Update.

1997-10-29 21:20  Ulrich Drepper  <drepper@cygnus.com>

	* libio/strops.c (_IO_str_seekoff): If mode is zero and the read/write
	pointers are tied set mode according to current stream mode.

	* include/features.h [_GNU_SOURCE] (_POSIX_C_SOURCE): Define to
	199506L.
	Define _XOPEN_SOURCE to 500 if _POSIX_C_SOURCE is defined.
	* manual/creature.texi: Describe this.

	* manual/socket.texi: Describe connect, accept, send, sendmsg, sendto,
	recv, recvfrom, and recvmsg as cancelation points.
	* sysdeps/unix/inet/syscalls.list: Add __libc_* names for these
	functions.

1997-10-17  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* Make-dist (try-sysdeps): Don't look for stub files anymore.

	* manual/maint.texi (Porting): Remove another reference to stub
	directory.

	* sysdeps/unix/bsd/sun/sethostid.c: Include stub version from
	generic subdir.
	* sysdeps/unix/sysv/irix4/reboot.c: Likewise.
	* sysdeps/unix/sysv/irix4/swapon.c: Likewise

1997-10-29 03:54  Ulrich Drepper  <drepper@cygnus.com>

	* resolv/nss_dns/dns-host.c: Change variable pointed to by h_errnop
	in all error cases (PR 244).

1997-10-29 00:56  Ulrich Drepper  <drepper@cygnus.com>

	* posix/glob.c: Fix handling of expressions like "*/" (PR 325).
	Optimize by using mempcpy.

1997-10-17  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* po/Makefile ($(mo-installed)): Don't fail during installation if
	files don't exist (might happen if msgfmt doesn't exist) (PR 328).
	Suggested by Wolfram Gloger <wmglo@dent.med.uni-muenchen.de>.

1997-10-24  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* sysdeps/generic/bits/errno.h (ENOMSG): Define it.
	Pointed out by Klaus Espenlaub
	<kespenla@hydra.informatik.uni-ulm.de> (PR libc/259).

1997-10-28 17:40  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/libm-ieee754/s_cbrt.c: Testing the returned exponent for
	zero isn't enough to determine illegal arguments.
	* sysdeps/libm-ieee754/s_cbrtf.c: Likewise.
	* sysdeps/libm-ieee754/s_cbrtl.c: Likewise.

1997-10-28 17:14  Ulrich Drepper  <drepper@cygnus.com>

	* manual/filesys.texi (S_ISVTX): Describe that it is available with
	_BSD_SOURCE only.
	Reported by Jochen Hein <jochen.hein@delphi.central.de>.

1997-10-28 04:26  Ulrich Drepper  <drepper@cygnus.com>

	* time/tzfile.c (__tzfile_compute): Use negated value of offset for
	timezone variable.
	* time/tzset.c (tz_compute): Likewise.
	Reported by Erik Troan <ewt@redhat.com>.

1997-10-28 02:51  Ulrich Drepper  <drepper@cygnus.com>

	* manual/filesys.texi: Correct prototype in readdir_r description.
	Reported by Jim Meyering <meyering@eng.ascend.com>.

1997-10-27  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* math/libm-test.c (cbrt_test): Add test for cbrt(0.970299).

1997-10-26 19:39  Zack Weinberg  <zack@rabi.phys.columbia.edu>

	* stdlib/l64a.c: Produce a useful result for n < 0.
	* stdlib/a64l.c: Use unsigned type for working variable.
	* manual/string.texi (general): Grammar, typo, overfull fixes.
	(strlen): Insert warning about sizeof(char *).
	(a64l, l64a): Make documentation agree with implementation.

	* libio/iofdopen.c: Use _IO_FILE_complete, not _IO_FILE_plus.
	* posix/unistd.h: Add prototypes for __pread, __pread64, __pwrite

