Fix termios.h XCASE namespace (bug 19925).

bits/termios.h (various versions under sysdeps/unix/sysv/linux)
defines XCASE if defined __USE_MISC || defined __USE_XOPEN.  This
macro was removed in the 2001 edition of POSIX, and is not otherwise
reserved, so should not be defined for 2001 and later versions of
POSIX.  This patch fixes the conditions accordingly (leaving the macro
defined for __USE_MISC, so still in the default namespace).

Tested for x86_64 and x86 (testsuite, and that installed shared
libraries are unchanged by the patch).

	[BZ #19925]
	* sysdeps/unix/sysv/linux/alpha/bits/termios.h (XCASE): Do not
	define if [!__USE_MISC && __USE_XOPEN2K].
	* sysdeps/unix/sysv/linux/bits/termios.h (XCASE): Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/termios.h (XCASE): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/bits/termios.h (XCASE):
	Likewise.
	* sysdeps/unix/sysv/linux/sparc/bits/termios.h (XCASE): Likewise.
	* conform/Makefile (test-xfail-XOPEN2K/termios.h/conform): Remove
	variable.
	(test-xfail-XOPEN2K8/termios.h/conform): Likewise.

ChangeLog

@@ -1,3 +1,17 @@
+2016-04-08  Joseph Myers  <joseph@codesourcery.com>
+
+	[BZ #19925]
+	* sysdeps/unix/sysv/linux/alpha/bits/termios.h (XCASE): Do not
+	define if [!__USE_MISC && __USE_XOPEN2K].
+	* sysdeps/unix/sysv/linux/bits/termios.h (XCASE): Likewise.
+	* sysdeps/unix/sysv/linux/mips/bits/termios.h (XCASE): Likewise.
+	* sysdeps/unix/sysv/linux/powerpc/bits/termios.h (XCASE):
+	Likewise.
+	* sysdeps/unix/sysv/linux/sparc/bits/termios.h (XCASE): Likewise.
+	* conform/Makefile (test-xfail-XOPEN2K/termios.h/conform): Remove
+	variable.
+	(test-xfail-XOPEN2K8/termios.h/conform): Likewise.
+
 2016-04-07  Paul E. Murphy  <murphyp@linux.vnet.ibm.com>
 
 	* sysdeps/powerpc/powerpc64/multiarch/Makefile:

conform/Makefile

@@ -218,7 +218,6 @@ test-xfail-XOPEN2K/signal.h/conform = yes
 test-xfail-XOPEN2K/stdarg.h/conform = yes
 test-xfail-XOPEN2K/stdio.h/conform = yes
 test-xfail-XOPEN2K/sys/wait.h/conform = yes
-test-xfail-XOPEN2K/termios.h/conform = yes
 test-xfail-XOPEN2K/ucontext.h/conform = yes
 test-xfail-POSIX2008/arpa/inet.h/conform = yes
 test-xfail-POSIX2008/netdb.h/conform = yes
@@ -230,7 +229,6 @@ test-xfail-XOPEN2K8/limits.h/conform = yes
 test-xfail-XOPEN2K8/signal.h/conform = yes
 test-xfail-XOPEN2K8/stdio.h/conform = yes
 test-xfail-XOPEN2K8/sys/wait.h/conform = yes
-test-xfail-XOPEN2K8/termios.h/conform = yes
 
 conformtest-cc-flags = -I../include $(+sysdep-includes) $(sysincludes) -I..
 $(conformtest-header-tests): $(objpfx)%/conform.out: \

sysdeps/unix/sysv/linux/alpha/bits/termios.h

@@ -185,7 +185,7 @@ struct termios
 /* c_lflag bits */
 #define ISIG	0x00000080
 #define ICANON	0x00000100
-#if defined __USE_MISC || defined __USE_XOPEN
+#if defined __USE_MISC || (defined __USE_XOPEN && !defined __USE_XOPEN2K)
 # define XCASE	0x00004000
 #endif
 #define ECHO	0x00000008

sysdeps/unix/sysv/linux/bits/termios.h

@@ -177,7 +177,7 @@ struct termios
 /* c_lflag bits */
 #define ISIG	0000001
 #define ICANON	0000002
-#if defined __USE_MISC || defined __USE_XOPEN
+#if defined __USE_MISC || (defined __USE_XOPEN && !defined __USE_XOPEN2K)
 # define XCASE	0000004
 #endif
 #define ECHO	0000010

sysdeps/unix/sysv/linux/mips/bits/termios.h

@@ -175,7 +175,7 @@ struct termios
 /* c_lflag bits */
 #define ISIG	0000001		/* Enable signals.  */
 #define ICANON	0000002		/* Do erase and kill processing.  */
-#if defined __USE_MISC || defined __USE_XOPEN
+#if defined __USE_MISC || (defined __USE_XOPEN && !defined __USE_XOPEN2K)
 # define XCASE	0000004
 #endif
 #define ECHO	0000010		/* Enable echo.  */

sysdeps/unix/sysv/linux/powerpc/bits/termios.h

@@ -187,7 +187,7 @@ struct termios {
 /* c_lflag bits */
 #define ISIG	0x00000080
 #define ICANON	0x00000100
-#if defined __USE_MISC || defined __USE_XOPEN
+#if defined __USE_MISC || (defined __USE_XOPEN && !defined __USE_XOPEN2K)
 # define XCASE	0x00004000
 #endif
 #define ECHO	0x00000008

sysdeps/unix/sysv/linux/sparc/bits/termios.h

@@ -181,7 +181,7 @@ struct termios
 /* c_lflag bits */
 #define ISIG	0x00000001
 #define ICANON	0x00000002
-#if defined __USE_MISC || defined __USE_XOPEN
+#if defined __USE_MISC || (defined __USE_XOPEN && !defined __USE_XOPEN2K)
 # define XCASE	0x00000004
 #endif
 #define ECHO	0x00000008