zbar failed

After following the above post I use:

sudo apt-get install python-qrtools
sudo apt-get install libzbar-dev
sudo pip install zbar

However there's a segmentation fault when I try and import zbar the same to what is found here:

Zbar Installation

after reading that I saw:

'We believe that the bug you reported is fixed in the latest version of zbar, which is due to be installed in the Debian FTP archive'

Surely this would also apply to Raspbian Stretch?

The whole point of this is to somehow get the zbarcam program/code integrated with my script.

If anyone has any experience with this problem or can help I'd love to hear from you.

Answer 1

Please revert all what you have done. There is to much mixed up. The best is you start from scratch with a new flashed image. zbar has wide support from the repository. With apt list *zbar* you will find the zbar packages and with:

rpi ~$ apt show libbarcode-zbar-perl libzbar0 libzbargtk0 libzbarqt0 python-zbar python-zbarpygtk zbar-tools

you will find in detail what is supported. I guess you want the python bindings. Then execute:

rpi ~$ sudo apt install python-zbar

That will install it with all necessary dependent packages. It may also help to install

rpi ~$ sudo apt install zbar-tools

This package contains basic applications for decoding captured bar code images and using a video4linux device (e.g. webcam) as a bar code scanner. But I don't know if you really need this. If not then don't install it.