update from main archive 970225cvs/libc-970225

1997-02-24 23:05  Wolfram Gloger  <wmglo@dent.med.uni-muenchen.de>

	* malloc/malloc.c (malloc_get_state): New function.
	Saves global malloc state to an opaque data structure which
	is dynamically allocated in the heap.
	* malloc/malloc.c (malloc_set_state): New function.
	Restore previously obtained state.
	* malloc/malloc.h: Add declaration of malloc_get_state()
	and malloc_set_state().

1997-02-24 23:27  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/libm-ieee754/s_cbrtl.c: Shift B1_EXP value to right
	position.

1997-02-24 17:38  Ulrich Drepper  <drepper@cygnus.com>

	* misc/error.c: Make error and error_at_line weak aliases of
	__error and __error_at_line respectively.
	Suggested by David Mosberger-Tang <davidm@AZStarNet.COM>.

	* sysdeps/unix/sysv/linux/i386/socket.S: Update copyright.

1997-02-22 11:30  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* elf/ldd.bash.in: Run the program directly, not as argument
	to the dynamic linker, if it contains an interpreter segment.
	* elf/ldd.sh.in: Likewise.

	* elf/rtld.c (dl_main): In verify mode check whether the dynamic
	object contains an interpreter segment and exit with 2 if not.

1997-02-23 01:23  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* Makefile (distribute): Remove nsswitch.h, netgroup.h, mcheck.h
	and xlocale.h.  Make-dist adds them automagically.

1997-02-22 12:25  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* locale/C-time.c (_nl_C_LC_TIME): Add missing entry for
	time-era-num-entries.

1997-02-06 13:49  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* rellns-sh: No need to check for existance of first parameter.

1997-02-24 15:20  Jonathan T. Agnew  <jtagnew@amherst.edu>

	* glibcbug.in: Don't mention destination on MAIL_AGENT command line
	to avoid duplicate mail.

1997-02-24 03:51  Ulrich Drepper  <drepper@cygnus.com>

	* Makefile (distribute): Add isomac.c.
	(tests): Run isomac test.

	* features.h (__USE_ISOC9X): New macro.

	* catgets/catgets.c: Don't use global variable `optind'.  Instead
	use result computed by argp_parse.
	* db/makedb: Likewise.
	* locale/programs/locale.c: Likewise.
	* locale/programs/localedef.c: Likewise.

	* libio/stdio.h: Rewrite.  Make it more readable and add comments.

	* libio/clearerr.c: Remove clearerr_locked alias.
	* libio/feof.c: Remove feof_locked alias.
	* libio/ferror.c: Remove feof_locked alias.
	* libio/fileno.c: Remove fileno_locked alias.
	* libio/fputc.c: Remove fputc_locked alias.
	* libio/getc.c: Remove getc_locked alias.
	* libio/getchar.c: Remove getchar_locked alias.
	* libio/iofflush.c: Remove fflush_locked alias.
	* libio/putc.c: Remove putc_locked alias.
	* libio/putc.c: Remove putchar_locked alias.

	* stdio-common/printf_fp.c: When number is inifinity print INF
	or inf depending on case of specifier.  Same for NaN where NAN
	or nan is printed.  Specified in ISO C 9X.

	* misc/sys/cdefs.h (__restrict): Define to empty string for now.
	* stdio/stdio.h: Add __restrict to prototypes where necessary.
	* libio/stdio.h: Likewise.
	* stdlib/stdlib.h: Likewise.
	* string/string.h: Likewise.
	* time/time.h: Likewise.
	* wcsmbs/wchar.h: Likewise.

	* stdlib/strtod.c: Change to recognize INF, INFINITY, NAN, and
	NAN(...).

	* sysdeps/ieee754/huge_val.h: Define HUGE_VALF and HUGE_VALL instead
	of HUGE_VALf and HUGE_VALL.
	* stdlib/strtof.c (FLOAT_HUGE_VAL): Use standard name HUGE_VALF
	instead of HUGE_VALf.
	* wcsmbs/wcstof.c: Likewise.
	* stdlib/strtold.c (FLOAT_HUGE_VAL): Use standard name HUGE_VALL
	instead of HUGE_VALl.
	* wcsmbs/wcstold.c: Likewise.

