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1 GNU C Library NEWS -- history of user-visible changes. 2001-7-27
2 Copyright (C) 1992-2000, 2001 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 2.2.4
11 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
12 asinh, atanh, j0 for the 128-bit long double format.
14 * Bruno Haible updated all the code handling Unicode in some form to
15 support Unicode 3.1.
17 * Speed of regex for single-byte locales is back to previous levels.
18 Patch by Isamu Hasegawa.
20 * Alpha, SPARC, and IA-64 now also using floating stacks.
22 * Startup time of internationalized applications greatly improved through
23 iconv cache. Use iconvconfig to generate the cache file.
24 Contributed by Ulrich Drepper.
26 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
27 severe performance problems. Patch by David Mosberger.
29 * The Hurd port got a lot more functionality like AIO, various stdio
30 extensions, etc. Mainly done by Roland McGrath.
32 * mtrace can now lookup symbols in shared libraries.
33 \f
34 Version 2.2.3
36 * Intel's IA-64 math library is largely integrated. It provides fast and
37 accurate implementatations for most basic and standard math functions
38 in float, double, and long double format.
40 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
41 and asin for the 96-bit long double format and asin, log, tan for the
42 128-bit long double format.
44 * The beginning of a last-bit accurate math library by IBM Haifa were added.
45 The basic double functions exist today. Contributed by Abraham Ziv
46 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
47 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
49 * An asynchronous name lookup library was added. The interface is designed
50 after POSIX AIO. The proposal was circulated beforehand to get comments.
51 No negative ones came in. Implemented by Ulrich Drepper.
53 * Port to S390/64bit contributed by Martin Schwidefsky
54 <schwidefsky@de.ibm.com>.
56 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
57 of functions for Linux/IA-64.
59 * The RPC code is now thread safe. Threads can now use the same service
60 of different services at the same time. Patch by Eric Norum
61 <eric.norum@usask.ca> with some help by Ulrich Drepper.
63 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
64 family of functions for Linux/S390.
66 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
67 of functions for Linux/x86.
69 * Port to Linux/CRIS contributed by Axis Communications.
70 \f
71 Version 2.2.2
73 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
74 we can now check for namespace violations and missing declarations. The
75 result is that almost all headers are now Unix-compliant (as defined in
76 the upcoming XPG6). The negative side is that some programs might need
77 corrections, too, if they depend on the incorrect form of the headers in
78 previous versions which defined too many symbols and included too many
79 other headers.
81 * regex now handles multibyte character sets correctly.
82 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
84 * iconv (the program) does now conform to the upcoming XPG6 and handles
85 charmaps. Instead of the charset names the path of charmaps can be
86 provided and the conversion happens based on this data.
87 Contributed by Ulrich Drepper.
89 * The locale program now provides detailed information about the installed
90 locales. While
92 locale -a
94 only lists the names of the supported locales
96 locale -a --verbose
98 provides details such as country, language, and codeset name.
99 Contributed by Ulrich Drepper.
100 \f
101 Version 2.2.1
103 * The gencat program now parses the input file according to the charset
104 selected by the LC_CTYPE category. This is important for stateful
105 character sets. To make generating catalogs easier there is a way
106 to overwrite the charset selected by the locale: before the first
107 message or $ quote line the catalog can contain a line like
109 $ codeset=ISO-8859-2
111 to select the charset (ISO-8859-2 in this case).
113 Implemented by Shinya Hanataka and Ulrich Drepper.
115 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
116 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
117 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
119 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
120 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
122 * The LANGUAGE environment variable is now ignored unless the locale is
123 changed from the default "C" locale.
125 * The usual bug fixes.
126 \f
127 Version 2.2
129 * Greg McGary added runtime support for bounds checking using gcc's
130 new -fbounded-pointers option. ix86 target is complete. PowerPC
131 is in progress.
133 * Thorsten Kukuk added secure mode support to nscd.
135 * The Berkeley db libraries have been removed.
137 Related, the nss_db module is now in a separate package since it
138 obviously requires a database library being available.
140 * Wide character I/O streams implemented by Ulrich Drepper.
142 * Functions from the extended socket API added by Ulrich Drepper.
144 * Functions feenableexcept and fedisableexcept to control the
145 behaviour of individual exceptions have been added by Andreas Jaeger.
147 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
149 * The resolver code has been updated from bind 8.2.3-T5B which supports
150 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
151 and Mark Kettenis.
153 This change could in some situations effect backward compatibility. Since
154 now `_res' is a thread-local instead of a global variable, modifying it
155 in one thread does not have any effect in other threads.
157 The resolver library was also extended to allow IPv6 as the transport
158 protocol for the requests. This work was done by Stig Venaas.
160 * Compatibility code for K&R C compilers has been removed from the
161 header files. A ISO C compiler is needed to use the library
162 (conforming to either C89 or C99 standard).
164 * Complete rewrite of the localedef program to support multibyte character
165 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
166 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
167 Implemented by Ulrich Drepper.
169 Bruno Haible significantly improved the generation and use of the data
170 structures for the wide character tables.
172 * Plural handling in gettext implemented by Ulrich Drepper.
174 * The utmp daemon has been removed.
176 * The port to MIPS-Linux has been finished by Andreas Jaeger.
178 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
179 and Yutaka Niibe.
181 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
183 * POSIX barriers implemented by Kaz Kylheku.
185 * POSIX spawn function family implemented by Ulrich Drepper.
187 * POSIX spinlocks are now available.
189 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
191 * the configure option --enable-kernel=X.Y.Z allows to strip out
192 compatibility for kernel versions before X.Y.Z. This is currently only
193 implemented for Linux.
195 * the sockaddr_in6 structure changed. The IPv6 working group added a new
196 field sin6_scope_id. This means that all programs using IPv6 should be
197 recompiled. Don't expect binary compatibility with previous glibc
198 versions.
