Defines for UEFI environment under MSVC added
diff --git a/library/debug.c b/library/debug.c
index 2497a3b..fb0ec71 100644
--- a/library/debug.c
+++ b/library/debug.c
@@ -32,11 +32,15 @@
#include <stdarg.h>
#include <stdlib.h>
-#if defined _MSC_VER && !defined snprintf
+#if defined(EFIX64) || defined(EFI32)
+#include <stdio.h>
+#endif
+
+#if defined(_MSC_VER) && !defined snprintf
#define snprintf _snprintf
#endif
-#if defined _MSC_VER && !defined vsnprintf
+#if defined(_MSC_VER) && !defined vsnprintf
#define vsnprintf _vsnprintf
#endif