6652716 Need an ARCFOUR implementation optimized for Intel EM64T

*** 17,34 ****
   * information: Portions Copyright [yyyy] [name of copyright owner]
   *
   * CDDL HEADER END
   */
  /*
!  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  #ifndef _ARCFOUR_H
  #define _ARCFOUR_H
  
! #pragma ident   "@(#)arcfour.h  1.6     07/03/29 SMI"
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
--- 17,34 ----
   * information: Portions Copyright [yyyy] [name of copyright owner]
   *
   * CDDL HEADER END
   */
  /*
!  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  #ifndef _ARCFOUR_H
  #define _ARCFOUR_H
  
! #pragma ident   "@(#)arcfour.h  1.7     08/03/20 SMI"
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
*** 48,57 ****
--- 48,60 ----
  void arcfour_crypt(ARCFour_key *key, uchar_t *in, uchar_t *out, size_t len);
  #ifdef  sun4u
  void arcfour_crypt_aligned(ARCFour_key *key, size_t len, uchar_t *in,
      uchar_t *out);
  #endif  /* sun4u */
+ #ifdef  __amd64
+ int arcfour_crypt_on_intel(void);
+ #endif  /* _amd64 */
  
  #ifdef  __cplusplus
  }
  #endif