200 * various conversion modules for IBM character sets contributed by
201 Masahide Washizawa.
203 * IA-64 port by Jes Sorensen and HJ Lu.
205 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
206 Compiling the GNU C Library for Linux/ia64
207 ******************************************
209 Please refer to the file INSTALL in the same directory as you found
210 this file for general information about configuring and compiling
211 glibc.
213 For general inquiries about glibc under Linux/ia64 please use the
214 following mailing list linux-ia64@linuxia64.org or one of the relevant
215 glibc mailing lists.
217 Recommended Tools for Compilation
218 =================================
220 In order for glibc-2.2 to build correctly on the ia64 you need at
221 least the following versions of the GNU tools (the :
223 * The Cygnus toolchain snapshot for the ia64 as of August 4
224 including the provided set of patches. It is however recommend
225 you use the October 24 toolchain snapshot or a more recent version.
227 OR alternatively you can try the following (the Cygnus toolchain is
228 the recommended solution):
230 * GCC and binutils, GAS and GNU LD out of CVS from
231 sources.redhat.com as of August 28, 2000 or later. The CVS tree
232 may require special patches to work properly on the ia64.
234 Configuring and compiling GNU Libc for Linux/ia64
235 =================================================
237 The library requires Linux kernel version 2.4.0-test4-000728 or
238 later to funtion properly. Besides that it support for debug libraries
239 is currently untested. Hence the following options
240 are required for configuring the library:
242 --disable-debug --enable-kernel=2.4.0
244 It is also important that you make sure the library picks up the
245 appropriate kernel header files, if you do not have recent enough
246 kernel headers in /usr/src/linux/include, you should use the
247 --with-headers=<path> option to specify the location.
249 As an example I personally use the following options to configure
250 the library:
252 --disable-debug
253 --disable-cvs
254 --enable-kernel=2.4.0
255 --host=ia64-linux
256 --enable-add-ons=yes
257 --prefix=/usr
258 --with-headers=/home/jes/linux/include
261 Good luck
263 Jes Sorensen <jes@linuxcare.com>,
264 November 14th, 2000
265 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
266 \f
267 Version 2.1.3
269 * bug fixes
271 \f
272 Version 2.1.2
274 * bug fixes
276 \f
277 Version 2.1.1
279 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
281 * New xdr functions are added; some rpc functions are now 64bit clean.
283 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
285 * Fixed known incompatibilities with glibc 2.0.
287 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
289 * Optimized a number of functions (especially the ELF dynamic loader).
291 * Update timezone data files.
293 * lots of charmaps corrections
295 * some new locale definitions and charmaps
297 \f
298 Version 2.1
300 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
301 conform to POSIX member type requirements. Symbol versions have been
302 adjusted as needed within the library, and for direct use by applications,
303 but there is potential for problems if third-party libraries use
304 struct timeval as part of their interface. This does not present
305 a problem for X and other "essential" system libraries.
307 * An additional locale model to support C++ Standard Library locale
308 model and probably more was implemented by Ulrich Drepper.
310 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
311 symbol level.
313 * Miles Bader provided the `argp' function family to support hierachical
314 command line argument parsing, layered on top of getopt.
316 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
318 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
319 numbers.
321 * scanf recognizes the %a and %A format for scanning floating point numbers.
323 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
324 information and interfaces for the available integer types.
326 * about 130 new math functions were added to implement the ISO C9x math
327 library.
329 * the new header <complex.h> contains definitions of the complex math
330 functions from ISO C 9X.
332 * the new header <tgmath.h> defines generic macros to use complex or
333 real valued functions.
335 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
337 * Andreas Jaeger provided a test suite for the math library.
339 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
341 * Ulrich Drepper added character set conversion functions (iconv).
343 * Optimized string functions have been added.
345 * The localedata addon is now part of glibc.
347 * An implementation of profiling shared libraries was added by Ulrich Drepper.
349 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
350 daemon for NSS (nscd).
352 Missing a better place here are some numbers on improvements. Under
353 Linux 2.1.125 un-tar-ing the kernel sources takes
355 user system wall
357 using local files 12.19s 6.88s 22.91s
359 using NIS 13.92s 8.91s 26.34s
361 using NIS & nscd 10.37s 7.34s 25.30s
363 using NIS+ 27.57s 30.37s 640.46s
365 using NIS+ & nscd 10.25s 7.83s 26.51s
367 using NIS & old nscd [1] 13.83s 8.32s 29.60s
369 Keep in mind that non-namelookup related operations dominate above times.
370 It was just a common complain that using NIS+ unpacking the kernel is
371 horribly slow.
373 [1] The old nscd implementation is not available anymore since it was
374 distributed with glibc up to version 2.0.98 and thus is now replaced.
376 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
378 * Mark Kettenis provided a Hesiod NSS module.
380 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
381 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
383 * rcmd can now handle netgroups (Dick Streefland).
385 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
386 Bambrough.
388 * Support for the IPv6 protocol has been added to the socket API, as per the
389 latest draft standards.
391 * Support for Linux 2.2 has been added.
393 * Interface changes relative to the latest 2.0.x release:
394 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
395 addseverity NEW: Unix98
396 alphasort64 NEW: LFS
397 argp_err_exit_status NEW: argp, GNU ext
398 argp_error NEW: argp, GNU ext
399 argp_failure NEW: argp, GNU ext
400 argp_help NEW: argp, GNU ext
401 argp_parse NEW: argp, GNU ext
402 argp_program_bug_address NEW: argp, GNU ext
403 argp_program_version NEW: argp, GNU ext
404 argp_program_version_hook NEW: argp, GNU ext
405 argp_state_help NEW: argp, GNU ext
406 argp_usage NEW: argp, GNU ext
407 authdes_create NEW: Secure RPC
408 authdes_getucred NEW: Secure RPC
409 authdes_pk_create NEW: Secure RPC
410 backtrace NEW: GNU ext.
