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1 GNU C Library NEWS -- history of user-visible changes. 2002-8-29
2 Copyright (C) 1992-2001, 2002 Free Software Foundation, Inc.
3 See the end for copying conditions.
5 Please send GNU C library bug reports using the `glibcbug' script to
6 <bugs@gnu.org>. Please send questions and suggestions to <bug-glibc@gnu.org>.
7 \f
8 Version 2.3
10 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
11 charsets.
13 * iconv (the program and the interface) now accepts empty names (excluding
14 options like //TRANSLIT) to mean "use charset of current locale".
16 * localedef can now transliterate characters in strings which are not in
17 the provided charmap. The information from the input locale is used.
19 * Prelinking support was added for ELF targets. This requires additional
20 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
22 * Read-only stdio streams now use mmap to speed up operation by eliminating
23 copying and buffer underflows. To use add 'm' to the mode string of
24 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
26 * The malloc functions were completely rewritten by Wolfram Gloger based
27 on Doug Lea's malloc-2.7.0.c.
29 * Isamu Hasegawa contributed a completely new and POSIX-conformant
30 implementation of regex.
32 * Bruno Haible upgraded the iconv and locale implementation to support
33 Unicode 3.2.
35 * Contents of the LC_* and LANG environment variables in the CEN style are
36 not recognized anymore. It never was used. Change by Ulrich Drepper.
38 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
39 thread-local storage (TLS) ABI on some platforms.
40 Changes by Ulrich Drepper. SH support by Kaz Kojima.
42 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
43 and EUC-JISX0213.
45 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
46 BSD-compatible interface for getting all network interface addresses.
47 Implementation for IPv4 by Roland McGrath.
49 * Loading of locale data is faster due to the introduction of a locale
50 archive. Implemented by Roland McGrath and Ulrich Drepper.
52 * Startup times are significantly reduced by not using exported functions
53 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
54 and Ulrich Drepper.
56 * Steven Munroe contributed a port to PowerPC64/Linux.
57 \f
58 Version 2.2.6
60 * The Hurd now uses the GNU libio implementation of stdio rather than the
61 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
63 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
64 with the same behavior as the Linux system call of the same name.
65 \f
66 Version 2.2.5
68 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
69 128-bit long double format.
71 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
72 IBM1161, and IBM1162 charsets.
74 * Andreas Jaeger contributed a port to x86-64/Linux.
76 * Peter Bruin contributed a port to PowerPC/Hurd.
78 * libc functions using I/O streams now can handle wide-oriented streams
79 as well.
81 * optimizations in the dynamic linker. Binaries created by recent binutils
82 versions start up quicker due to reduced time spent on relocations.
84 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
85 \f
86 Version 2.2.4
88 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
89 asinh, atanh, j0 for the 128-bit long double format.
91 * Bruno Haible updated all the code handling Unicode in some form to
92 support Unicode 3.1.
94 * Speed of regex for single-byte locales is back to previous levels.
95 Patch by Isamu Hasegawa.
97 * Alpha, SPARC, and IA-64 now also using floating stacks.
99 * Startup time of internationalized applications greatly improved through
100 iconv cache. Use iconvconfig to generate the cache file.
101 Contributed by Ulrich Drepper.
103 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
104 severe performance problems. Patch by David Mosberger.
106 * The Hurd port got a lot more functionality like AIO, various stdio
107 extensions, etc. Mainly done by Roland McGrath.
109 * mtrace can now lookup symbols in shared libraries.
110 \f
111 Version 2.2.3
113 * Intel's IA-64 math library is largely integrated. It provides fast and
114 accurate implementatations for most basic and standard math functions
115 in float, double, and long double format.
117 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
118 and asin for the 96-bit long double format and asin, log, tan for the
119 128-bit long double format.
121 * The beginning of a last-bit accurate math library by IBM Haifa were added.
122 The basic double functions exist today. Contributed by Abraham Ziv
123 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
124 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
126 * An asynchronous name lookup library was added. The interface is designed
127 after POSIX AIO. The proposal was circulated beforehand to get comments.
128 No negative ones came in. Implemented by Ulrich Drepper.
130 * Port to S390/64bit contributed by Martin Schwidefsky
131 <schwidefsky@de.ibm.com>.
133 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
134 of functions for Linux/IA-64.
136 * The RPC code is now thread safe. Threads can now use the same service
137 of different services at the same time. Patch by Eric Norum
138 <eric.norum@usask.ca> with some help by Ulrich Drepper.
140 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
141 family of functions for Linux/S390.
143 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
144 of functions for Linux/x86.
146 * Port to Linux/CRIS contributed by Axis Communications.
147 \f
148 Version 2.2.2
150 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
151 we can now check for namespace violations and missing declarations. The
152 result is that almost all headers are now Unix-compliant (as defined in
153 the upcoming XPG6). The negative side is that some programs might need
154 corrections, too, if they depend on the incorrect form of the headers in
155 previous versions which defined too many symbols and included too many
156 other headers.
158 * regex now handles multibyte character sets correctly.
159 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
161 * iconv (the program) does now conform to the upcoming XPG6 and handles
162 charmaps. Instead of the charset names the path of charmaps can be
163 provided and the conversion happens based on this data.
164 Contributed by Ulrich Drepper.
166 * The locale program now provides detailed information about the installed
167 locales. While
169 locale -a
171 only lists the names of the supported locales
173 locale -a --verbose
175 provides details such as country, language, and codeset name.
176 Contributed by Ulrich Drepper.
177 \f
178 Version 2.2.1
180 * The gencat program now parses the input file according to the charset
181 selected by the LC_CTYPE category. This is important for stateful
182 character sets. To make generating catalogs easier there is a way
183 to overwrite the charset selected by the locale: before the first
184 message or $ quote line the catalog can contain a line like
186 $ codeset=ISO-8859-2
188 to select the charset (ISO-8859-2 in this case).
190 Implemented by Shinya Hanataka and Ulrich Drepper.
192 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
193 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
194 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
196 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
197 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
199 * The LANGUAGE environment variable is now ignored unless the locale is
200 changed from the default "C" locale.
