message: try to fix compile issue
diff: @@ -67,15 +67,15 @@ XXH32 6.8 GB/s 6.0 GB/s
  #ifndef XXHASH_H_5627135585666179
  #define XXHASH_H_5627135585666179 1
  +#include <cstddef> /* size_t */
  +
  #if defined (__cplusplus)
  extern "C" {
  #endif
  -
  /* ****************************
  * Definitions
  ******************************/
  -#include <cstddef> /* size_t */
  typedef enum { XXH_OK=0, XXH_ERROR } XXH_errorcode;
  