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1 GNU C Library NEWS -- history of user-visible changes. 2002-10-13
2 Copyright (C) 1992-2001, 2002 Free Software Foundation, Inc.
3 See the end for copying conditions.
5 Please send GNU C library bug reports using the `glibcbug' script to
6 <bugs@gnu.org>. Please send questions and suggestions to <bug-glibc@gnu.org>.
7 \f
8 Version 2.3.2
10 * The functions getresuid, getresgid, setresuid, and setresgid, which
11 have long been available on Linux, are now declared in <unistd.h>
12 and are now also available on the Hurd.
14 * ELF thread-local storage support (TLS) now works on x86-64.
15 \f
16 Version 2.3
18 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
19 charsets.
21 * iconv (the program and the interface) now accepts empty names (excluding
22 options like //TRANSLIT) to mean "use charset of current locale".
24 * localedef can now transliterate characters in strings which are not in
25 the provided charmap. The information from the input locale is used.
27 * Prelinking support was added for ELF targets. This requires additional
28 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
30 * Read-only stdio streams now use mmap to speed up operation by eliminating
31 copying and buffer underflows. To use add 'm' to the mode string of
32 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
34 * The malloc functions were completely rewritten by Wolfram Gloger based
35 on Doug Lea's malloc-2.7.0.c.
37 * Isamu Hasegawa contributed a completely new and POSIX-conformant
38 implementation of regex.
40 * Bruno Haible upgraded the iconv and locale implementation to support
41 Unicode 3.2.
43 * Contents of the LC_* and LANG environment variables in the CEN style are
44 not recognized anymore. It never was used. Change by Ulrich Drepper.
46 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
47 thread-local storage (TLS) ABI on some platforms.
48 Changes by Ulrich Drepper. SH support by Kaz Kojima.
50 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
51 EUC-JISX0213, and TISCII.
53 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
54 BSD-compatible interface for getting all network interface addresses.
55 Implementation for IPv4 by Roland McGrath.
57 * Loading of locale data is faster due to the introduction of a locale
58 archive. Implemented by Roland McGrath and Ulrich Drepper.
60 * Startup times are significantly reduced by not using exported functions
61 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
62 and Ulrich Drepper.
64 * Steven Munroe contributed a port to PowerPC64/Linux.
65 \f
66 Version 2.2.6
68 * The Hurd now uses the GNU libio implementation of stdio rather than the
69 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
71 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
72 with the same behavior as the Linux system call of the same name.
73 \f
74 Version 2.2.5
76 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
77 128-bit long double format.
79 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
80 IBM1161, and IBM1162 charsets.
82 * Andreas Jaeger contributed a port to x86-64/Linux.
84 * Peter Bruin contributed a port to PowerPC/Hurd.
86 * libc functions using I/O streams now can handle wide-oriented streams
87 as well.
89 * optimizations in the dynamic linker. Binaries created by recent binutils
90 versions start up quicker due to reduced time spent on relocations.
92 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
93 \f
94 Version 2.2.4
96 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
97 asinh, atanh, j0 for the 128-bit long double format.
99 * Bruno Haible updated all the code handling Unicode in some form to
100 support Unicode 3.1.
102 * Speed of regex for single-byte locales is back to previous levels.
103 Patch by Isamu Hasegawa.
105 * Alpha, SPARC, and IA-64 now also using floating stacks.
107 * Startup time of internationalized applications greatly improved through
108 iconv cache. Use iconvconfig to generate the cache file.
109 Contributed by Ulrich Drepper.
111 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
112 severe performance problems. Patch by David Mosberger.
114 * The Hurd port got a lot more functionality like AIO, various stdio
115 extensions, etc. Mainly done by Roland McGrath.
117 * mtrace can now lookup symbols in shared libraries.
118 \f
119 Version 2.2.3
121 * Intel's IA-64 math library is largely integrated. It provides fast and
122 accurate implementatations for most basic and standard math functions
123 in float, double, and long double format.
125 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
126 and asin for the 96-bit long double format and asin, log, tan for the
127 128-bit long double format.
129 * The beginning of a last-bit accurate math library by IBM Haifa were added.
130 The basic double functions exist today. Contributed by Abraham Ziv
131 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
132 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
134 * An asynchronous name lookup library was added. The interface is designed
135 after POSIX AIO. The proposal was circulated beforehand to get comments.
136 No negative ones came in. Implemented by Ulrich Drepper.
138 * Port to S390/64bit contributed by Martin Schwidefsky
139 <schwidefsky@de.ibm.com>.
141 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
142 of functions for Linux/IA-64.
144 * The RPC code is now thread safe. Threads can now use the same service
145 of different services at the same time. Patch by Eric Norum
146 <eric.norum@usask.ca> with some help by Ulrich Drepper.
148 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
149 family of functions for Linux/S390.
151 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
152 of functions for Linux/x86.
154 * Port to Linux/CRIS contributed by Axis Communications.
155 \f
156 Version 2.2.2
158 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
159 we can now check for namespace violations and missing declarations. The
160 result is that almost all headers are now Unix-compliant (as defined in
161 the upcoming XPG6). The negative side is that some programs might need
162 corrections, too, if they depend on the incorrect form of the headers in
163 previous versions which defined too many symbols and included too many
164 other headers.
166 * regex now handles multibyte character sets correctly.
167 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
169 * iconv (the program) does now conform to the upcoming XPG6 and handles
170 charmaps. Instead of the charset names the path of charmaps can be
171 provided and the conversion happens based on this data.
172 Contributed by Ulrich Drepper.
174 * The locale program now provides detailed information about the installed
175 locales. While
177 locale -a
179 only lists the names of the supported locales
181 locale -a --verbose
183 provides details such as country, language, and codeset name.
184 Contributed by Ulrich Drepper.
185 \f
186 Version 2.2.1
188 * The gencat program now parses the input file according to the charset
189 selected by the LC_CTYPE category. This is important for stateful
190 character sets. To make generating catalogs easier there is a way
191 to overwrite the charset selected by the locale: before the first
192 message or $ quote line the catalog can contain a line like
194 $ codeset=ISO-8859-2
196 to select the charset (ISO-8859-2 in this case).