	* sysdeps/posix/gai_strerror.c: Use size_t for counter variable to
	avoid warning.

	* wcsmbs/Makefile (routines): Add wcscasecmp and wcsncase.
	* wcsmbs/wchar.h: Add prototypes for wcscasecmp and wcsncase.
	* wcsmbs/wcscasecmp.c: New file.
	* wcsmbs/wcsncase.c: New file.

	* stdlib/strtol.c: Define wide character quad word functions as
	wcstoll and wcstoull and normal versions as strtoll and strtoull.
	* wcsmbs/wchar.h: Add prototypes for wcstoll and wcstoull.
	* wcsmbs/wcstoq: Renamed to wcstoll.c.
	* wcsmbs/wcstouq: Renamed to wcstoull.c.
	* wcsmbs/wcstoll.c: Renamed from wcstoq.c.  Make wcstoq a weak
	alias of wcstoll.
	* wcsmbs/wcstoull.c: Renamed from wcstouq.c.  Make wcstouq a weak
	alias of wcstoull.
	* wcsmbs/Makefile (routines): Replace wcstoq and wcstouq by
	wcstoll and wcstoull respectively.
	* stdlib/strtoq.c: Rename to strtoll.c.
	* stdlib/strtouq.c: Rename to strtoull.c.
	* stdlib/strtoll.c: Renamed from strtoq.c.  Make strtoq a weak
	alias of strtoll.
	* stdlib/strtoll.c: Renamed from strtouq.c.  Make strtouq a weak
	alias of strtoull.
	* stdlib/Makefile (routines): Replace strtoq and strtouq by
	strtoll and strtoull respectively.
	* stdio-common/vfscanf.c: Don't use __strtoq_internal and
	__strtouq_internal but instead __strtoll_internal and
	__strtoull_internal respectively.
	* stdlib/stdlib.h (strtoq): Use __internal_strtoll in inline version.
	(strtouq): Similar with __internal_strtoull.
	* wcsmbs/wchar.h (wcstoq): Use __internal_wcstoll in inline version.
	(wcstouq): Similar with __internal_wcstoull.

1997-02-23 04:38  Ulrich Drepper  <drepper@cygnus.com>

	* stdlib/strtol.c (STRTOL): It is not illegal to parse a minus
	sign in the strtouXX functions.  The results gets simply negated.
	* stdio-common/tstscanf.c: Add testcase for above case.
	* stdlib/tst-strtol.c: Correct tests.

	* manual/stdio-fp.c: New file.  Generate output for example program
	in stdio.texi.

	* stdio-common/Makefile (routines): Add printf_fphex.
	* stdio-common/vfprintf.c: Add handling of %a and %A specifier.
	* stdio-common/printf_fphex.c: New file.  Implement %a and %A
	specifier.

1997-02-22 03:01  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/timebits.h (CLK_TCK): Don't defined if
	__STRICT_ANSI__.

	* math/math.h: Prevent definition of struct exception when using
	C++.

1997-02-22 01:45  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/syscalls.list: Dup takes only one argument.
	Reported by Greg McGary.

1997-02-21 00:22  Miles Bader  <miles@gnu.ai.mit.edu>
1997-02-20 01:28  Miles Bader  <miles@gnu.ai.mit.edu>
1997-02-19 13:56  Miles Bader  <miles@gnu.ai.mit.edu>
1997-02-18 15:39  Miles Bader  <miles@gnu.ai.mit.edu>
1997-02-17 10:58  Miles Bader  <miles@gnu.ai.mit.edu>
1997-02-15 10:23  Miles Bader  <miles@gnu.ai.mit.edu>
	(mutex_lock, mutex_unlock, mutex_trylock): Defined in terms of
	__mutex_*.
	(mutex_t): Type removed & replaced by new macro.
	(tsd_key_t): Typedef to int instead of pthread_key_t.
	(tsd_key_create, tsd_setspecific, tsd_getspecific): New macros.
	(__pthread_initialize): New macro, work around assumption of pthreads.

