[ORC] Add missing <thread> header to RPCSerialization.h.

llvm-svn: 281257

diff --git a/llvm/include/llvm/ExecutionEngine/Orc/RPCSerialization.h b/llvm/include/llvm/ExecutionEngine/Orc/RPCSerialization.h
index 5ed6e45..fdba8b9 100644 (file)
--- a/llvm/include/llvm/ExecutionEngine/Orc/RPCSerialization.h
+++ b/llvm/include/llvm/ExecutionEngine/Orc/RPCSerialization.h
@@ -12,6 +12,7 @@
 
 #include "OrcError.h"
 #include <sstream>
+#include <thread>
 
 namespace llvm {
 namespace orc {