Prerequisities

To build cffi lib for cryptography, it requires libssl_dev.

To build PyNaCl, it requires libsodium_dev.

$ sudo pkgutil -y -i libssl_dev
$ sudo pkgutil -y -i libsodium_dev

build with pip

$ pip install ansible --global-option=build_ext \
--global-option="-I/opt/csw/include" --global-option="-L/opt/csw/lib"