198 Implemented by Shinya Hanataka and Ulrich Drepper.
200 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
201 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
202 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
204 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
205 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
207 * The LANGUAGE environment variable is now ignored unless the locale is
208 changed from the default "C" locale.
210 * The usual bug fixes.
211 \f
212 Version 2.2
214 * Greg McGary added runtime support for bounds checking using gcc's
215 new -fbounded-pointers option. ix86 target is complete. PowerPC
216 is in progress.
218 * Thorsten Kukuk added secure mode support to nscd.
220 * The Berkeley db libraries have been removed.
222 Related, the nss_db module is now in a separate package since it
223 obviously requires a database library being available.
225 * Wide character I/O streams implemented by Ulrich Drepper.
227 * Functions from the extended socket API added by Ulrich Drepper.
229 * Functions feenableexcept and fedisableexcept to control the
230 behaviour of individual exceptions have been added by Andreas Jaeger.
232 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
234 * The resolver code has been updated from bind 8.2.3-T5B which supports
235 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
236 and Mark Kettenis.
238 This change could in some situations effect backward compatibility. Since
239 now `_res' is a thread-local instead of a global variable, modifying it
240 in one thread does not have any effect in other threads.
242 The resolver library was also extended to allow IPv6 as the transport
243 protocol for the requests. This work was done by Stig Venaas.
245 * Compatibility code for K&R C compilers has been removed from the
246 header files. A ISO C compiler is needed to use the library
247 (conforming to either C89 or C99 standard).
249 * Complete rewrite of the localedef program to support multibyte character
250 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
251 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
252 Implemented by Ulrich Drepper.
254 Bruno Haible significantly improved the generation and use of the data
255 structures for the wide character tables.
257 * Plural handling in gettext implemented by Ulrich Drepper.
259 * The utmp daemon has been removed.
261 * The port to MIPS-Linux has been finished by Andreas Jaeger.
263 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
264 and Yutaka Niibe.
266 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
268 * POSIX barriers implemented by Kaz Kylheku.
270 * POSIX spawn function family implemented by Ulrich Drepper.
272 * POSIX spinlocks are now available.
274 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
276 * the configure option --enable-kernel=X.Y.Z allows to strip out
277 compatibility for kernel versions before X.Y.Z. This is currently only
278 implemented for Linux.
280 * the sockaddr_in6 structure changed. The IPv6 working group added a new
281 field sin6_scope_id. This means that all programs using IPv6 should be
282 recompiled. Don't expect binary compatibility with previous glibc
283 versions.
285 * various conversion modules for IBM character sets contributed by
286 Masahide Washizawa.
288 * IA-64 port by Jes Sorensen and HJ Lu.
290 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
291 Compiling the GNU C Library for Linux/ia64
292 ******************************************
294 Please refer to the file INSTALL in the same directory as you found
295 this file for general information about configuring and compiling
296 glibc.
298 For general inquiries about glibc under Linux/ia64 please use the
299 following mailing list linux-ia64@linuxia64.org or one of the relevant
300 glibc mailing lists.
302 Recommended Tools for Compilation
303 =================================
305 In order for glibc-2.2 to build correctly on the ia64 you need at
306 least the following versions of the GNU tools (the :
308 * The Cygnus toolchain snapshot for the ia64 as of August 4
309 including the provided set of patches. It is however recommend
310 you use the October 24 toolchain snapshot or a more recent version.
312 OR alternatively you can try the following (the Cygnus toolchain is
313 the recommended solution):
315 * GCC and binutils, GAS and GNU LD out of CVS from
316 sources.redhat.com as of August 28, 2000 or later. The CVS tree
317 may require special patches to work properly on the ia64.
319 Configuring and compiling GNU Libc for Linux/ia64
320 =================================================
322 The library requires Linux kernel version 2.4.0-test4-000728 or
323 later to funtion properly. Besides that it support for debug libraries
324 is currently untested. Hence the following options
325 are required for configuring the library:
327 --disable-debug --enable-kernel=2.4.0
329 It is also important that you make sure the library picks up the
330 appropriate kernel header files, if you do not have recent enough
331 kernel headers in /usr/src/linux/include, you should use the
332 --with-headers=<path> option to specify the location.
334 As an example I personally use the following options to configure
335 the library:
337 --disable-debug
338 --disable-cvs
339 --enable-kernel=2.4.0
340 --host=ia64-linux
341 --enable-add-ons=yes
342 --prefix=/usr
343 --with-headers=/home/jes/linux/include
346 Good luck
348 Jes Sorensen <jes@linuxcare.com>,
349 November 14th, 2000
350 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
351 \f
352 Version 2.1.3
354 * bug fixes
356 \f
357 Version 2.1.2
359 * bug fixes
361 \f
362 Version 2.1.1
364 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
366 * New xdr functions are added; some rpc functions are now 64bit clean.
368 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
370 * Fixed known incompatibilities with glibc 2.0.
372 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
374 * Optimized a number of functions (especially the ELF dynamic loader).
376 * Update timezone data files.
378 * lots of charmaps corrections
380 * some new locale definitions and charmaps
382 \f
383 Version 2.1
385 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
386 conform to POSIX member type requirements. Symbol versions have been
387 adjusted as needed within the library, and for direct use by applications,
388 but there is potential for problems if third-party libraries use
389 struct timeval as part of their interface. This does not present
390 a problem for X and other "essential" system libraries.
392 * An additional locale model to support C++ Standard Library locale
393 model and probably more was implemented by Ulrich Drepper.
395 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
396 symbol level.
398 * Miles Bader provided the `argp' function family to support hierachical
399 command line argument parsing, layered on top of getopt.
401 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
403 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
404 numbers.
406 * scanf recognizes the %a and %A format for scanning floating point numbers.
408 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
409 information and interfaces for the available integer types.
411 * about 130 new math functions were added to implement the ISO C9x math
412 library.
414 * the new header <complex.h> contains definitions of the complex math
415 functions from ISO C 9X.
417 * the new header <tgmath.h> defines generic macros to use complex or
418 real valued functions.
