I followed the instructions at build unity from source
on Ubuntu desktop 15.04 but it didn't work when I do
make install it exits with error cannot create /pam.d it requires a privileged user.
If I do
sudo make install it works fine but after that I cannot login to my Ubuntu desktop anymore with the same user and to fix this I have to delete ~./compiz-1 to be able to login again.
Please could somebody provide me with the instructions to build and install unity 7 from source and how can I test it after I install it?