411 backtrace_symbols NEW: GNU ext.
412 backtrace_symbols_fd NEW: GNU ext.
413 cacos NEW: ISO C 9x
414 cacosf NEW: ISO C 9x
415 cacosh NEW: ISO C 9x
416 cacoshf NEW: ISO C 9x
417 cacoshl NEW: ISO C 9x
418 cacosl NEW: ISO C 9x
419 capget NEW: kernel
420 capset NEW: kernel
421 carg NEW: ISO C 9x
422 cargf NEW: ISO C 9x
423 cargl NEW: ISO C 9x
424 casin NEW: ISO C 9x
425 casinf NEW: ISO C 9x
426 casinh NEW: ISO C 9x
427 casinhf NEW: ISO C 9x
428 casinhl NEW: ISO C 9x
429 casinl NEW: ISO C 9x
430 catan NEW: ISO C 9x
431 catanf NEW: ISO C 9x
432 catanh NEW: ISO C 9x
433 catanhf NEW: ISO C 9x
434 catanhl NEW: ISO C 9x
435 catanl NEW: ISO C 9x
436 cbc_crypt NEW: Secure RPC
437 ccos NEW: ISO C 9x
438 ccosf NEW: ISO C 9x
439 ccosh NEW: ISO C 9x
440 ccoshf NEW: ISO C 9x
441 ccoshl NEW: ISO C 9x
442 ccosl NEW: ISO C 9x
443 cexp NEW: ISO C 9x
444 cexpf NEW: ISO C 9x
445 cexpl NEW: ISO C 9x
446 cimag NEW: ISO C 9x
447 cimagf NEW: ISO C 9x
448 cimagl NEW: ISO C 9x
449 clearerr_locked REMOVED
450 clntunix_create NEW: sunrpc ext
451 clog NEW: ISO C 9x
452 clog10 NEW: ISO C 9x
453 clog10f NEW: ISO C 9x
454 clog10l NEW: ISO C 9x
455 clogf NEW: ISO C 9x
456 clogl NEW: ISO C 9x
457 conj NEW: ISO C 9x
458 conjf NEW: ISO C 9x
459 conjl NEW: ISO C 9x
460 cpow NEW: ISO C 9x
461 cpowf NEW: ISO C 9x
462 cpowl NEW: ISO C 9x
463 cproj NEW: ISO C 9x
464 cprojf NEW: ISO C 9x
465 cprojl NEW: ISO C 9x
466 creal NEW: ISO C 9x
467 crealf NEW: ISO C 9x
468 creall NEW: ISO C 9x
469 creat64 NEW: LFS
470 csin NEW: ISO C 9x
471 csinf NEW: ISO C 9x
472 csinh NEW: ISO C 9x
473 csinhf NEW: ISO C 9x
474 csinhl NEW: ISO C 9x
475 csinl NEW: ISO C 9x
476 csqrt NEW: ISO C 9x
477 csqrtf NEW: ISO C 9x
478 csqrtl NEW: ISO C 9x
479 ctan NEW: ISO C 9x
480 ctanf NEW: ISO C 9x
481 ctanh NEW: ISO C 9x
482 ctanhf NEW: ISO C 9x
483 ctanhl NEW: ISO C 9x
484 ctanl NEW: ISO C 9x
485 des_setparity NEW: Secure RPC
486 ecb_crypt NEW: Secure RPC
487 endutxent NEW: Unix98
488 exp10 NEW: ISO C 9x
489 exp10f NEW: ISO C 9x
490 exp10l NEW: ISO C 9x
491 exp2 NEW: ISO C 9x
492 exp2f NEW: ISO C 9x
493 exp2l NEW: ISO C 9x
494 fattach NEW: STREAMS
495 fdetach NEW: STREAMS
496 fdim NEW: ISO C 9x
497 fdimf NEW: ISO C 9x
498 fdiml NEW: ISO C 9x
499 feclearexcept NEW: ISO C 9x
500 fegetenv NEW: ISO C 9x
501 fegetexceptflag NEW: ISO C 9x
502 fegetround NEW: ISO C 9x
503 feholdexcept NEW: ISO C 9x
504 feof_locked REMOVED
505 feraiseexcept NEW: ISO C 9x
506 ferror_locked REMOVED
507 fesetenv NEW: ISO C 9x
508 fesetexceptflag NEW: ISO C 9x
509 fesetround NEW: ISO C 9x
510 fetestexcept NEW: ISO C 9x
511 feupdateenv NEW: ISO C 9x
512 fflush_locked REMOVED
513 ffsl NEW: GNU ext.
514 ffsll NEW: GNU ext.
515 fgetpos64 NEW: LFS
516 fgets_unlocked NEW: GNU ext.
517 fileno_locked REMOVED
518 fma NEW: ISO C 9x
519 fmaf NEW: ISO C 9x
520 fmal NEW: ISO C 9x
521 fmax NEW: ISO C 9x
522 fmaxf NEW: ISO C 9x
523 fmaxl NEW: ISO C 9x
524 fmin NEW: ISO C 9x
525 fminf NEW: ISO C 9x
526 fminl NEW: ISO C 9x
527 fmtmsg NEW: Unix98
528 fopen64 NEW: LFS
529 fputc_locked REMOVED
530 fputs_unlocked NEW: GNU ext.
531 fread_unlocked NEW: GNU ext.