420 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
422 * Andreas Jaeger provided a test suite for the math library.
424 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
426 * Ulrich Drepper added character set conversion functions (iconv).
428 * Optimized string functions have been added.
430 * The localedata addon is now part of glibc.
432 * An implementation of profiling shared libraries was added by Ulrich Drepper.
434 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
435 daemon for NSS (nscd).
437 Missing a better place here are some numbers on improvements. Under
438 Linux 2.1.125 un-tar-ing the kernel sources takes
440 user system wall
442 using local files 12.19s 6.88s 22.91s
444 using NIS 13.92s 8.91s 26.34s
446 using NIS & nscd 10.37s 7.34s 25.30s
448 using NIS+ 27.57s 30.37s 640.46s
450 using NIS+ & nscd 10.25s 7.83s 26.51s
452 using NIS & old nscd [1] 13.83s 8.32s 29.60s
454 Keep in mind that non-namelookup related operations dominate above times.
455 It was just a common complain that using NIS+ unpacking the kernel is
456 horribly slow.
458 [1] The old nscd implementation is not available anymore since it was
459 distributed with glibc up to version 2.0.98 and thus is now replaced.
461 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
463 * Mark Kettenis provided a Hesiod NSS module.
465 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
466 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
468 * rcmd can now handle netgroups (Dick Streefland).
470 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
471 Bambrough.
473 * Support for the IPv6 protocol has been added to the socket API, as per the
474 latest draft standards.
476 * Support for Linux 2.2 has been added.
478 * Interface changes relative to the latest 2.0.x release:
479 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
480 addseverity NEW: Unix98
481 alphasort64 NEW: LFS
482 argp_err_exit_status NEW: argp, GNU ext
483 argp_error NEW: argp, GNU ext
484 argp_failure NEW: argp, GNU ext
485 argp_help NEW: argp, GNU ext
486 argp_parse NEW: argp, GNU ext
487 argp_program_bug_address NEW: argp, GNU ext
488 argp_program_version NEW: argp, GNU ext
489 argp_program_version_hook NEW: argp, GNU ext
490 argp_state_help NEW: argp, GNU ext
491 argp_usage NEW: argp, GNU ext
492 authdes_create NEW: Secure RPC
493 authdes_getucred NEW: Secure RPC
494 authdes_pk_create NEW: Secure RPC
495 backtrace NEW: GNU ext.
496 backtrace_symbols NEW: GNU ext.
497 backtrace_symbols_fd NEW: GNU ext.
498 cacos NEW: ISO C 9x
499 cacosf NEW: ISO C 9x
500 cacosh NEW: ISO C 9x
501 cacoshf NEW: ISO C 9x
502 cacoshl NEW: ISO C 9x
503 cacosl NEW: ISO C 9x
504 capget NEW: kernel
505 capset NEW: kernel
506 carg NEW: ISO C 9x
507 cargf NEW: ISO C 9x
508 cargl NEW: ISO C 9x
509 casin NEW: ISO C 9x
510 casinf NEW: ISO C 9x
511 casinh NEW: ISO C 9x
512 casinhf NEW: ISO C 9x
513 casinhl NEW: ISO C 9x
514 casinl NEW: ISO C 9x
515 catan NEW: ISO C 9x
516 catanf NEW: ISO C 9x
517 catanh NEW: ISO C 9x
518 catanhf NEW: ISO C 9x
519 catanhl NEW: ISO C 9x
520 catanl NEW: ISO C 9x
521 cbc_crypt NEW: Secure RPC
522 ccos NEW: ISO C 9x
523 ccosf NEW: ISO C 9x
524 ccosh NEW: ISO C 9x
525 ccoshf NEW: ISO C 9x
526 ccoshl NEW: ISO C 9x
527 ccosl NEW: ISO C 9x
528 cexp NEW: ISO C 9x
529 cexpf NEW: ISO C 9x
530 cexpl NEW: ISO C 9x
531 cimag NEW: ISO C 9x
532 cimagf NEW: ISO C 9x
533 cimagl NEW: ISO C 9x
534 clearerr_locked REMOVED
535 clntunix_create NEW: sunrpc ext
536 clog NEW: ISO C 9x
537 clog10 NEW: ISO C 9x
538 clog10f NEW: ISO C 9x
539 clog10l NEW: ISO C 9x
540 clogf NEW: ISO C 9x
541 clogl NEW: ISO C 9x
542 conj NEW: ISO C 9x
543 conjf NEW: ISO C 9x
544 conjl NEW: ISO C 9x
545 cpow NEW: ISO C 9x
546 cpowf NEW: ISO C 9x
547 cpowl NEW: ISO C 9x
548 cproj NEW: ISO C 9x
549 cprojf NEW: ISO C 9x
550 cprojl NEW: ISO C 9x
551 creal NEW: ISO C 9x
552 crealf NEW: ISO C 9x
553 creall NEW: ISO C 9x
554 creat64 NEW: LFS
555 csin NEW: ISO C 9x
556 csinf NEW: ISO C 9x
557 csinh NEW: ISO C 9x
558 csinhf NEW: ISO C 9x
559 csinhl NEW: ISO C 9x
560 csinl NEW: ISO C 9x
561 csqrt NEW: ISO C 9x
562 csqrtf NEW: ISO C 9x
563 csqrtl NEW: ISO C 9x
564 ctan NEW: ISO C 9x
565 ctanf NEW: ISO C 9x
566 ctanh NEW: ISO C 9x
567 ctanhf NEW: ISO C 9x
568 ctanhl NEW: ISO C 9x
569 ctanl NEW: ISO C 9x
570 des_setparity NEW: Secure RPC
571 ecb_crypt NEW: Secure RPC
572 endutxent NEW: Unix98
573 exp10 NEW: ISO C 9x
574 exp10f NEW: ISO C 9x
575 exp10l NEW: ISO C 9x
576 exp2 NEW: ISO C 9x
577 exp2f NEW: ISO C 9x
578 exp2l NEW: ISO C 9x
579 fattach NEW: STREAMS
580 fdetach NEW: STREAMS
581 fdim NEW: ISO C 9x
582 fdimf NEW: ISO C 9x
583 fdiml NEW: ISO C 9x
584 feclearexcept NEW: ISO C 9x
585 fegetenv NEW: ISO C 9x
586 fegetexceptflag NEW: ISO C 9x
587 fegetround NEW: ISO C 9x
588 feholdexcept NEW: ISO C 9x
589 feof_locked REMOVED
590 feraiseexcept NEW: ISO C 9x
591 ferror_locked REMOVED
592 fesetenv NEW: ISO C 9x
593 fesetexceptflag NEW: ISO C 9x
594 fesetround NEW: ISO C 9x
595 fetestexcept NEW: ISO C 9x
596 feupdateenv NEW: ISO C 9x
597 fflush_locked REMOVED
598 ffsl NEW: GNU ext.