	* sysdeps/mach/hurd/i386/init-first.c (__libc_argv, __libc_argc):
	__hurd_sigthread_stack_end, __hurd_sigthread_stack_variables,
	__hurd_threadvar_max, __hurd_threadvar_stack_offset,
	__hurd_threadvar_stack_mask): Variables removed.
1997-02-14 14:07  Miles Bader  <miles@gnu.ai.mit.edu>
	* hurd/hurd.h (_hurd_pids_changed_stamp, _hurd_pids_changed_sync):
1997-02-24 17:06  Geoffrey Keating  <geoffk@discus.anu.edu.au>

	* sysdeps/unix/sysv/linux/accept.S (NARGS): Describe number of
	arguments taken, for sysdeps/unix/sysv/linux/powerpc/socket.S.
	* sysdeps/unix/sysv/linux/bind.S: Likewise.
	* sysdeps/unix/sysv/linux/connect.S: Likewise.
	* sysdeps/unix/sysv/linux/getpeername.S: Likewise.
	* sysdeps/unix/sysv/linux/getsockname.S: Likewise.
	* sysdeps/unix/sysv/linux/getsockopt.S: Likewise.
	* sysdeps/unix/sysv/linux/listen.S: Likewise.
	* sysdeps/unix/sysv/linux/recv.S: Likewise.
	* sysdeps/unix/sysv/linux/recvfrom.S: Likewise.
	* sysdeps/unix/sysv/linux/recvmsg.S: Likewise.
	* sysdeps/unix/sysv/linux/send.S: Likewise.
	* sysdeps/unix/sysv/linux/sendmsg.S: Likewise.
	* sysdeps/unix/sysv/linux/sendto.S: Likewise.
	* sysdeps/unix/sysv/linux/setsockopt.S: Likewise.
	* sysdeps/unix/sysv/linux/shutdown.S: Likewise.
	* sysdeps/unix/sysv/linux/socketpair.S: Likewise.

1997-02-15 04:51  Ulrich Drepper  <drepper@cygnus.com>

11 files changed, 556 insertions, 290 deletions

diff --git a/libio/clearerr.c b/libio/clearerr.c
index 7c7fb93dc0..4776250ff8 100644
--- a/libio/clearerr.c
+++ b/libio/clearerr.c
@@ -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.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -28,7 +28,3 @@ clearerr (fp)
   _IO_clearerr (fp);
   _IO_funlockfile (fp);
 }
-
-#ifdef _IO_MTSAFE_IO
-weak_alias (clearerr, clearerr_locked)
-#endif
diff --git a/libio/feof.c b/libio/feof.c
index 34ca1da161..23674704d6 100644
--- a/libio/feof.c
+++ b/libio/feof.c
@@ -36,11 +36,3 @@ _IO_feof (fp)
   return result;
 }
 weak_alias (_IO_feof, feof)
-
-#ifdef _IO_MTSAFE_IO
-/* The feof implementation for libio does not require locking because
-   it only accesses once a single variable and this is already atomic
-   (at least at thread level).  */
-
-weak_alias (_IO_feof, feof_locked)
-#endif
diff --git a/libio/ferror.c b/libio/ferror.c
index 4f75092149..b9ed64587c 100644
--- a/libio/ferror.c
+++ b/libio/ferror.c
@@ -36,8 +36,3 @@ _IO_ferror (fp)
   return result;
 }
 weak_alias (_IO_ferror, ferror)
-
-#ifdef _IO_MTSAFE_IO
-
-weak_alias (ferror, ferror_locked)
-#endif
diff --git a/libio/fileno.c b/libio/fileno.c
index 08e657b970..269ecb875a 100644
--- a/libio/fileno.c
+++ b/libio/fileno.c
@@ -43,5 +43,4 @@ fileno (fp)
    (at least at thread level).  */
 
