eng_rsax.c: improve portability.

crypto/engine/eng_rsax.c

@@ -227,10 +227,13 @@ static int e_rsax_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))
 
 
 #ifndef OPENSSL_NO_RSA
-#include <stdint.h>
 
-typedef uint64_t UINT64;
-typedef uint16_t UINT16;
+#ifdef _WIN32
+typedef unsigned __int64 UINT64;
+#else
+typedef unsigned long long UINT64;
+#endif
+typedef unsigned short UINT16;
 
 /* Table t is interleaved in the following manner:
  * The order in memory is t[0][0], t[0][1], ..., t[0][7], t[1][0], ...