package/uclibc: fix termios redefinition issue for PowerPC

Fix redefinition of 'struct termios' by syncing termios powerpc headers
from glibc, the commit which fixed the same issue in glibc:

    d4795e4a43e6f0c221bc5dc64c612206a21a177b PowerPC: Fix termios definitions

    https://sourceware.org/git/?p=glibc.git;a=commit;h=d4795e4a43e6f0c221bc5dc64c612206a21a177b

it fixed the following bug request:

    https://bugzilla.redhat.com/show_bug.cgi?id=1122714

In case of Buildroot it fixes flashrom build for PowerPC.

Fixes:
	http://autobuild.buildroot.net/results/797dde5cbf0e94162c7cc7b557841605c78ac2f3/

Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit 2c6983820890bbad2d4c05af3c22cbce96c1a71d)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/uclibc/0005-PowerPC-sync-with-termios-fix-from-glibc.patch

@@ -0,0 +1,172 @@
+From 67b3b894517893e94b9eed46f38c5d631b87a200 Mon Sep 17 00:00:00 2001
+From: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
+Date: Tue, 20 Aug 2019 23:16:18 +0300
+Subject: [PATCH] PowerPC: Fix termios definitions
+
+This patch fixes the incorrect guard by __USE_MISC of struct winsize and
+struct termio in powerpc termios header.  Current states leads to build
+failures if the program defines _XOPEN_SOURCE, but not _DEFAULT_SOURCE
+or either _BSD_SOURCE or _SVID_SOURCE.  Without any definition,
+__USE_MISC will not be defined and neither the struct definitions.
+
+This patch copies the default Linux ioctl-types.h by adjusting only the
+character control field (c_cc) size in struct termio.
+
+Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
+[Vadim: adopted for uclibc ]
+---
+ libc/sysdeps/linux/powerpc/bits/ioctl-types.h | 74 ++++++++++++++++++-
+ libc/sysdeps/linux/powerpc/bits/termios.h     | 48 ------------
+ 2 files changed, 73 insertions(+), 49 deletions(-)
+
+diff --git a/libc/sysdeps/linux/powerpc/bits/ioctl-types.h b/libc/sysdeps/linux/powerpc/bits/ioctl-types.h
+index 87b8265af..926061fa8 100644
+--- a/libc/sysdeps/linux/powerpc/bits/ioctl-types.h
++++ b/libc/sysdeps/linux/powerpc/bits/ioctl-types.h
+@@ -1,5 +1,77 @@
++/* Structure types for pre-termios terminal ioctls.  Linux/powerpc version.
++   Copyright (C) 2014-2019 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/>.  */
++
+ #ifndef _SYS_IOCTL_H
+ # error "Never use <bits/ioctl-types.h> directly; include <sys/ioctl.h> instead."
+ #endif
+ 
+-#include <termios.h>
++/* Get definition of constants for use with `ioctl'.  */
++#include <asm/ioctls.h>
++
++
++struct winsize
++  {
++    unsigned short int ws_row;
++    unsigned short int ws_col;
++    unsigned short int ws_xpixel;
++    unsigned short int ws_ypixel;
++  };
++
++#define NCC 10
++struct termio
++  {
++    unsigned short int c_iflag;		/* input mode flags */
++    unsigned short int c_oflag;		/* output mode flags */
++    unsigned short int c_cflag;		/* control mode flags */
++    unsigned short int c_lflag;		/* local mode flags */
++    unsigned char c_line;		/* line discipline */
