This is fairly complicated, not because the users of __need_Emath and
__need_error_t have complicated requirements, but because the core
changes had a lot of fallout.
__need_error_t exists for gnulib compatibility in argz.h and argp.h.
error_t itself is a Hurdism, an enum containing all the E-constants,
so you can do 'p (error_t) errno' in gdb and get a symbolic value.
argz.h and argp.h use it for function return values, and they want to
fall back to 'int' when that's not available. There is no reason why
these nonstandard headers cannot just go ahead and include all of
errno.h; so we do that.
__need_Emath is defined only by .S files; what they _really_ need is
for errno.h to avoid declaring anything other than the E-constants
(e.g. 'extern int __errno_location(void);' is a syntax error in
assembly language). This is replaced with a check for __ASSEMBLER__ in
errno.h, plus a carefully documented requirement for bits/errno.h not
to define anything other than macros. That in turn has the
consequence that bits/errno.h must not define errno - fortunately, all
live ports use the same definition of errno, so I've moved it to
errno.h. The Hurd bits/errno.h must also take care not to define
error_t when __ASSEMBLER__ is defined, which involves repeating all of
the definitions twice, but it's a generated file so that's okay.
* stdlib/errno.h: Remove __need_Emath and __need_error_t logic.
Reorganize file. Declare errno here. When __ASSEMBLER__ is
defined, don't declare anything other than the E-constants.
* include/errno.h: Change conditional for exposing internal
declarations to (not _ISOMAC and not __ASSEMBLER__).
* bits/errno.h: Remove logic for __need_Emath. Document
requirements for a port-specific bits/errno.h.
* sysdeps/unix/sysv/linux/bits/errno.h
* sysdeps/unix/sysv/linux/alpha/bits/errno.h
* sysdeps/unix/sysv/linux/hppa/bits/errno.h
* sysdeps/unix/sysv/linux/mips/bits/errno.h
* sysdeps/unix/sysv/linux/sparc/bits/errno.h:
Add multiple-include guard and check against improper inclusion.
Remove __need_Emath logic. Don't declare errno here. Ensure all
constants are defined as simple integer literals. Consistent
formatting.
* sysdeps/mach/hurd/errnos.awk: Likewise. Only define error_t and
enum __error_t_codes if __ASSEMBLER__ is not defined.
* sysdeps/mach/hurd/bits/errno.h: Regenerate.
* argp/argp.h, string/argz.h: Don't define __need_error_t before
including errno.h.
* sysdeps/i386/i686/fpu/multiarch/s_cosf-sse2.S
* sysdeps/i386/i686/fpu/multiarch/s_sincosf-sse2.S
* sysdeps/i386/i686/fpu/multiarch/s_sinf-sse2.S
* sysdeps/x86_64/fpu/s_cosf.S
* sysdeps/x86_64/fpu/s_sincosf.S
* sysdeps/x86_64/fpu/s_sinf.S:
Just include errno.h; don't define __need_Emath or include
bits/errno.h directly.
2001-07-06 Paul Eggert <eggert@twinsun.com>
* manual/argp.texi: Remove ignored LGPL copyright notice; it's
not appropriate for documentation anyway.
* manual/libc-texinfo.sh: "Library General Public License" ->
"Lesser General Public License".
2001-07-06 Andreas Jaeger <aj@suse.de>
* All files under GPL/LGPL version 2: Place under LGPL version
2.1.
1997-11-04 Ulrich Drepper <drepper@cygnus.com>
* manual/filesys.texi: Correct description of return value for
readdir_r.
* sysdeps/unix/readdir_r.c (__readdir_r): Return value of errno
not -1 in error case.
* sysdeps/generic/readdir_r.c (__readdir_r): Return ENOSYS not -1.
Reported by Jim Meyering <meyering@eng.ascend.com>.
1997-11-02 Paul Eggert <eggert@twinsun.com>
* strftime.c: Use host's underlying strftime to access
locale-specific info. This is useful e.g. when building GNU
Emacs under Solaris 2.6.
(weekday_name, month_name): Omit if HAVE_STRFTIME.
(my_strftime): New macro, which names the strftime function that
this source file produces.
(strftime): #undef if emacs is defined; this works around Emacs 20.2's
method of compiling with -Dstrftime=emacs_strftime.
Also, declare as a function returning size_t, for similar reasons.
(my_strftime): If HAVE_STRFTIME, use underlying strftime to handle
locale-dependent formats like %a and %Ec.
1997-11-02 Paul Eggert <eggert@twinsun.com>
* strftime.c (memcpy_lowcase, memcpy_uppcase, strftime):
Ensure that args to islower and isupper are valid unsigned
chars, even if char is signed.
1997-11-04 Ulrich Drepper <drepper@cygnus.com>
* assert/Makefile (headers): Add assert.h, necessary after patch
to Makefiles.
* ctype/Makefile (headers): Likewise.
* pwd/Makefile (headers): Likewise.
* grp/Makefile (headers): Likewise.
Patch by NIIBE Yutaka <gniibe@mri.co.jp>.
1997-11-04 03:08 Ulrich Drepper <drepper@cygnus.com>
* glibcbug.in: Add information about configured target.
Patch by Zack Weinberg <zack@rabi.phys.columbia.edu>.
* elf/dl-lookup.c (_dl_lookup_versioned_symbol): Be prepared for
empty string as `reference_name' parameter.
* elf/rtld.c: Don't set real program name in l_name of main object.
* manual/creature.texi: Apply Paul Eggert's patch for better
_POSIX_C_SOURCE description.
* stdlib/strfmon.c: Fix numerous bugs in formatting.
* time/strptime.c [%Y]: Treat all years, not only those which fit
in time_t.
[%Oy]: Really store value.
Patches by Paul Eggert.
* wcsmbs/wchar.h: Fix documentation bugs. Declare wcsdup only
is __USE_GNU.
1997-11-03 02:48 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/generic/bits/errno.h: Remove all error definitions. This
is only meant as a stub.
1997-10-31 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* sysdeps/standalone/bits/errno.h: Copied from
sysdeps/generic/bits/errno.h and added all know error codes that
are used in glibc.
1997-11-03 02:23 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/generic/make_siglist.c: Add comment to clarify use and
make sure the correct _NSIG value is used.
Patch by Klaus Espenlaub <kespenla@student.informatik.uni-ulm.de>.
1997-11-03 00:20 Ulrich Drepper <drepper@cygnus.com>
* intl/localealias.c (read_alias_file): Correct handling of line
reader which sometimes skipped complete lines (PR 205).
Optimize a bit by using mempcpy.
1997-11-02 16:59 Philipp Thomas <kthomas@gwdg.de>
* intl/localealias.c (read_alias_file): Correctly set map[].value
instead of overwriting map[].alias
1997-11-02 15:32 Ulrich Drepper <drepper@cygnus.com>
* libc.map: Add _IO_flockfile and _IO_funlockfile.
Suggested by H.J. Lu <hjl@lucon.org>.
1997-11-02 15:17 Ulrich Drepper <drepper@cygnus.com>
* elf/dl-error.c (_dl_signal_error): Use _strerror_internal instead
of strerror.
* assert/assert-perr.c: Use _strerror_internal directly instead of
__strerror_r.
Suggested by Joe Keane <jgk@jgk.org>.
1997-11-01 16:46 Zack Weinberg <zack@rabi.phys.columbia.edu>
* configure.in: Check for gcc-2.7.2 -pipe bug and hack around it
(PR 245).
1997-11-01 Paul Eggert <eggert@twinsun.com>
* time/strptime.c (strptime_internal): Fix bug: %Oy forgot to
assign tm_year. Do not restrict %Y to years less than 2037 even
on 32-bit time_t hosts, as strptime returns an int tm_year, not a
time_t, and it's possible for programs to use the year without
having to use time_t.
non-directories in the list (PR 203).
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
Joseph Myers
Zack Weinberg
Allan McRae
Paul Eggert
Ulrich Drepper
Andreas Jaeger