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925c3c5c 1GNU C Library NEWS -- history of user-visible changes. 2003-4-24
45e4762c 2Copyright (C) 1992-2002,2003 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
a753ffb2 6<bugs@gnu.org>. Please send questions and suggestions to <bug-glibc@gnu.org>.
2e92188d 7\f
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8Version 2.3.3
9
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10* New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
11 interrogate the dynamic linker, compatible with the Solaris interface.
12
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13* ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
14 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
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15
16* getifaddrs new uses on Linux the netlink interface to get the information.
17 Implemented by Thorsten Kukuk.
18
19* getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
20 Implemented by Ulrich Drepper.
3a601d31 21\f
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22Version 2.3.2
23
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24* Thread-safe interfaces for many functions that access locale data
25 were added in version 2.3, but these features were omitted from NEWS.
26 Many functions have variants with an `_l' suffix that take a `locale_t'
27 object as a parameter rather than consulting the current locale.
28 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
29 create and maintain `locale_t' objects. Additionally, the new function
30 `uselocale' sets "the current locale" (as used by functions not so
31 parameterized) set for an individual thread. These features were added
32 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
33
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34* The functions getresuid, getresgid, setresuid, and setresgid, which
35 have long been available on Linux, are now declared in <unistd.h>
36 and are now also available on the Hurd.
37
38* ELF thread-local storage support (TLS) now works on x86-64.
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39
40* The new dynamic string token $LIB is expanded in shared library names.
41 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
52a16e58 42
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43* Aldy Hernandez contributed complete software floating point support for
44 PowerPC machines with no FPU.
45
52a16e58 46* fexecve is implemented on Linux.
f9ad060c 47
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48* The `btowc' function should work at least twice as fast due to
49 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
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50
51* With approriate thread add-ons cancelable functions are now implemented
52 in libc.so as well. No need to call the function in libpthread. This
53 change allowed to finally disable the incorrect and expensive handling
54 of weak definition in ld.so.
55
56* Yet more PLT entries in libc.so have been removed. We finally arrived
57 at the bare minimum. Startup times improved appropriately.
58
59* Support for the new Linux/x86 system call interface was added. The
60 AT_SYSINFO auxiliary vector entry is recognized and handled.
747bf98e 61\f
03a2c647 62Version 2.3
37fb1084 63
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64* Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
65 charsets.
66
67* iconv (the program and the interface) now accepts empty names (excluding
68 options like //TRANSLIT) to mean "use charset of current locale".
47e8b443 69
bb0ec5bd 70* localedef can now transliterate characters in strings which are not in
47e8b443 71 the provided charmap. The information from the input locale is used.
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72
73* Prelinking support was added for ELF targets. This requires additional
74 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
8e57fc70 75
bb0ec5bd 76* Read-only stdio streams now use mmap to speed up operation by eliminating
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77 copying and buffer underflows. To use add 'm' to the mode string of
78 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
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79
80* The malloc functions were completely rewritten by Wolfram Gloger based
81 on Doug Lea's malloc-2.7.0.c.
3b0bdc72 82
bb0ec5bd 83* Isamu Hasegawa contributed a completely new and POSIX-conformant
3b0bdc72 84 implementation of regex.
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85
86* Bruno Haible upgraded the iconv and locale implementation to support
87 Unicode 3.2.
be45f421 88
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89* Contents of the LC_* and LANG environment variables in the CEN style are
90 not recognized anymore. It never was used. Change by Ulrich Drepper.
be45f421 91
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92* The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
93 thread-local storage (TLS) ABI on some platforms.
94 Changes by Ulrich Drepper. SH support by Kaz Kojima.
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95
96* Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
f87277f2 97 EUC-JISX0213, and TSCII.
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98
99* New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
100 BSD-compatible interface for getting all network interface addresses.
101 Implementation for IPv4 by Roland McGrath.
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102
103* Loading of locale data is faster due to the introduction of a locale
104 archive. Implemented by Roland McGrath and Ulrich Drepper.
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105
106* Startup times are significantly reduced by not using exported functions
107 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
108 and Ulrich Drepper.
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109
110* Steven Munroe contributed a port to PowerPC64/Linux.
111\f
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112Version 2.2.6
113
114* The Hurd now uses the GNU libio implementation of stdio rather than the
115 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
116
117* The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
118 with the same behavior as the Linux system call of the same name.
03a2c647 119\f
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120Version 2.2.5
121
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122* Stephen Moshier implemented log2, log10, powl and cbrtl for the
123 128-bit long double format.
a8ae31c2 124
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125* Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
126 IBM1161, and IBM1162 charsets.
a8ae31c2 127
ad2e4f18 128* Andreas Jaeger contributed a port to x86-64/Linux.
a8ae31c2 129
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130* Peter Bruin contributed a port to PowerPC/Hurd.
131
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132* libc functions using I/O streams now can handle wide-oriented streams
133 as well.
134
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135* optimizations in the dynamic linker. Binaries created by recent binutils
136 versions start up quicker due to reduced time spent on relocations.
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137
138* Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
7d0c5823 139\f
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140Version 2.2.4
141
2995f70e 142* Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
aff17a50 143 asinh, atanh, j0 for the 128-bit long double format.
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144
145* Bruno Haible updated all the code handling Unicode in some form to
146 support Unicode 3.1.
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147
148* Speed of regex for single-byte locales is back to previous levels.
149 Patch by Isamu Hasegawa.
045fcd26 150
69d5f925 151* Alpha, SPARC, and IA-64 now also using floating stacks.
045fcd26 152
69d5f925 153* Startup time of internationalized applications greatly improved through
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154 iconv cache. Use iconvconfig to generate the cache file.
155 Contributed by Ulrich Drepper.
156
157* The IA-64 specific part of ld.so was rewritten to eliminate some pretty
158 severe performance problems. Patch by David Mosberger.
159
160* The Hurd port got a lot more functionality like AIO, various stdio
161 extensions, etc. Mainly done by Roland McGrath.
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162
163* mtrace can now lookup symbols in shared libraries.
33996419 164\f
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165Version 2.2.3
166
1746f2b0 167* Intel's IA-64 math library is largely integrated. It provides fast and
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168 accurate implementatations for most basic and standard math functions
169 in float, double, and long double format.
170
f128331c 171* Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
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172 and asin for the 96-bit long double format and asin, log, tan for the
173 128-bit long double format.
07f951e4 174
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175* The beginning of a last-bit accurate math library by IBM Haifa were added.
176 The basic double functions exist today. Contributed by Abraham Ziv
177 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
178 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
179
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180* An asynchronous name lookup library was added. The interface is designed
181 after POSIX AIO. The proposal was circulated beforehand to get comments.
182 No negative ones came in. Implemented by Ulrich Drepper.
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183
184* Port to S390/64bit contributed by Martin Schwidefsky
185 <schwidefsky@de.ibm.com>.
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186
187* David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
188 of functions for Linux/IA-64.