202 * The usual bug fixes.
203 \f
204 Version 2.2
206 * Greg McGary added runtime support for bounds checking using gcc's
207 new -fbounded-pointers option. ix86 target is complete. PowerPC
208 is in progress.
210 * Thorsten Kukuk added secure mode support to nscd.
212 * The Berkeley db libraries have been removed.
214 Related, the nss_db module is now in a separate package since it
215 obviously requires a database library being available.
217 * Wide character I/O streams implemented by Ulrich Drepper.
219 * Functions from the extended socket API added by Ulrich Drepper.
221 * Functions feenableexcept and fedisableexcept to control the
222 behaviour of individual exceptions have been added by Andreas Jaeger.
224 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
226 * The resolver code has been updated from bind 8.2.3-T5B which supports
227 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
228 and Mark Kettenis.
230 This change could in some situations effect backward compatibility. Since
231 now `_res' is a thread-local instead of a global variable, modifying it
232 in one thread does not have any effect in other threads.
234 The resolver library was also extended to allow IPv6 as the transport
235 protocol for the requests. This work was done by Stig Venaas.
237 * Compatibility code for K&R C compilers has been removed from the
238 header files. A ISO C compiler is needed to use the library
239 (conforming to either C89 or C99 standard).
241 * Complete rewrite of the localedef program to support multibyte character
242 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
243 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
244 Implemented by Ulrich Drepper.
246 Bruno Haible significantly improved the generation and use of the data
247 structures for the wide character tables.
249 * Plural handling in gettext implemented by Ulrich Drepper.
251 * The utmp daemon has been removed.
253 * The port to MIPS-Linux has been finished by Andreas Jaeger.
255 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
256 and Yutaka Niibe.
258 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
260 * POSIX barriers implemented by Kaz Kylheku.
262 * POSIX spawn function family implemented by Ulrich Drepper.
264 * POSIX spinlocks are now available.
266 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
268 * the configure option --enable-kernel=X.Y.Z allows to strip out
269 compatibility for kernel versions before X.Y.Z. This is currently only
270 implemented for Linux.
272 * the sockaddr_in6 structure changed. The IPv6 working group added a new
273 field sin6_scope_id. This means that all programs using IPv6 should be
274 recompiled. Don't expect binary compatibility with previous glibc
275 versions.
277 * various conversion modules for IBM character sets contributed by
278 Masahide Washizawa.
280 * IA-64 port by Jes Sorensen and HJ Lu.
282 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
283 Compiling the GNU C Library for Linux/ia64
284 ******************************************
286 Please refer to the file INSTALL in the same directory as you found
287 this file for general information about configuring and compiling
288 glibc.
290 For general inquiries about glibc under Linux/ia64 please use the
291 following mailing list linux-ia64@linuxia64.org or one of the relevant
292 glibc mailing lists.
294 Recommended Tools for Compilation
295 =================================
297 In order for glibc-2.2 to build correctly on the ia64 you need at
298 least the following versions of the GNU tools (the :
300 * The Cygnus toolchain snapshot for the ia64 as of August 4
301 including the provided set of patches. It is however recommend
302 you use the October 24 toolchain snapshot or a more recent version.
304 OR alternatively you can try the following (the Cygnus toolchain is
305 the recommended solution):
307 * GCC and binutils, GAS and GNU LD out of CVS from
308 sources.redhat.com as of August 28, 2000 or later. The CVS tree
309 may require special patches to work properly on the ia64.
311 Configuring and compiling GNU Libc for Linux/ia64
312 =================================================
314 The library requires Linux kernel version 2.4.0-test4-000728 or
315 later to funtion properly. Besides that it support for debug libraries
316 is currently untested. Hence the following options
317 are required for configuring the library:
319 --disable-debug --enable-kernel=2.4.0
321 It is also important that you make sure the library picks up the
322 appropriate kernel header files, if you do not have recent enough
323 kernel headers in /usr/src/linux/include, you should use the
324 --with-headers=<path> option to specify the location.
326 As an example I personally use the following options to configure
327 the library:
329 --disable-debug
330 --disable-cvs
331 --enable-kernel=2.4.0
332 --host=ia64-linux
333 --enable-add-ons=yes
334 --prefix=/usr
335 --with-headers=/home/jes/linux/include
338 Good luck
340 Jes Sorensen <jes@linuxcare.com>,
341 November 14th, 2000
342 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
343 \f
344 Version 2.1.3
346 * bug fixes
348 \f
349 Version 2.1.2
351 * bug fixes
353 \f
354 Version 2.1.1
356 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
358 * New xdr functions are added; some rpc functions are now 64bit clean.
360 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
362 * Fixed known incompatibilities with glibc 2.0.
364 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
366 * Optimized a number of functions (especially the ELF dynamic loader).
368 * Update timezone data files.
370 * lots of charmaps corrections
372 * some new locale definitions and charmaps
374 \f
375 Version 2.1
377 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
378 conform to POSIX member type requirements. Symbol versions have been
379 adjusted as needed within the library, and for direct use by applications,
380 but there is potential for problems if third-party libraries use
381 struct timeval as part of their interface. This does not present
382 a problem for X and other "essential" system libraries.
384 * An additional locale model to support C++ Standard Library locale
385 model and probably more was implemented by Ulrich Drepper.
387 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
388 symbol level.
390 * Miles Bader provided the `argp' function family to support hierachical
391 command line argument parsing, layered on top of getopt.
393 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
395 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
396 numbers.
398 * scanf recognizes the %a and %A format for scanning floating point numbers.
400 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
401 information and interfaces for the available integer types.
403 * about 130 new math functions were added to implement the ISO C9x math
404 library.
406 * the new header <complex.h> contains definitions of the complex math
407 functions from ISO C 9X.
409 * the new header <tgmath.h> defines generic macros to use complex or
410 real valued functions.
412 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
414 * Andreas Jaeger provided a test suite for the math library.
416 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
418 * Ulrich Drepper added character set conversion functions (iconv).
420 * Optimized string functions have been added.
422 * The localedata addon is now part of glibc.
