Only use wasm_sync if built with atomics

rayon-rs · Dec 25, 2023 · 6a2f0c9 · 6a2f0c9
1 parent f05faf6
commit 6a2f0c9
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Showing 2 changed files with 12 additions and 3 deletions.
diff --git a/rayon-core/Cargo.toml b/rayon-core/Cargo.toml
@@ -20,7 +20,7 @@ categories = ["concurrency"]
 crossbeam-deque = "0.8.1"
 crossbeam-utils = "0.8.0"
 
-[target.'cfg(all(target_arch = "wasm32", target_os = "unknown"))'.dependencies]
+[target.'cfg(all(target_arch = "wasm32", target_os = "unknown", target_feature = "atomics"))'.dependencies]
 wasm_sync = "0.1.0"
 
 [dev-dependencies]

diff --git a/rayon-core/src/lib.rs b/rayon-core/src/lib.rs
@@ -103,9 +103,18 @@ pub use self::thread_pool::current_thread_index;
 pub use self::thread_pool::ThreadPool;
 pub use self::thread_pool::{yield_local, yield_now, Yield};
 
-#[cfg(not(all(target_arch = "wasm32", target_os = "unknown")))]
+#[cfg(not(all(
+    target_arch = "wasm32",
+    target_os = "unknown",
+    target_feature = "atomics"
+)))]
 pub use std::sync;
-#[cfg(all(target_arch = "wasm32", target_os = "unknown"))]
+
+#[cfg(all(
+    target_arch = "wasm32",
+    target_os = "unknown",
+    target_feature = "atomics"
+))]
 pub use wasm_sync as sync;
 
 use self::registry::{CustomSpawn, DefaultSpawn, ThreadSpawn};