++    unsigned char c_cc[NCC];		/* control characters */
++};
++
++/* modem lines */
++#define TIOCM_LE	0x001
++#define TIOCM_DTR	0x002
++#define TIOCM_RTS	0x004
++#define TIOCM_ST	0x008
++#define TIOCM_SR	0x010
++#define TIOCM_CTS	0x020
++#define TIOCM_CAR	0x040
++#define TIOCM_RNG	0x080
++#define TIOCM_DSR	0x100
++#define TIOCM_CD	TIOCM_CAR
++#define TIOCM_RI	TIOCM_RNG
++
++/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
++
++/* line disciplines */
++#define N_TTY		0
++#define N_SLIP		1
++#define N_MOUSE		2
++#define N_PPP		3
++#define N_STRIP		4
++#define N_AX25		5
++#define N_X25		6	/* X.25 async  */
++#define N_6PACK		7
++#define N_MASC		8	/* Mobitex module  */
++#define N_R3964		9	/* Simatic R3964 module  */
++#define N_PROFIBUS_FDL	10	/* Profibus  */
++#define N_IRDA		11	/* Linux IR  */
++#define N_SMSBLOCK	12	/* SMS block mode  */
++#define N_HDLC		13	/* synchronous HDLC  */
++#define N_SYNC_PPP	14	/* synchronous PPP  */
++#define	N_HCI		15	/* Bluetooth HCI UART  */
+diff --git a/libc/sysdeps/linux/powerpc/bits/termios.h b/libc/sysdeps/linux/powerpc/bits/termios.h
+index ffd99a5e2..83380685f 100644
+--- a/libc/sysdeps/linux/powerpc/bits/termios.h
++++ b/libc/sysdeps/linux/powerpc/bits/termios.h
+@@ -256,23 +256,6 @@ struct ltchars {
+ #define TIOCPKT_NOSTOP		16
+ #define TIOCPKT_DOSTOP		32
+ 
+-struct winsize {
+-	unsigned short ws_row;
+-	unsigned short ws_col;
+-	unsigned short ws_xpixel;
+-	unsigned short ws_ypixel;
+-};
+-
+-#define NCC 10
+-struct termio {
+-	unsigned short c_iflag;		/* input mode flags */
+-	unsigned short c_oflag;		/* output mode flags */
+-	unsigned short c_cflag;		/* control mode flags */
+-	unsigned short c_lflag;		/* local mode flags */
+-	unsigned char c_line;		/* line discipline */
+-	unsigned char c_cc[NCC];	/* control characters */
+-};
+-
+ /* c_cc characters */
+ #define _VINTR	0
+ #define _VQUIT	1
+@@ -285,36 +268,5 @@ struct termio {
+ #define _VEOL2	8
+ #define _VSWTC	9
+ 
+-/* modem lines */
+-#define TIOCM_LE	0x001
+-#define TIOCM_DTR	0x002
+-#define TIOCM_RTS	0x004
+-#define TIOCM_ST	0x008
+-#define TIOCM_SR	0x010
+-#define TIOCM_CTS	0x020
+-#define TIOCM_CAR	0x040
+-#define TIOCM_RNG	0x080
+-#define TIOCM_DSR	0x100
+-#define TIOCM_CD	TIOCM_CAR
+-#define TIOCM_RI	TIOCM_RNG
+-
+ /* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
+ #define TIOCSER_TEMT    0x01	/* Transmitter physically empty */
+-
+-/* line disciplines */
+-#define N_TTY		0
+-#define N_SLIP		1
+-#define N_MOUSE		2
+-#define N_PPP		3
+-#define N_STRIP		4
+-#define N_AX25		5
+-#define N_X25		6	/* X.25 async  */
+-#define N_6PACK		7
+-#define N_MASC		8	/* Mobitex module  */
+-#define N_R3964		9	/* Simatic R3964 module  */
+-#define N_PROFIBUS_FDL	10	/* Profibus  */
+-#define N_IRDA		11	/* Linux IR  */
+-#define N_SMSBLOCK	12	/* SMS block mode  */
+-#define N_HDLC		13	/* synchronous HDLC  */
+-#define N_SYNC_PPP	14	/* synchronous PPP  */
+-#define	N_HCI		15	/* Bluetooth HCI UART  */
+-- 
+2.22.0
+