Download#

Download from http://tmux.sourceforge.net.

Install libevent-dev#

$ cd /data/usr/ports/devel/libevent
$ sudo make install clean

Patch Tmux#

If you attempt to compile tmux as is, you may get an error

cmd-pipe-pane.o(.text+0x342): In function `cmd_pipe_pane_exec':
: undefined reference to `closefrom'
job.o(.text+0x8ff): In function `job_run':
: undefined reference to `closefrom'
tmux.o(.text+0x10f): In function `shell_exec':
: undefined reference to `closefrom'
window.o(.text+0x16ac): In function `window_pane_spawn':
: undefined reference to `closefrom'
*** Error code 1

If so, apply the following patch

diff -r d997d9105b9e configure
--- a/configure Mon Mar 28 14:26:12 2011 -0700
+++ b/configure Mon Mar 28 14:28:22 2011 -0700
@@ -224,7 +224,6 @@
 #define HAVE_ASPRINTF
 #define HAVE_BROKEN_KQUEUE
 #define HAVE_BZERO
-#define HAVE_CLOSEFROM
 #define HAVE_DAEMON
 #define HAVE_FGETLN
 #define HAVE_FORKPTY
@@ -245,6 +244,7 @@
        cat <<EOF >>$CONFIG_MK
 LIBS+= -lcurses -lutil -levent
 SRCS+= osdep-freebsd.c \
+        compat/closefrom.c \
        compat/vis.c \
        compat/unvis.c \
        compat/imsg-buffer.c \
~

Build/Install Tmux#

$ ./configure
$ make
$ sudo make install