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-rw-r--r--bits/byteswap-16.h34
-rw-r--r--bits/byteswap.h112
-rw-r--r--bits/confname.h675
-rw-r--r--bits/dirent.h59
-rw-r--r--bits/dlfcn.h64
-rw-r--r--bits/elfclass.h14
-rw-r--r--bits/endian.h13
-rw-r--r--bits/environments.h87
-rw-r--r--bits/errno.h34
-rw-r--r--bits/fcntl.h149
-rw-r--r--bits/fenv.h63
-rw-r--r--bits/fenvinline.h8
-rw-r--r--bits/floatn.h35
-rw-r--r--bits/flt-eval-method.h42
-rw-r--r--bits/fp-fast.h39
-rw-r--r--bits/fp-logb.h28
-rw-r--r--bits/huge_val.h28
-rw-r--r--bits/huge_val_flt128.h23
-rw-r--r--bits/huge_valf.h28
-rw-r--r--bits/huge_vall.h28
-rw-r--r--bits/hwcap.h23
-rw-r--r--bits/in.h115
-rw-r--r--bits/inf.h32
-rw-r--r--bits/ioctl-types.h113
-rw-r--r--bits/ioctls.h5
-rw-r--r--bits/ipc.h46
-rw-r--r--bits/ipctypes.h36
-rw-r--r--bits/iscanonical.h28
-rw-r--r--bits/libc-header-start.h70
-rw-r--r--bits/libm-simd-decl-stubs.h65
-rw-r--r--bits/link.h1
-rw-r--r--bits/local_lim.h3
-rw-r--r--bits/long-double.h39
-rw-r--r--bits/math-vector.h27
-rw-r--r--bits/mathdef.h20
-rw-r--r--bits/mathinline.h12
-rw-r--r--bits/mman-linux.h114
-rw-r--r--bits/mman.h94
-rw-r--r--bits/mqueue.h30
-rw-r--r--bits/msq.h44
-rw-r--r--bits/nan.h5
-rw-r--r--bits/netdb.h32
-rw-r--r--bits/param.h33
-rw-r--r--bits/poll.h42
-rw-r--r--bits/posix_opt.h2
-rw-r--r--bits/pthreadtypes.h1
-rw-r--r--bits/resource.h191
-rw-r--r--bits/sched.h151
-rw-r--r--bits/select.h37
-rw-r--r--bits/sem.h60
-rw-r--r--bits/setjmp.h7
-rw-r--r--bits/shm.h56
-rw-r--r--bits/sigaction.h79
-rw-r--r--bits/sigcontext.h37
-rw-r--r--bits/sigevent-consts.h37
-rw-r--r--bits/siginfo-consts.h150
-rw-r--r--bits/signum.h84
-rw-r--r--bits/sigstack.h32
-rw-r--r--bits/sigthread.h34
-rw-r--r--bits/sockaddr.h42
-rw-r--r--bits/socket.h358
-rw-r--r--bits/ss_flags.h35
-rw-r--r--bits/stat.h103
-rw-r--r--bits/statfs.h69
-rw-r--r--bits/statvfs.h83
-rw-r--r--bits/stdint-intn.h29
-rw-r--r--bits/stdint-uintn.h29
-rw-r--r--bits/stdlib-bsearch.h43
-rw-r--r--bits/string.h18
-rw-r--r--bits/stropts.h230
-rw-r--r--bits/sys_errlist.h23
-rw-r--r--bits/syslog-path.h28
-rw-r--r--bits/sysmacros.h74
-rw-r--r--bits/termios.h343
-rw-r--r--bits/time.h64
-rw-r--r--bits/types/__sigset_t.h7
-rw-r--r--bits/types/sigevent_t.h17
-rw-r--r--bits/types/siginfo_t.h21
-rw-r--r--bits/types/stack_t.h33
-rw-r--r--bits/typesizes.h83
-rw-r--r--bits/uintn-identity.h50
-rw-r--r--bits/uio.h23
-rw-r--r--bits/ustat.h30
-rw-r--r--bits/utmp.h49
-rw-r--r--bits/utsname.h28
-rw-r--r--bits/waitflags.h26
-rw-r--r--bits/waitstatus.h59
-rw-r--r--bits/wchar.h49
-rw-r--r--bits/wordsize.h27
-rw-r--r--bits/xtitypes.h33
90 files changed, 0 insertions, 5656 deletions
diff --git a/bits/byteswap-16.h b/bits/byteswap-16.h
deleted file mode 100644
index cdf5728374..0000000000
--- a/bits/byteswap-16.h
+++ /dev/null
@@ -1,34 +0,0 @@
-/* Macros to swap the order of bytes in 16-bit integer values.
-   Copyright (C) 2012-2017 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 _BITS_BYTESWAP_H
-# error "Never use <bits/byteswap-16.h> directly; include <byteswap.h> instead."
-#endif
-
-#ifdef __GNUC__
-# define __bswap_16(x) \
-    (__extension__							      \
-     ({ unsigned short int __bsx = (unsigned short int) (x);		      \
-       __bswap_constant_16 (__bsx); }))
-#else
-static __inline unsigned short int
-__bswap_16 (unsigned short int __bsx)
-{
-  return __bswap_constant_16 (__bsx);
-}
-#endif
diff --git a/bits/byteswap.h b/bits/byteswap.h
deleted file mode 100644
index a9f903be82..0000000000
--- a/bits/byteswap.h
+++ /dev/null
@@ -1,112 +0,0 @@
-/* Macros to swap the order of bytes in integer values.
-   Copyright (C) 1997-2017 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/>.  */
-
-#if !defined _BYTESWAP_H && !defined _NETINET_IN_H && !defined _ENDIAN_H
-# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead."
-#endif
-
-#ifndef _BITS_BYTESWAP_H
-#define _BITS_BYTESWAP_H 1
-
-#include <features.h>
-#include <bits/types.h>
-
-/* Swap bytes in 16 bit value.  */
-#define __bswap_constant_16(x) \
-	((unsigned short int)((((x) >> 8) & 0xffu) | (((x) & 0xffu) << 8)))
-
-/* Get __bswap_16.  */
-#include <bits/byteswap-16.h>
-
-/* Swap bytes in 32 bit value.  */
-#define __bswap_constant_32(x) \
-     ((((x) & 0xff000000u) >> 24) | (((x) & 0x00ff0000u) >>  8) |	      \
-      (((x) & 0x0000ff00u) <<  8) | (((x) & 0x000000ffu) << 24))
-
-#ifdef __GNUC__
-# if __GNUC_PREREQ (4, 3)
-static __inline unsigned int
-__bswap_32 (unsigned int __bsx)
-{
-  return __builtin_bswap32 (__bsx);
-}
-# else
-#  define __bswap_32(x) \
-  (__extension__							      \
-   ({ unsigned int __bsx = (x); __bswap_constant_32 (__bsx); }))
-# endif
-#else
-static __inline unsigned int
-__bswap_32 (unsigned int __bsx)
-{
-  return __bswap_constant_32 (__bsx);
-}
-#endif
-
-/* Swap bytes in 64 bit value.  */
-#if __GNUC_PREREQ (2, 0)
-# define __bswap_constant_64(x) \
-     (__extension__ ((((x) & 0xff00000000000000ull) >> 56)		      \
-		     | (((x) & 0x00ff000000000000ull) >> 40)		      \
-		     | (((x) & 0x0000ff0000000000ull) >> 24)		      \
-		     | (((x) & 0x000000ff00000000ull) >> 8)		      \
-		     | (((x) & 0x00000000ff000000ull) << 8)		      \
-		     | (((x) & 0x0000000000ff0000ull) << 24)		      \
-		     | (((x) & 0x000000000000ff00ull) << 40)		      \
-		     | (((x) & 0x00000000000000ffull) << 56)))
-
-# if __GNUC_PREREQ (4, 3)
-static __inline __uint64_t
-__bswap_64 (__uint64_t __bsx)
-{
-  return __builtin_bswap64 (__bsx);
-}
-# else
-#  define __bswap_64(x) \
-     (__extension__							      \
-      ({ union { __extension__ __uint64_t __ll;				      \
-		 unsigned int __l[2]; } __w, __r;			      \
-	 if (__builtin_constant_p (x))					      \
-	   __r.__ll = __bswap_constant_64 (x);				      \
-	 else								      \
-	   {								      \
-	     __w.__ll = (x);						      \
-	     __r.__l[0] = __bswap_32 (__w.__l[1]);			      \
-	     __r.__l[1] = __bswap_32 (__w.__l[0]);			      \
-	   }								      \
-	 __r.__ll; }))
-# endif
-#else
-# define __bswap_constant_64(x) \
-     ((((x) & 0xff00000000000000ull) >> 56)				      \
-      | (((x) & 0x00ff000000000000ull) >> 40)				      \
-      | (((x) & 0x0000ff0000000000ull) >> 24)				      \
-      | (((x) & 0x000000ff00000000ull) >> 8)				      \
-      | (((x) & 0x00000000ff000000ull) << 8)				      \
-      | (((x) & 0x0000000000ff0000ull) << 24)				      \
-      | (((x) & 0x000000000000ff00ull) << 40)				      \
-      | (((x) & 0x00000000000000ffull) << 56))
-
-static __inline __uint64_t
-__bswap_64 (__uint64_t __bsx)
-{
-  return __bswap_constant_64 (__bsx);
-}
-#endif
-
-#endif /* _BITS_BYTESWAP_H */
diff --git a/bits/confname.h b/bits/confname.h
deleted file mode 100644
index 57157d8096..0000000000
--- a/bits/confname.h
+++ /dev/null
@@ -1,675 +0,0 @@
-/* `sysconf', `pathconf', and `confstr' NAME values.  Generic version.
-   Copyright (C) 1993-2017 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 _UNISTD_H
-# error "Never use <bits/confname.h> directly; include <unistd.h> instead."
-#endif
-
-/* Values for the NAME argument to `pathconf' and `fpathconf'.  */
-enum
-  {
-    _PC_LINK_MAX,
-#define	_PC_LINK_MAX			_PC_LINK_MAX
-    _PC_MAX_CANON,
-#define	_PC_MAX_CANON			_PC_MAX_CANON
-    _PC_MAX_INPUT,
-#define	_PC_MAX_INPUT			_PC_MAX_INPUT
-    _PC_NAME_MAX,
-#define	_PC_NAME_MAX			_PC_NAME_MAX
-    _PC_PATH_MAX,
-#define	_PC_PATH_MAX			_PC_PATH_MAX
-    _PC_PIPE_BUF,
-#define	_PC_PIPE_BUF			_PC_PIPE_BUF
-    _PC_CHOWN_RESTRICTED,
-#define	_PC_CHOWN_RESTRICTED		_PC_CHOWN_RESTRICTED
-    _PC_NO_TRUNC,
-#define	_PC_NO_TRUNC			_PC_NO_TRUNC
-    _PC_VDISABLE,
-#define _PC_VDISABLE			_PC_VDISABLE
-    _PC_SYNC_IO,
-#define	_PC_SYNC_IO			_PC_SYNC_IO
-    _PC_ASYNC_IO,
-#define	_PC_ASYNC_IO			_PC_ASYNC_IO
-    _PC_PRIO_IO,
-#define	_PC_PRIO_IO			_PC_PRIO_IO
-    _PC_SOCK_MAXBUF,
-#define	_PC_SOCK_MAXBUF			_PC_SOCK_MAXBUF
-    _PC_FILESIZEBITS,
-#define _PC_FILESIZEBITS		_PC_FILESIZEBITS
-    _PC_REC_INCR_XFER_SIZE,
-#define _PC_REC_INCR_XFER_SIZE		_PC_REC_INCR_XFER_SIZE
-    _PC_REC_MAX_XFER_SIZE,
-#define _PC_REC_MAX_XFER_SIZE		_PC_REC_MAX_XFER_SIZE
-    _PC_REC_MIN_XFER_SIZE,
-#define _PC_REC_MIN_XFER_SIZE		_PC_REC_MIN_XFER_SIZE
-    _PC_REC_XFER_ALIGN,
-#define _PC_REC_XFER_ALIGN		_PC_REC_XFER_ALIGN
-    _PC_ALLOC_SIZE_MIN,
-#define _PC_ALLOC_SIZE_MIN		_PC_ALLOC_SIZE_MIN
-    _PC_SYMLINK_MAX,
-#define _PC_SYMLINK_MAX			_PC_SYMLINK_MAX
-    _PC_2_SYMLINKS
-#define _PC_2_SYMLINKS			_PC_2_SYMLINKS
-  };
-
-/* Values for the argument to `sysconf'.  */
-enum
-  {
-    _SC_ARG_MAX,
-#define	_SC_ARG_MAX			_SC_ARG_MAX
-    _SC_CHILD_MAX,
-#define	_SC_CHILD_MAX			_SC_CHILD_MAX
-    _SC_CLK_TCK,
-#define	_SC_CLK_TCK			_SC_CLK_TCK
-    _SC_NGROUPS_MAX,
-#define	_SC_NGROUPS_MAX			_SC_NGROUPS_MAX
-    _SC_OPEN_MAX,
-#define	_SC_OPEN_MAX			_SC_OPEN_MAX
-    _SC_STREAM_MAX,
-#define	_SC_STREAM_MAX			_SC_STREAM_MAX
-    _SC_TZNAME_MAX,
-#define	_SC_TZNAME_MAX			_SC_TZNAME_MAX
-    _SC_JOB_CONTROL,
-#define	_SC_JOB_CONTROL			_SC_JOB_CONTROL
-    _SC_SAVED_IDS,
-#define	_SC_SAVED_IDS			_SC_SAVED_IDS
-    _SC_REALTIME_SIGNALS,
-#define	_SC_REALTIME_SIGNALS		_SC_REALTIME_SIGNALS
-    _SC_PRIORITY_SCHEDULING,
-#define	_SC_PRIORITY_SCHEDULING		_SC_PRIORITY_SCHEDULING
-    _SC_TIMERS,
-#define	_SC_TIMERS			_SC_TIMERS
-    _SC_ASYNCHRONOUS_IO,
-#define	_SC_ASYNCHRONOUS_IO		_SC_ASYNCHRONOUS_IO
-    _SC_PRIORITIZED_IO,
-#define	_SC_PRIORITIZED_IO		_SC_PRIORITIZED_IO
-    _SC_SYNCHRONIZED_IO,
-#define	_SC_SYNCHRONIZED_IO		_SC_SYNCHRONIZED_IO
-    _SC_FSYNC,
-#define	_SC_FSYNC			_SC_FSYNC
-    _SC_MAPPED_FILES,
-#define	_SC_MAPPED_FILES		_SC_MAPPED_FILES
-    _SC_MEMLOCK,
-#define	_SC_MEMLOCK			_SC_MEMLOCK
-    _SC_MEMLOCK_RANGE,
-#define	_SC_MEMLOCK_RANGE		_SC_MEMLOCK_RANGE
-    _SC_MEMORY_PROTECTION,
-#define	_SC_MEMORY_PROTECTION		_SC_MEMORY_PROTECTION
-    _SC_MESSAGE_PASSING,
-#define	_SC_MESSAGE_PASSING		_SC_MESSAGE_PASSING
-    _SC_SEMAPHORES,
-#define	_SC_SEMAPHORES			_SC_SEMAPHORES
-    _SC_SHARED_MEMORY_OBJECTS,
-#define	_SC_SHARED_MEMORY_OBJECTS	_SC_SHARED_MEMORY_OBJECTS
-    _SC_AIO_LISTIO_MAX,
-#define	_SC_AIO_LISTIO_MAX		_SC_AIO_LISTIO_MAX
-    _SC_AIO_MAX,
-#define	_SC_AIO_MAX			_SC_AIO_MAX
-    _SC_AIO_PRIO_DELTA_MAX,
-#define	_SC_AIO_PRIO_DELTA_MAX		_SC_AIO_PRIO_DELTA_MAX
-    _SC_DELAYTIMER_MAX,
-#define	_SC_DELAYTIMER_MAX		_SC_DELAYTIMER_MAX
-    _SC_MQ_OPEN_MAX,
-#define	_SC_MQ_OPEN_MAX			_SC_MQ_OPEN_MAX
-    _SC_MQ_PRIO_MAX,
-#define	_SC_MQ_PRIO_MAX			_SC_MQ_PRIO_MAX
-    _SC_VERSION,
-#define	_SC_VERSION			_SC_VERSION
-    _SC_PAGESIZE,
-#define	_SC_PAGESIZE			_SC_PAGESIZE
-#define	_SC_PAGE_SIZE			_SC_PAGESIZE
-    _SC_RTSIG_MAX,
-#define	_SC_RTSIG_MAX			_SC_RTSIG_MAX
-    _SC_SEM_NSEMS_MAX,
-#define	_SC_SEM_NSEMS_MAX		_SC_SEM_NSEMS_MAX
-    _SC_SEM_VALUE_MAX,
-#define	_SC_SEM_VALUE_MAX		_SC_SEM_VALUE_MAX
-    _SC_SIGQUEUE_MAX,
-#define	_SC_SIGQUEUE_MAX		_SC_SIGQUEUE_MAX
-    _SC_TIMER_MAX,
-#define	_SC_TIMER_MAX			_SC_TIMER_MAX
-
-    /* Values for the argument to `sysconf'
-       corresponding to _POSIX2_* symbols.  */
-    _SC_BC_BASE_MAX,
-#define	_SC_BC_BASE_MAX			_SC_BC_BASE_MAX
-    _SC_BC_DIM_MAX,
-#define	_SC_BC_DIM_MAX			_SC_BC_DIM_MAX
-    _SC_BC_SCALE_MAX,
-#define	_SC_BC_SCALE_MAX		_SC_BC_SCALE_MAX
-    _SC_BC_STRING_MAX,
-#define	_SC_BC_STRING_MAX		_SC_BC_STRING_MAX
-    _SC_COLL_WEIGHTS_MAX,
-#define	_SC_COLL_WEIGHTS_MAX		_SC_COLL_WEIGHTS_MAX
-    _SC_EQUIV_CLASS_MAX,
-#define	_SC_EQUIV_CLASS_MAX		_SC_EQUIV_CLASS_MAX
-    _SC_EXPR_NEST_MAX,
-#define	_SC_EXPR_NEST_MAX		_SC_EXPR_NEST_MAX
-    _SC_LINE_MAX,
-#define	_SC_LINE_MAX			_SC_LINE_MAX
-    _SC_RE_DUP_MAX,
-#define	_SC_RE_DUP_MAX			_SC_RE_DUP_MAX
-    _SC_CHARCLASS_NAME_MAX,
-#define	_SC_CHARCLASS_NAME_MAX		_SC_CHARCLASS_NAME_MAX
-
-    _SC_2_VERSION,
-#define	_SC_2_VERSION			_SC_2_VERSION
-    _SC_2_C_BIND,
-#define	_SC_2_C_BIND			_SC_2_C_BIND
-    _SC_2_C_DEV,
-#define	_SC_2_C_DEV			_SC_2_C_DEV
-    _SC_2_FORT_DEV,
-#define	_SC_2_FORT_DEV			_SC_2_FORT_DEV
-    _SC_2_FORT_RUN,
-#define	_SC_2_FORT_RUN			_SC_2_FORT_RUN
-    _SC_2_SW_DEV,
-#define	_SC_2_SW_DEV			_SC_2_SW_DEV
-    _SC_2_LOCALEDEF,
-#define	_SC_2_LOCALEDEF			_SC_2_LOCALEDEF
-
-    _SC_PII,
-#define	_SC_PII				_SC_PII
-    _SC_PII_XTI,
-#define	_SC_PII_XTI			_SC_PII_XTI
-    _SC_PII_SOCKET,
-#define	_SC_PII_SOCKET			_SC_PII_SOCKET
-    _SC_PII_INTERNET,
-#define	_SC_PII_INTERNET		_SC_PII_INTERNET
-    _SC_PII_OSI,
-#define	_SC_PII_OSI			_SC_PII_OSI
-    _SC_POLL,
-#define	_SC_POLL			_SC_POLL
-    _SC_SELECT,
-#define	_SC_SELECT			_SC_SELECT
-    _SC_UIO_MAXIOV,
-#define	_SC_UIO_MAXIOV			_SC_UIO_MAXIOV
-    _SC_IOV_MAX = _SC_UIO_MAXIOV,
-#define _SC_IOV_MAX			_SC_IOV_MAX
-    _SC_PII_INTERNET_STREAM,
-#define	_SC_PII_INTERNET_STREAM		_SC_PII_INTERNET_STREAM
-    _SC_PII_INTERNET_DGRAM,
-#define	_SC_PII_INTERNET_DGRAM		_SC_PII_INTERNET_DGRAM
-    _SC_PII_OSI_COTS,
-#define	_SC_PII_OSI_COTS		_SC_PII_OSI_COTS
-    _SC_PII_OSI_CLTS,
-#define	_SC_PII_OSI_CLTS		_SC_PII_OSI_CLTS
-    _SC_PII_OSI_M,
-#define	_SC_PII_OSI_M			_SC_PII_OSI_M
-    _SC_T_IOV_MAX,
-#define	_SC_T_IOV_MAX			_SC_T_IOV_MAX
-
-    /* Values according to POSIX 1003.1c (POSIX threads).  */
-    _SC_THREADS,
-#define	_SC_THREADS			_SC_THREADS
-    _SC_THREAD_SAFE_FUNCTIONS,
-#define _SC_THREAD_SAFE_FUNCTIONS	_SC_THREAD_SAFE_FUNCTIONS
-    _SC_GETGR_R_SIZE_MAX,
-#define	_SC_GETGR_R_SIZE_MAX		_SC_GETGR_R_SIZE_MAX
-    _SC_GETPW_R_SIZE_MAX,
-#define	_SC_GETPW_R_SIZE_MAX		_SC_GETPW_R_SIZE_MAX
-    _SC_LOGIN_NAME_MAX,
-#define	_SC_LOGIN_NAME_MAX		_SC_LOGIN_NAME_MAX
-    _SC_TTY_NAME_MAX,
-#define	_SC_TTY_NAME_MAX		_SC_TTY_NAME_MAX
-    _SC_THREAD_DESTRUCTOR_ITERATIONS,
-#define	_SC_THREAD_DESTRUCTOR_ITERATIONS _SC_THREAD_DESTRUCTOR_ITERATIONS
-    _SC_THREAD_KEYS_MAX,
-#define	_SC_THREAD_KEYS_MAX		_SC_THREAD_KEYS_MAX
-    _SC_THREAD_STACK_MIN,
-#define	_SC_THREAD_STACK_MIN		_SC_THREAD_STACK_MIN
-    _SC_THREAD_THREADS_MAX,
-#define	_SC_THREAD_THREADS_MAX		_SC_THREAD_THREADS_MAX
-    _SC_THREAD_ATTR_STACKADDR,
-#define	_SC_THREAD_ATTR_STACKADDR	_SC_THREAD_ATTR_STACKADDR
-    _SC_THREAD_ATTR_STACKSIZE,
-#define	_SC_THREAD_ATTR_STACKSIZE	_SC_THREAD_ATTR_STACKSIZE
-    _SC_THREAD_PRIORITY_SCHEDULING,
-#define	_SC_THREAD_PRIORITY_SCHEDULING	_SC_THREAD_PRIORITY_SCHEDULING
-    _SC_THREAD_PRIO_INHERIT,
-#define	_SC_THREAD_PRIO_INHERIT		_SC_THREAD_PRIO_INHERIT
-    _SC_THREAD_PRIO_PROTECT,
-#define	_SC_THREAD_PRIO_PROTECT		_SC_THREAD_PRIO_PROTECT
-    _SC_THREAD_PROCESS_SHARED,
-#define	_SC_THREAD_PROCESS_SHARED	_SC_THREAD_PROCESS_SHARED
-
-    _SC_NPROCESSORS_CONF,
-#define _SC_NPROCESSORS_CONF		_SC_NPROCESSORS_CONF
-    _SC_NPROCESSORS_ONLN,
-#define _SC_NPROCESSORS_ONLN		_SC_NPROCESSORS_ONLN
-    _SC_PHYS_PAGES,
-#define _SC_PHYS_PAGES			_SC_PHYS_PAGES
-    _SC_AVPHYS_PAGES,
-#define _SC_AVPHYS_PAGES		_SC_AVPHYS_PAGES
-    _SC_ATEXIT_MAX,
-#define _SC_ATEXIT_MAX			_SC_ATEXIT_MAX
-    _SC_PASS_MAX,
-#define _SC_PASS_MAX			_SC_PASS_MAX
-
-    _SC_XOPEN_VERSION,
-#define _SC_XOPEN_VERSION		_SC_XOPEN_VERSION
-    _SC_XOPEN_XCU_VERSION,
-#define _SC_XOPEN_XCU_VERSION		_SC_XOPEN_XCU_VERSION
-    _SC_XOPEN_UNIX,
-#define _SC_XOPEN_UNIX			_SC_XOPEN_UNIX
-    _SC_XOPEN_CRYPT,
-#define _SC_XOPEN_CRYPT			_SC_XOPEN_CRYPT
-    _SC_XOPEN_ENH_I18N,
-#define _SC_XOPEN_ENH_I18N		_SC_XOPEN_ENH_I18N
-    _SC_XOPEN_SHM,
-#define _SC_XOPEN_SHM			_SC_XOPEN_SHM
-
-    _SC_2_CHAR_TERM,
-#define _SC_2_CHAR_TERM			_SC_2_CHAR_TERM
-    _SC_2_C_VERSION,
-#define _SC_2_C_VERSION			_SC_2_C_VERSION
-    _SC_2_UPE,
-#define _SC_2_UPE			_SC_2_UPE
-
-    _SC_XOPEN_XPG2,
-#define _SC_XOPEN_XPG2			_SC_XOPEN_XPG2
-    _SC_XOPEN_XPG3,
-#define _SC_XOPEN_XPG3			_SC_XOPEN_XPG3
-    _SC_XOPEN_XPG4,
-#define _SC_XOPEN_XPG4			_SC_XOPEN_XPG4
-
-    _SC_CHAR_BIT,
-#define	_SC_CHAR_BIT			_SC_CHAR_BIT
-    _SC_CHAR_MAX,
-#define	_SC_CHAR_MAX			_SC_CHAR_MAX
-    _SC_CHAR_MIN,
-#define	_SC_CHAR_MIN			_SC_CHAR_MIN
-    _SC_INT_MAX,
-#define	_SC_INT_MAX			_SC_INT_MAX
-    _SC_INT_MIN,
-#define	_SC_INT_MIN			_SC_INT_MIN
-    _SC_LONG_BIT,
-#define	_SC_LONG_BIT			_SC_LONG_BIT
-    _SC_WORD_BIT,
-#define	_SC_WORD_BIT			_SC_WORD_BIT
-    _SC_MB_LEN_MAX,
-#define	_SC_MB_LEN_MAX			_SC_MB_LEN_MAX
-    _SC_NZERO,
-#define	_SC_NZERO			_SC_NZERO
-    _SC_SSIZE_MAX,
-#define	_SC_SSIZE_MAX			_SC_SSIZE_MAX
-    _SC_SCHAR_MAX,
-#define	_SC_SCHAR_MAX			_SC_SCHAR_MAX
-    _SC_SCHAR_MIN,
-#define	_SC_SCHAR_MIN			_SC_SCHAR_MIN
-    _SC_SHRT_MAX,
-#define	_SC_SHRT_MAX			_SC_SHRT_MAX
-    _SC_SHRT_MIN,
-#define	_SC_SHRT_MIN			_SC_SHRT_MIN
-    _SC_UCHAR_MAX,
-#define	_SC_UCHAR_MAX			_SC_UCHAR_MAX
-    _SC_UINT_MAX,
-#define	_SC_UINT_MAX			_SC_UINT_MAX
-    _SC_ULONG_MAX,
-#define	_SC_ULONG_MAX			_SC_ULONG_MAX
-    _SC_USHRT_MAX,
-#define	_SC_USHRT_MAX			_SC_USHRT_MAX
-
-    _SC_NL_ARGMAX,
-#define	_SC_NL_ARGMAX			_SC_NL_ARGMAX
-    _SC_NL_LANGMAX,
