Update. cvs/libc-ud-971125

1997-11-26 04:28  Ulrich Drepper  <drepper@cygnus.com>

	* eld/dl-profile.c (_dl_start_profile): Avoid FP calculation when
	computing s_scale.  Patch by a sun <asun@zoology.washington.edu>.

	* iconv/gconv_close.c: Correct freeing of descriptor data.
	* iconv/gconv_simple.c: Return correct error values for illegal or
	incomplete characters.

	* Makefile (iconvdata/%): Special goal to simplify iconvdata
	development.
	* iconvdata/Makefile: New file.
	* iconvdata/configure: Likewise.
	* iconvdata/extra-module.mk: Likewise.
	* iconvdata/gconv-modules: Likewise.
	* iconvdata/iso6937.c: Likewise.
	* iconvdata/iso8859-1.c: Likewise.
	* iconvdata/iso8859-10.c: Likewise.
	* iconvdata/iso8859-10.h: Likewise.
	* iconvdata/iso8859-2.c: Likewise.
	* iconvdata/iso8859-2.h: Likewise.
	* iconvdata/iso8859-3.c: Likewise.
	* iconvdata/iso8859-3.h: Likewise.
	* iconvdata/iso8859-4.c: Likewise.
	* iconvdata/iso8859-4.h: Likewise.
	* iconvdata/iso8859-5.c: Likewise.
	* iconvdata/iso8859-5.h: Likewise.
	* iconvdata/iso8859-6.c: Likewise.
	* iconvdata/iso8859-6.h: Likewise.
	* iconvdata/iso8859-7.c: Likewise.
	* iconvdata/iso8859-7.h: Likewise.
	* iconvdata/iso8859-8.c: Likewise.
	* iconvdata/iso8859-8.h: Likewise.
	* iconvdata/iso8859-9.c: Likewise.
	* iconvdata/iso8859-9.h: Likewise.
	* iconvdata/iso8859-generic.c: Likewise.
	* iconvdata/t61.c: Likewise.

	* string/Makefile (routines): Add strcasestr.
	* string/string.h: Add prototype for strcasestr.
	* sysdeps/generic/strcasestr.c: New file.
	* wcsmbs/mbrtowc.c: Simplify special case a bit.
	* wcsmbs/wcrtomb.c: Likewise.
	* wcsmbs/mbsnrtowcs.c: Correctly handle incomplete characters.
	* wcsmbs/wcsnrtombs.c: Likewise.
	* wcsmbs/mbsrtowcs.c: Make sure SRC argument is correct when
	partial character is read.
	* wcsmbs/wcsrtombs.c: Likewise.
	* wcsmbs/wmemrtombs.c: Likewise.
	* wcsmbs/wmemrtowcs.c: Likewise.

	* io/ftw.h: Include <sys/stat.h> instead of <bits/stat.h>.
	* login/pty.h: Include <sys/ioctl.h> instead og <bits/ioctl-types.h>.
	* sysdeps/i386/__longjmp.S: Define _SETJMP_H.
	* sysdeps/i386/elf/setjmp.S: Likewise.
	* sysdeps/unix/sysv/linux/kernel_termios.h: Do include
	<bits/termios.h>.

	* sysdeps/posix/mk-stdiolim.c: Output file with comment.
	* sysdeps/unix/sysv/linux/stdio_lim.h.in: Add comment.

	* sysdeps/unix/sysv/linux/sys/mman.h: Pretty print.
	* sysvipc/sys/ipc.h: Likewise.
	* sysvipc/sys/msg.h: Likewise.
	* sysvipc/sys/sem.h: Likewise.
	* sysvipc/sys/shm.h: Likewise.

