add buildout for tmux

component/tmux/buildout.cfg

+[buildout]
+extends =
+  ../libevent/buildout.cfg
+  ../ncurses/buildout.cfg
+
+parts +=
+  tmux
+
+[tmux]
+recipe = slapos.recipe.cmmi
+url = https://github.com/tmux/tmux/releases/download/2.0/tmux-2.0.tar.gz
+md5sum = 9fb6b443392c3978da5d599f1e814eaa
+environment =
+  CFLAGS=-I${ncurses:location}/include -I${libevent:location}/include/
+  LDFLAGS=-L${ncurses:location}/lib/ -L${libevent:location}/lib/ -Wl,-rpath=${ncurses:location}/lib/ -Wl,-rpath=${libevent:location}/lib/
+configure-options =
+  --prefix=${buildout:parts-directory}/${:_buildout_section_name_}