/* Forward compatibility functions if libssl < 1.1.0. */
#if OPENSSL_VERSION_NUMBER < 0x10100000L
#if OPENSSL_VERSION_NUMBER < 0x10100000L && !defined(LIBRESSL_VERSION_NUMBER)
int RSA_set0_key(RSA *r, BIGNUM *n, BIGNUM *e, BIGNUM *d)
{