Constant openssl_sys::CMS_NO_SIGNER_CERT_VERIFY
pub const CMS_NO_SIGNER_CERT_VERIFY: c_uint = 0x20;
The portability is definied by:
#[cfg(ossl101)]
pub const CMS_NO_SIGNER_CERT_VERIFY: c_uint = 0x20;
#[cfg(ossl101)]