install_tmux.sh

#!/usr/bin/env zsh

PREFIX=/usr/local

set -vxe

# Script for installing tmux and dependencies.
# tmux will be installed in /usr/local/lib by default.

# Prerequisites: - gcc
#                - wget

# define versions

tmux_version="1.9"
tmux_patch_version="a" # leave empty for stable releases

libevent_version="2.0.21"
ncurses_version="5.9"

tmux_name="tmux-$tmux_version"
tmux_relative_url="$tmux_name/$tmux_name$tmux_patch_version"
libevent_name="libevent-$libevent_version-stable"
ncurses_name="ncurses-$ncurses_version"

# set the installation directory

build_dir="/home/ckadmin/tmp/build-tmux-$tmux_version$tmux_patch_version"
encap_dir="/home/ckadmin/tmp/build-tmux-$tmux_version$tmux_patch_version/encap"

mkdir -p $encap_dir
mkdir -p $build_dir

: 1>$build_dir/build.log 2>&1


# download source files for tmux, libevent, and ncurses
cd $build_dir

curl -L -o $tmux_name.tar.gz http://sourceforge.net/projects/tmux/files/tmux/$tmux_relative_url.tar.gz/download
curl -L -o $libevent_name.tar.gz https://github.com/downloads/libevent/libevent/$libevent_name.tar.gz
curl -L -o $ncurses_name.tar.gz ftp://ftp.gnu.org/gnu/ncurses/$ncurses_name.tar.gz

# extract files, configure, and compile

# libevent installation
tar xvzf $libevent_name.tar.gz
cd $libevent_name
./configure --prefix=$encap_dir --disable-shared
make
make install
cd -

# ncurses installation
tar xvzf $ncurses_name.tar.gz
cd $ncurses_name
./configure --prefix=$encap_dir
make
make install
cd -

# tmux installation
tar xvzf ${tmux_name}*.tar.gz
cd ${tmux_name}*/
./configure CFLAGS="-I$encap_dir/include -I$encap_dir/include/ncurses" LDFLAGS="-L$encap_dir/lib -L$encap_dir/include/ncurses -L$encap_dir/include"
CPPFLAGS="-I$encap_dir/include -I$encap_dir/include/ncurses" LDFLAGS="-static -L$encap_dir/include -L$encap_dir/include/ncurses -L$encap_dir/lib" make

# assert that there are no shared lib references to our temp encap directory.
if ldd ./tmux | grep encap ; then
  echo 
  echo "[error] build failed. the final tmux binary isn't statically linked to libevent and ncurses."
  exit 1
fi

sudo cp ./tmux $PREFIX/bin

version=$(./tmux -V | cut -d ' ' -f 2)
if [[ -z "$version" ]]; then
  echo 
  echo "[error] failed to install tmux - check for errors in the above output"
  exit 1
fi