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1 GNU C Library NEWS -- history of user-visible changes. 2002-8-28
2 Copyright (C) 1992-2000,01,02 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. Implemented by Ulrich Drepper.
25 * The malloc functions were completely rewritten by Wolfram Gloger based
26 on Doug Lea's malloc-2.7.0.c.
28 * Isamu Hasegawa contributed a completely new and POSIX-conformant
29 implementation of regex.
31 * Bruno Haible upgraded the iconv and locale implementation to support
32 Unicode 3.2.
34 * Contents of the LC_* and LANG environment variables in the CEN style are
35 not recognized anymore. It never was used. Change by Ulrich Drepper.
37 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
38 thread-local storage (TLS) ABI on some platforms.
39 Changes by Ulrich Drepper. SH support by Kaz Kojima.
41 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
42 and EUC-JISX0213.
44 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
45 BSD-compatible interface for getting all network interface addresses.
46 Implementation for IPv4 by Roland McGrath.
48 * Loading of locale data is faster due to the introduction of a locale
49 archive. Implemented by Roland McGrath and Ulrich Drepper.
51 * Startup times are significantly reduced by not using exported functions
52 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
53 and Ulrich Drepper.
54 o\f
55 Version 2.2.6
57 * The Hurd now uses the GNU libio implementation of stdio rather than the
58 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
60 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
61 with the same behavior as the Linux system call of the same name.
62 \f
63 Version 2.2.5
65 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
66 128-bit long double format.
68 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
69 IBM1161, and IBM1162 charsets.
71 * Andreas Jaeger contributed a port to x86-64/Linux.
73 * Peter Bruin contributed a port to PowerPC/Hurd.
75 * libc functions using I/O streams now can handle wide-oriented streams
76 as well.
78 * optimizations in the dynamic linker. Binaries created by recent binutils
79 versions start up quicker due to reduced time spent on relocations.
81 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
82 \f
83 Version 2.2.4
85 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
86 asinh, atanh, j0 for the 128-bit long double format.
88 * Bruno Haible updated all the code handling Unicode in some form to
89 support Unicode 3.1.
91 * Speed of regex for single-byte locales is back to previous levels.
92 Patch by Isamu Hasegawa.
94 * Alpha, SPARC, and IA-64 now also using floating stacks.
96 * Startup time of internationalized applications greatly improved through
97 iconv cache. Use iconvconfig to generate the cache file.
98 Contributed by Ulrich Drepper.
100 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
101 severe performance problems. Patch by David Mosberger.
103 * The Hurd port got a lot more functionality like AIO, various stdio
104 extensions, etc. Mainly done by Roland McGrath.
106 * mtrace can now lookup symbols in shared libraries.
107 \f
108 Version 2.2.3
110 * Intel's IA-64 math library is largely integrated. It provides fast and
111 accurate implementatations for most basic and standard math functions
112 in float, double, and long double format.
114 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
115 and asin for the 96-bit long double format and asin, log, tan for the
116 128-bit long double format.
118 * The beginning of a last-bit accurate math library by IBM Haifa were added.
119 The basic double functions exist today. Contributed by Abraham Ziv
120 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
121 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
123 * An asynchronous name lookup library was added. The interface is designed
124 after POSIX AIO. The proposal was circulated beforehand to get comments.
125 No negative ones came in. Implemented by Ulrich Drepper.
127 * Port to S390/64bit contributed by Martin Schwidefsky
128 <schwidefsky@de.ibm.com>.
130 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
131 of functions for Linux/IA-64.
133 * The RPC code is now thread safe. Threads can now use the same service
134 of different services at the same time. Patch by Eric Norum
135 <eric.norum@usask.ca> with some help by Ulrich Drepper.
137 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
138 family of functions for Linux/S390.
140 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
141 of functions for Linux/x86.
143 * Port to Linux/CRIS contributed by Axis Communications.
144 \f
145 Version 2.2.2
147 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
148 we can now check for namespace violations and missing declarations. The
149 result is that almost all headers are now Unix-compliant (as defined in
150 the upcoming XPG6). The negative side is that some programs might need
151 corrections, too, if they depend on the incorrect form of the headers in
152 previous versions which defined too many symbols and included too many
153 other headers.
155 * regex now handles multibyte character sets correctly.
156 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
158 * iconv (the program) does now conform to the upcoming XPG6 and handles
159 charmaps. Instead of the charset names the path of charmaps can be
160 provided and the conversion happens based on this data.
161 Contributed by Ulrich Drepper.
163 * The locale program now provides detailed information about the installed
164 locales. While
166 locale -a
168 only lists the names of the supported locales
170 locale -a --verbose
172 provides details such as country, language, and codeset name.
173 Contributed by Ulrich Drepper.
174 \f
175 Version 2.2.1
177 * The gencat program now parses the input file according to the charset
178 selected by the LC_CTYPE category. This is important for stateful
179 character sets. To make generating catalogs easier there is a way
180 to overwrite the charset selected by the locale: before the first
181 message or $ quote line the catalog can contain a line like
183 $ codeset=ISO-8859-2
185 to select the charset (ISO-8859-2 in this case).
187 Implemented by Shinya Hanataka and Ulrich Drepper.
189 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
190 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
191 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
193 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
194 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
196 * The LANGUAGE environment variable is now ignored unless the locale is
197 changed from the default "C" locale.
199 * The usual bug fixes.
200 \f
201 Version 2.2
203 * Greg McGary added runtime support for bounds checking using gcc's
204 new -fbounded-pointers option. ix86 target is complete. PowerPC
205 is in progress.
207 * Thorsten Kukuk added secure mode support to nscd.
209 * The Berkeley db libraries have been removed.
211 Related, the nss_db module is now in a separate package since it
212 obviously requires a database library being available.
214 * Wide character I/O streams implemented by Ulrich Drepper.
216 * Functions from the extended socket API added by Ulrich Drepper.
218 * Functions feenableexcept and fedisableexcept to control the
219 behaviour of individual exceptions have been added by Andreas Jaeger.