 weak_alias (fileno, fileno_unlocked)
-weak_alias (fileno, fileno_locked)
 #endif
diff --git a/libio/fputc.c b/libio/fputc.c
index 89359dc46d..e1f10f1b20 100644
--- a/libio/fputc.c
+++ b/libio/fputc.c
@@ -38,5 +38,3 @@ fputc (c, fp)
   _IO_cleanup_region_end (1);
   return result;
 }
-
-weak_alias (fputc, fputc_locked)
diff --git a/libio/getc.c b/libio/getc.c
index eede63984f..d3e89fcc27 100644
--- a/libio/getc.c
+++ b/libio/getc.c
@@ -41,9 +41,3 @@ _IO_getc (fp)
 }
 #undef getc
 weak_alias (_IO_getc, getc)
-
-#ifdef _IO_MTSAFE_IO
-# undef getc_locked
-
-weak_alias (getc, getc_locked)
-#endif
diff --git a/libio/getchar.c b/libio/getchar.c
index aa675591ad..25eb2b10ae 100644
--- a/libio/getchar.c
+++ b/libio/getchar.c
@@ -37,9 +37,3 @@ getchar ()
   _IO_cleanup_region_end (1);
   return result;
 }
-
-#ifdef _IO_MTSAFE_IO
-# undef getchar_locked
-
-weak_alias (getchar, getchar_locked)
-#endif
diff --git a/libio/iofflush.c b/libio/iofflush.c
index af69486164..96cb49b2dc 100644
--- a/libio/iofflush.c
+++ b/libio/iofflush.c
@@ -44,7 +44,3 @@ _IO_fflush (fp)
 }
 
 weak_alias (_IO_fflush, fflush)
-
-#ifdef _IO_MTSAFE_IO
-weak_alias (_IO_fflush, fflush_locked)
-#endif
diff --git a/libio/putc.c b/libio/putc.c
index 5aa3b68137..6d84f24995 100644
--- a/libio/putc.c
+++ b/libio/putc.c
@@ -1,20 +1,20 @@
-/* Copyright (C) 1991, 1995, 1996 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
+/* Copyright (C) 1991, 1995, 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
-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 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.
+   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., 675 Mass Ave,
-Cambridge, MA 02139, USA.  */
+   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.  */
 
 #include "libioP.h"
 #include "stdio.h"
@@ -36,9 +36,3 @@ _IO_putc (c, fp)
 }
 #undef putc
 weak_alias (_IO_putc, putc)
-
-#ifdef _IO_MTSAFE_IO
-# undef putc_locked
-
-weak_alias (putc, putc_locked)
-#endif
diff --git a/libio/putchar.c b/libio/putchar.c
index 7822a31a1a..b8a41ebf76 100644
--- a/libio/putchar.c
+++ b/libio/putchar.c
@@ -1,20 +1,20 @@
-/* Copyright (C) 1991, 1995, 1996 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
+/* Copyright (C) 1991, 1995, 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
-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 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.
+   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., 675 Mass Ave,
-Cambridge, MA 02139, USA.  */
+   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.  */
 
 #include "libioP.h"
 #include "stdio.h"
@@ -33,9 +33,3 @@ putchar (c)
   __libc_cleanup_region_end (1);
   return result;
 }
-
-#ifdef _IO_MTSAFE_IO
-# undef putchar_locked
-
-weak_alias (putchar, putchar_locked)
-#endif
diff --git a/libio/stdio.h b/libio/stdio.h
index 88e9c6a985..0ed711a8cb 100644
--- a/libio/stdio.h
+++ b/libio/stdio.h
@@ -1,209 +1,191 @@
-/* This is part of the iostream/stdio library, providing -*- C -*- I/O.
-   Define ANSI C stdio on top of C++ iostreams.
+/* Define ISO C stdio on top of C++ iostreams.
    Copyright (C) 1991, 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
 
-This 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 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.
 