	* sysdeps/alpha/bits/endian.h: Issue error message if the header is
	used directly.
	* sysdeps/alpha/bits/setjmp.h: Likewise.
	* sysdeps/alpha/fpu/bits/fenv.h: Likewise.
	* sysdeps/arm/bits/endian.h: Likewise.
	* sysdeps/arm/bits/setjmp.h: Likewise.
	* sysdeps/generic/bits/byteswap.h: Likewise.
	* sysdeps/generic/bits/confname.h: Likewise.
	* sysdeps/generic/bits/dirent.h: Likewise.
	* sysdeps/generic/bits/dlfcn.h: Likewise.
	* sysdeps/generic/bits/endian.h: Likewise.
	* sysdeps/generic/bits/fenv.h: Likewise.
	* sysdeps/generic/bits/huge_val.h: Likewise.
	* sysdeps/generic/bits/in.h: Likewise.
	* sysdeps/generic/bits/ioctl-types.h: Likewise.
	* sysdeps/generic/bits/ioctls.h: Likewise.
	* sysdeps/generic/bits/ipc.h: Likewise.
	* sysdeps/generic/bits/msq.h: Likewise.
	* sysdeps/generic/bits/poll.h: Likewise.
	* sysdeps/generic/bits/resource.h: Likewise.
	* sysdeps/generic/bits/sched.h: Likewise.
	* sysdeps/generic/bits/sem.h: Likewise.
	* sysdeps/generic/bits/setjmp.h: Likewise.
	* sysdeps/generic/bits/shm.h: Likewise.
	* sysdeps/generic/bits/sigaction.h: Likewise.
	* sysdeps/generic/bits/sigcontext.h: Likewise.
	* sysdeps/generic/bits/socket.h: Likewise.
	* sysdeps/generic/bits/stat.h: Likewise.
	* sysdeps/generic/bits/statfs.h: Likewise.
	* sysdeps/generic/bits/stdio_lim.h: Likewise.
	* sysdeps/generic/bits/termios.h: Likewise.
	* sysdeps/generic/bits/time.h: Likewise.
	* sysdeps/generic/bits/uio.h: Likewise.
	* sysdeps/generic/bits/utmp.h: Likewise.
	* sysdeps/generic/bits/utmpx.h: Likewise.
	* sysdeps/generic/bits/utsname.h: Likewise.
	* sysdeps/generic/bits/waitflags.h: Likewise.
	* sysdeps/generic/bits/waitstatus.h: Likewise.
	* sysdeps/gnu/bits/utmp.h: Likewise.
	* sysdeps/gnu/bits/utmpx.h: Likewise.
	* sysdeps/i386/bits/byteswap.h: Likewise.
	* sysdeps/i386/bits/endian.h: Likewise.
	* sysdeps/i386/bits/huge_val.h: Likewise.
	* sysdeps/i386/bits/setjmp.h: Likewise.
	* sysdeps/i386/fpu/bits/fenv.h: Likewise.
	* sysdeps/ieee754/bits/huge_val.h: Likewise.
	* sysdeps/m68k/bits/byteswap.h: Likewise.
	* sysdeps/m68k/bits/endian.h: Likewise.
	* sysdeps/m68k/bits/setjmp.h: Likewise.
	* sysdeps/m68k/fpu/bits/fenv.h: Likewise.
	* sysdeps/mach/hurd/alpha/bits/sigcontext.h: Likewise.
	* sysdeps/mach/hurd/bits/ioctls.h: Likewise.
	* sysdeps/mach/hurd/bits/stat.h: Likewise.
	* sysdeps/mach/hurd/hppa/bits/sigcontext.h: Likewise.
	* sysdeps/mach/hurd/i386/bits/sigcontext.h: Likewise.
	* sysdeps/mach/hurd/mips/bits/sigcontext.h: Likewise.
	* sysdeps/mips/bits/dlfcn.h: Likewise.
	* sysdeps/mips/bits/endian.h: Likewise.
	* sysdeps/mips/bits/setjmp.h: Likewise.
	* sysdeps/mips/dec/bits/endian.h: Likewise.
	* sysdeps/mips/mips64/bits/setjmp.h: Likewise.
	* sysdeps/mips/mipsel/bits/endian.h: Likewise.
	* sysdeps/mips/p40/bits/endian.h: Likewise.
	* sysdeps/powerpc/bits/endian.h: Likewise.
	* sysdeps/powerpc/bits/fenv.h: Likewise.
	* sysdeps/powerpc/bits/setjmp.h: Likewise.
	* sysdeps/sparc/sparc32/bits/endian.h: Likewise.
	* sysdeps/sparc/sparc32/bits/setjmp.h: Likewise.
	* sysdeps/sparc/sparc32/fpu/bits/fenv.h: Likewise.
	* sysdeps/sparc/sparc64/bits/endian.h: Likewise.
	* sysdeps/sparc/sparc64/fpu/bits/fenv.h: Likewise.
	* sysdeps/unix/bsd/bits/dirent.h: Likewise.
	* sysdeps/unix/bsd/bits/stat.h: Likewise.
	* sysdeps/unix/bsd/bits/waitflags.h: Likewise.
	* sysdeps/unix/bsd/bsd4.4/bits/dirent.h: Likewise.
	* sysdeps/unix/bsd/osf/alpha/bits/stat.h: Likewise.
	* sysdeps/unix/bsd/osf/bits/sigaction.h: Likewise.
	* sysdeps/unix/bsd/sun/m68k/bits/sigcontext.h: Likewise.
	* sysdeps/unix/bsd/sun/sparc/bits/sigcontext.h: Likewise.
	* sysdeps/unix/bsd/sun/sunos4/bits/resource.h: Likewise.
	* sysdeps/unix/bsd/sun/sunos4/bits/termios.h: Likewise.
	* sysdeps/unix/bsd/sun/sunos4/bits/utsname.h: Likewise.
	* sysdeps/unix/bsd/ultrix4/bits/utsname.h: Likewise.
	* sysdeps/unix/bsd/ultrix4/mips/bits/sigcontext.h: Likewise.
	* sysdeps/unix/common/bits/dirent.h: Likewise.
	* sysdeps/unix/sysv/bits/dirent.h: Likewise.
	* sysdeps/unix/sysv/bits/stat.h: Likewise.
	* sysdeps/unix/sysv/bits/utmp.h: Likewise.
	* sysdeps/unix/sysv/bits/utsname.h: Likewise.
	* sysdeps/unix/sysv/irix4/bits/confname.h: Likewise.
	* sysdeps/unix/sysv/irix4/bits/stat.h: Likewise.
	* sysdeps/unix/sysv/linux/alpha/bits/ioctls.h: Likewise.
	* sysdeps/unix/sysv/linux/alpha/bits/ipc.h: Likewise.
	* sysdeps/unix/sysv/linux/alpha/bits/mman.h: Likewise.
	* sysdeps/unix/sysv/linux/alpha/bits/sigaction.h: Likewise.
	* sysdeps/unix/sysv/linux/alpha/bits/stat.h: Likewise.
	* sysdeps/unix/sysv/linux/alpha/bits/termios.h: Likewise.
	* sysdeps/unix/sysv/linux/alpha/bits/time.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/dirent.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/in.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/ioctl-types.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/ioctls.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/ipc.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/msq.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/poll.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/resource.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/sched.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/sem.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/shm.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/sigaction.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/sigcontext.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/socket.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/stat.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/statfs.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/termios.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/time.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/uio.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/utsname.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/waitflags.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/bits/mman.h: Likewise.
	* sysdeps/unix/sysv/linux/m68k/bits/mman.h: Likewise.
	* sysdeps/unix/sysv/linux/m68k/bits/poll.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/endian.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/ioctl-types.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/ipc.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/mman.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/poll.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/shm.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/sigaction.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/socket.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/stat.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/statfs.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/termios.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/time.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/bits/ioctl-types.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/bits/mman.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/bits/termios.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/bits/ioctls.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/bits/poll.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/bits/sigaction.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/bits/termios.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/bits/mman.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/bits/mman.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/bits/setjmp.h: Likewise.
	* sysdeps/unix/sysv/minix/bits/sigaction.h: Likewise.
	* sysdeps/unix/sysv/sco3.2.4/bits/confname.h: Likewise.
	* sysdeps/unix/sysv/sco3.2.4/bits/sigaction.h: Likewise.
	* sysdeps/unix/sysv/sysv4/bits/sigaction.h: Likewise.
	* sysdeps/unix/sysv/sysv4/bits/utsname.h: Likewise.
	* sysdeps/unix/sysv/sysv4/bits/waitflags.h: Likewise.
	* sysdeps/unix/sysv/sysv4/i386/bits/stat.h: Likewise.
	* sysdeps/unix/sysv/sysv4/solaris2/bits/stat.h: Likewise.
	* sysdeps/unix/sysv/sysv4/solaris2/sparc/bits/sigcontext.h: Likewise.
	* sysdeps/vax/bits/huge_val.h: Likewise.
	* sysdeps/vax/bits/setjmp.h: Likewise.
	* sysdeps/wordsize-32/bits/elfclass.h: Likewise.
	* sysdeps/wordsize-64/bits/elfclass.h: Likewise.

