--- /dev/null
+# Copyright (C) 1992, 1993 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 Library General Public License
+# as published by the Free Software Foundation; either version 2 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
+# Library General Public License for more details.
+
+# You should have received a copy of the GNU Library General Public
+# License along with the GNU C Library; see the file COPYING.LIB. If
+# not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+# Cambridge, MA 02139, USA.
+
+ifeq ($(subdir),posix)
+
+sysdep_routines := $(sysdep_routines) sysconfig pgrpsys \
+ __getpgid __setpgid __waitid
+
+endif
+
+
+ifeq ($(subdir),signal)
+
+sysdep_routines := $(sysdep_routines) sys-sig
+
+endif
+
+ifeq ($(subdir),misc)
+
+sysdep_routines := $(sysdep_routines) sysinfo
+
+endif
--- /dev/null
+/* Copyright (C) 1993 Free Software Foundation, Inc.
+ Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/types.h>
+
+extern int __pgrpsys __P ((int type, ...));
+
+/* Get the process group ID of process PID. */
+int
+DEFUN(__getpgid, (pid), pid_t pid)
+{
+ return __pgrpsys (4, pid);
+}