- emulate unavailable syscall getpgrp on e.g. ia64 (Stefan Assmann)

libc/sysdeps/linux/common/getpgrp.c

@@ -2,7 +2,7 @@
 /*
  * getpgrp() for uClibc
  *
- * Copyright (C) 2000-2006 by Erik Andersen <andersen@codepoet.org>
+ * Copyright (C) 2000-2008 by Erik Andersen <andersen@codepoet.org>
  *
  * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
  */
@@ -13,4 +13,16 @@
 #ifdef __NR_getpgrp
 /* According to the manpage the POSIX.1 version is favoured */
 _syscall0(pid_t, getpgrp)
+#elif defined __NR_getpgid && (defined __NR_getpid || defined __NR_getxpid)
+/* IA64 doesn't have a getpgrp syscall */
+pid_t getpgrp(void)
+{
+	return getpgid(getpid());
+}
+#elif defined __UCLIBC_HAS_STUBS__
+pid_t getpgrp(void)
+{
+	__set_errno(ENOSYS);
+	return -1;
+}
 #endif