If you try a build openntpd on a system without openssl (USE=-ssl) you get the following configure error : "Can't find recent OpenSSL libcrypto (see config.log for details)" In fact openntpd can be built with or without openssl support. In the first case you need to specify the "--with-builtin-arc4random" configure option. In the other case you need to pull openssl in [R]DEPEND to ensure a proper build. Since I intend on dropping openssl on GNAP I would prefer openntpd to support both options, through the use of the "ssl" USE flag.
fixed in 3.6 and 3.6.1