Fix missing inttypes.h definitions for Visual Studio 2010 and earliers. Related to issue #22.
diff --git a/json_inttypes.h b/json_inttypes.h
index b71bb09..2f84ade 100644
--- a/json_inttypes.h
+++ b/json_inttypes.h
@@ -4,13 +4,15 @@
#include "json_config.h"
-#if defined(_MSC_VER) && _MSC_VER < 1600
+#if defined(_MSC_VER) && _MSC_VER < 1700
/* Anything less than Visual Studio C++ 10 is missing stdint.h and inttypes.h */
typedef __int32 int32_t;
#define INT32_MIN ((int32_t)_I32_MIN)
#define INT32_MAX ((int32_t)_I32_MAX)
typedef __int64 int64_t;
+#define INT64_MIN ((int64_t)_I64_MIN)
+#define INT64_MAX ((int64_t)_I64_MAX)
#define PRId64 "I64d"
#define SCNd64 "I64d"