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