ChangeLog

@@ -1,8 +1,94 @@
+1997-10-29 21:20  Ulrich Drepper  <drepper@cygnus.com>
+
+	* libio/strops.c (_IO_str_seekoff): If mode is zero and the read/write
+	pointers are tied set mode according to current stream mode.
+
+	* include/features.h [_GNU_SOURCE] (_POSIX_C_SOURCE): Define to
+	199506L.
+	Define _XOPEN_SOURCE to 500 if _POSIX_C_SOURCE is defined.
+	* manual/creature.texi: Describe this.
+
+	* manual/socket.texi: Describe connect, accept, send, sendmsg, sendto,
+	recv, recvfrom, and recvmsg as cancelation points.
+	* sysdeps/unix/inet/syscalls.list: Add __libc_* names for these
+	functions.
+
+1997-10-17  Andreas Jaeger  <aj@arthur.rhein-neckar.de>
+
+	* Make-dist (try-sysdeps): Don't look for stub files anymore.
+
+	* manual/maint.texi (Porting): Remove another reference to stub
+	directory.
+
+	* sysdeps/unix/bsd/sun/sethostid.c: Include stub version from
+	generic subdir.
+	* sysdeps/unix/sysv/irix4/reboot.c: Likewise.
+	* sysdeps/unix/sysv/irix4/swapon.c: Likewise
+
+1997-10-29 03:54  Ulrich Drepper  <drepper@cygnus.com>
+
+	* resolv/nss_dns/dns-host.c: Change variable pointed to by h_errnop
+	in all error cases (PR 244).
+
+1997-10-29 00:56  Ulrich Drepper  <drepper@cygnus.com>
+
+	* posix/glob.c: Fix handling of expressions like "*/" (PR 325).
+	Optimize by using mempcpy.
+
+1997-10-17  Andreas Jaeger  <aj@arthur.rhein-neckar.de>
+
+	* po/Makefile ($(mo-installed)): Don't fail during installation if
+	files don't exist (might happen if msgfmt doesn't exist) (PR 328).
+	Suggested by Wolfram Gloger <wmglo@dent.med.uni-muenchen.de>.
+
+1997-10-24  Andreas Jaeger  <aj@arthur.rhein-neckar.de>
+
+	* sysdeps/generic/bits/errno.h (ENOMSG): Define it.
+	Pointed out by Klaus Espenlaub
+	<kespenla@hydra.informatik.uni-ulm.de> (PR libc/259).
+
+1997-10-28 17:40  Ulrich Drepper  <drepper@cygnus.com>
+
+	* sysdeps/libm-ieee754/s_cbrt.c: Testing the returned exponent for
+	zero isn't enough to determine illegal arguments.
+	* sysdeps/libm-ieee754/s_cbrtf.c: Likewise.
+	* sysdeps/libm-ieee754/s_cbrtl.c: Likewise.
+
+1997-10-28 17:14  Ulrich Drepper  <drepper@cygnus.com>
+
+	* manual/filesys.texi (S_ISVTX): Describe that it is available with
+	_BSD_SOURCE only.
+	Reported by Jochen Hein <jochen.hein@delphi.central.de>.
+
+1997-10-28 04:26  Ulrich Drepper  <drepper@cygnus.com>
+
+	* time/tzfile.c (__tzfile_compute): Use negated value of offset for
+	timezone variable.
+	* time/tzset.c (tz_compute): Likewise.
+	Reported by Erik Troan <ewt@redhat.com>.
+
+1997-10-28 02:51  Ulrich Drepper  <drepper@cygnus.com>
+
+	* manual/filesys.texi: Correct prototype in readdir_r description.
+	Reported by Jim Meyering <meyering@eng.ascend.com>.
+
+1997-10-27  Andreas Jaeger  <aj@arthur.rhein-neckar.de>
+
+	* math/libm-test.c (cbrt_test): Add test for cbrt(0.970299).
+
+1997-10-26 19:39  Zack Weinberg  <zack@rabi.phys.columbia.edu>
+
+	* stdlib/l64a.c: Produce a useful result for n < 0.
+	* stdlib/a64l.c: Use unsigned type for working variable.
+	* manual/string.texi (general): Grammar, typo, overfull fixes.
+	(strlen): Insert warning about sizeof(char *).
+	(a64l, l64a): Make documentation agree with implementation.
+
 1997-10-26 18:12  Ulrich Drepper  <drepper@cygnus.com>
 
 	* libio/genops.c: Partial undo of last patch.
 	* libio/stdfiles.c: Likewise.
-	* libio/iofdopen.c: Use _IO_FILE_complete, not _IO_file_plus.
+	* libio/iofdopen.c: Use _IO_FILE_complete, not _IO_FILE_plus.
 	* libio/iopopen.c: Likewise.
 	* libio/iovdprintf.c: Likewise.
 	* libio/libio.h: Remove duplicated `;'.
@@ -21,7 +107,7 @@
 
 	* posix/unistd.h: Add explanation of _POSIX_* constants.
 