532 freopen64 NEW: LFS
533 fseeko NEW: Unix98
534 fsetpos64 NEW: LFS
535 fstatfs64 NEW: LFS
536 fstatvfs NEW: Unix98
537 fstatvfs64 NEW: LFS
538 ftello NEW: Unix98
539 ftello64 NEW: LFS
540 ftruncate64 NEW: LFS
541 ftw64 NEW: LFS
542 fwrite_unlocked NEW: GNU ext.
543 gai_strerror NEW: IPv6
544 gamma_r REMOVED
545 gammaf_r REMOVED
546 gammal_r REMOVED
547 getchar_locked REMOVED
548 getdate NEW: Unix98
549 getdate_err NEW: Unix98
550 getdate_r NEW: GNU ext.
551 getmsg NEW: STREAMS
552 getnameinfo NEW: IPv6
553 getnetname NEW: Secure RPC
554 getpmsg NEW: STREAMS
555 getpt NEW: Unix98 PTY
556 getrlimit64 NEW: LFS
557 getutxent NEW: Unix98
558 getutxid NEW: Unix98
559 getutxline NEW: Unix98
560 glob64 NEW: GNU ext.
561 globfree64 NEW: GNU ext.
562 gnu_get_libc_release NEW: GNU ext.
563 gnu_get_libc_version NEW: GNU ext.
564 grantpt NEW: Unix98 PTY
565 host2netname NEW: Secure RPC
566 iconv NEW: iconv
567 iconv_close NEW: iconv
568 iconv_open NEW: iconv
569 if_freenameindex NEW: IPv6
570 if_indextoname NEW: IPv6
571 if_nameindex NEW: IPv6
572 if_nametoindex NEW: IPv6
573 in6addr_any NEW: IPv6
574 in6addr_loopback NEW: IPv6
575 inet6_isipv4mapped NEW: IPv6
576 isastream NEW: STREAMS
577 iswblank NEW: GNU ext.
578 key_decryptsession NEW: Secure RPC
579 key_decryptsession_pk NEW: Secure RPC
580 key_encryptsession NEW: Secure RPC
581 key_encryptsession_pk NEW: Secure RPC
582 key_gendes NEW: Secure RPC
583 key_get_conv NEW: Secure RPC
584 key_secretkey_is_set NEW: Secure RPC
585 key_setnet NEW: Secure RPC
586 key_setsecret NEW: Secure RPC
587 llrint NEW: ISO C 9x
588 llrintf NEW: ISO C 9x
589 llrintl NEW: ISO C 9x
590 llround NEW: ISO C 9x
591 llroundf NEW: ISO C 9x
592 llroundl NEW: ISO C 9x
593 log2 NEW: ISO C 9x
594 log2f NEW: ISO C 9x
595 log2l NEW: ISO C 9x
596 lrint NEW: ISO C 9x
597 lrintf NEW: ISO C 9x
598 lrintl NEW: ISO C 9x
599 lround NEW: ISO C 9x
600 lroundf NEW: ISO C 9x
601 lroundl NEW: ISO C 9x
602 lseek64 NEW: LFS
603 makecontext NEW: Unix98
604 mempcpy NEW: GNU ext.
605 mmap64 NEW: LFS
606 moncontrol REMOVED
607 modify_ldt NEW: kernel
608 nan NEW: ISO C 9x
609 nanf NEW: ISO C 9x
610 nanl NEW: ISO C 9x
611 nearbyint NEW: ISO C 9x
612 nearbyintf NEW: ISO C 9x
613 nearbyintl NEW: ISO C 9x
614 netname2host NEW: Secure RPC
615 netname2user NEW: Secure RPC
616 nexttoward NEW: ISO C 9x
617 nexttowardf NEW: ISO C 9x
618 nexttowardl NEW: ISO C 9x
619 nftw NEW: Unix98
620 nftw64 NEW: LFS
621 open64 NEW: LFS
622 passwd2des NEW: Secure RPC
623 pow10 NEW: GNU ext.
624 pow10f NEW: GNU ext.
625 pow10l NEW: GNU ext.
626 pread NEW: Unix98
627 pread64 NEW: LFS
628 printf_size NEW: GNU ext.
629 printf_size_info NEW: GNU ext.
630 profil_counter REMOVED
631 pthread_mutexattr_getkind_np REPLACED
632 pthread_mutexattr_setkind_np REPLACED
633 ptsname NEW: Unix98 PTY
634 ptsname_r NEW: Unix98 PTY
635 putc_locked REMOVED
636 putchar_locked REMOVED
637 putgrent NEW: GNU ext.
638 putmsg NEW: STREAMS
639 putpmsg NEW: STREAMS
640 pututxline NEW: Unix98
641 pwrite NEW: Unix98
642 pwrite64 NEW: LFS
643 readdir64 NEW: LFS
644 readdir64_r NEW: LFS
645 remquo NEW: ISO C 9x
646 remquof NEW: ISO C 9x
647 remquol NEW: ISO C 9x
648 round NEW: ISO C 9x
649 roundf NEW: ISO C 9x
650 roundl NEW: ISO C 9x
651 rtime NEW: GNU ext.
652 scalbln NEW: ISO C 9x
653 scalblnf NEW: ISO C 9x
654 scalblnl NEW: ISO C 9x
655 scandir64 NEW: LFS
656 sendfile NEW: kernel
657 setcontext NEW: Unix98
658 setrlimit64 NEW: LFS
659 setutxent NEW: Unix98
660 sighold NEW: Unix98
661 sigignore NEW: Unix98
662 sigqueue NEW: POSIX.1b
663 sigrelse NEW: Unix98
664 sigset NEW: POSIX.1b
665 sigtimedwait NEW: POSIX.1b
666 sigwaitinfo NEW: POSIX.1b
667 sincos NEW: GNU ext.
668 sincosf NEW: GNU ext.
669 sincosl NEW: GNU ext.
