Install tmux 2.2 on CentOS 7.1

install-tmux

# install deps
yum install gcc kernel-devel make ncurses-devel

# DOWNLOAD SOURCES FOR LIBEVENT AND MAKE AND INSTALL
wget https://github.com/downloads/libevent/libevent/libevent-2.0.21-stable.tar.gz
tar -xvzf libevent-2.0.21-stable.tar.gz
cd libevent-2.0.21-stable
./configure --prefix=/usr/local
make
sudo make install

# DOWNLOAD SOURCES FOR TMUX AND MAKE AND INSTALL
wget https://github.com/tmux/tmux/releases/download/2.2/tmux-2.2.tar.gz
tar -xvzf tmux-2.2.tar.gz
cd tmux-2.2
LDFLAGS="-L/usr/local/lib -Wl,-rpath=/usr/local/lib" ./configure --prefix=/usr/local
make
sudo make install

# pkill tmux
# close your terminal window (flushes cached tmux executable)
# open new shell and check tmux version
tmux -V

Thank you so much for this information.

FYI These same steps also work for tmux 2.7

wget https://github.com/tmux/tmux/releases/download/2.7/tmux-2.7.tar.gz

I will second @ghost no need to compile libevent
do

# install deps
yum install gcc kernel-devel make ncurses-devel libevent-devel

also unzip the file to /tmp/ in case sudo make install does not work for certain user permission.