Alpine tmux build

Dockerfile

FROM alpine
RUN apk add --no-cache gcc g++ make automake autoconf pkgconfig git libevent-dev ncurses-dev byacc bsd-compat-headers
RUN \
  git clone https://github.com/tmux/tmux.git && \
  cd tmux && \
  ./autogen.sh && \
  ./configure && \
  make && \
  make install