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c17f665b 1GNU C Library NEWS -- history of user-visible changes. 2001-12-11
f128331c 2Copyright (C) 1992-2000, 2001 Free Software Foundation, Inc.
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3See the end for copying conditions.
4
33a934a3 5Please send GNU C library bug reports using the `glibcbug' script to
af6f3906 6<bugs@gnu.org>. Questions and suggestions should be send to
2eb45444 7<bug-glibc@gnu.org>.
2e92188d 8\f
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9Version 2.3
10* Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
11 charsets.
12
13* iconv (the program and the interface) now accepts empty names (excluding
14 options like //TRANSLIT) to mean "use charset of current locale".
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15
16* localedef now can transliterate characters in strings which are not in
17 the provided charmap. The information from the input locale is used.
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18
19* Prelinking support was added for ELF targets. This requires additional
20 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
03a2c647 21\f
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22Version 2.2.5
23
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24* Stephen Moshier implemented log2, log10, powl and cbrtl for the
25 128-bit long double format.
a8ae31c2 26
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27* Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
28 IBM1161, and IBM1162 charsets.
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29
30* Andreas Jaeger contributed a port to x86_64/Linux.
31
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32* Peter Bruin contributed a port to PowerPC/Hurd.
33
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34* libc functions using I/O streams now can handle wide-oriented streams
35 as well.
36
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37* optimizations in the dynamic linker. binaries created by recent binutils
38 versions start up quicker due to reduced time spend on relocations.
7d0c5823 39\f
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40Version 2.2.4
41
2995f70e 42* Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
aff17a50 43 asinh, atanh, j0 for the 128-bit long double format.
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44
45* Bruno Haible updated all the code handling Unicode in some form to
46 support Unicode 3.1.
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47
48* Speed of regex for single-byte locales is back to previous levels.
49 Patch by Isamu Hasegawa.
045fcd26 50
69d5f925 51* Alpha, SPARC, and IA-64 now also using floating stacks.
045fcd26 52
69d5f925 53* Startup time of internationalized applications greatly improved through
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54 iconv cache. Use iconvconfig to generate the cache file.
55 Contributed by Ulrich Drepper.
56
57* The IA-64 specific part of ld.so was rewritten to eliminate some pretty
58 severe performance problems. Patch by David Mosberger.
59
60* The Hurd port got a lot more functionality like AIO, various stdio
61 extensions, etc. Mainly done by Roland McGrath.
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62
63* mtrace can now lookup symbols in shared libraries.
33996419 64\f
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65Version 2.2.3
66
1746f2b0 67* Intel's IA-64 math library is largely integrated. It provides fast and
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68 accurate implementatations for most basic and standard math functions
69 in float, double, and long double format.
70
f128331c 71* Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
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72 and asin for the 96-bit long double format and asin, log, tan for the
73 128-bit long double format.
07f951e4 74
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75* The beginning of a last-bit accurate math library by IBM Haifa were added.
76 The basic double functions exist today. Contributed by Abraham Ziv
77 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
78 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
79
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80* An asynchronous name lookup library was added. The interface is designed
81 after POSIX AIO. The proposal was circulated beforehand to get comments.
82 No negative ones came in. Implemented by Ulrich Drepper.
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83
84* Port to S390/64bit contributed by Martin Schwidefsky
85 <schwidefsky@de.ibm.com>.
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86
87* David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
88 of functions for Linux/IA-64.
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89
90* The RPC code is now thread safe. Threads can now use the same service
91 of different services at the same time. Patch by Eric Norum
92 <eric.norum@usask.ca> with some help by Ulrich Drepper.
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93
94* Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
95 family of functions for Linux/S390.
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96
97* Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
98 of functions for Linux/x86.
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99
100* Port to Linux/CRIS contributed by Axis Communications.
2ace5721 101\f
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102Version 2.2.2
103
464d97ec 104* Lots of headers were cleaned up. Using the tool in the conform/ subdir
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105 we can now check for namespace violations and missing declarations. The
106 result is that almost all headers are now Unix-compliant (as defined in
107 the upcoming XPG6). The negative side is that some programs might need
108 corrections, too, if they depend on the incorrect form of the headers in
109 previous versions which defined too many symbols and included too many
110 other headers.
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111
112* regex now handles multibyte character sets correctly.
113 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
114
115* iconv (the program) does now conform to the upcoming XPG6 and handles
116 charmaps. Instead of the charset names the path of charmaps can be
117 provided and the conversion happens based on this data.
118 Contributed by Ulrich Drepper.
119
120* The locale program now provides detailed information about the installed
121 locales. While
122
123 locale -a
124
125 only lists the names of the supported locales
126
127 locale -a --verbose
128
129 provides details such as country, language, and codeset name.
130 Contributed by Ulrich Drepper.
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132Version 2.2.1
133
134* The gencat program now parses the input file according to the charset
135 selected by the LC_CTYPE category. This is important for stateful
136 character sets. To make generating catalogs easier there is a way
137 to overwrite the charset selected by the locale: before the first
138 message or $ quote line the catalog can contain a line like
139
140 $ codeset=ISO-8859-2
141
142 to select the charset (ISO-8859-2 in this case).
143
144 Implemented by Shinya Hanataka and Ulrich Drepper.
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145
146* New codeset conversion modules: IBM-922 (Estonia PC codeset),
147 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
148 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
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149
150* Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
151 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
152
153* The LANGUAGE environment variable is now ignored unless the locale is
154 changed from the default "C" locale.
155
156* The usual bug fixes.
d2defdc4 157\f
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158Version 2.2
159
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160* Greg McGary added runtime support for bounds checking using gcc's
161 new -fbounded-pointers option. ix86 target is complete. PowerPC
162 is in progress.
163
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164* Thorsten Kukuk added secure mode support to nscd.
165
793bd4d9 166* The Berkeley db libraries have been removed.
2e92188d 167
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168 Related, the nss_db module is now in a separate package since it
169 obviously requires a database library being available.
170
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171* Wide character I/O streams implemented by Ulrich Drepper.
172
abbffdf9 173* Functions from the extended socket API added by Ulrich Drepper.
01c771d0 174
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175* Functions feenableexcept and fedisableexcept to control the
176 behaviour of individual exceptions have been added by Andreas Jaeger.
177
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178* ldconfig program added by Andreas Jaeger and Jakub Jelinek.
179
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180* The resolver code has been updated from bind 8.2.3-T5B which supports
181 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
182 and Mark Kettenis.