670 statfs64 NEW: LFS
671 statvfs NEW: Unix98
672 statvfs64 NEW: LFS
673 strcasestr NEW: GNU ext.
674 strtoimax NEW: ISO C 9x
675 strtoumax NEW: ISO C 9x
676 strverscmp NEW: GNU ext.
677 svcauthdes_stats NEW: Secure RPC
678 svcunix_create NEW: sunrpc etx
679 svcunixfd_create NEW: sunrpc ext
680 swapcontext NEW: Unix98
681 tcgetsid NEW: Unix98 PTY
682 tdestroy NEW: GNU ext.
683 tgamma NEW: ISO C 9x
684 tgammaf NEW: ISO C 9x
685 tgammal NEW: ISO C 9x
686 tmpfile64 NEW: LFS
687 trunc NEW: ISO C 9x
688 truncate64 NEW: LFS
689 truncf NEW: ISO C 9x
690 truncl NEW: ISO C 9x
691 umount2 NEW: kernel
692 unlockpt NEW: Unix98 PTY
693 updwtmpx NEW: Unix98
694 user2netname NEW: Secure RPC
695 utmpxname NEW: Unix98
696 versionsort NEW: GNU ext.
697 versionsort64 NEW: GNU ext.
698 waitid NEW: Unix98
699 wcscasecmp NEW: GNU ext.
700 wcsncasecmp NEW: GNU ext.
701 wcsnlen NEW: GNU ext.
702 wcstoimax NEW: ISO C 9x
703 wcstoll NEW: ISO C 9x
704 wcstoull NEW: ISO C 9x
705 wcstoumax NEW: ISO C 9x
706 wcswcs NEW: Unix98
707 wordexp NEW: POSIX.2
708 wordfree NEW: POSIX.2
709 write_profiling REMOVED
710 xdecrypt NEW: Secure RPC
711 xdr_authdes_cred NEW: Secure RPC
712 xdr_authdes_verf NEW: Secure RPC
713 xdr_cryptkeyarg NEW: Secure RPC
714 xdr_cryptkeyarg2 NEW: Secure RPC
715 xdr_cryptkeyres NEW: Secure RPC
716 xdr_getcredres NEW: Secure RPC
717 xdr_key_netstarg NEW: Secure RPC
718 xdr_key_netstres NEW: Secure RPC
719 xdr_keybuf NEW: Secure RPC
720 xdr_keystatus NEW: Secure RPC
721 xdr_netnamestr NEW: Secure RPC
722 xdr_sizeof NEW: Secure RPC
723 xdr_unixcred NEW: sunrpc ext
724 xencrypt NEW: Secure RPC
725 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
726 \f
727 Version 2.0.6
729 * more bug fixes
731 \f
732 Version 2.0.5
734 * more bug fixes
736 * inet_ntoa is thread-safe
738 * updwtmp is moved from libutil to libc
740 * rewrite of cbrt function
742 * update of timezone data
743 \f
744 Version 2.0.4
746 * more bug fixes
747 \f
748 Version 2.0.3
750 * more bug fixes
751 \f
752 Version 2.0.2
754 * more bug fixes
756 * add atoll function
758 * fix complex problems in Berkeley DB code
760 * fix math functions
761 \f
762 Version 2.0.1
764 * fixed lots of header problems (especially Linux/GNU specific)
766 * dynamic loader preserves all registers
768 * Roland McGrath provided support for handling of auxiliary objects in
769 the ELF dynamic loader.
771 * support for parallel builds is improved
772 \f
773 Version 2.0
775 * GNU extensions are no longer declared by default. To enable them you
776 must define the macro `_GNU_SOURCE' in your program or compile with
777 `-D_GNU_SOURCE'.
779 * The library has changed from using GNU ld symbol aliases to using weak
780 symbols where available. The ELF object file format supports weak
781 symbols; GNU ld also supports weak symbols in the a.out format. (There
782 is also now support for other GNU ld extensions in ELF. Use the
783 `--with-elf' option to configure to indicate you have ELF, and
784 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
785 of many files which contained only symbol aliases, reducing the size of
786 the source and the compiled library; many other files were renamed to
787 less cryptic names previously occupied by the symbol alias files.
788 There is a new header file <elf.h> for programs which operate on
789 files in the ELF format.
791 * Converted to Autoconf version 2, so `configure' has more options.
792 Run `configure --help' to see the details.
794 * The library can now be configured to build profiling, highly-optimized
795 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
796 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
797 `configure' enable building these extra libraries. The shared library is
798 built by default when using both ELF and GNU ld. When shared libraries
799 are enabled, the new library `-ldl' is available for arbitrary run-time
800 loading of shared objects; its interface is defined in <dlfcn.h>. The
801 new header file <link.h> gives access to the internals of the run-time
802 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
803 application of same name on other systems and it provides information
804 about dynamically linked binaries.
806 * The C library now provides the run-time support code for profiling
807 executables compiled with `-pg'. Programs can control the profiling code
808 through the interface in <sys/gmon.h>. The `gmon.out' files written by
809 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
810 the support for this file format was contributed by David Mosberger-Tang.
812 * The math code has been replaced with a math library based on fdlibm from
813 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
814 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
815 functions. The math functions now reside in a separate library, so
816 programs using them will need to use `-lm' their linking commands.
818 * John C. Bowman contributed optimized ix87 assembler inline functions.
820 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
821 mechanism similar to that found in Solaris 2. This is now used for the
822 group, passwd, hosts, networks, services, protocols, rpc, ethers,
823 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
824 file controls what services are used for each individual database. This
825 works by loading shared libraries with names specified in `nsswitch.conf',
826 so service modules can be changed or added at any time without even
827 relinking any program. Currently there are the file, db, and NIS based
828 NSS services available.
830 * The new functions `strtoq' and `strtouq' parse integer values from
831 strings, like `strtol' and `strtoul', but they return `long long int' and
832 `unsigned long long int' values, respectively (64-bit quantities).