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189
190* The RPC code is now thread safe. Threads can now use the same service
191 of different services at the same time. Patch by Eric Norum
192 <eric.norum@usask.ca> with some help by Ulrich Drepper.
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193
194* Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
195 family of functions for Linux/S390.
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196
197* Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
198 of functions for Linux/x86.
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199
200* Port to Linux/CRIS contributed by Axis Communications.
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202Version 2.2.2
203
464d97ec 204* Lots of headers were cleaned up. Using the tool in the conform/ subdir
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205 we can now check for namespace violations and missing declarations. The
206 result is that almost all headers are now Unix-compliant (as defined in
207 the upcoming XPG6). The negative side is that some programs might need
208 corrections, too, if they depend on the incorrect form of the headers in
209 previous versions which defined too many symbols and included too many
210 other headers.
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211
212* regex now handles multibyte character sets correctly.
213 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
214
215* iconv (the program) does now conform to the upcoming XPG6 and handles
216 charmaps. Instead of the charset names the path of charmaps can be
217 provided and the conversion happens based on this data.
218 Contributed by Ulrich Drepper.
219
220* The locale program now provides detailed information about the installed
221 locales. While
222
223 locale -a
224
225 only lists the names of the supported locales
226
227 locale -a --verbose
228
229 provides details such as country, language, and codeset name.
230 Contributed by Ulrich Drepper.
306eeae5 231\f
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232Version 2.2.1
233
234* The gencat program now parses the input file according to the charset
235 selected by the LC_CTYPE category. This is important for stateful
236 character sets. To make generating catalogs easier there is a way
237 to overwrite the charset selected by the locale: before the first
238 message or $ quote line the catalog can contain a line like
239
240 $ codeset=ISO-8859-2
241
242 to select the charset (ISO-8859-2 in this case).
243
244 Implemented by Shinya Hanataka and Ulrich Drepper.
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245
246* New codeset conversion modules: IBM-922 (Estonia PC codeset),
247 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
248 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
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249
250* Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
251 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
252
253* The LANGUAGE environment variable is now ignored unless the locale is
254 changed from the default "C" locale.
255
256* The usual bug fixes.
d2defdc4 257\f
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258Version 2.2
259
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260* Greg McGary added runtime support for bounds checking using gcc's
261 new -fbounded-pointers option. ix86 target is complete. PowerPC
262 is in progress.
263
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264* Thorsten Kukuk added secure mode support to nscd.
265
793bd4d9 266* The Berkeley db libraries have been removed.
2e92188d 267
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268 Related, the nss_db module is now in a separate package since it
269 obviously requires a database library being available.
270
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271* Wide character I/O streams implemented by Ulrich Drepper.
272
abbffdf9 273* Functions from the extended socket API added by Ulrich Drepper.
01c771d0 274
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275* Functions feenableexcept and fedisableexcept to control the
276 behaviour of individual exceptions have been added by Andreas Jaeger.
277
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278* ldconfig program added by Andreas Jaeger and Jakub Jelinek.
279
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280* The resolver code has been updated from bind 8.2.3-T5B which supports
281 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
282 and Mark Kettenis.
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283
284 This change could in some situations effect backward compatibility. Since
285 now `_res' is a thread-local instead of a global variable, modifying it
286 in one thread does not have any effect in other threads.
66ac0abe 287
a00c3ca9 288 The resolver library was also extended to allow IPv6 as the transport
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289 protocol for the requests. This work was done by Stig Venaas.
290
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291* Compatibility code for K&R C compilers has been removed from the
292 header files. A ISO C compiler is needed to use the library
293 (conforming to either C89 or C99 standard).
294
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295* Complete rewrite of the localedef program to support multibyte character
296 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
297 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
298 Implemented by Ulrich Drepper.
299
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300 Bruno Haible significantly improved the generation and use of the data
301 structures for the wide character tables.
302
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303* Plural handling in gettext implemented by Ulrich Drepper.
304
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305* The utmp daemon has been removed.
306
307* The port to MIPS-Linux has been finished by Andreas Jaeger.
308
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309* A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
310 and Yutaka Niibe.
311
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312* POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
313
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314* POSIX barriers implemented by Kaz Kylheku.
315
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316* POSIX spawn function family implemented by Ulrich Drepper.
317
318* POSIX spinlocks are now available.
319
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320* Timed wait functions for mutex, rwlock, and semaphores are implemented.
321
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322* the configure option --enable-kernel=X.Y.Z allows to strip out
323 compatibility for kernel versions before X.Y.Z. This is currently only
324 implemented for Linux.
325
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326* the sockaddr_in6 structure changed. The IPv6 working group added a new
327 field sin6_scope_id. This means that all programs using IPv6 should be
328 recompiled. Don't expect binary compatibility with previous glibc
329 versions.
330
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331* various conversion modules for IBM character sets contributed by
332 Masahide Washizawa.
333
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334* IA-64 port by Jes Sorensen and HJ Lu.
335
336~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
337Compiling the GNU C Library for Linux/ia64
338******************************************
339
340 Please refer to the file INSTALL in the same directory as you found
341this file for general information about configuring and compiling
342glibc.
343
344 For general inquiries about glibc under Linux/ia64 please use the
345following mailing list linux-ia64@linuxia64.org or one of the relevant
346glibc mailing lists.
347
348Recommended Tools for Compilation
349=================================
350
351 In order for glibc-2.2 to build correctly on the ia64 you need at
352least the following versions of the GNU tools (the :
353
354 * The Cygnus toolchain snapshot for the ia64 as of August 4
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355 including the provided set of patches. It is however recommend
356 you use the October 24 toolchain snapshot or a more recent version.
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357
358 OR alternatively you can try the following (the Cygnus toolchain is
359 the recommended solution):
360
361 * GCC and binutils, GAS and GNU LD out of CVS from
aea6353a 362 sources.redhat.com as of August 28, 2000 or later. The CVS tree
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363 may require special patches to work properly on the ia64.
364
365Configuring and compiling GNU Libc for Linux/ia64
366=================================================
367
368 The library requires Linux kernel version 2.4.0-test4-000728 or
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369later to funtion properly. Besides that it support for debug libraries
370is currently untested. Hence the following options
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371are required for configuring the library:
372
aea6353a 373 --disable-debug --enable-kernel=2.4.0
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374
375 It is also important that you make sure the library picks up the
376appropriate kernel header files, if you do not have recent enough
377kernel headers in /usr/src/linux/include, you should use the
378--with-headers=<path> option to specify the location.
379
380 As an example I personally use the following options to configure
381the library:
382
383 --disable-debug
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384 --disable-cvs
385 --enable-kernel=2.4.0
386 --host=ia64-linux
387 --enable-add-ons=yes
388 --prefix=/usr
389 --with-headers=/home/jes/linux/include
390
391
392Good luck
393
394Jes Sorensen <jes@linuxcare.com>,
aea6353a 395November 14th, 2000
8f3f1e09 396~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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397\f
398Version 2.1.3
399
400* bug fixes
401
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402\f
403Version 2.1.2
404
405* bug fixes
406
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408Version 2.1.1
409
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410* New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
411
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412* New xdr functions are added; some rpc functions are now 64bit clean.
