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