1997-11-25  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* libio/stdio.h: Correct comment of sys_nerr/sys_errlist

1997-11-25  Paul Eggert  <eggert@shade.twinsun.com>

	* strftime.c (strftime):
	No longer any need to undef or declare if emacs is defined.
	(my_strftime): When checking a -1 returned by mktime, don't blow up
	if localtime_r returns NULL.

1997-11-24  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* README.template: Fix spelling.

1997-11-25  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* configure.in: Enhance --enable-add-ons description a wee bit.

1997-11-24  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* glibcbug.in: Add more information of build environment and flags.

1997-11-23  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/posix/getcwd.c: Recognize EOF from readdir and translate
	it into ENOENT.

30 files changed, 200 insertions, 199 deletions

diff --git a/bits/byteswap.h b/bits/byteswap.h
index 9404cc452e..04a5efe9f0 100644
--- a/bits/byteswap.h
+++ b/bits/byteswap.h
@@ -17,8 +17,9 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
-#ifndef _BITS_BYTESWAP_H
-#define _BITS_BYTESWAP_H	1
+#if !defined _BYTESWAP_H && !defined _NETINET_IN_H
+# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead."
+#endif
 
 /* Swap bytes in 16 bit value.  */
 #define __bswap_16(x) \
@@ -39,5 +40,3 @@
 	__r.__l[1] = __bswap_32 (__v.__l[0]);				      \
 	__r.__ll; })
 #endif
-
-#endif /* bits/byteswap.h */
diff --git a/bits/confname.h b/bits/confname.h
index 40228e11ed..4653887468 100644
--- a/bits/confname.h
+++ b/bits/confname.h
@@ -17,6 +17,10 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
+#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
   {
diff --git a/bits/dirent.h b/bits/dirent.h
index 2f7dca78aa..366cdf8ce2 100644
--- a/bits/dirent.h
+++ b/bits/dirent.h
@@ -1,5 +1,5 @@
 /* Directory entry structure `struct dirent'.  Stub version.
-   Copyright (C) 1996 Free Software Foundation, Inc.
+   Copyright (C) 1996, 1997 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
@@ -17,6 +17,10 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
+#ifndef _DIRENT_H
+# error "Never use <bits/dirent.h> directly; include <dirent.h> instead."
+#endif
+
 struct dirent
   {
     char d_name[1];		/* Variable length.  */
diff --git a/bits/dlfcn.h b/bits/dlfcn.h
index 79604fe8ff..7c33694018 100644
--- a/bits/dlfcn.h
+++ b/bits/dlfcn.h
@@ -17,8 +17,9 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
-#ifndef	_BITS_DLFCN_H
-#define	_BITS_DLFCN_H 1
+#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	0x001	/* Lazy function call binding.  */
@@ -29,5 +30,3 @@
    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	0x100
-
-#endif	/* bits/dlfcn.h */
diff --git a/bits/endian.h b/bits/endian.h
index 597f079a0f..45afd4ae47 100644
--- a/bits/endian.h
+++ b/bits/endian.h
@@ -6,4 +6,8 @@
    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/fenv.h b/bits/fenv.h
index f45deb07c1..c42540fa61 100644
--- a/bits/fenv.h
+++ b/bits/fenv.h
@@ -17,7 +17,7 @@
    Boston, MA 02111-1307, USA.  */
 
 #ifndef _FENV_H
-#error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
+# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
 #endif
 
 
diff --git a/bits/huge_val.h b/bits/huge_val.h
index 8f137d1734..0c30c86f33 100644
--- a/bits/huge_val.h
+++ b/bits/huge_val.h
@@ -1,6 +1,6 @@
 /* Stub `HUGE_VAL' constant.
    Used by <stdlib.h> and <math.h> functions for overflow.
-   Copyright (C) 1992, 1996 Free Software Foundation, Inc.
+   Copyright (C) 1992, 1996, 1997 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
@@ -19,7 +19,7 @@
    Boston, MA 02111-1307, USA.  */
 