-#define	_SC_NL_LANGMAX			_SC_NL_LANGMAX
-    _SC_NL_MSGMAX,
-#define	_SC_NL_MSGMAX			_SC_NL_MSGMAX
-    _SC_NL_NMAX,
-#define	_SC_NL_NMAX			_SC_NL_NMAX
-    _SC_NL_SETMAX,
-#define	_SC_NL_SETMAX			_SC_NL_SETMAX
-    _SC_NL_TEXTMAX,
-#define	_SC_NL_TEXTMAX			_SC_NL_TEXTMAX
-
-    _SC_XBS5_ILP32_OFF32,
-#define _SC_XBS5_ILP32_OFF32		_SC_XBS5_ILP32_OFF32
-    _SC_XBS5_ILP32_OFFBIG,
-#define _SC_XBS5_ILP32_OFFBIG		_SC_XBS5_ILP32_OFFBIG
-    _SC_XBS5_LP64_OFF64,
-#define _SC_XBS5_LP64_OFF64		_SC_XBS5_LP64_OFF64
-    _SC_XBS5_LPBIG_OFFBIG,
-#define _SC_XBS5_LPBIG_OFFBIG		_SC_XBS5_LPBIG_OFFBIG
-
-    _SC_XOPEN_LEGACY,
-#define _SC_XOPEN_LEGACY		_SC_XOPEN_LEGACY
-    _SC_XOPEN_REALTIME,
-#define _SC_XOPEN_REALTIME		_SC_XOPEN_REALTIME
-    _SC_XOPEN_REALTIME_THREADS,
-#define _SC_XOPEN_REALTIME_THREADS	_SC_XOPEN_REALTIME_THREADS
-
-    _SC_ADVISORY_INFO,
-#define _SC_ADVISORY_INFO		_SC_ADVISORY_INFO
-    _SC_BARRIERS,
-#define _SC_BARRIERS			_SC_BARRIERS
-    _SC_BASE,
-#define _SC_BASE			_SC_BASE
-    _SC_C_LANG_SUPPORT,
-#define _SC_C_LANG_SUPPORT		_SC_C_LANG_SUPPORT
-    _SC_C_LANG_SUPPORT_R,
-#define _SC_C_LANG_SUPPORT_R		_SC_C_LANG_SUPPORT_R
-    _SC_CLOCK_SELECTION,
-#define _SC_CLOCK_SELECTION		_SC_CLOCK_SELECTION
-    _SC_CPUTIME,
-#define _SC_CPUTIME			_SC_CPUTIME
-    _SC_THREAD_CPUTIME,
-#define _SC_THREAD_CPUTIME		_SC_THREAD_CPUTIME
-    _SC_DEVICE_IO,
-#define _SC_DEVICE_IO			_SC_DEVICE_IO
-    _SC_DEVICE_SPECIFIC,
-#define _SC_DEVICE_SPECIFIC		_SC_DEVICE_SPECIFIC
-    _SC_DEVICE_SPECIFIC_R,
-#define _SC_DEVICE_SPECIFIC_R		_SC_DEVICE_SPECIFIC_R
-    _SC_FD_MGMT,
-#define _SC_FD_MGMT			_SC_FD_MGMT
-    _SC_FIFO,
-#define _SC_FIFO			_SC_FIFO
-    _SC_PIPE,
-#define _SC_PIPE			_SC_PIPE
-    _SC_FILE_ATTRIBUTES,
-#define _SC_FILE_ATTRIBUTES		_SC_FILE_ATTRIBUTES
-    _SC_FILE_LOCKING,
-#define _SC_FILE_LOCKING		_SC_FILE_LOCKING
-    _SC_FILE_SYSTEM,
-#define _SC_FILE_SYSTEM			_SC_FILE_SYSTEM
-    _SC_MONOTONIC_CLOCK,
-#define _SC_MONOTONIC_CLOCK		_SC_MONOTONIC_CLOCK
-    _SC_MULTI_PROCESS,
-#define _SC_MULTI_PROCESS		_SC_MULTI_PROCESS
-    _SC_SINGLE_PROCESS,
-#define _SC_SINGLE_PROCESS		_SC_SINGLE_PROCESS
-    _SC_NETWORKING,
-#define _SC_NETWORKING			_SC_NETWORKING
-    _SC_READER_WRITER_LOCKS,
-#define _SC_READER_WRITER_LOCKS		_SC_READER_WRITER_LOCKS
-    _SC_SPIN_LOCKS,
-#define _SC_SPIN_LOCKS			_SC_SPIN_LOCKS
-    _SC_REGEXP,
-#define _SC_REGEXP			_SC_REGEXP
-    _SC_REGEX_VERSION,
-#define _SC_REGEX_VERSION		_SC_REGEX_VERSION
-    _SC_SHELL,
-#define _SC_SHELL			_SC_SHELL
-    _SC_SIGNALS,
-#define _SC_SIGNALS			_SC_SIGNALS
-    _SC_SPAWN,
-#define _SC_SPAWN			_SC_SPAWN
-    _SC_SPORADIC_SERVER,
-#define _SC_SPORADIC_SERVER		_SC_SPORADIC_SERVER
-    _SC_THREAD_SPORADIC_SERVER,
-#define _SC_THREAD_SPORADIC_SERVER	_SC_THREAD_SPORADIC_SERVER
-    _SC_SYSTEM_DATABASE,
-#define _SC_SYSTEM_DATABASE		_SC_SYSTEM_DATABASE
-    _SC_SYSTEM_DATABASE_R,
-#define _SC_SYSTEM_DATABASE_R		_SC_SYSTEM_DATABASE_R
-    _SC_TIMEOUTS,
-#define _SC_TIMEOUTS			_SC_TIMEOUTS
-    _SC_TYPED_MEMORY_OBJECTS,
-#define _SC_TYPED_MEMORY_OBJECTS	_SC_TYPED_MEMORY_OBJECTS
-    _SC_USER_GROUPS,
-#define _SC_USER_GROUPS			_SC_USER_GROUPS
-    _SC_USER_GROUPS_R,
-#define _SC_USER_GROUPS_R		_SC_USER_GROUPS_R
-    _SC_2_PBS,
-#define _SC_2_PBS			_SC_2_PBS
-    _SC_2_PBS_ACCOUNTING,
-#define _SC_2_PBS_ACCOUNTING		_SC_2_PBS_ACCOUNTING
-    _SC_2_PBS_LOCATE,
-#define _SC_2_PBS_LOCATE		_SC_2_PBS_LOCATE
-    _SC_2_PBS_MESSAGE,
-#define _SC_2_PBS_MESSAGE		_SC_2_PBS_MESSAGE
-    _SC_2_PBS_TRACK,
-#define _SC_2_PBS_TRACK			_SC_2_PBS_TRACK
-    _SC_SYMLOOP_MAX,
-#define _SC_SYMLOOP_MAX			_SC_SYMLOOP_MAX
-    _SC_STREAMS,
-#define _SC_STREAMS			_SC_STREAMS
-    _SC_2_PBS_CHECKPOINT,
-#define _SC_2_PBS_CHECKPOINT		_SC_2_PBS_CHECKPOINT
-
-    _SC_V6_ILP32_OFF32,
-#define _SC_V6_ILP32_OFF32		_SC_V6_ILP32_OFF32
-    _SC_V6_ILP32_OFFBIG,
-#define _SC_V6_ILP32_OFFBIG		_SC_V6_ILP32_OFFBIG
-    _SC_V6_LP64_OFF64,
-#define _SC_V6_LP64_OFF64		_SC_V6_LP64_OFF64
-    _SC_V6_LPBIG_OFFBIG,
-#define _SC_V6_LPBIG_OFFBIG		_SC_V6_LPBIG_OFFBIG
-
-    _SC_HOST_NAME_MAX,
-#define _SC_HOST_NAME_MAX		_SC_HOST_NAME_MAX
-    _SC_TRACE,
-#define _SC_TRACE			_SC_TRACE
-    _SC_TRACE_EVENT_FILTER,
-#define _SC_TRACE_EVENT_FILTER		_SC_TRACE_EVENT_FILTER
-    _SC_TRACE_INHERIT,
-#define _SC_TRACE_INHERIT		_SC_TRACE_INHERIT
-    _SC_TRACE_LOG,
-#define _SC_TRACE_LOG			_SC_TRACE_LOG
-
-    _SC_LEVEL1_ICACHE_SIZE,
-#define _SC_LEVEL1_ICACHE_SIZE		_SC_LEVEL1_ICACHE_SIZE
-    _SC_LEVEL1_ICACHE_ASSOC,
-#define _SC_LEVEL1_ICACHE_ASSOC		_SC_LEVEL1_ICACHE_ASSOC
-    _SC_LEVEL1_ICACHE_LINESIZE,
-#define _SC_LEVEL1_ICACHE_LINESIZE	_SC_LEVEL1_ICACHE_LINESIZE
-    _SC_LEVEL1_DCACHE_SIZE,
-#define _SC_LEVEL1_DCACHE_SIZE		_SC_LEVEL1_DCACHE_SIZE
-    _SC_LEVEL1_DCACHE_ASSOC,
-#define _SC_LEVEL1_DCACHE_ASSOC		_SC_LEVEL1_DCACHE_ASSOC
-    _SC_LEVEL1_DCACHE_LINESIZE,
-#define _SC_LEVEL1_DCACHE_LINESIZE	_SC_LEVEL1_DCACHE_LINESIZE
-    _SC_LEVEL2_CACHE_SIZE,
-#define _SC_LEVEL2_CACHE_SIZE		_SC_LEVEL2_CACHE_SIZE
-    _SC_LEVEL2_CACHE_ASSOC,
-#define _SC_LEVEL2_CACHE_ASSOC		_SC_LEVEL2_CACHE_ASSOC
-    _SC_LEVEL2_CACHE_LINESIZE,
-#define _SC_LEVEL2_CACHE_LINESIZE	_SC_LEVEL2_CACHE_LINESIZE
-    _SC_LEVEL3_CACHE_SIZE,
-#define _SC_LEVEL3_CACHE_SIZE		_SC_LEVEL3_CACHE_SIZE
-    _SC_LEVEL3_CACHE_ASSOC,
-#define _SC_LEVEL3_CACHE_ASSOC		_SC_LEVEL3_CACHE_ASSOC
-    _SC_LEVEL3_CACHE_LINESIZE,
-#define _SC_LEVEL3_CACHE_LINESIZE	_SC_LEVEL3_CACHE_LINESIZE
-    _SC_LEVEL4_CACHE_SIZE,
-#define _SC_LEVEL4_CACHE_SIZE		_SC_LEVEL4_CACHE_SIZE
-    _SC_LEVEL4_CACHE_ASSOC,
-#define _SC_LEVEL4_CACHE_ASSOC		_SC_LEVEL4_CACHE_ASSOC
-    _SC_LEVEL4_CACHE_LINESIZE,
-#define _SC_LEVEL4_CACHE_LINESIZE	_SC_LEVEL4_CACHE_LINESIZE
-    /* Leave room here, maybe we need a few more cache levels some day.  */
-
-    _SC_IPV6 = _SC_LEVEL1_ICACHE_SIZE + 50,
-#define _SC_IPV6			_SC_IPV6
-    _SC_RAW_SOCKETS,
-#define _SC_RAW_SOCKETS			_SC_RAW_SOCKETS
-
-    _SC_V7_ILP32_OFF32,
-#define _SC_V7_ILP32_OFF32		_SC_V7_ILP32_OFF32
-    _SC_V7_ILP32_OFFBIG,
-#define _SC_V7_ILP32_OFFBIG		_SC_V7_ILP32_OFFBIG
-    _SC_V7_LP64_OFF64,
-#define _SC_V7_LP64_OFF64		_SC_V7_LP64_OFF64
-    _SC_V7_LPBIG_OFFBIG,
-#define _SC_V7_LPBIG_OFFBIG		_SC_V7_LPBIG_OFFBIG
-
-    _SC_SS_REPL_MAX,
-#define _SC_SS_REPL_MAX			_SC_SS_REPL_MAX
-
-    _SC_TRACE_EVENT_NAME_MAX,
-#define _SC_TRACE_EVENT_NAME_MAX	_SC_TRACE_EVENT_NAME_MAX
-    _SC_TRACE_NAME_MAX,
-#define _SC_TRACE_NAME_MAX		_SC_TRACE_NAME_MAX
-    _SC_TRACE_SYS_MAX,
-#define _SC_TRACE_SYS_MAX		_SC_TRACE_SYS_MAX
-    _SC_TRACE_USER_EVENT_MAX,
-#define _SC_TRACE_USER_EVENT_MAX	_SC_TRACE_USER_EVENT_MAX
-
-    _SC_XOPEN_STREAMS,
-#define _SC_XOPEN_STREAMS		_SC_XOPEN_STREAMS
-
-    _SC_THREAD_ROBUST_PRIO_INHERIT,
-#define _SC_THREAD_ROBUST_PRIO_INHERIT	_SC_THREAD_ROBUST_PRIO_INHERIT
-    _SC_THREAD_ROBUST_PRIO_PROTECT
-#define _SC_THREAD_ROBUST_PRIO_PROTECT	_SC_THREAD_ROBUST_PRIO_PROTECT
-  };
-
-/* Values for the NAME argument to `confstr'.  */
-enum
-  {
-    _CS_PATH,			/* The default search path.  */
-#define _CS_PATH		_CS_PATH
-
-    _CS_V6_WIDTH_RESTRICTED_ENVS,
-#define _CS_V6_WIDTH_RESTRICTED_ENVS	_CS_V6_WIDTH_RESTRICTED_ENVS
-#define _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS	_CS_V6_WIDTH_RESTRICTED_ENVS
-
-    _CS_GNU_LIBC_VERSION,
-#define _CS_GNU_LIBC_VERSION	_CS_GNU_LIBC_VERSION
-    _CS_GNU_LIBPTHREAD_VERSION,
-#define _CS_GNU_LIBPTHREAD_VERSION	_CS_GNU_LIBPTHREAD_VERSION
-
-    _CS_V5_WIDTH_RESTRICTED_ENVS,
-#define _CS_V5_WIDTH_RESTRICTED_ENVS	_CS_V5_WIDTH_RESTRICTED_ENVS
-#define _CS_POSIX_V5_WIDTH_RESTRICTED_ENVS	_CS_V5_WIDTH_RESTRICTED_ENVS
-
-    _CS_V7_WIDTH_RESTRICTED_ENVS,
-#define _CS_V7_WIDTH_RESTRICTED_ENVS	_CS_V7_WIDTH_RESTRICTED_ENVS
-#define _CS_POSIX_V7_WIDTH_RESTRICTED_ENVS	_CS_V7_WIDTH_RESTRICTED_ENVS
-
-    _CS_LFS_CFLAGS = 1000,
-#define _CS_LFS_CFLAGS	_CS_LFS_CFLAGS
-    _CS_LFS_LDFLAGS,
-#define _CS_LFS_LDFLAGS	_CS_LFS_LDFLAGS
-    _CS_LFS_LIBS,
-#define _CS_LFS_LIBS		_CS_LFS_LIBS
-    _CS_LFS_LINTFLAGS,
-#define _CS_LFS_LINTFLAGS	_CS_LFS_LINTFLAGS
-    _CS_LFS64_CFLAGS,
-#define _CS_LFS64_CFLAGS	_CS_LFS64_CFLAGS
-    _CS_LFS64_LDFLAGS,
-#define _CS_LFS64_LDFLAGS	_CS_LFS64_LDFLAGS
-    _CS_LFS64_LIBS,
-#define _CS_LFS64_LIBS	_CS_LFS64_LIBS
-    _CS_LFS64_LINTFLAGS,
-#define _CS_LFS64_LINTFLAGS	_CS_LFS64_LINTFLAGS
-
-    _CS_XBS5_ILP32_OFF32_CFLAGS = 1100,
-#define _CS_XBS5_ILP32_OFF32_CFLAGS _CS_XBS5_ILP32_OFF32_CFLAGS
-    _CS_XBS5_ILP32_OFF32_LDFLAGS,
-#define _CS_XBS5_ILP32_OFF32_LDFLAGS _CS_XBS5_ILP32_OFF32_LDFLAGS
-    _CS_XBS5_ILP32_OFF32_LIBS,
-#define _CS_XBS5_ILP32_OFF32_LIBS _CS_XBS5_ILP32_OFF32_LIBS
-    _CS_XBS5_ILP32_OFF32_LINTFLAGS,
-#define _CS_XBS5_ILP32_OFF32_LINTFLAGS _CS_XBS5_ILP32_OFF32_LINTFLAGS
-    _CS_XBS5_ILP32_OFFBIG_CFLAGS,
-#define _CS_XBS5_ILP32_OFFBIG_CFLAGS _CS_XBS5_ILP32_OFFBIG_CFLAGS
-    _CS_XBS5_ILP32_OFFBIG_LDFLAGS,
-#define _CS_XBS5_ILP32_OFFBIG_LDFLAGS _CS_XBS5_ILP32_OFFBIG_LDFLAGS
-    _CS_XBS5_ILP32_OFFBIG_LIBS,
-#define _CS_XBS5_ILP32_OFFBIG_LIBS _CS_XBS5_ILP32_OFFBIG_LIBS
-    _CS_XBS5_ILP32_OFFBIG_LINTFLAGS,
-#define _CS_XBS5_ILP32_OFFBIG_LINTFLAGS _CS_XBS5_ILP32_OFFBIG_LINTFLAGS
-    _CS_XBS5_LP64_OFF64_CFLAGS,
-#define _CS_XBS5_LP64_OFF64_CFLAGS _CS_XBS5_LP64_OFF64_CFLAGS
-    _CS_XBS5_LP64_OFF64_LDFLAGS,
-#define _CS_XBS5_LP64_OFF64_LDFLAGS _CS_XBS5_LP64_OFF64_LDFLAGS
-    _CS_XBS5_LP64_OFF64_LIBS,
-#define _CS_XBS5_LP64_OFF64_LIBS _CS_XBS5_LP64_OFF64_LIBS
-    _CS_XBS5_LP64_OFF64_LINTFLAGS,
-#define _CS_XBS5_LP64_OFF64_LINTFLAGS _CS_XBS5_LP64_OFF64_LINTFLAGS
-    _CS_XBS5_LPBIG_OFFBIG_CFLAGS,
-#define _CS_XBS5_LPBIG_OFFBIG_CFLAGS _CS_XBS5_LPBIG_OFFBIG_CFLAGS
-    _CS_XBS5_LPBIG_OFFBIG_LDFLAGS,
-#define _CS_XBS5_LPBIG_OFFBIG_LDFLAGS _CS_XBS5_LPBIG_OFFBIG_LDFLAGS
-    _CS_XBS5_LPBIG_OFFBIG_LIBS,
-#define _CS_XBS5_LPBIG_OFFBIG_LIBS _CS_XBS5_LPBIG_OFFBIG_LIBS
-    _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS,
-#define _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS
-
-    _CS_POSIX_V6_ILP32_OFF32_CFLAGS,
-#define _CS_POSIX_V6_ILP32_OFF32_CFLAGS _CS_POSIX_V6_ILP32_OFF32_CFLAGS
-    _CS_POSIX_V6_ILP32_OFF32_LDFLAGS,
-#define _CS_POSIX_V6_ILP32_OFF32_LDFLAGS _CS_POSIX_V6_ILP32_OFF32_LDFLAGS
-    _CS_POSIX_V6_ILP32_OFF32_LIBS,
-#define _CS_POSIX_V6_ILP32_OFF32_LIBS _CS_POSIX_V6_ILP32_OFF32_LIBS
-    _CS_POSIX_V6_ILP32_OFF32_LINTFLAGS,
-#define _CS_POSIX_V6_ILP32_OFF32_LINTFLAGS _CS_POSIX_V6_ILP32_OFF32_LINTFLAGS
-    _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS,
-#define _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS
-    _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS,
-#define _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS
-    _CS_POSIX_V6_ILP32_OFFBIG_LIBS,
-#define _CS_POSIX_V6_ILP32_OFFBIG_LIBS _CS_POSIX_V6_ILP32_OFFBIG_LIBS
-    _CS_POSIX_V6_ILP32_OFFBIG_LINTFLAGS,
-#define _CS_POSIX_V6_ILP32_OFFBIG_LINTFLAGS _CS_POSIX_V6_ILP32_OFFBIG_LINTFLAGS
-    _CS_POSIX_V6_LP64_OFF64_CFLAGS,
-#define _CS_POSIX_V6_LP64_OFF64_CFLAGS _CS_POSIX_V6_LP64_OFF64_CFLAGS
-    _CS_POSIX_V6_LP64_OFF64_LDFLAGS,
-#define _CS_POSIX_V6_LP64_OFF64_LDFLAGS _CS_POSIX_V6_LP64_OFF64_LDFLAGS
-    _CS_POSIX_V6_LP64_OFF64_LIBS,
-#define _CS_POSIX_V6_LP64_OFF64_LIBS _CS_POSIX_V6_LP64_OFF64_LIBS
-    _CS_POSIX_V6_LP64_OFF64_LINTFLAGS,
-#define _CS_POSIX_V6_LP64_OFF64_LINTFLAGS _CS_POSIX_V6_LP64_OFF64_LINTFLAGS
-    _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS,
-#define _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS
-    _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS,
-#define _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS
-    _CS_POSIX_V6_LPBIG_OFFBIG_LIBS,
-#define _CS_POSIX_V6_LPBIG_OFFBIG_LIBS _CS_POSIX_V6_LPBIG_OFFBIG_LIBS
-    _CS_POSIX_V6_LPBIG_OFFBIG_LINTFLAGS,
-#define _CS_POSIX_V6_LPBIG_OFFBIG_LINTFLAGS _CS_POSIX_V6_LPBIG_OFFBIG_LINTFLAGS
-
-    _CS_POSIX_V7_ILP32_OFF32_CFLAGS,
-#define _CS_POSIX_V7_ILP32_OFF32_CFLAGS _CS_POSIX_V7_ILP32_OFF32_CFLAGS
-    _CS_POSIX_V7_ILP32_OFF32_LDFLAGS,
-#define _CS_POSIX_V7_ILP32_OFF32_LDFLAGS _CS_POSIX_V7_ILP32_OFF32_LDFLAGS
-    _CS_POSIX_V7_ILP32_OFF32_LIBS,
-#define _CS_POSIX_V7_ILP32_OFF32_LIBS _CS_POSIX_V7_ILP32_OFF32_LIBS
-    _CS_POSIX_V7_ILP32_OFF32_LINTFLAGS,
-#define _CS_POSIX_V7_ILP32_OFF32_LINTFLAGS _CS_POSIX_V7_ILP32_OFF32_LINTFLAGS
-    _CS_POSIX_V7_ILP32_OFFBIG_CFLAGS,
-#define _CS_POSIX_V7_ILP32_OFFBIG_CFLAGS _CS_POSIX_V7_ILP32_OFFBIG_CFLAGS
-    _CS_POSIX_V7_ILP32_OFFBIG_LDFLAGS,
-#define _CS_POSIX_V7_ILP32_OFFBIG_LDFLAGS _CS_POSIX_V7_ILP32_OFFBIG_LDFLAGS
-    _CS_POSIX_V7_ILP32_OFFBIG_LIBS,
-#define _CS_POSIX_V7_ILP32_OFFBIG_LIBS _CS_POSIX_V7_ILP32_OFFBIG_LIBS
-    _CS_POSIX_V7_ILP32_OFFBIG_LINTFLAGS,
-#define _CS_POSIX_V7_ILP32_OFFBIG_LINTFLAGS _CS_POSIX_V7_ILP32_OFFBIG_LINTFLAGS
-    _CS_POSIX_V7_LP64_OFF64_CFLAGS,
-#define _CS_POSIX_V7_LP64_OFF64_CFLAGS _CS_POSIX_V7_LP64_OFF64_CFLAGS
-    _CS_POSIX_V7_LP64_OFF64_LDFLAGS,
-#define _CS_POSIX_V7_LP64_OFF64_LDFLAGS _CS_POSIX_V7_LP64_OFF64_LDFLAGS
-    _CS_POSIX_V7_LP64_OFF64_LIBS,
-#define _CS_POSIX_V7_LP64_OFF64_LIBS _CS_POSIX_V7_LP64_OFF64_LIBS
-    _CS_POSIX_V7_LP64_OFF64_LINTFLAGS,
-#define _CS_POSIX_V7_LP64_OFF64_LINTFLAGS _CS_POSIX_V7_LP64_OFF64_LINTFLAGS
-    _CS_POSIX_V7_LPBIG_OFFBIG_CFLAGS,
-#define _CS_POSIX_V7_LPBIG_OFFBIG_CFLAGS _CS_POSIX_V7_LPBIG_OFFBIG_CFLAGS
-    _CS_POSIX_V7_LPBIG_OFFBIG_LDFLAGS,
-#define _CS_POSIX_V7_LPBIG_OFFBIG_LDFLAGS _CS_POSIX_V7_LPBIG_OFFBIG_LDFLAGS
-    _CS_POSIX_V7_LPBIG_OFFBIG_LIBS,
-#define _CS_POSIX_V7_LPBIG_OFFBIG_LIBS _CS_POSIX_V7_LPBIG_OFFBIG_LIBS
-    _CS_POSIX_V7_LPBIG_OFFBIG_LINTFLAGS,
-#define _CS_POSIX_V7_LPBIG_OFFBIG_LINTFLAGS _CS_POSIX_V7_LPBIG_OFFBIG_LINTFLAGS
-
-    _CS_V6_ENV,
-#define _CS_V6_ENV			_CS_V6_ENV
-    _CS_V7_ENV
-#define _CS_V7_ENV			_CS_V7_ENV
-  };
diff --git a/bits/dirent.h b/bits/dirent.h
deleted file mode 100644
index 36ebb83d48..0000000000
--- a/bits/dirent.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/* Directory entry structure `struct dirent'.  4.4BSD/Generic version.
-   Copyright (C) 1996-2017 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 _DIRENT_H
-# error "Never use <bits/dirent.h> directly; include <dirent.h> instead."
-#endif
-
-struct dirent
-  {
-#ifndef __USE_FILE_OFFSET64
-    __ino_t d_ino;		/* File serial number.  */
-#else
-    __ino64_t d_ino;
-#endif
-    unsigned short int d_reclen; /* Length of the whole `struct dirent'.  */
-    unsigned char d_type;	/* File type, possibly unknown.  */
-    unsigned char d_namlen;	/* Length of the file name.  */
-
-    /* Only this member is in the POSIX standard.  */
-    char d_name[1];		/* File name (actually longer).  */
-  };
-
-#ifdef __USE_LARGEFILE64
-struct dirent64
-  {
-    __ino64_t d_ino;
-    unsigned short int d_reclen;
-    unsigned char d_type;
-    unsigned char d_namlen;
-
-    char d_name[1];
-  };
-#endif
-
-#define d_fileno	d_ino	/* Backwards compatibility.  */
-
-#define _DIRENT_HAVE_D_RECLEN 1
-#define _DIRENT_HAVE_D_NAMLEN 1
-#define _DIRENT_HAVE_D_TYPE 1
-
-#ifdef __INO_T_MATCHES_INO64_T
-/* Inform libc code that these two types are effectively identical.  */
-# define _DIRENT_MATCHES_DIRENT64	1
-#endif
diff --git a/bits/dlfcn.h b/bits/dlfcn.h
deleted file mode 100644
index 7786d8f939..0000000000
--- a/bits/dlfcn.h
+++ /dev/null
@@ -1,64 +0,0 @@
-/* System dependent definitions for run-time dynamic loading.
-   Copyright (C) 1996-2017 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 _DLFCN_H
-# error "Never use <bits/dlfcn.h> directly; include <dlfcn.h> instead."
-#endif
-
-/* The MODE argument to `dlopen' contains one of the following: */
-#define RTLD_LAZY	0x00001	/* Lazy function call binding.  */
-#define RTLD_NOW	0x00002	/* Immediate function call binding.  */
-#define	RTLD_BINDING_MASK   0x3	/* Mask of binding time value.  */
-#define RTLD_NOLOAD	0x00004	/* Do not load the object.  */
-#define RTLD_DEEPBIND	0x00008	/* Use deep binding.  */
-
-/* If the following bit is set in the MODE argument to `dlopen',
-   the symbols of the loaded object and its dependencies are made
-   visible as if the object were linked directly into the program.  */
-#define RTLD_GLOBAL	0x00100
-
-/* Unix98 demands the following flag which is the inverse to RTLD_GLOBAL.
-   The implementation does this by default and so we can define the
-   value to zero.  */
-#define RTLD_LOCAL	0
-
-/* Do not delete object when closed.  */
-#define RTLD_NODELETE	0x01000
-
-#ifdef __USE_GNU
-/* To support profiling of shared objects it is a good idea to call
-   the function found using `dlsym' using the following macro since
-   these calls do not use the PLT.  But this would mean the dynamic
-   loader has no chance to find out when the function is called.  The
-   macro applies the necessary magic so that profiling is possible.
