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1 GNU C Library NEWS -- history of user-visible changes. 2001-7-25
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 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.
31 \f
32 Version 2.2.3
34 * Intel's IA-64 math library is largely integrated. It provides fast and
35 accurate implementatations for most basic and standard math functions
36 in float, double, and long double format.
38 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
39 and asin for the 96-bit long double format and asin, log, tan for the
40 128-bit long double format.
42 * The beginning of a last-bit accurate math library by IBM Haifa were added.
43 The basic double functions exist today. Contributed by Abraham Ziv
44 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
45 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
47 * An asynchronous name lookup library was added. The interface is designed
48 after POSIX AIO. The proposal was circulated beforehand to get comments.
49 No negative ones came in. Implemented by Ulrich Drepper.
51 * Port to S390/64bit contributed by Martin Schwidefsky
52 <schwidefsky@de.ibm.com>.
54 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
55 of functions for Linux/IA-64.
57 * The RPC code is now thread safe. Threads can now use the same service
58 of different services at the same time. Patch by Eric Norum
59 <eric.norum@usask.ca> with some help by Ulrich Drepper.
61 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
62 family of functions for Linux/S390.
64 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
65 of functions for Linux/x86.
67 * Port to Linux/CRIS contributed by Axis Communications.
68 \f
69 Version 2.2.2
71 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
72 we can now check for namespace violations and missing declarations. The
73 result is that almost all headers are now Unix-compliant (as defined in
74 the upcoming XPG6). The negative side is that some programs might need
75 corrections, too, if they depend on the incorrect form of the headers in
76 previous versions which defined too many symbols and included too many
77 other headers.
79 * regex now handles multibyte character sets correctly.
80 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
82 * iconv (the program) does now conform to the upcoming XPG6 and handles
83 charmaps. Instead of the charset names the path of charmaps can be
84 provided and the conversion happens based on this data.
85 Contributed by Ulrich Drepper.
87 * The locale program now provides detailed information about the installed
88 locales. While
90 locale -a
92 only lists the names of the supported locales
94 locale -a --verbose
96 provides details such as country, language, and codeset name.
97 Contributed by Ulrich Drepper.
98 \f
99 Version 2.2.1
101 * The gencat program now parses the input file according to the charset
102 selected by the LC_CTYPE category. This is important for stateful
103 character sets. To make generating catalogs easier there is a way
104 to overwrite the charset selected by the locale: before the first
105 message or $ quote line the catalog can contain a line like
107 $ codeset=ISO-8859-2
109 to select the charset (ISO-8859-2 in this case).
111 Implemented by Shinya Hanataka and Ulrich Drepper.
113 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
114 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
115 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
117 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
118 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
120 * The LANGUAGE environment variable is now ignored unless the locale is
121 changed from the default "C" locale.
123 * The usual bug fixes.
124 \f
125 Version 2.2
127 * Greg McGary added runtime support for bounds checking using gcc's
128 new -fbounded-pointers option. ix86 target is complete. PowerPC
129 is in progress.
131 * Thorsten Kukuk added secure mode support to nscd.
133 * The Berkeley db libraries have been removed.
135 Related, the nss_db module is now in a separate package since it
136 obviously requires a database library being available.
138 * Wide character I/O streams implemented by Ulrich Drepper.
140 * Functions from the extended socket API added by Ulrich Drepper.
142 * Functions feenableexcept and fedisableexcept to control the
143 behaviour of individual exceptions have been added by Andreas Jaeger.
145 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
147 * The resolver code has been updated from bind 8.2.3-T5B which supports
148 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
149 and Mark Kettenis.
151 This change could in some situations effect backward compatibility. Since
152 now `_res' is a thread-local instead of a global variable, modifying it
153 in one thread does not have any effect in other threads.
155 The resolver library was also extended to allow IPv6 as the transport
156 protocol for the requests. This work was done by Stig Venaas.
158 * Compatibility code for K&R C compilers has been removed from the
159 header files. A ISO C compiler is needed to use the library
160 (conforming to either C89 or C99 standard).
162 * Complete rewrite of the localedef program to support multibyte character
163 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
164 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
165 Implemented by Ulrich Drepper.
167 Bruno Haible significantly improved the generation and use of the data
168 structures for the wide character tables.
170 * Plural handling in gettext implemented by Ulrich Drepper.
172 * The utmp daemon has been removed.
174 * The port to MIPS-Linux has been finished by Andreas Jaeger.
176 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
177 and Yutaka Niibe.
179 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
181 * POSIX barriers implemented by Kaz Kylheku.
183 * POSIX spawn function family implemented by Ulrich Drepper.
185 * POSIX spinlocks are now available.
187 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
189 * the configure option --enable-kernel=X.Y.Z allows to strip out
190 compatibility for kernel versions before X.Y.Z. This is currently only
191 implemented for Linux.