413
407d26b7 414* Fixed a number of bugs and memory leaks (especially in NIS+ code).
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415
416* Fixed known incompatibilities with glibc 2.0.
417
407d26b7 418* New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
16b0f634 419
407d26b7 420* Optimized a number of functions (especially the ELF dynamic loader).
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421
422* Update timezone data files.
27995311 423
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424* lots of charmaps corrections
425
426* some new locale definitions and charmaps
427
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429Version 2.1
430
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431* Richard Henderson corrected size of struct timeval on Linux/Alpha to
432 conform to POSIX member type requirements. Symbol versions have been
433 adjusted as needed within the library, and for direct use by applications,
434 but there is potential for problems if third-party libraries use
435 struct timeval as part of their interface. This does not present
436 a problem for X and other "essential" system libraries.
437
c84142e8 438* An additional locale model to support C++ Standard Library locale
1fb05e3d 439 model and probably more was implemented by Ulrich Drepper.
c84142e8 440
1fb05e3d 441* Eric Youngdale and Ulrich Drepper implemented versioning of objects on
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442 symbol level.
443
444* Miles Bader provided the `argp' function family to support hierachical
445 command line argument parsing, layered on top of getopt.
377a515b 446
cbdee279 447* strtod accepts new hexadecimal floating-point format from ISO C 9X.
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448
449* printf has two new specifiers %a and %A to print hexadecimal flaoting-point
cbdee279 450 numbers.
377a515b 451
cbdee279 452* scanf recognizes the %a and %A format for scanning floating point numbers.
e61abf83 453
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454* the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
455 information and interfaces for the available integer types.
e61abf83 456
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457* about 130 new math functions were added to implement the ISO C9x math
458 library.
459
e61abf83 460* the new header <complex.h> contains definitions of the complex math
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461 functions from ISO C 9X.
462
463* the new header <tgmath.h> defines generic macros to use complex or
464 real valued functions.
e61abf83 465
a5a0310d 466* Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
e61abf83 467
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468* Andreas Jaeger provided a test suite for the math library.
469
470* Mark Kettenis implemented the utmpx interface and an utmp daemon.
cbdee279 471
440d13e2 472* Ulrich Drepper added character set conversion functions (iconv).
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473
474* Optimized string functions have been added.
475
476* The localedata addon is now part of glibc.
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477
478* An implementation of profiling shared libraries was added by Ulrich Drepper.
ea278354 479
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480* Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
481 daemon for NSS (nscd).
482
483 Missing a better place here are some numbers on improvements. Under
484 Linux 2.1.125 un-tar-ing the kernel sources takes
485
0dee6738 486 user system wall
48244d09 487
0dee6738 488 using local files 12.19s 6.88s 22.91s
48244d09 489
0dee6738 490 using NIS 13.92s 8.91s 26.34s
48244d09 491
0dee6738 492 using NIS & nscd 10.37s 7.34s 25.30s
48244d09 493
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494 using NIS+ 27.57s 30.37s 640.46s
495
496 using NIS+ & nscd 10.25s 7.83s 26.51s
497
498 using NIS & old nscd [1] 13.83s 8.32s 29.60s
48244d09 499
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500 Keep in mind that non-namelookup related operations dominate above times.
501 It was just a common complain that using NIS+ unpacking the kernel is
0dee6738 502 horribly slow.
48244d09 503
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504 [1] The old nscd implementation is not available anymore since it was
505 distributed with glibc up to version 2.0.98 and thus is now replaced.
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506
507* Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
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508
509* Mark Kettenis provided a Hesiod NSS module.
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510
511* The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
512 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
513
514* rcmd can now handle netgroups (Dick Streefland).
48244d09 515
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516* A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
517 Bambrough.
518
519* Support for the IPv6 protocol has been added to the socket API, as per the
520 latest draft standards.
521
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522* Support for Linux 2.2 has been added.
523
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524* Interface changes relative to the latest 2.0.x release:
525~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
62595351 526addseverity NEW: Unix98
48244d09 527alphasort64 NEW: LFS
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528argp_err_exit_status NEW: argp, GNU ext
529argp_error NEW: argp, GNU ext
530argp_failure NEW: argp, GNU ext
531argp_help NEW: argp, GNU ext
532argp_parse NEW: argp, GNU ext
533argp_program_bug_address NEW: argp, GNU ext
534argp_program_version NEW: argp, GNU ext
535argp_program_version_hook NEW: argp, GNU ext
536argp_state_help NEW: argp, GNU ext
537argp_usage NEW: argp, GNU ext
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538authdes_create NEW: Secure RPC
539authdes_getucred NEW: Secure RPC
540authdes_pk_create NEW: Secure RPC
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541backtrace NEW: GNU ext.
542backtrace_symbols NEW: GNU ext.
543backtrace_symbols_fd NEW: GNU ext.
