From 38551fff2da8cab922672ca7353baa1068dc25d3 Mon Sep 17 00:00:00 2001
From: selsta <selsta@sent.at>
Date: Thu, 24 Jun 2021 17:16:48 +0200
Subject: [PATCH] trezor: add #if for ByteSizeLong

Turns out Ubuntu 18.04 ships with an old protobuf version.
---
 src/device_trezor/trezor/transport.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/device_trezor/trezor/transport.cpp b/src/device_trezor/trezor/transport.cpp
index 7a79d8f95..881848a80 100644
--- a/src/device_trezor/trezor/transport.cpp
+++ b/src/device_trezor/trezor/transport.cpp
@@ -157,7 +157,11 @@ namespace trezor{
 #define PROTO_HEADER_SIZE 6
 
   static size_t message_size(const google::protobuf::Message &req){
+#if GOOGLE_PROTOBUF_VERSION < 3006001
+    return size_t(req.ByteSize());
+#else
     return req.ByteSizeLong();
+#endif
   }
 
   static size_t serialize_message_buffer_size(size_t msg_size) {