599 ffsll NEW: GNU ext.
600 fgetpos64 NEW: LFS
601 fgets_unlocked NEW: GNU ext.
602 fileno_locked REMOVED
603 fma NEW: ISO C 9x
604 fmaf NEW: ISO C 9x
605 fmal NEW: ISO C 9x
606 fmax NEW: ISO C 9x
607 fmaxf NEW: ISO C 9x
608 fmaxl NEW: ISO C 9x
609 fmin NEW: ISO C 9x
610 fminf NEW: ISO C 9x
611 fminl NEW: ISO C 9x
612 fmtmsg NEW: Unix98
613 fopen64 NEW: LFS
614 fputc_locked REMOVED
615 fputs_unlocked NEW: GNU ext.
616 fread_unlocked NEW: GNU ext.
617 freopen64 NEW: LFS
618 fseeko NEW: Unix98
619 fsetpos64 NEW: LFS
620 fstatfs64 NEW: LFS
621 fstatvfs NEW: Unix98
622 fstatvfs64 NEW: LFS
623 ftello NEW: Unix98
624 ftello64 NEW: LFS
625 ftruncate64 NEW: LFS
626 ftw64 NEW: LFS
627 fwrite_unlocked NEW: GNU ext.
628 gai_strerror NEW: IPv6
629 gamma_r REMOVED
630 gammaf_r REMOVED
631 gammal_r REMOVED
632 getchar_locked REMOVED
633 getdate NEW: Unix98
634 getdate_err NEW: Unix98
635 getdate_r NEW: GNU ext.
636 getmsg NEW: STREAMS
637 getnameinfo NEW: IPv6
638 getnetname NEW: Secure RPC
639 getpmsg NEW: STREAMS
640 getpt NEW: Unix98 PTY
641 getrlimit64 NEW: LFS
642 getutxent NEW: Unix98
643 getutxid NEW: Unix98
644 getutxline NEW: Unix98
645 glob64 NEW: GNU ext.
646 globfree64 NEW: GNU ext.
647 gnu_get_libc_release NEW: GNU ext.
648 gnu_get_libc_version NEW: GNU ext.
649 grantpt NEW: Unix98 PTY
650 host2netname NEW: Secure RPC
651 iconv NEW: iconv
652 iconv_close NEW: iconv
653 iconv_open NEW: iconv
654 if_freenameindex NEW: IPv6
655 if_indextoname NEW: IPv6
656 if_nameindex NEW: IPv6
657 if_nametoindex NEW: IPv6
658 in6addr_any NEW: IPv6
659 in6addr_loopback NEW: IPv6
660 inet6_isipv4mapped NEW: IPv6
661 isastream NEW: STREAMS
662 iswblank NEW: GNU ext.
663 key_decryptsession NEW: Secure RPC
664 key_decryptsession_pk NEW: Secure RPC
665 key_encryptsession NEW: Secure RPC
666 key_encryptsession_pk NEW: Secure RPC
667 key_gendes NEW: Secure RPC
668 key_get_conv NEW: Secure RPC
669 key_secretkey_is_set NEW: Secure RPC
670 key_setnet NEW: Secure RPC
671 key_setsecret NEW: Secure RPC
672 llrint NEW: ISO C 9x
673 llrintf NEW: ISO C 9x
674 llrintl NEW: ISO C 9x
675 llround NEW: ISO C 9x
676 llroundf NEW: ISO C 9x
677 llroundl NEW: ISO C 9x
678 log2 NEW: ISO C 9x
679 log2f NEW: ISO C 9x
680 log2l NEW: ISO C 9x
681 lrint NEW: ISO C 9x
682 lrintf NEW: ISO C 9x
683 lrintl NEW: ISO C 9x
684 lround NEW: ISO C 9x
685 lroundf NEW: ISO C 9x
686 lroundl NEW: ISO C 9x
687 lseek64 NEW: LFS
688 makecontext NEW: Unix98
689 mempcpy NEW: GNU ext.
690 mmap64 NEW: LFS
691 moncontrol REMOVED
692 modify_ldt NEW: kernel
693 nan NEW: ISO C 9x
694 nanf NEW: ISO C 9x
695 nanl NEW: ISO C 9x
696 nearbyint NEW: ISO C 9x
697 nearbyintf NEW: ISO C 9x
698 nearbyintl NEW: ISO C 9x
699 netname2host NEW: Secure RPC
700 netname2user NEW: Secure RPC
701 nexttoward NEW: ISO C 9x
702 nexttowardf NEW: ISO C 9x
703 nexttowardl NEW: ISO C 9x
704 nftw NEW: Unix98
705 nftw64 NEW: LFS
706 open64 NEW: LFS
707 passwd2des NEW: Secure RPC
708 pow10 NEW: GNU ext.
709 pow10f NEW: GNU ext.
710 pow10l NEW: GNU ext.
711 pread NEW: Unix98
712 pread64 NEW: LFS
713 printf_size NEW: GNU ext.
714 printf_size_info NEW: GNU ext.
715 profil_counter REMOVED
716 pthread_mutexattr_getkind_np REPLACED
717 pthread_mutexattr_setkind_np REPLACED
718 ptsname NEW: Unix98 PTY
719 ptsname_r NEW: Unix98 PTY
720 putc_locked REMOVED
721 putchar_locked REMOVED
722 putgrent NEW: GNU ext.