221 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
223 * The resolver code has been updated from bind 8.2.3-T5B which supports
224 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
225 and Mark Kettenis.
227 This change could in some situations effect backward compatibility. Since
228 now `_res' is a thread-local instead of a global variable, modifying it
229 in one thread does not have any effect in other threads.
231 The resolver library was also extended to allow IPv6 as the transport
232 protocol for the requests. This work was done by Stig Venaas.
234 * Compatibility code for K&R C compilers has been removed from the
235 header files. A ISO C compiler is needed to use the library
236 (conforming to either C89 or C99 standard).
238 * Complete rewrite of the localedef program to support multibyte character
239 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
240 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
241 Implemented by Ulrich Drepper.
243 Bruno Haible significantly improved the generation and use of the data
244 structures for the wide character tables.
246 * Plural handling in gettext implemented by Ulrich Drepper.
248 * The utmp daemon has been removed.
250 * The port to MIPS-Linux has been finished by Andreas Jaeger.
252 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
253 and Yutaka Niibe.
255 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
257 * POSIX barriers implemented by Kaz Kylheku.
259 * POSIX spawn function family implemented by Ulrich Drepper.
261 * POSIX spinlocks are now available.
263 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
265 * the configure option --enable-kernel=X.Y.Z allows to strip out
266 compatibility for kernel versions before X.Y.Z. This is currently only
267 implemented for Linux.
269 * the sockaddr_in6 structure changed. The IPv6 working group added a new
270 field sin6_scope_id. This means that all programs using IPv6 should be
271 recompiled. Don't expect binary compatibility with previous glibc
272 versions.
274 * various conversion modules for IBM character sets contributed by
275 Masahide Washizawa.
277 * IA-64 port by Jes Sorensen and HJ Lu.
279 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
280 Compiling the GNU C Library for Linux/ia64
281 ******************************************
283 Please refer to the file INSTALL in the same directory as you found
284 this file for general information about configuring and compiling
285 glibc.
287 For general inquiries about glibc under Linux/ia64 please use the
288 following mailing list linux-ia64@linuxia64.org or one of the relevant
289 glibc mailing lists.
291 Recommended Tools for Compilation
292 =================================
294 In order for glibc-2.2 to build correctly on the ia64 you need at
295 least the following versions of the GNU tools (the :
297 * The Cygnus toolchain snapshot for the ia64 as of August 4
298 including the provided set of patches. It is however recommend
299 you use the October 24 toolchain snapshot or a more recent version.
301 OR alternatively you can try the following (the Cygnus toolchain is
302 the recommended solution):
304 * GCC and binutils, GAS and GNU LD out of CVS from
305 sources.redhat.com as of August 28, 2000 or later. The CVS tree
306 may require special patches to work properly on the ia64.
308 Configuring and compiling GNU Libc for Linux/ia64
309 =================================================
311 The library requires Linux kernel version 2.4.0-test4-000728 or
312 later to funtion properly. Besides that it support for debug libraries
313 is currently untested. Hence the following options
314 are required for configuring the library:
316 --disable-debug --enable-kernel=2.4.0
318 It is also important that you make sure the library picks up the
319 appropriate kernel header files, if you do not have recent enough
320 kernel headers in /usr/src/linux/include, you should use the
321 --with-headers=<path> option to specify the location.
323 As an example I personally use the following options to configure
324 the library:
326 --disable-debug
327 --disable-cvs
328 --enable-kernel=2.4.0
329 --host=ia64-linux
330 --enable-add-ons=yes
331 --prefix=/usr
332 --with-headers=/home/jes/linux/include
335 Good luck
337 Jes Sorensen <jes@linuxcare.com>,
338 November 14th, 2000
339 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
340 \f
341 Version 2.1.3
343 * bug fixes
345 \f
346 Version 2.1.2
348 * bug fixes
350 \f
351 Version 2.1.1
353 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
355 * New xdr functions are added; some rpc functions are now 64bit clean.
357 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
359 * Fixed known incompatibilities with glibc 2.0.
361 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
363 * Optimized a number of functions (especially the ELF dynamic loader).
365 * Update timezone data files.
367 * lots of charmaps corrections
369 * some new locale definitions and charmaps
371 \f
372 Version 2.1
374 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
375 conform to POSIX member type requirements. Symbol versions have been
376 adjusted as needed within the library, and for direct use by applications,
377 but there is potential for problems if third-party libraries use
378 struct timeval as part of their interface. This does not present
379 a problem for X and other "essential" system libraries.
381 * An additional locale model to support C++ Standard Library locale
382 model and probably more was implemented by Ulrich Drepper.
384 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
385 symbol level.
387 * Miles Bader provided the `argp' function family to support hierachical
388 command line argument parsing, layered on top of getopt.
390 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
392 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
393 numbers.
395 * scanf recognizes the %a and %A format for scanning floating point numbers.
397 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
398 information and interfaces for the available integer types.
400 * about 130 new math functions were added to implement the ISO C9x math
401 library.
403 * the new header <complex.h> contains definitions of the complex math
404 functions from ISO C 9X.
406 * the new header <tgmath.h> defines generic macros to use complex or
407 real valued functions.
409 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
411 * Andreas Jaeger provided a test suite for the math library.
413 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
415 * Ulrich Drepper added character set conversion functions (iconv).
417 * Optimized string functions have been added.
419 * The localedata addon is now part of glibc.
421 * An implementation of profiling shared libraries was added by Ulrich Drepper.
423 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
424 daemon for NSS (nscd).
426 Missing a better place here are some numbers on improvements. Under
427 Linux 2.1.125 un-tar-ing the kernel sources takes
429 user system wall
431 using local files 12.19s 6.88s 22.91s
433 using NIS 13.92s 8.91s 26.34s
435 using NIS & nscd 10.37s 7.34s 25.30s
437 using NIS+ 27.57s 30.37s 640.46s
439 using NIS+ & nscd 10.25s 7.83s 26.51s
441 using NIS & old nscd [1] 13.83s 8.32s 29.60s
443 Keep in mind that non-namelookup related operations dominate above times.
444 It was just a common complain that using NIS+ unpacking the kernel is
445 horribly slow.
