From 1cd9f7a6e32ad8d68602db8d709a188713895034 Mon Sep 17 00:00:00 2001
From: Lucas <lucas.tnagel@gmail.com>
Date: Wed, 19 Jun 2024 15:11:30 -0300
Subject: [PATCH] Make futures crate optional

---
 svm/src/transaction_processor.rs | 3 +--
 type-overrides/Cargo.toml        | 3 ++-
 type-overrides/src/lib.rs        | 2 ++
 3 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/svm/src/transaction_processor.rs b/svm/src/transaction_processor.rs
index 10fe96632dafd3..1122a7d022acfe 100644
--- a/svm/src/transaction_processor.rs
+++ b/svm/src/transaction_processor.rs
@@ -53,14 +53,13 @@ use {
         transaction::{self, SanitizedTransaction, TransactionError},
         transaction_context::{ExecutionRecord, TransactionContext},
     },
-    solana_type_overrides::sync::{atomic::Ordering, Arc, RwLock},
+    solana_type_overrides::sync::{atomic::Ordering, Arc, RwLock, RwLockReadGuard},
     solana_vote::vote_account::VoteAccountsHashMap,
     std::{
         cell::RefCell,
         collections::{hash_map::Entry, HashMap, HashSet},
         fmt::{Debug, Formatter},
         rc::Rc,
-        sync::RwLockReadGuard,
     },
 };
 
diff --git a/type-overrides/Cargo.toml b/type-overrides/Cargo.toml
index 28c49f198e73e0..07b69542e53e6f 100644
--- a/type-overrides/Cargo.toml
+++ b/type-overrides/Cargo.toml
@@ -9,10 +9,11 @@ license = { workspace = true }
 edition = { workspace = true }
 
 [dependencies]
-futures = { workspace = true }
+futures = { workspace = true, optional = true }
 lazy_static = { workspace = true }
 rand = { workspace = true }
 shuttle = { workspace = true, optional = true }
 
 [features]
 shuttle-test = ["dep:shuttle"]
+executor = ["dep:futures"]
diff --git a/type-overrides/src/lib.rs b/type-overrides/src/lib.rs
index d48cfadffa1eec..4d9a2ac1a63922 100644
--- a/type-overrides/src/lib.rs
+++ b/type-overrides/src/lib.rs
@@ -6,6 +6,8 @@
 ///
 /// Instead of importing from std, rand, and so on, import the following from solana-type-override,
 /// and include the 'shuttle-test' feature in your crate to use shuttle.
+
+#[cfg(feature = "executor")]
 pub mod executor {
     #[cfg(not(feature = "shuttle-test"))]
     pub use futures::executor::*;