-   Rewrite
-	foo = (*fctp) (arg1, arg2);
-   into
-        foo = DL_CALL_FCT (fctp, (arg1, arg2));
-*/
-# define DL_CALL_FCT(fctp, args) \
-  (_dl_mcount_wrapper_check ((void *) (fctp)), (*(fctp)) args)
-
-__BEGIN_DECLS
-
-/* This function calls the profiling functions.  */
-extern void _dl_mcount_wrapper_check (void *__selfpc) __THROW;
-
-__END_DECLS
-
-#endif
diff --git a/bits/elfclass.h b/bits/elfclass.h
deleted file mode 100644
index 180227d9e7..0000000000
--- a/bits/elfclass.h
+++ /dev/null
@@ -1,14 +0,0 @@
-/* This file specifies the native word size of the machine, which indicates
-   the ELF file class used for executables and shared objects on this
-   machine.  */
-
-#ifndef _LINK_H
-# error "Never use <bits/elfclass.h> directly; include <link.h> instead."
-#endif
-
-#include <bits/wordsize.h>
-
-#define __ELF_NATIVE_CLASS __WORDSIZE
-
-/* The entries in the .hash table always have a size of 32 bits.  */
-typedef uint32_t Elf_Symndx;
diff --git a/bits/endian.h b/bits/endian.h
deleted file mode 100644
index 45afd4ae47..0000000000
--- a/bits/endian.h
+++ /dev/null
@@ -1,13 +0,0 @@
-/* This file should define __BYTE_ORDER as appropriate for the machine
-   in question.  See string/endian.h for how to define it.
-
-   If only the stub bits/endian.h applies to a particular configuration,
-   bytesex.h is generated by running a program on the host machine.
-   So if cross-compiling to a machine with a different byte order,
-   the bits/endian.h file for that machine must exist.  */
-
-#ifndef _ENDIAN_H
-# error "Never use <bits/endian.h> directly; include <endian.h> instead."
-#endif
-
-#error Machine byte order unknown.
diff --git a/bits/environments.h b/bits/environments.h
deleted file mode 100644
index 95a261b65d..0000000000
--- a/bits/environments.h
+++ /dev/null
@@ -1,87 +0,0 @@
-/* Copyright (C) 1999-2017 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 _UNISTD_H
-# error "Never include this file directly.  Use <unistd.h> instead"
-#endif
-
-#include <bits/wordsize.h>
-
-/* This header should define the following symbols under the described
-   situations.  A value `1' means that the model is always supported,
-   `-1' means it is never supported.  Undefined means it cannot be
-   statically decided.
-
-   _POSIX_V7_ILP32_OFF32   32bit int, long, pointers, and off_t type
-   _POSIX_V7_ILP32_OFFBIG  32bit int, long, and pointers and larger off_t type
-
-   _POSIX_V7_LP64_OFF32	   64bit long and pointers and 32bit off_t type
-   _POSIX_V7_LPBIG_OFFBIG  64bit long and pointers and large off_t type
-
-   The macros _POSIX_V6_ILP32_OFF32, _POSIX_V6_ILP32_OFFBIG,
-   _POSIX_V6_LP64_OFF32, _POSIX_V6_LPBIG_OFFBIG, _XBS5_ILP32_OFF32,
-   _XBS5_ILP32_OFFBIG, _XBS5_LP64_OFF32, and _XBS5_LPBIG_OFFBIG were
-   used in previous versions of the Unix standard and are available
-   only for compatibility.
-*/
-
-#if __WORDSIZE == 64
-
-/* We can never provide environments with 32-bit wide pointers.  */
-# define _POSIX_V7_ILP32_OFF32	-1
-# define _POSIX_V7_ILP32_OFFBIG	-1
-# define _POSIX_V6_ILP32_OFF32	-1
-# define _POSIX_V6_ILP32_OFFBIG	-1
-# define _XBS5_ILP32_OFF32	-1
-# define _XBS5_ILP32_OFFBIG	-1
-/* We also have no use (for now) for an environment with bigger pointers
-   and offsets.  */
-# define _POSIX_V7_LPBIG_OFFBIG	-1
-# define _POSIX_V6_LPBIG_OFFBIG	-1
-# define _XBS5_LPBIG_OFFBIG	-1
-
-/* By default we have 64-bit wide `long int', pointers and `off_t'.  */
-# define _POSIX_V7_LP64_OFF64	1
-# define _POSIX_V6_LP64_OFF64	1
-# define _XBS5_LP64_OFF64	1
-
-#else /* __WORDSIZE == 32 */
-
-/* By default we have 32-bit wide `int', `long int', pointers and `off_t'
-   and all platforms support LFS.  */
-# define _POSIX_V7_ILP32_OFF32	1
-# define _POSIX_V7_ILP32_OFFBIG	1
-# define _POSIX_V6_ILP32_OFF32	1
-# define _POSIX_V6_ILP32_OFFBIG	1
-# define _XBS5_ILP32_OFF32	1
-# define _XBS5_ILP32_OFFBIG	1
-
-/* We optionally provide an environment with the above size but an 64-bit
-   side `off_t'.  Therefore we don't define _POSIX_V7_ILP32_OFFBIG.  */
-
-/* We can never provide environments with 64-bit wide pointers.  */
-# define _POSIX_V7_LP64_OFF64	-1
-# define _POSIX_V7_LPBIG_OFFBIG	-1
-# define _POSIX_V6_LP64_OFF64	-1
-# define _POSIX_V6_LPBIG_OFFBIG	-1
-# define _XBS5_LP64_OFF64	-1
-# define _XBS5_LPBIG_OFFBIG	-1
-
-/* CFLAGS.  */
-#define __ILP32_OFFBIG_CFLAGS   "-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
-
-#endif /* __WORDSIZE == 32 */
diff --git a/bits/errno.h b/bits/errno.h
deleted file mode 100644
index cd4fcfa428..0000000000
--- a/bits/errno.h
+++ /dev/null
@@ -1,34 +0,0 @@
-/* Copyright (C) 1991-2017 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/>.  */
-
-/* This file defines the `errno' constants.  */
-
-#if !defined __Emath_defined && (defined _ERRNO_H || defined __need_Emath)
-#undef	__need_Emath
-#define	__Emath_defined	1
-
-# define EDOM	XXX	<--- fill in what is actually needed
-# define EILSEQ	XXX	<--- fill in what is actually needed
-# define ERANGE	XXX	<--- fill in what is actually needed
-#endif
-
-#ifdef	_ERRNO_H
-# error "Define here all the missing error messages for the port.  These"
-# error "must match the numbers of the kernel."
-# define Exxxx	XXX
-...
-#endif
diff --git a/bits/fcntl.h b/bits/fcntl.h
deleted file mode 100644
index 6d195d7f21..0000000000
--- a/bits/fcntl.h
+++ /dev/null
@@ -1,149 +0,0 @@
-/* O_*, F_*, FD_* bit values. 4.4BSD/Generic version.
-   Copyright (C) 1991-2017 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	_FCNTL_H
-#error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
-#endif
-
-
-/* File access modes for `open' and `fcntl'.  */
-#define	O_RDONLY	0	/* Open read-only.  */
-#define	O_WRONLY	1	/* Open write-only.  */
-#define	O_RDWR		2	/* Open read/write.  */
-
-
-/* Bits OR'd into the second argument to open.  */
-#define	O_CREAT		0x0200	/* Create file if it doesn't exist.  */
-#define	O_EXCL		0x0800	/* Fail if file already exists.  */
-#define	O_TRUNC		0x0400	/* Truncate file to zero length.  */
-#define	O_NOCTTY	0x8000	/* Don't assign a controlling terminal.  */
-#define	O_ASYNC		0x0040	/* Send SIGIO to owner when data is ready.  */
-#define	O_FSYNC		0x0080	/* Synchronous writes.  */
-#define	O_SYNC		O_FSYNC
-#ifdef	__USE_MISC
-#define	O_SHLOCK	0x0010	/* Open with shared file lock.  */
-#define	O_EXLOCK	0x0020	/* Open with shared exclusive lock.  */
-#endif
-#ifdef __USE_XOPEN2K8
-# define O_DIRECTORY	0x00200000	/* Must be a directory.	 */
-# define O_NOFOLLOW	0x00000100	/* Do not follow links.	 */
-# define O_CLOEXEC	0x00400000      /* Set close_on_exec.  */
-#endif
-#if defined __USE_POSIX199309 || defined __USE_UNIX98
-# define O_DSYNC	0x00010000	/* Synchronize data.  */
-# define O_RSYNC	0x00020000	/* Synchronize read operations.	 */
-#endif
-
-/* All opens support large file sizes, so there is no flag bit for this.  */
-#ifdef __USE_LARGEFILE64
-# define O_LARGEFILE	0
-#endif
-
-/* File status flags for `open' and `fcntl'.  */
-#define	O_APPEND	0x0008	/* Writes append to the file.  */
-#define	O_NONBLOCK	0x0004	/* Non-blocking I/O.  */
-
-#ifdef __USE_MISC
-# define O_NDELAY	O_NONBLOCK
-#endif
-
-#ifdef __USE_MISC
-/* Bits in the file status flags returned by F_GETFL.
-   These are all the O_* flags, plus FREAD and FWRITE, which are
-   independent bits set by which of O_RDONLY, O_WRONLY, and O_RDWR, was
-   given to `open'.  */
-# define FREAD		1
-# define FWRITE		2
-
-/* Traditional BSD names the O_* bits.  */
-# define FASYNC		O_ASYNC
-# define FFSYNC		O_FSYNC
-# define FSYNC		O_SYNC
-# define FAPPEND	O_APPEND
-# define FNDELAY	O_NDELAY
-#endif
-
-/* Mask for file access modes.  This is system-dependent in case
-   some system ever wants to define some other flavor of access.  */
-#define	O_ACCMODE	(O_RDONLY|O_WRONLY|O_RDWR)
-
-/* Values for the second argument to `fcntl'.  */
-#define	F_DUPFD	  	0	/* Duplicate file descriptor.  */
-#define	F_GETFD		1	/* Get file descriptor flags.  */
-#define	F_SETFD		2	/* Set file descriptor flags.  */
-#define	F_GETFL		3	/* Get file status flags.  */
-#define	F_SETFL		4	/* Set file status flags.  */
-#if defined __USE_UNIX98 || defined __USE_XOPEN2K8
-#define	F_GETOWN	5	/* Get owner (receiver of SIGIO).  */
-#define	F_SETOWN	6	/* Set owner (receiver of SIGIO).  */
-#endif
-#define	F_GETLK		7	/* Get record locking info.  */
-#define	F_SETLK		8	/* Set record locking info (non-blocking).  */
-#define	F_SETLKW	9	/* Set record locking info (blocking).  */
-/* Not necessary, we always have 64-bit offsets.  */
-#define F_GETLK64	F_GETLK	/* Get record locking info.  */
-#define F_SETLK64	F_SETLK	/* Set record locking info (non-blocking).  */
-#define F_SETLKW64	F_SETLKW/* Set record locking info (blocking).	*/
-#ifdef __USE_XOPEN2K8
-# define F_DUPFD_CLOEXEC 12	/* Duplicate file descriptor with
-				   close-on-exit set.  */
-#endif
-
-/* File descriptor flags used with F_GETFD and F_SETFD.  */
-#define	FD_CLOEXEC	1	/* Close on exec.  */
-
-
-#include <bits/types.h>
-
-/* The structure describing an advisory lock.  This is the type of the third
-   argument to `fcntl' for the F_GETLK, F_SETLK, and F_SETLKW requests.  */
-struct flock
-  {
-    __off_t l_start;	/* Offset where the lock begins.  */
-    __off_t l_len;	/* Size of the locked area; zero means until EOF.  */
-    __pid_t l_pid;	/* Process holding the lock.  */
-    short int l_type;	/* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
-    short int l_whence;	/* Where `l_start' is relative to (like `lseek').  */
-  };
-
-#ifdef __USE_LARGEFILE64
-/* Note this matches struct flock exactly.  */
-struct flock64
-  {
-    __off_t l_start;	/* Offset where the lock begins.  */
-    __off_t l_len;	/* Size of the locked area; zero means until EOF.  */
-    __pid_t l_pid;	/* Process holding the lock.  */
-    short int l_type;	/* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
-    short int l_whence;	/* Where `l_start' is relative to (like `lseek').  */
-  };
-#endif
-
-/* Values for the `l_type' field of a `struct flock'.  */
-#define	F_RDLCK	1	/* Read lock.  */
-#define	F_WRLCK	2	/* Write lock.  */
-#define	F_UNLCK	3	/* Remove lock.  */
-
-/* Advise to `posix_fadvise'.  */
-#ifdef __USE_XOPEN2K
-# define POSIX_FADV_NORMAL	0 /* No further special treatment.  */
-# define POSIX_FADV_RANDOM	1 /* Expect random page references.  */
-# define POSIX_FADV_SEQUENTIAL	2 /* Expect sequential page references.  */
-# define POSIX_FADV_WILLNEED	3 /* Will need these pages.  */
-# define POSIX_FADV_DONTNEED	4 /* Don't need these pages.  */
-# define POSIX_FADV_NOREUSE	5 /* Data will be accessed once.  */
-#endif
diff --git a/bits/fenv.h b/bits/fenv.h
deleted file mode 100644
index b87f8400a6..0000000000
--- a/bits/fenv.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/* Copyright (C) 1997-2017 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 _FENV_H
-# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
-#endif
-
-
-/* Here should be the exception be defined:
-    FE_INVALID
-    FE_DIVBYZERO
-    FE_OVERFLOW
-    FE_UNDERFLOW
-    FE_INEXACT
-   We define no macro which signals no exception is supported.  */
-
-#define FE_ALL_EXCEPT 0
-
-
-/* Here should the rounding modes be defined:
-    FE_TONEAREST
-    FE_DOWNWARD
-    FE_UPWARD
-    FE_TOWARDZERO
-   We define no macro which signals no rounding mode is selectable.  */
-
-
-/* Type representing exception flags.  */
-typedef unsigned int fexcept_t;
-
-
-/* Type representing floating-point environment.  */
-typedef struct
-  {
-    fexcept_t __excepts;
-    /* XXX I don't know what else we should save.  */
-  }
-fenv_t;
-
-/* If the default argument is used we use this value.  */
-#define FE_DFL_ENV	((const fenv_t *) -1l)
-
-#if __GLIBC_USE (IEC_60559_BFP_EXT)
-/* Type representing floating-point control modes.  */
-typedef unsigned int femode_t;
-
-/* Default floating-point control modes.  */
-# define FE_DFL_MODE	((const femode_t *) -1L)
-#endif
diff --git a/bits/fenvinline.h b/bits/fenvinline.h
deleted file mode 100644
index 42f77b5618..0000000000
--- a/bits/fenvinline.h
+++ /dev/null
@@ -1,8 +0,0 @@
-/* This file provides inline versions of floating-pint environment
-   handling functions.  If there were any.  */
-
-#ifndef __NO_MATH_INLINES
-
-/* Here is where the code would go.  */
-
-#endif
diff --git a/bits/floatn.h b/bits/floatn.h
deleted file mode 100644
index a806496b87..0000000000
--- a/bits/floatn.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/* Macros to control TS 18661-3 glibc features.
-   Copyright (C) 2017 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/>.  */
-
-/* Defined to 1 if the current compiler invocation provides a
-   floating-point type with the IEEE 754 binary128 format, and this glibc
-   includes corresponding *f128 interfaces for it.  */
-#define __HAVE_FLOAT128 0
-
-/* Defined to 1 if __HAVE_FLOAT128 is 1 and the type is ABI-distinct
-   from the default float, double and long double types in this glibc.  */
-#define __HAVE_DISTINCT_FLOAT128 0
-
-/* Defined to concatenate the literal suffix to be used with _Float128
-   types, if __HAVE_FLOAT128 is 1.
-   E.g.: #define __f128(x) x##f128.  */
-#undef __f128
-
-/* Defined to a complex binary128 type if __HAVE_FLOAT128 is 1.
-   E.g.: #define __CFLOAT128 _Complex _Float128.  */
-#undef __CFLOAT128
diff --git a/bits/flt-eval-method.h b/bits/flt-eval-method.h
deleted file mode 100644
index 2da339e453..0000000000
--- a/bits/flt-eval-method.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/* Define __GLIBC_FLT_EVAL_METHOD.
-   Copyright (C) 2016-2017 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 _MATH_H
-# error "Never use <bits/flt-eval-method.h> directly; include <math.h> instead."
-#endif
-
-/* __GLIBC_FLT_EVAL_METHOD is the value of FLT_EVAL_METHOD used to
-   determine the evaluation method typedefs such as float_t and
-   double_t.  It must be a value from C11 or TS 18661-3:2015, and not
-   -1.  */
-
-/* In the default version of this header, follow __FLT_EVAL_METHOD__.
-   -1 is mapped to 2 (considering evaluation as long double to be a
-   conservatively safe assumption), and if __FLT_EVAL_METHOD__ is not
-   defined then assume there is no excess precision and use the value
-   0.  */
-
-#ifdef __FLT_EVAL_METHOD__
-# if __FLT_EVAL_METHOD__ == -1
-#  define __GLIBC_FLT_EVAL_METHOD	2
-# else
-#  define __GLIBC_FLT_EVAL_METHOD	__FLT_EVAL_METHOD__
-# endif
-#else
-# define __GLIBC_FLT_EVAL_METHOD	0
-#endif
diff --git a/bits/fp-fast.h b/bits/fp-fast.h
deleted file mode 100644
index 93ad3a4c84..0000000000
--- a/bits/fp-fast.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/* Define FP_FAST_* macros.
-   Copyright (C) 2016-2017 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 _MATH_H
-# error "Never use <bits/fp-fast.h> directly; include <math.h> instead."
-#endif
-
-#ifdef __USE_ISOC99
-
-/* The GCC 4.6 compiler will define __FP_FAST_FMA{,F,L} if the fma{,f,l}
-   builtins are supported.  */
-# ifdef __FP_FAST_FMA
-#  define FP_FAST_FMA 1
-# endif
-
-# ifdef __FP_FAST_FMAF
-#  define FP_FAST_FMAF 1
-# endif
-
-# ifdef __FP_FAST_FMAL
-#  define FP_FAST_FMAL 1
-# endif
-
-#endif
diff --git a/bits/fp-logb.h b/bits/fp-logb.h
deleted file mode 100644
index 2f28b636d1..0000000000
--- a/bits/fp-logb.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/* Define __FP_LOGB0_IS_MIN and __FP_LOGBNAN_IS_MIN.
-   Copyright (C) 2016-2017 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 _MATH_H
-# error "Never use <bits/fp-logb.h> directly; include <math.h> instead."
-#endif
-
-/* __FP_LOGB0_IS_MIN is defined to 1 if FP_ILOGB0 is INT_MIN, and 0 if
-   it is -INT_MAX.  __FP_LOGBNAN_IS_MIN is defined to 1 if FP_ILOGBNAN
-   is INT_MIN, and 0 if it is INT_MAX.  */
-
-#define __FP_LOGB0_IS_MIN	0
-#define __FP_LOGBNAN_IS_MIN	0
diff --git a/bits/huge_val.h b/bits/huge_val.h
deleted file mode 100644
index e29a793a76..0000000000
--- a/bits/huge_val.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/* Stub `HUGE_VAL' constant.
-   Used by <stdlib.h> and <math.h> functions for overflow.
-   Copyright (C) 1992-2017 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 _MATH_H
-# error "Never use <bits/huge_val.h> directly; include <math.h> instead."
-#endif
-
-#if __GNUC_PREREQ(3,3)
-# define HUGE_VAL	(__builtin_huge_val())
-#else
-# define HUGE_VAL	1e37
-#endif
diff --git a/bits/huge_val_flt128.h b/bits/huge_val_flt128.h
deleted file mode 100644
index 63c258e85c..0000000000
--- a/bits/huge_val_flt128.h
+++ /dev/null
@@ -1,23 +0,0 @@
-/* Default `HUGE_VAL_F128' constant.
-   Copyright (C) 2017 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 _MATH_H
-# error "Never use <bits/huge_val_flt128.h> directly; include <math.h> instead."
-#endif
-
-#define HUGE_VAL_F128 (__builtin_huge_valf128 ())
diff --git a/bits/huge_valf.h b/bits/huge_valf.h
deleted file mode 100644
index 4c48dab6c9..0000000000
--- a/bits/huge_valf.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/* Stub `HUGE_VALF' constant.
-   Used by <stdlib.h> and <math.h> functions for overflow.
-   Copyright (C) 1992-2017 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 _MATH_H
-# error "Never use <bits/huge_valf.h> directly; include <math.h> instead."
-#endif
-
-#if __GNUC_PREREQ(3,3)
-# define HUGE_VALF	(__builtin_huge_valf())
-#else
-# define HUGE_VALF	1e37f
-#endif
diff --git a/bits/huge_vall.h b/bits/huge_vall.h
deleted file mode 100644
index df404e45f8..0000000000
--- a/bits/huge_vall.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/* Default `HUGE_VALL' constant.
-   Used by <stdlib.h> and <math.h> functions for overflow.
-   Copyright (C) 1992-2017 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 _MATH_H
-# error "Never use <bits/huge_vall.h> directly; include <math.h> instead."
-#endif
-
-#if __GNUC_PREREQ(3,3)
-# define HUGE_VALL	(__builtin_huge_vall())
-#else
-# define HUGE_VALL	((long double) HUGE_VAL)
-#endif
diff --git a/bits/hwcap.h b/bits/hwcap.h
deleted file mode 100644
index 7d8e1fca6c..0000000000
--- a/bits/hwcap.h
+++ /dev/null
@@ -1,23 +0,0 @@
-/* Defines for bits in AT_HWCAP.
-   Copyright (C) 2012-2017 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_AUXV_H
-# error "Never include <bits/hwcap.h> directly; use <sys/auxv.h> instead."
-#endif
-
-/* No bits defined for this architecture.  */
diff --git a/bits/in.h b/bits/in.h
deleted file mode 100644
index cee19cb2df..0000000000
--- a/bits/in.h
+++ /dev/null
@@ -1,115 +0,0 @@
-/* Copyright (C) 1997-2017 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/>.  */
-
-/* Generic version.  */
-
-#ifndef _NETINET_IN_H
-# error "Never use <bits/in.h> directly; include <netinet/in.h> instead."
-#endif
-
-/* This is the generic version, do not assume a linux-based kernel.  */
-#define __USE_KERNEL_IPV6_DEFS 0
-
-/* To select the IP level.  */
-#define SOL_IP		0
-
-/* Options for use with `getsockopt' and `setsockopt' at the IP level.
-   The first word in the comment at the right is the data type used;
-   "bool" means a boolean value stored in an `int'.  */
-#define	IP_OPTIONS	1	/* ip_opts; IP per-packet options.  */
-#define	IP_HDRINCL	2	/* int; Header is included with data.  */
-#define	IP_TOS		3	/* int; IP type of service and precedence.  */
-#define	IP_TTL		4	/* int; IP time to live.  */
-#define	IP_RECVOPTS	5	/* bool; Receive all IP options w/datagram.  */
-#define	IP_RECVRETOPTS	6	/* bool; Receive IP options for response.  */
-#define	IP_RECVDSTADDR	7	/* bool; Receive IP dst addr w/datagram.  */
-#define	IP_RETOPTS	8	/* ip_opts; Set/get IP per-packet options.  */
-#define IP_MULTICAST_IF 9	/* in_addr; set/get IP multicast i/f */
-#define IP_MULTICAST_TTL 10	/* unsigned char; set/get IP multicast ttl */
-#define IP_MULTICAST_LOOP 11	/* bool; set/get IP multicast loopback */
-#define IP_ADD_MEMBERSHIP 12	/* ip_mreq; add an IP group membership */
-#define IP_DROP_MEMBERSHIP 13	/* ip_mreq; drop an IP group membership */
-
-/* Structure used to describe IP options for IP_OPTIONS and IP_RETOPTS.
-   The `ip_dst' field is used for the first-hop gateway when using a
-   source route (this gets put into the header proper).  */
-struct ip_opts
-  {
-    struct in_addr ip_dst;	/* First hop; zero without source route.  */
-    char ip_opts[40];		/* Actually variable in size.  */
-  };
-
-/* Socket-level values for IPv6.  */
-#define SOL_IPV6		41
-#define SOL_ICMPV6		58
-
-/* IPV6 socket options.  */
-#define IPV6_ADDRFORM		1
-#define IPV6_2292PKTINFO	2
-#define IPV6_2292HOPOPTS	3
-#define IPV6_2292DSTOPTS	4
-#define IPV6_2292RTHDR		5
-#define IPV6_2292PKTOPTIONS	6
-#define IPV6_CHECKSUM		7
-#define IPV6_2292HOPLIMIT	8
-
-#define IPV6_RXINFO		IPV6_2292PKTINFO
-#define IPV6_TXINFO		IPV6_RXINFO
-#define SCM_SRCINFO		IPV6_TXINFO
-#define SCM_SRCRT		IPV6_RXSRCRT
-
-#define IPV6_UNICAST_HOPS	16
-#define IPV6_MULTICAST_IF	17
-#define IPV6_MULTICAST_HOPS	18
-#define IPV6_MULTICAST_LOOP	19
-#define IPV6_JOIN_GROUP		20
-#define IPV6_LEAVE_GROUP	21
-#define IPV6_ROUTER_ALERT      22
-#define IPV6_MTU_DISCOVER      23
-#define IPV6_MTU               24
-#define IPV6_RECVERR           25
-#define IPV6_V6ONLY            26
-#define IPV6_JOIN_ANYCAST      27
-#define IPV6_LEAVE_ANYCAST     28
-
-/* Advanced API (RFC3542) (1).  */
-#define IPV6_RECVPKTINFO	49
-#define IPV6_PKTINFO		50
-#define IPV6_RECVHOPLIMIT	51
-#define IPV6_HOPLIMIT		52
-#define IPV6_RECVHOPOPTS	53
-#define IPV6_HOPOPTS		54
-#define IPV6_RTHDRDSTOPTS	55
-#define IPV6_RECVRTHDR		56
-#define IPV6_RTHDR		57
-#define IPV6_RECVDSTOPTS	58
-#define IPV6_DSTOPTS		59
-#define IPV6_RECVPATHMTU	60
-#define IPV6_PATHMTU		61
-#define IPV6_DONTFRAG		62
-
-/* Obsolete synonyms for the above.  */
-#define IPV6_ADD_MEMBERSHIP	IPV6_JOIN_GROUP
-#define IPV6_DROP_MEMBERSHIP	IPV6_LEAVE_GROUP
-#define IPV6_RXHOPOPTS		IPV6_2292HOPOPTS
-#define IPV6_RXDSTOPTS		IPV6_2292DSTOPTS
-
-/* Routing header options for IPv6.  */
-#define IPV6_RTHDR_LOOSE	0	/* Hop doesn't need to be neighbour. */
-#define IPV6_RTHDR_STRICT	1	/* Hop must be a neighbour.  */
-
-#define IPV6_RTHDR_TYPE_0	0	/* IPv6 Routing header type 0.  */
diff --git a/bits/inf.h b/bits/inf.h
deleted file mode 100644
index 5c66ca33d5..0000000000
--- a/bits/inf.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/* Default `INFINITY' constant.
-   Copyright (C) 2004-2017 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 _MATH_H
-# error "Never use <bits/inf.h> directly; include <math.h> instead."
-#endif
-
-/* If we don't have real infinity, then we're supposed to produce a float
-   value that overflows at translation time, which is required to produce
-   a diagnostic.  GCC's __builtin_inff produces a quite nice diagnostic
-   that tells the user that the target doesn't support infinities.  */
-
-#if __GNUC_PREREQ(3,3)
-# define INFINITY	(__builtin_inff())
-#else
-# define INFINITY	(1e9999f)
-#endif
diff --git a/bits/ioctl-types.h b/bits/ioctl-types.h
deleted file mode 100644
index d84503ff80..0000000000
--- a/bits/ioctl-types.h
+++ /dev/null
@@ -1,113 +0,0 @@
-/* Structure types for pre-termios terminal ioctls.  Generic Unix version.