544cacos NEW: ISO C 9x
545cacosf NEW: ISO C 9x
546cacosh NEW: ISO C 9x
547cacoshf NEW: ISO C 9x
548cacoshl NEW: ISO C 9x
549cacosl NEW: ISO C 9x
550capget NEW: kernel
551capset NEW: kernel
552carg NEW: ISO C 9x
553cargf NEW: ISO C 9x
554cargl NEW: ISO C 9x
555casin NEW: ISO C 9x
556casinf NEW: ISO C 9x
557casinh NEW: ISO C 9x
558casinhf NEW: ISO C 9x
559casinhl NEW: ISO C 9x
560casinl NEW: ISO C 9x
561catan NEW: ISO C 9x
562catanf NEW: ISO C 9x
563catanh NEW: ISO C 9x
564catanhf NEW: ISO C 9x
565catanhl NEW: ISO C 9x
566catanl NEW: ISO C 9x
e980ca92 567cbc_crypt NEW: Secure RPC
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568ccos NEW: ISO C 9x
569ccosf NEW: ISO C 9x
570ccosh NEW: ISO C 9x
571ccoshf NEW: ISO C 9x
572ccoshl NEW: ISO C 9x
573ccosl NEW: ISO C 9x
574cexp NEW: ISO C 9x
575cexpf NEW: ISO C 9x
576cexpl NEW: ISO C 9x
577cimag NEW: ISO C 9x
578cimagf NEW: ISO C 9x
579cimagl NEW: ISO C 9x
580clearerr_locked REMOVED
581clntunix_create NEW: sunrpc ext
582clog NEW: ISO C 9x
583clog10 NEW: ISO C 9x
584clog10f NEW: ISO C 9x
585clog10l NEW: ISO C 9x
586clogf NEW: ISO C 9x
587clogl NEW: ISO C 9x
588conj NEW: ISO C 9x
589conjf NEW: ISO C 9x
590conjl NEW: ISO C 9x
591cpow NEW: ISO C 9x
592cpowf NEW: ISO C 9x
593cpowl NEW: ISO C 9x
594cproj NEW: ISO C 9x
595cprojf NEW: ISO C 9x
596cprojl NEW: ISO C 9x
597creal NEW: ISO C 9x
598crealf NEW: ISO C 9x
599creall NEW: ISO C 9x
600creat64 NEW: LFS
601csin NEW: ISO C 9x
602csinf NEW: ISO C 9x
603csinh NEW: ISO C 9x
604csinhf NEW: ISO C 9x
605csinhl NEW: ISO C 9x
606csinl NEW: ISO C 9x
607csqrt NEW: ISO C 9x
608csqrtf NEW: ISO C 9x
609csqrtl NEW: ISO C 9x
610ctan NEW: ISO C 9x
611ctanf NEW: ISO C 9x
612ctanh NEW: ISO C 9x
613ctanhf NEW: ISO C 9x
614ctanhl NEW: ISO C 9x
615ctanl NEW: ISO C 9x
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616des_setparity NEW: Secure RPC
617ecb_crypt NEW: Secure RPC
62595351 618endutxent NEW: Unix98
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619exp10 NEW: ISO C 9x
620exp10f NEW: ISO C 9x
621exp10l NEW: ISO C 9x
622exp2 NEW: ISO C 9x
623exp2f NEW: ISO C 9x
624exp2l NEW: ISO C 9x
625fattach NEW: STREAMS
626fdetach NEW: STREAMS
627fdim NEW: ISO C 9x
628fdimf NEW: ISO C 9x
629fdiml NEW: ISO C 9x
630feclearexcept NEW: ISO C 9x
631fegetenv NEW: ISO C 9x
632fegetexceptflag NEW: ISO C 9x
633fegetround NEW: ISO C 9x
634feholdexcept NEW: ISO C 9x
635feof_locked REMOVED
636feraiseexcept NEW: ISO C 9x
637ferror_locked REMOVED
638fesetenv NEW: ISO C 9x
639fesetexceptflag NEW: ISO C 9x
640fesetround NEW: ISO C 9x
641fetestexcept NEW: ISO C 9x
642feupdateenv NEW: ISO C 9x
643fflush_locked REMOVED
644ffsl NEW: GNU ext.
645ffsll NEW: GNU ext.
646fgetpos64 NEW: LFS
647fgets_unlocked NEW: GNU ext.
648fileno_locked REMOVED
649fma NEW: ISO C 9x
650fmaf NEW: ISO C 9x
651fmal NEW: ISO C 9x
652fmax NEW: ISO C 9x
653fmaxf NEW: ISO C 9x
654fmaxl NEW: ISO C 9x
655fmin NEW: ISO C 9x
656fminf NEW: ISO C 9x
657fminl NEW: ISO C 9x
62595351 658fmtmsg NEW: Unix98
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659fopen64 NEW: LFS
660fputc_locked REMOVED
661fputs_unlocked NEW: GNU ext.
662fread_unlocked NEW: GNU ext.
663freopen64 NEW: LFS
664fseeko NEW: Unix98
665fsetpos64 NEW: LFS
666fstatfs64 NEW: LFS
667fstatvfs NEW: Unix98
668fstatvfs64 NEW: LFS
669ftello NEW: Unix98
670ftello64 NEW: LFS
671ftruncate64 NEW: LFS
672ftw64 NEW: LFS
673fwrite_unlocked NEW: GNU ext.
674gai_strerror NEW: IPv6
675gamma_r REMOVED
676gammaf_r REMOVED
677gammal_r REMOVED
678getchar_locked REMOVED
679getdate NEW: Unix98
680getdate_err NEW: Unix98
681getdate_r NEW: GNU ext.
682getmsg NEW: STREAMS
683getnameinfo NEW: IPv6
e980ca92 684getnetname NEW: Secure RPC
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685getpmsg NEW: STREAMS
686getpt NEW: Unix98 PTY
687getrlimit64 NEW: LFS
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688getutxent NEW: Unix98
689getutxid NEW: Unix98
690getutxline NEW: Unix98
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691glob64 NEW: GNU ext.
692globfree64 NEW: GNU ext.
693gnu_get_libc_release NEW: GNU ext.
694gnu_get_libc_version NEW: GNU ext.
695grantpt NEW: Unix98 PTY
e980ca92 696host2netname NEW: Secure RPC
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697iconv NEW: iconv
698iconv_close NEW: iconv
699iconv_open NEW: iconv
700if_freenameindex NEW: IPv6
701if_indextoname NEW: IPv6
702if_nameindex NEW: IPv6
703if_nametoindex NEW: IPv6
704in6addr_any NEW: IPv6
705in6addr_loopback NEW: IPv6
706inet6_isipv4mapped NEW: IPv6
707isastream NEW: STREAMS
708iswblank NEW: GNU ext.
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709key_decryptsession NEW: Secure RPC
710key_decryptsession_pk NEW: Secure RPC
711key_encryptsession NEW: Secure RPC
712key_encryptsession_pk NEW: Secure RPC
713key_gendes NEW: Secure RPC
714key_get_conv NEW: Secure RPC
715key_secretkey_is_set NEW: Secure RPC
716key_setnet NEW: Secure RPC
717key_setsecret NEW: Secure RPC
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718llrint NEW: ISO C 9x
719llrintf NEW: ISO C 9x
720llrintl NEW: ISO C 9x
721llround NEW: ISO C 9x
722llroundf NEW: ISO C 9x
723llroundl NEW: ISO C 9x
724log2 NEW: ISO C 9x
725log2f NEW: ISO C 9x
726log2l NEW: ISO C 9x
727lrint NEW: ISO C 9x
728lrintf NEW: ISO C 9x
729lrintl NEW: ISO C 9x
730lround NEW: ISO C 9x
731lroundf NEW: ISO C 9x
732lroundl NEW: ISO C 9x
733lseek64 NEW: LFS
734makecontext NEW: Unix98
735mempcpy NEW: GNU ext.
736mmap64 NEW: LFS
737moncontrol REMOVED
738modify_ldt NEW: kernel
739nan NEW: ISO C 9x
740nanf NEW: ISO C 9x
741nanl NEW: ISO C 9x
742nearbyint NEW: ISO C 9x
743nearbyintf NEW: ISO C 9x
744nearbyintl NEW: ISO C 9x
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745netname2host NEW: Secure RPC
746netname2user NEW: Secure RPC
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747nexttoward NEW: ISO C 9x
748nexttowardf NEW: ISO C 9x
749nexttowardl NEW: ISO C 9x
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750nftw NEW: Unix98
751nftw64 NEW: LFS
752open64 NEW: LFS
e980ca92 753passwd2des NEW: Secure RPC
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754pow10 NEW: GNU ext.
755pow10f NEW: GNU ext.
756pow10l NEW: GNU ext.
757pread NEW: Unix98
758pread64 NEW: LFS
759printf_size NEW: GNU ext.
760printf_size_info NEW: GNU ext.
761profil_counter REMOVED
762pthread_mutexattr_getkind_np REPLACED
763pthread_mutexattr_setkind_np REPLACED
764ptsname NEW: Unix98 PTY
765ptsname_r NEW: Unix98 PTY
766putc_locked REMOVED
767putchar_locked REMOVED
768putgrent NEW: GNU ext.
769putmsg NEW: STREAMS
770putpmsg NEW: STREAMS
62595351 771pututxline NEW: Unix98
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772pwrite NEW: Unix98
773pwrite64 NEW: LFS
774readdir64 NEW: LFS
775readdir64_r NEW: LFS
776remquo NEW: ISO C 9x
777remquof NEW: ISO C 9x
778remquol NEW: ISO C 9x
779round NEW: ISO C 9x
780roundf NEW: ISO C 9x
781roundl NEW: ISO C 9x
782rtime NEW: GNU ext.
783scalbln NEW: ISO C 9x
784scalblnf NEW: ISO C 9x
785scalblnl NEW: ISO C 9x
786scandir64 NEW: LFS
787sendfile NEW: kernel
788setcontext NEW: Unix98
789setrlimit64 NEW: LFS
62595351 790setutxent NEW: Unix98
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791sighold NEW: Unix98
792sigignore NEW: Unix98
793sigqueue NEW: POSIX.1b
794sigrelse NEW: Unix98
795sigset NEW: POSIX.1b
796sigtimedwait NEW: POSIX.1b
797sigwaitinfo NEW: POSIX.1b
798sincos NEW: GNU ext.
799sincosf NEW: GNU ext.
800sincosl NEW: GNU ext.
801statfs64 NEW: LFS
802statvfs NEW: Unix98
803statvfs64 NEW: LFS
804strcasestr NEW: GNU ext.
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805strtoimax NEW: ISO C 9x
806strtoumax NEW: ISO C 9x
807strverscmp NEW: GNU ext.
e980ca92 808svcauthdes_stats NEW: Secure RPC
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809svcunix_create NEW: sunrpc etx
810svcunixfd_create NEW: sunrpc ext
811swapcontext NEW: Unix98
812tcgetsid NEW: Unix98 PTY
813tdestroy NEW: GNU ext.
814tgamma NEW: ISO C 9x
815tgammaf NEW: ISO C 9x
816tgammal NEW: ISO C 9x
817tmpfile64 NEW: LFS
818trunc NEW: ISO C 9x
819truncate64 NEW: LFS
820truncf NEW: ISO C 9x
821truncl NEW: ISO C 9x
822umount2 NEW: kernel
823unlockpt NEW: Unix98 PTY
62595351 824updwtmpx NEW: Unix98
e980ca92 825user2netname NEW: Secure RPC
62595351 826utmpxname NEW: Unix98
48244d09 827versionsort NEW: GNU ext.
3ef4002b 828versionsort64 NEW: GNU ext.
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829waitid NEW: Unix98
830wcscasecmp NEW: GNU ext.
831wcsncasecmp NEW: GNU ext.
832wcsnlen NEW: GNU ext.
833wcstoimax NEW: ISO C 9x
834wcstoll NEW: ISO C 9x
835wcstoull NEW: ISO C 9x
836wcstoumax NEW: ISO C 9x
837wcswcs NEW: Unix98
838wordexp NEW: POSIX.2
839wordfree NEW: POSIX.2
840write_profiling REMOVED
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841xdecrypt NEW: Secure RPC
842xdr_authdes_cred NEW: Secure RPC
843xdr_authdes_verf NEW: Secure RPC
844xdr_cryptkeyarg NEW: Secure RPC
845xdr_cryptkeyarg2 NEW: Secure RPC
846xdr_cryptkeyres NEW: Secure RPC
847xdr_getcredres NEW: Secure RPC
848xdr_key_netstarg NEW: Secure RPC
849xdr_key_netstres NEW: Secure RPC
850xdr_keybuf NEW: Secure RPC
851xdr_keystatus NEW: Secure RPC
852xdr_netnamestr NEW: Secure RPC
853xdr_sizeof NEW: Secure RPC
48244d09 854xdr_unixcred NEW: sunrpc ext
e980ca92 855xencrypt NEW: Secure RPC
48244d09 856~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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857\f
858Version 2.0.6
859
860* more bug fixes
861
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862\f
863Version 2.0.5
864
865* more bug fixes
866
867* inet_ntoa is thread-safe
868
869* updwtmp is moved from libutil to libc
870
871* rewrite of cbrt function
872
873* update of timezone data
874\f
875Version 2.0.4
876
877* more bug fixes
878\f
879Version 2.0.3
880
881* more bug fixes
c84142e8 882\f
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883Version 2.0.2
884
885* more bug fixes
886
887* add atoll function
888
889* fix complex problems in Berkeley DB code
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890
891* fix math functions
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892\f
893Version 2.0.1
894
895* fixed lots of header problems (especially Linux/GNU specific)
896
897* dynamic loader preserves all registers
898
899* Roland McGrath provided support for handling of auxiliary objects in
900 the ELF dynamic loader.
901
902* support for parallel builds is improved
903\f
40a4b79f 904Version 2.0
28f540f4 905
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906* GNU extensions are no longer declared by default. To enable them you
907 must define the macro `_GNU_SOURCE' in your program or compile with
908 `-D_GNU_SOURCE'.
909
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910* The library has changed from using GNU ld symbol aliases to using weak
911 symbols where available. The ELF object file format supports weak
912 symbols; GNU ld also supports weak symbols in the a.out format. (There
913 is also now support for other GNU ld extensions in ELF. Use the
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914 `--with-elf' option to configure to indicate you have ELF, and
915 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
28f540f4
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916 of many files which contained only symbol aliases, reducing the size of
917 the source and the compiled library; many other files were renamed to
918 less cryptic names previously occupied by the symbol alias files.
dcf0671d
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919 There is a new header file <elf.h> for programs which operate on
920 files in the ELF format.
49e522bf
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921
922* Converted to Autoconf version 2, so `configure' has more options.
923 Run `configure --help' to see the details.
924
925* The library can now be configured to build profiling, highly-optimized
b25c5d66
RM
926 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
927 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
928 `configure' enable building these extra libraries. The shared library is
929 built by default when using both ELF and GNU ld. When shared libraries
930 are enabled, the new library `-ldl' is available for arbitrary run-time
931 loading of shared objects; its interface is defined in <dlfcn.h>. The
932 new header file <link.h> gives access to the internals of the run-time
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933 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
934 application of same name on other systems and it provides information
935 about dynamically linked binaries.
49e522bf 936
71733723
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937* The C library now provides the run-time support code for profiling
938 executables compiled with `-pg'. Programs can control the profiling code
d3669add
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939 through the interface in <sys/gmon.h>. The `gmon.out' files written by
940 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
941 the support for this file format was contributed by David Mosberger-Tang.
71733723 942
f7eac6eb 943* The math code has been replaced with a math library based on fdlibm from
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944 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
945 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
946 functions. The math functions now reside in a separate library, so
947 programs using them will need to use `-lm' their linking commands.
948
949* John C. Bowman contributed optimized ix87 assembler inline functions.
f7eac6eb 950
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951* Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
952 mechanism similar to that found in Solaris 2. This is now used for the
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953 group, passwd, hosts, networks, services, protocols, rpc, ethers,
954 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
955 file controls what services are used for each individual database. This
956 works by loading shared libraries with names specified in `nsswitch.conf',
957 so service modules can be changed or added at any time without even
958 relinking any program. Currently there are the file, db, and NIS based
959 NSS services available.
5f0e6fc7 960
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961* The new functions `strtoq' and `strtouq' parse integer values from
962 strings, like `strtol' and `strtoul', but they return `long long int' and
963 `unsigned long long int' values, respectively (64-bit quantities).
964
965* The new functions `strtof' and `strtold' parse floating-point values from
966 strings, like `strtod', but they return `float' and `long double' values,
967 respectively (on some machines `double' and `long double' are the same).
968
969* Ulrich Drepper has contributed new implementations of the floating-point
970 printing and reading code used in the `printf' family of functions and
971 `strtod', `strtof', and `strtold'. These new functions are perfectly
972 accurate, and much faster than the old ones.
973
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974* The implementation of the POSIX locale model was completely rewritten by
975 Ulrich Drepper. This includes the new programs `localedef' and `locale'
976 to compile the POSIX locale definition.
977
978* The former dummy implementations of the strcoll and strxfrm function are
979 now replaced by fully functional code contributed by Ulrich Drepper. The
980 collation information comes from the POSIX locale definitions.
981
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982* The new header <langinfo.h> defines an interface for accessing
983 various locale-dependent data (using the locale chosen with `setlocale').
984
f7eac6eb 985* Ulrich Drepper has contributed a new suite of functions for operation on
33a934a3 986 wide-character and multibyte-character strings, in <wchar.h>;
b7407d63 987 and classification and case conversion of wide characters, in <wctype.h>.
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988 These new functions are conforming to the ISO C, Amendement 1 specification.
989
990* There is now a second implementation of the standard I/O library available.
991 It comes from GNU libg++ as was written by Per Bothner, heavily modified
992 by Hongjiu Lu and made thread safe by Ulrich Drepper.
f7eac6eb 993
71733723 994* You can now use positional parameter specifications in format strings
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995 for the `printf' and `scanf' families of functions. For example,
996 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
997 ``Number 6, Mr Jones''. This is mainly useful when providing different
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998 format strings for different languages, whose grammars may dictate
999 different orderings of the values being printed. To support this
49e522bf 1000 feature, the interface for `register_printf_handler' has changed; see
d365fd2c 1001 the header file <printf.h> for details.
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1002
1003* The `printf' and `scanf' families of functions now understand a new
1004 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1005 to group numbers as indicated by the locale; for `scanf' and friends, this
1006 says to accept as valid only a number with all the proper grouping
1007 separators in the right places. In the default "C" locale, numbers are
1008 not grouped; but locales for specific countries will define the usual
1009 conventions (i.e. separate thousands with `,' in the US locale).
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1010
1011* The pgrp functions have been regularized, slightly incompatibly but much
1012 less confusingly. The core functions are now `getpgid' and `setpgid',
1013 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1014 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1015 provided for compatibility. There is no longer an incompatible `getpgrp'
1016 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1017
1018* The new header file <fts.h> and suite of functions simplify programs that
1019 operate on directory trees. This code comes from 4.4 BSD.
1020
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1021* The resolver code has been updated from the BIND 4.9.5-P1 release.
1022 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1023 NSS scheme used in glibc.
28f540f4 1024
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1025* There is a new malloc debugging hook `__memalign_hook'.
1026
1027* There are new typedefs `ushort' for `unsigned short int' and `uint' for
1028 `unsigned int' in <sys/types.h>. These are for compatibility only and
1029 their use is discouraged.
1030
1031* The `-lmcheck' library to enable standard malloc debugging hooks is now
1032 done differently, so that it works even without GNU ld.
787126fe 1033
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1034* New function `euidaccess' checks allowed access to a file like `access',
1035 but using the effective IDs instead of the real IDs.
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1036
1037* The time zone data files have been updated for the latest and greatest
1038 local time conventions of the countries of the world.
1039
1040* The new function `dirfd' extracts the file descriptor used by a DIR stream;
1041 see <dirent.h>.
1042
1043* The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
1044 for formatting floating-point numbers. They are provided only for
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1045 compatibility; new programs should use `sprintf' instead. There are
1046 also equivalent function for the `long double' floating-point type and
1047 all functions also exist in a reentrant form.
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1048
1049* The new auxiliary library `-lutil' from 4.4 BSD contains various
1050 functions for maintaining the login-record files (primarily of use to
1051 system programs such as `login'), and convenient functions for
1052 allocating and initializing a pseudo-terminal (pty) device.
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1053
1054* Ulrich Drepper has contributed new support for System V style
1055 shared memory and IPC on systems that support it.
1056
1057* Ulrich Drepper has contributed several miscellaneous new functions found
1058 in System V: The `hsearch' family of functions provide an effective
1059 implementation of hash tables; `a64l' and `l64a' provide a very simple
1060 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1061 number generator.
1062
1063* Ulrich Drepper has contributed new reentrant counterparts for the
1064 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1065
1066* Ulrich Drepper has contributed new, highly-optimized versions of several
1067 string functions for the i486/Pentium family of processors.
1068
71733723 1069* Ulrich Drepper has updated the Linux-specific code, based largely
c709e372 1070 on work done in Hongjiu Lu's version of GNU libc for Linux.
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1071 The GNU library now supports Linux versions 2.0.10 and later,
1072 using the ELF object file format (i[3456]86-*-linux).
c709e372 1073
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1074* Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1075
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1076* David Mosberger-Tang and Richard Henderson have ported the C library
1077 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
1078 dynamic linking support for ELF/Alpha.
1079
1080* Richard Henderson contributed several Alpha optimized assembler function
1081 for arithmetic and string handling.
d3669add 1082
c709e372 1083* Ulrich Drepper has contributed a new set of message catalog functions to
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1084 support multiple languages using the <libintl.h> interface, for use with
1085 his new package GNU gettext. Translation volunteers have contributed
1086 catalogs of the library's messages in Spanish, German, and Korean.
1087
1088* For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1089 program and the `catgets' function for reading the catalog files it
1090 creates. (The <libintl.h> interface is preferred; we include the
1091 <nl_types.h> interface using `catgets' only for source compatibility with
1092 programs already written to use it.)
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1093
1094* New header file <values.h> gives SVID-compatible names for <limits.h>
1095 constants.
1096
1097* Various new macros, declarations, and small header files for compatibility
1098 with 4.4 BSD.
1099
1100* New function `group_member' is a convenient way to check if a process has
1101 a given effective group ID.
1102
1103* When using GCC 2.7 and later, the socket functions are now declared in a
1104 special way so that passing an argument of type `struct sockaddr_in *',
1105 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
1106 `struct sockaddr *' type, does not generate a type-clash warning.
1107
1108* New function `error' declared in header file <error.h> is a convenient
6d52618b 1109 function for printing error messages and optionally exiting; this is the
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1110 canonical function used in GNU programs. The new functions `err', `warn',
1111 and friends in header file <err.h> are the canonical 4.4 BSD interface for
1112 doing the same thing.
1113
1114* The <glob.h> interface has several new flags from 4.4 BSD that extend the
1115 POSIX.2 `glob' function to do ~ and {...} expansion.
1116
1117* New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
33a934a3 1118 `clearenv' which is used in POSIX.9 is also available.
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1119
1120* New function `getsid' returns session ID number on systems that support it.
1121
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1122* We have incorporated the 4.4 BSD `db' library (version 1.85). New header
1123 files <db.h> and <mpool.h> provide a rich set of functions for several
1124 types of simple databases stored in memory and in files, and <ndbm.h> is
6d52618b 1125 an old `ndbm'-compatible interface using the `db' functions. Link with
999493cb 1126 `-ldb' to get these functions.
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1127
1128* New macro `strdupa' copies a string like `strdup', but uses local stack
1129 space from `alloca' instead of dynamic heap space from `malloc'.
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1130
1131* New function `strnlen' is like `strlen' but searches only a given maximum
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1132 number of characters for the null terminator. `stpncpy', `strndup' and
1133 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1134 function.
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1135
1136* New function `statfs' in header <sys/statfs.h>.
1137
1138* The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1139 provide convenient functions for operating on blocks of null-terminated
1140 strings.
1141
1142* A new suite of functions in <utmp.h> handle all the details of reading
1143 and writing the utmp file.
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1144
1145* An implementation of the NIS/YP(tm) based NSS service was contributed by
1146 Thorsten Kukuk.
1147
1148* Paul Eggert and Ulrich Drepper modified the `strftime' function to be
1149 completely POSIX compliant and also implemented the extended functionality
1150 to handle alternate digit representation and alternate era date formats.
1151
1152* Ulrich Drepper provided an implementation of the `strptime' function
1153 defined in XPG4.2 which transforms a string into a `struct tm' value.
1154
1155* Paul Eggert provided the tzselect shell script as part of the timezone
1156 code. The shell script makes it easy to select the correct timezone
1157 specification.
1158
1159* The implementation of the malloc family of functions is completely replaced
1160 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
1161 The implementation uses the mmap function (if available) and it is
1162 optimized for the use in multi threaded programs.
1163
1164* Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
1165 functions. This new functionality is usable by specifying a special
1166 salt string and it is compatible with implementation on *BSD systems.
1167
1168* Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
1169 `getsubopt' to handle second level command line options, `bsd_signal'
1170 to access BSD style `signal' functionality, the obsolete `regexp' style
1171 expression matcher.
1172
1173* the `lchown' function is available on system which support this
1174 functionality.
1175
1176* The implementation of the shadow password handling function was contributed
1177 by Ulrich Drepper.
1178
1179* David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
1180
1181* POSIX.1g support was added. The <sys/select.h> header is available,
1182 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
1183 implementation of `getaddrinfo'.
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1184\f
1185Version 1.09
1186
1187* For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
1188
1189* New header file <fstab.h> and new functions `getfsspec', `getfsent' and
1190 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
1191
1192* The new function `daemon' from 4.4 BSD is useful for server programs that
1193 want to put themselves in the background.
1194
1195* Joel Sherrill has contributed support for several standalone boards that
1196 run without an operating system.
1197
1198* `printf', `scanf' and friends now accept a `q' type modifier for long
1199 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
1200
1201* All of the code taken from BSD (notably most of the math and networking
1202 routines) has been updated from the BSD 4.4-Lite release.
1203
1204* The resolver code has been updated from the BIND-4.9.3-BETA9 release.
1205
1206* The new functions `getdomainname' and `setdomainname' fetch or change the
1207 YP/NIS domain name. These are system calls which exist on systems which
1208 have YP (aka NIS).
1209
1210* The time zone data files have been updated for the latest international
1211 conventions.
1212
1213* The SunRPC programs `portmap' and `rpcinfo' are now installed in
1214 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
1215\f
1216Version 1.08
1217
1218* The C library now includes support for Sun RPC, from Sun's free
1219 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
1220 are included. (There is still no support for YP.)
1221
1222* Tom Quinn has contributed a port of the C library to SGI machines running
1223 Irix 4 (mips-sgi-irix4).
1224
1225* The new `lockf' function is a simplified interface to the locking
1226 facilities of `fcntl', included for compatibility.
1227
1228* New time functions `timegm', `timelocal', and `dysize' for compatibility.
1229
1230* New header file <sys/timeb.h> and new function `ftime' for compatibility.
1231
1232* New header files <poll.h> and <sys/poll.h> and new function `poll' for
1233 compatibility.
1234
1235* The error message printed by `assert' for a failed assertion now includes
1236 the name of the program (if using GNU ld) and the name of the calling
1237 function (with versions of GCC that support this).
1238
1239* The `psignal' function is now declared in <signal.h>, not <stdio.h>.
1240
1241* The library now includes the <sys/mman.h> header file and memory
1242 management functions `mmap', `munmap', `mprotect', `msync', and
1243 `madvise', on systems that support those facilities.
1244
1245* The interface for `mcheck' has changed slightly: the function called to
1246 abort the program when an allocation inconsistency is detected now takes
1247 an argument that indicates the type of failure. The new function
1248 `mprobe' lets you request a consistency check for a particular block at
1249 any time (checks are normally done only when you call `free' or `realloc'
1250 on a block).
1251
1252* It is now possible to easily cross-compile the C library, building on one
1253 system a library to run on another machine and/or operating system. All
1254 you need to do is set the variable `HOST_CC' in `configparms' to the
1255 native compiler for programs to run on the machine you are building on (a
1256 few generator programs are used on Unix systems); set `CC' to the
1257 cross-compiler.
1258
1259* The new function `fexecve' (only implemented on the GNU system) executes
1260 a program file given a file descriptor already open on the file.
1261\f
1262Version 1.07
1263
1264* Brendan Kehoe has contributed most of a port to the DEC Alpha
1265 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
1266
1267* You can set the variable `libprefix' in `configparms' to specify a prefix
1268 to be prepended to installed library files; this makes it easy to install
1269 the GNU C library to be linked as `-lgnuc' or whatever.
1270
1271* The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
1272 copies a limited number of characters from a string, and returns the
1273 address of the last character written.
1274
1275* You no longer need to check for whether the installed `stddef.h' is
1276 compatible with the GNU C library. configure now checks for you.
1277
1278* You can now define a per-stream `fileno' function to convert the
1279 stream's cookie into an integral file descriptor.
1280
1281* ``malloc (0)'' no longer returns a null pointer. Instead, it
1282 allocates zero bytes of storage, and returns a unique pointer which
1283 you can pass to `realloc' or `free'. The behavior is undefined if
1284 you dereference this pointer.
1285
1286* The C library now runs on Sony NEWS m68k machines running either
1287 NewsOS 3 or NewsOS 4.
1288
1289* The new `syscall' function is a system-dependent primitive function
1290 for invoking system calls. It has the canonical behavior on Unix
1291 systems, including unreliable return values for some calls (such as
1292 `pipe', `fork' and `getppid').
1293
1294* The error code `EWOULDBLOCK' is now obsolete; it is always defined
1295 to `EAGAIN', which is the preferred name. On systems whose kernels
1296 use two distinct codes, the C library now translates EWOULDBLOCK to
1297 EAGAIN in every system call function.
1298\f
1299Version 1.06
1300
1301* The GNU C Library Reference Manual is now distributed with the library.
1302 `make dvi' will produce a DVI file of the printed manual.
1303 `make info' will produce Info files that you can read on line using C-h i
1304 in Emacs or the `info' program.
ea278354 1305 Please send comments on the manual to bug-glibc-manual@gnu.org.
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1306
1307* The library now supports SVR4 on i386s (i386-unknown-sysv4).
1308
1309* Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
1310
1311* Jason Merrill has contributed a port to the Sequent Symmetry running
1312 Dynix version 3 (i386-sequent-dynix).
1313
1314* The library has been ported to i386s running SCO 3.2.4 (also known as SCO
1315 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
1316
1317* New function `memory_warnings' lets you arrange to get warnings when
1318 malloc is running out of memory to allocate, like Emacs gives you.
1319
1320* The C library now contains the relocating allocator used in Emacs 19 for
1321 its editing buffers. This allocator (ralloc) minimizes allocation
1322 overhead and fragmentation by moving allocated regions around whenever it
1323 needs to. You always refer to a ralloc'd region with a "handle" (a
1324 pointer to a pointer--an object of type `void **').
1325
1326* There is a new `printf' format: `%m' gives you the string corresponding
1327 to the error code in `errno'.
1328
1329* In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
1330 or `%[' conversion, but instead of filling in a fixed-sized buffer you
1331 pass, the `a' modifier says to fill in a `char **' you pass with a
1332 malloc'd string.
1333
1334* The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
1335 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
1336 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
1337
1338* `mkstemp' is a traditional Unix function to atomically create and open a
1339 uniquely-named temporary file.
1340\f
1341Version 1.05
1342
1343* The standard location for the file that says what the local timezone is
1344 has changed again. It is now `/usr/local/etc/localtime' (or more
1345 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
1346
1347* The distribution no longer contains any files with names longer than 14
1348 characters.
1349
1350* `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
1351 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
1352
1353* New functions `ttyslot' and `syslog' from 4.4 BSD.
1354\f
1355Version 1.04
1356
1357* The configuration process has changed quite a bit. The `configure'
1358 script is now used just like the configuration scripts for other GNU
1359 packages. The `sysdeps' directory hierarchy is much rearranged.
1360 The file `INSTALL' explains the new scheme in detail.
1361
1362* The header files no longer need to be processed into ANSI C and
1363 traditional C versions. There is just one set of files to install, and
1364 it will work with ANSI or old C compilers (including `gcc -traditional').
1365
1366* Brendan Kehoe and Ian Lance Taylor have ported the library to the
1367 MIPS DECStation running Ultrix 4.
1368
1369* The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
1370 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
1371 made itself into a shared library.
1372
1373* Yet further improved support for the i386, running 4.3 BSD-like systems
1374 (such as Mach 3 with the Unix single-server), or System V.
1375
1376* New function `strncasecmp' to do case-insensitive string comparison
1377 with limited length.
1378
1379* New function `strsep' is a reentrant alternative to `strtok'.
1380
1381* New functions `scandir' and `alphasort' for searching directories.
1382
1383* New function `setenv' is a better interface to `putenv'.
1384
1385* Ian Lance Taylor has contributed an implementation of the SVID `ftw'
1386 function for traversing a directory tree.
1387
1388* The GNU obstack package is now also part of the C library.
1389 The new function `open_obstack_stream' creates a stdio stream that
1390 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
1391 formatted output directly to an obstack.
1392
1393* Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
1394 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
1395
1396* `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
1397
1398* The new functions `strfry' and `memfrob' do mysterious and wonderful
1399 things to your strings.
1400
1401* There are some new test programs: test-fseek, testmb, and testrand.
1402
1403* Some work has been done to begin porting the library to 4.4 BSD and Linux.
1404 These ports are not finished, but are a good starting place for really
1405 supporting those systems.
1406
1407* `/etc/localtime' is now the standard location for the file that says what
1408 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
1409 This follows the general principle that `/etc' is the place for all local
1410 configuration files.
1411
1412* The C library header files now use `extern "C"' when used by the C++
1413 compiler, so the C library should now work with C++ code.
1414
1415* The header file <bstring.h> is gone. <string.h> now declares bcopy,
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1416 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
1417 in <strings.h>.)
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1418
1419* Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
1420 function which uses the `merge sort' algorithm, and is said to be
1421 significantly faster than the old GNU `qsort' function. Merge sort is
1422 now the standard `qsort' function. The new algorithm can require a lot
1423 of temporary storage; so, the old sorting function is called when the
1424 required storage is not available.
1425
1426* The C library now includes Michael Glad's Ultra Fast Crypt, which
1427 provides the Unix `crypt' function, plus some other entry points.
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1428
1429* The code and header files taken from 4.4 BSD have been updated with the
1430 latest files released from Berkeley.
1431\f
1432----------------------------------------------------------------------
1433Copyright information:
1434
f87277f2 1435Copyright (C) 1992-1999,2000,2001,2002 Free Software Foundation, Inc.
28f540f4
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1436
1437 Permission is granted to anyone to make or distribute verbatim copies
1438 of this document as received, in any medium, provided that the
1439 copyright notice and this permission notice are preserved,
1440 thus giving the recipient permission to redistribute in turn.
1441
1442 Permission is granted to distribute modified versions
1443 of this document, or of portions of it,
1444 under the above conditions, provided also that they
1445 carry prominent notices stating who last changed them.
1446\f
1447Local variables:
1448version-control: never
557a9213 1449End:
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