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183
184 This change could in some situations effect backward compatibility. Since
185 now `_res' is a thread-local instead of a global variable, modifying it
186 in one thread does not have any effect in other threads.
66ac0abe 187
a00c3ca9 188 The resolver library was also extended to allow IPv6 as the transport
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189 protocol for the requests. This work was done by Stig Venaas.
190
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191* Compatibility code for K&R C compilers has been removed from the
192 header files. A ISO C compiler is needed to use the library
193 (conforming to either C89 or C99 standard).
194
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195* Complete rewrite of the localedef program to support multibyte character
196 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
197 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
198 Implemented by Ulrich Drepper.
199
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200 Bruno Haible significantly improved the generation and use of the data
201 structures for the wide character tables.
202
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203* Plural handling in gettext implemented by Ulrich Drepper.
204
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205* The utmp daemon has been removed.
206
207* The port to MIPS-Linux has been finished by Andreas Jaeger.
208
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209* A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
210 and Yutaka Niibe.
211
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212* POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
213
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214* POSIX barriers implemented by Kaz Kylheku.
215
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216* POSIX spawn function family implemented by Ulrich Drepper.
217
218* POSIX spinlocks are now available.
219
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220* Timed wait functions for mutex, rwlock, and semaphores are implemented.
221
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222* the configure option --enable-kernel=X.Y.Z allows to strip out
223 compatibility for kernel versions before X.Y.Z. This is currently only
224 implemented for Linux.
225
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226* the sockaddr_in6 structure changed. The IPv6 working group added a new
227 field sin6_scope_id. This means that all programs using IPv6 should be
228 recompiled. Don't expect binary compatibility with previous glibc
229 versions.
230
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231* various conversion modules for IBM character sets contributed by
232 Masahide Washizawa.
233
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234* IA-64 port by Jes Sorensen and HJ Lu.
235
236~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
237Compiling the GNU C Library for Linux/ia64
238******************************************
239
240 Please refer to the file INSTALL in the same directory as you found
241this file for general information about configuring and compiling
242glibc.
243
244 For general inquiries about glibc under Linux/ia64 please use the
245following mailing list linux-ia64@linuxia64.org or one of the relevant
246glibc mailing lists.
247
248Recommended Tools for Compilation
249=================================
250
251 In order for glibc-2.2 to build correctly on the ia64 you need at
252least the following versions of the GNU tools (the :
253
254 * The Cygnus toolchain snapshot for the ia64 as of August 4
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255 including the provided set of patches. It is however recommend
256 you use the October 24 toolchain snapshot or a more recent version.
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257
258 OR alternatively you can try the following (the Cygnus toolchain is
259 the recommended solution):
260
261 * GCC and binutils, GAS and GNU LD out of CVS from
aea6353a 262 sources.redhat.com as of August 28, 2000 or later. The CVS tree
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263 may require special patches to work properly on the ia64.
264
265Configuring and compiling GNU Libc for Linux/ia64
266=================================================
267
268 The library requires Linux kernel version 2.4.0-test4-000728 or
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269later to funtion properly. Besides that it support for debug libraries
270is currently untested. Hence the following options
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271are required for configuring the library:
272
aea6353a 273 --disable-debug --enable-kernel=2.4.0
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274
275 It is also important that you make sure the library picks up the
276appropriate kernel header files, if you do not have recent enough
277kernel headers in /usr/src/linux/include, you should use the
278--with-headers=<path> option to specify the location.
279
280 As an example I personally use the following options to configure
281the library:
282
283 --disable-debug
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284 --disable-cvs
285 --enable-kernel=2.4.0
286 --host=ia64-linux
287 --enable-add-ons=yes
288 --prefix=/usr
289 --with-headers=/home/jes/linux/include
290
291
292Good luck
293
294Jes Sorensen <jes@linuxcare.com>,
aea6353a 295November 14th, 2000
8f3f1e09 296~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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297\f
298Version 2.1.3
299
300* bug fixes
301
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302\f
303Version 2.1.2
304
305* bug fixes
306
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308Version 2.1.1
309
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310* New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
311
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312* New xdr functions are added; some rpc functions are now 64bit clean.
313
407d26b7 314* Fixed a number of bugs and memory leaks (especially in NIS+ code).
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315
316* Fixed known incompatibilities with glibc 2.0.
317
407d26b7 318* New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
16b0f634 319
407d26b7 320* Optimized a number of functions (especially the ELF dynamic loader).
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321
322* Update timezone data files.
27995311 323
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324* lots of charmaps corrections
325
326* some new locale definitions and charmaps
327
e518937a 328\f
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329Version 2.1
330
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331* Richard Henderson corrected size of struct timeval on Linux/Alpha to
332 conform to POSIX member type requirements. Symbol versions have been
333 adjusted as needed within the library, and for direct use by applications,
334 but there is potential for problems if third-party libraries use
335 struct timeval as part of their interface. This does not present
336 a problem for X and other "essential" system libraries.
337
c84142e8 338* An additional locale model to support C++ Standard Library locale
1fb05e3d 339 model and probably more was implemented by Ulrich Drepper.
c84142e8 340
1fb05e3d 341* Eric Youngdale and Ulrich Drepper implemented versioning of objects on
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342 symbol level.
343
344* Miles Bader provided the `argp' function family to support hierachical
345 command line argument parsing, layered on top of getopt.
377a515b 346
cbdee279 347* strtod accepts new hexadecimal floating-point format from ISO C 9X.
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348
349* printf has two new specifiers %a and %A to print hexadecimal flaoting-point
cbdee279 350 numbers.
377a515b 351
cbdee279 352* scanf recognizes the %a and %A format for scanning floating point numbers.
e61abf83 353
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354* the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
355 information and interfaces for the available integer types.
e61abf83 356
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357* about 130 new math functions were added to implement the ISO C9x math
358 library.
359
e61abf83 360* the new header <complex.h> contains definitions of the complex math
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361 functions from ISO C 9X.
362
363* the new header <tgmath.h> defines generic macros to use complex or
364 real valued functions.
e61abf83 365
a5a0310d 366* Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
e61abf83 367
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368* Andreas Jaeger provided a test suite for the math library.
369
370* Mark Kettenis implemented the utmpx interface and an utmp daemon.
cbdee279 371
440d13e2 372* Ulrich Drepper added character set conversion functions (iconv).
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373
374* Optimized string functions have been added.
375
376* The localedata addon is now part of glibc.
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377
378* An implementation of profiling shared libraries was added by Ulrich Drepper.
ea278354 379
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380* Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
381 daemon for NSS (nscd).
382
383 Missing a better place here are some numbers on improvements. Under
384 Linux 2.1.125 un-tar-ing the kernel sources takes
385
0dee6738 386 user system wall
48244d09 387
0dee6738 388 using local files 12.19s 6.88s 22.91s
48244d09 389
0dee6738 390 using NIS 13.92s 8.91s 26.34s
48244d09 391
0dee6738 392 using NIS & nscd 10.37s 7.34s 25.30s
48244d09 393
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394 using NIS+ 27.57s 30.37s 640.46s
395
396 using NIS+ & nscd 10.25s 7.83s 26.51s
397
398 using NIS & old nscd [1] 13.83s 8.32s 29.60s
48244d09 399
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400 Keep in mind that non-namelookup related operations dominate above times.
401 It was just a common complain that using NIS+ unpacking the kernel is
0dee6738 402 horribly slow.
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404 [1] The old nscd implementation is not available anymore since it was
405 distributed with glibc up to version 2.0.98 and thus is now replaced.
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406
407* Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
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408
409* Mark Kettenis provided a Hesiod NSS module.
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410
411* The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
412 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
413
414* rcmd can now handle netgroups (Dick Streefland).
48244d09 415
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416* A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
417 Bambrough.
418
419* Support for the IPv6 protocol has been added to the socket API, as per the
420 latest draft standards.
421
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422* Support for Linux 2.2 has been added.
423
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424* Interface changes relative to the latest 2.0.x release:
425~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
62595351 426addseverity NEW: Unix98
48244d09 427alphasort64 NEW: LFS
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428argp_err_exit_status NEW: argp, GNU ext
429argp_error NEW: argp, GNU ext
430argp_failure NEW: argp, GNU ext
431argp_help NEW: argp, GNU ext
432argp_parse NEW: argp, GNU ext
433argp_program_bug_address NEW: argp, GNU ext
434argp_program_version NEW: argp, GNU ext
435argp_program_version_hook NEW: argp, GNU ext
436argp_state_help NEW: argp, GNU ext
437argp_usage NEW: argp, GNU ext
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438authdes_create NEW: Secure RPC
439authdes_getucred NEW: Secure RPC
440authdes_pk_create NEW: Secure RPC
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441backtrace NEW: GNU ext.
442backtrace_symbols NEW: GNU ext.
443backtrace_symbols_fd NEW: GNU ext.
444cacos NEW: ISO C 9x
445cacosf NEW: ISO C 9x
446cacosh NEW: ISO C 9x
447cacoshf NEW: ISO C 9x
448cacoshl NEW: ISO C 9x
449cacosl NEW: ISO C 9x
450capget NEW: kernel
451capset NEW: kernel
452carg NEW: ISO C 9x
453cargf NEW: ISO C 9x
454cargl NEW: ISO C 9x
455casin NEW: ISO C 9x
456casinf NEW: ISO C 9x
457casinh NEW: ISO C 9x
458casinhf NEW: ISO C 9x
459casinhl NEW: ISO C 9x
460casinl NEW: ISO C 9x
461catan NEW: ISO C 9x
462catanf NEW: ISO C 9x
463catanh NEW: ISO C 9x
464catanhf NEW: ISO C 9x
465catanhl NEW: ISO C 9x
466catanl NEW: ISO C 9x
e980ca92 467cbc_crypt NEW: Secure RPC
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468ccos NEW: ISO C 9x
469ccosf NEW: ISO C 9x
470ccosh NEW: ISO C 9x
471ccoshf NEW: ISO C 9x
472ccoshl NEW: ISO C 9x
473ccosl NEW: ISO C 9x
474cexp NEW: ISO C 9x
475cexpf NEW: ISO C 9x
476cexpl NEW: ISO C 9x
477cimag NEW: ISO C 9x
478cimagf NEW: ISO C 9x
479cimagl NEW: ISO C 9x
480clearerr_locked REMOVED
481clntunix_create NEW: sunrpc ext
482clog NEW: ISO C 9x
483clog10 NEW: ISO C 9x
484clog10f NEW: ISO C 9x
485clog10l NEW: ISO C 9x
486clogf NEW: ISO C 9x
487clogl NEW: ISO C 9x
488conj NEW: ISO C 9x
489conjf NEW: ISO C 9x
490conjl NEW: ISO C 9x
491cpow NEW: ISO C 9x
492cpowf NEW: ISO C 9x
493cpowl NEW: ISO C 9x
494cproj NEW: ISO C 9x
495cprojf NEW: ISO C 9x
496cprojl NEW: ISO C 9x
497creal NEW: ISO C 9x
498crealf NEW: ISO C 9x
499creall NEW: ISO C 9x
500creat64 NEW: LFS
501csin NEW: ISO C 9x
502csinf NEW: ISO C 9x
503csinh NEW: ISO C 9x
504csinhf NEW: ISO C 9x
505csinhl NEW: ISO C 9x
506csinl NEW: ISO C 9x
507csqrt NEW: ISO C 9x
508csqrtf NEW: ISO C 9x
509csqrtl NEW: ISO C 9x
510ctan NEW: ISO C 9x
511ctanf NEW: ISO C 9x
512ctanh NEW: ISO C 9x
513ctanhf NEW: ISO C 9x
514ctanhl NEW: ISO C 9x
515ctanl NEW: ISO C 9x
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516des_setparity NEW: Secure RPC
517ecb_crypt NEW: Secure RPC
62595351 518endutxent NEW: Unix98
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519exp10 NEW: ISO C 9x
520exp10f NEW: ISO C 9x
521exp10l NEW: ISO C 9x
522exp2 NEW: ISO C 9x
523exp2f NEW: ISO C 9x
524exp2l NEW: ISO C 9x
525fattach NEW: STREAMS
526fdetach NEW: STREAMS
527fdim NEW: ISO C 9x
528fdimf NEW: ISO C 9x
529fdiml NEW: ISO C 9x
530feclearexcept NEW: ISO C 9x
531fegetenv NEW: ISO C 9x
532fegetexceptflag NEW: ISO C 9x
533fegetround NEW: ISO C 9x
534feholdexcept NEW: ISO C 9x
535feof_locked REMOVED
536feraiseexcept NEW: ISO C 9x
537ferror_locked REMOVED
538fesetenv NEW: ISO C 9x
539fesetexceptflag NEW: ISO C 9x
540fesetround NEW: ISO C 9x
541fetestexcept NEW: ISO C 9x
542feupdateenv NEW: ISO C 9x
543fflush_locked REMOVED
544ffsl NEW: GNU ext.
545ffsll NEW: GNU ext.
546fgetpos64 NEW: LFS
547fgets_unlocked NEW: GNU ext.
548fileno_locked REMOVED
549fma NEW: ISO C 9x
550fmaf NEW: ISO C 9x
551fmal NEW: ISO C 9x
552fmax NEW: ISO C 9x
553fmaxf NEW: ISO C 9x
554fmaxl NEW: ISO C 9x
555fmin NEW: ISO C 9x
556fminf NEW: ISO C 9x
557fminl NEW: ISO C 9x
62595351 558fmtmsg NEW: Unix98
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559fopen64 NEW: LFS
560fputc_locked REMOVED
561fputs_unlocked NEW: GNU ext.
562fread_unlocked NEW: GNU ext.
563freopen64 NEW: LFS
564fseeko NEW: Unix98
565fsetpos64 NEW: LFS
566fstatfs64 NEW: LFS
567fstatvfs NEW: Unix98
568fstatvfs64 NEW: LFS
569ftello NEW: Unix98
570ftello64 NEW: LFS
571ftruncate64 NEW: LFS
572ftw64 NEW: LFS
573fwrite_unlocked NEW: GNU ext.
574gai_strerror NEW: IPv6
575gamma_r REMOVED
576gammaf_r REMOVED
577gammal_r REMOVED
578getchar_locked REMOVED
579getdate NEW: Unix98
580getdate_err NEW: Unix98
581getdate_r NEW: GNU ext.
582getmsg NEW: STREAMS
583getnameinfo NEW: IPv6
e980ca92 584getnetname NEW: Secure RPC
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585getpmsg NEW: STREAMS
586getpt NEW: Unix98 PTY
587getrlimit64 NEW: LFS
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588getutxent NEW: Unix98
589getutxid NEW: Unix98
590getutxline NEW: Unix98
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591glob64 NEW: GNU ext.
592globfree64 NEW: GNU ext.
593gnu_get_libc_release NEW: GNU ext.
594gnu_get_libc_version NEW: GNU ext.
595grantpt NEW: Unix98 PTY
e980ca92 596host2netname NEW: Secure RPC
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597iconv NEW: iconv
598iconv_close NEW: iconv
599iconv_open NEW: iconv
600if_freenameindex NEW: IPv6
601if_indextoname NEW: IPv6
602if_nameindex NEW: IPv6
603if_nametoindex NEW: IPv6
604in6addr_any NEW: IPv6
605in6addr_loopback NEW: IPv6
606inet6_isipv4mapped NEW: IPv6
607isastream NEW: STREAMS
608iswblank NEW: GNU ext.
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609key_decryptsession NEW: Secure RPC
610key_decryptsession_pk NEW: Secure RPC
611key_encryptsession NEW: Secure RPC
612key_encryptsession_pk NEW: Secure RPC
613key_gendes NEW: Secure RPC
614key_get_conv NEW: Secure RPC
615key_secretkey_is_set NEW: Secure RPC
616key_setnet NEW: Secure RPC
617key_setsecret NEW: Secure RPC
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618llrint NEW: ISO C 9x
619llrintf NEW: ISO C 9x
620llrintl NEW: ISO C 9x
621llround NEW: ISO C 9x
622llroundf NEW: ISO C 9x
623llroundl NEW: ISO C 9x
624log2 NEW: ISO C 9x
625log2f NEW: ISO C 9x
626log2l NEW: ISO C 9x
627lrint NEW: ISO C 9x
628lrintf NEW: ISO C 9x
629lrintl NEW: ISO C 9x
630lround NEW: ISO C 9x
631lroundf NEW: ISO C 9x
632lroundl NEW: ISO C 9x
633lseek64 NEW: LFS
634makecontext NEW: Unix98
635mempcpy NEW: GNU ext.
636mmap64 NEW: LFS
637moncontrol REMOVED
638modify_ldt NEW: kernel
639nan NEW: ISO C 9x
640nanf NEW: ISO C 9x
641nanl NEW: ISO C 9x
642nearbyint NEW: ISO C 9x
643nearbyintf NEW: ISO C 9x
644nearbyintl NEW: ISO C 9x
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645netname2host NEW: Secure RPC
646netname2user NEW: Secure RPC
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647nexttoward NEW: ISO C 9x
648nexttowardf NEW: ISO C 9x
649nexttowardl NEW: ISO C 9x
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650nftw NEW: Unix98
651nftw64 NEW: LFS
652open64 NEW: LFS
e980ca92 653passwd2des NEW: Secure RPC
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654pow10 NEW: GNU ext.
655pow10f NEW: GNU ext.
656pow10l NEW: GNU ext.
657pread NEW: Unix98
658pread64 NEW: LFS
659printf_size NEW: GNU ext.
660printf_size_info NEW: GNU ext.
661profil_counter REMOVED
662pthread_mutexattr_getkind_np REPLACED
663pthread_mutexattr_setkind_np REPLACED
664ptsname NEW: Unix98 PTY
665ptsname_r NEW: Unix98 PTY
666putc_locked REMOVED
667putchar_locked REMOVED
668putgrent NEW: GNU ext.
669putmsg NEW: STREAMS
670putpmsg NEW: STREAMS
62595351 671pututxline NEW: Unix98
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672pwrite NEW: Unix98
673pwrite64 NEW: LFS
674readdir64 NEW: LFS
675readdir64_r NEW: LFS
676remquo NEW: ISO C 9x
677remquof NEW: ISO C 9x
678remquol NEW: ISO C 9x
679round NEW: ISO C 9x
680roundf NEW: ISO C 9x
681roundl NEW: ISO C 9x
682rtime NEW: GNU ext.
683scalbln NEW: ISO C 9x
684scalblnf NEW: ISO C 9x
685scalblnl NEW: ISO C 9x
686scandir64 NEW: LFS
687sendfile NEW: kernel
688setcontext NEW: Unix98
689setrlimit64 NEW: LFS
62595351 690setutxent NEW: Unix98
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691sighold NEW: Unix98
692sigignore NEW: Unix98
693sigqueue NEW: POSIX.1b
694sigrelse NEW: Unix98
695sigset NEW: POSIX.1b
696sigtimedwait NEW: POSIX.1b
697sigwaitinfo NEW: POSIX.1b
698sincos NEW: GNU ext.