723 putmsg NEW: STREAMS
724 putpmsg NEW: STREAMS
725 pututxline NEW: Unix98
726 pwrite NEW: Unix98
727 pwrite64 NEW: LFS
728 readdir64 NEW: LFS
729 readdir64_r NEW: LFS
730 remquo NEW: ISO C 9x
731 remquof NEW: ISO C 9x
732 remquol NEW: ISO C 9x
733 round NEW: ISO C 9x
734 roundf NEW: ISO C 9x
735 roundl NEW: ISO C 9x
736 rtime NEW: GNU ext.
737 scalbln NEW: ISO C 9x
738 scalblnf NEW: ISO C 9x
739 scalblnl NEW: ISO C 9x
740 scandir64 NEW: LFS
741 sendfile NEW: kernel
742 setcontext NEW: Unix98
743 setrlimit64 NEW: LFS
744 setutxent NEW: Unix98
745 sighold NEW: Unix98
746 sigignore NEW: Unix98
747 sigqueue NEW: POSIX.1b
748 sigrelse NEW: Unix98
749 sigset NEW: POSIX.1b
750 sigtimedwait NEW: POSIX.1b
751 sigwaitinfo NEW: POSIX.1b
752 sincos NEW: GNU ext.
753 sincosf NEW: GNU ext.
754 sincosl NEW: GNU ext.
755 statfs64 NEW: LFS
756 statvfs NEW: Unix98
757 statvfs64 NEW: LFS
758 strcasestr NEW: GNU ext.
759 strtoimax NEW: ISO C 9x
760 strtoumax NEW: ISO C 9x
761 strverscmp NEW: GNU ext.
762 svcauthdes_stats NEW: Secure RPC
763 svcunix_create NEW: sunrpc etx
764 svcunixfd_create NEW: sunrpc ext
765 swapcontext NEW: Unix98
766 tcgetsid NEW: Unix98 PTY
767 tdestroy NEW: GNU ext.
768 tgamma NEW: ISO C 9x
769 tgammaf NEW: ISO C 9x
770 tgammal NEW: ISO C 9x
771 tmpfile64 NEW: LFS
772 trunc NEW: ISO C 9x
773 truncate64 NEW: LFS
774 truncf NEW: ISO C 9x
775 truncl NEW: ISO C 9x
776 umount2 NEW: kernel
777 unlockpt NEW: Unix98 PTY
778 updwtmpx NEW: Unix98
779 user2netname NEW: Secure RPC
780 utmpxname NEW: Unix98
781 versionsort NEW: GNU ext.
782 versionsort64 NEW: GNU ext.
783 waitid NEW: Unix98
784 wcscasecmp NEW: GNU ext.
785 wcsncasecmp NEW: GNU ext.
786 wcsnlen NEW: GNU ext.
787 wcstoimax NEW: ISO C 9x
788 wcstoll NEW: ISO C 9x
789 wcstoull NEW: ISO C 9x
790 wcstoumax NEW: ISO C 9x
791 wcswcs NEW: Unix98
792 wordexp NEW: POSIX.2
793 wordfree NEW: POSIX.2
794 write_profiling REMOVED
795 xdecrypt NEW: Secure RPC
796 xdr_authdes_cred NEW: Secure RPC
797 xdr_authdes_verf NEW: Secure RPC
798 xdr_cryptkeyarg NEW: Secure RPC
799 xdr_cryptkeyarg2 NEW: Secure RPC
800 xdr_cryptkeyres NEW: Secure RPC
801 xdr_getcredres NEW: Secure RPC
802 xdr_key_netstarg NEW: Secure RPC
803 xdr_key_netstres NEW: Secure RPC
804 xdr_keybuf NEW: Secure RPC
805 xdr_keystatus NEW: Secure RPC
806 xdr_netnamestr NEW: Secure RPC
807 xdr_sizeof NEW: Secure RPC
808 xdr_unixcred NEW: sunrpc ext
809 xencrypt NEW: Secure RPC
810 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
811 \f
812 Version 2.0.6
814 * more bug fixes
816 \f
817 Version 2.0.5
819 * more bug fixes
821 * inet_ntoa is thread-safe
823 * updwtmp is moved from libutil to libc
825 * rewrite of cbrt function
827 * update of timezone data
828 \f
829 Version 2.0.4
831 * more bug fixes
832 \f
833 Version 2.0.3
835 * more bug fixes
836 \f
837 Version 2.0.2
839 * more bug fixes
841 * add atoll function
843 * fix complex problems in Berkeley DB code
845 * fix math functions
846 \f
847 Version 2.0.1
849 * fixed lots of header problems (especially Linux/GNU specific)
851 * dynamic loader preserves all registers
853 * Roland McGrath provided support for handling of auxiliary objects in
854 the ELF dynamic loader.
856 * support for parallel builds is improved
857 \f
858 Version 2.0
860 * GNU extensions are no longer declared by default. To enable them you
861 must define the macro `_GNU_SOURCE' in your program or compile with
862 `-D_GNU_SOURCE'.
864 * The library has changed from using GNU ld symbol aliases to using weak
865 symbols where available. The ELF object file format supports weak
866 symbols; GNU ld also supports weak symbols in the a.out format. (There
867 is also now support for other GNU ld extensions in ELF. Use the
868 `--with-elf' option to configure to indicate you have ELF, and
869 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
870 of many files which contained only symbol aliases, reducing the size of
871 the source and the compiled library; many other files were renamed to
872 less cryptic names previously occupied by the symbol alias files.
873 There is a new header file <elf.h> for programs which operate on
874 files in the ELF format.
876 * Converted to Autoconf version 2, so `configure' has more options.
877 Run `configure --help' to see the details.
879 * The library can now be configured to build profiling, highly-optimized
880 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
881 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
882 `configure' enable building these extra libraries. The shared library is
883 built by default when using both ELF and GNU ld. When shared libraries
884 are enabled, the new library `-ldl' is available for arbitrary run-time
885 loading of shared objects; its interface is defined in <dlfcn.h>. The
886 new header file <link.h> gives access to the internals of the run-time
887 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
888 application of same name on other systems and it provides information
889 about dynamically linked binaries.
