remove support for non-ANSI compilation

*** 18,35 ****
   * information: Portions Copyright [yyyy] [name of copyright owner]
   *
   * CDDL HEADER END
   */
  /*
   * Copyright (c) 1999 by Sun Microsystems, Inc. All rights reserved.
   */
  
  #ifndef _AUTH_ATTR_H
  #define _AUTH_ATTR_H
  
- #pragma ident   "%Z%%M% %I%     %E% SMI"
- 
  #ifdef  __cplusplus
  extern "C" {
  #endif
  
  #include <sys/types.h>
--- 18,34 ----
   * information: Portions Copyright [yyyy] [name of copyright owner]
   *
   * CDDL HEADER END
   */
  /*
+  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
   * Copyright (c) 1999 by Sun Microsystems, Inc. All rights reserved.
   */
  
  #ifndef _AUTH_ATTR_H
  #define _AUTH_ATTR_H
  
  #ifdef  __cplusplus
  extern "C" {
  #endif
  
  #include <sys/types.h>
*** 88,115 ****
          char   *short_desc;     /* short description */
          char   *long_desc;      /* long description */
          kva_t  *attr;           /* array of key-value pair attributes */
  } authattr_t;
  
- #ifdef __STDC__
  extern authattr_t *getauthnam(const char *);
  extern authattr_t *getauthattr(void);
  extern void setauthattr(void);
  extern void endauthattr(void);
  extern void free_authattr(authattr_t *);
  extern int chkauthattr(const char *, const char *);
  
- #else                           /* not __STDC__ */
- 
- extern authattr_t *getauthnam();
- extern authattr_t *getauthattr();
- extern void setauthattr();
- extern void endauthattr();
- extern void free_authattr();
- extern int chkauthattr();
- #endif
- 
  #ifdef  __cplusplus
  }
  #endif
  
  #endif  /* _AUTH_ATTR_H */
--- 87,103 ----