699sincosf NEW: GNU ext.
700sincosl NEW: GNU ext.
701statfs64 NEW: LFS
702statvfs NEW: Unix98
703statvfs64 NEW: LFS
704strcasestr NEW: GNU ext.
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705strtoimax NEW: ISO C 9x
706strtoumax NEW: ISO C 9x
707strverscmp NEW: GNU ext.
e980ca92 708svcauthdes_stats NEW: Secure RPC
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709svcunix_create NEW: sunrpc etx
710svcunixfd_create NEW: sunrpc ext
711swapcontext NEW: Unix98
712tcgetsid NEW: Unix98 PTY
713tdestroy NEW: GNU ext.
714tgamma NEW: ISO C 9x
715tgammaf NEW: ISO C 9x
716tgammal NEW: ISO C 9x
717tmpfile64 NEW: LFS
718trunc NEW: ISO C 9x
719truncate64 NEW: LFS
720truncf NEW: ISO C 9x
721truncl NEW: ISO C 9x
722umount2 NEW: kernel
723unlockpt NEW: Unix98 PTY
62595351 724updwtmpx NEW: Unix98
e980ca92 725user2netname NEW: Secure RPC
62595351 726utmpxname NEW: Unix98
48244d09 727versionsort NEW: GNU ext.
3ef4002b 728versionsort64 NEW: GNU ext.
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729waitid NEW: Unix98
730wcscasecmp NEW: GNU ext.
731wcsncasecmp NEW: GNU ext.
732wcsnlen NEW: GNU ext.
733wcstoimax NEW: ISO C 9x
734wcstoll NEW: ISO C 9x
735wcstoull NEW: ISO C 9x
736wcstoumax NEW: ISO C 9x
737wcswcs NEW: Unix98
738wordexp NEW: POSIX.2
739wordfree NEW: POSIX.2
740write_profiling REMOVED
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741xdecrypt NEW: Secure RPC
742xdr_authdes_cred NEW: Secure RPC
743xdr_authdes_verf NEW: Secure RPC
744xdr_cryptkeyarg NEW: Secure RPC
745xdr_cryptkeyarg2 NEW: Secure RPC
746xdr_cryptkeyres NEW: Secure RPC
747xdr_getcredres NEW: Secure RPC
748xdr_key_netstarg NEW: Secure RPC
749xdr_key_netstres NEW: Secure RPC
750xdr_keybuf NEW: Secure RPC
751xdr_keystatus NEW: Secure RPC
752xdr_netnamestr NEW: Secure RPC
753xdr_sizeof NEW: Secure RPC
48244d09 754xdr_unixcred NEW: sunrpc ext
e980ca92 755xencrypt NEW: Secure RPC
48244d09 756~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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757\f
758Version 2.0.6
759
760* more bug fixes
761
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762\f
763Version 2.0.5
764
765* more bug fixes
766
767* inet_ntoa is thread-safe
768
769* updwtmp is moved from libutil to libc
770
771* rewrite of cbrt function
772
773* update of timezone data
774\f
775Version 2.0.4
776
777* more bug fixes
778\f
779Version 2.0.3
780
781* more bug fixes
c84142e8 782\f
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783Version 2.0.2
784
785* more bug fixes
786
787* add atoll function
788
789* fix complex problems in Berkeley DB code
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790
791* fix math functions
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792\f
793Version 2.0.1
794
795* fixed lots of header problems (especially Linux/GNU specific)
796
797* dynamic loader preserves all registers
798
799* Roland McGrath provided support for handling of auxiliary objects in
800 the ELF dynamic loader.
801
802* support for parallel builds is improved
803\f
40a4b79f 804Version 2.0
28f540f4 805
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806* GNU extensions are no longer declared by default. To enable them you
807 must define the macro `_GNU_SOURCE' in your program or compile with
808 `-D_GNU_SOURCE'.
809
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810* The library has changed from using GNU ld symbol aliases to using weak
811 symbols where available. The ELF object file format supports weak
812 symbols; GNU ld also supports weak symbols in the a.out format. (There
813 is also now support for other GNU ld extensions in ELF. Use the
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814 `--with-elf' option to configure to indicate you have ELF, and
815 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
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816 of many files which contained only symbol aliases, reducing the size of
817 the source and the compiled library; many other files were renamed to
818 less cryptic names previously occupied by the symbol alias files.
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819 There is a new header file <elf.h> for programs which operate on
820 files in the ELF format.
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821
822* Converted to Autoconf version 2, so `configure' has more options.
823 Run `configure --help' to see the details.
824
825* The library can now be configured to build profiling, highly-optimized
b25c5d66
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826 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
827 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
828 `configure' enable building these extra libraries. The shared library is
829 built by default when using both ELF and GNU ld. When shared libraries
830 are enabled, the new library `-ldl' is available for arbitrary run-time
831 loading of shared objects; its interface is defined in <dlfcn.h>. The
832 new header file <link.h> gives access to the internals of the run-time
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833 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
834 application of same name on other systems and it provides information
835 about dynamically linked binaries.
49e522bf 836
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837* The C library now provides the run-time support code for profiling
838 executables compiled with `-pg'. Programs can control the profiling code
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839 through the interface in <sys/gmon.h>. The `gmon.out' files written by
840 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
841 the support for this file format was contributed by David Mosberger-Tang.
71733723 842
f7eac6eb 843* The math code has been replaced with a math library based on fdlibm from
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844 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
845 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
846 functions. The math functions now reside in a separate library, so
847 programs using them will need to use `-lm' their linking commands.
848
849* John C. Bowman contributed optimized ix87 assembler inline functions.
f7eac6eb 850
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851* Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
852 mechanism similar to that found in Solaris 2. This is now used for the
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853 group, passwd, hosts, networks, services, protocols, rpc, ethers,
854 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
855 file controls what services are used for each individual database. This
856 works by loading shared libraries with names specified in `nsswitch.conf',
857 so service modules can be changed or added at any time without even
858 relinking any program. Currently there are the file, db, and NIS based
859 NSS services available.
5f0e6fc7 860
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861* The new functions `strtoq' and `strtouq' parse integer values from
862 strings, like `strtol' and `strtoul', but they return `long long int' and
863 `unsigned long long int' values, respectively (64-bit quantities).
864
865* The new functions `strtof' and `strtold' parse floating-point values from
866 strings, like `strtod', but they return `float' and `long double' values,
867 respectively (on some machines `double' and `long double' are the same).