-   Copyright (C) 1996-2017 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
-
-#if defined TIOCGETC || defined TIOCSETC
-/* Type of ARG for TIOCGETC and TIOCSETC requests.  */
-struct tchars
-{
-  char t_intrc;			/* Interrupt character.  */
-  char t_quitc;			/* Quit character.  */
-  char t_startc;		/* Start-output character.  */
-  char t_stopc;			/* Stop-output character.  */
-  char t_eofc;			/* End-of-file character.  */
-  char t_brkc;			/* Input delimiter character.  */
-};
-
-# define	_IOT_tchars	/* Hurd ioctl type field.  */ \
-  _IOT (_IOTS (char), 6, 0, 0, 0, 0)
-#endif
-
-#if defined TIOCGLTC || defined TIOCSLTC
-/* Type of ARG for TIOCGLTC and TIOCSLTC requests.  */
-struct ltchars
-{
-  char t_suspc;			/* Suspend character.  */
-  char t_dsuspc;		/* Delayed suspend character.  */
-  char t_rprntc;		/* Reprint-line character.  */
-  char t_flushc;		/* Flush-output character.  */
-  char t_werasc;		/* Word-erase character.  */
-  char t_lnextc;		/* Literal-next character.  */
-};
-
-# define	_IOT_ltchars	/* Hurd ioctl type field.  */ \
-  _IOT (_IOTS (char), 6, 0, 0, 0, 0)
-#endif
-
-/* Type of ARG for TIOCGETP and TIOCSETP requests (and gtty and stty).  */
-struct sgttyb
-{
-  char sg_ispeed;		/* Input speed.  */
-  char sg_ospeed;		/* Output speed.  */
-  char sg_erase;		/* Erase character.  */
-  char sg_kill;			/* Kill character.  */
-  short int sg_flags;		/* Mode flags.  */
-};
-
-#define	_IOT_sgttyb	/* Hurd ioctl type field.  */ \
-  _IOT (_IOTS (char), 4, _IOTS (short int), 1, 0, 0)
-
-#if defined TIOCGWINSZ || defined TIOCSWINSZ
-/* Type of ARG for TIOCGWINSZ and TIOCSWINSZ requests.  */
-struct winsize
-{
-  unsigned short int ws_row;	/* Rows, in characters.  */
-  unsigned short int ws_col;	/* Columns, in characters.  */
-
-  /* These are not actually used.  */
-  unsigned short int ws_xpixel;	/* Horizontal pixels.  */
-  unsigned short int ws_ypixel;	/* Vertical pixels.  */
-};
-
-# define	_IOT_winsize	/* Hurd ioctl type field.  */ \
-  _IOT (_IOTS (unsigned short int), 4, 0, 0, 0, 0)
-#endif
-
-#if defined TIOCGSIZE || defined TIOCSSIZE
-/* The BSD-style ioctl constructor macros use `sizeof', which can't be used
-   in a preprocessor conditional.  Since the commands are always unique
-   regardless of the size bits, we can safely define away `sizeof' for the
-   purpose of the conditional.  */
-# define sizeof(type) 0
-# if defined TIOCGWINSZ && TIOCGSIZE == TIOCGWINSZ
-/* Many systems that have TIOCGWINSZ define TIOCGSIZE for source
-   compatibility with Sun; they define `struct ttysize' to have identical
-   layout as `struct winsize' and #define TIOCGSIZE to be TIOCGWINSZ
-   (likewise TIOCSSIZE and TIOCSWINSZ).  */
-struct ttysize
-{
-  unsigned short int ts_lines;
-  unsigned short int ts_cols;
-  unsigned short int ts_xxx;
-  unsigned short int ts_yyy;
-};
-#  define	_IOT_ttysize	_IOT_winsize
-# else
-/* Suns use a different layout for `struct ttysize', and TIOCGSIZE and
-   TIOCGWINSZ are separate commands that do the same thing with different
-   structures (likewise TIOCSSIZE and TIOCSWINSZ).  */
-struct ttysize
-{
-  int ts_lines, ts_cols;	/* Lines and columns, in characters.  */
-};
-# endif
-# undef sizeof			/* See above.  */
-#endif
diff --git a/bits/ioctls.h b/bits/ioctls.h
deleted file mode 100644
index d3ecad9515..0000000000
--- a/bits/ioctls.h
+++ /dev/null
@@ -1,5 +0,0 @@
-#ifndef _SYS_IOCTL_H
-# error "Never use <bits/ioctls.h> directly; include <sys/ioctl.h> instead."
-#endif
-
-/* This space intentionally left blank.  */
diff --git a/bits/ipc.h b/bits/ipc.h
deleted file mode 100644
index cafbe0f3a2..0000000000
--- a/bits/ipc.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/* Copyright (C) 1995-2017 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_IPC_H
-# error "Never use <bits/ipc.h> directly; include <sys/ipc.h> instead."
-#endif
-
-#include <bits/types.h>
-
-/* Mode bits for `msgget', `semget', and `shmget'.  */
-#define IPC_CREAT	01000		/* create key if key does not exist */
-#define IPC_EXCL	02000		/* fail if key exists */
-#define IPC_NOWAIT	04000		/* return error on wait */
-
-/* Control commands for `msgctl', `semctl', and `shmctl'.  */
-#define IPC_RMID	0		/* remove identifier */
-#define IPC_SET		1		/* set `ipc_perm' options */
-#define IPC_STAT	2		/* get `ipc_perm' options */
-
-/* Special key values.  */
-#define IPC_PRIVATE	((key_t) 0)	/* private key */
-
-
-/* Data structure used to pass permission information to IPC operations.  */
-struct ipc_perm
-  {
-    __uid_t uid;			/* owner's user ID */
-    __gid_t gid;			/* owner's group ID */
-    __uid_t cuid;			/* creator's user ID */
-    __gid_t cgid;			/* creator's group ID */
-    __mode_t mode;			/* read/write permission */
-  };
diff --git a/bits/ipctypes.h b/bits/ipctypes.h
deleted file mode 100644
index ca2e45e70d..0000000000
--- a/bits/ipctypes.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/* bits/ipctypes.h -- Define some types used by SysV IPC/MSG/SHM.  Generic.
-   Copyright (C) 2002-2017 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/>.  */
-
-/*
- * Never include <bits/ipctypes.h> directly.
- */
-
-#ifndef _BITS_IPCTYPES_H
-#define _BITS_IPCTYPES_H	1
-
-#include <bits/types.h>
-
-/* Used in `struct shmid_ds'.  */
-# if __WORDSIZE == 32
-typedef unsigned short int __ipc_pid_t;
-# else
-typedef int __ipc_pid_t;
-# endif
-
-
-#endif /* bits/ipctypes.h */
diff --git a/bits/iscanonical.h b/bits/iscanonical.h
deleted file mode 100644
index 1d437d6cad..0000000000
--- a/bits/iscanonical.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/* Define iscanonical macro.
-   Copyright (C) 2016-2017 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 _MATH_H
-# error "Never use <bits/iscanonical.h> directly; include <math.h> instead."
-#endif
-
-/* Return nonzero value if X is canonical.  By default, we only have
-   IEEE interchange binary formats, in which all values are canonical,
-   but the argument must still be converted to its semantic type for
-   any exceptions arising from the conversion, before being
-   discarded.  */
-#define iscanonical(x) ((void) (__typeof (x)) (x), 1)
diff --git a/bits/libc-header-start.h b/bits/libc-header-start.h
deleted file mode 100644
index 0ce16e2532..0000000000
--- a/bits/libc-header-start.h
+++ /dev/null
@@ -1,70 +0,0 @@
-/* Handle feature test macros at the start of a header.
-   Copyright (C) 2016-2017 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/>.  */
-
-/* This header is internal to glibc and should not be included outside
-   of glibc headers.  Headers including it must define
-   __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION first.  This header
-   cannot have multiple include guards because ISO C feature test
-   macros depend on the definition of the macro when an affected
-   header is included, not when the first system header is
-   included.  */
-
-#ifndef __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION
-# error "Never include <bits/libc-header-start.h> directly."
-#endif
-
-#undef __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION
-
-#include <features.h>
-
-/* ISO/IEC TR 24731-2:2010 defines the __STDC_WANT_LIB_EXT2__
-   macro.  */
-#undef __GLIBC_USE_LIB_EXT2
-#if (defined __USE_GNU							\
-     || (defined __STDC_WANT_LIB_EXT2__ && __STDC_WANT_LIB_EXT2__ > 0))
-# define __GLIBC_USE_LIB_EXT2 1
-#else
-# define __GLIBC_USE_LIB_EXT2 0
-#endif
-
-/* ISO/IEC TS 18661-1:2014 defines the __STDC_WANT_IEC_60559_BFP_EXT__
-   macro.  */
-#undef __GLIBC_USE_IEC_60559_BFP_EXT
-#if defined __USE_GNU || defined __STDC_WANT_IEC_60559_BFP_EXT__
-# define __GLIBC_USE_IEC_60559_BFP_EXT 1
-#else
-# define __GLIBC_USE_IEC_60559_BFP_EXT 0
-#endif
-
-/* ISO/IEC TS 18661-4:2015 defines the
-   __STDC_WANT_IEC_60559_FUNCS_EXT__ macro.  */
-#undef __GLIBC_USE_IEC_60559_FUNCS_EXT
-#if defined __USE_GNU || defined __STDC_WANT_IEC_60559_FUNCS_EXT__
-# define __GLIBC_USE_IEC_60559_FUNCS_EXT 1
-#else
-# define __GLIBC_USE_IEC_60559_FUNCS_EXT 0
-#endif
-
-/* ISO/IEC TS 18661-3:2015 defines the
-   __STDC_WANT_IEC_60559_TYPES_EXT__ macro.  */
-#undef __GLIBC_USE_IEC_60559_TYPES_EXT
-#if defined __USE_GNU || defined __STDC_WANT_IEC_60559_TYPES_EXT__
-# define __GLIBC_USE_IEC_60559_TYPES_EXT 1
-#else
-# define __GLIBC_USE_IEC_60559_TYPES_EXT 0
-#endif
diff --git a/bits/libm-simd-decl-stubs.h b/bits/libm-simd-decl-stubs.h
deleted file mode 100644
index 6794b9f9a8..0000000000
--- a/bits/libm-simd-decl-stubs.h
+++ /dev/null
@@ -1,65 +0,0 @@
-/* Empty definitions required for __MATHCALL_VEC unfolding in mathcalls.h.
-   Copyright (C) 2014-2017 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 _MATH_H
-# error "Never include <bits/libm-simd-decl-stubs.h> directly;\
- include <math.h> instead."
-#endif
-
-/* Needed definitions could be generated with:
-   for func in $(grep __MATHCALL_VEC math/bits/mathcalls.h |\
-		 sed -r "s|__MATHCALL_VEC.?\(||; s|,.*||"); do
-     echo "#define __DECL_SIMD_${func}";
-     echo "#define __DECL_SIMD_${func}f";
-     echo "#define __DECL_SIMD_${func}l";
-   done
- */
-
-#ifndef _BITS_LIBM_SIMD_DECL_STUBS_H
-#define _BITS_LIBM_SIMD_DECL_STUBS_H 1
-
-#define __DECL_SIMD_cos
-#define __DECL_SIMD_cosf
-#define __DECL_SIMD_cosl
-#define __DECL_SIMD_cosf128
-
-#define __DECL_SIMD_sin
-#define __DECL_SIMD_sinf
-#define __DECL_SIMD_sinl
-#define __DECL_SIMD_sinf128
-
-#define __DECL_SIMD_sincos
-#define __DECL_SIMD_sincosf
-#define __DECL_SIMD_sincosl
-#define __DECL_SIMD_sincosf128
-
-#define __DECL_SIMD_log
-#define __DECL_SIMD_logf
-#define __DECL_SIMD_logl
-#define __DECL_SIMD_logf128
-
-#define __DECL_SIMD_exp
-#define __DECL_SIMD_expf
-#define __DECL_SIMD_expl
-#define __DECL_SIMD_expf128
-
-#define __DECL_SIMD_pow
-#define __DECL_SIMD_powf
-#define __DECL_SIMD_powl
-#define __DECL_SIMD_powf128
-#endif
diff --git a/bits/link.h b/bits/link.h
deleted file mode 100644
index 6b4f811c25..0000000000
--- a/bits/link.h
+++ /dev/null
@@ -1 +0,0 @@
-#error "Architecture-specific definition needed."
diff --git a/bits/local_lim.h b/bits/local_lim.h
deleted file mode 100644
index 42cc7ebbc9..0000000000
--- a/bits/local_lim.h
+++ /dev/null
@@ -1,3 +0,0 @@
-/* This file should define the implementation-specific limits described
-   in posix[12]_lim.h.  If there are no useful values to give a limit,
-   don't define it.  */
diff --git a/bits/long-double.h b/bits/long-double.h
deleted file mode 100644
index 89182686a8..0000000000
--- a/bits/long-double.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/* Properties of long double type.
-   Copyright (C) 2016-2017 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  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/>.  */
-
-/* This header is included by <sys/cdefs.h>.
-
-   If long double is ABI-compatible with double, it should define
-   __NO_LONG_DOUBLE_MATH to 1; otherwise, it should leave
-   __NO_LONG_DOUBLE_MATH undefined.
-
-   If this build of the GNU C Library supports both long double
-   ABI-compatible with double and some other long double format not
-   ABI-compatible with double, it should define
-   __LONG_DOUBLE_MATH_OPTIONAL to 1; otherwise, it should leave
-   __LONG_DOUBLE_MATH_OPTIONAL undefined.
-
-   If __NO_LONG_DOUBLE_MATH is already defined, this header must not
-   define anything; this is needed to work with the definition of
-   __NO_LONG_DOUBLE_MATH in nldbl-compat.h.  */
-
-/* In the default version of this header, long double is
-   ABI-compatible with double.  */
-#ifndef __NO_LONG_DOUBLE_MATH
-# define __NO_LONG_DOUBLE_MATH	1
-#endif
diff --git a/bits/math-vector.h b/bits/math-vector.h
deleted file mode 100644
index 49c05f4a1a..0000000000
--- a/bits/math-vector.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/* Platform-specific SIMD declarations of math functions.
-   Copyright (C) 2014-2017 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  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 _MATH_H
-# error "Never include <bits/math-vector.h> directly;\
- include <math.h> instead."
-#endif
-
-/* Get default empty definitions required for __MATHCALL_VEC unfolding.
-   Plaform-specific analogue of this header should redefine them with specific
-   SIMD declarations.  */
-#include <bits/libm-simd-decl-stubs.h>
diff --git a/bits/mathdef.h b/bits/mathdef.h
deleted file mode 100644
index d1402600e8..0000000000
--- a/bits/mathdef.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/* Copyright (C) 1997-2017 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 _COMPLEX_H
-# error "Never use <bits/mathdef.h> directly; include <complex.h> instead"
-#endif
diff --git a/bits/mathinline.h b/bits/mathinline.h
deleted file mode 100644
index 02ec21b438..0000000000
--- a/bits/mathinline.h
+++ /dev/null
@@ -1,12 +0,0 @@
-/* This file should provide inline versions of math functions.
-
-   Surround GCC-specific parts with #ifdef __GNUC__, and use `__extern_inline'.
-
-   This file should define __MATH_INLINES if functions are actually defined as
-   inlines.  */
-
-#if !defined __NO_MATH_INLINES && defined __OPTIMIZE__
-
-/* Here goes the real code.  */
-
-#endif
diff --git a/bits/mman-linux.h b/bits/mman-linux.h
deleted file mode 100644
index 8126ce8369..0000000000
--- a/bits/mman-linux.h
+++ /dev/null
@@ -1,114 +0,0 @@
-/* Definitions for POSIX memory map interface.  Linux generic version.
-   Copyright (C) 2001-2017 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_MMAN_H
-# error "Never use <bits/mman-linux.h> directly; include <sys/mman.h> instead."
-#endif
-
-/* The following definitions basically come from the kernel headers.
-   But the kernel header is not namespace clean.
-
-   This file is also used by some non-Linux configurations of the
-   GNU C Library, for other systems that use these same bit values.  */
-
-
-/* Protections are chosen from these bits, OR'd together.  The
-   implementation does not necessarily support PROT_EXEC or PROT_WRITE
-   without PROT_READ.  The only guarantees are that no writing will be
-   allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define PROT_READ	0x1		/* Page can be read.  */
-#define PROT_WRITE	0x2		/* Page can be written.  */
-#define PROT_EXEC	0x4		/* Page can be executed.  */
-#define PROT_NONE	0x0		/* Page can not be accessed.  */
-#define PROT_GROWSDOWN	0x01000000	/* Extend change to start of
-					   growsdown vma (mprotect only).  */
-#define PROT_GROWSUP	0x02000000	/* Extend change to start of
-					   growsup vma (mprotect only).  */
-
-/* Sharing types (must choose one and only one of these).  */
-#define MAP_SHARED	0x01		/* Share changes.  */
-#define MAP_PRIVATE	0x02		/* Changes are private.  */
-#ifdef __USE_MISC
-# define MAP_TYPE	0x0f		/* Mask for type of mapping.  */
-#endif
-
-/* Other flags.  */
-#define MAP_FIXED	0x10		/* Interpret addr exactly.  */
-#ifdef __USE_MISC
-# define MAP_FILE	0
-# ifdef __MAP_ANONYMOUS
-#  define MAP_ANONYMOUS	__MAP_ANONYMOUS	/* Don't use a file.  */
-# else
-#  define MAP_ANONYMOUS	0x20		/* Don't use a file.  */
-# endif
-# define MAP_ANON	MAP_ANONYMOUS
-/* When MAP_HUGETLB is set bits [26:31] encode the log2 of the huge page size.  */
-# define MAP_HUGE_SHIFT	26
-# define MAP_HUGE_MASK	0x3f
-#endif
-
-/* Flags to `msync'.  */
-#define MS_ASYNC	1		/* Sync memory asynchronously.  */
-#define MS_SYNC		4		/* Synchronous memory sync.  */
-#define MS_INVALIDATE	2		/* Invalidate the caches.  */
-
-/* Flags for `mremap'.  */
-#ifdef __USE_GNU
-# define MREMAP_MAYMOVE	1
-# define MREMAP_FIXED	2
-#endif
-
-/* Advice to `madvise'.  */
-#ifdef __USE_MISC
-# define MADV_NORMAL	  0	/* No further special treatment.  */
-# define MADV_RANDOM	  1	/* Expect random page references.  */
-# define MADV_SEQUENTIAL  2	/* Expect sequential page references.  */
-# define MADV_WILLNEED	  3	/* Will need these pages.  */
-# define MADV_DONTNEED	  4	/* Don't need these pages.  */
-# define MADV_FREE	  8	/* Free pages only if memory pressure.  */
-# define MADV_REMOVE	  9	/* Remove these pages and resources.  */
-# define MADV_DONTFORK	  10	/* Do not inherit across fork.  */
-# define MADV_DOFORK	  11	/* Do inherit across fork.  */
-# define MADV_MERGEABLE	  12	/* KSM may merge identical pages.  */
-# define MADV_UNMERGEABLE 13	/* KSM may not merge identical pages.  */
-# define MADV_HUGEPAGE	  14	/* Worth backing with hugepages.  */
-# define MADV_NOHUGEPAGE  15	/* Not worth backing with hugepages.  */
-# define MADV_DONTDUMP	  16    /* Explicity exclude from the core dump,
-                                   overrides the coredump filter bits.  */
-# define MADV_DODUMP	  17	/* Clear the MADV_DONTDUMP flag.  */
-# define MADV_HWPOISON	  100	/* Poison a page for testing.  */
-#endif
-
-/* The POSIX people had to invent similar names for the same things.  */
-#ifdef __USE_XOPEN2K
-# define POSIX_MADV_NORMAL	0 /* No further special treatment.  */
-# define POSIX_MADV_RANDOM	1 /* Expect random page references.  */
-# define POSIX_MADV_SEQUENTIAL	2 /* Expect sequential page references.  */
-# define POSIX_MADV_WILLNEED	3 /* Will need these pages.  */
-# define POSIX_MADV_DONTNEED	4 /* Don't need these pages.  */
-#endif
-
-/* Flags for `mlockall'.  */
-#ifndef MCL_CURRENT
-# define MCL_CURRENT	1		/* Lock all currently mapped pages.  */
-# define MCL_FUTURE	2		/* Lock all additions to address
-					   space.  */
-# define MCL_ONFAULT	4		/* Lock all pages that are
-					   faulted in.  */
-#endif
diff --git a/bits/mman.h b/bits/mman.h
deleted file mode 100644
index c32dcc198c..0000000000
--- a/bits/mman.h
+++ /dev/null
@@ -1,94 +0,0 @@
-/* Definitions for BSD-style memory management.
-   Copyright (C) 1994-2017 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/>.  */
-
-/* These are the bits used by 4.4 BSD and its derivatives.  On systems
-   (such as GNU) where these facilities are not system services but can be
-   emulated in the C library, these are the definitions we emulate.  */
-
-#ifndef _SYS_MMAN_H
-# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
-#endif
-
-/* Protections are chosen from these bits, OR'd together.  The
-   implementation does not necessarily support PROT_EXEC or PROT_WRITE
-   without PROT_READ.  The only guarantees are that no writing will be
-   allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define	PROT_NONE	 0x00	/* No access.  */
-#define	PROT_READ	 0x04	/* Pages can be read.  */
-#define	PROT_WRITE	 0x02	/* Pages can be written.  */
-#define	PROT_EXEC	 0x01	/* Pages can be executed.  */
-
-/* Flags contain mapping type, sharing type and options.  */
-
-/* Mapping type (must choose one and only one of these).  */
-#ifdef __USE_MISC
-# define MAP_FILE	 0x0001	/* Mapped from a file or device.  */
-# define MAP_ANON	 0x0002	/* Allocated from anonymous virtual memory.  */
-# define MAP_TYPE	 0x000f	/* Mask for type field.  */
-# define MAP_ANONYMOUS	 MAP_ANON /* Linux name. */
-#endif
-
-/* Sharing types (must choose one and only one of these).  */
-#ifdef __USE_MISC
-# define MAP_COPY	 0x0020	/* Virtual copy of region at mapping time.  */
-#endif
-#define	MAP_SHARED	 0x0010	/* Share changes.  */
-#define	MAP_PRIVATE	 0x0000	/* Changes private; copy pages on write.  */
-
-/* Other flags.  */
-#define	MAP_FIXED	 0x0100	/* Map address must be exactly as requested. */
-#ifdef __USE_MISC
-# define MAP_NOEXTEND	 0x0200	/* For MAP_FILE, don't change file size.  */
-# define MAP_HASSEMPHORE 0x0400	/* Region may contain semaphores.  */
-# define MAP_INHERIT	 0x0800	/* Region is retained after exec.  */
-#endif
-
-/* Advice to `madvise'.  */
-#ifdef __USE_MISC
-# define MADV_NORMAL	 0	/* No further special treatment.  */
-# define MADV_RANDOM	 1	/* Expect random page references.  */
-# define MADV_SEQUENTIAL 2	/* Expect sequential page references.  */
-# define MADV_WILLNEED	 3	/* Will need these pages.  */
-# define MADV_DONTNEED	 4	/* Don't need these pages.  */
-#endif
-
-/* The POSIX people had to invent similar names for the same things.  */
-#ifdef __USE_XOPEN2K
-# define POSIX_MADV_NORMAL	0 /* No further special treatment.  */
-# define POSIX_MADV_RANDOM	1 /* Expect random page references.  */
-# define POSIX_MADV_SEQUENTIAL	2 /* Expect sequential page references.  */
-# define POSIX_MADV_WILLNEED	3 /* Will need these pages.  */
-# define POSIX_MADV_DONTNEED	4 /* Don't need these pages.  */
-#endif
-
-/* Flags to `msync'.  */
-#define MS_ASYNC	1		/* Sync memory asynchronously.  */
-#define MS_SYNC		0		/* Synchronous memory sync.  */
-#define MS_INVALIDATE	2		/* Invalidate the caches.  */
-
-/* Flags for `mremap'.  */
-#ifdef __USE_GNU
-# define MREMAP_MAYMOVE	1		/* Mapping address may change.  */
-# define MREMAP_FIXED	2		/* Fifth argument sets new address.  */
-#endif
-
-/* Flags for `mlockall' (can be OR'd together).  */
-#define MCL_CURRENT	1		/* Lock all currently mapped pages.  */
-#define MCL_FUTURE	2		/* Lock all additions to address
-					   space.  */
diff --git a/bits/mqueue.h b/bits/mqueue.h
deleted file mode 100644
index d9fa1306c7..0000000000
--- a/bits/mqueue.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/* Copyright (C) 2004-2017 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 _MQUEUE_H
-# error "Never use <bits/mqueue.h> directly; include <mqueue.h> instead."
-#endif
-
-typedef int mqd_t;
-
-struct mq_attr
-{
-  long int mq_flags;	/* Message queue flags.  */
-  long int mq_maxmsg;	/* Maximum number of messages.  */
-  long int mq_msgsize;	/* Maximum message size.  */
-  long int mq_curmsgs;	/* Number of messages currently queued.  */
-};
diff --git a/bits/msq.h b/bits/msq.h
deleted file mode 100644
index d1162acf73..0000000000
--- a/bits/msq.h
+++ /dev/null
@@ -1,44 +0,0 @@
-/* Copyright (C) 1995-2017 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_MSG_H
-#error "Never use <bits/msq.h> directly; include <sys/msg.h> instead."
-#endif
-
-#include <bits/types.h>
-
-/* Define options for message queue functions.  */
-#define MSG_NOERROR	010000	/* no error if message is too big */
-
-/* Types used in the structure definition.  */
-typedef unsigned short int msgqnum_t;
-typedef unsigned short int msglen_t;
-
-
-/* Structure of record for one message inside the kernel.
-   The type `struct __msg' is opaque.  */
-struct msqid_ds
-{
-  struct ipc_perm msg_perm;	/* structure describing operation permission */
-  __time_t msg_stime;		/* time of last msgsnd command */
-  __time_t msg_rtime;		/* time of last msgrcv command */
-  __time_t msg_ctime;		/* time of last change */
-  msgqnum_t msg_qnum;		/* number of messages currently on queue */
-  msglen_t msg_qbytes;		/* max number of bytes allowed on queue */
-  __pid_t msg_lspid;		/* pid of last msgsnd() */
-  __pid_t msg_lrpid;		/* pid of last msgrcv() */
-};
diff --git a/bits/nan.h b/bits/nan.h
deleted file mode 100644
index ab38168ea4..0000000000
--- a/bits/nan.h
+++ /dev/null
@@ -1,5 +0,0 @@
-#ifndef _MATH_H
-#error "Never use <bits/nan.h> directly; include <math.h> instead."
-#endif
-
-/* This file should define `NAN' on machines that have such things.  */
diff --git a/bits/netdb.h b/bits/netdb.h
deleted file mode 100644
index a03b1a86b6..0000000000
--- a/bits/netdb.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/* Copyright (C) 1996-2017 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 _NETDB_H
-# error "Never include <bits/netdb.h> directly; use <netdb.h> instead."
-#endif
-
-
-/* Description of data base entry for a single network.  NOTE: here a
-   poor assumption is made.  The network number is expected to fit
-   into an unsigned long int variable.  */
-struct netent
-{
-  char *n_name;			/* Official name of network.  */
-  char **n_aliases;		/* Alias list.  */
-  int n_addrtype;		/* Net address type.  */
-  uint32_t n_net;		/* Network number.  */
-};
diff --git a/bits/param.h b/bits/param.h
deleted file mode 100644
index de432e0960..0000000000
--- a/bits/param.h
+++ /dev/null
@@ -1,33 +0,0 @@
-/* Old-style Unix parameters and limits.  Stub version.
-   Copyright (C) 1995-2017 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_PARAM_H
-# error "Never use <bits/param.h> directly; include <sys/param.h> instead."
-#endif
-
-/* This header is expected to define a few particular macros.
-
-   The traditional BSD macros that correspond directly to POSIX <limits.h>
-   macros don't need to be defined here if <bits/local_lim.h> defines the
-   POSIX limit macro, as the common <sys/param.h> code will define each
-   traditional name to its POSIX name if available.
-
-   This file should define at least:
-
-        EXEC_PAGESIZE
-*/
diff --git a/bits/poll.h b/bits/poll.h
deleted file mode 100644
index 5d114b8ca6..0000000000
--- a/bits/poll.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/* Copyright (C) 1997-2017 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_POLL_H
-# error "Never use <bits/poll.h> directly; include <sys/poll.h> instead."