424 * An implementation of profiling shared libraries was added by Ulrich Drepper.
426 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
427 daemon for NSS (nscd).
429 Missing a better place here are some numbers on improvements. Under
430 Linux 2.1.125 un-tar-ing the kernel sources takes
432 user system wall
434 using local files 12.19s 6.88s 22.91s
436 using NIS 13.92s 8.91s 26.34s
438 using NIS & nscd 10.37s 7.34s 25.30s
440 using NIS+ 27.57s 30.37s 640.46s
442 using NIS+ & nscd 10.25s 7.83s 26.51s
444 using NIS & old nscd [1] 13.83s 8.32s 29.60s
446 Keep in mind that non-namelookup related operations dominate above times.
447 It was just a common complain that using NIS+ unpacking the kernel is
448 horribly slow.
450 [1] The old nscd implementation is not available anymore since it was
451 distributed with glibc up to version 2.0.98 and thus is now replaced.
453 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
455 * Mark Kettenis provided a Hesiod NSS module.
457 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
458 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
460 * rcmd can now handle netgroups (Dick Streefland).
462 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
463 Bambrough.
465 * Support for the IPv6 protocol has been added to the socket API, as per the
466 latest draft standards.
468 * Support for Linux 2.2 has been added.
470 * Interface changes relative to the latest 2.0.x release:
471 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
472 addseverity NEW: Unix98
473 alphasort64 NEW: LFS
474 argp_err_exit_status NEW: argp, GNU ext
475 argp_error NEW: argp, GNU ext
476 argp_failure NEW: argp, GNU ext
477 argp_help NEW: argp, GNU ext
478 argp_parse NEW: argp, GNU ext
479 argp_program_bug_address NEW: argp, GNU ext
480 argp_program_version NEW: argp, GNU ext
481 argp_program_version_hook NEW: argp, GNU ext
482 argp_state_help NEW: argp, GNU ext
483 argp_usage NEW: argp, GNU ext
484 authdes_create NEW: Secure RPC
485 authdes_getucred NEW: Secure RPC
486 authdes_pk_create NEW: Secure RPC
487 backtrace NEW: GNU ext.
488 backtrace_symbols NEW: GNU ext.
489 backtrace_symbols_fd NEW: GNU ext.
490 cacos NEW: ISO C 9x
491 cacosf NEW: ISO C 9x
492 cacosh NEW: ISO C 9x
493 cacoshf NEW: ISO C 9x
494 cacoshl NEW: ISO C 9x
495 cacosl NEW: ISO C 9x
496 capget NEW: kernel
497 capset NEW: kernel
498 carg NEW: ISO C 9x
499 cargf NEW: ISO C 9x
500 cargl NEW: ISO C 9x
501 casin NEW: ISO C 9x
502 casinf NEW: ISO C 9x
503 casinh NEW: ISO C 9x
504 casinhf NEW: ISO C 9x
505 casinhl NEW: ISO C 9x
506 casinl NEW: ISO C 9x
507 catan NEW: ISO C 9x
508 catanf NEW: ISO C 9x
509 catanh NEW: ISO C 9x
510 catanhf NEW: ISO C 9x
511 catanhl NEW: ISO C 9x
512 catanl NEW: ISO C 9x
513 cbc_crypt NEW: Secure RPC
514 ccos NEW: ISO C 9x
515 ccosf NEW: ISO C 9x
516 ccosh NEW: ISO C 9x
517 ccoshf NEW: ISO C 9x
518 ccoshl NEW: ISO C 9x
519 ccosl NEW: ISO C 9x
520 cexp NEW: ISO C 9x
521 cexpf NEW: ISO C 9x
522 cexpl NEW: ISO C 9x
523 cimag NEW: ISO C 9x
524 cimagf NEW: ISO C 9x
525 cimagl NEW: ISO C 9x
526 clearerr_locked REMOVED
527 clntunix_create NEW: sunrpc ext
528 clog NEW: ISO C 9x
529 clog10 NEW: ISO C 9x
530 clog10f NEW: ISO C 9x
531 clog10l NEW: ISO C 9x
532 clogf NEW: ISO C 9x
533 clogl NEW: ISO C 9x
534 conj NEW: ISO C 9x
535 conjf NEW: ISO C 9x
536 conjl NEW: ISO C 9x
537 cpow NEW: ISO C 9x
538 cpowf NEW: ISO C 9x
539 cpowl NEW: ISO C 9x
540 cproj NEW: ISO C 9x
541 cprojf NEW: ISO C 9x
542 cprojl NEW: ISO C 9x
543 creal NEW: ISO C 9x
544 crealf NEW: ISO C 9x
545 creall NEW: ISO C 9x
546 creat64 NEW: LFS
547 csin NEW: ISO C 9x
548 csinf NEW: ISO C 9x
549 csinh NEW: ISO C 9x
550 csinhf NEW: ISO C 9x
551 csinhl NEW: ISO C 9x
552 csinl NEW: ISO C 9x
553 csqrt NEW: ISO C 9x
554 csqrtf NEW: ISO C 9x
555 csqrtl NEW: ISO C 9x
556 ctan NEW: ISO C 9x
557 ctanf NEW: ISO C 9x
558 ctanh NEW: ISO C 9x
559 ctanhf NEW: ISO C 9x
560 ctanhl NEW: ISO C 9x
561 ctanl NEW: ISO C 9x
562 des_setparity NEW: Secure RPC
563 ecb_crypt NEW: Secure RPC
564 endutxent NEW: Unix98
565 exp10 NEW: ISO C 9x
566 exp10f NEW: ISO C 9x
567 exp10l NEW: ISO C 9x
568 exp2 NEW: ISO C 9x
569 exp2f NEW: ISO C 9x
570 exp2l NEW: ISO C 9x
571 fattach NEW: STREAMS
572 fdetach NEW: STREAMS
573 fdim NEW: ISO C 9x
574 fdimf NEW: ISO C 9x
575 fdiml NEW: ISO C 9x
576 feclearexcept NEW: ISO C 9x
577 fegetenv NEW: ISO C 9x
578 fegetexceptflag NEW: ISO C 9x
579 fegetround NEW: ISO C 9x
580 feholdexcept NEW: ISO C 9x
581 feof_locked REMOVED
582 feraiseexcept NEW: ISO C 9x
583 ferror_locked REMOVED
584 fesetenv NEW: ISO C 9x
585 fesetexceptflag NEW: ISO C 9x
586 fesetround NEW: ISO C 9x
587 fetestexcept NEW: ISO C 9x
588 feupdateenv NEW: ISO C 9x
589 fflush_locked REMOVED
590 ffsl NEW: GNU ext.