868
869* Ulrich Drepper has contributed new implementations of the floating-point
870 printing and reading code used in the `printf' family of functions and
871 `strtod', `strtof', and `strtold'. These new functions are perfectly
872 accurate, and much faster than the old ones.
873
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874* The implementation of the POSIX locale model was completely rewritten by
875 Ulrich Drepper. This includes the new programs `localedef' and `locale'
876 to compile the POSIX locale definition.
877
878* The former dummy implementations of the strcoll and strxfrm function are
879 now replaced by fully functional code contributed by Ulrich Drepper. The
880 collation information comes from the POSIX locale definitions.
881
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882* The new header <langinfo.h> defines an interface for accessing
883 various locale-dependent data (using the locale chosen with `setlocale').
884
f7eac6eb 885* Ulrich Drepper has contributed a new suite of functions for operation on
33a934a3 886 wide-character and multibyte-character strings, in <wchar.h>;
b7407d63 887 and classification and case conversion of wide characters, in <wctype.h>.
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888 These new functions are conforming to the ISO C, Amendement 1 specification.
889
890* There is now a second implementation of the standard I/O library available.
891 It comes from GNU libg++ as was written by Per Bothner, heavily modified
892 by Hongjiu Lu and made thread safe by Ulrich Drepper.
f7eac6eb 893
71733723 894* You can now use positional parameter specifications in format strings
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895 for the `printf' and `scanf' families of functions. For example,
896 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
897 ``Number 6, Mr Jones''. This is mainly useful when providing different
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898 format strings for different languages, whose grammars may dictate
899 different orderings of the values being printed. To support this
49e522bf 900 feature, the interface for `register_printf_handler' has changed; see
d365fd2c 901 the header file <printf.h> for details.
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902
903* The `printf' and `scanf' families of functions now understand a new
904 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
905 to group numbers as indicated by the locale; for `scanf' and friends, this
906 says to accept as valid only a number with all the proper grouping
907 separators in the right places. In the default "C" locale, numbers are
908 not grouped; but locales for specific countries will define the usual
909 conventions (i.e. separate thousands with `,' in the US locale).
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910
911* The pgrp functions have been regularized, slightly incompatibly but much
912 less confusingly. The core functions are now `getpgid' and `setpgid',
913 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
914 argument) and BSD `setpgrp' (identical to `setpgid') functions are
915 provided for compatibility. There is no longer an incompatible `getpgrp'
916 with an argument declared under _BSD_SOURCE; no BSD code uses it.
917
918* The new header file <fts.h> and suite of functions simplify programs that
919 operate on directory trees. This code comes from 4.4 BSD.
920
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921* The resolver code has been updated from the BIND 4.9.5-P1 release.
922 Parts of the code were heavily modified by Ulrich Drepper to fit in the
923 NSS scheme used in glibc.
28f540f4 924
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925* There is a new malloc debugging hook `__memalign_hook'.
926
927* There are new typedefs `ushort' for `unsigned short int' and `uint' for
928 `unsigned int' in <sys/types.h>. These are for compatibility only and
929 their use is discouraged.
930
931* The `-lmcheck' library to enable standard malloc debugging hooks is now
932 done differently, so that it works even without GNU ld.
787126fe 933
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934* New function `euidaccess' checks allowed access to a file like `access',
935 but using the effective IDs instead of the real IDs.
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936
937* The time zone data files have been updated for the latest and greatest
938 local time conventions of the countries of the world.
939
940* The new function `dirfd' extracts the file descriptor used by a DIR stream;
941 see <dirent.h>.
942
943* The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
944 for formatting floating-point numbers. They are provided only for
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945 compatibility; new programs should use `sprintf' instead. There are
946 also equivalent function for the `long double' floating-point type and
947 all functions also exist in a reentrant form.
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948
949* The new auxiliary library `-lutil' from 4.4 BSD contains various
950 functions for maintaining the login-record files (primarily of use to
951 system programs such as `login'), and convenient functions for
952 allocating and initializing a pseudo-terminal (pty) device.
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953
954* Ulrich Drepper has contributed new support for System V style
955 shared memory and IPC on systems that support it.
956
957* Ulrich Drepper has contributed several miscellaneous new functions found
958 in System V: The `hsearch' family of functions provide an effective
959 implementation of hash tables; `a64l' and `l64a' provide a very simple
960 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
961 number generator.
962
963* Ulrich Drepper has contributed new reentrant counterparts for the
964 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
965
966* Ulrich Drepper has contributed new, highly-optimized versions of several
967 string functions for the i486/Pentium family of processors.
968
71733723 969* Ulrich Drepper has updated the Linux-specific code, based largely
c709e372 970 on work done in Hongjiu Lu's version of GNU libc for Linux.
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971 The GNU library now supports Linux versions 2.0.10 and later,
972 using the ELF object file format (i[3456]86-*-linux).
c709e372 973
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974* Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
975
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976* David Mosberger-Tang and Richard Henderson have ported the C library
977 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
978 dynamic linking support for ELF/Alpha.
979
980* Richard Henderson contributed several Alpha optimized assembler function
981 for arithmetic and string handling.
d3669add 982
c709e372 983* Ulrich Drepper has contributed a new set of message catalog functions to
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984 support multiple languages using the <libintl.h> interface, for use with
985 his new package GNU gettext. Translation volunteers have contributed
986 catalogs of the library's messages in Spanish, German, and Korean.
987
988* For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
989 program and the `catgets' function for reading the catalog files it
990 creates. (The <libintl.h> interface is preferred; we include the
991 <nl_types.h> interface using `catgets' only for source compatibility with
992 programs already written to use it.)
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993
994* New header file <values.h> gives SVID-compatible names for <limits.h>
995 constants.
996
997* Various new macros, declarations, and small header files for compatibility
998 with 4.4 BSD.
999
1000* New function `group_member' is a convenient way to check if a process has
1001 a given effective group ID.
1002
1003* When using GCC 2.7 and later, the socket functions are now declared in a
1004 special way so that passing an argument of type `struct sockaddr_in *',
1005 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
1006 `struct sockaddr *' type, does not generate a type-clash warning.
1007
1008* New function `error' declared in header file <error.h> is a convenient
6d52618b 1009 function for printing error messages and optionally exiting; this is the
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1010 canonical function used in GNU programs. The new functions `err', `warn',
1011 and friends in header file <err.h> are the canonical 4.4 BSD interface for
1012 doing the same thing.
