Combine __USE_BSD and __USE_SVID into __USE_MISC.

This patch cleans up following the obsoletion of _BSD_SOURCE and
_SVID_SOURCE by combining __USE_BSD and __USE_SVID into __USE_MISC.

The only non-mechanical part of this patch is the changes to
features.h; everything else is simple substitution of __USE_MISC for
the old macros.  Thus, this patch leaves obviously redundant
conditionals such as "defined __USE_MISC || defined __USE_MISC", and
does not update #endif comments where they referred to BSD or SVID in
words instead of the literal macro name.  This is intended to
facilitate patch review by separating the less mechanical changes from
these purely mechanical changes into a separate patch.  (I do intend
to integrate all the changes from
<https://sourceware.org/ml/libc-alpha/2013-12/msg00226.html>, which I
believe includes all the trailing comment updates, in subsequent
patches.)

Tested x86_64.

	* include/features.h (__USE_BSD): Remove macro definitions.
	(__USE_SVID): Likewise.
	(_BSD_SOURCE): Likewise.
	(_SVID_SOURCE): Likewise.
	[!defined _BSD_SOURCE && !defined _SVID_SOURCE]: Remove condition
	from definition of _DEFAULT_SOURCE.
	[_BSD_SOURCE || _SVID_SOURCE]: Change condition to
	[_DEFAULT_SOURCE].
	* bits/fcntl.h [__USE_BSD]: Change condition to [__USE_MISC].
	* bits/mman.h [__USE_BSD]: Likewise.
	* bits/termios.h [__USE_BSD]: Likewise.
	* bits/waitstatus.h [__USE_BSD]: Likewise.
	* ctype/ctype.h [__USE_SVID]: Likewise.
	* dirent/dirent.h [__USE_BSD]: Likewise.
	* grp/grp.h [__USE_SVID]: Likewise.
	[__USE_BSD]: Likewise.
	* inet/netinet/igmp.h [__USE_BSD]: Likewise.
	* io/fcntl.h [__USE_BSD]: Likewise.
	* io/ftw.h [__USE_BSD]: Likewise.
	* io/sys/stat.h [__USE_BSD]: Likewise.
	* libio/bits/stdio-ldbl.h [__USE_BSD]: Likewise.
	* libio/bits/stdio2.h [__USE_BSD]: Likewise.
	* libio/stdio.h [__USE_SVID]: Likewise.
	[__USE_BSD]: Likewise.
	* math/math.h [__USE_SVID]: Likewise.
	[__USE_BSD]: Likewise.
	* misc/bits/syslog-ldbl.h [__USE_BSD]: Likewise.
	* misc/bits/syslog.h [__USE_BSD]: Likewise.
	* misc/search.h [__USE_SVID]: Likewise.
	* misc/sys/mman.h [__USE_BSD]: Likewise.
	* misc/sys/syslog.h [__USE_BSD]: Likewise.
	* misc/sys/uio.h [__USE_BSD]: Likewise.
	* posix/bits/unistd.h [__USE_BSD]: Likewise.
	* posix/glob.h [__USE_BSD]: Likewise.
	* posix/regex.h [__USE_BSD]: Likewise.
	* posix/sys/types.h [__USE_BSD]: Likewise.
	[__USE_SVID]: Likewise.
	* posix/sys/utsname.h [__USE_SVID]: Likewise.
	* posix/sys/wait.h [__USE_BSD]: Likewise.
	[__USE_SVID]: Likewise.
	* posix/unistd.h [__USE_BSD]: Likewise.
	[__USE_SVID]: Likewise.
	* pwd/pwd.h [__USE_SVID]: Likewise.
	* resolv/netdb.h [__USE_BSD]: Likewise.
	* setjmp/setjmp.h [__USE_BSD]: Likewise.
	* signal/signal.h [__USE_BSD]: Likewise.
	[__USE_SVID]: Likewise.
	* socket/sys/socket.h [__USE_BSD]: Likewise.
	* stdlib/fmtmsg.h [__USE_SVID]: Likewise.
	* stdlib/stdlib.h [__USE_BSD]: Likewise.
	[__USE_SVID]: Likewise.
	* string/bits/string2.h [__USE_BSD]: Likewise.
	[__USE_SVID]: Likewise.
	* string/bits/string3.h [__USE_BSD]: Likewise.
	* string/endian.h [__USE_BSD]: Likewise.
	* string/string.h [__USE_SVID]: Likewise.
	[__USE_BSD]: Likewise.
	* string/strings.h [__USE_BSD]: Likewise.
	* sysdeps/generic/netinet/ip.h [__USE_BSD]: Likewise.
	* sysdeps/gnu/netinet/ip_icmp.h [__USE_BSD]: Likewise.
	* sysdeps/mach/hurd/bits/fcntl.h [__USE_BSD]: Likewise.
	* sysdeps/mach/hurd/bits/stat.h [__USE_BSD]: Likewise.
	* sysdeps/unix/sysv/linux/alpha/bits/mman.h [__USE_BSD]: Likewise.
	* sysdeps/unix/sysv/linux/alpha/bits/termios.h [__USE_BSD]:
	Likewise.
	* sysdeps/unix/sysv/linux/bits/fcntl-linux.h [__USE_BSD]:
	Likewise.
	* sysdeps/unix/sysv/linux/bits/mman-linux.h [__USE_BSD]: Likewise.
	* sysdeps/unix/sysv/linux/bits/sys_errlist.h [__USE_BSD]:
	Likewise.
	* sysdeps/unix/sysv/linux/bits/termios.h [__USE_BSD]: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/termios.h [__USE_BSD]:
	Likewise.
	* sysdeps/unix/sysv/linux/netinet/if_ether.h [__USE_BSD]:
	Likewise.
	* sysdeps/unix/sysv/linux/netinet/if_fddi.h [__USE_BSD]: Likewise.
	* sysdeps/unix/sysv/linux/netinet/if_tr.h [__USE_BSD]: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/bits/termios.h [__USE_BSD]:
	Likewise.
	* sysdeps/unix/sysv/linux/sparc/bits/termios.h [__USE_BSD]:
	Likewise.
	* sysdeps/x86/bits/string.h [__USE_BSD]: Likewise.
	* sysvipc/sys/ipc.h [__USE_SVID]: Likewise.
	* termios/termios.h [__USE_BSD]: Likewise.
	* time/sys/time.h [__USE_BSD]: Likewise.
	* time/time.h [__USE_BSD]: Likewise.
	[__USE_SVID]: Likewise.

