This is a package you must install in order to be able to install Campsite. In Ubuntu the package name is libidn11-dev. If you have a rpm based distribution check this site: http://www.rpmseek.com/index.html
I posted a few days ago with a host related question. I decided it was easier for me to setup with a new host so I did so. This host brought with it some issues I am moving through and was hoping I might be able to get steered in the right direction. I already installed ImageMagick since it wasn't installed. Upon reexectuing ./install.sh I was given the following error:
Checking ADMIN_INTERFACE module dependencies...file libidn.so not found in /usr/lib:/usr/local/lib:/opt/lib:/usr/lib64
Could not find IDN library. Please install libidn-dev package.
Could not find IDN library. Please install libidn-dev package.
There is a dependecy problem. Please read the previous message and
install the required program/package.
Is this a seperate package or part of something else? I can't seem to locate a .tar for it. Any help would be appreciated.