How to set up CrystalSpace environment on Linux
-----------------------------------------------

Binary packages were built on Debian 7.

Download CS:
wget https://www.skyscrapersim.net/downloads/dev/other_apps/cs/crystalspace-1.4-linux-x64.tar.bz2

extract:
tar xfvj crystalspace-1.4-linux-x64.tar.bz2

move to /usr/local:
sudo mv CS* /usr/local/

add CS environment variable by editing the .profile file:
nano .profile

add the line:
export CRYSTAL=/usr/local/CS

log out and back in again for the variable to take effect.

create a new file for the linker to find the CS library:
sudo nano /etc/ld.so.conf.d/crystal.conf

in that file, add the line:
/usr/local/CS/lib

run ldconfig to update linker:
ldconfig

now you can download the Skyscraper binary for Linux, and it'll run:
wget https://www.skyscrapersim.net/downloads/dev/skyscraper-cs-linux-x64.tar.bz2
tar xfvj skyscraper-cs-linux-x64.tar.bz2
cd skyscraper
./skyscraper