Add ragel machine generators to SCONS

src/trusted/validator_ragel/unreviewed/decoder.h

Index: src/trusted/validator_ragel/unreviewed/decoder.h
===================================================================
--- src/trusted/validator_ragel/unreviewed/decoder.h	(revision 8170)
+++ src/trusted/validator_ragel/unreviewed/decoder.h	(working copy)
@@ -7,8 +7,23 @@
 #ifndef _DECODER_X86_64_H_
 #define _DECODER_X86_64_H_
 
-#include <inttypes.h>
+#if NACL_WINDOWS
+#include <windows.h>
+#include "native_client/src/include/portability.h"
 
+/*
+ * Microsoft C/C++ version 14.00.50727.762, which comes with Visual C++ 2005,
+ * and version 15.00.30729.01, which comes with Visual C++ 2008, do not.
+ * define _Bool.
+ */
+#if defined(_MSC_VER) && _MSC_VER <= 1500
+typedef int _Bool;
+#endif
+#else
+#include <stdint.h>
+#include <stdbool.h>
+#endif
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -69,7 +84,7 @@
   REG_ES_RDI,   /* For string instructions: %es:(%rsi).                       */
   REG_DS_RSI,   /* For string instructions: %ds:(%rdi).                       */
   REG_PORT_DX,  /* 16-bit DX: for in/out instructions.                        */
-  REG_NONE,     /* For modrm: both index and base can be absent.              */
+  NO_REG,       /* For modrm: both index and base can be absent.              */
   REG_ST,       /* For x87 instructions: implicit %st.                        */
   JMP_TO        /* Operand is jump target address: usually %rip+offset.       */
 };