hopefully fix an apparent build error on windows.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68175 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/System/Win32/Path.inc b/lib/System/Win32/Path.inc
index ff96e33..fbf8f66 100644
--- a/lib/System/Win32/Path.inc
+++ b/lib/System/Win32/Path.inc
@@ -21,6 +21,7 @@
 
 #include "Win32.h"
 #include <malloc.h>
+#include <cstdio>
 
 // We need to undo a macro defined in Windows.h, otherwise we won't compile:
 #undef CopyFile