834 * The new functions `strtof' and `strtold' parse floating-point values from
835 strings, like `strtod', but they return `float' and `long double' values,
836 respectively (on some machines `double' and `long double' are the same).
838 * Ulrich Drepper has contributed new implementations of the floating-point
839 printing and reading code used in the `printf' family of functions and
840 `strtod', `strtof', and `strtold'. These new functions are perfectly
841 accurate, and much faster than the old ones.
843 * The implementation of the POSIX locale model was completely rewritten by
844 Ulrich Drepper. This includes the new programs `localedef' and `locale'
845 to compile the POSIX locale definition.
847 * The former dummy implementations of the strcoll and strxfrm function are
848 now replaced by fully functional code contributed by Ulrich Drepper. The
849 collation information comes from the POSIX locale definitions.
851 * The new header <langinfo.h> defines an interface for accessing
852 various locale-dependent data (using the locale chosen with `setlocale').
854 * Ulrich Drepper has contributed a new suite of functions for operation on
855 wide-character and multibyte-character strings, in <wchar.h>;
856 and classification and case conversion of wide characters, in <wctype.h>.
857 These new functions are conforming to the ISO C, Amendement 1 specification.
859 * There is now a second implementation of the standard I/O library available.
860 It comes from GNU libg++ as was written by Per Bothner, heavily modified
861 by Hongjiu Lu and made thread safe by Ulrich Drepper.
863 * You can now use positional parameter specifications in format strings
864 for the `printf' and `scanf' families of functions. For example,
865 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
866 ``Number 6, Mr Jones''. This is mainly useful when providing different
867 format strings for different languages, whose grammars may dictate
868 different orderings of the values being printed. To support this
869 feature, the interface for `register_printf_handler' has changed; see
870 the header file <printf.h> for details.
872 * The `printf' and `scanf' families of functions now understand a new
873 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
874 to group numbers as indicated by the locale; for `scanf' and friends, this
875 says to accept as valid only a number with all the proper grouping
876 separators in the right places. In the default "C" locale, numbers are
877 not grouped; but locales for specific countries will define the usual
878 conventions (i.e. separate thousands with `,' in the US locale).
880 * The pgrp functions have been regularized, slightly incompatibly but much
881 less confusingly. The core functions are now `getpgid' and `setpgid',
882 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
883 argument) and BSD `setpgrp' (identical to `setpgid') functions are
884 provided for compatibility. There is no longer an incompatible `getpgrp'
885 with an argument declared under _BSD_SOURCE; no BSD code uses it.
887 * The new header file <fts.h> and suite of functions simplify programs that
888 operate on directory trees. This code comes from 4.4 BSD.
890 * The resolver code has been updated from the BIND 4.9.5-P1 release.
891 Parts of the code were heavily modified by Ulrich Drepper to fit in the
892 NSS scheme used in glibc.
894 * There is a new malloc debugging hook `__memalign_hook'.
896 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
897 `unsigned int' in <sys/types.h>. These are for compatibility only and
898 their use is discouraged.
900 * The `-lmcheck' library to enable standard malloc debugging hooks is now
901 done differently, so that it works even without GNU ld.
903 * New function `euidaccess' checks allowed access to a file like `access',
904 but using the effective IDs instead of the real IDs.
906 * The time zone data files have been updated for the latest and greatest
907 local time conventions of the countries of the world.
909 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
910 see <dirent.h>.
912 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
913 for formatting floating-point numbers. They are provided only for
914 compatibility; new programs should use `sprintf' instead. There are
915 also equivalent function for the `long double' floating-point type and
916 all functions also exist in a reentrant form.
918 * The new auxiliary library `-lutil' from 4.4 BSD contains various
919 functions for maintaining the login-record files (primarily of use to
920 system programs such as `login'), and convenient functions for
921 allocating and initializing a pseudo-terminal (pty) device.
923 * Ulrich Drepper has contributed new support for System V style
924 shared memory and IPC on systems that support it.
926 * Ulrich Drepper has contributed several miscellaneous new functions found
927 in System V: The `hsearch' family of functions provide an effective
928 implementation of hash tables; `a64l' and `l64a' provide a very simple
929 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
930 number generator.
932 * Ulrich Drepper has contributed new reentrant counterparts for the
933 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
935 * Ulrich Drepper has contributed new, highly-optimized versions of several
936 string functions for the i486/Pentium family of processors.
938 * Ulrich Drepper has updated the Linux-specific code, based largely
939 on work done in Hongjiu Lu's version of GNU libc for Linux.
940 The GNU library now supports Linux versions 2.0.10 and later,
941 using the ELF object file format (i[3456]86-*-linux).
943 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
945 * David Mosberger-Tang and Richard Henderson have ported the C library
946 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
947 dynamic linking support for ELF/Alpha.
949 * Richard Henderson contributed several Alpha optimized assembler function
950 for arithmetic and string handling.
952 * Ulrich Drepper has contributed a new set of message catalog functions to
953 support multiple languages using the <libintl.h> interface, for use with
954 his new package GNU gettext. Translation volunteers have contributed
955 catalogs of the library's messages in Spanish, German, and Korean.
957 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
958 program and the `catgets' function for reading the catalog files it
959 creates. (The <libintl.h> interface is preferred; we include the
960 <nl_types.h> interface using `catgets' only for source compatibility with
961 programs already written to use it.)
963 * New header file <values.h> gives SVID-compatible names for <limits.h>
964 constants.
966 * Various new macros, declarations, and small header files for compatibility
967 with 4.4 BSD.
969 * New function `group_member' is a convenient way to check if a process has
970 a given effective group ID.
