uclibc: add patch to sync sys/timex.h

This fixes a qemu-user compile error.

Reported-by: François Perrad <francois.perrad@gadz.org>
Reported-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/uclibc/0004-sync-header-with-GNU-libc-kernel.patch

@@ -0,0 +1,85 @@
+From bf2fd9c0c451a83aa729394255394744fc81d8a3 Mon Sep 17 00:00:00 2001
+From: Waldemar Brodkorb <wbx@openadk.org>
+Date: Sun, 5 Mar 2017 01:58:17 +0100
+Subject: [PATCH] sync header with GNU libc / kernel
+
+The header is not in sync with GNU libc and Linux kernel and
+therefore produces compile errors with qemu-user (2.8.0).
+
+Reported-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+---
+ include/sys/timex.h | 17 ++++++++++++-----
+ 1 file changed, 12 insertions(+), 5 deletions(-)
+
+diff --git a/include/sys/timex.h b/include/sys/timex.h
+index 4cb81d2..76fefa7 100644
+--- a/include/sys/timex.h
++++ b/include/sys/timex.h
+@@ -1,5 +1,4 @@
+-/* Copyright (C) 1995, 1996, 1997, 1999 Free Software Foundation, Inc.
+-   This file is part of the GNU C Library.
++/* Copyright (C) 1995-2017 Free Software Foundation, Inc.
+ 
+    The GNU C Library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+@@ -22,13 +21,14 @@
+ #include <sys/time.h>
+ #include <time.h>
+ 
+-/* These definitions from linux/timex.h as of 2.2.0.  */
++/* These definitions from linux/timex.h as of 3.18.  */
+ 
+ struct ntptimeval
+ {
+   struct timeval time;	/* current time (ro) */
+   long int maxerror;	/* maximum error (us) (ro) */
+   long int esterror;	/* estimated error (us) (ro) */
++  long int tai;		/* TAI offset (ro) */
+ };
+ 
+ struct timex
+@@ -44,7 +44,6 @@ struct timex
+   long int tolerance;	/* clock frequency tolerance (ppm) (read only) */
+   struct timeval time;	/* (read only) */
+   long int tick;	/* (modified) usecs between clock ticks */
+-
+   long int ppsfreq;	/* pps frequency (scaled ppm) (ro) */
+   long int jitter;	/* pps jitter (us) (ro) */
+   int shift;		/* interval duration (s) (shift) (ro) */
+@@ -54,6 +53,8 @@ struct timex
+   long int errcnt;	/* calibration errors (ro) */
+   long int stbcnt;	/* stability limit exceeded (ro) */
+ 
++  int tai;		/* TAI offset (ro) */
++
+   /* ??? */
+   int  :32; int  :32; int  :32; int  :32;
+   int  :32; int  :32; int  :32; int  :32;
+@@ -83,6 +84,9 @@ struct timex
+ #define MOD_TIMECONST	ADJ_TIMECONST
+ #define MOD_CLKB	ADJ_TICK
+ #define MOD_CLKA	ADJ_OFFSET_SINGLESHOT /* 0x8000 in original */
++#define MOD_TAI		ADJ_TAI
++#define MOD_MICRO	ADJ_MICRO
++#define MOD_NANO	ADJ_NANO
+ 
+ 
+ /* Status codes (timex.status) */
+@@ -102,9 +106,12 @@ struct timex
+ #define STA_PPSERROR	0x0800	/* PPS signal calibration error (ro) */
+ 
+ #define STA_CLOCKERR	0x1000	/* clock hardware fault (ro) */
++#define STA_NANO	0x2000	/* resolution (0 = us, 1 = ns) (ro) */
++#define STA_MODE	0x4000	/* mode (0 = PLL, 1 = FLL) (ro) */
++#define STA_CLK		0x8000	/* clock source (0 = A, 1 = B) (ro) */
+ 
+ #define STA_RONLY (STA_PPSSIGNAL | STA_PPSJITTER | STA_PPSWANDER | \
+-    STA_PPSERROR | STA_CLOCKERR) /* read-only bits */
++    STA_PPSERROR | STA_CLOCKERR | STA_NANO | STA_MODE | STA_CLK)
+ 
+ /* Clock states (time_state) */
+ #define TIME_OK		0	/* clock synchronized, no leap second */
+-- 
+2.1.4
+