remove support for non-ANSI compilation

*** 18,36 ****
   *
   * CDDL HEADER END
   */
  
  /*
   * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  #ifndef _SYS_AIOCB_H
  #define _SYS_AIOCB_H
  
- #pragma ident   "%Z%%M% %I%     %E% SMI"
- 
  #include <sys/types.h>
  #include <sys/fcntl.h>
  #include <sys/siginfo.h>
  #include <sys/aio.h>
  
--- 18,36 ----
   *
   * CDDL HEADER END
   */
  
  /*
+  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
+  *
   * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  #ifndef _SYS_AIOCB_H
  #define _SYS_AIOCB_H
  
  #include <sys/types.h>
  #include <sys/fcntl.h>
  #include <sys/siginfo.h>
  #include <sys/aio.h>
  
*** 38,52 ****
  extern "C" {
  #endif
  
  typedef struct aiocb {
          int             aio_fildes;
- #if     defined(__STDC__)
          volatile void   *aio_buf;               /* buffer location */
- #else
-         void            *aio_buf;               /* buffer location */
- #endif
          size_t          aio_nbytes;             /* length of transfer */
          off_t           aio_offset;             /* file offset */
          int             aio_reqprio;            /* request priority offset */
          struct sigevent aio_sigevent;           /* notification type */
          int             aio_lio_opcode;         /* listio operation */
--- 38,48 ----
*** 57,71 ****
  
  #ifdef _LARGEFILE64_SOURCE
  #if     !defined(_KERNEL)
  typedef struct aiocb64 {
          int             aio_fildes;
- #if     defined(__STDC__)
          volatile void   *aio_buf;               /* buffer location */
- #else
-         void            *aio_buf;               /* buffer location */
- #endif
          size_t          aio_nbytes;             /* length of transfer */
          off64_t         aio_offset;             /* file offset */
          int             aio_reqprio;            /* request priority offset */
          struct sigevent aio_sigevent;           /* notification type */
          int             aio_lio_opcode;         /* listio operation */
--- 53,63 ----