-	* posix/unists.h: Add prototypes for __pread, __pread64, __pwrite
+	* posix/unistd.h: Add prototypes for __pread, __pread64, __pwrite
 	and __pwrite64.
 	* sysdeps/generic/pread.c: Define as __pread and make pread weak alias.
 	* sysdeps/generic/pread64.c: Likewise.

FAQ

@@ -97,6 +97,9 @@ please let me know.
 [Q27]	``Programs like `logname', `top', `uptime' `users', `w' and
 	  `who', show incorrect information about the (number of)
 	  users on my system.  Why?''
+
+[Q28]	``After upgrading to a glibc 2.1 with symbol versioning I get
+	  errors about undefined symbols.  What went wrong?''
 
 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
 [Q1]	``What systems does the GNU C Library run on?''
@@ -733,13 +736,32 @@ symlink that you have in place before you install glibc.  However,
 [A27] {MK} See Q10.
 
 
+~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
+[Q28]	``After upgrading to a glibc 2.1 with symbol versioning I get
+	  errors about undefined symbols.  What went wrong?''
+
+[A28] {AJ} In a versioned libc a lot of symbols are now local that
+have been global symbols in previous versions. When defining a extern
+variable both in a user program and extern in the libc the links
+resolves this to only one reference - the one in the library. The
+problem is caused by either wrong program code or tools. In no case
+the global variables from libc should be used by any program. Since
+these reference are now local, you might see a message like:
+
+"msgfmt: error in loading shared libraries: : undefined symbol: _nl_domain_bindings"
+
+The only way to fix this is to recompile your program. Sorry, that's
+the price you might have to pay once for quite a number of advantages
+with symbol versioning.
+
+
 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
 
 Answers were given by:
 {UD} Ulrich Drepper, <drepper@cygnus.com>
 {DMT} David Mosberger-Tang, <davidm@AZStarNet.com>
-{RM} Roland McGrath, <roland@gnu.ai.mit.edu>
-{HJL} H.J. Lu, <hjl@gnu.ai.mit.edu>
+{RM} Roland McGrath, <roland@gnu.org>
+{HJL} H.J. Lu, <hjl@gnu.org>
 {AJ} Andreas Jaeger, <aj@arthur.rhein-neckar.de>
 {EY} Eric Youngdale, <eric@andante.jic.com>
 {PB} Phil Blundell, <Philip.Blundell@pobox.com>

Make-dist

@@ -88,15 +88,13 @@ sources += $(addsuffix .c,$(elided-routines) \
 +maybe-sysdeps := $(sources) $(sources:.c=.s) $(sources:.c=.S) $(all-headers) \
 		  $(filter %.c %.S %.s %.h %.sub,$(distribute))
 foo:=$(shell echo '+maybe-sysdeps=$(+maybe-sysdeps)'>&2)
-# Find all the files that have a stub or generic version.
-try-sysdeps := $(foreach dir,$(..)sysdeps/stub $(..)sysdeps/generic \
-			     $(..)sysdeps/libm-ieee754,\
+# Find all the files that have a generic version.
+try-sysdeps := $(foreach dir,$(..)sysdeps/generic $(..)sysdeps/libm-ieee754,\
 			     $(addprefix $(dir)/,$(+maybe-sysdeps)))
 foo:=$(shell echo 'try-sysdeps=$(try-sysdeps)'>&2)
 +sysdeps := $(wildcard $(try-sysdeps))
-foo:=$(shell echo 'stub/generic +sysdeps=$(+sysdeps)'>&2)
+foo:=$(shell echo 'generic +sysdeps=$(+sysdeps)'>&2)
 +sysdep-names := $(sort $(patsubst $(..)sysdeps/generic/%,%,\
-				   $(patsubst $(..)sysdeps/stub/%,%,\
 				   $(patsubst $(..)sysdeps/libm-ieee754/%,%,\
 					      $(+sysdeps)))))
 foo:=$(shell echo '+sysdep-names=$(+sysdep-names)' >&2)

SNAP

@@ -99,7 +99,7 @@ diff will be relative to the source tree after applying all previous
 daily diffs.  The daily diffs are for people who have relatively low
 bandwidth ftp or uucp connections.
 
-The files will be available via anonymous ftp from alpha.gnu.ai.mit.edu, in
+The files will be available via anonymous ftp from alpha.gnu.org, in
 directory /gnu/libc and on linux.kernel.org in /pub/software/libs/glibc.  The
 directories should look something like:
 
@@ -110,9 +110,9 @@ directories should look something like:
 	.
 	.
 
-Please note that the snapshots on alpha.gnu.ai.mit.edu and on
+Please note that the snapshots on alpha.gnu.org and on
 linux.kernel.org are not always in sync. Patches to some files might
-appear a day a diff earlier or later on alpha than on kernel. 
+appear a day a diff earlier or later on alpha than on kernel.
 Use always alpha or always kernel but don't mix them.
 
 There are sometimes additionally test releases of the add-ons available in
@@ -155,13 +155,13 @@ GETTING HELP, GLIBC DISCUSSIONS, etc
 ------------------------------------
 
 People who want to help with glibc and who test out snapshots regularly should
-get on the libc-alpha@gnu.ai.mit.edu mailing list by sending an email to
-libc-alpha-request@gnu.ai.mit.edu.  This list is meant (as the name suggests)
+get on the libc-alpha@gnu.org mailing list by sending an email to
+libc-alpha-request@gnu.org.  This list is meant (as the name suggests)
 for the discussion of test releases and also reports for them.  People who are
 on this list are welcome to post questions of general interest.
 
 People who are not only willing to test the snapshots but instead really want
-to help developing glibc should contact libc-hacker-request@gnu.ai.mit.edu to
+to help developing glibc should contact libc-hacker-request@gnu.org to
 be put on the developers mailing list.  This list is really only meant for
 developers.  No questions about installation problems or other simple topics
 are wanted nor will they be answered.
@@ -174,7 +174,7 @@ you are talking about and it will just cause confusion.
 BUG REPORTS
 -----------
 
-Send bug reports directly to Ulrich Drepper <drepper@gnu.ai.mit.edu>.  Please
+Send bug reports directly to Ulrich Drepper <drepper@gnu.org>.  Please
 do *not* use the glibcbug script for reporting bugs in the snapshots.
 glibcbug should only be used for problems with the official released versions.
 We don't like bug reports in the bug database because otherwise the impression
@@ -202,7 +202,7 @@ FORMAT FOR PATCHES
 ------------------
 
 If you have a fix for a bug, or an enhancement to submit, send your patch to
-Ulrich Drepper <drepper@gnu.ai.mit.edu>.  Here are some simple guidelines for
+Ulrich Drepper <drepper@gnu.org>.  Here are some simple guidelines for
 submitting patches:
 
     o	Use "unified diffs" for patches.  A typical command for generating

bits/errno.h

@@ -18,23 +18,24 @@
 
 /* This file defines the `errno' constants.  */
 
-#if !defined(__Emath_defined) && (defined(_ERRNO_H) || defined(__need_Emath))
+#if !defined __Emath_defined && (defined _ERRNO_H || defined __need_Emath)
 #undef	__need_Emath
 #define	__Emath_defined	1
 
-#define	EDOM	1
-#define	ERANGE	2
+# define EDOM	1
+# define ERANGE	2
 #endif
 
 #ifdef	_ERRNO_H
-#define	ENOSYS	3
-#define	EINVAL	4
-#define	ESPIPE	5
-#define	EBADF	6
-#define	ENOMEM	7
-#define	EACCES	8
-#define ENFILE  9
-#define EMFILE  10
+# define ENOSYS	3
+# define EINVAL	4
+# define ESPIPE	5
+# define EBADF	6
+# define ENOMEM	7
+# define EACCES	8
+# define ENFILE  9
+# define EMFILE  10
+# define ENOMSG  11
 #endif
 
 #define __set_errno(val) errno = (val)

include/features.h

@@ -121,7 +121,7 @@
 # undef  _POSIX_SOURCE
 # define _POSIX_SOURCE	1
 # undef  _POSIX_C_SOURCE
-# define _POSIX_C_SOURCE	199309L
+# define _POSIX_C_SOURCE	199506L
 # undef  _XOPEN_SOURCE
 # define _XOPEN_SOURCE	500
 # undef  _XOPEN_SOURCE_EXTENDED
@@ -159,7 +159,7 @@
 # if defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) != 500
 #  define _POSIX_C_SOURCE	2
 # else
-#  define _POSIX_C_SOURCE	199309L
+#  define _POSIX_C_SOURCE	199506L
 # endif
 #endif
 
@@ -171,8 +171,13 @@
 # define __USE_POSIX2	1
 #endif
 
-#if defined _POSIX_C_SOURCE && _POSIX_C_SOURCE >= 199309L
-# define __USE_POSIX199309	1
+#ifdef _POSIX_C_SOURCE
+# if _POSIX_C_SOURCE >= 199309L
+#  define __USE_POSIX199309	1
+# endif
+# ifndef _XOPEN_SOURCE
+#  define _XOPEN_SOURCE	500
+# endif
 #endif
 
 #ifdef	_XOPEN_SOURCE

libio/stdfiles.c

@@ -39,7 +39,7 @@
     = {{FILEBUF_LITERAL(CHAIN, FLAGS, FD), &_IO_file_jumps},}; \
   default_symbol_version (INAME, NAME, GLIBC_2.1)
 #else
-#define DEF_STDFILE(INAME, FD, CHAIN, FLAGS) \
+#define DEF_STDFILE(INAME, NAME, FD, CHAIN, FLAGS) \
   struct _IO_FILE_complete INAME \
     = {{FILEBUF_LITERAL(CHAIN, FLAGS, FD), &_IO_file_jumps},}; \
   default_symbol_version (INAME, NAME, GLIBC_2.1)

libio/strops.c

@@ -215,6 +215,9 @@ _IO_str_seekoff (fp, offset, dir, mode)
   _IO_ssize_t cur_size = _IO_str_count (fp);
   _IO_fpos64_t new_pos = EOF;
 
+  if (mode == 0 && (fp->_flags & _IO_TIED_PUT_GET))
+    mode = (fp->_flags & _IO_CURRENTLY_PUTTING ? _IOS_OUTPUT : _IOS_INPUT);
+
   /* Move the get pointer, if requested. */
   if (mode & _IOS_INPUT)
     {

manual/creature.texi

@@ -36,6 +36,11 @@ available.  If you define this macro with a value of @code{2}, then both
 the functionality from the POSIX.1 standard and the functionality from
 the POSIX.2 standard (IEEE Standard 1003.2) are made available.  This is
 in addition to the @w{ISO C} facilities.
+
+The Single Unix Specification specify that setting this macro to the
+value @code{199506L} selects all the values specified by the POSIX
+standards plus those of the Single Unix Specification, i.e., is the
+same as if @code{_XOPEN_SOURCE} is set to @code{500} (see below).
 @end defvr
 
 @comment (none)
@@ -88,7 +93,7 @@ available which are necessary for the X/Open Unix brand.
 
 If the macro @code{_XOPEN_SOURCE} has the value @math{500} this includes
 all functionality described so far plus some new definitions from the
-Single Unix specification, @w{version 2}.
+Single Unix Specification, @w{version 2}.
 @end defvr
 
 @comment (NONE)

manual/filesys.texi

@@ -340,7 +340,7 @@ value.  Use @code{readdir_r} when this is critical.
 
 @comment dirent.h
 @comment GNU
-@deftypefun int readdir_r (DIR *@var{dirstream}, struct *@var{entry}, struct **@var{result})
+@deftypefun int readdir_r (DIR *@var{dirstream}, struct dirent *@var{entry}, struct dirent **@var{result})
 This function is the reentrant version of @code{readdir}.  Like
 @code{readdir} it returns the next entry from the directory.  But to
 prevent conflicts for simultaneously running threads the result is not
@@ -1783,6 +1783,10 @@ waste of the server's memory to cache them a second time.  In this use
 the sticky bit also says that the filesystem may fail to record the
 file's modification time onto disk reliably (the idea being that no-one
 cares for a swap file).
+
+This bit is only available on BSD systems (and those derived from
+them).  Therefore one has to use the @code{_BSD_SOURCE} feature select
+macro to get the definition (@pxref{Feature Test Macros}).
 @end table
 
 The actual bit values of the symbols are listed in the table above

manual/maint.texi

@@ -538,11 +538,11 @@ include the file @code{<stub-tag.h>} into your file.  This causes the
 function to be listed in the installed @code{<gnu/stubs.h>}, and
 makes GNU ld warn when the function is used.
 
-Some rare functions are only useful on specific systems and aren't
-defined at all on others; these do not appear anywhere in the
-system-independent source code or makefiles (including the
-@file{generic} and @file{stub} directories), only in the
-system-dependent @file{Makefile} in the specific system's subdirectory.
+Some rare functions are only useful on specific systems and
+aren't defined at all on others; these do not appear anywhere
+in the system-independent source code or makefiles (including the
+@file{generic}), only in the system-dependent @file{Makefile} in the
+specific system's subdirectory.
 
 If you come across a file that is in one of the main source directories
 (@file{string}, @file{stdio}, etc.), and you want to write a machine- or