591 ffsll NEW: GNU ext.
592 fgetpos64 NEW: LFS
593 fgets_unlocked NEW: GNU ext.
594 fileno_locked REMOVED
595 fma NEW: ISO C 9x
596 fmaf NEW: ISO C 9x
597 fmal NEW: ISO C 9x
598 fmax NEW: ISO C 9x
599 fmaxf NEW: ISO C 9x
600 fmaxl NEW: ISO C 9x
601 fmin NEW: ISO C 9x
602 fminf NEW: ISO C 9x
603 fminl NEW: ISO C 9x
604 fmtmsg NEW: Unix98
605 fopen64 NEW: LFS
606 fputc_locked REMOVED
607 fputs_unlocked NEW: GNU ext.
608 fread_unlocked NEW: GNU ext.
609 freopen64 NEW: LFS
610 fseeko NEW: Unix98
611 fsetpos64 NEW: LFS
612 fstatfs64 NEW: LFS
613 fstatvfs NEW: Unix98
614 fstatvfs64 NEW: LFS
615 ftello NEW: Unix98
616 ftello64 NEW: LFS
617 ftruncate64 NEW: LFS
618 ftw64 NEW: LFS
619 fwrite_unlocked NEW: GNU ext.
620 gai_strerror NEW: IPv6
621 gamma_r REMOVED
622 gammaf_r REMOVED
623 gammal_r REMOVED
624 getchar_locked REMOVED
625 getdate NEW: Unix98
626 getdate_err NEW: Unix98
627 getdate_r NEW: GNU ext.
628 getmsg NEW: STREAMS
629 getnameinfo NEW: IPv6
630 getnetname NEW: Secure RPC
631 getpmsg NEW: STREAMS
632 getpt NEW: Unix98 PTY
633 getrlimit64 NEW: LFS
634 getutxent NEW: Unix98
635 getutxid NEW: Unix98
636 getutxline NEW: Unix98
637 glob64 NEW: GNU ext.
638 globfree64 NEW: GNU ext.
639 gnu_get_libc_release NEW: GNU ext.
640 gnu_get_libc_version NEW: GNU ext.
641 grantpt NEW: Unix98 PTY
642 host2netname NEW: Secure RPC
643 iconv NEW: iconv
644 iconv_close NEW: iconv
645 iconv_open NEW: iconv
646 if_freenameindex NEW: IPv6
647 if_indextoname NEW: IPv6
648 if_nameindex NEW: IPv6
649 if_nametoindex NEW: IPv6
650 in6addr_any NEW: IPv6
651 in6addr_loopback NEW: IPv6
652 inet6_isipv4mapped NEW: IPv6
653 isastream NEW: STREAMS
654 iswblank NEW: GNU ext.
655 key_decryptsession NEW: Secure RPC
656 key_decryptsession_pk NEW: Secure RPC
657 key_encryptsession NEW: Secure RPC
658 key_encryptsession_pk NEW: Secure RPC
659 key_gendes NEW: Secure RPC
660 key_get_conv NEW: Secure RPC
661 key_secretkey_is_set NEW: Secure RPC
662 key_setnet NEW: Secure RPC
663 key_setsecret NEW: Secure RPC
664 llrint NEW: ISO C 9x
665 llrintf NEW: ISO C 9x
666 llrintl NEW: ISO C 9x
667 llround NEW: ISO C 9x
668 llroundf NEW: ISO C 9x
669 llroundl NEW: ISO C 9x
670 log2 NEW: ISO C 9x
671 log2f NEW: ISO C 9x
672 log2l NEW: ISO C 9x
673 lrint NEW: ISO C 9x
674 lrintf NEW: ISO C 9x
675 lrintl NEW: ISO C 9x
676 lround NEW: ISO C 9x
677 lroundf NEW: ISO C 9x
678 lroundl NEW: ISO C 9x
679 lseek64 NEW: LFS
680 makecontext NEW: Unix98
681 mempcpy NEW: GNU ext.
682 mmap64 NEW: LFS
683 moncontrol REMOVED
684 modify_ldt NEW: kernel
685 nan NEW: ISO C 9x
686 nanf NEW: ISO C 9x
687 nanl NEW: ISO C 9x
688 nearbyint NEW: ISO C 9x
689 nearbyintf NEW: ISO C 9x
690 nearbyintl NEW: ISO C 9x
691 netname2host NEW: Secure RPC
692 netname2user NEW: Secure RPC
693 nexttoward NEW: ISO C 9x
694 nexttowardf NEW: ISO C 9x
695 nexttowardl NEW: ISO C 9x
696 nftw NEW: Unix98
697 nftw64 NEW: LFS
698 open64 NEW: LFS
699 passwd2des NEW: Secure RPC
700 pow10 NEW: GNU ext.
701 pow10f NEW: GNU ext.
702 pow10l NEW: GNU ext.
703 pread NEW: Unix98
704 pread64 NEW: LFS
705 printf_size NEW: GNU ext.
706 printf_size_info NEW: GNU ext.
707 profil_counter REMOVED
708 pthread_mutexattr_getkind_np REPLACED
709 pthread_mutexattr_setkind_np REPLACED
710 ptsname NEW: Unix98 PTY
711 ptsname_r NEW: Unix98 PTY
712 putc_locked REMOVED
713 putchar_locked REMOVED
714 putgrent NEW: GNU ext.