	* sysdeps/unix/sysv/linux/hppa/bits/mman.h [__USE_BSD]: Change
	condition to [__USE_MISC].

5 files changed, 12 insertions, 12 deletions

diff --git a/string/bits/string2.h b/string/bits/string2.h
index b3df708..fb83579 100644
--- a/string/bits/string2.h
+++ b/string/bits/string2.h
@@ -1258,7 +1258,7 @@ __strsep_3c (char **__s, char __reject1, char __reject2, char __reject3)
     }
   return __retval;
 }
-# ifdef __USE_BSD
+# ifdef __USE_MISC
 #  define strsep(s, reject) __strsep (s, reject)
 # endif
 #endif
@@ -1287,7 +1287,7 @@ extern char *__strdup (const char *__string) __THROW __attribute_malloc__;
 			  __retval; }))					      \
 		  : __strdup (s)))
 
-#  if defined __USE_SVID || defined __USE_BSD || defined __USE_XOPEN_EXTENDED
+#  if defined __USE_MISC || defined __USE_MISC || defined __USE_XOPEN_EXTENDED
 #   define strdup(s) __strdup (s)
 #  endif
 # endif
diff --git a/string/bits/string3.h b/string/bits/string3.h
index acd2577..7606090 100644
--- a/string/bits/string3.h
+++ b/string/bits/string3.h
@@ -37,7 +37,7 @@ __warndecl (__warn_memset_zero_len,
 #  undef mempcpy
 #  undef stpcpy
 # endif
-# ifdef __USE_BSD
+# ifdef __USE_MISC
 #  undef bcopy
 #  undef bzero
 # endif
@@ -84,7 +84,7 @@ __NTH (memset (void *__dest, int __ch, size_t __len))
   return __builtin___memset_chk (__dest, __ch, __len, __bos0 (__dest));
 }
 