 #ifndef _MATH_H
-#error "Never use <bits/huge_val.h> directly; include <math.h> instead."
+# error "Never use <bits/huge_val.h> directly; include <math.h> instead."
 #endif
 
 
diff --git a/bits/in.h b/bits/in.h
index 7241bd24c3..83d7ae6b10 100644
--- a/bits/in.h
+++ b/bits/in.h
@@ -18,8 +18,9 @@
 
 /* Generic version.  */
 
-#ifndef _NETINET_INBITS_H
-#define _NETINET_INBITS_H 1
+#ifndef _NETINET_IN_H
+# error "Never use <bits/in.h> directly; include <netinet/in.h> instead."
+#endif
 
 /* Link numbers.  */
 #define	IMPLINK_IP		155
@@ -55,10 +56,10 @@ struct ip_opts
 
 /* Structure used for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP. */
 struct ip_mreq
-{
-  struct in_addr imr_multiaddr;	/* IP multicast address of group */
-  struct in_addr imr_interface;	/* local IP address of interface */
-};
+  {
+    struct in_addr imr_multiaddr;	/* IP multicast address of group */
+    struct in_addr imr_interface;	/* local IP address of interface */
+  };
 
 /* IPV6 socket options.  */
 #define IPV6_ADDRFORM		1
@@ -80,5 +81,3 @@ struct ip_mreq
 #define IPV6_MULTICAST_LOOP	19
 #define IPV6_ADD_MEMBERSHIP	20
 #define IPV6_DROP_MEMBERSHIP	21
-
-#endif	/* netinet/inbits.h */
diff --git a/bits/ioctl-types.h b/bits/ioctl-types.h
index 1d5c8a002f..26283a0f10 100644
--- a/bits/ioctl-types.h
+++ b/bits/ioctl-types.h
@@ -1,5 +1,5 @@
 /* Structure types for pre-termios terminal ioctls.  Generic Unix version.
-   Copyright (C) 1996 Free Software Foundation, Inc.
+   Copyright (C) 1996, 1997 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
@@ -17,15 +17,11 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
-/*
- * Never include this file directly; use <sys/ioctl.h> instead.
- */
-
-#ifndef _BITS_IOCTL_TYPES_H
-#define _BITS_IOCTL_TYPES_H 1
-
+#ifndef _SYS_IOCTL_H
+# error "Never use <bits/ioctl-types.h> directly; include <sys/ioctl.h> instead."
+#endif
 
-#if	defined(TIOCGETC) || defined(TIOCSETC)
+#if defined TIOCGETC || defined TIOCSETC
 /* Type of ARG for TIOCGETC and TIOCSETC requests.  */
 struct tchars
 {
@@ -41,7 +37,7 @@ struct tchars
   _IOT (_IOTS (char), 6, 0, 0, 0, 0)
 #endif
 
-#if	defined(TIOCGLTC) || defined(TIOCSLTC)
+#if defined TIOCGLTC || defined TIOCSLTC
 /* Type of ARG for TIOCGLTC and TIOCSLTC requests.  */
 struct ltchars
 {
@@ -70,7 +66,7 @@ struct sgttyb
 #define	_IOT_sgttyb	/* Hurd ioctl type field.  */ \
   _IOT (_IOTS (char), 6, _IOTS (short int), 1, 0, 0)
 
-#if	defined(TIOCGWINSZ) || defined(TIOCSWINSZ)
+#if defined TIOCGWINSZ || defined TIOCSWINSZ
 /* Type of ARG for TIOCGWINSZ and TIOCSWINSZ requests.  */
 struct winsize
 {
@@ -86,13 +82,13 @@ struct winsize
   _IOT (_IOTS (unsigned short int), 4, 0, 0, 0, 0)
 #endif
 
-#if	defined (TIOCGSIZE) || defined (TIOCSSIZE)
+#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
+#  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
@@ -116,6 +112,3 @@ struct ttysize
 #  endif
 #  undef sizeof			/* See above.  */
 #endif
-
-
-#endif /* bits/ioctl-types.h */
diff --git a/bits/ioctls.h b/bits/ioctls.h
index 3b6178bfae..d3ecad9515 100644
--- a/bits/ioctls.h
+++ b/bits/ioctls.h
@@ -1 +1,5 @@
+#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
index a5ecbd90b7..58f419be1d 100644
--- a/bits/ipc.h
+++ b/bits/ipc.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995, 1996 Free Software Foundation, Inc.
+/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
 
@@ -17,10 +17,9 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
-#ifndef _SYS_IPC_BUF_H
-
-#define _SYS_IPC_BUF_H	1
-#include <features.h>
+#ifndef _SYS_IPC_H
+# error "Never use <bits/ipc.h> directly; include <sys/ipc.h> instead."
+#endif
 
 #include <sys/types.h>
 
@@ -34,23 +33,16 @@
 #define IPC_SET		1		/* set `ipc_perm' options */
 #define IPC_STAT	2		/* get `ipc_perm' options */
 
-
-__BEGIN_DECLS
-
 /* 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 */
-};
-
-__END_DECLS
-
-#endif /* _SYS_IPC_BUF_H */
+  {
+    __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/msq.h b/bits/msq.h
index 37daa9bf8c..a263869a0e 100644
--- a/bits/msq.h
+++ b/bits/msq.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995, 1997 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public License as
@@ -21,14 +20,11 @@
 #error "Never use <bits/msq.h> directly; include <sys/msg.h> instead."
 #endif
 
-
-#include <features.h>
 #include <sys/types.h>
 
 /* Define options for message queue functions.  */
 #define MSG_NOERROR	010000	/* no error if message is too big */
 