891 * The C library now provides the run-time support code for profiling
892 executables compiled with `-pg'. Programs can control the profiling code
893 through the interface in <sys/gmon.h>. The `gmon.out' files written by
894 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
895 the support for this file format was contributed by David Mosberger-Tang.
897 * The math code has been replaced with a math library based on fdlibm from
898 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
899 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
900 functions. The math functions now reside in a separate library, so
901 programs using them will need to use `-lm' their linking commands.
903 * John C. Bowman contributed optimized ix87 assembler inline functions.
905 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
906 mechanism similar to that found in Solaris 2. This is now used for the
907 group, passwd, hosts, networks, services, protocols, rpc, ethers,
908 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
909 file controls what services are used for each individual database. This
910 works by loading shared libraries with names specified in `nsswitch.conf',
911 so service modules can be changed or added at any time without even
912 relinking any program. Currently there are the file, db, and NIS based
913 NSS services available.
915 * The new functions `strtoq' and `strtouq' parse integer values from
916 strings, like `strtol' and `strtoul', but they return `long long int' and
917 `unsigned long long int' values, respectively (64-bit quantities).
919 * The new functions `strtof' and `strtold' parse floating-point values from
920 strings, like `strtod', but they return `float' and `long double' values,
921 respectively (on some machines `double' and `long double' are the same).
923 * Ulrich Drepper has contributed new implementations of the floating-point
924 printing and reading code used in the `printf' family of functions and
925 `strtod', `strtof', and `strtold'. These new functions are perfectly
926 accurate, and much faster than the old ones.
928 * The implementation of the POSIX locale model was completely rewritten by
929 Ulrich Drepper. This includes the new programs `localedef' and `locale'
930 to compile the POSIX locale definition.
932 * The former dummy implementations of the strcoll and strxfrm function are
933 now replaced by fully functional code contributed by Ulrich Drepper. The
934 collation information comes from the POSIX locale definitions.
936 * The new header <langinfo.h> defines an interface for accessing
937 various locale-dependent data (using the locale chosen with `setlocale').
939 * Ulrich Drepper has contributed a new suite of functions for operation on
940 wide-character and multibyte-character strings, in <wchar.h>;
941 and classification and case conversion of wide characters, in <wctype.h>.
942 These new functions are conforming to the ISO C, Amendement 1 specification.
944 * There is now a second implementation of the standard I/O library available.
945 It comes from GNU libg++ as was written by Per Bothner, heavily modified
946 by Hongjiu Lu and made thread safe by Ulrich Drepper.
948 * You can now use positional parameter specifications in format strings
949 for the `printf' and `scanf' families of functions. For example,
950 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
951 ``Number 6, Mr Jones''. This is mainly useful when providing different
952 format strings for different languages, whose grammars may dictate
953 different orderings of the values being printed. To support this
954 feature, the interface for `register_printf_handler' has changed; see
955 the header file <printf.h> for details.
957 * The `printf' and `scanf' families of functions now understand a new
958 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
959 to group numbers as indicated by the locale; for `scanf' and friends, this
960 says to accept as valid only a number with all the proper grouping
961 separators in the right places. In the default "C" locale, numbers are
962 not grouped; but locales for specific countries will define the usual
963 conventions (i.e. separate thousands with `,' in the US locale).
965 * The pgrp functions have been regularized, slightly incompatibly but much
966 less confusingly. The core functions are now `getpgid' and `setpgid',
967 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
968 argument) and BSD `setpgrp' (identical to `setpgid') functions are
969 provided for compatibility. There is no longer an incompatible `getpgrp'
970 with an argument declared under _BSD_SOURCE; no BSD code uses it.
972 * The new header file <fts.h> and suite of functions simplify programs that
973 operate on directory trees. This code comes from 4.4 BSD.
975 * The resolver code has been updated from the BIND 4.9.5-P1 release.
976 Parts of the code were heavily modified by Ulrich Drepper to fit in the
977 NSS scheme used in glibc.
979 * There is a new malloc debugging hook `__memalign_hook'.
981 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
982 `unsigned int' in <sys/types.h>. These are for compatibility only and
983 their use is discouraged.
985 * The `-lmcheck' library to enable standard malloc debugging hooks is now
986 done differently, so that it works even without GNU ld.
988 * New function `euidaccess' checks allowed access to a file like `access',
989 but using the effective IDs instead of the real IDs.
991 * The time zone data files have been updated for the latest and greatest
992 local time conventions of the countries of the world.
994 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
995 see <dirent.h>.
997 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
998 for formatting floating-point numbers. They are provided only for
999 compatibility; new programs should use `sprintf' instead. There are
1000 also equivalent function for the `long double' floating-point type and
1001 all functions also exist in a reentrant form.
1003 * The new auxiliary library `-lutil' from 4.4 BSD contains various
1004 functions for maintaining the login-record files (primarily of use to
1005 system programs such as `login'), and convenient functions for
1006 allocating and initializing a pseudo-terminal (pty) device.
1008 * Ulrich Drepper has contributed new support for System V style
1009 shared memory and IPC on systems that support it.
1011 * Ulrich Drepper has contributed several miscellaneous new functions found
1012 in System V: The `hsearch' family of functions provide an effective
1013 implementation of hash tables; `a64l' and `l64a' provide a very simple
1014 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1015 number generator.
1017 * Ulrich Drepper has contributed new reentrant counterparts for the
1018 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1020 * Ulrich Drepper has contributed new, highly-optimized versions of several
1021 string functions for the i486/Pentium family of processors.
1023 * Ulrich Drepper has updated the Linux-specific code, based largely
1024 on work done in Hongjiu Lu's version of GNU libc for Linux.
1025 The GNU library now supports Linux versions 2.0.10 and later,
1026 using the ELF object file format (i[3456]86-*-linux).
1028 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1030 * David Mosberger-Tang and Richard Henderson have ported the C library
1031 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
1032 dynamic linking support for ELF/Alpha.
1034 * Richard Henderson contributed several Alpha optimized assembler function
1035 for arithmetic and string handling.