-This 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 this library; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-*/
+   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.  */
 
 /*
  *	ISO C Standard: 4.9 INPUT/OUTPUT	<stdio.h>
  */
 
 #ifndef _STDIO_H
-#define _STDIO_H
+
+#if !defined __need_FILE
+#define _STDIO_H	1
+#include <features.h>
+
+__BEGIN_DECLS
+
+#define __need_size_t
+#define	__need_NULL
+#include <stddef.h>
+
+#include <gnu/types.h>
+#endif /* Don't need FILE.  */
+#undef	__need_FILE
+
+
+#ifndef	__FILE_defined
+
+/* The opaque type of streams.  */
+typedef struct _IO_FILE FILE;
+
+#define	__FILE_defined	1
+#endif /* FILE not defined.  */
+
+
+#ifdef	_STDIO_H
 #define _STDIO_USES_IOSTREAM
 
 #include <libio.h>
 
-#ifndef NULL
-#ifdef __cplusplus
-#define NULL 0
-#else
-#define NULL (void*)0
-#endif
-#endif
+/* The type of the second argument to `fgetpos' and `fsetpos'.  */
+typedef _G_fpos_t fpos_t;
 
-#ifndef EOF
-#define EOF (-1)
-#endif
+
+/* Generate a unique file name (and possibly open it with mode "w+b").  */
+extern char *__stdio_gen_tempname __P ((char *__buf, size_t __bufsize,
+					__const char *__dir,
+					__const char *__pfx,
+					int __dir_search,
+					size_t *__lenptr,
+					FILE **__streamptr));
+
+
+/* Print out MESSAGE on the error output and abort.  */
+extern void __libc_fatal __P ((__const char *__message))
+     __attribute__ ((__noreturn__));
+
+
+/* The possibilities for the third argument to `setvbuf'.  */
+#define _IOFBF 0 		/* Fully buffered.  */
+#define _IOLBF 1		/* Line buffered.  */
+#define _IONBF 2		/* No buffering.  */
+
+
+/* Default buffer size.  */
 #ifndef BUFSIZ
 #define BUFSIZ _IO_BUFSIZ
 #endif
 
-#define _IOFBF 0 /* Fully buffered. */
-#define _IOLBF 1 /* Line buffered. */
-#define _IONBF 2 /* No buffering. */
-
-#define SEEK_SET 0
-#define SEEK_CUR 1
-#define SEEK_END 2
-
- /* define size_t.  Crud in case <sys/types.h> has defined it. */
-#if !defined(_SIZE_T) && !defined(_T_SIZE_) && !defined(_T_SIZE)
-#if !defined(__SIZE_T) && !defined(_SIZE_T_) && !defined(___int_size_t_h)
-#if !defined(_GCC_SIZE_T) && !defined(_SIZET_)
-#define _SIZE_T
-#define _T_SIZE_
-#define _T_SIZE
-#define __SIZE_T
-#define _SIZE_T_
-#define ___int_size_t_h
-#define _GCC_SIZE_T
-#define _SIZET_
-typedef _IO_size_t size_t;
-#endif
-#endif
+
+/* End of file character.
+   Some things throughout the library rely on this being -1.  */
+#ifndef EOF
+#define EOF (-1)
 #endif
 
-typedef struct _IO_FILE FILE;
-typedef _IO_fpos_t fpos_t;
 
-#include <stdio_lim.h>
+/* The possibilities for the third argument to `fseek'.
+   These values should not be changed.  */
+#define SEEK_SET	0	/* Seek from beginning of file.  */
+#define SEEK_CUR	1	/* Seek from current position.  */
+#define SEEK_END	2	/* Seek from end of file.  */
+
 
 #ifdef	__USE_SVID
 /* Default path prefix for `tempnam' and `tmpnam'.  */
 #define P_tmpdir      "/tmp"
 #endif
 
-/* For use by debuggers. These are linked in if printf or fprintf are used. */
-extern FILE *stdin, *stdout, *stderr; /* TODO */
 
+/* Get the values:
+   L_tmpnam	How long an array of chars must be to be passed to `tmpnam'.
+   TMP_MAX	The minimum number of unique filenames generated by tmpnam
+   		(and tempnam when it uses tmpnam's name space),
+		or tempnam (the two are separate).
+   L_ctermid	How long an array to pass to `ctermid'.
+   L_cuserid	How long an array to pass to `cuserid'.
+   FOPEN_MAX	Minimum number of files that can be open at once.
+   FILENAME_MAX	Maximum length of a filename.  */
+#include <stdio_lim.h>
+
+
+/* Standard streams.  */
+extern FILE *stdin, *stdout, *stderr;
+/* Refer to the real names by default.  */
 #define stdin _IO_stdin
 #define stdout _IO_stdout
 #define stderr _IO_stderr
 