-__BEGIN_DECLS
 
 /* Structure of record for one message inside the kernel.
    The type `struct __msg' is opaque.  */
@@ -43,5 +39,3 @@ struct msqid_ds
   __pid_t msg_lspid;		/* pid of last msgsnd() */
   __pid_t msg_lrpid;		/* pid of last msgrcv() */
 };
-
-__END_DECLS
diff --git a/bits/poll.h b/bits/poll.h
index 55ec70e363..68f611a428 100644
--- a/bits/poll.h
+++ b/bits/poll.h
@@ -16,6 +16,9 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
+#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'
diff --git a/bits/resource.h b/bits/resource.h
index 46cf9a7af5..d0ebeb56c8 100644
--- a/bits/resource.h
+++ b/bits/resource.h
@@ -17,6 +17,10 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
+#ifndef _SYS_RESOURCE_H
+# error "Never use <bits/resource.h> directly; include <sys/resource.h> instead."
+#endif
+
 /* 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
@@ -107,7 +111,8 @@ enum __rusage_who
 #define RUSAGE_CHILDREN RUSAGE_CHILDREN
   };
 
-#include <sys/time.h>           /* For `struct timeval'.  */
+#define __need_timeval
+#include <bits/time.h>           /* For `struct timeval'.  */
 
 /* Structure which says how much of each resource has been used.  */
 struct rusage
diff --git a/bits/sched.h b/bits/sched.h
index bb5da5676f..0c246c8f9a 100644
--- a/bits/sched.h
+++ b/bits/sched.h
@@ -1,6 +1,6 @@
 /* Definitions of constants and data structure for POSIX 1003.1b-1993
    scheduling interface.
-   Copyright (C) 1996 Free Software Foundation, Inc.
+   Copyright (C) 1996, 1997 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
@@ -19,7 +19,7 @@
    Suite 330, Boston, MA 02111-1307, USA.  */
 
 #ifndef _SCHED_H
-#error "Never use <bits/sched.h> directly; include <sched.h> instead."
+# error "Never include <bits/sched.h> directly; use <sched.h> instead."
 #endif
 
 
diff --git a/bits/sem.h b/bits/sem.h
index 1d3e41bd56..8b9f97c62a 100644
--- a/bits/sem.h
+++ b/bits/sem.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public License as
@@ -18,11 +17,9 @@
    Boston, MA 02111-1307, USA.  */
 
 #ifndef _SYS_SEM_H
-#error "Never use <bits/sem.h> directly; include <sys/sem.h> instead."
+# error "Never include <bits/sem.h> directly; use <sys/sem.h> instead."
 #endif
 
-
-#include <features.h>
 #include <sys/types.h>
 
 /* Flags for `semop'.  */
@@ -38,8 +35,6 @@
 #define SETALL		17		/* set all semval's */
 
 
-__BEGIN_DECLS
-
 /* Data structure describing a set of semaphores.  */
 struct semid_ds
 {
@@ -57,5 +52,3 @@ union semun
   unsigned short int *array;		/* array for GETALL & SETALL */
   struct seminfo *__buf;		/* buffer for IPC_INFO */
  };
-
-__END_DECLS
diff --git a/bits/setjmp.h b/bits/setjmp.h
index 6620e5ab15..9150d8d764 100644
--- a/bits/setjmp.h
+++ b/bits/setjmp.h
@@ -1,3 +1,7 @@
 /* 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
index b41d0c1e86..8c97999626 100644
--- a/bits/shm.h
+++ b/bits/shm.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public License as
@@ -18,11 +17,9 @@
    Boston, MA 02111-1307, USA.  */
 
 #ifndef _SYS_SHM_H
-#error "Never use <bits/shm.h> directly; include <sys/shm.h> instead."
+# error "Never include <bits/shm.h> directly; use <sys/shm.h> instead."
 #endif
 
-
-#include <features.h>
 #include <sys/types.h>
 
 /* Flags for `shmat'.  */
@@ -35,19 +32,15 @@
 #define SHM_UNLOCK	12		/* unlock segment (root only) */
 
 
-__BEGIN_DECLS
-
 /* Data structure describing a set of semaphores.  */
 struct shmid_ds
-{
-  struct ipc_perm sem_perm;		/* operation permission struct */
-  int shm_segsz;			/* size of segment in bytes */
-  __time_t sem_atime;			/* time of last shmat() */
-  __time_t sem_dtime;			/* time of last shmdt() */
-  __time_t sem_ctime;			/* time of last change by shmctl() */
-  __pid_t shm_cpid;			/* pid of creator */
-  __pid_t shm_lpid;			/* pid of last shmop */
-  unsigned short int shm_nattch;	/* number of current attaches */
-};
-
-__END_DECLS
+  {
+    struct ipc_perm sem_perm;		/* operation permission struct */
+    int shm_segsz;			/* size of segment in bytes */
+    __time_t sem_atime;			/* time of last shmat() */
+    __time_t sem_dtime;			/* time of last shmdt() */
+    __time_t sem_ctime;			/* time of last change by shmctl() */
+    __pid_t shm_cpid;			/* pid of creator */
+    __pid_t shm_lpid;			/* pid of last shmop */
+    unsigned short int shm_nattch;	/* number of current attaches */
+  };
diff --git a/bits/sigaction.h b/bits/sigaction.h
index e89479bd1c..4499517b1a 100644
--- a/bits/sigaction.h
+++ b/bits/sigaction.h
@@ -16,6 +16,10 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
+#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
diff --git a/bits/sigcontext.h b/bits/sigcontext.h
index 46e4df8c64..576fd30c37 100644
--- a/bits/sigcontext.h
+++ b/bits/sigcontext.h
@@ -17,6 +17,10 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
+#ifndef _SIGNAL_H
+# error "Never use <bits/sigcontext.h> directly; include <signal.h> instead."
+#endif
+
 /* State of this thread when the signal was taken.  */
 struct sigcontext
   {
diff --git a/bits/socket.h b/bits/socket.h
index af42dfac78..a2858b8de8 100644
--- a/bits/socket.h
+++ b/bits/socket.h
@@ -18,17 +18,12 @@
    Boston, MA 02111-1307, USA.  */
 