1037 * Ulrich Drepper has contributed a new set of message catalog functions to
1038 support multiple languages using the <libintl.h> interface, for use with
1039 his new package GNU gettext. Translation volunteers have contributed
1040 catalogs of the library's messages in Spanish, German, and Korean.
1042 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1043 program and the `catgets' function for reading the catalog files it
1044 creates. (The <libintl.h> interface is preferred; we include the
1045 <nl_types.h> interface using `catgets' only for source compatibility with
1046 programs already written to use it.)
1048 * New header file <values.h> gives SVID-compatible names for <limits.h>
1049 constants.
1051 * Various new macros, declarations, and small header files for compatibility
1052 with 4.4 BSD.
1054 * New function `group_member' is a convenient way to check if a process has
1055 a given effective group ID.
1057 * When using GCC 2.7 and later, the socket functions are now declared in a
1058 special way so that passing an argument of type `struct sockaddr_in *',
1059 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
1060 `struct sockaddr *' type, does not generate a type-clash warning.
1062 * New function `error' declared in header file <error.h> is a convenient
1063 function for printing error messages and optionally exiting; this is the
1064 canonical function used in GNU programs. The new functions `err', `warn',
1065 and friends in header file <err.h> are the canonical 4.4 BSD interface for
1066 doing the same thing.
1068 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
1069 POSIX.2 `glob' function to do ~ and {...} expansion.
1071 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
1072 `clearenv' which is used in POSIX.9 is also available.
1074 * New function `getsid' returns session ID number on systems that support it.
1076 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
1077 files <db.h> and <mpool.h> provide a rich set of functions for several
1078 types of simple databases stored in memory and in files, and <ndbm.h> is
1079 an old `ndbm'-compatible interface using the `db' functions. Link with
1080 `-ldb' to get these functions.
1082 * New macro `strdupa' copies a string like `strdup', but uses local stack
1083 space from `alloca' instead of dynamic heap space from `malloc'.
1085 * New function `strnlen' is like `strlen' but searches only a given maximum
1086 number of characters for the null terminator. `stpncpy', `strndup' and
1087 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1088 function.
1090 * New function `statfs' in header <sys/statfs.h>.
1092 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1093 provide convenient functions for operating on blocks of null-terminated
1094 strings.
1096 * A new suite of functions in <utmp.h> handle all the details of reading
1097 and writing the utmp file.
1099 * An implementation of the NIS/YP(tm) based NSS service was contributed by
1100 Thorsten Kukuk.
1102 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
1103 completely POSIX compliant and also implemented the extended functionality
1104 to handle alternate digit representation and alternate era date formats.
1106 * Ulrich Drepper provided an implementation of the `strptime' function
1107 defined in XPG4.2 which transforms a string into a `struct tm' value.
1109 * Paul Eggert provided the tzselect shell script as part of the timezone
1110 code. The shell script makes it easy to select the correct timezone
1111 specification.
1113 * The implementation of the malloc family of functions is completely replaced
1114 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
1115 The implementation uses the mmap function (if available) and it is
1116 optimized for the use in multi threaded programs.
1118 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
1119 functions. This new functionality is usable by specifying a special
1120 salt string and it is compatible with implementation on *BSD systems.
1122 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
1123 `getsubopt' to handle second level command line options, `bsd_signal'
1124 to access BSD style `signal' functionality, the obsolete `regexp' style
1125 expression matcher.
1127 * the `lchown' function is available on system which support this
1128 functionality.
1130 * The implementation of the shadow password handling function was contributed
1131 by Ulrich Drepper.
1133 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
1135 * POSIX.1g support was added. The <sys/select.h> header is available,
1136 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
1137 implementation of `getaddrinfo'.
1138 \f
1139 Version 1.09
1141 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
1143 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
1144 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
1146 * The new function `daemon' from 4.4 BSD is useful for server programs that
1147 want to put themselves in the background.
1149 * Joel Sherrill has contributed support for several standalone boards that
1150 run without an operating system.
1152 * `printf', `scanf' and friends now accept a `q' type modifier for long
1153 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
1155 * All of the code taken from BSD (notably most of the math and networking
1156 routines) has been updated from the BSD 4.4-Lite release.
1158 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
1160 * The new functions `getdomainname' and `setdomainname' fetch or change the
1161 YP/NIS domain name. These are system calls which exist on systems which
1162 have YP (aka NIS).
1164 * The time zone data files have been updated for the latest international
1165 conventions.
1167 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
1168 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
1169 \f
1170 Version 1.08
1172 * The C library now includes support for Sun RPC, from Sun's free
1173 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
1174 are included. (There is still no support for YP.)
1176 * Tom Quinn has contributed a port of the C library to SGI machines running
1177 Irix 4 (mips-sgi-irix4).
1179 * The new `lockf' function is a simplified interface to the locking
1180 facilities of `fcntl', included for compatibility.
1182 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
1184 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
1186 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
1187 compatibility.
1189 * The error message printed by `assert' for a failed assertion now includes
1190 the name of the program (if using GNU ld) and the name of the calling
1191 function (with versions of GCC that support this).
1193 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
1195 * The library now includes the <sys/mman.h> header file and memory
1196 management functions `mmap', `munmap', `mprotect', `msync', and
1197 `madvise', on systems that support those facilities.
1199 * The interface for `mcheck' has changed slightly: the function called to
1200 abort the program when an allocation inconsistency is detected now takes
1201 an argument that indicates the type of failure. The new function
1202 `mprobe' lets you request a consistency check for a particular block at
1203 any time (checks are normally done only when you call `free' or `realloc'
1204 on a block).
1206 * It is now possible to easily cross-compile the C library, building on one
1207 system a library to run on another machine and/or operating system. All
1208 you need to do is set the variable `HOST_CC' in `configparms' to the
1209 native compiler for programs to run on the machine you are building on (a
1210 few generator programs are used on Unix systems); set `CC' to the
1211 cross-compiler.
1213 * The new function `fexecve' (only implemented on the GNU system) executes
1214 a program file given a file descriptor already open on the file.
1215 \f
1216 Version 1.07
1218 * Brendan Kehoe has contributed most of a port to the DEC Alpha
1219 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
1221 * You can set the variable `libprefix' in `configparms' to specify a prefix
1222 to be prepended to installed library files; this makes it easy to install
1223 the GNU C library to be linked as `-lgnuc' or whatever.
