I am using Ubuntu 12.10 and going to write Prolog program with clpqr. I write this in first line:
:- use_module(library(clpr)).
I got this message:
source_sink `library(clpr)' does not exist
So, how to install that library? I've found some bug report about this, but maybe there's another way to install it...
Finally I find the answer.
Download one from http://www.swi-prolog.org/download/stable/src/
Install the dependencies listed in http://www.swi-prolog.org/build/Debian.html
Finish by reading the instruction in README.linux