From 795fcf0484c47d3dc04cbe8d48293c8bc0c63d7e Mon Sep 17 00:00:00 2001
From: Koute <koute@users.noreply.github.com>
Date: Mon, 3 Apr 2023 21:00:31 +0900
Subject: [PATCH] Disable `sign-ext` WASM feature when building runtimes
 (#13804)

Co-authored-by: parity-processbot <>
---
 substrate/utils/wasm-builder/src/wasm_project.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/substrate/utils/wasm-builder/src/wasm_project.rs b/substrate/utils/wasm-builder/src/wasm_project.rs
index d25fb4acd2..c45a40a6b9 100644
--- a/substrate/utils/wasm-builder/src/wasm_project.rs
+++ b/substrate/utils/wasm-builder/src/wasm_project.rs
@@ -632,7 +632,7 @@ fn build_project(
 	let mut build_cmd = cargo_cmd.command();
 
 	let rustflags = format!(
-		"-C target-cpu=mvp -C link-arg=--export-table {} {}",
+		"-C target-cpu=mvp -C target-feature=-sign-ext -C link-arg=--export-table {} {}",
 		default_rustflags,
 		env::var(crate::WASM_BUILD_RUSTFLAGS_ENV).unwrap_or_default(),
 	);