node->decrypt_attempted = true;
node->decrypted_child = g_mime_multipart_encrypted_decrypt
+#if (GMIME_MAJOR_VERSION < 3)
(encrypteddata, cryptoctx, &decrypt_result, &err);
+#else
+ (encrypteddata, GMIME_DECRYPT_NONE, NULL, &decrypt_result, &err);
+#endif
if (! node->decrypted_child) {
fprintf (stderr, "Failed to decrypt part: %s\n",
err ? err->message : "no error explanation given");