-#endif
-
-/* Event types that can be polled for.  These bits may be set in `events'
-   to indicate the interesting event types; they will appear in `revents'
-   to indicate the status of the file descriptor.  */
-#define POLLIN		01              /* There is data to read.  */
-#define POLLPRI		02              /* There is urgent data to read.  */
-#define POLLOUT		04              /* Writing now will not block.  */
-
-#if defined __USE_XOPEN || defined __USE_XOPEN2K8
-/* These values are defined in XPG4.2 and later.  */
-# define POLLRDNORM	POLLIN		/* Normal data may be read.  */
-# define POLLRDBAND	POLLPRI		/* Priority data may be read.  */
-# define POLLWRNORM	POLLOUT		/* Writing now will not block.  */
-# define POLLWRBAND	POLLOUT		/* Priority data may be written.  */
-#endif
-
-/* Event types always implicitly polled for.  These bits need not be set in
-   `events', but they will appear in `revents' to indicate the status of
-   the file descriptor.  */
-#define POLLERR         010             /* Error condition.  */
-#define POLLHUP         020             /* Hung up.  */
-#define POLLNVAL        040             /* Invalid polling request.  */
diff --git a/bits/posix_opt.h b/bits/posix_opt.h
deleted file mode 100644
index 54f5a79aa2..0000000000
--- a/bits/posix_opt.h
+++ /dev/null
@@ -1,2 +0,0 @@
-/* This file should define the POSIX options described in <unistd.h>,
-   or leave them undefined, as appropriate.  */
diff --git a/bits/pthreadtypes.h b/bits/pthreadtypes.h
deleted file mode 100644
index 0e26952c96..0000000000
--- a/bits/pthreadtypes.h
+++ /dev/null
@@ -1 +0,0 @@
-/* No thread support.  */
diff --git a/bits/resource.h b/bits/resource.h
deleted file mode 100644
index 5f22fb7e9b..0000000000
--- a/bits/resource.h
+++ /dev/null
@@ -1,191 +0,0 @@
-/* Bit values & structures for resource limits.  4.4 BSD/generic GNU version.
-   Copyright (C) 1994-2017 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_RESOURCE_H
-# error "Never use <bits/resource.h> directly; include <sys/resource.h> instead."
-#endif
-
-#include <bits/types.h>
-
-/* These are the values for 4.4 BSD and GNU.  Earlier BSD systems have a
-   subset of these kinds of resource limit.  In systems where `getrlimit'
-   and `setrlimit' are not system calls, these are the values used by the C
-   library to emulate them.  */
-
-/* Kinds of resource limit.  */
-enum __rlimit_resource
-  {
-    /* Per-process CPU limit, in seconds.  */
-    RLIMIT_CPU,
-#define	RLIMIT_CPU	RLIMIT_CPU
-    /* Largest file that can be created, in bytes.  */
-    RLIMIT_FSIZE,
-#define	RLIMIT_FSIZE	RLIMIT_FSIZE
-    /* Maximum size of data segment, in bytes.  */
-    RLIMIT_DATA,
-#define	RLIMIT_DATA	RLIMIT_DATA
-    /* Maximum size of stack segment, in bytes.  */
-    RLIMIT_STACK,
-#define	RLIMIT_STACK	RLIMIT_STACK
-    /* Largest core file that can be created, in bytes.  */
-    RLIMIT_CORE,
-#define	RLIMIT_CORE	RLIMIT_CORE
-    /* Largest resident set size, in bytes.
-       This affects swapping; processes that are exceeding their
-       resident set size will be more likely to have physical memory
-       taken from them.  */
-    RLIMIT_RSS,
-#define	RLIMIT_RSS	RLIMIT_RSS
-    /* Locked-in-memory address space.  */
-    RLIMIT_MEMLOCK,
-#define	RLIMIT_MEMLOCK	RLIMIT_MEMLOCK
-    /* Number of processes.  */
-    RLIMIT_NPROC,
-#define	RLIMIT_NPROC	RLIMIT_NPROC
-    /* Number of open files.  */
-    RLIMIT_OFILE,
-    RLIMIT_NOFILE = RLIMIT_OFILE, /* Another name for the same thing.  */
-#define	RLIMIT_OFILE	RLIMIT_OFILE
-#define	RLIMIT_NOFILE	RLIMIT_NOFILE
-    /* Maximum size of all socket buffers.  */
-    RLIMIT_SBSIZE,
-#define RLIMIT_SBSIZE	RLIMIT_SBSIZE
-    /* Maximum size in bytes of the process address space.  */
-    RLIMIT_AS,
-    RLIMIT_VMEM = RLIMIT_AS,	/* Another name for the same thing.  */
-#define RLIMIT_AS	RLIMIT_AS
-#define RLIMIT_VMEM	RLIMIT_AS
-
-    RLIMIT_NLIMITS,		/* Number of limit flavors.  */
-    RLIM_NLIMITS = RLIMIT_NLIMITS /* Traditional name for same.  */
-  };
-
-/* Value to indicate that there is no limit.  */
-#ifndef __USE_FILE_OFFSET64
-# define RLIM_INFINITY 0x7fffffff
-#else
-# define RLIM_INFINITY 0x7fffffffffffffffLL
-#endif
-
-#ifdef __USE_LARGEFILE64
-# define RLIM64_INFINITY 0x7fffffffffffffffLL
-#endif
-
-
-/* Type for resource quantity measurement.  */
-#ifndef __USE_FILE_OFFSET64
-typedef __rlim_t rlim_t;
-#else
-typedef __rlim64_t rlim_t;
-#endif
-#ifdef __USE_LARGEFILE64
-typedef __rlim64_t rlim64_t;
-#endif
-
-struct rlimit
-  {
-    /* The current (soft) limit.  */
-    rlim_t rlim_cur;
-    /* The hard limit.  */
-    rlim_t rlim_max;
-  };
-
-#ifdef __USE_LARGEFILE64
-struct rlimit64
-  {
-    /* The current (soft) limit.  */
-    rlim64_t rlim_cur;
-    /* The hard limit.  */
-    rlim64_t rlim_max;
- };
-#endif
-
-/* Whose usage statistics do you want?  */
-enum __rusage_who
-/* The macro definitions are necessary because some programs want
-   to test for operating system features with #ifdef RUSAGE_SELF.
-   In ISO C the reflexive definition is a no-op.  */
-  {
-    /* The calling process.  */
-    RUSAGE_SELF = 0,
-#define RUSAGE_SELF     RUSAGE_SELF
-    /* All of its terminated child processes.  */
-    RUSAGE_CHILDREN = -1
-#define RUSAGE_CHILDREN RUSAGE_CHILDREN
-  };
-
-#include <bits/types/struct_timeval.h>
-
-/* Structure which says how much of each resource has been used.  */
-struct rusage
-  {
-    /* Total amount of user time used.  */
-    struct timeval ru_utime;
-    /* Total amount of system time used.  */
-    struct timeval ru_stime;
-    /* Maximum resident set size (in kilobytes).  */
-    long int ru_maxrss;
-    /* Amount of sharing of text segment memory
-       with other processes (kilobyte-seconds).  */
-    long int ru_ixrss;
-    /* Amount of data segment memory used (kilobyte-seconds).  */
-    long int ru_idrss;
-    /* Amount of stack memory used (kilobyte-seconds).  */
-    long int ru_isrss;
-    /* Number of soft page faults (i.e. those serviced by reclaiming
-       a page from the list of pages awaiting reallocation.  */
-    long int ru_minflt;
-    /* Number of hard page faults (i.e. those that required I/O).  */
-    long int ru_majflt;
-    /* Number of times a process was swapped out of physical memory.  */
-    long int ru_nswap;
-    /* Number of input operations via the file system.  Note: This
-       and `ru_oublock' do not include operations with the cache.  */
-    long int ru_inblock;
-    /* Number of output operations via the file system.  */
-    long int ru_oublock;
-    /* Number of IPC messages sent.  */
-    long int ru_msgsnd;
-    /* Number of IPC messages received.  */
-    long int ru_msgrcv;
-    /* Number of signals delivered.  */
-    long int ru_nsignals;
-    /* Number of voluntary context switches, i.e. because the process
-       gave up the process before it had to (usually to wait for some
-       resource to be available).  */
-    long int ru_nvcsw;
-    /* Number of involuntary context switches, i.e. a higher priority process
-       became runnable or the current process used up its time slice.  */
-    long int ru_nivcsw;
-  };
-
-/* Priority limits.  */
-#define PRIO_MIN        -20     /* Minimum priority a process can have.  */
-#define PRIO_MAX        20      /* Maximum priority a process can have.  */
-
-/* The type of the WHICH argument to `getpriority' and `setpriority',
-   indicating what flavor of entity the WHO argument specifies.  */
-enum __priority_which
-  {
-    PRIO_PROCESS = 0,           /* WHO is a process ID.  */
-#define PRIO_PROCESS PRIO_PROCESS
-    PRIO_PGRP = 1,              /* WHO is a process group ID.  */
-#define PRIO_PGRP PRIO_PGRP
-    PRIO_USER = 2               /* WHO is a user ID.  */
-#define PRIO_USER PRIO_USER
-  };
diff --git a/bits/sched.h b/bits/sched.h
deleted file mode 100644
index c36c569db3..0000000000
--- a/bits/sched.h
+++ /dev/null
@@ -1,151 +0,0 @@
-/* Definitions of constants and data structure for POSIX 1003.1b-1993
-   scheduling interface.
-   Copyright (C) 1996-2017 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 __need_schedparam
-
-#ifndef _SCHED_H
-# error "Never include <bits/sched.h> directly; use <sched.h> instead."
-#endif
-
-
-/* Scheduling algorithms.  */
-#define SCHED_OTHER	0
-#define SCHED_FIFO	1
-#define SCHED_RR	2
-
-/* Data structure to describe a process' schedulability.  */
-struct sched_param
-{
-  int __sched_priority;
-};
-
-#endif	/* need schedparam */
-
-#if !defined __defined_schedparam \
-    && (defined __need_schedparam || defined _SCHED_H)
-# define __defined_schedparam	1
-/* Data structure to describe a process' schedulability.  */
-struct __sched_param
-  {
-    int __sched_priority;
-  };
-# undef __need_schedparam
-#endif
-
-
-#if defined _SCHED_H && !defined __cpu_set_t_defined
-# define __cpu_set_t_defined
-/* Size definition for CPU sets.  */
-# define __CPU_SETSIZE	1024
-# define __NCPUBITS	(8 * sizeof (__cpu_mask))
-
-/* Type for array elements in 'cpu_set_t'.  */
-typedef unsigned long int __cpu_mask;
-
-/* Basic access functions.  */
-# define __CPUELT(cpu)	((cpu) / __NCPUBITS)
-# define __CPUMASK(cpu)	((__cpu_mask) 1 << ((cpu) % __NCPUBITS))
-
-/* Data structure to describe CPU mask.  */
-typedef struct
-{
-  __cpu_mask __bits[__CPU_SETSIZE / __NCPUBITS];
-} cpu_set_t;
-
-/* Access functions for CPU masks.  */
-# if __GNUC_PREREQ (2, 91)
-#  define __CPU_ZERO_S(setsize, cpusetp) \
-  do __builtin_memset (cpusetp, '\0', setsize); while (0)
-# else
-#  define __CPU_ZERO_S(setsize, cpusetp) \
-  do {									      \
-    size_t __i;								      \
-    size_t __imax = (setsize) / sizeof (__cpu_mask);			      \
-    __cpu_mask *__bits = (cpusetp)->__bits;				      \
-    for (__i = 0; __i < __imax; ++__i)					      \
-      __bits[__i] = 0;							      \
-  } while (0)
-# endif
-# define __CPU_SET_S(cpu, setsize, cpusetp) \
-  (__extension__							      \
-   ({ size_t __cpu = (cpu);						      \
-      __cpu < 8 * (setsize)						      \
-      ? (((__cpu_mask *) ((cpusetp)->__bits))[__CPUELT (__cpu)]		      \
-	 |= __CPUMASK (__cpu))						      \
-      : 0; }))
-# define __CPU_CLR_S(cpu, setsize, cpusetp) \
-  (__extension__							      \
-   ({ size_t __cpu = (cpu);						      \
-      __cpu < 8 * (setsize)						      \
-      ? (((__cpu_mask *) ((cpusetp)->__bits))[__CPUELT (__cpu)]		      \
-	 &= ~__CPUMASK (__cpu))						      \
-      : 0; }))
-# define __CPU_ISSET_S(cpu, setsize, cpusetp) \
-  (__extension__							      \
-   ({ size_t __cpu = (cpu);						      \
-      __cpu < 8 * (setsize)						      \
-      ? ((((const __cpu_mask *) ((cpusetp)->__bits))[__CPUELT (__cpu)]      \
-	  & __CPUMASK (__cpu))) != 0					      \
-      : 0; }))
-
-# define __CPU_COUNT_S(setsize, cpusetp) \
-  __sched_cpucount (setsize, cpusetp)
-
-# if __GNUC_PREREQ (2, 91)
-#  define __CPU_EQUAL_S(setsize, cpusetp1, cpusetp2) \
-  (__builtin_memcmp (cpusetp1, cpusetp2, setsize) == 0)
-# else
-#  define __CPU_EQUAL_S(setsize, cpusetp1, cpusetp2) \
-  (__extension__							      \
-   ({ const __cpu_mask *__arr1 = (cpusetp1)->__bits;			      \
-      const __cpu_mask *__arr2 = (cpusetp2)->__bits;			      \
-      size_t __imax = (setsize) / sizeof (__cpu_mask);			      \
-      size_t __i;							      \
-      for (__i = 0; __i < __imax; ++__i)				      \
-	if (__arr1[__i] != __arr2[__i])					      \
-	  break;							      \
-      __i == __imax; }))
-# endif
-
-# define __CPU_OP_S(setsize, destset, srcset1, srcset2, op) \
-  (__extension__							      \
-   ({ cpu_set_t *__dest = (destset);					      \
-      const __cpu_mask *__arr1 = (srcset1)->__bits;			      \
-      const __cpu_mask *__arr2 = (srcset2)->__bits;			      \
-      size_t __imax = (setsize) / sizeof (__cpu_mask);			      \
-      size_t __i;							      \
-      for (__i = 0; __i < __imax; ++__i)				      \
-	((__cpu_mask *) __dest->__bits)[__i] = __arr1[__i] op __arr2[__i];    \
-      __dest; }))
-
-# define __CPU_ALLOC_SIZE(count) \
-  ((((count) + __NCPUBITS - 1) / __NCPUBITS) * sizeof (__cpu_mask))
-# define __CPU_ALLOC(count) __sched_cpualloc (count)
-# define __CPU_FREE(cpuset) __sched_cpufree (cpuset)
-
-__BEGIN_DECLS
-
-extern int __sched_cpucount (size_t __setsize, const cpu_set_t *__setp)
-     __THROW;
-extern cpu_set_t *__sched_cpualloc (size_t __count) __THROW __wur;
-extern void __sched_cpufree (cpu_set_t *__set) __THROW;
-
-__END_DECLS
-
-#endif
diff --git a/bits/select.h b/bits/select.h
deleted file mode 100644
index cb3898ee29..0000000000
--- a/bits/select.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/* Copyright (C) 1997-2017 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_SELECT_H
-# error "Never use <bits/select.h> directly; include <sys/select.h> instead."
-#endif
-
-
-/* We don't use `memset' because this would require a prototype and
-   the array isn't too big.  */
-#define __FD_ZERO(s) \
-  do {									      \
-    unsigned int __i;							      \
-    fd_set *__arr = (s);						      \
-    for (__i = 0; __i < sizeof (fd_set) / sizeof (__fd_mask); ++__i)	      \
-      __FDS_BITS (__arr)[__i] = 0;					      \
-  } while (0)
-#define __FD_SET(d, s) \
-  ((void) (__FDS_BITS (s)[__FD_ELT(d)] |= __FD_MASK(d)))
-#define __FD_CLR(d, s) \
-  ((void) (__FDS_BITS (s)[__FD_ELT(d)] &= ~__FD_MASK(d)))
-#define __FD_ISSET(d, s) \
-  ((__FDS_BITS (s)[__FD_ELT (d)] & __FD_MASK (d)) != 0)
diff --git a/bits/sem.h b/bits/sem.h
deleted file mode 100644
index b7f1a35ddd..0000000000
--- a/bits/sem.h
+++ /dev/null
@@ -1,60 +0,0 @@
-/* Copyright (C) 1995-2017 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_SEM_H
-# error "Never include <bits/sem.h> directly; use <sys/sem.h> instead."
-#endif
-
-#include <sys/types.h>
-
-/* Flags for `semop'.  */
-#define SEM_UNDO	0x1000		/* undo the operation on exit */
-
-/* Commands for `semctl'.  */
-#define GETPID		11		/* get sempid */
-#define GETVAL		12		/* get semval */
-#define GETALL		13		/* get all semval's */
-#define GETNCNT		14		/* get semncnt */
-#define GETZCNT		15		/* get semzcnt */
-#define SETVAL		16		/* set semval */
-#define SETALL		17		/* set all semval's */
-
-
-/* Data structure describing a set of semaphores.  */
-struct semid_ds
-{
-  struct ipc_perm sem_perm;		/* operation permission struct */
-  __time_t sem_otime;			/* last semop() time */
-  __time_t sem_ctime;			/* last time changed by semctl() */
-  unsigned short int sem_nsems;		/* number of semaphores in set */
-};
-
-/* The user should define a union like the following to use it for arguments
-   for `semctl'.
-
-   union semun
-   {
-     int val;				<= value for SETVAL
-     struct semid_ds *buf;		<= buffer for IPC_STAT & IPC_SET
-     unsigned short int *array;		<= array for GETALL & SETALL
-     struct seminfo *__buf;		<= buffer for IPC_INFO
-   };
-
-   Previous versions of this file used to define this union but this is
-   incorrect.  One can test the macro _SEM_SEMUN_UNDEFINED to see whether
-   one must define the union or not.  */
-#define _SEM_SEMUN_UNDEFINED	1
diff --git a/bits/setjmp.h b/bits/setjmp.h
deleted file mode 100644
index 9150d8d764..0000000000
--- a/bits/setjmp.h
+++ /dev/null
@@ -1,7 +0,0 @@
-/* Define the machine-dependent type `jmp_buf'.  Stub version.  */
-
-#ifndef _SETJMP_H
-# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
-#endif
-
-typedef int __jmp_buf[1];
diff --git a/bits/shm.h b/bits/shm.h
deleted file mode 100644
index c9e91551ff..0000000000
--- a/bits/shm.h
+++ /dev/null
@@ -1,56 +0,0 @@
-/* Copyright (C) 1995-2017 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_SHM_H
-# error "Never include <bits/shm.h> directly; use <sys/shm.h> instead."
-#endif
-
-#include <bits/types.h>
-
-/* Flags for `shmat'.  */
-#define SHM_RDONLY	010000		/* attach read-only else read-write */
-#define SHM_RND		020000		/* round attach address to SHMLBA */
-#define SHM_REMAP	040000		/* take-over region on attach */
-
-/* Commands for `shmctl'.  */
-#define SHM_LOCK	11		/* lock segment (root only) */
-#define SHM_UNLOCK	12		/* unlock segment (root only) */
-
-__BEGIN_DECLS
-
-/* Segment low boundary address multiple.  */
-#define SHMLBA		(__getpagesize ())
-extern int __getpagesize (void) __THROW __attribute__ ((__const__));
-
-
-/* Type to count number of attaches.  */
-typedef unsigned short int shmatt_t;
-
-/* Data structure describing a shared memory segment.  */
-struct shmid_ds
-  {
-    struct ipc_perm shm_perm;		/* operation permission struct */
-    int shm_segsz;			/* size of segment in bytes */
-    __time_t shm_atime;			/* time of last shmat() */
-    __time_t shm_dtime;			/* time of last shmdt() */
-    __time_t shm_ctime;			/* time of last change by shmctl() */
-    __pid_t shm_cpid;			/* pid of creator */
-    __pid_t shm_lpid;			/* pid of last shmop */
-    shmatt_t shm_nattch;		/* number of current attaches */
-  };
-
-__END_DECLS
diff --git a/bits/sigaction.h b/bits/sigaction.h
deleted file mode 100644
index f6c739fea0..0000000000
--- a/bits/sigaction.h
+++ /dev/null
@@ -1,79 +0,0 @@
-/* Copyright (C) 1991-2017 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 _SIGNAL_H
-# error "Never include <bits/sigaction.h> directly; use <signal.h> instead."
-#endif
-
-/* These definitions match those used by the 4.4 BSD kernel.
-   If the operating system has a `sigaction' system call that correctly
-   implements the POSIX.1 behavior, there should be a system-dependent
-   version of this file that defines `struct sigaction' and the `SA_*'
-   constants appropriately.  */
-
-/* Structure describing the action to be taken when a signal arrives.  */
-struct sigaction
-  {
-    /* Signal handler.  */
-#ifdef __USE_POSIX199309
-    union
-      {
-	/* Used if SA_SIGINFO is not set.  */
-	__sighandler_t sa_handler;
-	/* Used if SA_SIGINFO is set.  */
-	void (*sa_sigaction) (int, siginfo_t *, void *);
-      }
-    __sigaction_handler;
-# define sa_handler	__sigaction_handler.sa_handler
-# define sa_sigaction	__sigaction_handler.sa_sigaction
-#else
-    __sighandler_t sa_handler;
-#endif
-
-    /* Additional set of signals to be blocked.  */
-    __sigset_t sa_mask;
-
-    /* Special flags.  */
-    int sa_flags;
-  };
-
-/* Bits in `sa_flags'.  */
-#if defined __USE_UNIX98 || defined __USE_MISC
-# define SA_ONSTACK	0x0001	/* Take signal on signal stack.  */
-#endif
-#if defined __USE_UNIX98 || defined __USE_XOPEN2K8
-# define SA_RESTART	0x0002	/* Restart syscall on signal return.  */
-# define SA_NODEFER	0x0010	/* Don't automatically block the signal when
-				    its handler is being executed.  */
-# define SA_RESETHAND	0x0004	/* Reset to SIG_DFL on entry to handler.  */
-#endif
-#define	SA_NOCLDSTOP	0x0008	/* Don't send SIGCHLD when children stop.  */
-
-#ifdef __USE_MISC
-# define SA_INTERRUPT	0	/* Historical no-op ("not SA_RESTART").  */
-
-/* Some aliases for the SA_ constants.  */
-# define SA_NOMASK    SA_NODEFER
-# define SA_ONESHOT   SA_RESETHAND
-# define SA_STACK     SA_ONSTACK
-#endif
-
-
-/* Values for the HOW argument to `sigprocmask'.  */
-#define	SIG_BLOCK	1	/* Block signals.  */
-#define	SIG_UNBLOCK	2	/* Unblock signals.  */
-#define	SIG_SETMASK	3	/* Set the set of blocked signals.  */
diff --git a/bits/sigcontext.h b/bits/sigcontext.h
deleted file mode 100644
index 3ae9607fe3..0000000000
--- a/bits/sigcontext.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/* Structure describing state saved while handling a signal.  Stub version.
-   Copyright (C) 1991-2017 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 _BITS_SIGCONTEXT_H
-#define _BITS_SIGCONTEXT_H 1
-
-#if !defined _SIGNAL_H && !defined _SYS_UCONTEXT_H
-# error "Never use <bits/sigcontext.h> directly; include <signal.h> instead."
-#endif
-
-/* State of this thread when the signal was taken.  */
-struct sigcontext
-  {
-    int sc_onstack;
-    __sigset_t sc_mask;
-
-    /* Registers and such.  */
-  };
-
-/* Signal subcodes should be defined here.  */
-
-#endif /* bits/sigcontext.h */
diff --git a/bits/sigevent-consts.h b/bits/sigevent-consts.h
deleted file mode 100644
index f5940e00ea..0000000000
--- a/bits/sigevent-consts.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/* sigevent constants.  Stub version.
-   Copyright (C) 1997-2017 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 _BITS_SIGEVENT_CONSTS_H
-#define _BITS_SIGEVENT_CONSTS_H 1
-
-#if !defined _SIGNAL_H && !defined _AIO_H
-#error "Don't include <bits/sigevent-consts.h> directly; use <signal.h> instead."
-#endif
-
-/* `sigev_notify' values.  */
-enum
-{
-  SIGEV_SIGNAL = 0,		/* Notify via signal.  */
-# define SIGEV_SIGNAL	SIGEV_SIGNAL
-  SIGEV_NONE,			/* Other notification: meaningless.  */
-# define SIGEV_NONE	SIGEV_NONE
-  SIGEV_THREAD			/* Deliver via thread creation.  */
-# define SIGEV_THREAD	SIGEV_THREAD
-};
-
-#endif
diff --git a/bits/siginfo-consts.h b/bits/siginfo-consts.h
deleted file mode 100644
index a58ac4bdb7..0000000000
--- a/bits/siginfo-consts.h
+++ /dev/null
@@ -1,150 +0,0 @@
-/* siginfo_t constants.  Stub version.
-   Copyright (C) 1997-2017 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 _BITS_SIGINFO_CONSTS_H
-#define _BITS_SIGINFO_CONSTS_H 1
-
-/* Values for `si_code'.  Positive values are reserved for kernel-generated
-   signals.  */
-enum
-{
-  SI_ASYNCIO = -4,		/* Sent by AIO completion.  */
-# define SI_ASYNCIO	SI_ASYNCIO
-  SI_MESGQ,			/* Sent by real time mesq state change.  */
-# define SI_MESGQ	SI_MESGQ
-  SI_TIMER,			/* Sent by timer expiration.  */
-# define SI_TIMER	SI_TIMER
-  SI_QUEUE,			/* Sent by sigqueue.  */
-# define SI_QUEUE	SI_QUEUE
-  SI_USER			/* Sent by kill, sigsend, raise.  */
-# define SI_USER	SI_USER
-};
-
-
-# if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8
-/* `si_code' values for SIGILL signal.  */
-enum
-{
-  ILL_ILLOPC = 1,		/* Illegal opcode.  */
-#  define ILL_ILLOPC	ILL_ILLOPC
-  ILL_ILLOPN,			/* Illegal operand.  */
-#  define ILL_ILLOPN	ILL_ILLOPN
-  ILL_ILLADR,			/* Illegal addressing mode.  */
-#  define ILL_ILLADR	ILL_ILLADR
-  ILL_ILLTRP,			/* Illegal trap. */
-#  define ILL_ILLTRP	ILL_ILLTRP
-  ILL_PRVOPC,			/* Privileged opcode.  */
-#  define ILL_PRVOPC	ILL_PRVOPC
-  ILL_PRVREG,			/* Privileged register.  */
-#  define ILL_PRVREG	ILL_PRVREG
-  ILL_COPROC,			/* Coprocessor error.  */
-#  define ILL_COPROC	ILL_COPROC
-  ILL_BADSTK			/* Internal stack error.  */
-#  define ILL_BADSTK	ILL_BADSTK
-};
-
-/* `si_code' values for SIGFPE signal.  */
-enum
-{
-  FPE_INTDIV = 1,		/* Integer divide by zero.  */
-#  define FPE_INTDIV	FPE_INTDIV
-  FPE_INTOVF,			/* Integer overflow.  */
-#  define FPE_INTOVF	FPE_INTOVF
-  FPE_FLTDIV,			/* Floating point divide by zero.  */
-#  define FPE_FLTDIV	FPE_FLTDIV
-  FPE_FLTOVF,			/* Floating point overflow.  */
-#  define FPE_FLTOVF	FPE_FLTOVF
-  FPE_FLTUND,			/* Floating point underflow.  */
-#  define FPE_FLTUND	FPE_FLTUND
-  FPE_FLTRES,			/* Floating point inexact result.  */
-#  define FPE_FLTRES	FPE_FLTRES
-  FPE_FLTINV,			/* Floating point invalid operation.  */
-#  define FPE_FLTINV	FPE_FLTINV
-  FPE_FLTSUB			/* Subscript out of range.  */
-#  define FPE_FLTSUB	FPE_FLTSUB
-};
-
-/* `si_code' values for SIGSEGV signal.  */
-enum
-{
-  SEGV_MAPERR = 1,		/* Address not mapped to object.  */
-#  define SEGV_MAPERR	SEGV_MAPERR
-  SEGV_ACCERR			/* Invalid permissions for mapped object.  */
-#  define SEGV_ACCERR	SEGV_ACCERR
-};
-
-/* `si_code' values for SIGBUS signal.  */
-enum
-{
-  BUS_ADRALN = 1,		/* Invalid address alignment.  */
-#  define BUS_ADRALN	BUS_ADRALN
-  BUS_ADRERR,			/* Non-existant physical address.  */
-#  define BUS_ADRERR	BUS_ADRERR
-  BUS_OBJERR			/* Object specific hardware error.  */
-#  define BUS_OBJERR	BUS_OBJERR
-};
-# endif
-
-# ifdef __USE_XOPEN_EXTENDED
-/* `si_code' values for SIGTRAP signal.  */
-enum
-{
-  TRAP_BRKPT = 1,		/* Process breakpoint.  */
-#  define TRAP_BRKPT	TRAP_BRKPT
-  TRAP_TRACE			/* Process trace trap.  */
-#  define TRAP_TRACE	TRAP_TRACE
-};
-# endif
-
-# if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8
-/* `si_code' values for SIGCHLD signal.  */
-enum
-{
-  CLD_EXITED = 1,		/* Child has exited.  */
-#  define CLD_EXITED	CLD_EXITED
-  CLD_KILLED,			/* Child was killed.  */
-#  define CLD_KILLED	CLD_KILLED
-  CLD_DUMPED,			/* Child terminated abnormally.  */
-#  define CLD_DUMPED	CLD_DUMPED
-  CLD_TRAPPED,			/* Traced child has trapped.  */
-#  define CLD_TRAPPED	CLD_TRAPPED
-  CLD_STOPPED,			/* Child has stopped.  */
-#  define CLD_STOPPED	CLD_STOPPED
-  CLD_CONTINUED			/* Stopped child has continued.  */
-#  define CLD_CONTINUED	CLD_CONTINUED
-};
-
-/* `si_code' values for SIGPOLL signal.  */
-enum
-{
-  POLL_IN = 1,			/* Data input available.  */
-#  define POLL_IN	POLL_IN
-  POLL_OUT,			/* Output buffers available.  */
-#  define POLL_OUT	POLL_OUT
-  POLL_MSG,			/* Input message available.   */
-#  define POLL_MSG	POLL_MSG
-  POLL_ERR,			/* I/O error.  */
-#  define POLL_ERR	POLL_ERR
-  POLL_PRI,			/* High priority input available.  */
-#  define POLL_PRI	POLL_PRI
-  POLL_HUP			/* Device disconnected.  */
-#  define POLL_HUP	POLL_HUP
-};
-# endif
-
-#endif
diff --git a/bits/signum.h b/bits/signum.h
deleted file mode 100644
index cfbc7ac8bb..0000000000
--- a/bits/signum.h
+++ /dev/null
@@ -1,84 +0,0 @@
-/* Signal number constants.  Generic version.