447 [1] The old nscd implementation is not available anymore since it was
448 distributed with glibc up to version 2.0.98 and thus is now replaced.
450 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
452 * Mark Kettenis provided a Hesiod NSS module.
454 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
455 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
457 * rcmd can now handle netgroups (Dick Streefland).
459 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
460 Bambrough.
462 * Support for the IPv6 protocol has been added to the socket API, as per the
463 latest draft standards.
465 * Support for Linux 2.2 has been added.
467 * Interface changes relative to the latest 2.0.x release:
468 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
469 addseverity NEW: Unix98
470 alphasort64 NEW: LFS
471 argp_err_exit_status NEW: argp, GNU ext
472 argp_error NEW: argp, GNU ext
473 argp_failure NEW: argp, GNU ext
474 argp_help NEW: argp, GNU ext
475 argp_parse NEW: argp, GNU ext
476 argp_program_bug_address NEW: argp, GNU ext
477 argp_program_version NEW: argp, GNU ext
478 argp_program_version_hook NEW: argp, GNU ext
479 argp_state_help NEW: argp, GNU ext
480 argp_usage NEW: argp, GNU ext
481 authdes_create NEW: Secure RPC
482 authdes_getucred NEW: Secure RPC
483 authdes_pk_create NEW: Secure RPC
484 backtrace NEW: GNU ext.
485 backtrace_symbols NEW: GNU ext.
486 backtrace_symbols_fd NEW: GNU ext.
487 cacos NEW: ISO C 9x
488 cacosf NEW: ISO C 9x
489 cacosh NEW: ISO C 9x
490 cacoshf NEW: ISO C 9x
491 cacoshl NEW: ISO C 9x
492 cacosl NEW: ISO C 9x
493 capget NEW: kernel
494 capset NEW: kernel
495 carg NEW: ISO C 9x
496 cargf NEW: ISO C 9x
497 cargl NEW: ISO C 9x
498 casin NEW: ISO C 9x
499 casinf NEW: ISO C 9x
500 casinh NEW: ISO C 9x
501 casinhf NEW: ISO C 9x
502 casinhl NEW: ISO C 9x
503 casinl NEW: ISO C 9x
504 catan NEW: ISO C 9x
505 catanf NEW: ISO C 9x
506 catanh NEW: ISO C 9x
507 catanhf NEW: ISO C 9x
508 catanhl NEW: ISO C 9x
509 catanl NEW: ISO C 9x
510 cbc_crypt NEW: Secure RPC
511 ccos NEW: ISO C 9x
512 ccosf NEW: ISO C 9x
513 ccosh NEW: ISO C 9x
514 ccoshf NEW: ISO C 9x
515 ccoshl NEW: ISO C 9x
516 ccosl NEW: ISO C 9x
517 cexp NEW: ISO C 9x
518 cexpf NEW: ISO C 9x
519 cexpl NEW: ISO C 9x
520 cimag NEW: ISO C 9x
521 cimagf NEW: ISO C 9x
522 cimagl NEW: ISO C 9x
523 clearerr_locked REMOVED
524 clntunix_create NEW: sunrpc ext
525 clog NEW: ISO C 9x
526 clog10 NEW: ISO C 9x
527 clog10f NEW: ISO C 9x
528 clog10l NEW: ISO C 9x
529 clogf NEW: ISO C 9x
530 clogl NEW: ISO C 9x
531 conj NEW: ISO C 9x
532 conjf NEW: ISO C 9x
533 conjl NEW: ISO C 9x
534 cpow NEW: ISO C 9x
535 cpowf NEW: ISO C 9x
536 cpowl NEW: ISO C 9x
537 cproj NEW: ISO C 9x
538 cprojf NEW: ISO C 9x
539 cprojl NEW: ISO C 9x
540 creal NEW: ISO C 9x
541 crealf NEW: ISO C 9x
542 creall NEW: ISO C 9x
543 creat64 NEW: LFS
544 csin NEW: ISO C 9x
545 csinf NEW: ISO C 9x
546 csinh NEW: ISO C 9x
547 csinhf NEW: ISO C 9x
548 csinhl NEW: ISO C 9x
549 csinl NEW: ISO C 9x
550 csqrt NEW: ISO C 9x
551 csqrtf NEW: ISO C 9x
552 csqrtl NEW: ISO C 9x
553 ctan NEW: ISO C 9x
554 ctanf NEW: ISO C 9x
555 ctanh NEW: ISO C 9x
556 ctanhf NEW: ISO C 9x
557 ctanhl NEW: ISO C 9x
558 ctanl NEW: ISO C 9x
559 des_setparity NEW: Secure RPC
560 ecb_crypt NEW: Secure RPC
561 endutxent NEW: Unix98
562 exp10 NEW: ISO C 9x
563 exp10f NEW: ISO C 9x
564 exp10l NEW: ISO C 9x
565 exp2 NEW: ISO C 9x
566 exp2f NEW: ISO C 9x
567 exp2l NEW: ISO C 9x
568 fattach NEW: STREAMS
569 fdetach NEW: STREAMS
570 fdim NEW: ISO C 9x
571 fdimf NEW: ISO C 9x
572 fdiml NEW: ISO C 9x
573 feclearexcept NEW: ISO C 9x
574 fegetenv NEW: ISO C 9x
575 fegetexceptflag NEW: ISO C 9x
576 fegetround NEW: ISO C 9x
577 feholdexcept NEW: ISO C 9x
578 feof_locked REMOVED
579 feraiseexcept NEW: ISO C 9x
580 ferror_locked REMOVED
581 fesetenv NEW: ISO C 9x
582 fesetexceptflag NEW: ISO C 9x
583 fesetround NEW: ISO C 9x
584 fetestexcept NEW: ISO C 9x
585 feupdateenv NEW: ISO C 9x
586 fflush_locked REMOVED
587 ffsl NEW: GNU ext.
