zte's code,first commit

Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/build/uClibc/libc/sysdeps/linux/common/setpgid.c b/ap/build/uClibc/libc/sysdeps/linux/common/setpgid.c
new file mode 100644
index 0000000..0410c64
--- /dev/null
+++ b/ap/build/uClibc/libc/sysdeps/linux/common/setpgid.c
@@ -0,0 +1,25 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * setpgid() for uClibc
+ *
+ * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+#include <sys/syscall.h>
+
+#if defined __USE_UNIX98 || defined __USE_SVID
+#include <unistd.h>
+
+
+#define __NR___syscall_setpgid __NR_setpgid
+static __inline__ _syscall2(int, __syscall_setpgid,
+		__kernel_pid_t, pid, __kernel_pid_t, pgid)
+
+int setpgid(pid_t pid, pid_t pgid)
+{
+	return (__syscall_setpgid(pid, pgid));
+}
+libc_hidden_def(setpgid)
+#endif