 #ifndef _SYS_SOCKET_H
-#error "Never include <bits/socket.h> directly; use <sys/socket.h> instead."
+# error "Never include <bits/socket.h> directly; use <sys/socket.h> instead."
 #endif
 
-
-#include <features.h>
-
 #define	__need_size_t
 #include <stddef.h>
 
-__BEGIN_DECLS
-
 /* Type for length arguments in socket calls.  */
 typedef unsigned int socklen_t;
 
@@ -201,5 +196,3 @@ struct linger
     int l_onoff;		/* Nonzero to linger on close.  */
     int l_linger;		/* Time to linger.  */
   };
-
-__END_DECLS
diff --git a/bits/stat.h b/bits/stat.h
index 3648fed738..a0edf2be52 100644
--- a/bits/stat.h
+++ b/bits/stat.h
@@ -16,16 +16,13 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
-/*
- * Never include this file directly; use <sys/stat.h> instead.
- */
+#ifndef _SYS_STAT_H
+# error "Never include <bits/stat.h> directly; use <sys/stat.h> instead."
+#endif
 
 /* This structure needs to be defined in accordance with the
    implementation of __stat, __fstat, and __lstat.  */
 
-#ifndef	_BITS_STAT_H
-#define	_BITS_STAT_H	1
-
 #include <bits/types.h>
 
 /* Structure describing file characteristics.  */
@@ -73,20 +70,17 @@ struct stat
 #ifdef __USE_LARGEFILE64
 struct stat64
   {
-    __dev_t st_dev;			/* Device.  */
-
-    __ino64_t st_ino;			/* File serial number.	*/
-    __mode_t st_mode;			/* File mode.  */
-    __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
+    __dev_t st_dev;		/* Device.  */
 
+    __ino64_t st_ino;		/* File serial number.	*/
+    __mode_t st_mode;		/* File mode.  */
+    __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.  */
 
-#endif /* bits/stat.h */
+    __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
diff --git a/bits/statfs.h b/bits/statfs.h
index 9fa3388801..a92cf52315 100644
--- a/bits/statfs.h
+++ b/bits/statfs.h
@@ -17,12 +17,9 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
-/*
- * Never include this file directly; use <sys/statfs.h> instead.
- */
-
-#ifndef	_BITS_STATFS_H
-#define	_BITS_STATFS_H	1
+#ifndef _SYS_STATFS_H
+# error "Never include <bits/statfs.h> directly; use <sys/statfs.h> instead."
+#endif
 
 #include <bits/types.h>
 
@@ -47,6 +44,3 @@ struct statfs
     unsigned int f_namelen;
     unsigned int f_spare[6];
   };
-
-
-#endif /* bits/statfs.h */
diff --git a/bits/termios.h b/bits/termios.h
index 9a6aed2bba..da059cbf06 100644
--- a/bits/termios.h
+++ b/bits/termios.h
@@ -1,5 +1,5 @@
 /* termios type and macro definitions.  4.4 BSD/generic GNU version.
-   Copyright (C) 1993, 1994, 1996 Free Software Foundation, Inc.
+   Copyright (C) 1993, 1994, 1996, 1997 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
@@ -17,31 +17,35 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
+#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. */
 #ifdef __USE_BSD
 
-#ifdef MDMBUF
-#undef MDMBUF
-#endif
-#ifdef FLUSHO
-#undef FLUSHO
-#endif
-#ifdef PENDIN
-#undef PENDIN
-#endif
+# ifdef MDMBUF
+#  undef MDMBUF
+# endif
+# ifdef FLUSHO
+#  undef FLUSHO
+# endif
+# ifdef PENDIN
+#  undef PENDIN
+# endif
 
 #endif /* __USE_BSD */
 
 #ifdef ECHO
-#undef ECHO
+# undef ECHO
 #endif
 #ifdef TOSTOP
-#undef TOSTOP
+# undef TOSTOP
 #endif
 #ifdef NOFLSH
-#undef NOFLSH
+# undef NOFLSH
 #endif
 
 
@@ -85,15 +89,15 @@ struct termios
   tcflag_t c_oflag;
 #define	OPOST	(1 << 0)	/* Perform output processing.  */
 #ifdef	__USE_BSD
-#define	ONLCR	(1 << 1)	/* Map NL to CR-NL on output.  */
-#define	OXTABS	(1 << 2)	/* Expand tabs to spaces.  */
-#define	ONOEOT	(1 << 8)	/* Discard EOT (^D) on output.  */
+# define ONLCR	(1 << 1)	/* Map NL to CR-NL on output.  */
+# define OXTABS	(1 << 2)	/* Expand tabs to spaces.  */
+# define ONOEOT	(1 << 8)	/* Discard EOT (^D) on output.  */
 #endif
 
   /* Control modes.  */
   tcflag_t c_cflag;
 #ifdef	__USE_BSD
-#define	CIGNORE	(1 << 0)	/* Ignore these control flags.  */
+# 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.  */
@@ -107,15 +111,15 @@ struct termios
 #define	HUPCL	(1 << 14)	/* Hang up on last close.  */
 #define	CLOCAL	(1 << 15)	/* Ignore modem status lines.  */
 #ifdef	__USE_BSD
-#define	CCTS_OFLOW	(1 << 16)	/* CTS flow control of output.  */
-#define	CRTS_IFLOW	(1 << 17)	/* RTS flow control of input.  */
-#define	MDMBUF		(1 << 20)	/* Carrier flow control of output.  */
+# define CCTS_OFLOW	(1 << 16)	/* CTS flow control of output.  */
+# define CRTS_IFLOW	(1 << 17)	/* RTS flow control of input.  */
+# define MDMBUF		(1 << 20)	/* Carrier flow control of output.  */
 #endif
 