588 ffsll NEW: GNU ext.
589 fgetpos64 NEW: LFS
590 fgets_unlocked NEW: GNU ext.
591 fileno_locked REMOVED
592 fma NEW: ISO C 9x
593 fmaf NEW: ISO C 9x
594 fmal NEW: ISO C 9x
595 fmax NEW: ISO C 9x
596 fmaxf NEW: ISO C 9x
597 fmaxl NEW: ISO C 9x
598 fmin NEW: ISO C 9x
599 fminf NEW: ISO C 9x
600 fminl NEW: ISO C 9x
601 fmtmsg NEW: Unix98
602 fopen64 NEW: LFS
603 fputc_locked REMOVED
604 fputs_unlocked NEW: GNU ext.
605 fread_unlocked NEW: GNU ext.
606 freopen64 NEW: LFS
607 fseeko NEW: Unix98
608 fsetpos64 NEW: LFS
609 fstatfs64 NEW: LFS
610 fstatvfs NEW: Unix98
611 fstatvfs64 NEW: LFS
612 ftello NEW: Unix98
613 ftello64 NEW: LFS
614 ftruncate64 NEW: LFS
615 ftw64 NEW: LFS
616 fwrite_unlocked NEW: GNU ext.
617 gai_strerror NEW: IPv6
618 gamma_r REMOVED
619 gammaf_r REMOVED
620 gammal_r REMOVED
621 getchar_locked REMOVED
622 getdate NEW: Unix98
623 getdate_err NEW: Unix98
624 getdate_r NEW: GNU ext.
625 getmsg NEW: STREAMS
626 getnameinfo NEW: IPv6
627 getnetname NEW: Secure RPC
628 getpmsg NEW: STREAMS
629 getpt NEW: Unix98 PTY
630 getrlimit64 NEW: LFS
631 getutxent NEW: Unix98
632 getutxid NEW: Unix98
633 getutxline NEW: Unix98
634 glob64 NEW: GNU ext.
635 globfree64 NEW: GNU ext.
636 gnu_get_libc_release NEW: GNU ext.
637 gnu_get_libc_version NEW: GNU ext.
638 grantpt NEW: Unix98 PTY
639 host2netname NEW: Secure RPC
640 iconv NEW: iconv
641 iconv_close NEW: iconv
642 iconv_open NEW: iconv
643 if_freenameindex NEW: IPv6
644 if_indextoname NEW: IPv6
645 if_nameindex NEW: IPv6
646 if_nametoindex NEW: IPv6
647 in6addr_any NEW: IPv6
648 in6addr_loopback NEW: IPv6
649 inet6_isipv4mapped NEW: IPv6
650 isastream NEW: STREAMS
651 iswblank NEW: GNU ext.
652 key_decryptsession NEW: Secure RPC
653 key_decryptsession_pk NEW: Secure RPC
654 key_encryptsession NEW: Secure RPC
655 key_encryptsession_pk NEW: Secure RPC
656 key_gendes NEW: Secure RPC
657 key_get_conv NEW: Secure RPC
658 key_secretkey_is_set NEW: Secure RPC
659 key_setnet NEW: Secure RPC
660 key_setsecret NEW: Secure RPC
661 llrint NEW: ISO C 9x
662 llrintf NEW: ISO C 9x
663 llrintl NEW: ISO C 9x
664 llround NEW: ISO C 9x
665 llroundf NEW: ISO C 9x
666 llroundl NEW: ISO C 9x
667 log2 NEW: ISO C 9x
668 log2f NEW: ISO C 9x
669 log2l NEW: ISO C 9x
670 lrint NEW: ISO C 9x
671 lrintf NEW: ISO C 9x
672 lrintl NEW: ISO C 9x
673 lround NEW: ISO C 9x
674 lroundf NEW: ISO C 9x
675 lroundl NEW: ISO C 9x
676 lseek64 NEW: LFS
677 makecontext NEW: Unix98
678 mempcpy NEW: GNU ext.
679 mmap64 NEW: LFS
680 moncontrol REMOVED
681 modify_ldt NEW: kernel
682 nan NEW: ISO C 9x
683 nanf NEW: ISO C 9x
684 nanl NEW: ISO C 9x
685 nearbyint NEW: ISO C 9x
686 nearbyintf NEW: ISO C 9x
687 nearbyintl NEW: ISO C 9x
688 netname2host NEW: Secure RPC
689 netname2user NEW: Secure RPC
690 nexttoward NEW: ISO C 9x
691 nexttowardf NEW: ISO C 9x
692 nexttowardl NEW: ISO C 9x
693 nftw NEW: Unix98
694 nftw64 NEW: LFS
695 open64 NEW: LFS
696 passwd2des NEW: Secure RPC
697 pow10 NEW: GNU ext.
698 pow10f NEW: GNU ext.
699 pow10l NEW: GNU ext.
700 pread NEW: Unix98
701 pread64 NEW: LFS
702 printf_size NEW: GNU ext.
703 printf_size_info NEW: GNU ext.
704 profil_counter REMOVED
705 pthread_mutexattr_getkind_np REPLACED
706 pthread_mutexattr_setkind_np REPLACED
707 ptsname NEW: Unix98 PTY
708 ptsname_r NEW: Unix98 PTY
709 putc_locked REMOVED
710 putchar_locked REMOVED
711 putgrent NEW: GNU ext.
712 putmsg NEW: STREAMS
713 putpmsg NEW: STREAMS
714 pututxline NEW: Unix98
715 pwrite NEW: Unix98
716 pwrite64 NEW: LFS
717 readdir64 NEW: LFS
718 readdir64_r NEW: LFS
719 remquo NEW: ISO C 9x
720 remquof NEW: ISO C 9x
721 remquol NEW: ISO C 9x
722 round NEW: ISO C 9x
723 roundf NEW: ISO C 9x
724 roundl NEW: ISO C 9x
725 rtime NEW: GNU ext.