972 * When using GCC 2.7 and later, the socket functions are now declared in a
973 special way so that passing an argument of type `struct sockaddr_in *',
974 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
975 `struct sockaddr *' type, does not generate a type-clash warning.
977 * New function `error' declared in header file <error.h> is a convenient
978 function for printing error messages and optionally exiting; this is the
979 canonical function used in GNU programs. The new functions `err', `warn',
980 and friends in header file <err.h> are the canonical 4.4 BSD interface for
981 doing the same thing.
983 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
984 POSIX.2 `glob' function to do ~ and {...} expansion.
986 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
987 `clearenv' which is used in POSIX.9 is also available.
989 * New function `getsid' returns session ID number on systems that support it.
991 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
992 files <db.h> and <mpool.h> provide a rich set of functions for several
993 types of simple databases stored in memory and in files, and <ndbm.h> is
994 an old `ndbm'-compatible interface using the `db' functions. Link with
995 `-ldb' to get these functions.
997 * New macro `strdupa' copies a string like `strdup', but uses local stack
998 space from `alloca' instead of dynamic heap space from `malloc'.
1000 * New function `strnlen' is like `strlen' but searches only a given maximum
1001 number of characters for the null terminator. `stpncpy', `strndup' and
1002 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1003 function.
1005 * New function `statfs' in header <sys/statfs.h>.
1007 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1008 provide convenient functions for operating on blocks of null-terminated
1009 strings.
1011 * A new suite of functions in <utmp.h> handle all the details of reading
1012 and writing the utmp file.
1014 * An implementation of the NIS/YP(tm) based NSS service was contributed by
1015 Thorsten Kukuk.
1017 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
1018 completely POSIX compliant and also implemented the extended functionality
1019 to handle alternate digit representation and alternate era date formats.
1021 * Ulrich Drepper provided an implementation of the `strptime' function
1022 defined in XPG4.2 which transforms a string into a `struct tm' value.
1024 * Paul Eggert provided the tzselect shell script as part of the timezone
1025 code. The shell script makes it easy to select the correct timezone
1026 specification.
1028 * The implementation of the malloc family of functions is completely replaced
1029 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
1030 The implementation uses the mmap function (if available) and it is
1031 optimized for the use in multi threaded programs.
1033 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
1034 functions. This new functionality is usable by specifying a special
1035 salt string and it is compatible with implementation on *BSD systems.
1037 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
1038 `getsubopt' to handle second level command line options, `bsd_signal'
1039 to access BSD style `signal' functionality, the obsolete `regexp' style
1040 expression matcher.
1042 * the `lchown' function is available on system which support this
1043 functionality.
1045 * The implementation of the shadow password handling function was contributed
1046 by Ulrich Drepper.
1048 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
1050 * POSIX.1g support was added. The <sys/select.h> header is available,
1051 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
1052 implementation of `getaddrinfo'.
1053 \f
1054 Version 1.09
1056 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
1058 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
1059 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
1061 * The new function `daemon' from 4.4 BSD is useful for server programs that
1062 want to put themselves in the background.
1064 * Joel Sherrill has contributed support for several standalone boards that
1065 run without an operating system.
1067 * `printf', `scanf' and friends now accept a `q' type modifier for long
1068 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
1070 * All of the code taken from BSD (notably most of the math and networking
1071 routines) has been updated from the BSD 4.4-Lite release.
1073 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
1075 * The new functions `getdomainname' and `setdomainname' fetch or change the
1076 YP/NIS domain name. These are system calls which exist on systems which
1077 have YP (aka NIS).
1079 * The time zone data files have been updated for the latest international
1080 conventions.
1082 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
1083 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
1084 \f
1085 Version 1.08
1087 * The C library now includes support for Sun RPC, from Sun's free
1088 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
1089 are included. (There is still no support for YP.)
1091 * Tom Quinn has contributed a port of the C library to SGI machines running
1092 Irix 4 (mips-sgi-irix4).
1094 * The new `lockf' function is a simplified interface to the locking
1095 facilities of `fcntl', included for compatibility.
1097 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
1099 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
1101 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
1102 compatibility.
1104 * The error message printed by `assert' for a failed assertion now includes
1105 the name of the program (if using GNU ld) and the name of the calling
1106 function (with versions of GCC that support this).
1108 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
1110 * The library now includes the <sys/mman.h> header file and memory
1111 management functions `mmap', `munmap', `mprotect', `msync', and
1112 `madvise', on systems that support those facilities.
1114 * The interface for `mcheck' has changed slightly: the function called to
1115 abort the program when an allocation inconsistency is detected now takes
1116 an argument that indicates the type of failure. The new function
1117 `mprobe' lets you request a consistency check for a particular block at
1118 any time (checks are normally done only when you call `free' or `realloc'
1119 on a block).
1121 * It is now possible to easily cross-compile the C library, building on one
1122 system a library to run on another machine and/or operating system. All
1123 you need to do is set the variable `HOST_CC' in `configparms' to the
1124 native compiler for programs to run on the machine you are building on (a
1125 few generator programs are used on Unix systems); set `CC' to the
1126 cross-compiler.
1128 * The new function `fexecve' (only implemented on the GNU system) executes
1129 a program file given a file descriptor already open on the file.
1130 \f
1131 Version 1.07
1133 * Brendan Kehoe has contributed most of a port to the DEC Alpha
1134 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
1136 * You can set the variable `libprefix' in `configparms' to specify a prefix
1137 to be prepended to installed library files; this makes it easy to install
1138 the GNU C library to be linked as `-lgnuc' or whatever.
1140 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
1141 copies a limited number of characters from a string, and returns the
1142 address of the last character written.
1144 * You no longer need to check for whether the installed `stddef.h' is
1145 compatible with the GNU C library. configure now checks for you.
