Install tmux locally without root access

tmux_local_install.sh

#!/bin/bash

# Script for installing tmux on systems where you don't have root access.
# tmux will be installed in $INSTALL_DIR/local/bin.
# It's assumed that wget and a C/C++ compiler are installed.

# exit on error
set -e

TMUX_VERSION=2.3
INSTALL_DIR=/group/hepheno/smsharma

# create our directories
mkdir -p $INSTALL_DIR/local $INSTALL_DIR/tmux_tmp
cd $INSTALL_DIR/tmux_tmp

# download source files for tmux, libevent, and ncurses
wget -O tmux-${TMUX_VERSION}.tar.gz https://github.com/tmux/tmux/releases/download/${TMUX_VERSION}/tmux-${TMUX_VERSION}.tar.gz
wget https://github.com/downloads/libevent/libevent/libevent-2.0.19-stable.tar.gz
wget ftp://ftp.gnu.org/gnu/ncurses/ncurses-5.9.tar.gz

# extract files, configure, and compile

############
# libevent #
############
tar xvzf libevent-2.0.19-stable.tar.gz
cd libevent-2.0.19-stable
./configure --prefix=$INSTALL_DIR/local --disable-shared
make
make install
cd ..

############
# ncurses  #
############
if [[ $(fs --version) =~ "afs" ]] && fs whereis "$HOME/local" ; then
    NCURSES_OPTION=" --enable-symlinks"
else
    NCURSES_OPTION=""
fi

tar xvzf ncurses-5.9.tar.gz
cd ncurses-5.9
./configure --prefix=$INSTALL_DIR/local $NCURSES_OPTION
make
make install
cd ..

############
# tmux     #
############
tar xvzf tmux-${TMUX_VERSION}.tar.gz
cd tmux-${TMUX_VERSION}
./configure CFLAGS="-I$INSTALL_DIR/local/include -I$INSTALL_DIR/local/include/ncurses" LDFLAGS="-L$INSTALL_DIR/local/lib -L$INSTALL_DIR/local/include/ncurses -L$INSTALL_DIR/local/include"
CPPFLAGS="-I$INSTALL_DIR/local/include -I$INSTALL_DIR/local/include/ncurses" LDFLAGS="-static -L$INSTALL_DIR/local/include -L$INSTALL_DIR/local/include/ncurses -L$INSTALL_DIR/local/lib" make
cp tmux $INSTALL_DIR/local/bin
cd ..

# cleanup
rm -rf $INSTALL_DIR/tmux_tmp

echo "$INSTALL_DIR/local/bin/tmux is now available. You can optionally add $HOME/local/bin to your PATH."

The script is updated and now downloads tmux from GitHub.
Also added AFS support so if you happened to use Notre Dame's CRC server, then this could give you tmux without root access.

For people who are using this under AFS, if you detach tmux and then login again, you may have permission denied at your home directory. To solve this problem, you need to run kinit&aklog to refresh the AFS ticket.

Reference: http://stackoverflow.com/questions/23571012/how-to-provide-an-already-running-process-with-kerberos-and-afs-ticket