remove support for non-ANSI compilation

*** 18,27 ****
--- 18,29 ----
   * information: Portions Copyright [yyyy] [name of copyright owner]
   *
   * CDDL HEADER END
   */
  /*
+  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
+  *
   * Copyright 1989 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  /*      Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T     */
*** 37,48 ****
   */
  
  #ifndef _NDBM_H
  #define _NDBM_H
  
- #pragma ident   "%Z%%M% %I%     %E% SMI"
- 
  #include <sys/feature_tests.h>
  #include <sys/types.h>
  
  #ifdef  __cplusplus
  extern "C" {
--- 39,48 ----
*** 88,118 ****
          char    *dptr;
          long    dsize;
  } datum;
  #endif
  
- #ifdef  __STDC__
  DBM     *dbm_open(const char *, int, mode_t);
  void    dbm_close(DBM *);
  datum   dbm_fetch(DBM *, datum);
  datum   dbm_firstkey(DBM *);
  datum   dbm_nextkey(DBM *);
  int     dbm_delete(DBM *, datum);
  int     dbm_store(DBM *, datum, datum, int);
  int     dbm_clearerr(DBM *);
  int     dbm_error(DBM *);
- #else
- DBM     *dbm_open();
- void    dbm_close();
- datum   dbm_fetch();
- datum   dbm_firstkey();
- datum   dbm_nextkey();
- int     dbm_delete();
- int     dbm_store();
- int     dbm_clearerr();
- int     dbm_error();
- #endif
  
  #define _DBM_RDONLY     0x1     /* data base open read-only */
  #define _DBM_IOERR      0x2     /* data base I/O error */
  
  #define dbm_rdonly(__db)        ((__db)->dbm_flags & _DBM_RDONLY)
--- 88,106 ----