From d68fbe4f8c7d5d75df536289d92df5151ffbb14d Mon Sep 17 00:00:00 2001
From: Max Desiatov <max@desiatov.com>
Date: Sun, 8 Aug 2021 14:47:37 +0100
Subject: [PATCH] Wasm: add isOSWASI check for concurrency imports

---
 lib/Frontend/Frontend.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/Frontend/Frontend.cpp b/lib/Frontend/Frontend.cpp
index f33c588a8ecb4..dee426f32e330 100644
--- a/lib/Frontend/Frontend.cpp
+++ b/lib/Frontend/Frontend.cpp
@@ -764,6 +764,8 @@ static bool shouldImportConcurrencyByDefault(const llvm::Triple &target) {
   if (target.isOSLinux())
     return true;
 #if SWIFT_IMPLICIT_CONCURRENCY_IMPORT
+  if (target.isOSWASI())
+    return true;
   if (target.isOSOpenBSD())
     return true;
 #endif