1013
1014* The <glob.h> interface has several new flags from 4.4 BSD that extend the
1015 POSIX.2 `glob' function to do ~ and {...} expansion.
1016
1017* New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
33a934a3 1018 `clearenv' which is used in POSIX.9 is also available.
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1019
1020* New function `getsid' returns session ID number on systems that support it.
1021
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1022* We have incorporated the 4.4 BSD `db' library (version 1.85). New header
1023 files <db.h> and <mpool.h> provide a rich set of functions for several
1024 types of simple databases stored in memory and in files, and <ndbm.h> is
6d52618b 1025 an old `ndbm'-compatible interface using the `db' functions. Link with
999493cb 1026 `-ldb' to get these functions.
f7eac6eb
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1027
1028* New macro `strdupa' copies a string like `strdup', but uses local stack
1029 space from `alloca' instead of dynamic heap space from `malloc'.
52e9a9d1
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1030
1031* New function `strnlen' is like `strlen' but searches only a given maximum
33a934a3
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1032 number of characters for the null terminator. `stpncpy', `strndup' and
1033 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1034 function.
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1035
1036* New function `statfs' in header <sys/statfs.h>.
1037
1038* The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1039 provide convenient functions for operating on blocks of null-terminated
1040 strings.
1041
1042* A new suite of functions in <utmp.h> handle all the details of reading
1043 and writing the utmp file.
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1044
1045* An implementation of the NIS/YP(tm) based NSS service was contributed by
1046 Thorsten Kukuk.
1047
1048* Paul Eggert and Ulrich Drepper modified the `strftime' function to be
1049 completely POSIX compliant and also implemented the extended functionality
1050 to handle alternate digit representation and alternate era date formats.
1051
1052* Ulrich Drepper provided an implementation of the `strptime' function
1053 defined in XPG4.2 which transforms a string into a `struct tm' value.
1054
1055* Paul Eggert provided the tzselect shell script as part of the timezone
1056 code. The shell script makes it easy to select the correct timezone
1057 specification.
1058
1059* The implementation of the malloc family of functions is completely replaced
1060 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
1061 The implementation uses the mmap function (if available) and it is
1062 optimized for the use in multi threaded programs.
1063
1064* Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
1065 functions. This new functionality is usable by specifying a special
1066 salt string and it is compatible with implementation on *BSD systems.
1067
1068* Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
1069 `getsubopt' to handle second level command line options, `bsd_signal'
1070 to access BSD style `signal' functionality, the obsolete `regexp' style
1071 expression matcher.
1072
1073* the `lchown' function is available on system which support this
1074 functionality.
1075
1076* The implementation of the shadow password handling function was contributed
1077 by Ulrich Drepper.
1078
1079* David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
1080
1081* POSIX.1g support was added. The <sys/select.h> header is available,
1082 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
1083 implementation of `getaddrinfo'.
28f540f4
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1084\f
1085Version 1.09
1086
1087* For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
1088
1089* New header file <fstab.h> and new functions `getfsspec', `getfsent' and
1090 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
1091
1092* The new function `daemon' from 4.4 BSD is useful for server programs that
1093 want to put themselves in the background.
1094
1095* Joel Sherrill has contributed support for several standalone boards that
1096 run without an operating system.
1097
1098* `printf', `scanf' and friends now accept a `q' type modifier for long
1099 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
1100
1101* All of the code taken from BSD (notably most of the math and networking
1102 routines) has been updated from the BSD 4.4-Lite release.
1103
1104* The resolver code has been updated from the BIND-4.9.3-BETA9 release.
1105
1106* The new functions `getdomainname' and `setdomainname' fetch or change the
1107 YP/NIS domain name. These are system calls which exist on systems which
1108 have YP (aka NIS).
1109
1110* The time zone data files have been updated for the latest international
1111 conventions.
1112
1113* The SunRPC programs `portmap' and `rpcinfo' are now installed in
1114 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
1115\f
1116Version 1.08
1117
1118* The C library now includes support for Sun RPC, from Sun's free
1119 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
1120 are included. (There is still no support for YP.)
1121
1122* Tom Quinn has contributed a port of the C library to SGI machines running
1123 Irix 4 (mips-sgi-irix4).
1124
1125* The new `lockf' function is a simplified interface to the locking
1126 facilities of `fcntl', included for compatibility.
1127
1128* New time functions `timegm', `timelocal', and `dysize' for compatibility.
1129
1130* New header file <sys/timeb.h> and new function `ftime' for compatibility.
1131
1132* New header files <poll.h> and <sys/poll.h> and new function `poll' for
1133 compatibility.
1134
1135* The error message printed by `assert' for a failed assertion now includes
1136 the name of the program (if using GNU ld) and the name of the calling
1137 function (with versions of GCC that support this).
1138
1139* The `psignal' function is now declared in <signal.h>, not <stdio.h>.
1140
1141* The library now includes the <sys/mman.h> header file and memory
1142 management functions `mmap', `munmap', `mprotect', `msync', and
1143 `madvise', on systems that support those facilities.
1144
1145* The interface for `mcheck' has changed slightly: the function called to
1146 abort the program when an allocation inconsistency is detected now takes
1147 an argument that indicates the type of failure. The new function
1148 `mprobe' lets you request a consistency check for a particular block at
1149 any time (checks are normally done only when you call `free' or `realloc'
1150 on a block).
1151
1152* It is now possible to easily cross-compile the C library, building on one
1153 system a library to run on another machine and/or operating system. All
1154 you need to do is set the variable `HOST_CC' in `configparms' to the
1155 native compiler for programs to run on the machine you are building on (a
1156 few generator programs are used on Unix systems); set `CC' to the
1157 cross-compiler.
1158
1159* The new function `fexecve' (only implemented on the GNU system) executes
1160 a program file given a file descriptor already open on the file.
1161\f
1162Version 1.07
1163
1164* Brendan Kehoe has contributed most of a port to the DEC Alpha
1165 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
1166
1167* You can set the variable `libprefix' in `configparms' to specify a prefix
1168 to be prepended to installed library files; this makes it easy to install
1169 the GNU C library to be linked as `-lgnuc' or whatever.
1170
1171* The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
1172 copies a limited number of characters from a string, and returns the
1173 address of the last character written.
1174
1175* You no longer need to check for whether the installed `stddef.h' is
1176 compatible with the GNU C library. configure now checks for you.
1177
1178* You can now define a per-stream `fileno' function to convert the
1179 stream's cookie into an integral file descriptor.