715 putmsg NEW: STREAMS
716 putpmsg NEW: STREAMS
717 pututxline NEW: Unix98
718 pwrite NEW: Unix98
719 pwrite64 NEW: LFS
720 readdir64 NEW: LFS
721 readdir64_r NEW: LFS
722 remquo NEW: ISO C 9x
723 remquof NEW: ISO C 9x
724 remquol NEW: ISO C 9x
725 round NEW: ISO C 9x
726 roundf NEW: ISO C 9x
727 roundl NEW: ISO C 9x
728 rtime NEW: GNU ext.
729 scalbln NEW: ISO C 9x
730 scalblnf NEW: ISO C 9x
731 scalblnl NEW: ISO C 9x
732 scandir64 NEW: LFS
733 sendfile NEW: kernel
734 setcontext NEW: Unix98
735 setrlimit64 NEW: LFS
736 setutxent NEW: Unix98
737 sighold NEW: Unix98
738 sigignore NEW: Unix98
739 sigqueue NEW: POSIX.1b
740 sigrelse NEW: Unix98
741 sigset NEW: POSIX.1b
742 sigtimedwait NEW: POSIX.1b
743 sigwaitinfo NEW: POSIX.1b
744 sincos NEW: GNU ext.
745 sincosf NEW: GNU ext.
746 sincosl NEW: GNU ext.
747 statfs64 NEW: LFS
748 statvfs NEW: Unix98
749 statvfs64 NEW: LFS
750 strcasestr NEW: GNU ext.
751 strtoimax NEW: ISO C 9x
752 strtoumax NEW: ISO C 9x
753 strverscmp NEW: GNU ext.
754 svcauthdes_stats NEW: Secure RPC
755 svcunix_create NEW: sunrpc etx
756 svcunixfd_create NEW: sunrpc ext
757 swapcontext NEW: Unix98
758 tcgetsid NEW: Unix98 PTY
759 tdestroy NEW: GNU ext.
760 tgamma NEW: ISO C 9x
761 tgammaf NEW: ISO C 9x
762 tgammal NEW: ISO C 9x
763 tmpfile64 NEW: LFS
764 trunc NEW: ISO C 9x
765 truncate64 NEW: LFS
766 truncf NEW: ISO C 9x
767 truncl NEW: ISO C 9x
768 umount2 NEW: kernel
769 unlockpt NEW: Unix98 PTY
770 updwtmpx NEW: Unix98
771 user2netname NEW: Secure RPC
772 utmpxname NEW: Unix98
773 versionsort NEW: GNU ext.
774 versionsort64 NEW: GNU ext.
775 waitid NEW: Unix98
776 wcscasecmp NEW: GNU ext.
777 wcsncasecmp NEW: GNU ext.
778 wcsnlen NEW: GNU ext.
779 wcstoimax NEW: ISO C 9x
780 wcstoll NEW: ISO C 9x
781 wcstoull NEW: ISO C 9x
782 wcstoumax NEW: ISO C 9x
783 wcswcs NEW: Unix98
784 wordexp NEW: POSIX.2
785 wordfree NEW: POSIX.2
786 write_profiling REMOVED
787 xdecrypt NEW: Secure RPC
788 xdr_authdes_cred NEW: Secure RPC
789 xdr_authdes_verf NEW: Secure RPC
790 xdr_cryptkeyarg NEW: Secure RPC
791 xdr_cryptkeyarg2 NEW: Secure RPC
792 xdr_cryptkeyres NEW: Secure RPC
793 xdr_getcredres NEW: Secure RPC
794 xdr_key_netstarg NEW: Secure RPC
795 xdr_key_netstres NEW: Secure RPC
796 xdr_keybuf NEW: Secure RPC
797 xdr_keystatus NEW: Secure RPC
798 xdr_netnamestr NEW: Secure RPC
799 xdr_sizeof NEW: Secure RPC
800 xdr_unixcred NEW: sunrpc ext
801 xencrypt NEW: Secure RPC
802 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
803 \f
804 Version 2.0.6
806 * more bug fixes
808 \f
809 Version 2.0.5
811 * more bug fixes
813 * inet_ntoa is thread-safe
815 * updwtmp is moved from libutil to libc
817 * rewrite of cbrt function
819 * update of timezone data
820 \f
821 Version 2.0.4
823 * more bug fixes
824 \f
825 Version 2.0.3
827 * more bug fixes
828 \f
829 Version 2.0.2
831 * more bug fixes
833 * add atoll function
835 * fix complex problems in Berkeley DB code
837 * fix math functions
838 \f
839 Version 2.0.1
841 * fixed lots of header problems (especially Linux/GNU specific)
843 * dynamic loader preserves all registers
845 * Roland McGrath provided support for handling of auxiliary objects in
846 the ELF dynamic loader.
848 * support for parallel builds is improved
849 \f
850 Version 2.0
852 * GNU extensions are no longer declared by default. To enable them you
853 must define the macro `_GNU_SOURCE' in your program or compile with
854 `-D_GNU_SOURCE'.
856 * The library has changed from using GNU ld symbol aliases to using weak
857 symbols where available. The ELF object file format supports weak
858 symbols; GNU ld also supports weak symbols in the a.out format. (There
859 is also now support for other GNU ld extensions in ELF. Use the
860 `--with-elf' option to configure to indicate you have ELF, and
861 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
862 of many files which contained only symbol aliases, reducing the size of
863 the source and the compiled library; many other files were renamed to
864 less cryptic names previously occupied by the symbol alias files.
865 There is a new header file <elf.h> for programs which operate on
866 files in the ELF format.
868 * Converted to Autoconf version 2, so `configure' has more options.
869 Run `configure --help' to see the details.
871 * The library can now be configured to build profiling, highly-optimized
872 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
873 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
874 `configure' enable building these extra libraries. The shared library is
875 built by default when using both ELF and GNU ld. When shared libraries
876 are enabled, the new library `-ldl' is available for arbitrary run-time
877 loading of shared objects; its interface is defined in <dlfcn.h>. The
878 new header file <link.h> gives access to the internals of the run-time
879 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
880 application of same name on other systems and it provides information
881 about dynamically linked binaries.