   /* Local modes.  */
   tcflag_t c_lflag;
 #ifdef	__USE_BSD
-#define	ECHOKE	(1 << 0)	/* Visual erase for KILL.  */
+# define ECHOKE	(1 << 0)	/* Visual erase for KILL.  */
 #endif
 #define	_ECHOE	(1 << 1)	/* Visual erase for ERASE.  */
 #define	ECHOE	_ECHOE
@@ -126,15 +130,15 @@ struct termios
 #define	_ECHONL	(1 << 4)	/* Echo NL even if ECHO is off.  */
 #define	ECHONL	_ECHONL
 #ifdef	__USE_BSD
-#define	ECHOPRT	(1 << 5)	/* Hardcopy visual erase.  */
-#define	ECHOCTL	(1 << 6)	/* Echo control characters as ^X.  */
+# 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_BSD
-#define	ALTWERASE (1 << 9)	/* Alternate WERASE algorithm.  */
+# define ALTWERASE (1 << 9)	/* Alternate WERASE algorithm.  */
 #endif
 #define	_IEXTEN	(1 << 10)	/* Enable DISCARD and LNEXT.  */
 #define	IEXTEN	_IEXTEN
@@ -142,9 +146,9 @@ struct termios
 #define	_TOSTOP	(1 << 22)	/* Send SIGTTOU for background output.  */
 #define	TOSTOP	_TOSTOP
 #ifdef	__USE_BSD
-#define	FLUSHO	(1 << 23)	/* Output being flushed (state).  */
-#define	NOKERNINFO (1 << 25)	/* Disable VSTATUS.  */
-#define	PENDIN	(1 << 29)	/* Retype pending input (state).  */
+# 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
@@ -153,32 +157,32 @@ struct termios
 #define	VEOF	0		/* End-of-file character [ICANON].  */
 #define	VEOL	1		/* End-of-line character [ICANON].  */
 #ifdef	__USE_BSD
-#define	VEOL2	2		/* Second EOL character [ICANON].  */
+# define VEOL2	2		/* Second EOL character [ICANON].  */
 #endif
 #define	VERASE	3		/* Erase character [ICANON].  */
 #ifdef	__USE_BSD
-#define	VWERASE	4		/* Word-erase character [ICANON].  */
+# define VWERASE	4		/* Word-erase character [ICANON].  */
 #endif
 #define	VKILL	5		/* Kill-line character [ICANON].  */
 #ifdef	__USE_BSD
-#define	VREPRINT 6		/* Reprint-line character [ICANON].  */
+# 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_BSD
-#define	VDSUSP	11		/* Delayed suspend character [ISIG].  */
+# 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_BSD
-#define	VLNEXT	14		/* Literal-next character [IEXTEN].  */
-#define	VDISCARD 15		/* Discard character [IEXTEN].  */
+# 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_BSD
-#define	VSTATUS	18		/* Status character [ICANON].  */
+# define VSTATUS	18		/* Status character [ICANON].  */
 #endif
 #define	NCCS	20		/* Value duplicated in <hurd/tioctl.defs>.  */
   cc_t c_cc[NCCS];
@@ -202,8 +206,8 @@ struct termios
 #define	B19200	19200		/* 19200 baud.  */
 #define	B38400	38400		/* 38400 baud.  */
 #ifdef	__USE_BSD
-#define	EXTA	19200
-#define	EXTB	38400
+# define EXTA	19200
+# define EXTB	38400
 #endif
 };
 
@@ -215,7 +219,7 @@ struct termios
 #define	TCSADRAIN	1	/* Change when pending output is written.  */
 #define	TCSAFLUSH	2	/* Flush pending input before changing.  */
 #ifdef	__USE_BSD
-#define	TCSASOFT	0x10	/* Flag: Don't alter hardware state.  */
+# define TCSASOFT	0x10	/* Flag: Don't alter hardware state.  */
 #endif
 
 /* Values for the QUEUE_SELECTOR argument to `tcflush'.  */
diff --git a/bits/time.h b/bits/time.h
index e41a991b44..cdbd39f91d 100644
--- a/bits/time.h
+++ b/bits/time.h
@@ -21,6 +21,16 @@
  * Never include this file directly; use <time.h> instead.
  */
 
+#ifndef __need_timeval
+# ifndef _BITS_TIME_H
+#  define _BITS_TIME_H	1
+
+#  define CLOCKS_PER_SEC 60
+
+# endif	/* bits/time.h */
+#endif
+
+
 #ifdef __need_timeval
 # undef __need_timeval
 # ifndef _STRUCT_TIMEVAL
@@ -34,11 +44,3 @@ struct timeval
   };
 # endif	/* struct timeval */
 #endif	/* need timeval */
-
-
-#ifndef _BITS_TIME_H
-#define	_BITS_TIME_H	1
-
-#define CLOCKS_PER_SEC 60
-
-#endif	/* bits/time.h */
diff --git a/bits/uio.h b/bits/uio.h
index 1a12697008..56533c1c58 100644
--- a/bits/uio.h
+++ b/bits/uio.h
@@ -17,7 +17,7 @@
    Boston, MA 02111-1307, USA.  */
 
