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-rw-r--r--MdePkg/Library/BaseLib/SynchronizationMsc.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseLib/SynchronizationMsc.c b/MdePkg/Library/BaseLib/SynchronizationMsc.c
index de271aea26..962c61bd3b 100644
--- a/MdePkg/Library/BaseLib/SynchronizationMsc.c
+++ b/MdePkg/Library/BaseLib/SynchronizationMsc.c
@@ -20,6 +20,7 @@
/**
Microsoft Visual Studio 7.1 Function Prototypes for read write barrier Intrinsics.
**/
+
void _ReadWriteBarrier (void);
#pragma intrinsic(_ReadWriteBarrier)