-#ifdef __USE_BSD
+#ifdef __USE_MISC
 __fortify_function void
 __NTH (bcopy (const void *__src, void *__dest, size_t __len))
 {
diff --git a/string/endian.h b/string/endian.h
index 875fea3..9368b5c 100644
--- a/string/endian.h
+++ b/string/endian.h
@@ -41,7 +41,7 @@
 # define __FLOAT_WORD_ORDER __BYTE_ORDER
 #endif
 
-#ifdef	__USE_BSD
+#ifdef	__USE_MISC
 # define LITTLE_ENDIAN	__LITTLE_ENDIAN
 # define BIG_ENDIAN	__BIG_ENDIAN
 # define PDP_ENDIAN	__PDP_ENDIAN
@@ -55,7 +55,7 @@
 #endif
 
 
-#if defined __USE_BSD && !defined __ASSEMBLER__
+#if defined __USE_MISC && !defined __ASSEMBLER__
 /* Conversion interfaces.  */
 # include <bits/byteswap.h>
 
diff --git a/string/string.h b/string/string.h
index b127e8d..9fabf2b 100644
--- a/string/string.h
+++ b/string/string.h
@@ -54,7 +54,7 @@ __END_NAMESPACE_STD
 /* Copy no more than N bytes of SRC to DEST, stopping when C is found.
    Return the position in DEST one byte past where C was copied,
    or NULL if C was not found in the first N bytes of SRC.  */
-#if defined __USE_SVID || defined __USE_BSD || defined __USE_XOPEN
+#if defined __USE_MISC || defined __USE_MISC || defined __USE_XOPEN
 extern void *memccpy (void *__restrict __dest, const void *__restrict __src,
 		      int __c, size_t __n)
      __THROW __nonnull ((1, 2));
@@ -170,7 +170,7 @@ extern size_t strxfrm_l (char *__dest, const char *__src, size_t __n,
 			 __locale_t __l) __THROW __nonnull ((2, 4));
 #endif
 
-#if defined __USE_SVID || defined __USE_BSD || defined __USE_XOPEN_EXTENDED \
+#if defined __USE_MISC || defined __USE_MISC || defined __USE_XOPEN_EXTENDED \
     || defined __USE_XOPEN2K8
 /* Duplicate S, returning an identical malloc'd string.  */
 extern char *strdup (const char *__s)
@@ -450,7 +450,7 @@ extern char *strerror_l (int __errnum, __locale_t __l) __THROW;
    the namespace rules does not allow this.  */
 extern void __bzero (void *__s, size_t __n) __THROW __nonnull ((1));
 
-#ifdef __USE_BSD
+#ifdef __USE_MISC
 /* Copy N bytes of SRC to DEST (like memmove, but args reversed).  */
 extern void bcopy (const void *__src, void *__dest, size_t __n)
      __THROW __nonnull ((1, 2));
@@ -551,7 +551,7 @@ extern int strncasecmp_l (const char *__s1, const char *__s2,
      __THROW __attribute_pure__ __nonnull ((1, 2, 4));
 #endif
 
-#ifdef	__USE_BSD
+#ifdef	__USE_MISC
 /* Return the next DELIM-delimited token from *STRINGP,
    terminating it with a '\0', and update *STRINGP to point past it.  */
 extern char *strsep (char **__restrict __stringp,
diff --git a/string/strings.h b/string/strings.h
index 994c4b0..872a0b2 100644
--- a/string/strings.h
+++ b/string/strings.h
@@ -19,9 +19,9 @@
 #define	_STRINGS_H	1
 
 /* We don't need and should not read this file if <string.h> was already
-   read. The one exception being that if __USE_BSD isn't defined, then
+   read. The one exception being that if __USE_MISC isn't defined, then
    these aren't defined in string.h, so we need to define them here.  */
-#if !defined _STRING_H || !defined __USE_BSD
+#if !defined _STRING_H || !defined __USE_MISC
 
 # include <features.h>
 # define __need_size_t