Does anyone know of a C/C++ Unix QR-Code library? [closed]

Answer 1

The zxing library is primarily Java, but, includes a port of the QR Code detector and decoder to C++.

Answer 2

check out my widely cross platform C port of Psytec QR Image generator https://github.com/swex/QR-Image-embedded

Answer 3

How is this one?

http://megaui.net/fukuchi/works/qrencode/index.en.html