int qcrypto_pbkdf2(QCryptoHashAlgorithm hash G_GNUC_UNUSED, const uint8_t *key G_GNUC_UNUSED, size_t nkey G_GNUC_UNUSED, const uint8_t *salt G_GNUC_UNUSED, size_t nsalt G_GNUC_UNUSED, unsigned int iterations G_GNUC_UNUSED, uint8_t *out G_GNUC_UNUSED, size_t nout G_GNUC_UNUSED, Error **errp) { error_setg_errno(errp, ENOSYS, "No crypto library supporting PBKDF in this build"); return -1; }