-#ifdef __cplusplus
-extern "C" {
-#endif
 
-#ifndef __P
-#if defined(__STDC__) || defined(__cplusplus) || defined(c_plusplus)
-#define __P(args) args
-#else
-#define __P(args) ()
-#endif
-#endif /*!__P*/
-
-extern void clearerr __P ((FILE*));
-extern int fclose __P ((FILE*));
-extern int feof __P ((FILE*));
-extern int ferror __P ((FILE*));
-extern int fflush __P ((FILE*));
-extern int fgetc __P ((FILE *));
-extern int fgetpos __P ((FILE* fp, fpos_t *pos));
-extern char* fgets __P ((char*, int, FILE*));
-extern FILE* fopen __P ((__const char*, __const char*));
-extern FILE* fopencookie __P ((void *cookie, __const char *mode,
-			       _IO_cookie_io_functions_t io_functions));
-extern int fprintf __P ((FILE*, __const char* format, ...));
-extern int fputc __P ((int, FILE*));
-extern int fputs __P ((__const char *str, FILE *fp));
-extern size_t fread __P ((void*, size_t, size_t, FILE*));
-extern FILE* freopen __P ((__const char*, __const char*, FILE*));
-extern int fscanf __P ((FILE *fp, __const char* format, ...));
-extern int fseek __P ((FILE* fp, long int offset, int whence));
-extern int fsetpos __P ((FILE* fp, __const fpos_t *pos));
-extern long int ftell __P ((FILE* fp));
-extern size_t fwrite __P ((__const void*, size_t, size_t, FILE*));
-extern int getc __P ((FILE *));
-extern int getchar __P ((void));
-extern char* gets __P ((char*));
-extern void perror __P ((__const char *));
-extern int printf __P ((__const char* format, ...));
-extern int putc __P ((int, FILE *));
-extern int putchar __P ((int));
-extern int puts __P ((__const char *str));
-extern int remove __P ((__const char*));
-extern int rename __P ((__const char* _old, __const char* _new));
-extern void rewind __P ((FILE*));
-extern int scanf __P ((__const char* format, ...));
-extern void setbuf __P ((FILE*, char*));
-extern void setlinebuf __P ((FILE*));
-extern void setbuffer __P ((FILE*, char*, int));
-extern int setvbuf __P ((FILE*, char*, int mode, size_t size));
-extern int sprintf __P ((char*, __const char* format, ...));
-extern int sscanf __P ((__const char* string, __const char* format, ...));
-extern FILE* tmpfile __P ((void));
-extern char* tmpnam __P ((char*));
-#ifdef	__USE_MISC
-extern char* tmpnam_r __P ((char*));
+/* Remove file FILENAME.  */
+extern int remove __P ((__const char *__filename));
+/* Rename file OLD to NEW.  */
+extern int rename __P ((__const char *__old, __const char *__new));
+
+
+/* Create a temporary file and open it read/write.  */
+extern FILE *tmpfile __P ((void));
+/* Generate a temporary filename.  */
+extern char *tmpnam __P ((char *__s));
+
+#ifdef __USE_MISC
+/* This is the reentrant variant of `tmpnam'.  The only difference is
+   that it does not allow S to be NULL.  */
+extern char *tmpnam_r __P ((char *__s));
 #endif
-#if defined(__USE_SVID) || defined(__USE_XOPEN)
+
+
+#if defined __USE_SVID || defined __USE_XOPEN
+/* Generate a unique temporary filename using up to five characters of PFX
+   if it is not NULL.  The directory to put this file in is searched for
+   as follows: First the environment variable "TMPDIR" is checked.
+   If it contains the name of a writable directory, that directory is used.
+   If not and if DIR is not NULL, that value is checked