$ brew install openssl libssh
$ export LIBRARY_PATH=/usr/local/lib OPENSSL_LIB_DIR=/usr/local/opt/openssl/lib OPENSSL_INCLUDE_DIR=/usr/local/opt/openssl/include DEP_OPENSSL_INCLUDE=/usr/local/opt/openssl/include
$ cargo install pijul
$ darcs clone https://pijul.org
$ darcs clone http://pijul.org/sanakirja
$ ln -s $(pwd)/sanakirja pijul.org/libpijul/src/sanakirja
$ cd pijul.org
$ ln -s $(pwd)/libpijul pijul/src/libpijul
$ cargo install