1180
1181* ``malloc (0)'' no longer returns a null pointer. Instead, it
1182 allocates zero bytes of storage, and returns a unique pointer which
1183 you can pass to `realloc' or `free'. The behavior is undefined if
1184 you dereference this pointer.
1185
1186* The C library now runs on Sony NEWS m68k machines running either
1187 NewsOS 3 or NewsOS 4.
1188
1189* The new `syscall' function is a system-dependent primitive function
1190 for invoking system calls. It has the canonical behavior on Unix
1191 systems, including unreliable return values for some calls (such as
1192 `pipe', `fork' and `getppid').
1193
1194* The error code `EWOULDBLOCK' is now obsolete; it is always defined
1195 to `EAGAIN', which is the preferred name. On systems whose kernels
1196 use two distinct codes, the C library now translates EWOULDBLOCK to
1197 EAGAIN in every system call function.
1198\f
1199Version 1.06
1200
1201* The GNU C Library Reference Manual is now distributed with the library.
1202 `make dvi' will produce a DVI file of the printed manual.
1203 `make info' will produce Info files that you can read on line using C-h i
1204 in Emacs or the `info' program.
ea278354 1205 Please send comments on the manual to bug-glibc-manual@gnu.org.
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1206
1207* The library now supports SVR4 on i386s (i386-unknown-sysv4).
1208
1209* Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
1210
1211* Jason Merrill has contributed a port to the Sequent Symmetry running
1212 Dynix version 3 (i386-sequent-dynix).
1213
1214* The library has been ported to i386s running SCO 3.2.4 (also known as SCO
1215 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
1216
1217* New function `memory_warnings' lets you arrange to get warnings when
1218 malloc is running out of memory to allocate, like Emacs gives you.
1219
1220* The C library now contains the relocating allocator used in Emacs 19 for
1221 its editing buffers. This allocator (ralloc) minimizes allocation
1222 overhead and fragmentation by moving allocated regions around whenever it
1223 needs to. You always refer to a ralloc'd region with a "handle" (a
1224 pointer to a pointer--an object of type `void **').
1225
1226* There is a new `printf' format: `%m' gives you the string corresponding
1227 to the error code in `errno'.
1228
1229* In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
1230 or `%[' conversion, but instead of filling in a fixed-sized buffer you
1231 pass, the `a' modifier says to fill in a `char **' you pass with a
1232 malloc'd string.
1233
1234* The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
1235 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
1236 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
1237
1238* `mkstemp' is a traditional Unix function to atomically create and open a
1239 uniquely-named temporary file.
1240\f
1241Version 1.05
1242
1243* The standard location for the file that says what the local timezone is
1244 has changed again. It is now `/usr/local/etc/localtime' (or more
1245 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
1246
1247* The distribution no longer contains any files with names longer than 14
1248 characters.
1249
1250* `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
1251 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
1252
1253* New functions `ttyslot' and `syslog' from 4.4 BSD.
1254\f
1255Version 1.04
1256
1257* The configuration process has changed quite a bit. The `configure'
1258 script is now used just like the configuration scripts for other GNU
1259 packages. The `sysdeps' directory hierarchy is much rearranged.
1260 The file `INSTALL' explains the new scheme in detail.
1261
1262* The header files no longer need to be processed into ANSI C and
1263 traditional C versions. There is just one set of files to install, and
1264 it will work with ANSI or old C compilers (including `gcc -traditional').
1265
1266* Brendan Kehoe and Ian Lance Taylor have ported the library to the
1267 MIPS DECStation running Ultrix 4.
1268
1269* The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
1270 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
1271 made itself into a shared library.
1272
1273* Yet further improved support for the i386, running 4.3 BSD-like systems
1274 (such as Mach 3 with the Unix single-server), or System V.
1275
1276* New function `strncasecmp' to do case-insensitive string comparison
1277 with limited length.
1278
1279* New function `strsep' is a reentrant alternative to `strtok'.
1280
1281* New functions `scandir' and `alphasort' for searching directories.
1282
1283* New function `setenv' is a better interface to `putenv'.
1284
1285* Ian Lance Taylor has contributed an implementation of the SVID `ftw'
1286 function for traversing a directory tree.
1287
1288* The GNU obstack package is now also part of the C library.
1289 The new function `open_obstack_stream' creates a stdio stream that
1290 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
1291 formatted output directly to an obstack.
1292
1293* Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
1294 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
1295
1296* `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
1297
1298* The new functions `strfry' and `memfrob' do mysterious and wonderful
1299 things to your strings.
1300
1301* There are some new test programs: test-fseek, testmb, and testrand.
1302
1303* Some work has been done to begin porting the library to 4.4 BSD and Linux.
1304 These ports are not finished, but are a good starting place for really
1305 supporting those systems.
1306
1307* `/etc/localtime' is now the standard location for the file that says what
1308 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
1309 This follows the general principle that `/etc' is the place for all local
1310 configuration files.
1311
1312* The C library header files now use `extern "C"' when used by the C++
1313 compiler, so the C library should now work with C++ code.
1314
1315* The header file <bstring.h> is gone. <string.h> now declares bcopy,
56ddf355
UD
1316 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
1317 in <strings.h>.)
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1318
1319* Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
1320 function which uses the `merge sort' algorithm, and is said to be
1321 significantly faster than the old GNU `qsort' function. Merge sort is
1322 now the standard `qsort' function. The new algorithm can require a lot
1323 of temporary storage; so, the old sorting function is called when the
1324 required storage is not available.
1325
1326* The C library now includes Michael Glad's Ultra Fast Crypt, which
1327 provides the Unix `crypt' function, plus some other entry points.
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1328
1329* The code and header files taken from 4.4 BSD have been updated with the
1330 latest files released from Berkeley.
1331\f
1332----------------------------------------------------------------------
1333Copyright information:
1334
56ddf355 1335Copyright (C) 1992-1999, 2000 Free Software Foundation, Inc.
28f540f4
RM
1336
1337 Permission is granted to anyone to make or distribute verbatim copies
1338 of this document as received, in any medium, provided that the
1339 copyright notice and this permission notice are preserved,
1340 thus giving the recipient permission to redistribute in turn.
1341
1342 Permission is granted to distribute modified versions
1343 of this document, or of portions of it,
1344 under the above conditions, provided also that they
1345 carry prominent notices stating who last changed them.
1346\f
1347Local variables:
1348version-control: never
557a9213 1349End: