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-rw-r--r--llvm/unittests/Support/LockFileManagerTest.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/llvm/unittests/Support/LockFileManagerTest.cpp b/llvm/unittests/Support/LockFileManagerTest.cpp
index 93fa10bee07..3d6357c291b 100644
--- a/llvm/unittests/Support/LockFileManagerTest.cpp
+++ b/llvm/unittests/Support/LockFileManagerTest.cpp
@@ -14,6 +14,7 @@
#include <memory>
using namespace llvm;
+using std::error_code;
namespace {
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