1225 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
1226 copies a limited number of characters from a string, and returns the
1227 address of the last character written.
1229 * You no longer need to check for whether the installed `stddef.h' is
1230 compatible with the GNU C library. configure now checks for you.
1232 * You can now define a per-stream `fileno' function to convert the
1233 stream's cookie into an integral file descriptor.
1235 * ``malloc (0)'' no longer returns a null pointer. Instead, it
1236 allocates zero bytes of storage, and returns a unique pointer which
1237 you can pass to `realloc' or `free'. The behavior is undefined if
1238 you dereference this pointer.
1240 * The C library now runs on Sony NEWS m68k machines running either
1241 NewsOS 3 or NewsOS 4.
1243 * The new `syscall' function is a system-dependent primitive function
1244 for invoking system calls. It has the canonical behavior on Unix
1245 systems, including unreliable return values for some calls (such as
1246 `pipe', `fork' and `getppid').
1248 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
1249 to `EAGAIN', which is the preferred name. On systems whose kernels
1250 use two distinct codes, the C library now translates EWOULDBLOCK to
1251 EAGAIN in every system call function.
1252 \f
1253 Version 1.06
1255 * The GNU C Library Reference Manual is now distributed with the library.
1256 `make dvi' will produce a DVI file of the printed manual.
1257 `make info' will produce Info files that you can read on line using C-h i
1258 in Emacs or the `info' program.
1259 Please send comments on the manual to bug-glibc-manual@gnu.org.
1261 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
1263 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
1265 * Jason Merrill has contributed a port to the Sequent Symmetry running
1266 Dynix version 3 (i386-sequent-dynix).
1268 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
1269 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
1271 * New function `memory_warnings' lets you arrange to get warnings when
1272 malloc is running out of memory to allocate, like Emacs gives you.
1274 * The C library now contains the relocating allocator used in Emacs 19 for
1275 its editing buffers. This allocator (ralloc) minimizes allocation
1276 overhead and fragmentation by moving allocated regions around whenever it
1277 needs to. You always refer to a ralloc'd region with a "handle" (a
1278 pointer to a pointer--an object of type `void **').
1280 * There is a new `printf' format: `%m' gives you the string corresponding
1281 to the error code in `errno'.
1283 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
1284 or `%[' conversion, but instead of filling in a fixed-sized buffer you
1285 pass, the `a' modifier says to fill in a `char **' you pass with a
1286 malloc'd string.
1288 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
1289 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
1290 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
1292 * `mkstemp' is a traditional Unix function to atomically create and open a
1293 uniquely-named temporary file.
1294 \f
1295 Version 1.05
1297 * The standard location for the file that says what the local timezone is
1298 has changed again. It is now `/usr/local/etc/localtime' (or more
1299 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
1301 * The distribution no longer contains any files with names longer than 14
1302 characters.
1304 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
1305 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
1307 * New functions `ttyslot' and `syslog' from 4.4 BSD.
1308 \f
1309 Version 1.04
1311 * The configuration process has changed quite a bit. The `configure'
1312 script is now used just like the configuration scripts for other GNU
1313 packages. The `sysdeps' directory hierarchy is much rearranged.
1314 The file `INSTALL' explains the new scheme in detail.
1316 * The header files no longer need to be processed into ANSI C and
1317 traditional C versions. There is just one set of files to install, and
1318 it will work with ANSI or old C compilers (including `gcc -traditional').
1320 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
1321 MIPS DECStation running Ultrix 4.
1323 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
1324 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
1325 made itself into a shared library.
1327 * Yet further improved support for the i386, running 4.3 BSD-like systems
1328 (such as Mach 3 with the Unix single-server), or System V.
1330 * New function `strncasecmp' to do case-insensitive string comparison
1331 with limited length.
1333 * New function `strsep' is a reentrant alternative to `strtok'.
1335 * New functions `scandir' and `alphasort' for searching directories.
1337 * New function `setenv' is a better interface to `putenv'.
1339 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
1340 function for traversing a directory tree.
1342 * The GNU obstack package is now also part of the C library.
1343 The new function `open_obstack_stream' creates a stdio stream that
1344 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
1345 formatted output directly to an obstack.
1347 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
1348 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
1350 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
1352 * The new functions `strfry' and `memfrob' do mysterious and wonderful
1353 things to your strings.
1355 * There are some new test programs: test-fseek, testmb, and testrand.
1357 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
1358 These ports are not finished, but are a good starting place for really
1359 supporting those systems.
1361 * `/etc/localtime' is now the standard location for the file that says what
1362 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
1363 This follows the general principle that `/etc' is the place for all local
1364 configuration files.
1366 * The C library header files now use `extern "C"' when used by the C++
1367 compiler, so the C library should now work with C++ code.
1369 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
1370 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
1371 in <strings.h>.)
1373 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
1374 function which uses the `merge sort' algorithm, and is said to be
1375 significantly faster than the old GNU `qsort' function. Merge sort is
1376 now the standard `qsort' function. The new algorithm can require a lot
1377 of temporary storage; so, the old sorting function is called when the
1378 required storage is not available.
1380 * The C library now includes Michael Glad's Ultra Fast Crypt, which
1381 provides the Unix `crypt' function, plus some other entry points.
1383 * The code and header files taken from 4.4 BSD have been updated with the
1384 latest files released from Berkeley.
1385 \f
1386 ----------------------------------------------------------------------
1387 Copyright information:
1389 Copyright (C) 1992-1999,2000,01,02 Free Software Foundation, Inc.
1391 Permission is granted to anyone to make or distribute verbatim copies
1392 of this document as received, in any medium, provided that the
1393 copyright notice and this permission notice are preserved,
1394 thus giving the recipient permission to redistribute in turn.
1396 Permission is granted to distribute modified versions
1397 of this document, or of portions of it,
1398 under the above conditions, provided also that they
1399 carry prominent notices stating who last changed them.
1400 \f
1401 Local variables:
1402 version-control: never
1403 End: