by introducing a hidden compat_foo() function, using that internally in
libc, and exposing foo as a strong alias to compat_foo(). I am open for
better ideas.
FFILESYNC flag but not the FDISKSYNC flag.
Add a paragraph of weasel words about how writing to a permanent
storage device does not necessarily write to permanent storage media
within that device.
Move the description of FDISKSYNC into the same list as FDATASYNC
and FFILESYNC.
Change the order of paragraphs or sentences in an attempt to
improve the flow.
Changes affecting API
The 'zic' command now outputs a dummy transition when far-future
data can't be summarized using a TZ string, and uses a 402-year
window rather than a 400-year window. For the current data, this
affects only the Asia/Tehran file. It does not affect any of the
time stamps that this file represents, so zdump outputs the same
information as before. (Thanks to Andrew Main (Zefram).)
The 'date' command has a new '-r' option, which lets you specify
the integer time to display, a la FreeBSD.
The 'tzselect' command has two new options '-c' and '-n', which lets you
select a zone based on latitude and longitude.
The 'zic' command's '-v' option now warns about constructs that
require the new version-3 binary file format. (Thanks to Arthur
David Olson for the suggestion.)
Support for floating-point time_t has been removed.
It was always dicey, and POSIX no longer requires it.
(Thanks to Eric Blake for suggesting to the POSIX committee to
remove it, and thanks to Alan Barrett, Clive D.W. Feather, Andy
Heninger, Arthur David Olson, and Alois Treindl, for reporting
bugs and elucidating some of the corners of the old floating-point
implementation.)
The signatures of 'offtime', 'timeoff', and 'gtime' have been
changed back to the old practice of using 'long' to represent UT
offsets. This had been inadvertently and mistakenly changed to
'int_fast32_t'. (Thanks to Christos Zoulos.)
The code avoids undefined behavior on integer overflow in some
more places, including gmtime, localtime, mktime and zdump.
Changes affecting the zdump utility
zdump now outputs "UT" when referring to Universal Time, not "UTC".
"UTC" does not make sense for time stamps that predate the introduction
of UTC, whereas "UT", a more-generic term, does. (Thanks to Steve Allen
for clarifying UT vs UTC.)
Data changes affecting behavior of tzselect and similar programs
Country code BQ is now called the more-common name "Caribbean Netherlands"
rather than the more-official "Bonaire, St Eustatius & Saba".
Remove from zone.tab the names America/Montreal, America/Shiprock,
and Antarctica/South_Pole, as they are equivalent to existing
same-country-code zones for post-1970 time stamps. The data for
these names are unchanged, so the names continue to work as before.
Changes affecting code internals
zic -c now runs way faster on 64-bit hosts when given large numbers.
zic now uses vfprintf to avoid allocating and freeing some memory.
tzselect now computes the list of continents from the data,
rather than have it hard-coded.
Minor changes pacify GCC 4.7.3 and GCC 4.8.1.
Changes affecting the build procedure
The 'leapseconds' file is now generated automatically from a
new file 'leap-seconds.list', which is a copy of
<ftp://time.nist.gov/pub/leap-seconds.list>.
A new source file 'leapseconds.awk' implements this.
The goal is simplification of the future maintenance of 'leapseconds'.
When building the 'posix' or 'right' subdirectories, if the
subdirectory would be a copy of the default subdirectory, it is
now made a symbolic link if that is supported. This saves about
2 MB of file system space.
The links America/Shiprock and Antarctica/South_Pole have been
moved to the 'backward' file. This affects only nondefault builds
that omit 'backward'.
Changes affecting documentation and commentary
Changes to the 'tzfile' man page
It now mentions that the binary file format may be extended in
future versions by appending data.
It now refers to the 'zdump' and 'zic' man pages.
Changes to the 'zic' man page
It lists conditions that elicit a warning with '-v'.
It says that the behavior is unspecified when duplicate names
are given, or if the source of one link is the target of another.
Its examples are updated to match the latest data.
The definition of white space has been clarified slightly.
(Thanks to Michael Deckers.)
Changes to the 'Theory' file
There is a new section about the accuracy of the tz database,
describing the many ways that errors can creep in, and
explaining why so many of the pre-1970 time stamps are wrong or
misleading (thanks to Steve Allen, Lester Caine, and Garrett
Wollman for discussions that contributed to this).
The 'Theory' file describes LMT better (this follows a
suggestion by Guy Harris).
It refers to the 2013 edition of POSIX rather than the 2004 edition.
It's mentioned that excluding 'backward' should not affect the
other data, and it suggests at least one zone.tab name per
inhabited country (thanks to Stephen Colebourne).
Some longstanding restrictions on names are documented, e.g.,
'America/New_York' precludes 'America/New_York/Bronx'.
It gives more reasons for the 1970 cutoff.
It now mentions which time_t variants are supported, such as
signed integer time_t. (Thanks to Paul Goyette for reporting
typos in an experimental version of this change.)
(Thanks to Philip Newton for correcting typos in these changes.)
Documentation and commentary is more careful to distinguish UT in
general from UTC in particular. (Thanks to Steve Allen.)
Add a better source for the Zurich 1894 transition.
(Thanks to Pierre-Yves Berger.)
Update shapefile citations in tz-link.htm. (Thanks to Guy Harris.)
data and which LC_MONETARY and LC_NUMERIC values it is derived from.
In newlocale(3) and setlocale(3), check for the existing entries and on
miss, create a new entry. This is currently not using a lock for the
list as the worst case is a small memory leak.
prevent crashes in applications which carefully and manually construct
a temporary environment and later restore the original environment
like Emacs 24.
Problem reported by Thomas Klausner on "pkgsrc-users" mailing list.
fixdfdi.c fixsfdi.c fixunsdfdi.c fixunssfdi.c
floatdidf.c floatdisf.c floatundidf.c floatundisf.c
These don't FP so are well suited to softfloat implementation.
Remove the various Current pointers, they are implementation internals
that shouldn't be leaked. Remove _CATEGORY_DEFAULT related handling and
directly pick the implemenation pointer from the C locale.
Merge the C locale data into global_locale.c with the exception of
_DefaultRuneLocale. Mark that one hidden. Move _RUNE_LOCALE and
_CITRUS_CTYPE into multibyte.h and pick up the correct rl_citrus_ctype
for non-default locales.
gethostbyname{,2}_r, gethostbyaddr_r. Make getnameinfo(3) use
gethostbyaddr_r(3) so it is re-entrant (ahem __ypdomain). These
are not being advertised because there is a bunch of different
implementation of them that have a variety of type signatures.
If people want to follow someone's implementation, it is now easy.
Don't use the PLT to call CERROR
Use LEA_LCL / GOT_SETUP
Remove non-__ELF__ code.
Make __minbrk and __curbrk hidden and avoid using the GOT for them.
Convert to motorola syntax.
consttime_memequal is the same as the old consttime_bcmp.
explicit_memset is to memset as explicit_bzero was to bcmp.
Passes amd64 release and i386/ALL, but I'm sure I missed some spots,
so please let me know.
- Remove some system calls from the list of functions which may set errno
during the execution of realpath(3) since they are no longer used
to implement it.
- Document some errno set by the realpath(3) itself.
Provide LC_GLOBAL_LOCALE in a way that works with all locale functions.
Merge constant data used by the initial global locale and the C locale.
Drop function call layer for _current_locale() and directly return the
locale reference, not a pointer to it. Use protected access for global
variables, so that libc references can avoid the GOT overhead.
the tty generated ones (int, quit, tstp), plus term and hup. This makes
command line clients behave on connect(2) where before they would need
to be killed from a different tty. Much easier than making the file
descriptor non-blocking for the duration of connect and then using
pselect/pollts to detect when actual connection or timeout occured using
a different sigmask.
- factor out some of the error paths.
called. Use this to implement newlocale and provide duplocale/freelocale
as well. Based on patches by Takehiko Nozaki with simplications and fix
for the init order by myself.
