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-rw-r--r--lib/Support/LockFileManager.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/Support/LockFileManager.cpp b/lib/Support/LockFileManager.cpp
index b050e5de8d..0204e75f84 100644
--- a/lib/Support/LockFileManager.cpp
+++ b/lib/Support/LockFileManager.cpp
@@ -22,6 +22,7 @@
#include <unistd.h>
#endif
using namespace llvm;
+using std::error_code;
/// \brief Attempt to read the lock file with the given name, if it exists.
///