 #ifndef _SYS_UIO_H
-#error "Never use <bits/uio.h> directly; include <sys/uio.h> instead."
+# error "Never include <bits/uio.h> directly; use <sys/uio.h> instead."
 #endif
 
 
diff --git a/bits/utmp.h b/bits/utmp.h
index ccc318bfa1..62817d36d1 100644
--- a/bits/utmp.h
+++ b/bits/utmp.h
@@ -17,12 +17,9 @@
    Boston, MA 02111-1307, USA.  */
 
 #ifndef _UTMP_H
-# error "Never use <bits/utmp.h> directly; include <utmp.h> instead."
+# error "Never include <bits/utmp.h> directly; use <utmp.h> instead."
 #endif
 
-
-#include <features.h>
-
 #include <paths.h>
 #include <time.h>
 
@@ -31,7 +28,6 @@
 #define	UT_LINESIZE	8
 #define	UT_HOSTSIZE	16
 
-__BEGIN_DECLS
 
 struct lastlog
   {
@@ -51,5 +47,3 @@ struct utmp
 
 
 #define _HAVE_UT_HOST 1		/* We have the ut_host field.  */
-
-__END_DECLS
diff --git a/bits/utsname.h b/bits/utsname.h
index 5594bcc4da..ea3f163cef 100644
--- a/bits/utsname.h
+++ b/bits/utsname.h
@@ -1,3 +1,25 @@
+/* Copyright (C) 1997 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _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
diff --git a/bits/waitflags.h b/bits/waitflags.h
index 127eb6ce4c..596df932b7 100644
--- a/bits/waitflags.h
+++ b/bits/waitflags.h
@@ -18,7 +18,7 @@
    Boston, MA 02111-1307, USA.  */
 
 #ifndef _SYS_WAIT_H
-#error "Never use <bits/waitflags.h> directly; include <sys/wait.h> instead."
+# error "Never include <bits/waitflags.h> directly; use <sys/wait.h> instead."
 #endif
 
 
diff --git a/bits/waitstatus.h b/bits/waitstatus.h
index 8e97f2702c..1ec55107f9 100644
--- a/bits/waitstatus.h
+++ b/bits/waitstatus.h
@@ -18,7 +18,7 @@
    Boston, MA 02111-1307, USA.  */
 
 #ifndef _SYS_WAIT_H
-#error "Never use <bits/waitstatus.h> directly; include <sys/wait.h> instead."
+# error "Never include <bits/waitstatus.h> directly; use <sys/wait.h> instead."
 #endif
 
 
@@ -39,11 +39,11 @@
 
 /* Nonzero if STATUS indicates termination by a signal.  */
 #ifdef	__GNUC__
-#define	__WIFSIGNALED(status)						      \
+# define __WIFSIGNALED(status) \
   (__extension__ ({ int __status = (status);				      \
 		    !__WIFSTOPPED(__status) && !__WIFEXITED(__status); }))
 #else	/* Not GCC.  */
-#define	__WIFSIGNALED(status)	(!__WIFSTOPPED(status) && !__WIFEXITED(status))
+# define __WIFSIGNALED(status)	(!__WIFSTOPPED(status) && !__WIFEXITED(status))
 #endif	/* GCC.  */
 
 /* Nonzero if STATUS indicates the child is stopped.  */
@@ -60,45 +60,45 @@
 
 #ifdef	__USE_BSD
 
-#include <endian.h>
+# include <endian.h>
 
 union wait
   {
     int w_status;
     struct
       {
-#if	__BYTE_ORDER == __LITTLE_ENDIAN
+# if	__BYTE_ORDER == __LITTLE_ENDIAN
 	unsigned int __w_termsig:7; /* Terminating signal.  */
 	unsigned int __w_coredump:1; /* Set if dumped core.  */
 	unsigned int __w_retcode:8; /* Return code if exited normally.  */
 	unsigned int:16;
-#endif				/* Little endian.  */
-#if	__BYTE_ORDER == __BIG_ENDIAN
+# endif				/* Little endian.  */
+# if	__BYTE_ORDER == __BIG_ENDIAN
 	unsigned int:16;
 	unsigned int __w_retcode:8;
 	unsigned int __w_coredump:1;
 	unsigned int __w_termsig:7;
-#endif				/* Big endian.  */
+# endif				/* Big endian.  */
       } __wait_terminated;
     struct
       {
-#if	__BYTE_ORDER == __LITTLE_ENDIAN
+# if	__BYTE_ORDER == __LITTLE_ENDIAN
 	unsigned int __w_stopval:8; /* W_STOPPED if stopped.  */
 	unsigned int __w_stopsig:8; /* Stopping signal.  */
 	unsigned int:16;
-#endif				/* Little endian.  */
-#if	__BYTE_ORDER == __BIG_ENDIAN
+# endif				/* Little endian.  */
+# if	__BYTE_ORDER == __BIG_ENDIAN
 	unsigned int:16;
 	unsigned int __w_stopsig:8; /* Stopping signal.  */
 	unsigned int __w_stopval:8; /* W_STOPPED if stopped.  */
-#endif				/* Big endian.  */
+# endif				/* Big endian.  */
       } __wait_stopped;
   };
 
-#define	w_termsig	__wait_terminated.__w_termsig
-#define	w_coredump	__wait_terminated.__w_coredump
-#define	w_retcode	__wait_terminated.__w_retcode
-#define	w_stopsig	__wait_stopped.__w_stopsig
-#define	w_stopval	__wait_stopped.__w_stopval
+# define w_termsig	__wait_terminated.__w_termsig
+# define w_coredump	__wait_terminated.__w_coredump
+# define w_retcode	__wait_terminated.__w_retcode
+# define w_stopsig	__wait_stopped.__w_stopsig
+# define w_stopval	__wait_stopped.__w_stopval
 
 #endif	/* Use BSD.  */