--- Libc/Libc-320/include/grp.h
+++ Libc/Libc-262.2.12/include/grp.h
@@ -79,19 +79,16 @@
 #include <sys/cdefs.h>
 
 __BEGIN_DECLS
-struct group *getgrgid(gid_t);
-struct group *getgrnam(const char *);
-int getgrgid_r(gid_t, struct group *, char *, size_t, struct group **);
-int getgrnam_r(const char *, struct group *, char *, size_t, struct group **);
+struct group *getgrgid __P((gid_t));
+struct group *getgrnam __P((const char *));
+int getgrgid_r __P((gid_t, struct group *, char *, size_t, struct group **));
+int getgrnam_r __P((const char *, struct group *, char *, size_t, struct group **));
 #ifndef _POSIX_SOURCE
-struct group *getgrent(void);
-#ifndef _XOPEN_SOURCE
-char *group_from_gid(gid_t, int);
-#endif
-int setgrent(void);
-void endgrent(void);
-void setgrfile(const char *);
-int setgroupent(int);
+struct group *getgrent __P((void));
+int setgrent __P((void));
+void endgrent __P((void));
+void setgrfile __P((const char *));
+int setgroupent __P((int));
 #endif
 __END_DECLS