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

@@ -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  */

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  */