android - Android 6 での Qt 5.6 QSsqlSocket の問題

Question

Android 6 のアプリで QSslSocket クラスに問題があります。Qt 5.6 で開発し、Android 6 以下のバージョンではアプリが正常に動作します。

問題は次のとおりです。

qt.network.ssl: QSslSocket: cannot resolve CRYPTO_free   
qt.network.ssl: QSslSocket: cannot resolve EVP_CipherFinal   
qt.network.ssl: QSslSocket: cannot resolve EVP_rc2_cbc  
qt.network.ssl: QSslSocket: cannot resolve SSLv2_client_method  
qt.network.ssl: QSslSocket: cannot resolve SSLv2_server_method  
qt.network.ssl: QSslSocket: cannot resolve OPENSSL_add_all_algorithms_noconf  
qt.network.ssl: QSslSocket: cannot resolve OPENSSL_add_all_algorithms_conf  
qt.network.ssl: QSslSocket: cannot resolve EC_get_builtin_curves   
qt.network.ssl: QSslSocket: cannot call unresolved function OPENSSL_add_all_algorithms_conf     
qt.network.ssl: QSslSocket: cannot call unresolved function EC_get_builtin_curves   
qt.network.ssl: QSslSocket: cannot call unresolved function EC_get_builtin_curves

この問題を解決する方法はありますか?