Constant openssl_sys::SSL_OP_NO_SSL_MASK
pub const SSL_OP_NO_SSL_MASK: c_ulong = _;
The portability is definied by:
#[cfg(all(ossl111, not(any())))]
pub const SSL_OP_NO_SSL_MASK: c_ulong = _;
#[cfg(all(ossl111, not(any())))]