726 scalbln NEW: ISO C 9x
727 scalblnf NEW: ISO C 9x
728 scalblnl NEW: ISO C 9x
729 scandir64 NEW: LFS
730 sendfile NEW: kernel
731 setcontext NEW: Unix98
732 setrlimit64 NEW: LFS
733 setutxent NEW: Unix98
734 sighold NEW: Unix98
735 sigignore NEW: Unix98
736 sigqueue NEW: POSIX.1b
737 sigrelse NEW: Unix98
738 sigset NEW: POSIX.1b
739 sigtimedwait NEW: POSIX.1b
740 sigwaitinfo NEW: POSIX.1b
741 sincos NEW: GNU ext.
742 sincosf NEW: GNU ext.
743 sincosl NEW: GNU ext.
744 statfs64 NEW: LFS
745 statvfs NEW: Unix98
746 statvfs64 NEW: LFS
747 strcasestr NEW: GNU ext.
748 strtoimax NEW: ISO C 9x
749 strtoumax NEW: ISO C 9x
750 strverscmp NEW: GNU ext.
751 svcauthdes_stats NEW: Secure RPC
752 svcunix_create NEW: sunrpc etx
753 svcunixfd_create NEW: sunrpc ext
754 swapcontext NEW: Unix98
755 tcgetsid NEW: Unix98 PTY
756 tdestroy NEW: GNU ext.
757 tgamma NEW: ISO C 9x
758 tgammaf NEW: ISO C 9x
759 tgammal NEW: ISO C 9x
760 tmpfile64 NEW: LFS
761 trunc NEW: ISO C 9x
762 truncate64 NEW: LFS
763 truncf NEW: ISO C 9x
764 truncl NEW: ISO C 9x
765 umount2 NEW: kernel
766 unlockpt NEW: Unix98 PTY
767 updwtmpx NEW: Unix98
768 user2netname NEW: Secure RPC
769 utmpxname NEW: Unix98
770 versionsort NEW: GNU ext.
771 versionsort64 NEW: GNU ext.
772 waitid NEW: Unix98
773 wcscasecmp NEW: GNU ext.
774 wcsncasecmp NEW: GNU ext.
775 wcsnlen NEW: GNU ext.
776 wcstoimax NEW: ISO C 9x
777 wcstoll NEW: ISO C 9x
778 wcstoull NEW: ISO C 9x
779 wcstoumax NEW: ISO C 9x
780 wcswcs NEW: Unix98
781 wordexp NEW: POSIX.2
782 wordfree NEW: POSIX.2
783 write_profiling REMOVED
784 xdecrypt NEW: Secure RPC
785 xdr_authdes_cred NEW: Secure RPC
786 xdr_authdes_verf NEW: Secure RPC
787 xdr_cryptkeyarg NEW: Secure RPC
788 xdr_cryptkeyarg2 NEW: Secure RPC
789 xdr_cryptkeyres NEW: Secure RPC
790 xdr_getcredres NEW: Secure RPC
791 xdr_key_netstarg NEW: Secure RPC
792 xdr_key_netstres NEW: Secure RPC
793 xdr_keybuf NEW: Secure RPC
794 xdr_keystatus NEW: Secure RPC
795 xdr_netnamestr NEW: Secure RPC
796 xdr_sizeof NEW: Secure RPC
797 xdr_unixcred NEW: sunrpc ext
798 xencrypt NEW: Secure RPC
799 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
800 \f
801 Version 2.0.6
803 * more bug fixes
805 \f
806 Version 2.0.5
808 * more bug fixes
810 * inet_ntoa is thread-safe
812 * updwtmp is moved from libutil to libc
814 * rewrite of cbrt function
816 * update of timezone data
817 \f
818 Version 2.0.4
820 * more bug fixes
821 \f
822 Version 2.0.3
824 * more bug fixes
825 \f
826 Version 2.0.2
828 * more bug fixes
830 * add atoll function
832 * fix complex problems in Berkeley DB code
834 * fix math functions
835 \f
836 Version 2.0.1
838 * fixed lots of header problems (especially Linux/GNU specific)
840 * dynamic loader preserves all registers
842 * Roland McGrath provided support for handling of auxiliary objects in
843 the ELF dynamic loader.
845 * support for parallel builds is improved
846 \f
847 Version 2.0
849 * GNU extensions are no longer declared by default. To enable them you
850 must define the macro `_GNU_SOURCE' in your program or compile with
851 `-D_GNU_SOURCE'.
853 * The library has changed from using GNU ld symbol aliases to using weak
854 symbols where available. The ELF object file format supports weak
855 symbols; GNU ld also supports weak symbols in the a.out format. (There
856 is also now support for other GNU ld extensions in ELF. Use the
857 `--with-elf' option to configure to indicate you have ELF, and
858 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
859 of many files which contained only symbol aliases, reducing the size of
860 the source and the compiled library; many other files were renamed to
861 less cryptic names previously occupied by the symbol alias files.
862 There is a new header file <elf.h> for programs which operate on
863 files in the ELF format.
865 * Converted to Autoconf version 2, so `configure' has more options.
866 Run `configure --help' to see the details.
868 * The library can now be configured to build profiling, highly-optimized
869 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
870 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
871 `configure' enable building these extra libraries. The shared library is
872 built by default when using both ELF and GNU ld. When shared libraries
873 are enabled, the new library `-ldl' is available for arbitrary run-time
874 loading of shared objects; its interface is defined in <dlfcn.h>. The
875 new header file <link.h> gives access to the internals of the run-time
876 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
877 application of same name on other systems and it provides information
878 about dynamically linked binaries.
880 * The C library now provides the run-time support code for profiling
881 executables compiled with `-pg'. Programs can control the profiling code
882 through the interface in <sys/gmon.h>. The `gmon.out' files written by
883 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
884 the support for this file format was contributed by David Mosberger-Tang.
886 * The math code has been replaced with a math library based on fdlibm from
887 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
888 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
889 functions. The math functions now reside in a separate library, so
890 programs using them will need to use `-lm' their linking commands.