1147 * You can now define a per-stream `fileno' function to convert the
1148 stream's cookie into an integral file descriptor.
1150 * ``malloc (0)'' no longer returns a null pointer. Instead, it
1151 allocates zero bytes of storage, and returns a unique pointer which
1152 you can pass to `realloc' or `free'. The behavior is undefined if
1153 you dereference this pointer.
1155 * The C library now runs on Sony NEWS m68k machines running either
1156 NewsOS 3 or NewsOS 4.
1158 * The new `syscall' function is a system-dependent primitive function
1159 for invoking system calls. It has the canonical behavior on Unix
1160 systems, including unreliable return values for some calls (such as
1161 `pipe', `fork' and `getppid').
1163 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
1164 to `EAGAIN', which is the preferred name. On systems whose kernels
1165 use two distinct codes, the C library now translates EWOULDBLOCK to
1166 EAGAIN in every system call function.
1167 \f
1168 Version 1.06
1170 * The GNU C Library Reference Manual is now distributed with the library.
1171 `make dvi' will produce a DVI file of the printed manual.
1172 `make info' will produce Info files that you can read on line using C-h i
1173 in Emacs or the `info' program.
1174 Please send comments on the manual to bug-glibc-manual@gnu.org.
1176 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
1178 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
1180 * Jason Merrill has contributed a port to the Sequent Symmetry running
1181 Dynix version 3 (i386-sequent-dynix).
1183 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
1184 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
1186 * New function `memory_warnings' lets you arrange to get warnings when
1187 malloc is running out of memory to allocate, like Emacs gives you.
1189 * The C library now contains the relocating allocator used in Emacs 19 for
1190 its editing buffers. This allocator (ralloc) minimizes allocation
1191 overhead and fragmentation by moving allocated regions around whenever it
1192 needs to. You always refer to a ralloc'd region with a "handle" (a
1193 pointer to a pointer--an object of type `void **').
1195 * There is a new `printf' format: `%m' gives you the string corresponding
1196 to the error code in `errno'.
1198 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
1199 or `%[' conversion, but instead of filling in a fixed-sized buffer you
1200 pass, the `a' modifier says to fill in a `char **' you pass with a
1201 malloc'd string.
1203 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
1204 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
1205 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
1207 * `mkstemp' is a traditional Unix function to atomically create and open a
1208 uniquely-named temporary file.
1209 \f
1210 Version 1.05
1212 * The standard location for the file that says what the local timezone is
1213 has changed again. It is now `/usr/local/etc/localtime' (or more
1214 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
1216 * The distribution no longer contains any files with names longer than 14
1217 characters.
1219 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
1220 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
1222 * New functions `ttyslot' and `syslog' from 4.4 BSD.
1223 \f
1224 Version 1.04
1226 * The configuration process has changed quite a bit. The `configure'
1227 script is now used just like the configuration scripts for other GNU
1228 packages. The `sysdeps' directory hierarchy is much rearranged.
1229 The file `INSTALL' explains the new scheme in detail.
1231 * The header files no longer need to be processed into ANSI C and
1232 traditional C versions. There is just one set of files to install, and
1233 it will work with ANSI or old C compilers (including `gcc -traditional').
1235 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
1236 MIPS DECStation running Ultrix 4.
1238 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
1239 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
1240 made itself into a shared library.
1242 * Yet further improved support for the i386, running 4.3 BSD-like systems
1243 (such as Mach 3 with the Unix single-server), or System V.
1245 * New function `strncasecmp' to do case-insensitive string comparison
1246 with limited length.
1248 * New function `strsep' is a reentrant alternative to `strtok'.
1250 * New functions `scandir' and `alphasort' for searching directories.
1252 * New function `setenv' is a better interface to `putenv'.
1254 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
1255 function for traversing a directory tree.
1257 * The GNU obstack package is now also part of the C library.
1258 The new function `open_obstack_stream' creates a stdio stream that
1259 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
1260 formatted output directly to an obstack.
1262 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
1263 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
1265 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
1267 * The new functions `strfry' and `memfrob' do mysterious and wonderful
1268 things to your strings.
1270 * There are some new test programs: test-fseek, testmb, and testrand.
1272 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
1273 These ports are not finished, but are a good starting place for really
1274 supporting those systems.
1276 * `/etc/localtime' is now the standard location for the file that says what
1277 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
1278 This follows the general principle that `/etc' is the place for all local
1279 configuration files.
1281 * The C library header files now use `extern "C"' when used by the C++
1282 compiler, so the C library should now work with C++ code.
1284 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
1285 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
1286 in <strings.h>.)
1288 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
1289 function which uses the `merge sort' algorithm, and is said to be
1290 significantly faster than the old GNU `qsort' function. Merge sort is
1291 now the standard `qsort' function. The new algorithm can require a lot
1292 of temporary storage; so, the old sorting function is called when the
1293 required storage is not available.
1295 * The C library now includes Michael Glad's Ultra Fast Crypt, which
1296 provides the Unix `crypt' function, plus some other entry points.
1298 * The code and header files taken from 4.4 BSD have been updated with the
1299 latest files released from Berkeley.
1300 \f
1301 ----------------------------------------------------------------------
1302 Copyright information:
1304 Copyright (C) 1992-1999, 2000 Free Software Foundation, Inc.
1306 Permission is granted to anyone to make or distribute verbatim copies
1307 of this document as received, in any medium, provided that the
1308 copyright notice and this permission notice are preserved,
1309 thus giving the recipient permission to redistribute in turn.
1311 Permission is granted to distribute modified versions
1312 of this document, or of portions of it,
1313 under the above conditions, provided also that they
1314 carry prominent notices stating who last changed them.
1315 \f
1316 Local variables:
1317 version-control: never
1318 end: