From d0a008de875c79e572669c1831a981859f8fe8a2 Mon Sep 17 00:00:00 2001
From: Romain Ruetschi <romain@informal.systems>
Date: Thu, 19 Nov 2020 15:02:30 +0100
Subject: [PATCH] light-client: Only require Tokio when `rpc-feature` is
 enabled

---
 light-client/Cargo.toml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/light-client/Cargo.toml b/light-client/Cargo.toml
index cfcf7fa21..0484ba28a 100644
--- a/light-client/Cargo.toml
+++ b/light-client/Cargo.toml
@@ -23,7 +23,7 @@ crate-type = ["cdylib", "rlib"]
 
 [features]
 default = ["rpc-client"]
-rpc-client = ["tendermint-rpc/http-client"]
+rpc-client = ["tokio", "tendermint-rpc/http-client"]
 secp256k1 = ["tendermint/secp256k1", "tendermint-rpc/secp256k1"]
 
 [dependencies]
@@ -41,7 +41,7 @@ serde_derive = "1.0.106"
 sled = "0.34.3"
 static_assertions = "1.1.0"
 thiserror = "1.0.15"
-tokio = "0.2.20"
+tokio = { version = "0.2.20", optional = true }
 
 [dev-dependencies]
 tendermint-testgen = { path = "../testgen"}