892 * John C. Bowman contributed optimized ix87 assembler inline functions.
894 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
895 mechanism similar to that found in Solaris 2. This is now used for the
896 group, passwd, hosts, networks, services, protocols, rpc, ethers,
897 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
898 file controls what services are used for each individual database. This
899 works by loading shared libraries with names specified in `nsswitch.conf',
900 so service modules can be changed or added at any time without even
901 relinking any program. Currently there are the file, db, and NIS based
902 NSS services available.
904 * The new functions `strtoq' and `strtouq' parse integer values from
905 strings, like `strtol' and `strtoul', but they return `long long int' and
906 `unsigned long long int' values, respectively (64-bit quantities).
908 * The new functions `strtof' and `strtold' parse floating-point values from
909 strings, like `strtod', but they return `float' and `long double' values,
910 respectively (on some machines `double' and `long double' are the same).
912 * Ulrich Drepper has contributed new implementations of the floating-point
913 printing and reading code used in the `printf' family of functions and
914 `strtod', `strtof', and `strtold'. These new functions are perfectly
915 accurate, and much faster than the old ones.
917 * The implementation of the POSIX locale model was completely rewritten by
918 Ulrich Drepper. This includes the new programs `localedef' and `locale'
919 to compile the POSIX locale definition.
921 * The former dummy implementations of the strcoll and strxfrm function are
922 now replaced by fully functional code contributed by Ulrich Drepper. The
923 collation information comes from the POSIX locale definitions.
925 * The new header <langinfo.h> defines an interface for accessing
926 various locale-dependent data (using the locale chosen with `setlocale').
928 * Ulrich Drepper has contributed a new suite of functions for operation on
929 wide-character and multibyte-character strings, in <wchar.h>;
930 and classification and case conversion of wide characters, in <wctype.h>.
931 These new functions are conforming to the ISO C, Amendement 1 specification.
933 * There is now a second implementation of the standard I/O library available.
934 It comes from GNU libg++ as was written by Per Bothner, heavily modified
935 by Hongjiu Lu and made thread safe by Ulrich Drepper.
937 * You can now use positional parameter specifications in format strings
938 for the `printf' and `scanf' families of functions. For example,
939 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
940 ``Number 6, Mr Jones''. This is mainly useful when providing different
941 format strings for different languages, whose grammars may dictate
942 different orderings of the values being printed. To support this
943 feature, the interface for `register_printf_handler' has changed; see
944 the header file <printf.h> for details.
946 * The `printf' and `scanf' families of functions now understand a new
947 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
948 to group numbers as indicated by the locale; for `scanf' and friends, this
949 says to accept as valid only a number with all the proper grouping
950 separators in the right places. In the default "C" locale, numbers are
951 not grouped; but locales for specific countries will define the usual
952 conventions (i.e. separate thousands with `,' in the US locale).
954 * The pgrp functions have been regularized, slightly incompatibly but much
955 less confusingly. The core functions are now `getpgid' and `setpgid',
956 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
957 argument) and BSD `setpgrp' (identical to `setpgid') functions are
958 provided for compatibility. There is no longer an incompatible `getpgrp'
959 with an argument declared under _BSD_SOURCE; no BSD code uses it.
961 * The new header file <fts.h> and suite of functions simplify programs that
962 operate on directory trees. This code comes from 4.4 BSD.
964 * The resolver code has been updated from the BIND 4.9.5-P1 release.
965 Parts of the code were heavily modified by Ulrich Drepper to fit in the
966 NSS scheme used in glibc.
968 * There is a new malloc debugging hook `__memalign_hook'.
970 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
971 `unsigned int' in <sys/types.h>. These are for compatibility only and
972 their use is discouraged.
974 * The `-lmcheck' library to enable standard malloc debugging hooks is now
975 done differently, so that it works even without GNU ld.
977 * New function `euidaccess' checks allowed access to a file like `access',
978 but using the effective IDs instead of the real IDs.
980 * The time zone data files have been updated for the latest and greatest
981 local time conventions of the countries of the world.
983 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
984 see <dirent.h>.
986 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
987 for formatting floating-point numbers. They are provided only for
988 compatibility; new programs should use `sprintf' instead. There are
989 also equivalent function for the `long double' floating-point type and
990 all functions also exist in a reentrant form.
992 * The new auxiliary library `-lutil' from 4.4 BSD contains various
993 functions for maintaining the login-record files (primarily of use to
994 system programs such as `login'), and convenient functions for
995 allocating and initializing a pseudo-terminal (pty) device.
997 * Ulrich Drepper has contributed new support for System V style
998 shared memory and IPC on systems that support it.
1000 * Ulrich Drepper has contributed several miscellaneous new functions found
1001 in System V: The `hsearch' family of functions provide an effective
1002 implementation of hash tables; `a64l' and `l64a' provide a very simple
1003 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1004 number generator.
1006 * Ulrich Drepper has contributed new reentrant counterparts for the
1007 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1009 * Ulrich Drepper has contributed new, highly-optimized versions of several
1010 string functions for the i486/Pentium family of processors.
1012 * Ulrich Drepper has updated the Linux-specific code, based largely
1013 on work done in Hongjiu Lu's version of GNU libc for Linux.
1014 The GNU library now supports Linux versions 2.0.10 and later,
1015 using the ELF object file format (i[3456]86-*-linux).
1017 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1019 * David Mosberger-Tang and Richard Henderson have ported the C library
1020 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
1021 dynamic linking support for ELF/Alpha.
1023 * Richard Henderson contributed several Alpha optimized assembler function
1024 for arithmetic and string handling.
1026 * Ulrich Drepper has contributed a new set of message catalog functions to
1027 support multiple languages using the <libintl.h> interface, for use with
1028 his new package GNU gettext. Translation volunteers have contributed
1029 catalogs of the library's messages in Spanish, German, and Korean.
1031 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1032 program and the `catgets' function for reading the catalog files it
1033 creates. (The <libintl.h> interface is preferred; we include the
1034 <nl_types.h> interface using `catgets' only for source compatibility with
1035 programs already written to use it.)
1037 * New header file <values.h> gives SVID-compatible names for <limits.h>
1038 constants.
1040 * Various new macros, declarations, and small header files for compatibility
1041 with 4.4 BSD.
1043 * New function `group_member' is a convenient way to check if a process has
1044 a given effective group ID.
1046 * When using GCC 2.7 and later, the socket functions are now declared in a
1047 special way so that passing an argument of type `struct sockaddr_in *',
1048 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
1049 `struct sockaddr *' type, does not generate a type-clash warning.
1051 * New function `error' declared in header file <error.h> is a convenient
1052 function for printing error messages and optionally exiting; this is the
1053 canonical function used in GNU programs. The new functions `err', `warn',
1054 and friends in header file <err.h> are the canonical 4.4 BSD interface for
1055 doing the same thing.
1057 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
1058 POSIX.2 `glob' function to do ~ and {...} expansion.
1060 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
1061 `clearenv' which is used in POSIX.9 is also available.
1063 * New function `getsid' returns session ID number on systems that support it.
1065 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
1066 files <db.h> and <mpool.h> provide a rich set of functions for several
1067 types of simple databases stored in memory and in files, and <ndbm.h> is
1068 an old `ndbm'-compatible interface using the `db' functions. Link with
1069 `-ldb' to get these functions.
1071 * New macro `strdupa' copies a string like `strdup', but uses local stack
1072 space from `alloca' instead of dynamic heap space from `malloc'.
1074 * New function `strnlen' is like `strlen' but searches only a given maximum
1075 number of characters for the null terminator. `stpncpy', `strndup' and
1076 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1077 function.
1079 * New function `statfs' in header <sys/statfs.h>.
1081 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1082 provide convenient functions for operating on blocks of null-terminated
1083 strings.
1085 * A new suite of functions in <utmp.h> handle all the details of reading
1086 and writing the utmp file.
1088 * An implementation of the NIS/YP(tm) based NSS service was contributed by
1089 Thorsten Kukuk.
1091 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
1092 completely POSIX compliant and also implemented the extended functionality
1093 to handle alternate digit representation and alternate era date formats.
1095 * Ulrich Drepper provided an implementation of the `strptime' function
1096 defined in XPG4.2 which transforms a string into a `struct tm' value.
1098 * Paul Eggert provided the tzselect shell script as part of the timezone
1099 code. The shell script makes it easy to select the correct timezone
1100 specification.
1102 * The implementation of the malloc family of functions is completely replaced
1103 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
1104 The implementation uses the mmap function (if available) and it is
1105 optimized for the use in multi threaded programs.
1107 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
1108 functions. This new functionality is usable by specifying a special
1109 salt string and it is compatible with implementation on *BSD systems.
1111 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
1112 `getsubopt' to handle second level command line options, `bsd_signal'
1113 to access BSD style `signal' functionality, the obsolete `regexp' style
1114 expression matcher.
1116 * the `lchown' function is available on system which support this
1117 functionality.
1119 * The implementation of the shadow password handling function was contributed
1120 by Ulrich Drepper.
1122 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
1124 * POSIX.1g support was added. The <sys/select.h> header is available,
1125 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
1126 implementation of `getaddrinfo'.
1127 \f
1128 Version 1.09
1130 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
1132 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
1133 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
1135 * The new function `daemon' from 4.4 BSD is useful for server programs that
1136 want to put themselves in the background.
1138 * Joel Sherrill has contributed support for several standalone boards that
1139 run without an operating system.
1141 * `printf', `scanf' and friends now accept a `q' type modifier for long
1142 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
1144 * All of the code taken from BSD (notably most of the math and networking
1145 routines) has been updated from the BSD 4.4-Lite release.
1147 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
1149 * The new functions `getdomainname' and `setdomainname' fetch or change the
1150 YP/NIS domain name. These are system calls which exist on systems which
1151 have YP (aka NIS).
1153 * The time zone data files have been updated for the latest international
1154 conventions.
1156 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
1157 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
1158 \f
1159 Version 1.08
1161 * The C library now includes support for Sun RPC, from Sun's free
1162 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
1163 are included. (There is still no support for YP.)
1165 * Tom Quinn has contributed a port of the C library to SGI machines running
1166 Irix 4 (mips-sgi-irix4).
1168 * The new `lockf' function is a simplified interface to the locking
1169 facilities of `fcntl', included for compatibility.
1171 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
1173 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
1175 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
1176 compatibility.
1178 * The error message printed by `assert' for a failed assertion now includes
1179 the name of the program (if using GNU ld) and the name of the calling
1180 function (with versions of GCC that support this).
1182 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
1184 * The library now includes the <sys/mman.h> header file and memory
1185 management functions `mmap', `munmap', `mprotect', `msync', and
1186 `madvise', on systems that support those facilities.
1188 * The interface for `mcheck' has changed slightly: the function called to
1189 abort the program when an allocation inconsistency is detected now takes
1190 an argument that indicates the type of failure. The new function
1191 `mprobe' lets you request a consistency check for a particular block at
1192 any time (checks are normally done only when you call `free' or `realloc'
1193 on a block).
1195 * It is now possible to easily cross-compile the C library, building on one
1196 system a library to run on another machine and/or operating system. All
1197 you need to do is set the variable `HOST_CC' in `configparms' to the
1198 native compiler for programs to run on the machine you are building on (a
1199 few generator programs are used on Unix systems); set `CC' to the
1200 cross-compiler.
1202 * The new function `fexecve' (only implemented on the GNU system) executes
1203 a program file given a file descriptor already open on the file.
1204 \f
1205 Version 1.07
1207 * Brendan Kehoe has contributed most of a port to the DEC Alpha
1208 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
1210 * You can set the variable `libprefix' in `configparms' to specify a prefix
1211 to be prepended to installed library files; this makes it easy to install
1212 the GNU C library to be linked as `-lgnuc' or whatever.
