From 96c0d42d74c693f01c87f036834468455dcb3f01 Mon Sep 17 00:00:00 2001
From: Marek <mail@marek.onl>
Date: Mon, 19 Feb 2024 14:09:52 +0100
Subject: [PATCH] Add the `experimental_allow_proto3_optional` flag (#8282)

---
 zebra-grpc/build.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/zebra-grpc/build.rs b/zebra-grpc/build.rs
index 61423f87b..fe5143212 100644
--- a/zebra-grpc/build.rs
+++ b/zebra-grpc/build.rs
@@ -3,6 +3,7 @@
 fn main() -> Result<(), Box<dyn std::error::Error>> {
     tonic_build::configure()
         .btree_map(["."])
+        .protoc_arg("--experimental_allow_proto3_optional")
         .type_attribute(".", "#[derive(serde::Deserialize, serde::Serialize)]")
         .compile(&["proto/scanner.proto"], &[""])?;
     Ok(())