MFB fix VC6 build

ext/sqlite3/libsqlite/sqlite3.h

@@ -57,7 +57,7 @@ extern "C" {
 #if (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1))
   /* GCC added the deprecated attribute in version 3.1 */
   #define SQLITE_DEPRECATED __attribute__ ((deprecated))
-#elif defined(_MSC_VER)
+#elif defined(_MSC_VER) && _MSC_VER >= 1300
   #define SQLITE_DEPRECATED __declspec(deprecated)
 #else
   #define SQLITE_DEPRECATED
@@ -70,7 +70,7 @@ extern "C" {
   /* I can confirm that it does not work on version 4.1.0... */
   /* First appears in GCC docs for version 4.3.0 */
   #define SQLITE_EXPERIMENTAL __attribute__ ((warning ("is experimental")))
-#elif defined(_MSC_VER)
+#elif defined(_MSC_VER) && _MSC_VER >= 1500
   #define SQLITE_EXPERIMENTAL __declspec(deprecated("was declared experimental"))
 #else
   #define SQLITE_EXPERIMENTAL