1214 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
1215 copies a limited number of characters from a string, and returns the
1216 address of the last character written.
1218 * You no longer need to check for whether the installed `stddef.h' is
1219 compatible with the GNU C library. configure now checks for you.
1221 * You can now define a per-stream `fileno' function to convert the
1222 stream's cookie into an integral file descriptor.
1224 * ``malloc (0)'' no longer returns a null pointer. Instead, it
1225 allocates zero bytes of storage, and returns a unique pointer which
1226 you can pass to `realloc' or `free'. The behavior is undefined if
1227 you dereference this pointer.
1229 * The C library now runs on Sony NEWS m68k machines running either
1230 NewsOS 3 or NewsOS 4.
1232 * The new `syscall' function is a system-dependent primitive function
1233 for invoking system calls. It has the canonical behavior on Unix
1234 systems, including unreliable return values for some calls (such as
1235 `pipe', `fork' and `getppid').
1237 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
1238 to `EAGAIN', which is the preferred name. On systems whose kernels
1239 use two distinct codes, the C library now translates EWOULDBLOCK to
1240 EAGAIN in every system call function.
1241 \f
1242 Version 1.06
1244 * The GNU C Library Reference Manual is now distributed with the library.
1245 `make dvi' will produce a DVI file of the printed manual.
1246 `make info' will produce Info files that you can read on line using C-h i
1247 in Emacs or the `info' program.
1248 Please send comments on the manual to bug-glibc-manual@gnu.org.
1250 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
1252 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
1254 * Jason Merrill has contributed a port to the Sequent Symmetry running
1255 Dynix version 3 (i386-sequent-dynix).
1257 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
1258 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
1260 * New function `memory_warnings' lets you arrange to get warnings when
1261 malloc is running out of memory to allocate, like Emacs gives you.
1263 * The C library now contains the relocating allocator used in Emacs 19 for
1264 its editing buffers. This allocator (ralloc) minimizes allocation
1265 overhead and fragmentation by moving allocated regions around whenever it
1266 needs to. You always refer to a ralloc'd region with a "handle" (a
1267 pointer to a pointer--an object of type `void **').
1269 * There is a new `printf' format: `%m' gives you the string corresponding
1270 to the error code in `errno'.
1272 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
1273 or `%[' conversion, but instead of filling in a fixed-sized buffer you
1274 pass, the `a' modifier says to fill in a `char **' you pass with a
1275 malloc'd string.
1277 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
1278 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
1279 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
1281 * `mkstemp' is a traditional Unix function to atomically create and open a
1282 uniquely-named temporary file.
1283 \f
1284 Version 1.05
1286 * The standard location for the file that says what the local timezone is
1287 has changed again. It is now `/usr/local/etc/localtime' (or more
1288 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
1290 * The distribution no longer contains any files with names longer than 14
1291 characters.
1293 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
1294 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
1296 * New functions `ttyslot' and `syslog' from 4.4 BSD.
1297 \f
1298 Version 1.04
1300 * The configuration process has changed quite a bit. The `configure'
1301 script is now used just like the configuration scripts for other GNU
1302 packages. The `sysdeps' directory hierarchy is much rearranged.
1303 The file `INSTALL' explains the new scheme in detail.
1305 * The header files no longer need to be processed into ANSI C and
1306 traditional C versions. There is just one set of files to install, and
1307 it will work with ANSI or old C compilers (including `gcc -traditional').
1309 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
1310 MIPS DECStation running Ultrix 4.
1312 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
1313 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
1314 made itself into a shared library.
1316 * Yet further improved support for the i386, running 4.3 BSD-like systems
1317 (such as Mach 3 with the Unix single-server), or System V.
1319 * New function `strncasecmp' to do case-insensitive string comparison
1320 with limited length.
1322 * New function `strsep' is a reentrant alternative to `strtok'.
1324 * New functions `scandir' and `alphasort' for searching directories.
1326 * New function `setenv' is a better interface to `putenv'.
1328 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
1329 function for traversing a directory tree.
1331 * The GNU obstack package is now also part of the C library.
1332 The new function `open_obstack_stream' creates a stdio stream that
1333 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
1334 formatted output directly to an obstack.
1336 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
1337 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
1339 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
1341 * The new functions `strfry' and `memfrob' do mysterious and wonderful
1342 things to your strings.
1344 * There are some new test programs: test-fseek, testmb, and testrand.
1346 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
1347 These ports are not finished, but are a good starting place for really
1348 supporting those systems.
1350 * `/etc/localtime' is now the standard location for the file that says what
1351 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
1352 This follows the general principle that `/etc' is the place for all local
1353 configuration files.
1355 * The C library header files now use `extern "C"' when used by the C++
1356 compiler, so the C library should now work with C++ code.
1358 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
1359 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
1360 in <strings.h>.)
1362 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
1363 function which uses the `merge sort' algorithm, and is said to be
1364 significantly faster than the old GNU `qsort' function. Merge sort is
1365 now the standard `qsort' function. The new algorithm can require a lot
1366 of temporary storage; so, the old sorting function is called when the
1367 required storage is not available.
1369 * The C library now includes Michael Glad's Ultra Fast Crypt, which
1370 provides the Unix `crypt' function, plus some other entry points.
1372 * The code and header files taken from 4.4 BSD have been updated with the
1373 latest files released from Berkeley.
1374 \f
1375 ----------------------------------------------------------------------
1376 Copyright information:
1378 Copyright (C) 1992-1999,2000,01,02 Free Software Foundation, Inc.
1380 Permission is granted to anyone to make or distribute verbatim copies
1381 of this document as received, in any medium, provided that the
1382 copyright notice and this permission notice are preserved,
1383 thus giving the recipient permission to redistribute in turn.
1385 Permission is granted to distribute modified versions
1386 of this document, or of portions of it,
1387 under the above conditions, provided also that they
1388 carry prominent notices stating who last changed them.
1389 \f
1390 Local variables:
1391 version-control: never
1392 End: