I built from source (option #2). I had to acquire a pcre-devel library, which was done by issuing the following command first: sudo apt-cache search pcre This was located here: https://stackoverflow.com/questions/2263404/what-package-i-should-install-fo r-pcre-devel I found this by googling pcre dev. It told me to grep "dev" (which I did). Afterwards, I was able to issue: sudo apt-get install libpcre2-dev After this command, I was able to issue this one: sudo apt-get install libpcre-dev A new user is looking for a "recipe" of commands to use. It seems a real shame, because the repository is clearly marked and somebody spent some time getting it operational. It just doesn't have the "git clone https://ci1.netdef.org/browse/LIBYANG-YANGRELEASE/latestSuccessful/artifact somename.git <https://ci1.netdef.org/browse/LIBYANG-YANGRELEASE/latestSuccessful/artifact %20somename.git> ". I would have chosen option #1 if it did. Instead, I chose to build libyang from source. Mike Mazarick