-   Copyright (C) 1991-2017 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/>.  */
-
-#ifdef	_SIGNAL_H
-
-/* Fake signal functions.  */
-
-#define	SIG_ERR	 ((__sighandler_t) -1)	/* Error return.  */
-#define	SIG_DFL	 ((__sighandler_t)  0)	/* Default action.  */
-#define	SIG_IGN	 ((__sighandler_t)  1)	/* Ignore signal.  */
-
-#ifdef __USE_XOPEN
-# define SIG_HOLD ((__sighandler_t)  2)	/* Add signal to hold mask.  */
-#endif
-
-/* We define here all the signal names listed in POSIX (1003.1-2008);
-   as of 1003.1-2013, no additional signals have been added by POSIX.
-   We also define here signal names that historically exist in every
-   real-world POSIX variant (e.g. SIGWINCH).
-
-   Signals in the 1-15 range are defined with their historical numbers.
-   For other signals, we use the BSD numbers.  */
-
-/* ISO C99 signals.  */
-#define	SIGINT		2	/* Interactive attention signal.  */
-#define	SIGILL		4	/* Illegal instruction.  */
-#define	SIGABRT		6	/* Abnormal termination.  */
-#define	SIGFPE		8	/* Erroneous arithmetic operation.  */
-#define	SIGSEGV		11	/* Invalid access to storage.  */
-#define	SIGTERM		15	/* Termination request.  */
-
-/* Historical signals specified by POSIX. */
-#define	SIGHUP		1	/* Hangup.  */
-#define	SIGQUIT		3	/* Quit.  */
-#define	SIGTRAP		5	/* Trace/breakpoint trap.  */
-#define	SIGKILL		9	/* Killed.  */
-#define SIGBUS		10	/* Bus error.  */
-#define	SIGSYS		12	/* Bad system call.  */
-#define	SIGPIPE		13	/* Broken pipe.  */
-#define	SIGALRM		14	/* Alarm clock.  */
-
-/* New(er) POSIX signals (1003.1-2008, 1003.1-2013).  */
-#define	SIGURG		16 /* High bandwidth data is available at a socket.  */
-#define	SIGSTOP		17	/* Stopped (signal).  */
-#define	SIGTSTP		18	/* Stopped.  */
-#define	SIGCONT		19	/* Continued.  */
-#define	SIGCHLD		20	/* Child terminated or stopped.  */
-#define	SIGTTIN		21	/* Background read from control terminal.  */
-#define	SIGTTOU		22	/* Background write to control terminal.  */
-#define	SIGPOLL 	23	/* Pollable event occurred (System V).  */
-#define	SIGIO		SIGPOLL /* I/O now possible (4.2 BSD).  */
-#define	SIGXCPU		24	/* CPU time limit exceeded.  */
-#define	SIGXFSZ		25	/* File size limit exceeded.  */
-#define	SIGVTALRM	26	/* Virtual timer expired.  */
-#define	SIGPROF		27	/* Profiling timer expired.  */
-#define	SIGUSR1		30	/* User-defined signal 1.  */
-#define	SIGUSR2		31	/* User-defined signal 2.  */
-
-/* Nonstandard signals found in all modern POSIX systems
-   (including both BSD and Linux).  */
-#define	SIGWINCH	28	/* Window size change (4.3 BSD, Sun).  */
-
-#define	_NSIG		32
-
-/* Archaic names for compatibility. */
-#define	SIGIOT		SIGABRT	/* IOT instruction, abort() on a PDP-11.  */
-#define	SIGCLD		SIGCHLD	/* Old System V name */
-
-#endif	/* <signal.h> included.  */
diff --git a/bits/sigstack.h b/bits/sigstack.h
deleted file mode 100644
index 3127c325e5..0000000000
--- a/bits/sigstack.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/* sigstack, sigaltstack definitions.
-   Copyright (C) 1998-2017 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 _BITS_SIGSTACK_H
-#define _BITS_SIGSTACK_H 1
-
-#if !defined _SIGNAL_H && !defined _SYS_UCONTEXT_H
-# error "Never include this file directly.  Use <signal.h> instead"
-#endif
-
-/* Minumum stack size for a signal handler.  */
-#define MINSIGSTKSZ	8192
-
-/* System default stack size.  */
-#define SIGSTKSZ	(MINSIGSTKSZ + 32768)
-
-#endif /* bits/sigstack.h */
diff --git a/bits/sigthread.h b/bits/sigthread.h
deleted file mode 100644
index 29e578d514..0000000000
--- a/bits/sigthread.h
+++ /dev/null
@@ -1,34 +0,0 @@
-/* Signal handling function for threaded programs.  Generic version.
-   Copyright (C) 2000-2017 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 _BITS_SIGTHREAD_H
-#define _BITS_SIGTHREAD_H	1
-
-#if !defined _SIGNAL_H && !defined _PTHREAD_H
-# error "Never include this file directly.  Use <signal.h> instead"
-#endif
-
-/* Modify the signal mask for the calling thread.  The arguments have the
-   same meaning as for sigprocmask; in fact, this and sigprocmask might be
-   the same function.  We declare this the same on all platforms, since it
-   doesn't use any thread-related types.  */
-extern int pthread_sigmask (int __how, const __sigset_t *__newmask,
-			    __sigset_t *__oldmask) __THROW;
-
-
-#endif	/* bits/sigthread.h */
diff --git a/bits/sockaddr.h b/bits/sockaddr.h
deleted file mode 100644
index db3046a218..0000000000
--- a/bits/sockaddr.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/* Definition of struct sockaddr_* common members and sizes, generic version.
-   Copyright (C) 1995-2017 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/>.  */
-
-/*
- * Never include this file directly; use <sys/socket.h> instead.
- */
-
-#ifndef _BITS_SOCKADDR_H
-#define _BITS_SOCKADDR_H	1
-
-
-/* POSIX.1g specifies this type name for the `sa_family' member.  */
-typedef unsigned short int sa_family_t;
-
-/* This macro is used to declare the initial common members
-   of the data types used for socket addresses, `struct sockaddr',
-   `struct sockaddr_in', `struct sockaddr_un', etc.  */
-
-#define	__SOCKADDR_COMMON(sa_prefix) \
-  sa_family_t sa_prefix##family
-
-#define __SOCKADDR_COMMON_SIZE	(sizeof (unsigned short int))
-
-/* Size of struct sockaddr_storage.  */
-#define _SS_SIZE 128
-
-#endif	/* bits/sockaddr.h */
diff --git a/bits/socket.h b/bits/socket.h
deleted file mode 100644
index b527f9c129..0000000000
--- a/bits/socket.h
+++ /dev/null
@@ -1,358 +0,0 @@
-/* System-specific socket constants and types.  4.4 BSD version.
-   Copyright (C) 1991-2017 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; see the file COPYING.LIB.  If
-   not, see <http://www.gnu.org/licenses/>.  */
-
-#ifndef __BITS_SOCKET_H
-#define __BITS_SOCKET_H	1
-
-#ifndef _SYS_SOCKET_H
-# error "Never include <bits/socket.h> directly; use <sys/socket.h> instead."
-#endif
-
-#define	__need_size_t
-#define __need_NULL
-#include <stddef.h>
-
-#include <limits.h>		/* XXX Is this allowed?  */
-#include <bits/types.h>
-
-/* Type for length arguments in socket calls.  */
-#ifndef __socklen_t_defined
-typedef __socklen_t socklen_t;
-# define __socklen_t_defined
-#endif
-
-
-/* Types of sockets.  */
-enum __socket_type
-{
-  SOCK_STREAM = 1,		/* Sequenced, reliable, connection-based
-				   byte streams.  */
-#define SOCK_STREAM SOCK_STREAM
-  SOCK_DGRAM = 2,		/* Connectionless, unreliable datagrams
-				   of fixed maximum length.  */
-#define SOCK_DGRAM SOCK_DGRAM
-  SOCK_RAW = 3,			/* Raw protocol interface.  */
-#define SOCK_RAW SOCK_RAW
-  SOCK_RDM = 4,			/* Reliably-delivered messages.  */
-#define SOCK_RDM SOCK_RDM
-  SOCK_SEQPACKET = 5,		/* Sequenced, reliable, connection-based,
-				   datagrams of fixed maximum length.  */
-#define SOCK_SEQPACKET SOCK_SEQPACKET
-
-#define SOCK_MAX (SOCK_SEQPACKET + 1)
-  /* Mask which covers at least up to SOCK_MASK-1.
-     The remaining bits are used as flags. */
-#define SOCK_TYPE_MASK 0xf
-
-  /* Flags to be ORed into the type parameter of socket and socketpair and
-     used for the flags parameter of accept4.  */
-
-  SOCK_CLOEXEC = 0x10000000,	/* Atomically set close-on-exec flag for the
-				   new descriptor(s).  */
-#define SOCK_CLOEXEC SOCK_CLOEXEC
-
-  SOCK_NONBLOCK = 0x20000000	/* Atomically mark descriptor(s) as
-				   non-blocking.  */
-#define SOCK_NONBLOCK SOCK_NONBLOCK
-};
-
-/* Protocol families.  */
-#define	PF_UNSPEC	0	/* Unspecified.  */
-#define	PF_LOCAL	1	/* Local to host (pipes and file-domain).  */
-#define	PF_UNIX		PF_LOCAL /* Old BSD name for PF_LOCAL.  */
-#define	PF_FILE		PF_LOCAL /* POSIX name for PF_LOCAL.  */
-#define	PF_INET		2	/* IP protocol family.  */
-#define	PF_IMPLINK	3	/* ARPAnet IMP protocol.  */
-#define	PF_PUP		4	/* PUP protocols.  */
-#define	PF_CHAOS	5	/* MIT Chaos protocols.  */
-#define	PF_NS		6	/* Xerox NS protocols.  */
-#define	PF_ISO		7	/* ISO protocols.  */
-#define	PF_OSI		PF_ISO
-#define	PF_ECMA		8	/* ECMA protocols.  */
-#define	PF_DATAKIT	9	/* AT&T Datakit protocols.  */
-#define	PF_CCITT	10	/* CCITT protocols (X.25 et al).  */
-#define	PF_SNA		11	/* IBM SNA protocol.  */
-#define	PF_DECnet	12	/* DECnet protocols.  */
-#define	PF_DLI		13	/* Direct data link interface.  */
-#define	PF_LAT		14	/* DEC Local Area Transport protocol.  */
-#define	PF_HYLINK	15	/* NSC Hyperchannel protocol.  */
-#define	PF_APPLETALK	16	/* Don't use this.  */
-#define	PF_ROUTE	17	/* Internal Routing Protocol.  */
-#define	PF_LINK		18	/* Link layer interface.  */
-#define	PF_XTP		19	/* eXpress Transfer Protocol (no AF).  */
-#define	PF_COIP		20	/* Connection-oriented IP, aka ST II.  */
-#define	PF_CNT		21	/* Computer Network Technology.  */
-#define PF_RTIP		22	/* Help Identify RTIP packets.  **/
-#define	PF_IPX		23	/* Novell Internet Protocol.  */
-#define	PF_SIP		24	/* Simple Internet Protocol.  */
-#define PF_PIP		25	/* Help Identify PIP packets.  */
-#define PF_INET6	26	/* IP version 6.  */
-#define	PF_MAX		27
-
-/* Address families.  */
-#define	AF_UNSPEC	PF_UNSPEC
-#define	AF_LOCAL	PF_LOCAL
-#define	AF_UNIX		PF_UNIX
-#define	AF_FILE		PF_FILE
-#define	AF_INET		PF_INET
-#define	AF_IMPLINK	PF_IMPLINK
-#define	AF_PUP		PF_PUP
-#define	AF_CHAOS	PF_CHAOS
-#define	AF_NS		PF_NS
-#define	AF_ISO		PF_ISO
-#define	AF_OSI		PF_OSI
-#define	AF_ECMA		PF_ECMA
-#define	AF_DATAKIT	PF_DATAKIT
-#define	AF_CCITT	PF_CCITT
-#define	AF_SNA		PF_SNA
-#define	AF_DECnet	PF_DECnet
-#define	AF_DLI		PF_DLI
-#define	AF_LAT		PF_LAT
-#define	AF_HYLINK	PF_HYLINK
-#define	AF_APPLETALK	PF_APPLETALK
-#define	AF_ROUTE	PF_ROUTE
-#define	AF_LINK		PF_LINK
-#define	pseudo_AF_XTP	PF_XTP
-#define	AF_COIP		PF_COIP
-#define	AF_CNT		PF_CNT
-#define pseudo_AF_RTIP	PF_RTIP
-#define	AF_IPX		PF_IPX
-#define	AF_SIP		PF_SIP
-#define pseudo_AF_PIP	PF_PIP
-#define AF_INET6	PF_INET6
-#define	AF_MAX		PF_MAX
-
-/* Maximum queue length specifiable by listen.  */
-#define SOMAXCONN	128	/* 5 on the origional 4.4 BSD.  */
-
-/* Get the definition of the macro to define the common sockaddr members.  */
-#include <bits/sockaddr.h>
-
-/* Structure describing a generic socket address.  */
-struct sockaddr
-  {
-    __SOCKADDR_COMMON (sa_);	/* Common data: address family and length.  */
-    char sa_data[14];		/* Address data.  */
-  };
-
-
-/* Structure large enough to hold any socket address (with the historical
-   exception of AF_UNIX).  */
-#if ULONG_MAX > 0xffffffff
-# define __ss_aligntype	__uint64_t
-#else
-# define __ss_aligntype	__uint32_t
-#endif
-#define _SS_PADSIZE \
-  (_SS_SIZE - __SOCKADDR_COMMON_SIZE - sizeof (__ss_aligntype))
-
-struct sockaddr_storage
-  {
-    __SOCKADDR_COMMON (ss_);	/* Address family, etc.  */
-    char __ss_padding[_SS_PADSIZE];
-    __ss_aligntype __ss_align;	/* Force desired alignment.  */
-  };
-
-
-/* Bits in the FLAGS argument to `send', `recv', et al.  */
-enum
-  {
-    MSG_OOB		= 0x01,	/* Process out-of-band data.  */
-#define MSG_OOB MSG_OOB
-    MSG_PEEK		= 0x02,	/* Peek at incoming messages.  */
-#define MSG_PEEK MSG_PEEK
-    MSG_DONTROUTE	= 0x04,	/* Don't use local routing.  */
-#define MSG_DONTROUTE MSG_DONTROUTE
-    MSG_EOR		= 0x08,	/* Data completes record.  */
-#define MSG_EOR MSG_EOR
-    MSG_TRUNC		= 0x10,	/* Data discarded before delivery.  */
-#define MSG_TRUNC MSG_TRUNC
-    MSG_CTRUNC		= 0x20,	/* Control data lost before delivery.  */
-#define MSG_CTRUNC MSG_CTRUNC
-    MSG_WAITALL		= 0x40,	/* Wait for full request or error.  */
-#define MSG_WAITALL MSG_WAITALL
-    MSG_DONTWAIT	= 0x80,	/* This message should be nonblocking.  */
-#define MSG_DONTWAIT MSG_DONTWAIT
-    MSG_NOSIGNAL	= 0x0400	/* Do not generate SIGPIPE on EPIPE.  */
-#define MSG_NOSIGNAL MSG_NOSIGNAL
-  };
-
-
-/* Structure describing messages sent by
-   `sendmsg' and received by `recvmsg'.  */
-struct msghdr
-  {
-    void *msg_name;		/* Address to send to/receive from.  */
-    socklen_t msg_namelen;	/* Length of address data.  */
-
-    struct iovec *msg_iov;	/* Vector of data to send/receive into.  */
-    int msg_iovlen;		/* Number of elements in the vector.  */
-
-    void *msg_control;		/* Ancillary data (eg BSD filedesc passing). */
-    socklen_t msg_controllen;	/* Ancillary data buffer length.  */
-
-    int msg_flags;		/* Flags in received message.  */
-  };
-
-/* Structure used for storage of ancillary data object information.  */
-struct cmsghdr
-  {
-    socklen_t cmsg_len;		/* Length of data in cmsg_data plus length
-				   of cmsghdr structure.  */
-    int cmsg_level;		/* Originating protocol.  */
-    int cmsg_type;		/* Protocol specific type.  */
-#if __glibc_c99_flexarr_available
-    __extension__ unsigned char __cmsg_data __flexarr; /* Ancillary data.  */
-#endif
-  };
-
-/* Ancillary data object manipulation macros.  */
-#if __glibc_c99_flexarr_available
-# define CMSG_DATA(cmsg) ((cmsg)->__cmsg_data)
-#else
-# define CMSG_DATA(cmsg) ((unsigned char *) ((struct cmsghdr *) (cmsg) + 1))
-#endif
-
-#define CMSG_NXTHDR(mhdr, cmsg) __cmsg_nxthdr (mhdr, cmsg)
-
-#define CMSG_FIRSTHDR(mhdr) \
-  ((size_t) (mhdr)->msg_controllen >= sizeof (struct cmsghdr)		      \
-   ? (struct cmsghdr *) (mhdr)->msg_control : (struct cmsghdr *) NULL)
-
-#define CMSG_ALIGN(len) (((len) + sizeof (size_t) - 1) \
-			   & (size_t) ~(sizeof (size_t) - 1))
-#define CMSG_SPACE(len) (CMSG_ALIGN (len) \
-			 + CMSG_ALIGN (sizeof (struct cmsghdr)))
-#define CMSG_LEN(len)   (CMSG_ALIGN (sizeof (struct cmsghdr)) + (len))
-
-extern struct cmsghdr *__cmsg_nxthdr (struct msghdr *__mhdr,
-				      struct cmsghdr *__cmsg) __THROW;
-#ifdef __USE_EXTERN_INLINES
-# ifndef _EXTERN_INLINE
-#  define _EXTERN_INLINE __extern_inline
-# endif
-_EXTERN_INLINE struct cmsghdr *
-__NTH (__cmsg_nxthdr (struct msghdr *__mhdr, struct cmsghdr *__cmsg))
-{
-  if ((size_t) __cmsg->cmsg_len < sizeof (struct cmsghdr))
-    /* The kernel header does this so there may be a reason.  */
-    return NULL;
-
-  __cmsg = (struct cmsghdr *) ((unsigned char *) __cmsg
-			       + CMSG_ALIGN (__cmsg->cmsg_len));
-  if ((unsigned char *) (__cmsg + 1) > ((unsigned char *) __mhdr->msg_control
-					+ __mhdr->msg_controllen)
-      || ((unsigned char *) __cmsg + CMSG_ALIGN (__cmsg->cmsg_len)
-	  > ((unsigned char *) __mhdr->msg_control + __mhdr->msg_controllen)))
-    /* No more entries.  */
-    return NULL;
-  return __cmsg;
-}
-#endif	/* Use `extern inline'.  */
-
-/* Socket level message types.  */
-enum
-  {
-    SCM_RIGHTS = 0x01,		/* Access rights (array of int).  */
-#define SCM_RIGHTS SCM_RIGHTS
-    SCM_TIMESTAMP = 0x02,	/* Timestamp (struct timeval).  */
-#define SCM_TIMESTAMP SCM_TIMESTAMP
-    SCM_CREDS = 0x03		/* Process creds (struct cmsgcred).  */
-#define SCM_CREDS SCM_CREDS
-  };
-
-/* Unfortunately, BSD practice dictates this structure be of fixed size.
-   If there are more than CMGROUP_MAX groups, the list is truncated.
-   (On GNU systems, the `cmcred_euid' field is just the first in the
-   list of effective UIDs.)  */
-#define CMGROUP_MAX	16
-
-/* Structure delivered by SCM_CREDS.  This describes the identity of the
-   sender of the data simultaneously received on the socket.  By BSD
-   convention, this is included only when a sender on a AF_LOCAL socket
-   sends cmsg data of this type and size; the sender's structure is
-   ignored, and the system fills in the various IDs of the sender process.  */
-struct cmsgcred
-  {
-    __pid_t cmcred_pid;
-    __uid_t cmcred_uid;
-    __uid_t cmcred_euid;
-    __gid_t cmcred_gid;
-    int cmcred_ngroups;
-    __gid_t cmcred_groups[CMGROUP_MAX];
-  };
-
-/* Protocol number used to manipulate socket-level options
-   with `getsockopt' and `setsockopt'.  */
-#define	SOL_SOCKET	0xffff
-
-/* Socket-level options for `getsockopt' and `setsockopt'.  */
-enum
-  {
-    SO_DEBUG = 0x0001,		/* Record debugging information.  */
-#define SO_DEBUG SO_DEBUG
-    SO_ACCEPTCONN = 0x0002,	/* Accept connections on socket.  */
-#define SO_ACCEPTCONN SO_ACCEPTCONN
-    SO_REUSEADDR = 0x0004,	/* Allow reuse of local addresses.  */
-#define SO_REUSEADDR SO_REUSEADDR
-    SO_KEEPALIVE = 0x0008,	/* Keep connections alive and send
-				   SIGPIPE when they die.  */
-#define SO_KEEPALIVE SO_KEEPALIVE
-    SO_DONTROUTE = 0x0010,	/* Don't do local routing.  */
-#define SO_DONTROUTE SO_DONTROUTE
-    SO_BROADCAST = 0x0020,	/* Allow transmission of
-				   broadcast messages.  */
-#define SO_BROADCAST SO_BROADCAST
-    SO_USELOOPBACK = 0x0040,	/* Use the software loopback to avoid
-				   hardware use when possible.  */
-#define SO_USELOOPBACK SO_USELOOPBACK
-    SO_LINGER = 0x0080,		/* Block on close of a reliable
-				   socket to transmit pending data.  */
-#define SO_LINGER SO_LINGER
-    SO_OOBINLINE = 0x0100,	/* Receive out-of-band data in-band.  */
-#define SO_OOBINLINE SO_OOBINLINE
-    SO_REUSEPORT = 0x0200,	/* Allow local address and port reuse.  */
-#define SO_REUSEPORT SO_REUSEPORT
-    SO_SNDBUF = 0x1001,		/* Send buffer size.  */
-#define SO_SNDBUF SO_SNDBUF
-    SO_RCVBUF = 0x1002,		/* Receive buffer.  */
-#define SO_RCVBUF SO_RCVBUF
-    SO_SNDLOWAT = 0x1003,	/* Send low-water mark.  */
-#define SO_SNDLOWAT SO_SNDLOWAT
-    SO_RCVLOWAT = 0x1004,	/* Receive low-water mark.  */
-#define SO_RCVLOWAT SO_RCVLOWAT
-    SO_SNDTIMEO = 0x1005,	/* Send timeout.  */
-#define SO_SNDTIMEO SO_SNDTIMEO
-    SO_RCVTIMEO = 0x1006,	/* Receive timeout.  */
-#define SO_RCVTIMEO SO_RCVTIMEO
-    SO_ERROR = 0x1007,		/* Get and clear error status.  */
-#define SO_ERROR SO_ERROR
-    SO_STYLE = 0x1008,		/* Get socket connection style.  */
-#define SO_STYLE SO_STYLE
-    SO_TYPE = SO_STYLE		/* Compatible name for SO_STYLE.  */
-#define SO_TYPE SO_TYPE
-  };
-
-/* Structure used to manipulate the SO_LINGER option.  */
-struct linger
-  {
-    int l_onoff;		/* Nonzero to linger on close.  */
-    int l_linger;		/* Time to linger.  */
-  };
-
-#endif	/* bits/socket.h */
diff --git a/bits/ss_flags.h b/bits/ss_flags.h
deleted file mode 100644
index fa3836c122..0000000000
--- a/bits/ss_flags.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/* ss_flags values for stack_t.
-   Copyright (C) 1998-2017 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 _BITS_SS_FLAGS_H
-#define _BITS_SS_FLAGS_H 1
-
-#if !defined _SIGNAL_H && !defined _SYS_UCONTEXT_H
-# error "Never include this file directly.  Use <signal.h> instead"
-#endif
-
-/* Possible values for `ss_flags.'.  */
-enum
-{
-  SS_ONSTACK = 0x0001,
-#define SS_ONSTACK	SS_ONSTACK
-  SS_DISABLE = 0x0004
-#define SS_DISABLE	SS_DISABLE
-};
-
-#endif /* bits/ss_flags.h */
diff --git a/bits/stat.h b/bits/stat.h
deleted file mode 100644
index 298867f217..0000000000
--- a/bits/stat.h
+++ /dev/null
@@ -1,103 +0,0 @@
-/* Copyright (C) 1992-2017 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/>.  */
-
-#if !defined _SYS_STAT_H && !defined _FCNTL_H
-# error "Never include <bits/stat.h> directly; use <sys/stat.h> instead."
-#endif
-
-#ifndef _BITS_STAT_H
-#define _BITS_STAT_H	1
-
-/* This structure needs to be defined in accordance with the
-   implementation of __stat, __fstat, and __lstat.  */
-
-#include <bits/types.h>
-
-/* Structure describing file characteristics.  */
-struct stat
-  {
-    /* These are the members that POSIX.1 requires.  */
-
-    __mode_t st_mode;		/* File mode.  */
-#ifndef __USE_FILE_OFFSET64
-    __ino_t st_ino;		/* File serial number.  */
-#else
-    __ino64_t st_ino;		/* File serial number.	*/
-#endif
-    __dev_t st_dev;		/* Device containing the file.  */
-    __nlink_t st_nlink;		/* Link count.  */
-
-    __uid_t st_uid;		/* User ID of the file's owner.  */
-    __gid_t st_gid;		/* Group ID of the file's group.  */
-#ifndef __USE_FILE_OFFSET64
-    __off_t st_size;		/* Size of file, in bytes.  */
-#else
-    __off64_t st_size;		/* Size of file, in bytes.  */
-#endif
-
-    __time_t st_atime;		/* Time of last access.  */
-    __time_t st_mtime;		/* Time of last modification.  */
-    __time_t st_ctime;		/* Time of last status change.  */
-
-    /* This should be defined if there is a `st_blksize' member.  */
-#undef	_STATBUF_ST_BLKSIZE
-  };
-
-/* Encoding of the file mode.  These are the standard Unix values,
-   but POSIX.1 does not specify what values should be used.  */
-
-#define	__S_IFMT	0170000	/* These bits determine file type.  */
-
-/* File types.  */
-#define	__S_IFDIR	0040000	/* Directory.  */
-#define	__S_IFCHR	0020000	/* Character device.  */
-#define	__S_IFBLK	0060000	/* Block device.  */
-#define	__S_IFREG	0100000	/* Regular file.  */
-#define	__S_IFIFO	0010000	/* FIFO.  */
-
-/* POSIX.1b objects.  */
-#define __S_TYPEISMQ(buf) 0
-#define __S_TYPEISSEM(buf) 0
-#define __S_TYPEISSHM(buf) 0
-
-/* Protection bits.  */
-
-#define	__S_ISUID	04000	/* Set user ID on execution.  */
-#define	__S_ISGID	02000	/* Set group ID on execution.  */
-#define	__S_IREAD	0400	/* Read by owner.  */
-#define	__S_IWRITE	0200	/* Write by owner.  */
-#define	__S_IEXEC	0100	/* Execute by owner.  */
-
-#ifdef __USE_LARGEFILE64
-struct stat64
-  {
-    __mode_t st_mode;		/* File mode.  */
-    __ino64_t st_ino;		/* File serial number.	*/
-    __dev_t st_dev;		/* Device.  */
-    __nlink_t st_nlink;		/* Link count.  */
-
-    __uid_t st_uid;		/* User ID of the file's owner.	*/
-    __gid_t st_gid;		/* Group ID of the file's group.*/
-    __off64_t st_size;		/* Size of file, in bytes.  */
-
-    __time_t st_atime;		/* Time of last access.  */
-    __time_t st_mtime;		/* Time of last modification.  */
-    __time_t st_ctime;		/* Time of last status change.  */
-  };
-#endif
-
-#endif	/* bits/stat.h */
diff --git a/bits/statfs.h b/bits/statfs.h
deleted file mode 100644
index bbb4bc9e69..0000000000
--- a/bits/statfs.h
+++ /dev/null
@@ -1,69 +0,0 @@
-/* Definition of `struct statfs', information about a filesystem.
