| /* Copyright (C) 1991-2016 Free Software Foundation, Inc. | 
 |    This file is part of the GNU C Library. | 
 |  | 
 |    The GNU C Library is free software; you can redistribute it and/or | 
 |    modify it under the terms of the GNU Lesser General Public | 
 |    License as published by the Free Software Foundation; either | 
 |    version 2.1 of the License, or (at your option) any later version. | 
 |  | 
 |    The GNU C Library is distributed in the hope that it will be useful, | 
 |    but WITHOUT ANY WARRANTY; without even the implied warranty of | 
 |    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU | 
 |    Lesser General Public License for more details. | 
 |  | 
 |    You should have received a copy of the GNU Lesser General Public | 
 |    License along with the GNU C Library; if not, see | 
 |    <http://www.gnu.org/licenses/>.  */ | 
 |  | 
 | #include <unistd.h> | 
 | #include <sys/types.h> | 
 |  | 
 | /* Get the process group ID of process PID.  */ | 
 | pid_t | 
 | __getpgid (pid_t pid) | 
 | { | 
 |   return pid; | 
 | } | 
 | libc_hidden_def (__getpgid) | 
 | weak_alias (__getpgid, getpgid) | 
 |  | 
 | stub_warning (getpgid) |