883 * The C library now provides the run-time support code for profiling
884 executables compiled with `-pg'. Programs can control the profiling code
885 through the interface in <sys/gmon.h>. The `gmon.out' files written by
886 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
887 the support for this file format was contributed by David Mosberger-Tang.
889 * The math code has been replaced with a math library based on fdlibm from
890 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
891 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
892 functions. The math functions now reside in a separate library, so
893 programs using them will need to use `-lm' their linking commands.
895 * John C. Bowman contributed optimized ix87 assembler inline functions.
897 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
898 mechanism similar to that found in Solaris 2. This is now used for the
899 group, passwd, hosts, networks, services, protocols, rpc, ethers,
900 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
901 file controls what services are used for each individual database. This
902 works by loading shared libraries with names specified in `nsswitch.conf',
903 so service modules can be changed or added at any time without even
904 relinking any program. Currently there are the file, db, and NIS based
905 NSS services available.
907 * The new functions `strtoq' and `strtouq' parse integer values from
908 strings, like `strtol' and `strtoul', but they return `long long int' and
909 `unsigned long long int' values, respectively (64-bit quantities).
911 * The new functions `strtof' and `strtold' parse floating-point values from
912 strings, like `strtod', but they return `float' and `long double' values,
913 respectively (on some machines `double' and `long double' are the same).
915 * Ulrich Drepper has contributed new implementations of the floating-point
916 printing and reading code used in the `printf' family of functions and
917 `strtod', `strtof', and `strtold'. These new functions are perfectly
918 accurate, and much faster than the old ones.
920 * The implementation of the POSIX locale model was completely rewritten by
921 Ulrich Drepper. This includes the new programs `localedef' and `locale'
922 to compile the POSIX locale definition.
924 * The former dummy implementations of the strcoll and strxfrm function are
925 now replaced by fully functional code contributed by Ulrich Drepper. The
926 collation information comes from the POSIX locale definitions.
928 * The new header <langinfo.h> defines an interface for accessing
929 various locale-dependent data (using the locale chosen with `setlocale').
931 * Ulrich Drepper has contributed a new suite of functions for operation on
932 wide-character and multibyte-character strings, in <wchar.h>;
933 and classification and case conversion of wide characters, in <wctype.h>.
934 These new functions are conforming to the ISO C, Amendement 1 specification.
936 * There is now a second implementation of the standard I/O library available.
937 It comes from GNU libg++ as was written by Per Bothner, heavily modified
938 by Hongjiu Lu and made thread safe by Ulrich Drepper.
940 * You can now use positional parameter specifications in format strings
941 for the `printf' and `scanf' families of functions. For example,
942 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
943 ``Number 6, Mr Jones''. This is mainly useful when providing different
944 format strings for different languages, whose grammars may dictate
945 different orderings of the values being printed. To support this
946 feature, the interface for `register_printf_handler' has changed; see
947 the header file <printf.h> for details.
949 * The `printf' and `scanf' families of functions now understand a new
950 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
951 to group numbers as indicated by the locale; for `scanf' and friends, this
952 says to accept as valid only a number with all the proper grouping
953 separators in the right places. In the default "C" locale, numbers are
954 not grouped; but locales for specific countries will define the usual
955 conventions (i.e. separate thousands with `,' in the US locale).
957 * The pgrp functions have been regularized, slightly incompatibly but much
958 less confusingly. The core functions are now `getpgid' and `setpgid',
959 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
960 argument) and BSD `setpgrp' (identical to `setpgid') functions are
961 provided for compatibility. There is no longer an incompatible `getpgrp'
962 with an argument declared under _BSD_SOURCE; no BSD code uses it.
964 * The new header file <fts.h> and suite of functions simplify programs that
965 operate on directory trees. This code comes from 4.4 BSD.
967 * The resolver code has been updated from the BIND 4.9.5-P1 release.
968 Parts of the code were heavily modified by Ulrich Drepper to fit in the
969 NSS scheme used in glibc.
971 * There is a new malloc debugging hook `__memalign_hook'.
973 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
974 `unsigned int' in <sys/types.h>. These are for compatibility only and
975 their use is discouraged.
977 * The `-lmcheck' library to enable standard malloc debugging hooks is now
978 done differently, so that it works even without GNU ld.
980 * New function `euidaccess' checks allowed access to a file like `access',
981 but using the effective IDs instead of the real IDs.
983 * The time zone data files have been updated for the latest and greatest
984 local time conventions of the countries of the world.
986 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
987 see <dirent.h>.
989 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
990 for formatting floating-point numbers. They are provided only for
991 compatibility; new programs should use `sprintf' instead. There are
992 also equivalent function for the `long double' floating-point type and
993 all functions also exist in a reentrant form.
995 * The new auxiliary library `-lutil' from 4.4 BSD contains various
996 functions for maintaining the login-record files (primarily of use to
997 system programs such as `login'), and convenient functions for
998 allocating and initializing a pseudo-terminal (pty) device.
1000 * Ulrich Drepper has contributed new support for System V style
1001 shared memory and IPC on systems that support it.
1003 * Ulrich Drepper has contributed several miscellaneous new functions found
1004 in System V: The `hsearch' family of functions provide an effective
1005 implementation of hash tables; `a64l' and `l64a' provide a very simple
1006 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1007 number generator.
1009 * Ulrich Drepper has contributed new reentrant counterparts for the
1010 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1012 * Ulrich Drepper has contributed new, highly-optimized versions of several
1013 string functions for the i486/Pentium family of processors.
1015 * Ulrich Drepper has updated the Linux-specific code, based largely
1016 on work done in Hongjiu Lu's version of GNU libc for Linux.
1017 The GNU library now supports Linux versions 2.0.10 and later,
1018 using the ELF object file format (i[3456]86-*-linux).
1020 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1022 * David Mosberger-Tang and Richard Henderson have ported the C library
1023 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
1024 dynamic linking support for ELF/Alpha.
1026 * Richard Henderson contributed several Alpha optimized assembler function
1027 for arithmetic and string handling.
1029 * Ulrich Drepper has contributed a new set of message catalog functions to
1030 support multiple languages using the <libintl.h> interface, for use with
1031 his new package GNU gettext. Translation volunteers have contributed
1032 catalogs of the library's messages in Spanish, German, and Korean.
1034 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1035 program and the `catgets' function for reading the catalog files it
1036 creates. (The <libintl.h> interface is preferred; we include the
1037 <nl_types.h> interface using `catgets' only for source compatibility with
1038 programs already written to use it.)
1040 * New header file <values.h> gives SVID-compatible names for <limits.h>
1041 constants.
1043 * Various new macros, declarations, and small header files for compatibility
1044 with 4.4 BSD.
1046 * New function `group_member' is a convenient way to check if a process has
1047 a given effective group ID.
1049 * When using GCC 2.7 and later, the socket functions are now declared in a
1050 special way so that passing an argument of type `struct sockaddr_in *',
1051 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
1052 `struct sockaddr *' type, does not generate a type-clash warning.
1054 * New function `error' declared in header file <error.h> is a convenient
1055 function for printing error messages and optionally exiting; this is the
1056 canonical function used in GNU programs. The new functions `err', `warn',
1057 and friends in header file <err.h> are the canonical 4.4 BSD interface for
1058 doing the same thing.
1060 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
1061 POSIX.2 `glob' function to do ~ and {...} expansion.
1063 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
1064 `clearenv' which is used in POSIX.9 is also available.
1066 * New function `getsid' returns session ID number on systems that support it.
1068 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
1069 files <db.h> and <mpool.h> provide a rich set of functions for several
1070 types of simple databases stored in memory and in files, and <ndbm.h> is
1071 an old `ndbm'-compatible interface using the `db' functions. Link with
1072 `-ldb' to get these functions.
1074 * New macro `strdupa' copies a string like `strdup', but uses local stack
1075 space from `alloca' instead of dynamic heap space from `malloc'.
1077 * New function `strnlen' is like `strlen' but searches only a given maximum
1078 number of characters for the null terminator. `stpncpy', `strndup' and
1079 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1080 function.
1082 * New function `statfs' in header <sys/statfs.h>.
1084 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1085 provide convenient functions for operating on blocks of null-terminated
1086 strings.
1088 * A new suite of functions in <utmp.h> handle all the details of reading
1089 and writing the utmp file.
1091 * An implementation of the NIS/YP(tm) based NSS service was contributed by
1092 Thorsten Kukuk.
1094 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
1095 completely POSIX compliant and also implemented the extended functionality
1096 to handle alternate digit representation and alternate era date formats.
1098 * Ulrich Drepper provided an implementation of the `strptime' function
1099 defined in XPG4.2 which transforms a string into a `struct tm' value.
1101 * Paul Eggert provided the tzselect shell script as part of the timezone
1102 code. The shell script makes it easy to select the correct timezone
1103 specification.
1105 * The implementation of the malloc family of functions is completely replaced
1106 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
1107 The implementation uses the mmap function (if available) and it is
1108 optimized for the use in multi threaded programs.
1110 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
1111 functions. This new functionality is usable by specifying a special
1112 salt string and it is compatible with implementation on *BSD systems.
1114 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
1115 `getsubopt' to handle second level command line options, `bsd_signal'
1116 to access BSD style `signal' functionality, the obsolete `regexp' style
1117 expression matcher.
1119 * the `lchown' function is available on system which support this
1120 functionality.
1122 * The implementation of the shadow password handling function was contributed
1123 by Ulrich Drepper.
1125 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
1127 * POSIX.1g support was added. The <sys/select.h> header is available,
1128 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
1129 implementation of `getaddrinfo'.
1130 \f
1131 Version 1.09
1133 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
1135 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
1136 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
1138 * The new function `daemon' from 4.4 BSD is useful for server programs that
1139 want to put themselves in the background.
1141 * Joel Sherrill has contributed support for several standalone boards that
1142 run without an operating system.
1144 * `printf', `scanf' and friends now accept a `q' type modifier for long
1145 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
1147 * All of the code taken from BSD (notably most of the math and networking
1148 routines) has been updated from the BSD 4.4-Lite release.
1150 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
1152 * The new functions `getdomainname' and `setdomainname' fetch or change the
1153 YP/NIS domain name. These are system calls which exist on systems which
1154 have YP (aka NIS).
1156 * The time zone data files have been updated for the latest international
1157 conventions.
1159 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
1160 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
1161 \f
1162 Version 1.08
1164 * The C library now includes support for Sun RPC, from Sun's free
1165 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
1166 are included. (There is still no support for YP.)
1168 * Tom Quinn has contributed a port of the C library to SGI machines running
1169 Irix 4 (mips-sgi-irix4).
1171 * The new `lockf' function is a simplified interface to the locking
1172 facilities of `fcntl', included for compatibility.
1174 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
1176 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
1178 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
1179 compatibility.
1181 * The error message printed by `assert' for a failed assertion now includes
1182 the name of the program (if using GNU ld) and the name of the calling
1183 function (with versions of GCC that support this).
1185 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
1187 * The library now includes the <sys/mman.h> header file and memory
1188 management functions `mmap', `munmap', `mprotect', `msync', and
1189 `madvise', on systems that support those facilities.
1191 * The interface for `mcheck' has changed slightly: the function called to
1192 abort the program when an allocation inconsistency is detected now takes
1193 an argument that indicates the type of failure. The new function
1194 `mprobe' lets you request a consistency check for a particular block at
1195 any time (checks are normally done only when you call `free' or `realloc'
1196 on a block).
1198 * It is now possible to easily cross-compile the C library, building on one
1199 system a library to run on another machine and/or operating system. All
1200 you need to do is set the variable `HOST_CC' in `configparms' to the
1201 native compiler for programs to run on the machine you are building on (a
1202 few generator programs are used on Unix systems); set `CC' to the
1203 cross-compiler.
1205 * The new function `fexecve' (only implemented on the GNU system) executes
1206 a program file given a file descriptor already open on the file.
1207 \f
1208 Version 1.07
1210 * Brendan Kehoe has contributed most of a port to the DEC Alpha
1211 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
1213 * You can set the variable `libprefix' in `configparms' to specify a prefix
1214 to be prepended to installed library files; this makes it easy to install
1215 the GNU C library to be linked as `-lgnuc' or whatever.
1217 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
1218 copies a limited number of characters from a string, and returns the
1219 address of the last character written.
1221 * You no longer need to check for whether the installed `stddef.h' is
1222 compatible with the GNU C library. configure now checks for you.
1224 * You can now define a per-stream `fileno' function to convert the
1225 stream's cookie into an integral file descriptor.
1227 * ``malloc (0)'' no longer returns a null pointer. Instead, it
1228 allocates zero bytes of storage, and returns a unique pointer which
1229 you can pass to `realloc' or `free'. The behavior is undefined if
1230 you dereference this pointer.
1232 * The C library now runs on Sony NEWS m68k machines running either
1233 NewsOS 3 or NewsOS 4.
1235 * The new `syscall' function is a system-dependent primitive function
1236 for invoking system calls. It has the canonical behavior on Unix
1237 systems, including unreliable return values for some calls (such as
1238 `pipe', `fork' and `getppid').
1240 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
1241 to `EAGAIN', which is the preferred name. On systems whose kernels
1242 use two distinct codes, the C library now translates EWOULDBLOCK to
1243 EAGAIN in every system call function.
1244 \f
1245 Version 1.06
1247 * The GNU C Library Reference Manual is now distributed with the library.
1248 `make dvi' will produce a DVI file of the printed manual.
1249 `make info' will produce Info files that you can read on line using C-h i
1250 in Emacs or the `info' program.
1251 Please send comments on the manual to bug-glibc-manual@gnu.org.
1253 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
1255 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
1257 * Jason Merrill has contributed a port to the Sequent Symmetry running
1258 Dynix version 3 (i386-sequent-dynix).
1260 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
1261 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
1263 * New function `memory_warnings' lets you arrange to get warnings when
1264 malloc is running out of memory to allocate, like Emacs gives you.
1266 * The C library now contains the relocating allocator used in Emacs 19 for
1267 its editing buffers. This allocator (ralloc) minimizes allocation
1268 overhead and fragmentation by moving allocated regions around whenever it
1269 needs to. You always refer to a ralloc'd region with a "handle" (a
1270 pointer to a pointer--an object of type `void **').
1272 * There is a new `printf' format: `%m' gives you the string corresponding
1273 to the error code in `errno'.
1275 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
1276 or `%[' conversion, but instead of filling in a fixed-sized buffer you
1277 pass, the `a' modifier says to fill in a `char **' you pass with a
1278 malloc'd string.
1280 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
1281 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
1282 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
1284 * `mkstemp' is a traditional Unix function to atomically create and open a
1285 uniquely-named temporary file.
1286 \f
1287 Version 1.05
1289 * The standard location for the file that says what the local timezone is
1290 has changed again. It is now `/usr/local/etc/localtime' (or more
1291 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
1293 * The distribution no longer contains any files with names longer than 14
1294 characters.
1296 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
1297 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
1299 * New functions `ttyslot' and `syslog' from 4.4 BSD.
1300 \f
1301 Version 1.04
1303 * The configuration process has changed quite a bit. The `configure'
1304 script is now used just like the configuration scripts for other GNU
1305 packages. The `sysdeps' directory hierarchy is much rearranged.
1306 The file `INSTALL' explains the new scheme in detail.
1308 * The header files no longer need to be processed into ANSI C and
1309 traditional C versions. There is just one set of files to install, and
1310 it will work with ANSI or old C compilers (including `gcc -traditional').
1312 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
1313 MIPS DECStation running Ultrix 4.
1315 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
1316 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
1317 made itself into a shared library.
1319 * Yet further improved support for the i386, running 4.3 BSD-like systems
1320 (such as Mach 3 with the Unix single-server), or System V.
1322 * New function `strncasecmp' to do case-insensitive string comparison
1323 with limited length.
1325 * New function `strsep' is a reentrant alternative to `strtok'.
1327 * New functions `scandir' and `alphasort' for searching directories.
1329 * New function `setenv' is a better interface to `putenv'.
1331 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
1332 function for traversing a directory tree.
1334 * The GNU obstack package is now also part of the C library.
1335 The new function `open_obstack_stream' creates a stdio stream that
1336 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
1337 formatted output directly to an obstack.
1339 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
1340 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
1342 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
1344 * The new functions `strfry' and `memfrob' do mysterious and wonderful
1345 things to your strings.
1347 * There are some new test programs: test-fseek, testmb, and testrand.
1349 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
1350 These ports are not finished, but are a good starting place for really
1351 supporting those systems.
1353 * `/etc/localtime' is now the standard location for the file that says what
1354 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
1355 This follows the general principle that `/etc' is the place for all local
1356 configuration files.
1358 * The C library header files now use `extern "C"' when used by the C++
1359 compiler, so the C library should now work with C++ code.
1361 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
1362 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
1363 in <strings.h>.)
1365 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
1366 function which uses the `merge sort' algorithm, and is said to be
1367 significantly faster than the old GNU `qsort' function. Merge sort is
1368 now the standard `qsort' function. The new algorithm can require a lot
1369 of temporary storage; so, the old sorting function is called when the
1370 required storage is not available.
1372 * The C library now includes Michael Glad's Ultra Fast Crypt, which
1373 provides the Unix `crypt' function, plus some other entry points.
1375 * The code and header files taken from 4.4 BSD have been updated with the
1376 latest files released from Berkeley.
1377 \f
1378 ----------------------------------------------------------------------
1379 Copyright information:
1381 Copyright (C) 1992-1999,2000,01,02 Free Software Foundation, Inc.
1383 Permission is granted to anyone to make or distribute verbatim copies
1384 of this document as received, in any medium, provided that the
1385 copyright notice and this permission notice are preserved,
1386 thus giving the recipient permission to redistribute in turn.
1388 Permission is granted to distribute modified versions
1389 of this document, or of portions of it,
1390 under the above conditions, provided also that they
1391 carry prominent notices stating who last changed them.
1392 \f
1393 Local variables:
1394 version-control: never
1395 End: