Update FLAC to 1.3.1

src/libFLAC/include/private/crc.h

Index: src/libFLAC/include/private/crc.h
diff --git a/src/libFLAC/include/private/crc.h b/src/libFLAC/include/private/crc.h
index 7a224b43137133bd4a71d1d673d4e60bfee603c8..29c512cedec680f1e5da92d57e475adcd94f4773 100644
--- a/src/libFLAC/include/private/crc.h
+++ b/src/libFLAC/include/private/crc.h
@@ -1,5 +1,6 @@
 /* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007  Josh Coalson
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2014  Xiph.Org Foundation
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -33,7 +34,6 @@
 #define FLAC__PRIVATE__CRC_H
 
 #include "FLAC/ordinals.h"
-#include <stdlib.h>
 
 /* 8 bit CRC generator, MSB shifted first
 ** polynomial = x^8 + x^2 + x^1 + x^0
@@ -42,21 +42,21 @@
 extern FLAC__byte const FLAC__crc8_table[256];
 #define FLAC__CRC8_UPDATE(data, crc) (crc) = FLAC__crc8_table[(crc) ^ (data)];
 void FLAC__crc8_update(const FLAC__byte data, FLAC__uint8 *crc);
-void FLAC__crc8_update_block(const FLAC__byte *data, size_t len, FLAC__uint8 *crc);
-FLAC__uint8 FLAC__crc8(const FLAC__byte *data, size_t len);
+void FLAC__crc8_update_block(const FLAC__byte *data, unsigned len, FLAC__uint8 *crc);
+FLAC__uint8 FLAC__crc8(const FLAC__byte *data, unsigned len);
 
 /* 16 bit CRC generator, MSB shifted first
 ** polynomial = x^16 + x^15 + x^2 + x^0
 ** init = 0
 */
-extern unsigned FLAC__crc16_table[256];
+extern unsigned const FLAC__crc16_table[256];
 
-#define FLAC__CRC16_UPDATE(data, crc) (((((crc)<<8) & 0xffff) ^ FLAC__crc16_table[((crc)>>8) ^ (data)]))
+#define FLAC__CRC16_UPDATE(data, crc) ((((crc)<<8) & 0xffff) ^ FLAC__crc16_table[((crc)>>8) ^ (data)])
 /* this alternate may be faster on some systems/compilers */
 #if 0
 #define FLAC__CRC16_UPDATE(data, crc) ((((crc)<<8) ^ FLAC__crc16_table[((crc)>>8) ^ (data)]) & 0xffff)
 #endif
 
-unsigned FLAC__crc16(const FLAC__byte *data, size_t len);
+unsigned FLAC__crc16(const FLAC__byte *data, unsigned len);
 
 #endif