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-rw-r--r--llvm/lib/Support/Unix/Threading.inc5
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/Support/Unix/Threading.inc b/llvm/lib/Support/Unix/Threading.inc
new file mode 100644
index 00000000000..35ec876904a
--- /dev/null
+++ b/llvm/lib/Support/Unix/Threading.inc
@@ -0,0 +1,5 @@
+#include <thread>
+
+void llvm::call_once(once_flag& flag, void (*fptr)(void)) {
+ std::call_once(flag, fptr);
+}
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