-   Copyright (C) 1996-2017 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_STATFS_H
-# error "Never include <bits/statfs.h> directly; use <sys/statfs.h> instead."
-#endif
-
-#include <bits/types.h>
-
-/* GNU Hurd NOTE: The size of this structure (16 ints) is known in
-   <hurd/hurd_types.defs>, since it is used in the `file_statfs' RPC.  MiG
-   does not cope at all well with the passed C structure not being of the
-   expected size.  There are some filler words at the end to allow for
-   future expansion.  To increase the size of the structure used in the RPC
-   and retain binary compatibility, we would need to assign a new message
-   number.  */
-
-struct statfs
-  {
-    unsigned int f_type;
-    unsigned int f_bsize;
-#ifndef __USE_FILE_OFFSET64
-    __fsblkcnt_t f_blocks;
-    __fsblkcnt_t f_bfree;
-    __fsblkcnt_t f_bavail;
-    __fsblkcnt_t f_files;
-    __fsblkcnt_t f_ffree;
-#else
-    __fsblkcnt64_t f_blocks;
-    __fsblkcnt64_t f_bfree;
-    __fsblkcnt64_t f_bavail;
-    __fsblkcnt64_t f_files;
-    __fsblkcnt64_t f_ffree;
-#endif
-    __fsid_t f_fsid;
-    unsigned int f_namelen;
-    unsigned int f_spare[6];
-  };
-
-#ifdef __USE_LARGEFILE64
-struct statfs64
-  {
-    unsigned int f_type;
-    unsigned int f_bsize;
-    __fsblkcnt64_t f_blocks;
-    __fsblkcnt64_t f_bfree;
-    __fsblkcnt64_t f_bavail;
-    __fsblkcnt64_t f_files;
-    __fsblkcnt64_t f_ffree;
-    __fsid_t f_fsid;
-    unsigned int f_namelen;
-    unsigned int f_spare[6];
-  };
-#endif
diff --git a/bits/statvfs.h b/bits/statvfs.h
deleted file mode 100644
index cfc88fd016..0000000000
--- a/bits/statvfs.h
+++ /dev/null
@@ -1,83 +0,0 @@
-/* Definition of `struct statvfs', information about a filesystem.
-   Copyright (C) 1998-2017 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_STATVFS_H
-# error "Never include <bits/statvfs.h> directly; use <sys/statvfs.h> instead."
-#endif
-
-#include <bits/types.h>
-
-/* GNU Hurd NOTE: The size of this structure (16 ints) is known in
-   <hurd/hurd_types.defs>, since it is used in the `file_statfs' RPC.  MiG
-   does not cope at all well with the passed C structure not being of the
-   expected size.  There are some filler words at the end to allow for
-   future expansion.  To increase the size of the structure used in the RPC
-   and retain binary compatibility, we would need to assign a new message
-   number.  */
-
-struct statvfs
-  {
-    unsigned long int f_bsize;
-    unsigned long int f_frsize;
-#ifndef __USE_FILE_OFFSET64
-    __fsblkcnt_t f_blocks;
-    __fsblkcnt_t f_bfree;
-    __fsblkcnt_t f_bavail;
-    __fsfilcnt_t f_files;
-    __fsfilcnt_t f_ffree;
-    __fsfilcnt_t f_favail;
-#else
-    __fsblkcnt64_t f_blocks;
-    __fsblkcnt64_t f_bfree;
-    __fsblkcnt64_t f_bavail;
-    __fsfilcnt64_t f_files;
-    __fsfilcnt64_t f_ffree;
-    __fsfilcnt64_t f_favail;
-#endif
-    __fsid_t f_fsid;
-    unsigned long int f_flag;
-    unsigned long int f_namemax;
-    unsigned int f_spare[6];
-  };
-
-#ifdef __USE_LARGEFILE64
-struct statvfs64
-  {
-    unsigned long int f_bsize;
-    unsigned long int f_frsize;
-    __fsblkcnt64_t f_blocks;
-    __fsblkcnt64_t f_bfree;
-    __fsblkcnt64_t f_bavail;
-    __fsfilcnt64_t f_files;
-    __fsfilcnt64_t f_ffree;
-    __fsfilcnt64_t f_favail;
-    __fsid_t f_fsid;
-    unsigned long int f_flag;
-    unsigned long int f_namemax;
-    unsigned int f_spare[6];
-  };
-#endif
-
-/* Definitions for the flag in `f_flag'.  */
-enum
-{
-  ST_RDONLY = 1,
-#define ST_RDONLY	ST_RDONLY
-  ST_NOSUID = 2
-#define ST_NOSUID	ST_NOSUID
-};
diff --git a/bits/stdint-intn.h b/bits/stdint-intn.h
deleted file mode 100644
index 87374865e2..0000000000
--- a/bits/stdint-intn.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/* Define intN_t types.
-   Copyright (C) 2017 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 _BITS_STDINT_INTN_H
-#define _BITS_STDINT_INTN_H	1
-
-#include <bits/types.h>
-
-typedef __int8_t int8_t;
-typedef __int16_t int16_t;
-typedef __int32_t int32_t;
-typedef __int64_t int64_t;
-
-#endif /* bits/stdint-intn.h */
diff --git a/bits/stdint-uintn.h b/bits/stdint-uintn.h
deleted file mode 100644
index d27b7786ab..0000000000
--- a/bits/stdint-uintn.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/* Define uintN_t types.
-   Copyright (C) 2017 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 _BITS_STDINT_UINTN_H
-#define _BITS_STDINT_UINTN_H	1
-
-#include <bits/types.h>
-
-typedef __uint8_t uint8_t;
-typedef __uint16_t uint16_t;
-typedef __uint32_t uint32_t;
-typedef __uint64_t uint64_t;
-
-#endif /* bits/stdint-uintn.h */
diff --git a/bits/stdlib-bsearch.h b/bits/stdlib-bsearch.h
deleted file mode 100644
index eb145381fd..0000000000
--- a/bits/stdlib-bsearch.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/* Perform binary search - inline version.
-   Copyright (C) 1991-2017 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/>.  */
-
-__extern_inline void *
-bsearch (const void *__key, const void *__base, size_t __nmemb, size_t __size,
-	 __compar_fn_t __compar)
-{
-  size_t __l, __u, __idx;
-  const void *__p;
-  int __comparison;
-
-  __l = 0;
-  __u = __nmemb;
-  while (__l < __u)
-    {
-      __idx = (__l + __u) / 2;
-      __p = (void *) (((const char *) __base) + (__idx * __size));
-      __comparison = (*__compar) (__key, __p);
-      if (__comparison < 0)
-	__u = __idx;
-      else if (__comparison > 0)
-	__l = __idx + 1;
-      else
-	return (void *) __p;
-    }
-
-  return NULL;
-}
diff --git a/bits/string.h b/bits/string.h
deleted file mode 100644
index 89c627c182..0000000000
--- a/bits/string.h
+++ /dev/null
@@ -1,18 +0,0 @@
-/* This file should provide inline versions of string functions.
-
-   Surround GCC-specific parts with #ifdef __GNUC__, and use `__extern_inline'.
-
-   This file should define __STRING_INLINES if functions are actually defined
-   as inlines.  */
-
-#ifndef _BITS_STRING_H
-#define _BITS_STRING_H	1
-
-/* Define whether to use the unaligned string inline ABI.
-   The string inline functions are an external ABI, thus cannot be changed
-   after the first release of a new target (unlike _STRING_ARCH_unaligned
-   which may be changed from release to release).  Targets must support
-   unaligned accesses in hardware if either define is set to true.  */
-#define _STRING_INLINE_unaligned   0
-
-#endif /* bits/string.h */
diff --git a/bits/stropts.h b/bits/stropts.h
deleted file mode 100644
index f439a37929..0000000000
--- a/bits/stropts.h
+++ /dev/null
@@ -1,230 +0,0 @@
-/* Copyright (C) 1998-2017 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 _STROPTS_H
-# error "Never include <bits/stropts.h> directly; use <stropts.h> instead."
-#endif
-
-#ifndef _BITS_STROPTS_H
-#define _BITS_STROPTS_H	1
-
-#include <bits/types.h>
-
-/* Macros used as `request' argument to `ioctl'.  */
-#define __SID		('S' << 8)
-
-#define I_NREAD	    (__SID | 1)	/* Counts the number of data bytes in the data
-				   block in the first message.  */
-#define I_PUSH	    (__SID | 2)	/* Push STREAMS module onto top of the current
-				   STREAM, just below the STREAM head.  */
-#define I_POP	    (__SID | 3)	/* Remove STREAMS module from just below the
-				   STREAM head.  */
-#define I_LOOK	    (__SID | 4)	/* Retrieve the name of the module just below
-				   the STREAM head and place it in a character
-				   string.  */
-#define I_FLUSH	    (__SID | 5)	/* Flush all input and/or output.  */
-#define I_SRDOPT    (__SID | 6)	/* Sets the read mode.  */
-#define I_GRDOPT    (__SID | 7)	/* Returns the current read mode setting.  */
-#define I_STR	    (__SID | 8)	/* Construct an internal STREAMS `ioctl'
-				   message and send that message downstream. */
-#define I_SETSIG    (__SID | 9)	/* Inform the STREAM head that the process
-				   wants the SIGPOLL signal issued.  */
-#define I_GETSIG    (__SID |10) /* Return the events for which the calling
-				   process is currently registered to be sent
-				   a SIGPOLL signal.  */
-#define I_FIND	    (__SID |11) /* Compares the names of all modules currently
-				   present in the STREAM to the name pointed to
-				   by `arg'.  */
-#define I_LINK	    (__SID |12) /* Connect two STREAMs.  */
-#define I_UNLINK    (__SID |13) /* Disconnects the two STREAMs.  */
-#define I_PEEK	    (__SID |15) /* Allows a process to retrieve the information
-				   in the first message on the STREAM head read
-				   queue without taking the message off the
-				   queue.  */
-#define I_FDINSERT  (__SID |16) /* Create a message from the specified
-				   buffer(s), adds information about another
-				   STREAM, and send the message downstream.  */
-#define I_SENDFD    (__SID |17) /* Requests the STREAM associated with `fildes'
-				   to send a message, containing a file
-				   pointer, to the STREAM head at the other end
-				   of a STREAMS pipe.  */
-#define I_RECVFD    (__SID |14) /* Non-EFT definition.  */
-#define I_SWROPT    (__SID |19) /* Set the write mode.  */
-#define I_GWROPT    (__SID |20) /* Return the current write mode setting.  */
-#define I_LIST	    (__SID |21) /* List all the module names on the STREAM, up
-				   to and including the topmost driver name. */
-#define I_PLINK	    (__SID |22) /* Connect two STREAMs with a persistent
-				   link.  */
-#define I_PUNLINK   (__SID |23) /* Disconnect the two STREAMs that were
-				   connected with a persistent link.  */
-#define I_FLUSHBAND (__SID |28) /* Flush only band specified.  */
-#define I_CKBAND    (__SID |29) /* Check if the message of a given priority
-				   band exists on the STREAM head read
-				   queue.  */
-#define I_GETBAND   (__SID |30) /* Return the priority band of the first
-				   message on the STREAM head read queue.  */
-#define I_ATMARK    (__SID |31) /* See if the current message on the STREAM
-				   head read queue is "marked" by some module
-				   downstream.  */
-#define I_SETCLTIME (__SID |32) /* Set the time the STREAM head will delay when
-				   a STREAM is closing and there is data on
-				   the write queues.  */
-#define I_GETCLTIME (__SID |33) /* Get current value for closing timeout.  */
-#define I_CANPUT    (__SID |34) /* Check if a certain band is writable.  */
-
-
-/* Used in `I_LOOK' request.  */
-#define FMNAMESZ	8	/* compatibility w/UnixWare/Solaris.  */
-
-/* Flush options.  */
-#define FLUSHR		0x01	/* Flush read queues.  */
-#define FLUSHW		0x02	/* Flush write queues.  */
-#define FLUSHRW		0x03	/* Flush read and write queues.  */
-#ifdef __USE_GNU
-# define FLUSHBAND	0x04	/* Flush only specified band.  */
-#endif
-
-/* Possible arguments for `I_SETSIG'.  */
-#define S_INPUT		0x0001	/* A message, other than a high-priority
-				   message, has arrived.  */
-#define S_HIPRI		0x0002	/* A high-priority message is present.  */
-#define S_OUTPUT	0x0004	/* The write queue for normal data is no longer
-				   full.  */
-#define S_MSG		0x0008	/* A STREAMS signal message that contains the
-				   SIGPOLL signal reaches the front of the
-				   STREAM head read queue.  */
-#define S_ERROR		0x0010	/* Notification of an error condition.  */
-#define S_HANGUP	0x0020	/* Notification of a hangup.  */
-#define S_RDNORM	0x0040	/* A normal message has arrived.  */
-#define S_WRNORM	S_OUTPUT
-#define S_RDBAND	0x0080	/* A message with a non-zero priority has
-				   arrived.  */
-#define S_WRBAND	0x0100	/* The write queue for a non-zero priority
-				   band is no longer full.  */
-#define S_BANDURG	0x0200	/* When used in conjunction with S_RDBAND,
-				   SIGURG is generated instead of SIGPOLL when
-				   a priority message reaches the front of the
-				   STREAM head read queue.  */
-
-/* Option for `I_PEEK'.  */
-#define RS_HIPRI	0x01	/* Only look for high-priority messages.  */
-
-/* Options for `I_SRDOPT'.  */
-#define RNORM		0x0000	/* Byte-STREAM mode, the default.  */
-#define RMSGD		0x0001	/* Message-discard mode.   */
-#define RMSGN		0x0002	/* Message-nondiscard mode.   */
-#define RPROTDAT	0x0004	/* Deliver the control part of a message as
-				   data.  */
-#define RPROTDIS	0x0008	/* Discard the control part of a message,
-				   delivering any data part.  */
-#define RPROTNORM	0x0010	/* Fail `read' with EBADMSG if a message
-				   containing a control part is at the front
-				   of the STREAM head read queue.  */
-#ifdef __USE_GNU
-# define RPROTMASK	0x001C	/* The RPROT bits */
-#endif
-
-/* Possible mode for `I_SWROPT'.  */
-#define SNDZERO		0x001	/* Send a zero-length message downstream when a
-				   `write' of 0 bytes occurs.  */
-#ifdef __USE_GNU
-# define SNDPIPE	0x002	/* Send SIGPIPE on write and putmsg if
-				   sd_werror is set.  */
-#endif
-
-/* Arguments for `I_ATMARK'.  */
-#define ANYMARK		0x01	/* Check if the message is marked.  */
-#define LASTMARK	0x02	/* Check if the message is the last one marked
-				   on the queue.  */
-
-/* Argument for `I_UNLINK'.  */
-#ifdef __USE_GNU
-# define MUXID_ALL	(-1)	/* Unlink all STREAMs linked to the STREAM
-				   associated with `fildes'.  */
-#endif
-
-
-/* Macros for `getmsg', `getpmsg', `putmsg' and `putpmsg'.  */
-#define MSG_HIPRI	0x01	/* Send/receive high priority message.  */
-#define MSG_ANY		0x02	/* Receive any message.  */
-#define MSG_BAND	0x04	/* Receive message from specified band.  */
-
-/* Values returned by getmsg and getpmsg */
-#define MORECTL		1	/* More control information is left in
-				   message.  */
-#define MOREDATA	2	/* More data is left in message.  */
-
-
-/* Structure used for the I_FLUSHBAND ioctl on streams.  */
-struct bandinfo
-  {
-    unsigned char bi_pri;
-    int bi_flag;
-  };
-
-struct strbuf
-  {
-    int maxlen;		/* Maximum buffer length.  */
-    int len;		/* Length of data.  */
-    char *buf;		/* Pointer to buffer.  */
-  };
-
-struct strpeek
-  {
-    struct strbuf ctlbuf;
-    struct strbuf databuf;
-    t_uscalar_t flags;			/* UnixWare/Solaris compatibility.  */
-  };
-
-struct strfdinsert
-  {
-    struct strbuf ctlbuf;
-    struct strbuf databuf;
-    t_uscalar_t flags;			/* UnixWare/Solaris compatibility.  */
-    int fildes;
-    int offset;
-  };
-
-struct strioctl
-  {
-    int ic_cmd;
-    int ic_timout;
-    int ic_len;
-    char *ic_dp;
-  };
-
-struct strrecvfd
-  {
-    int fd;
-    uid_t uid;
-    gid_t gid;
-    char __fill[8];			/* UnixWare/Solaris compatibility */
-  };
-
-
-struct str_mlist
-  {
-    char l_name[FMNAMESZ + 1];
-  };
-
-struct str_list
-  {
-    int sl_nmods;
-    struct str_mlist *sl_modlist;
-  };
-
-#endif /* bits/stropts.h */
diff --git a/bits/sys_errlist.h b/bits/sys_errlist.h
deleted file mode 100644
index 03c115119f..0000000000
--- a/bits/sys_errlist.h
+++ /dev/null
@@ -1,23 +0,0 @@
-/* Declare sys_errlist and sys_nerr, or don't.  Don't version.
-   Copyright (C) 2002-2017 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 _STDIO_H
-# error "Never include <bits/sys_errlist.h> directly; use <stdio.h> instead."
-#endif
-
-/* sys_errlist and sys_nerr are deprecated.  Use strerror instead.  */
diff --git a/bits/syslog-path.h b/bits/syslog-path.h
deleted file mode 100644
index 957f03e802..0000000000
--- a/bits/syslog-path.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/* <bits/syslog-path.h> -- _PATH_LOG definition
-   Copyright (C) 2006-2017 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_SYSLOG_H
-# error "Never include this file directly.  Use <sys/syslog.h> instead"
-#endif
-
-#ifndef _BITS_SYSLOG_PATH_H
-#define _BITS_SYSLOG_PATH_H 1
-
-#define	_PATH_LOG	"/dev/log"
-
-#endif /* bits/syslog-path.h */
diff --git a/bits/sysmacros.h b/bits/sysmacros.h
deleted file mode 100644
index 0f0b1aa30a..0000000000
--- a/bits/sysmacros.h
+++ /dev/null
@@ -1,74 +0,0 @@
-/* Definitions of macros to access `dev_t' values.
-   Copyright (C) 1996-2017 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 _BITS_SYSMACROS_H
-#define _BITS_SYSMACROS_H 1
-
-#ifndef _SYS_SYSMACROS_H
-# error "Never include <bits/sysmacros.h> directly; use <sys/sysmacros.h> instead."
-#endif
-
-/* dev_t in glibc is a 64-bit quantity, with 32-bit major and minor numbers.
-   Our default encoding is MMMM Mmmm mmmM MMmm, where M is a hex digit of
-   the major number and m is a hex digit of the minor number.  This is
-   downward compatible with legacy systems where dev_t is 16 bits wide,
-   encoded as MMmm.  It is also downward compatible with the Linux kernel,
-   which (as of 2016) uses 32-bit dev_t, encoded as mmmM MMmm.
-
-   Systems that use an incompatible encoding for dev_t should override this
-   file in the appropriate sysdeps subdirectory.  */
-
-#define __SYSMACROS_DECLARE_MAJOR(DECL_TEMPL)			\
-  DECL_TEMPL(unsigned int, major, (__dev_t __dev))
-
-#define __SYSMACROS_DEFINE_MAJOR(DECL_TEMPL)			\
-  __SYSMACROS_DECLARE_MAJOR (DECL_TEMPL)			\
-  {								\
-    unsigned int __major;					\
-    __major  = ((__dev & (__dev_t) 0x00000000000fff00u) >>  8); \
-    __major |= ((__dev & (__dev_t) 0xfffff00000000000u) >> 32); \
-    return __major;						\
-  }
-
-#define __SYSMACROS_DECLARE_MINOR(DECL_TEMPL)			\
-  DECL_TEMPL(unsigned int, minor, (__dev_t __dev))
-
-#define __SYSMACROS_DEFINE_MINOR(DECL_TEMPL)			\
-  __SYSMACROS_DECLARE_MINOR (DECL_TEMPL)			\
-  {								\
-    unsigned int __minor;					\
-    __minor  = ((__dev & (__dev_t) 0x00000000000000ffu) >>  0); \
-    __minor |= ((__dev & (__dev_t) 0x00000ffffff00000u) >> 12); \
-    return __minor;						\
-  }
-
-#define __SYSMACROS_DECLARE_MAKEDEV(DECL_TEMPL)			\
-  DECL_TEMPL(__dev_t, makedev, (unsigned int __major, unsigned int __minor))
-
-#define __SYSMACROS_DEFINE_MAKEDEV(DECL_TEMPL)			\
-  __SYSMACROS_DECLARE_MAKEDEV (DECL_TEMPL)			\
-  {								\
-    __dev_t __dev;						\
-    __dev  = (((__dev_t) (__major & 0x00000fffu)) <<  8);	\
-    __dev |= (((__dev_t) (__major & 0xfffff000u)) << 32);	\
-    __dev |= (((__dev_t) (__minor & 0x000000ffu)) <<  0);	\
-    __dev |= (((__dev_t) (__minor & 0xffffff00u)) << 12);	\
-    return __dev;						\
-  }
-
-#endif /* bits/sysmacros.h */
diff --git a/bits/termios.h b/bits/termios.h
deleted file mode 100644
index 5487b514c6..0000000000
--- a/bits/termios.h
+++ /dev/null
@@ -1,343 +0,0 @@
-/* termios type and macro definitions.  4.4 BSD/generic GNU version.
-   Copyright (C) 1993-2017 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 _TERMIOS_H
-# error "Never include <bits/termios.h> directly; use <termios.h> instead."
-#endif
-
-/* These macros are also defined in some <bits/ioctls.h> files (with
-   numerically identical values), but this serves to shut up cpp's
-   complaining. */
-#if defined __USE_MISC || defined __USE_XOPEN
-
-# ifdef NL0
-#  undef NL0
-# endif
-# ifdef NL1
-#  undef NL1
-# endif
-# ifdef TAB0
-#  undef TAB0
-# endif
-# ifdef TAB1
-#  undef TAB1
-# endif
-# ifdef TAB2
-#  undef TAB2
-# endif
-# ifdef CR0
-#  undef CR0
-# endif
-# ifdef CR1
-#  undef CR1
-# endif
-# ifdef CR2
-#  undef CR2
-# endif
-# ifdef CR3
-#  undef CR3
-# endif
-# ifdef FF0
-#  undef FF0
-# endif
-# ifdef FF1
-#  undef FF1
-# endif
-# ifdef BS0
-#  undef BS0
-# endif
-# ifdef BS1
-#  undef BS1
-# endif
-
-#endif /* __USE_MISC || __USE_XOPEN */
-
-#ifdef __USE_MISC
-
-# ifdef MDMBUF
-#  undef MDMBUF
-# endif
-# ifdef FLUSHO
-#  undef FLUSHO
-# endif
-# ifdef PENDIN
-#  undef PENDIN
-# endif
-
-#endif /* __USE_MISC */
-
-#ifdef ECHO
-# undef ECHO
-#endif
-#ifdef TOSTOP
-# undef TOSTOP
-#endif
-#ifdef NOFLSH
-# undef NOFLSH
-#endif
-
-
-/* These definitions match those used by the 4.4 BSD kernel.
-   If the operating system has termios system calls or ioctls that
-   correctly implement the POSIX.1 behavior, there should be a
-   system-dependent version of this file that defines `struct termios',
-   `tcflag_t', `cc_t', `speed_t' and the `TC*' constants appropriately.  */
-
-/* Type of terminal control flag masks.  */
-typedef unsigned long int tcflag_t;
-
-/* Type of control characters.  */
-typedef unsigned char cc_t;
-
-/* Type of baud rate specifiers.  */
-typedef long int speed_t;
-
-/* Terminal control structure.  */
-struct termios
-{
-  /* Input modes.  */
-  tcflag_t c_iflag;
-#define	IGNBRK	(1 << 0)	/* Ignore break condition.  */
-#define	BRKINT	(1 << 1)	/* Signal interrupt on break.  */
-#define	IGNPAR	(1 << 2)	/* Ignore characters with parity errors.  */
-#define	PARMRK	(1 << 3)	/* Mark parity and framing errors.  */
-#define	INPCK	(1 << 4)	/* Enable input parity check.  */
-#define	ISTRIP	(1 << 5)	/* Strip 8th bit off characters.  */
-#define	INLCR	(1 << 6)	/* Map NL to CR on input.  */
-#define	IGNCR	(1 << 7)	/* Ignore CR.  */
-#define	ICRNL	(1 << 8)	/* Map CR to NL on input.  */
-#define	IXON	(1 << 9)	/* Enable start/stop output control.  */
-#define	IXOFF	(1 << 10)	/* Enable start/stop input control.  */
-#if defined __USE_MISC || defined __USE_UNIX98
-# define IXANY	(1 << 11)	/* Any character will restart after stop.  */
-#endif
-#ifdef	__USE_MISC
-# define IMAXBEL (1 << 13)	/* Ring bell when input queue is full.  */
-#endif
-#ifdef __USE_GNU
-# define IUCLC	(1 << 14)	/* Translate upper case input to lower case. */
-#endif
-
-  /* Output modes.  */
-  tcflag_t c_oflag;
-#define	OPOST	(1 << 0)	/* Perform output processing.  */
-#if defined __USE_MISC || defined __USE_XOPEN
-# define ONLCR	(1 << 1)	/* Map NL to CR-NL on output.  */
-#endif
-#ifdef	__USE_MISC
-# define OXTABS	TAB3		/* Expand tabs to spaces.  */
-# define ONOEOT	(1 << 3)	/* Discard EOT (^D) on output.  */
-#endif
-#if defined __USE_MISC || defined __USE_XOPEN
-# define OCRNL	(1 << 4)	/* Map CR to NL.  */
-# define ONOCR	(1 << 5)	/* Discard CR's when on column 0.  */
-# define ONLRET	(1 << 6)	/* Move to column 0 on NL.  */
-#endif
-#if defined __USE_MISC || defined __USE_XOPEN
-# define NLDLY	(3 << 8)	/* NL delay.  */
-# define NL0	(0 << 8)	/* NL type 0.  */
-# define NL1	(1 << 8)	/* NL type 1.  */
-# define TABDLY	(3 << 10 | 1 << 2)	/* TAB delay.  */
-# define TAB0	(0 << 10)	/* TAB delay type 0.  */
-# define TAB1	(1 << 10)	/* TAB delay type 1.  */
-# define TAB2	(2 << 10)	/* TAB delay type 2.  */
-# define TAB3	(1 << 2)	/* Expand tabs to spaces.  */
-# define CRDLY	(3 << 12)	/* CR delay.  */
-# define CR0	(0 << 12)	/* CR delay type 0.  */
-# define CR1	(1 << 12)	/* CR delay type 1.  */
-# define CR2	(2 << 12)	/* CR delay type 2.  */
-# define CR3	(3 << 12)	/* CR delay type 3.  */
-# define FFDLY	(1 << 14)	/* FF delay.  */
-# define FF0	(0 << 14)	/* FF delay type 0.  */
-# define FF1	(1 << 14)	/* FF delay type 1.  */
-# define BSDLY	(1 << 15)	/* BS delay.  */
-# define BS0	(0 << 15)	/* BS delay type 0.  */
-# define BS1	(1 << 15)	/* BS delay type 1.  */
-# define VTDLY	(1 << 16)	/* VT delay.  */
-# define VT0	(0 << 16)	/* VT delay type 0.  */
-# define VT1	(1 << 16)	/* VT delay type 1.  */
-#endif /* __USE_MISC || __USE_XOPEN */
-#ifdef __USE_GNU
-# define OLCUC	(1 << 17)	/* Translate lower case output to upper case */
-#endif
-#ifdef __USE_XOPEN
-# define OFILL	(1 << 18)	/* Send fill characters for delays.  */
-#endif
-
-  /* Control modes.  */
-  tcflag_t c_cflag;
-#ifdef	__USE_MISC
-# define CIGNORE	(1 << 0)	/* Ignore these control flags.  */
-#endif
-#define	CSIZE	(CS5|CS6|CS7|CS8)	/* Number of bits per byte (mask).  */
-#define	CS5	0		/* 5 bits per byte.  */
-#define	CS6	(1 << 8)	/* 6 bits per byte.  */
-#define	CS7	(1 << 9)	/* 7 bits per byte.  */
-#define	CS8	(CS6|CS7)	/* 8 bits per byte.  */
-#define	CSTOPB	(1 << 10)	/* Two stop bits instead of one.  */
-#define	CREAD	(1 << 11)	/* Enable receiver.  */
-#define	PARENB	(1 << 12)	/* Parity enable.  */
-#define	PARODD	(1 << 13)	/* Odd parity instead of even.  */
-#define	HUPCL	(1 << 14)	/* Hang up on last close.  */
-#define	CLOCAL	(1 << 15)	/* Ignore modem status lines.  */
-#ifdef	__USE_MISC
-# define CRTSCTS	(1 << 16)	/* RTS/CTS flow control.  */
-# define CRTS_IFLOW	CRTSCTS		/* Compatibility.  */
-# define CCTS_OFLOW	CRTSCTS		/* Compatibility.  */
-# define CDTRCTS	(1 << 17)	/* DTR/CTS flow control.  */
-# define MDMBUF		(1 << 20)	/* DTR/DCD flow control.  */
-# define CHWFLOW	(MDMBUF|CRTSCTS|CDTRCTS) /* All types of flow control.  */
-#endif
-
-  /* Local modes.  */
-  tcflag_t c_lflag;
-#ifdef	__USE_MISC
-# define ECHOKE	(1 << 0)	/* Visual erase for KILL.  */
-#endif
-#define	_ECHOE	(1 << 1)	/* Visual erase for ERASE.  */
-#define	ECHOE	_ECHOE
-#define	_ECHOK	(1 << 2)	/* Echo NL after KILL.  */
-#define	ECHOK	_ECHOK
-#define	_ECHO	(1 << 3)	/* Enable echo.  */
-#define	ECHO	_ECHO
-#define	_ECHONL	(1 << 4)	/* Echo NL even if ECHO is off.  */
-#define	ECHONL	_ECHONL
-#ifdef	__USE_MISC
-# define ECHOPRT	(1 << 5)	/* Hardcopy visual erase.  */
-# define ECHOCTL	(1 << 6)	/* Echo control characters as ^X.  */
-#endif
-#define	_ISIG	(1 << 7)	/* Enable signals.  */
-#define	ISIG	_ISIG
-#define	_ICANON	(1 << 8)	/* Do erase and kill processing.  */
-#define	ICANON	_ICANON
-#ifdef	__USE_MISC
-# define ALTWERASE (1 << 9)	/* Alternate WERASE algorithm.  */
-#endif
-#define	_IEXTEN	(1 << 10)	/* Enable DISCARD and LNEXT.  */
-#define	IEXTEN	_IEXTEN
-#ifdef	__USE_MISC
-# define EXTPROC	(1 << 11)	/* External processing.  */
-#endif
-#define	_TOSTOP	(1 << 22)	/* Send SIGTTOU for background output.  */
-#define	TOSTOP	_TOSTOP
-#ifdef	__USE_MISC
-# define FLUSHO	(1 << 23)	/* Output being flushed (state).  */
-# define NOKERNINFO (1 << 25)	/* Disable VSTATUS.  */
-# define PENDIN	(1 << 29)	/* Retype pending input (state).  */
-#endif
-#define	_NOFLSH	(1 << 31)	/* Disable flush after interrupt.  */
-#define	NOFLSH	_NOFLSH
-
-  /* Control characters.  */
-#define	VEOF	0		/* End-of-file character [ICANON].  */
-#define	VEOL	1		/* End-of-line character [ICANON].  */
-#ifdef	__USE_MISC
-# define VEOL2	2		/* Second EOL character [ICANON].  */
-#endif
-#define	VERASE	3		/* Erase character [ICANON].  */
-#ifdef	__USE_MISC
-# define VWERASE	4		/* Word-erase character [ICANON].  */
-#endif
-#define	VKILL	5		/* Kill-line character [ICANON].  */
-#ifdef	__USE_MISC
-# define VREPRINT 6		/* Reprint-line character [ICANON].  */
-#endif
-#define	VINTR	8		/* Interrupt character [ISIG].  */
-#define	VQUIT	9		/* Quit character [ISIG].  */
-#define	VSUSP	10		/* Suspend character [ISIG].  */
-#ifdef	__USE_MISC
-# define VDSUSP	11		/* Delayed suspend character [ISIG].  */
-#endif
-#define	VSTART	12		/* Start (X-ON) character [IXON, IXOFF].  */
-#define	VSTOP	13		/* Stop (X-OFF) character [IXON, IXOFF].  */
-#ifdef	__USE_MISC
-# define VLNEXT	14		/* Literal-next character [IEXTEN].  */
-# define VDISCARD 15		/* Discard character [IEXTEN].  */
-#endif
-#define	VMIN	16		/* Minimum number of bytes read at once [!ICANON].  */
-#define	VTIME	17		/* Time-out value (tenths of a second) [!ICANON].  */
-#ifdef	__USE_MISC
-# define VSTATUS	18		/* Status character [ICANON].  */
-#endif
-#define	NCCS	20		/* Value duplicated in <hurd/tioctl.defs>.  */
-  cc_t c_cc[NCCS];
-
-  /* Input and output baud rates.  */
-  speed_t __ispeed, __ospeed;
-#define	B0	0		/* Hang up.  */
-#define	B50	50		/* 50 baud.  */
-#define	B75	75		/* 75 baud.  */
-#define	B110	110		/* 110 baud.  */
-#define	B134	134		/* 134.5 baud.  */
-#define	B150	150		/* 150 baud.  */
-#define	B200	200		/* 200 baud.  */
-#define	B300	300		/* 300 baud.  */
-#define	B600	600		/* 600 baud.  */
-#define	B1200	1200		/* 1200 baud.  */
-#define	B1800	1800		/* 1800 baud.  */
-#define	B2400	2400		/* 2400 baud.  */
-#define	B4800	4800		/* 4800 baud.  */
-#define	B9600	9600		/* 9600 baud.  */
-#define	B7200	7200		/* 7200 baud.  */
-#define	B14400	14400		/* 14400 baud.  */
-#define	B19200	19200		/* 19200 baud.  */
-#define	B28800	28800		/* 28800 baud.  */
-#define	B38400	38400		/* 38400 baud.  */
-#ifdef	__USE_MISC
-# define EXTA	19200
-# define EXTB	38400
-#endif
-#define	B57600	57600
-#define	B76800	76800
-#define	B115200	115200
-#define	B230400	230400
-#define	B460800	460800
-#define	B500000	500000
-#define	B576000	576000
-#define	B921600	921600
-#define	B1000000 1000000
-#define	B1152000 1152000
-#define	B1500000 1500000
-#define	B2000000 2000000
-#define	B2500000 2500000
-#define	B3000000 3000000
-#define	B3500000 3500000
-#define	B4000000 4000000
-};
-
-#define _IOT_termios /* Hurd ioctl type field.  */ \
-  _IOT (_IOTS (tcflag_t), 4, _IOTS (cc_t), NCCS, _IOTS (speed_t), 2)
-
-/* Values for the OPTIONAL_ACTIONS argument to `tcsetattr'.  */
-#define	TCSANOW		0	/* Change immediately.  */
-#define	TCSADRAIN	1	/* Change when pending output is written.  */
-#define	TCSAFLUSH	2	/* Flush pending input before changing.  */
-#ifdef	__USE_MISC
-# define TCSASOFT	0x10	/* Flag: Don't alter hardware state.  */
-#endif
-
-/* Values for the QUEUE_SELECTOR argument to `tcflush'.  */
-#define	TCIFLUSH	1	/* Discard data received but not yet read.  */
-#define	TCOFLUSH	2	/* Discard data written but not yet sent.  */
-#define	TCIOFLUSH	3	/* Discard all pending data.  */
-
-/* Values for the ACTION argument to `tcflow'.  */
-#define	TCOOFF	1		/* Suspend output.  */
-#define	TCOON	2		/* Restart suspended output.  */
-#define	TCIOFF	3		/* Send a STOP character.  */
-#define	TCION	4		/* Send a START character.  */
diff --git a/bits/time.h b/bits/time.h
deleted file mode 100644
index 91ad34f049..0000000000
--- a/bits/time.h
+++ /dev/null
@@ -1,64 +0,0 @@
-/* System-dependent timing definitions.  Generic version.
-   Copyright (C) 1996-2017 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/>.  */
-
-/*
- * Never include this file directly; use <time.h> instead.
- */
-
-#ifndef _BITS_TIME_H
-#define _BITS_TIME_H	1
-
-#include <bits/types.h>
-
-/* ISO/IEC 9899:1999 7.23.1: Components of time
-   The macro `CLOCKS_PER_SEC' is an expression with type `clock_t' that is
-   the number per second of the value returned by the `clock' function.  */
-/* CAE XSH, Issue 4, Version 2: <time.h>
-   The value of CLOCKS_PER_SEC is required to be 1 million on all
-   XSI-conformant systems. */
-#define CLOCKS_PER_SEC  ((__clock_t) 1000000)
-
-#if (!defined __STRICT_ANSI__ || defined __USE_POSIX) \
-   && !defined __USE_XOPEN2K
-/* Even though CLOCKS_PER_SEC has such a strange value CLK_TCK
-   presents the real value for clock ticks per second for the system.  */
-extern long int __sysconf (int);
-# define CLK_TCK ((__clock_t) __sysconf (2))	/* 2 is _SC_CLK_TCK */
-#endif
-
-#ifdef __USE_POSIX199309
-/* Identifier for system-wide realtime clock.  */
-# define CLOCK_REALTIME			0
-/* Monotonic system-wide clock.  */
-# define CLOCK_MONOTONIC		1
-/* High-resolution timer from the CPU.  */
-# define CLOCK_PROCESS_CPUTIME_ID	2
-/* Thread-specific CPU-time clock.  */
-# define CLOCK_THREAD_CPUTIME_ID	3
-/* Monotonic system-wide clock, not adjusted for frequency scaling.  */
-# define CLOCK_MONOTONIC_RAW		4
-/* Identifier for system-wide realtime clock, updated only on ticks.  */
-# define CLOCK_REALTIME_COARSE		5
-/* Monotonic system-wide clock, updated only on ticks.  */
-# define CLOCK_MONOTONIC_COARSE		6
-
-/* Flag to indicate time is absolute.  */
-# define TIMER_ABSTIME			1
-#endif
-
-#endif	/* bits/time.h */
diff --git a/bits/types/__sigset_t.h b/bits/types/__sigset_t.h
deleted file mode 100644
index c90d760a6e..0000000000
--- a/bits/types/__sigset_t.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef ____sigset_t_defined
-#define ____sigset_t_defined 1
-
-/* A `sigset_t' has a bit for each signal.  */
-typedef unsigned long int __sigset_t;
-
-#endif
diff --git a/bits/types/sigevent_t.h b/bits/types/sigevent_t.h
deleted file mode 100644
index 7b8cb054d7..0000000000
--- a/bits/types/sigevent_t.h
+++ /dev/null
@@ -1,17 +0,0 @@
-#ifndef __sigevent_t_defined
-#define __sigevent_t_defined 1
-
-#include <bits/types.h>
-#include <bits/types/sigval_t.h>
-
-/* Structure to transport application-defined values with signals.  */
-typedef struct sigevent
-  {
-    sigval_t sigev_value;
-    int sigev_signo;
-    int sigev_notify;
-    void (*sigev_notify_function) (sigval_t);	    /* Function to start.  */
-    void *sigev_notify_attributes;		    /* Really pthread_attr_t.*/
-  } sigevent_t;
-
-#endif
diff --git a/bits/types/siginfo_t.h b/bits/types/siginfo_t.h
deleted file mode 100644
index ab6bf18bec..0000000000
--- a/bits/types/siginfo_t.h
+++ /dev/null
@@ -1,21 +0,0 @@
-#ifndef __siginfo_t_defined
-#define __siginfo_t_defined 1
-
-#include <bits/types.h>
-#include <bits/types/sigval_t.h>
-
-typedef struct siginfo
-  {
-    int si_signo;		/* Signal number.  */
-    int si_errno;		/* If non-zero, an errno value associated with
-				   this signal, as defined in <errno.h>.  */
-    int si_code;		/* Signal code.  */
-    __pid_t si_pid;		/* Sending process ID.  */
-    __uid_t si_uid;		/* Real user ID of sending process.  */
-    void *si_addr;		/* Address of faulting instruction.  */
-    int si_status;		/* Exit value or signal.  */
-    long int si_band;		/* Band event for SIGPOLL.  */
-    sigval_t si_value;		/* Signal value.  */
-  } siginfo_t;
-
-#endif
diff --git a/bits/types/stack_t.h b/bits/types/stack_t.h
deleted file mode 100644
index 47149fce94..0000000000
--- a/bits/types/stack_t.h
+++ /dev/null
@@ -1,33 +0,0 @@
-/* Define stack_t.
-   Copyright (C) 1998-2017 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 __stack_t_defined
-#define __stack_t_defined 1
-
-#define __need_size_t
-#include <stddef.h>
-
-/* Structure describing a signal stack.  */
-typedef struct
-  {
-    void *ss_sp;
-    size_t ss_size;
-    int ss_flags;
-  } stack_t;
-
-#endif
diff --git a/bits/typesizes.h b/bits/typesizes.h
deleted file mode 100644
index d407bf4067..0000000000
--- a/bits/typesizes.h
+++ /dev/null
@@ -1,83 +0,0 @@
-/* bits/typesizes.h -- underlying types for *_t.  Generic version.
-   Copyright (C) 2002-2017 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 _BITS_TYPES_H
-# error "Never include <bits/typesizes.h> directly; use <sys/types.h> instead."
-#endif
-
-#ifndef	_BITS_TYPESIZES_H
-#define	_BITS_TYPESIZES_H	1
-
-/* See <bits/types.h> for the meaning of these macros.  This file exists so
-   that <bits/types.h> need not vary across different GNU platforms.  */
-
-#define __DEV_T_TYPE		__UQUAD_TYPE
-#define __UID_T_TYPE		__U32_TYPE
-#define __GID_T_TYPE		__U32_TYPE
-#define __INO_T_TYPE		__ULONGWORD_TYPE
-#define __INO64_T_TYPE		__UQUAD_TYPE
-#define __MODE_T_TYPE		__U32_TYPE
-#define __NLINK_T_TYPE		__UWORD_TYPE
-#define __OFF_T_TYPE		__SLONGWORD_TYPE
-#define __OFF64_T_TYPE		__SQUAD_TYPE
-#define __PID_T_TYPE		__S32_TYPE
-#define __RLIM_T_TYPE		__ULONGWORD_TYPE
-#define __RLIM64_T_TYPE		__UQUAD_TYPE
-#define	__BLKCNT_T_TYPE		__SLONGWORD_TYPE
-#define	__BLKCNT64_T_TYPE	__SQUAD_TYPE
-#define	__FSBLKCNT_T_TYPE	__ULONGWORD_TYPE
-#define	__FSBLKCNT64_T_TYPE	__UQUAD_TYPE
-#define	__FSFILCNT_T_TYPE	__ULONGWORD_TYPE
-#define	__FSFILCNT64_T_TYPE	__UQUAD_TYPE
-#define	__FSWORD_T_TYPE		__SWORD_TYPE
-#define	__ID_T_TYPE		__U32_TYPE
-#define __CLOCK_T_TYPE		__SLONGWORD_TYPE
-#define __TIME_T_TYPE		__SLONGWORD_TYPE
-#define __USECONDS_T_TYPE	__U32_TYPE
-#define __SUSECONDS_T_TYPE	__SLONGWORD_TYPE
-#define __DADDR_T_TYPE		__S32_TYPE
-#define __KEY_T_TYPE		__S32_TYPE
-#define __CLOCKID_T_TYPE	__S32_TYPE
-#define __TIMER_T_TYPE		void *
-#define __BLKSIZE_T_TYPE	__SLONGWORD_TYPE
-#define __FSID_T_TYPE		struct { int __val[2]; }
-#define __SSIZE_T_TYPE		__SWORD_TYPE
-#define __SYSCALL_SLONG_TYPE	__SLONGWORD_TYPE
-#define __SYSCALL_ULONG_TYPE	__ULONGWORD_TYPE
-#define __CPU_MASK_TYPE 	__ULONGWORD_TYPE
-
-#ifdef __LP64__
-/* Tell the libc code that off_t and off64_t are actually the same type
-   for all ABI purposes, even if possibly expressed as different base types
-   for C type-checking purposes.  */
-# define __OFF_T_MATCHES_OFF64_T	1
-
-/* Same for ino_t and ino64_t.  */
-# define __INO_T_MATCHES_INO64_T	1
-
-/* And for rlim_t and rlim64_t.  */
-# define __RLIM_T_MATCHES_RLIM64_T	1
-#else
-# define __RLIM_T_MATCHES_RLIM64_T	0
-#endif
-
-/* Number of descriptors that can fit in an `fd_set'.  */
-#define	__FD_SETSIZE		1024
-
-
-#endif /* bits/typesizes.h */
diff --git a/bits/uintn-identity.h b/bits/uintn-identity.h
deleted file mode 100644
index d2152c283a..0000000000
--- a/bits/uintn-identity.h
+++ /dev/null
@@ -1,50 +0,0 @@
-/* Inline functions to return unsigned integer values unchanged.
-   Copyright (C) 2017 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/>.  */
-
-#if !defined _NETINET_IN_H && !defined _ENDIAN_H
-# error "Never use <bits/uintn-identity.h> directly; include <netinet/in.h> or <endian.h> instead."
-#endif
-
-#ifndef _BITS_UINTN_IDENTITY_H
-#define _BITS_UINTN_IDENTITY_H 1
-
-#include <bits/types.h>
-
-/* These inline functions are to ensure the appropriate type
-   conversions and associated diagnostics from macros that convert to
-   a given endianness.  */
-
-static __inline __uint16_t
-__uint16_identity (__uint16_t __x)
-{
-  return __x;
-}
-
-static __inline __uint32_t
-__uint32_identity (__uint32_t __x)
-{
-  return __x;
-}
-
-static __inline __uint64_t
-__uint64_identity (__uint64_t __x)
-{
-  return __x;
-}
-
-#endif /* _BITS_UINTN_IDENTITY_H.  */
diff --git a/bits/uio.h b/bits/uio.h
deleted file mode 100644
index 96a3a71d42..0000000000
--- a/bits/uio.h
+++ /dev/null
@@ -1,23 +0,0 @@
-/* Copyright (C) 1996-2017 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_UIO_H
-# error "Never include <bits/uio.h> directly; use <sys/uio.h> instead."
-#endif
-
-
-#include <bits/types/struct_iovec.h>
diff --git a/bits/ustat.h b/bits/ustat.h
deleted file mode 100644
index a0c784247b..0000000000
--- a/bits/ustat.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/* Copyright (C) 1997-2017 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_USTAT_H
-# error "Never include <bits/ustat.h> directly; use <sys/ustat.h> instead."
-#endif
-
-#include <sys/types.h>
-
-struct ustat
-  {
-    __daddr_t f_tfree;		/* Number of free blocks.  */
-    __ino_t f_tinode;		/* Number of free inodes.  */
-    char f_fname[6];
-    char f_fpack[6];
-  };
diff --git a/bits/utmp.h b/bits/utmp.h
deleted file mode 100644
index ccec916774..0000000000
--- a/bits/utmp.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/* The `struct utmp' type, describing entries in the utmp file.  Generic/BSDish
-   Copyright (C) 1993-2017 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 _UTMP_H
-# error "Never include <bits/utmp.h> directly; use <utmp.h> instead."
-#endif
-
-#include <paths.h>
-#include <time.h>
-
-
-#define	UT_NAMESIZE	8
-#define	UT_LINESIZE	8
-#define	UT_HOSTSIZE	16
-
-
-struct lastlog
-  {
-    time_t ll_time;
-    char ll_line[UT_LINESIZE];
-    char ll_host[UT_HOSTSIZE];
-  };
-
-struct utmp
-  {
-    char ut_line[UT_LINESIZE];
-    char ut_user[UT_NAMESIZE];
-#define ut_name ut_user
-    char ut_host[UT_HOSTSIZE];
-    long int ut_time;
-  };
-
-
-#define _HAVE_UT_HOST 1		/* We have the ut_host field.  */
diff --git a/bits/utsname.h b/bits/utsname.h
deleted file mode 100644
index cd16dbf5f2..0000000000
--- a/bits/utsname.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/* Copyright (C) 1997-2017 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_UTSNAME_H
-# error "Never include <bits/utsname.h> directly; use <sys/utsname.h> instead."
-#endif
-
-/* The size of the character arrays used to hold the information
-   in a `struct utsname'.  Enlarge this as necessary.  */
-#define	_UTSNAME_LENGTH		1024
-
-/* If nonzero, the size of of the `domainname` field in `struct utsname'.
-   This is zero to indicate that there should be no such field at all.  */
-#define _UTSNAME_DOMAIN_LENGTH	0
diff --git a/bits/waitflags.h b/bits/waitflags.h
deleted file mode 100644
index abc3816280..0000000000
--- a/bits/waitflags.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/* Definitions of flag bits for `waitpid' et al.
-   Copyright (C) 1992-2017 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/>.  */
-
-#if !defined _SYS_WAIT_H && !defined _STDLIB_H
-# error "Never include <bits/waitflags.h> directly; use <sys/wait.h> instead."
-#endif
-
-
-/* Bits in the third argument to `waitpid'.  */
-#define	WNOHANG		1	/* Don't block waiting.  */
-#define	WUNTRACED	2	/* Report status of stopped children.  */
diff --git a/bits/waitstatus.h b/bits/waitstatus.h
deleted file mode 100644
index a6d271cc8d..0000000000
--- a/bits/waitstatus.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/* Definitions of status bits for `wait' et al.
-   Copyright (C) 1992-2017 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/>.  */
-
-#if !defined _SYS_WAIT_H && !defined _STDLIB_H
-# error "Never include <bits/waitstatus.h> directly; use <sys/wait.h> instead."
-#endif
-
-
-/* Everything extant so far uses these same bits.  */
-
-
-/* If WIFEXITED(STATUS), the low-order 8 bits of the status.  */
-#define	__WEXITSTATUS(status)	(((status) & 0xff00) >> 8)
-
-/* If WIFSIGNALED(STATUS), the terminating signal.  */
-#define	__WTERMSIG(status)	((status) & 0x7f)
-
-/* If WIFSTOPPED(STATUS), the signal that stopped the child.  */
-#define	__WSTOPSIG(status)	__WEXITSTATUS(status)
-
-/* Nonzero if STATUS indicates normal termination.  */
-#define	__WIFEXITED(status)	(__WTERMSIG(status) == 0)
-
-/* Nonzero if STATUS indicates termination by a signal.  */
-#define __WIFSIGNALED(status) \
-  (((signed char) (((status) & 0x7f) + 1) >> 1) > 0)
-
-/* Nonzero if STATUS indicates the child is stopped.  */
-#define	__WIFSTOPPED(status)	(((status) & 0xff) == 0x7f)
-
-/* Nonzero if STATUS indicates the child continued after a stop.  We only
-   define this if <bits/waitflags.h> provides the WCONTINUED flag bit.  */
-#ifdef WCONTINUED
-# define __WIFCONTINUED(status)	((status) == __W_CONTINUED)
-#endif
-
-/* Nonzero if STATUS indicates the child dumped core.  */
-#define	__WCOREDUMP(status)	((status) & __WCOREFLAG)
-
-/* Macros for constructing status values.  */
-#define	__W_EXITCODE(ret, sig)	((ret) << 8 | (sig))
-#define	__W_STOPCODE(sig)	((sig) << 8 | 0x7f)
-#define __W_CONTINUED		0xffff
-#define	__WCOREFLAG		0x80
diff --git a/bits/wchar.h b/bits/wchar.h
deleted file mode 100644
index c1200eeee5..0000000000
--- a/bits/wchar.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/* wchar_t type related definitions.
-   Copyright (C) 2000-2017 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 _BITS_WCHAR_H
-#define _BITS_WCHAR_H	1
-
-/* The fallback definitions, for when __WCHAR_MAX__ or __WCHAR_MIN__
-   are not defined, give the right value and type as long as both int
-   and wchar_t are 32-bit types.  Adding L'\0' to a constant value
-   ensures that the type is correct; it is necessary to use (L'\0' +
-   0) rather than just L'\0' so that the type in C++ is the promoted
-   version of wchar_t rather than the distinct wchar_t type itself.
-   Because wchar_t in preprocessor #if expressions is treated as
-   intmax_t or uintmax_t, the expression (L'\0' - 1) would have the
-   wrong value for WCHAR_MAX in such expressions and so cannot be used
-   to define __WCHAR_MAX in the unsigned case.  */
-
-#ifdef __WCHAR_MAX__
-# define __WCHAR_MAX	__WCHAR_MAX__
-#elif L'\0' - 1 > 0
-# define __WCHAR_MAX	(0xffffffffu + L'\0')
-#else
-# define __WCHAR_MAX	(0x7fffffff + L'\0')
-#endif
-
-#ifdef __WCHAR_MIN__
-# define __WCHAR_MIN	__WCHAR_MIN__
-#elif L'\0' - 1 > 0
-# define __WCHAR_MIN	(L'\0' + 0)
-#else
-# define __WCHAR_MIN	(-__WCHAR_MAX - 1)
-#endif
-
-#endif	/* bits/wchar.h */
diff --git a/bits/wordsize.h b/bits/wordsize.h
deleted file mode 100644
index 14edae3a11..0000000000
--- a/bits/wordsize.h
+++ /dev/null
@@ -1,27 +0,0 @@
-#error "This file must be written based on the data type sizes of the target"
-
-/* The following entries are a template for what defines should be in the
-   wordsize.h header file for a target.  */
-
-/* Size in bits of the 'long int' and pointer types.  */
-#define __WORDSIZE
-
-/* This should be set to 1 if __WORDSIZE is 32 and size_t is type
-   'unsigned long' instead of type 'unsigned int'.  This will ensure
-   that SIZE_MAX is defined as an unsigned long constant instead of an
-   unsigned int constant.  Set to 0 if __WORDSIZE is 32 and size_t is
-   'unsigned int' and leave undefined if __WORDSIZE is 64.  */
-#define __WORDSIZE32_SIZE_ULONG
-
-/* This should be set to 1 if __WORDSIZE is 32 and ptrdiff_t is type 'long'
-   instead of type 'int'.  This will ensure that PTRDIFF_MIN and PTRDIFF_MAX
-   are defined as long constants instead of int constants.  Set to 0 if
-   __WORDSIZE is 32 and ptrdiff_t is type 'int' and leave undefined if
-   __WORDSIZE is 64.  */
-#define __WORDSIZE32_PTRDIFF_LONG
-
-/* Set to 1 in order to force time types to be 32 bits instead of 64 bits in
-   struct lastlog and struct utmp{,x} on 64-bit ports.  This may be done in
-   order to make 64-bit ports compatible with 32-bit ports.  Set to 0 for
-   64-bit ports where the time types are 64-bits or for any 32-bit ports.  */
-#define __WORDSIZE_TIME64_COMPAT32
diff --git a/bits/xtitypes.h b/bits/xtitypes.h
deleted file mode 100644
index 67455d01f3..0000000000
--- a/bits/xtitypes.h
+++ /dev/null
@@ -1,33 +0,0 @@
-/* bits/xtitypes.h -- Define some types used by <bits/stropts.h>.  Generic.
-   Copyright (C) 2002-2017 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 _STROPTS_H
-# error "Never include <bits/xtitypes.h> directly; use <stropts.h> instead."
-#endif
-
-#ifndef _BITS_XTITYPES_H
-#define _BITS_XTITYPES_H	1
-
-#include <bits/types.h>
-
-/* This type is used by some structs in <bits/stropts.h>.  */
-typedef __SLONGWORD_TYPE __t_scalar_t;
-typedef __ULONGWORD_TYPE __t_uscalar_t;
-
-
-#endif /* bits/xtitypes.h */