Precompiled packages are available from http://www.sisyphusion.tk/ppm/
It might be worth mentioning that those packages are, in fact, built against the latest libssh2 release (version 1.4.2). The full list of available packages can be viewed at http://www.sisyphusion.tk/ppmindex.html.
Cheers, Rob
Comment on Re^4: Net SFTP Foreign backend ssh2 Put not working for large files LIBSSH2_ERROR_SOCKET_NON(-1) transport read