# unison version compat:
# deb/ubuntu, it depends what version they have.
# arch and fedora have unison240 and unison-240-compat respectively,
# but that failed to sync with an ubuntu 12.04 which had unson 2.40,
# so I installed latest stable manualy

# wget http://caml.inria.fr/pub/distrib/ocaml-4.02/ocaml-4.02.3.tar.gz
# ./configure
# make world opt
# s make install

# wget http://www.seas.upenn.edu/~bcpierce/unison//download/releases/stable/unison-2.48.3.tar.gz
# make
# s cp unison /usr/local/bin
PACKAGES install
unison