From 84fdc7df69cd66f74f9621bb81917e7f622e5926 Mon Sep 17 00:00:00 2001
From: Avimitin <avimitin@gmail.com>
Date: Tue, 14 Dec 2021 20:30:28 +0800
Subject: [PATCH] Enable atomic64 on riscv64 arch

Signed-off-by: Avimitin <avimitin@gmail.com>
---
 serde/build.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/serde/build.rs b/serde/build.rs
index 52834bfbe..35a74a5cf 100644
--- a/serde/build.rs
+++ b/serde/build.rs
@@ -97,7 +97,8 @@ fn main() {
             || target.starts_with("aarch64")
             || target.starts_with("powerpc64")
             || target.starts_with("sparc64")
-            || target.starts_with("mips64el");
+            || target.starts_with("mips64el")
+            || target.starts_with("riscv64");
         let has_atomic32 = has_atomic64 || emscripten;
         if has_atomic64 {
             println!("cargo:rustc-cfg=std_atomic64");