remove support for non-ANSI compilation

*** 22,40 ****
  /*      Copyright (c) 1988 AT&T */
  /*        All Rights Reserved   */
  
  
  /*
   * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  #ifndef _GRP_H
  #define _GRP_H
  
- #pragma ident   "%Z%%M% %I%     %E% SMI"        /* SVr4.0 1.3.3.1 */
- 
  #include <sys/feature_tests.h>
  
  #include <sys/types.h>
  
  #if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX)
--- 22,40 ----
  /*      Copyright (c) 1988 AT&T */
  /*        All Rights Reserved   */
  
  
  /*
+  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
+  *
   * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  #ifndef _GRP_H
  #define _GRP_H
  
  #include <sys/feature_tests.h>
  
  #include <sys/types.h>
  
  #if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX)
*** 50,61 ****
          char    *gr_passwd;
          gid_t   gr_gid;
          char    **gr_mem;
  };
  
- #if defined(__STDC__)
- 
  extern struct group *getgrgid(gid_t);           /* MT-unsafe */
  extern struct group *getgrnam(const char *);    /* MT-unsafe */
  
  #if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX)
  extern struct group *getgrent_r(struct group *, char *, int);
--- 50,59 ----
*** 70,101 ****
  extern void endgrent(void);
  extern void setgrent(void);
  extern struct group *getgrent(void);            /* MT-unsafe */
  #endif /* defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX)... */
  
- #else
- 
- extern struct group *getgrgid();                /* MT-unsafe */
- extern struct group *getgrnam();                /* MT-unsafe */
- 
- #if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX)
- extern struct group *getgrent_r();
- extern struct group *fgetgrent_r();
- 
- extern struct group *fgetgrent();               /* MT-unsafe */
- extern int initgroups();
- #endif /* defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) */
- 
- #if defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)
- extern void endgrent();
- extern void setgrent();
- extern struct group *getgrent();                /* MT-unsafe */
- #endif /* defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX)... */
- 
- #endif  /* __STDC__ */
- 
- 
  /*
   * getgrgid_r() & getgrnam_r() prototypes are defined here.
   */
  
  /*
--- 68,77 ----
*** 131,142 ****
   */
  
  #if     defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX) || \
          (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_POSIX_PTHREAD_SEMANTICS)
  
- #if     defined(__STDC__)
- 
  #if     (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_POSIX_PTHREAD_SEMANTICS)
  
  #ifdef __PRAGMA_REDEFINE_EXTNAME
  #pragma redefine_extname getgrgid_r __posix_getgrgid_r
  #pragma redefine_extname getgrnam_r __posix_getgrnam_r
--- 107,116 ----
*** 178,241 ****
  extern struct group *getgrgid_r(gid_t, struct group *, char *, int);
  extern struct group *getgrnam_r(const char *, struct group *, char *, int);
  
  #endif  /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */
  
- #else  /* __STDC__ */
- 
- #if     (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_POSIX_PTHREAD_SEMANTICS)
- 
- #ifdef __PRAGMA_REDEFINE_EXTNAME
- #pragma redefine_extname getgrgid_r __posix_getgrgid_r
- #pragma redefine_extname getgrnam_r __posix_getgrnam_r
- extern int getgrgid_r();
- extern int getgrnam_r();
- #else  /* __PRAGMA_REDEFINE_EXTNAME */
- 
- extern int __posix_getgrgid_r();
- extern int __posix_getgrnam_r();
- 
- #ifdef  __lint
- 
- #define getgrgid_r __posix_getgrgid_r
- #define getgrnam_r __posix_getgrnam_r
- 
- #else   /* !__lint */
- 
- static int
- getgrgid_r(__gid, __grp, __buf, __len, __res)
-         gid_t __gid;
-         struct group *__grp;
-         char *__buf;
-         int __len;
-         struct group **__res;
- {
-         return (__posix_getgrgid_r(__gid, __grp, __buf, __len, __res));
- }
- static int
- getgrnam_r(__cb, __grp, __buf, __len, __res)
-         char *__cb;
-         struct group *__grp;
-         char *__buf;
-         int __len;
-         struct group **__res;
- {
-         return (__posix_getgrnam_r(__cb, __grp, __buf, __len, __res));
- }
- 
- #endif /* !__lint */
- #endif /* __PRAGMA_REDEFINE_EXTNAME */
- 
- #else  /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */
- 
- extern struct group *getgrgid_r();
- extern struct group *getgrnam_r();
- 
- #endif /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */
- 
- #endif /* __STDC__ */
- 
  #endif /* defined(__EXTENSIONS__) || !defined(__XOPEN_OR_POSIX)... */
  
  #ifdef  __cplusplus
  }
  #endif
--- 152,161 ----