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