193 * the sockaddr_in6 structure changed. The IPv6 working group added a new
194 field sin6_scope_id. This means that all programs using IPv6 should be
195 recompiled. Don't expect binary compatibility with previous glibc
196 versions.
198 * various conversion modules for IBM character sets contributed by
199 Masahide Washizawa.
201 * IA-64 port by Jes Sorensen and HJ Lu.
203 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
204 Compiling the GNU C Library for Linux/ia64
205 ******************************************
207 Please refer to the file INSTALL in the same directory as you found
208 this file for general information about configuring and compiling
209 glibc.
211 For general inquiries about glibc under Linux/ia64 please use the
212 following mailing list linux-ia64@linuxia64.org or one of the relevant
213 glibc mailing lists.
215 Recommended Tools for Compilation
216 =================================
218 In order for glibc-2.2 to build correctly on the ia64 you need at
219 least the following versions of the GNU tools (the :
221 * The Cygnus toolchain snapshot for the ia64 as of August 4
222 including the provided set of patches. It is however recommend
223 you use the October 24 toolchain snapshot or a more recent version.
225 OR alternatively you can try the following (the Cygnus toolchain is
226 the recommended solution):
228 * GCC and binutils, GAS and GNU LD out of CVS from
229 sources.redhat.com as of August 28, 2000 or later. The CVS tree
230 may require special patches to work properly on the ia64.
232 Configuring and compiling GNU Libc for Linux/ia64
233 =================================================
235 The library requires Linux kernel version 2.4.0-test4-000728 or
236 later to funtion properly. Besides that it support for debug libraries
237 is currently untested. Hence the following options
238 are required for configuring the library:
240 --disable-debug --enable-kernel=2.4.0
242 It is also important that you make sure the library picks up the
243 appropriate kernel header files, if you do not have recent enough
244 kernel headers in /usr/src/linux/include, you should use the
245 --with-headers=<path> option to specify the location.
247 As an example I personally use the following options to configure
248 the library:
250 --disable-debug
251 --disable-cvs
252 --enable-kernel=2.4.0
253 --host=ia64-linux
254 --enable-add-ons=yes
255 --prefix=/usr
256 --with-headers=/home/jes/linux/include
259 Good luck
261 Jes Sorensen <jes@linuxcare.com>,
262 November 14th, 2000
263 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
264 \f
265 Version 2.1.3
267 * bug fixes
269 \f
270 Version 2.1.2
272 * bug fixes
274 \f
275 Version 2.1.1
277 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
279 * New xdr functions are added; some rpc functions are now 64bit clean.
281 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
283 * Fixed known incompatibilities with glibc 2.0.
285 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
287 * Optimized a number of functions (especially the ELF dynamic loader).
289 * Update timezone data files.
291 * lots of charmaps corrections
293 * some new locale definitions and charmaps
295 \f
296 Version 2.1
298 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
299 conform to POSIX member type requirements. Symbol versions have been
300 adjusted as needed within the library, and for direct use by applications,
301 but there is potential for problems if third-party libraries use
302 struct timeval as part of their interface. This does not present
303 a problem for X and other "essential" system libraries.
305 * An additional locale model to support C++ Standard Library locale
306 model and probably more was implemented by Ulrich Drepper.
308 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
309 symbol level.
311 * Miles Bader provided the `argp' function family to support hierachical
312 command line argument parsing, layered on top of getopt.
314 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
316 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
317 numbers.
319 * scanf recognizes the %a and %A format for scanning floating point numbers.
321 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
322 information and interfaces for the available integer types.
324 * about 130 new math functions were added to implement the ISO C9x math
325 library.
327 * the new header <complex.h> contains definitions of the complex math
328 functions from ISO C 9X.
330 * the new header <tgmath.h> defines generic macros to use complex or
331 real valued functions.
333 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
335 * Andreas Jaeger provided a test suite for the math library.
337 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
339 * Ulrich Drepper added character set conversion functions (iconv).
341 * Optimized string functions have been added.
343 * The localedata addon is now part of glibc.
345 * An implementation of profiling shared libraries was added by Ulrich Drepper.
347 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
348 daemon for NSS (nscd).
350 Missing a better place here are some numbers on improvements. Under
351 Linux 2.1.125 un-tar-ing the kernel sources takes
353 user system wall
355 using local files 12.19s 6.88s 22.91s
357 using NIS 13.92s 8.91s 26.34s
359 using NIS & nscd 10.37s 7.34s 25.30s
361 using NIS+ 27.57s 30.37s 640.46s
363 using NIS+ & nscd 10.25s 7.83s 26.51s
365 using NIS & old nscd [1] 13.83s 8.32s 29.60s
367 Keep in mind that non-namelookup related operations dominate above times.
368 It was just a common complain that using NIS+ unpacking the kernel is
369 horribly slow.
371 [1] The old nscd implementation is not available anymore since it was
372 distributed with glibc up to version 2.0.98 and thus is now replaced.
374 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
376 * Mark Kettenis provided a Hesiod NSS module.
378 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
379 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
381 * rcmd can now handle netgroups (Dick Streefland).
383 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
384 Bambrough.
386 * Support for the IPv6 protocol has been added to the socket API, as per the
387 latest draft standards.
389 * Support for Linux 2.2 has been added.
391 * Interface changes relative to the latest 2.0.x release:
392 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
393 addseverity NEW: Unix98
394 alphasort64 NEW: LFS
395 argp_err_exit_status NEW: argp, GNU ext
396 argp_error NEW: argp, GNU ext
397 argp_failure NEW: argp, GNU ext
398 argp_help NEW: argp, GNU ext
399 argp_parse NEW: argp, GNU ext
400 argp_program_bug_address NEW: argp, GNU ext
401 argp_program_version NEW: argp, GNU ext
402 argp_program_version_hook NEW: argp, GNU ext
403 argp_state_help NEW: argp, GNU ext
404 argp_usage NEW: argp, GNU ext
405 authdes_create NEW: Secure RPC
406 authdes_getucred NEW: Secure RPC
407 authdes_pk_create NEW: Secure RPC
408 backtrace NEW: GNU ext.
409 backtrace_symbols NEW: GNU ext.
410 backtrace_symbols_fd NEW: GNU ext.
411 cacos NEW: ISO C 9x
412 cacosf NEW: ISO C 9x
413 cacosh NEW: ISO C 9x
414 cacoshf NEW: ISO C 9x
415 cacoshl NEW: ISO C 9x
416 cacosl NEW: ISO C 9x
417 capget NEW: kernel
418 capset NEW: kernel
419 carg NEW: ISO C 9x
420 cargf NEW: ISO C 9x
421 cargl NEW: ISO C 9x
422 casin NEW: ISO C 9x
423 casinf NEW: ISO C 9x
424 casinh NEW: ISO C 9x
425 casinhf NEW: ISO C 9x
426 casinhl NEW: ISO C 9x
427 casinl NEW: ISO C 9x
428 catan NEW: ISO C 9x
429 catanf NEW: ISO C 9x
430 catanh NEW: ISO C 9x
431 catanhf NEW: ISO C 9x
432 catanhl NEW: ISO C 9x
433 catanl NEW: ISO C 9x
434 cbc_crypt NEW: Secure RPC
435 ccos NEW: ISO C 9x
436 ccosf NEW: ISO C 9x
437 ccosh NEW: ISO C 9x
438 ccoshf NEW: ISO C 9x
439 ccoshl NEW: ISO C 9x
440 ccosl NEW: ISO C 9x
441 cexp NEW: ISO C 9x
442 cexpf NEW: ISO C 9x
443 cexpl NEW: ISO C 9x
444 cimag NEW: ISO C 9x
445 cimagf NEW: ISO C 9x
446 cimagl NEW: ISO C 9x
447 clearerr_locked REMOVED
448 clntunix_create NEW: sunrpc ext
449 clog NEW: ISO C 9x
450 clog10 NEW: ISO C 9x
451 clog10f NEW: ISO C 9x
452 clog10l NEW: ISO C 9x
453 clogf NEW: ISO C 9x
454 clogl NEW: ISO C 9x
455 conj NEW: ISO C 9x
456 conjf NEW: ISO C 9x
457 conjl NEW: ISO C 9x
458 cpow NEW: ISO C 9x
459 cpowf NEW: ISO C 9x
460 cpowl NEW: ISO C 9x
461 cproj NEW: ISO C 9x
462 cprojf NEW: ISO C 9x
463 cprojl NEW: ISO C 9x
464 creal NEW: ISO C 9x
465 crealf NEW: ISO C 9x
466 creall NEW: ISO C 9x
467 creat64 NEW: LFS
468 csin NEW: ISO C 9x
469 csinf NEW: ISO C 9x
470 csinh NEW: ISO C 9x
471 csinhf NEW: ISO C 9x
472 csinhl NEW: ISO C 9x
473 csinl NEW: ISO C 9x
474 csqrt NEW: ISO C 9x
475 csqrtf NEW: ISO C 9x
476 csqrtl NEW: ISO C 9x
477 ctan NEW: ISO C 9x
478 ctanf NEW: ISO C 9x
479 ctanh NEW: ISO C 9x
480 ctanhf NEW: ISO C 9x
481 ctanhl NEW: ISO C 9x
482 ctanl NEW: ISO C 9x
483 des_setparity NEW: Secure RPC
484 ecb_crypt NEW: Secure RPC
485 endutxent NEW: Unix98
486 exp10 NEW: ISO C 9x
487 exp10f NEW: ISO C 9x
488 exp10l NEW: ISO C 9x
489 exp2 NEW: ISO C 9x
490 exp2f NEW: ISO C 9x
491 exp2l NEW: ISO C 9x
492 fattach NEW: STREAMS
493 fdetach NEW: STREAMS
494 fdim NEW: ISO C 9x
495 fdimf NEW: ISO C 9x
496 fdiml NEW: ISO C 9x
497 feclearexcept NEW: ISO C 9x
498 fegetenv NEW: ISO C 9x
499 fegetexceptflag NEW: ISO C 9x
500 fegetround NEW: ISO C 9x
501 feholdexcept NEW: ISO C 9x
502 feof_locked REMOVED
503 feraiseexcept NEW: ISO C 9x
504 ferror_locked REMOVED
505 fesetenv NEW: ISO C 9x
506 fesetexceptflag NEW: ISO C 9x
507 fesetround NEW: ISO C 9x
508 fetestexcept NEW: ISO C 9x
509 feupdateenv NEW: ISO C 9x
510 fflush_locked REMOVED
511 ffsl NEW: GNU ext.
512 ffsll NEW: GNU ext.
513 fgetpos64 NEW: LFS
514 fgets_unlocked NEW: GNU ext.
515 fileno_locked REMOVED
516 fma NEW: ISO C 9x
517 fmaf NEW: ISO C 9x
518 fmal NEW: ISO C 9x
519 fmax NEW: ISO C 9x
520 fmaxf NEW: ISO C 9x
521 fmaxl NEW: ISO C 9x
522 fmin NEW: ISO C 9x
523 fminf NEW: ISO C 9x
524 fminl NEW: ISO C 9x
525 fmtmsg NEW: Unix98
526 fopen64 NEW: LFS
527 fputc_locked REMOVED
528 fputs_unlocked NEW: GNU ext.
529 fread_unlocked NEW: GNU ext.
530 freopen64 NEW: LFS
531 fseeko NEW: Unix98
532 fsetpos64 NEW: LFS
533 fstatfs64 NEW: LFS
534 fstatvfs NEW: Unix98
535 fstatvfs64 NEW: LFS
536 ftello NEW: Unix98
537 ftello64 NEW: LFS
538 ftruncate64 NEW: LFS
539 ftw64 NEW: LFS
540 fwrite_unlocked NEW: GNU ext.
541 gai_strerror NEW: IPv6
542 gamma_r REMOVED
543 gammaf_r REMOVED
544 gammal_r REMOVED
545 getchar_locked REMOVED
546 getdate NEW: Unix98
547 getdate_err NEW: Unix98
548 getdate_r NEW: GNU ext.
549 getmsg NEW: STREAMS
550 getnameinfo NEW: IPv6
551 getnetname NEW: Secure RPC
552 getpmsg NEW: STREAMS
553 getpt NEW: Unix98 PTY
554 getrlimit64 NEW: LFS
555 getutxent NEW: Unix98
556 getutxid NEW: Unix98
557 getutxline NEW: Unix98
558 glob64 NEW: GNU ext.
559 globfree64 NEW: GNU ext.
560 gnu_get_libc_release NEW: GNU ext.
561 gnu_get_libc_version NEW: GNU ext.
562 grantpt NEW: Unix98 PTY
563 host2netname NEW: Secure RPC
564 iconv NEW: iconv
565 iconv_close NEW: iconv
566 iconv_open NEW: iconv
567 if_freenameindex NEW: IPv6
568 if_indextoname NEW: IPv6
569 if_nameindex NEW: IPv6
570 if_nametoindex NEW: IPv6
571 in6addr_any NEW: IPv6
572 in6addr_loopback NEW: IPv6
573 inet6_isipv4mapped NEW: IPv6
574 isastream NEW: STREAMS
575 iswblank NEW: GNU ext.
576 key_decryptsession NEW: Secure RPC
577 key_decryptsession_pk NEW: Secure RPC
578 key_encryptsession NEW: Secure RPC
579 key_encryptsession_pk NEW: Secure RPC
580 key_gendes NEW: Secure RPC
581 key_get_conv NEW: Secure RPC
582 key_secretkey_is_set NEW: Secure RPC
583 key_setnet NEW: Secure RPC
584 key_setsecret NEW: Secure RPC
585 llrint NEW: ISO C 9x
586 llrintf NEW: ISO C 9x
587 llrintl NEW: ISO C 9x
588 llround NEW: ISO C 9x
589 llroundf NEW: ISO C 9x
590 llroundl NEW: ISO C 9x
591 log2 NEW: ISO C 9x
592 log2f NEW: ISO C 9x
593 log2l NEW: ISO C 9x
594 lrint NEW: ISO C 9x
595 lrintf NEW: ISO C 9x
596 lrintl NEW: ISO C 9x
597 lround NEW: ISO C 9x
598 lroundf NEW: ISO C 9x
599 lroundl NEW: ISO C 9x
600 lseek64 NEW: LFS
601 makecontext NEW: Unix98
602 mempcpy NEW: GNU ext.
603 mmap64 NEW: LFS
604 moncontrol REMOVED
605 modify_ldt NEW: kernel
606 nan NEW: ISO C 9x
607 nanf NEW: ISO C 9x
608 nanl NEW: ISO C 9x
609 nearbyint NEW: ISO C 9x
610 nearbyintf NEW: ISO C 9x
611 nearbyintl NEW: ISO C 9x
612 netname2host NEW: Secure RPC
613 netname2user NEW: Secure RPC
614 nexttoward NEW: ISO C 9x
615 nexttowardf NEW: ISO C 9x
616 nexttowardl NEW: ISO C 9x
617 nftw NEW: Unix98
618 nftw64 NEW: LFS
619 open64 NEW: LFS
620 passwd2des NEW: Secure RPC
621 pow10 NEW: GNU ext.
622 pow10f NEW: GNU ext.
623 pow10l NEW: GNU ext.
624 pread NEW: Unix98
625 pread64 NEW: LFS
626 printf_size NEW: GNU ext.
627 printf_size_info NEW: GNU ext.
628 profil_counter REMOVED
629 pthread_mutexattr_getkind_np REPLACED
630 pthread_mutexattr_setkind_np REPLACED
631 ptsname NEW: Unix98 PTY
632 ptsname_r NEW: Unix98 PTY
633 putc_locked REMOVED
634 putchar_locked REMOVED
635 putgrent NEW: GNU ext.
636 putmsg NEW: STREAMS
637 putpmsg NEW: STREAMS
638 pututxline NEW: Unix98
639 pwrite NEW: Unix98
640 pwrite64 NEW: LFS
641 readdir64 NEW: LFS
642 readdir64_r NEW: LFS
643 remquo NEW: ISO C 9x
644 remquof NEW: ISO C 9x
645 remquol NEW: ISO C 9x
646 round NEW: ISO C 9x
647 roundf NEW: ISO C 9x
648 roundl NEW: ISO C 9x
649 rtime NEW: GNU ext.
650 scalbln NEW: ISO C 9x
651 scalblnf NEW: ISO C 9x
652 scalblnl NEW: ISO C 9x
653 scandir64 NEW: LFS
654 sendfile NEW: kernel
655 setcontext NEW: Unix98
656 setrlimit64 NEW: LFS
657 setutxent NEW: Unix98
658 sighold NEW: Unix98
659 sigignore NEW: Unix98
660 sigqueue NEW: POSIX.1b
661 sigrelse NEW: Unix98
662 sigset NEW: POSIX.1b
663 sigtimedwait NEW: POSIX.1b
664 sigwaitinfo NEW: POSIX.1b
665 sincos NEW: GNU ext.
666 sincosf NEW: GNU ext.
667 sincosl NEW: GNU ext.
668 statfs64 NEW: LFS
669 statvfs NEW: Unix98
670 statvfs64 NEW: LFS
671 strcasestr NEW: GNU ext.
672 strtoimax NEW: ISO C 9x
673 strtoumax NEW: ISO C 9x
674 strverscmp NEW: GNU ext.
675 svcauthdes_stats NEW: Secure RPC
676 svcunix_create NEW: sunrpc etx
677 svcunixfd_create NEW: sunrpc ext
678 swapcontext NEW: Unix98
679 tcgetsid NEW: Unix98 PTY
680 tdestroy NEW: GNU ext.
681 tgamma NEW: ISO C 9x
682 tgammaf NEW: ISO C 9x
683 tgammal NEW: ISO C 9x
684 tmpfile64 NEW: LFS
685 trunc NEW: ISO C 9x
686 truncate64 NEW: LFS
687 truncf NEW: ISO C 9x
688 truncl NEW: ISO C 9x
689 umount2 NEW: kernel
690 unlockpt NEW: Unix98 PTY
691 updwtmpx NEW: Unix98
692 user2netname NEW: Secure RPC
693 utmpxname NEW: Unix98
694 versionsort NEW: GNU ext.
695 versionsort64 NEW: GNU ext.
696 waitid NEW: Unix98
697 wcscasecmp NEW: GNU ext.
698 wcsncasecmp NEW: GNU ext.
699 wcsnlen NEW: GNU ext.
700 wcstoimax NEW: ISO C 9x
701 wcstoll NEW: ISO C 9x
702 wcstoull NEW: ISO C 9x
703 wcstoumax NEW: ISO C 9x
704 wcswcs NEW: Unix98
705 wordexp NEW: POSIX.2
706 wordfree NEW: POSIX.2
707 write_profiling REMOVED
708 xdecrypt NEW: Secure RPC
709 xdr_authdes_cred NEW: Secure RPC
710 xdr_authdes_verf NEW: Secure RPC
711 xdr_cryptkeyarg NEW: Secure RPC
712 xdr_cryptkeyarg2 NEW: Secure RPC
713 xdr_cryptkeyres NEW: Secure RPC
714 xdr_getcredres NEW: Secure RPC
715 xdr_key_netstarg NEW: Secure RPC
716 xdr_key_netstres NEW: Secure RPC
717 xdr_keybuf NEW: Secure RPC
718 xdr_keystatus NEW: Secure RPC
719 xdr_netnamestr NEW: Secure RPC
720 xdr_sizeof NEW: Secure RPC
721 xdr_unixcred NEW: sunrpc ext
722 xencrypt NEW: Secure RPC
723 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
724 \f
725 Version 2.0.6
727 * more bug fixes
729 \f
730 Version 2.0.5
732 * more bug fixes
734 * inet_ntoa is thread-safe
736 * updwtmp is moved from libutil to libc
738 * rewrite of cbrt function
740 * update of timezone data
741 \f
742 Version 2.0.4
744 * more bug fixes
745 \f
746 Version 2.0.3
748 * more bug fixes
749 \f
750 Version 2.0.2
752 * more bug fixes
754 * add atoll function
756 * fix complex problems in Berkeley DB code
758 * fix math functions
759 \f
760 Version 2.0.1
762 * fixed lots of header problems (especially Linux/GNU specific)
764 * dynamic loader preserves all registers
766 * Roland McGrath provided support for handling of auxiliary objects in
767 the ELF dynamic loader.
769 * support for parallel builds is improved
770 \f
771 Version 2.0
773 * GNU extensions are no longer declared by default. To enable them you
774 must define the macro `_GNU_SOURCE' in your program or compile with
775 `-D_GNU_SOURCE'.
777 * The library has changed from using GNU ld symbol aliases to using weak
778 symbols where available. The ELF object file format supports weak
779 symbols; GNU ld also supports weak symbols in the a.out format. (There
780 is also now support for other GNU ld extensions in ELF. Use the
781 `--with-elf' option to configure to indicate you have ELF, and
782 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
783 of many files which contained only symbol aliases, reducing the size of
784 the source and the compiled library; many other files were renamed to
785 less cryptic names previously occupied by the symbol alias files.
786 There is a new header file <elf.h> for programs which operate on
787 files in the ELF format.
789 * Converted to Autoconf version 2, so `configure' has more options.
790 Run `configure --help' to see the details.
792 * The library can now be configured to build profiling, highly-optimized
793 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
794 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
795 `configure' enable building these extra libraries. The shared library is
796 built by default when using both ELF and GNU ld. When shared libraries
797 are enabled, the new library `-ldl' is available for arbitrary run-time
798 loading of shared objects; its interface is defined in <dlfcn.h>. The
799 new header file <link.h> gives access to the internals of the run-time
800 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
801 application of same name on other systems and it provides information
802 about dynamically linked binaries.
804 * The C library now provides the run-time support code for profiling
805 executables compiled with `-pg'. Programs can control the profiling code
806 through the interface in <sys/gmon.h>. The `gmon.out' files written by
807 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
808 the support for this file format was contributed by David Mosberger-Tang.
810 * The math code has been replaced with a math library based on fdlibm from
811 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
812 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
813 functions. The math functions now reside in a separate library, so
814 programs using them will need to use `-lm' their linking commands.
816 * John C. Bowman contributed optimized ix87 assembler inline functions.
818 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
819 mechanism similar to that found in Solaris 2. This is now used for the
820 group, passwd, hosts, networks, services, protocols, rpc, ethers,
821 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
822 file controls what services are used for each individual database. This
823 works by loading shared libraries with names specified in `nsswitch.conf',
824 so service modules can be changed or added at any time without even
825 relinking any program. Currently there are the file, db, and NIS based
826 NSS services available.
828 * The new functions `strtoq' and `strtouq' parse integer values from
829 strings, like `strtol' and `strtoul', but they return `long long int' and
830 `unsigned long long int' values, respectively (64-bit quantities).
832 * The new functions `strtof' and `strtold' parse floating-point values from
833 strings, like `strtod', but they return `float' and `long double' values,
834 respectively (on some machines `double' and `long double' are the same).
836 * Ulrich Drepper has contributed new implementations of the floating-point
837 printing and reading code used in the `printf' family of functions and
838 `strtod', `strtof', and `strtold'. These new functions are perfectly
839 accurate, and much faster than the old ones.
841 * The implementation of the POSIX locale model was completely rewritten by
842 Ulrich Drepper. This includes the new programs `localedef' and `locale'
843 to compile the POSIX locale definition.
845 * The former dummy implementations of the strcoll and strxfrm function are
846 now replaced by fully functional code contributed by Ulrich Drepper. The
847 collation information comes from the POSIX locale definitions.
849 * The new header <langinfo.h> defines an interface for accessing
850 various locale-dependent data (using the locale chosen with `setlocale').
852 * Ulrich Drepper has contributed a new suite of functions for operation on
853 wide-character and multibyte-character strings, in <wchar.h>;
854 and classification and case conversion of wide characters, in <wctype.h>.
855 These new functions are conforming to the ISO C, Amendement 1 specification.
857 * There is now a second implementation of the standard I/O library available.
858 It comes from GNU libg++ as was written by Per Bothner, heavily modified
859 by Hongjiu Lu and made thread safe by Ulrich Drepper.
861 * You can now use positional parameter specifications in format strings
862 for the `printf' and `scanf' families of functions. For example,
863 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
864 ``Number 6, Mr Jones''. This is mainly useful when providing different
865 format strings for different languages, whose grammars may dictate
866 different orderings of the values being printed. To support this
867 feature, the interface for `register_printf_handler' has changed; see
868 the header file <printf.h> for details.
870 * The `printf' and `scanf' families of functions now understand a new
871 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
872 to group numbers as indicated by the locale; for `scanf' and friends, this
873 says to accept as valid only a number with all the proper grouping
874 separators in the right places. In the default "C" locale, numbers are
875 not grouped; but locales for specific countries will define the usual
876 conventions (i.e. separate thousands with `,' in the US locale).
878 * The pgrp functions have been regularized, slightly incompatibly but much
879 less confusingly. The core functions are now `getpgid' and `setpgid',
880 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
881 argument) and BSD `setpgrp' (identical to `setpgid') functions are
882 provided for compatibility. There is no longer an incompatible `getpgrp'
883 with an argument declared under _BSD_SOURCE; no BSD code uses it.
885 * The new header file <fts.h> and suite of functions simplify programs that
886 operate on directory trees. This code comes from 4.4 BSD.
888 * The resolver code has been updated from the BIND 4.9.5-P1 release.
889 Parts of the code were heavily modified by Ulrich Drepper to fit in the
890 NSS scheme used in glibc.
892 * There is a new malloc debugging hook `__memalign_hook'.
894 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
895 `unsigned int' in <sys/types.h>. These are for compatibility only and
896 their use is discouraged.
898 * The `-lmcheck' library to enable standard malloc debugging hooks is now
899 done differently, so that it works even without GNU ld.
901 * New function `euidaccess' checks allowed access to a file like `access',
902 but using the effective IDs instead of the real IDs.
904 * The time zone data files have been updated for the latest and greatest
905 local time conventions of the countries of the world.
907 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
908 see <dirent.h>.
910 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
911 for formatting floating-point numbers. They are provided only for
912 compatibility; new programs should use `sprintf' instead. There are
913 also equivalent function for the `long double' floating-point type and
914 all functions also exist in a reentrant form.
916 * The new auxiliary library `-lutil' from 4.4 BSD contains various
917 functions for maintaining the login-record files (primarily of use to
918 system programs such as `login'), and convenient functions for
919 allocating and initializing a pseudo-terminal (pty) device.
921 * Ulrich Drepper has contributed new support for System V style
922 shared memory and IPC on systems that support it.
924 * Ulrich Drepper has contributed several miscellaneous new functions found
925 in System V: The `hsearch' family of functions provide an effective
926 implementation of hash tables; `a64l' and `l64a' provide a very simple
927 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
928 number generator.
930 * Ulrich Drepper has contributed new reentrant counterparts for the
931 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
933 * Ulrich Drepper has contributed new, highly-optimized versions of several
934 string functions for the i486/Pentium family of processors.
936 * Ulrich Drepper has updated the Linux-specific code, based largely
937 on work done in Hongjiu Lu's version of GNU libc for Linux.
938 The GNU library now supports Linux versions 2.0.10 and later,
939 using the ELF object file format (i[3456]86-*-linux).
941 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
943 * David Mosberger-Tang and Richard Henderson have ported the C library
944 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
945 dynamic linking support for ELF/Alpha.
947 * Richard Henderson contributed several Alpha optimized assembler function
948 for arithmetic and string handling.
950 * Ulrich Drepper has contributed a new set of message catalog functions to
951 support multiple languages using the <libintl.h> interface, for use with
952 his new package GNU gettext. Translation volunteers have contributed
953 catalogs of the library's messages in Spanish, German, and Korean.
955 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
956 program and the `catgets' function for reading the catalog files it
957 creates. (The <libintl.h> interface is preferred; we include the
958 <nl_types.h> interface using `catgets' only for source compatibility with
959 programs already written to use it.)
961 * New header file <values.h> gives SVID-compatible names for <limits.h>
962 constants.
964 * Various new macros, declarations, and small header files for compatibility
965 with 4.4 BSD.
967 * New function `group_member' is a convenient way to check if a process has
968 a given effective group ID.
970 * When using GCC 2.7 and later, the socket functions are now declared in a
971 special way so that passing an argument of type `struct sockaddr_in *',
972 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
973 `struct sockaddr *' type, does not generate a type-clash warning.
975 * New function `error' declared in header file <error.h> is a convenient
976 function for printing error messages and optionally exiting; this is the
977 canonical function used in GNU programs. The new functions `err', `warn',
978 and friends in header file <err.h> are the canonical 4.4 BSD interface for
979 doing the same thing.
981 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
982 POSIX.2 `glob' function to do ~ and {...} expansion.
984 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
985 `clearenv' which is used in POSIX.9 is also available.
987 * New function `getsid' returns session ID number on systems that support it.
989 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
990 files <db.h> and <mpool.h> provide a rich set of functions for several
991 types of simple databases stored in memory and in files, and <ndbm.h> is
992 an old `ndbm'-compatible interface using the `db' functions. Link with
993 `-ldb' to get these functions.
995 * New macro `strdupa' copies a string like `strdup', but uses local stack
996 space from `alloca' instead of dynamic heap space from `malloc'.
998 * New function `strnlen' is like `strlen' but searches only a given maximum
999 number of characters for the null terminator. `stpncpy', `strndup' and
1000 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1001 function.
1003 * New function `statfs' in header <sys/statfs.h>.
1005 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1006 provide convenient functions for operating on blocks of null-terminated
1007 strings.
1009 * A new suite of functions in <utmp.h> handle all the details of reading
1010 and writing the utmp file.
1012 * An implementation of the NIS/YP(tm) based NSS service was contributed by
1013 Thorsten Kukuk.
1015 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
1016 completely POSIX compliant and also implemented the extended functionality
1017 to handle alternate digit representation and alternate era date formats.
1019 * Ulrich Drepper provided an implementation of the `strptime' function
1020 defined in XPG4.2 which transforms a string into a `struct tm' value.
1022 * Paul Eggert provided the tzselect shell script as part of the timezone
1023 code. The shell script makes it easy to select the correct timezone
1024 specification.
1026 * The implementation of the malloc family of functions is completely replaced
1027 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
1028 The implementation uses the mmap function (if available) and it is
1029 optimized for the use in multi threaded programs.
1031 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
1032 functions. This new functionality is usable by specifying a special
1033 salt string and it is compatible with implementation on *BSD systems.
1035 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
1036 `getsubopt' to handle second level command line options, `bsd_signal'
1037 to access BSD style `signal' functionality, the obsolete `regexp' style
1038 expression matcher.
1040 * the `lchown' function is available on system which support this
1041 functionality.
1043 * The implementation of the shadow password handling function was contributed
1044 by Ulrich Drepper.
1046 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
1048 * POSIX.1g support was added. The <sys/select.h> header is available,
1049 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
1050 implementation of `getaddrinfo'.
1051 \f
1052 Version 1.09
1054 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
1056 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
1057 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
1059 * The new function `daemon' from 4.4 BSD is useful for server programs that
1060 want to put themselves in the background.
1062 * Joel Sherrill has contributed support for several standalone boards that
1063 run without an operating system.
1065 * `printf', `scanf' and friends now accept a `q' type modifier for long
1066 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
1068 * All of the code taken from BSD (notably most of the math and networking
1069 routines) has been updated from the BSD 4.4-Lite release.
1071 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
1073 * The new functions `getdomainname' and `setdomainname' fetch or change the
1074 YP/NIS domain name. These are system calls which exist on systems which
1075 have YP (aka NIS).
1077 * The time zone data files have been updated for the latest international
1078 conventions.
1080 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
1081 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
1082 \f
1083 Version 1.08
1085 * The C library now includes support for Sun RPC, from Sun's free
1086 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
1087 are included. (There is still no support for YP.)
1089 * Tom Quinn has contributed a port of the C library to SGI machines running
1090 Irix 4 (mips-sgi-irix4).
1092 * The new `lockf' function is a simplified interface to the locking
1093 facilities of `fcntl', included for compatibility.
1095 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
1097 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
1099 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
1100 compatibility.
1102 * The error message printed by `assert' for a failed assertion now includes
1103 the name of the program (if using GNU ld) and the name of the calling
1104 function (with versions of GCC that support this).
1106 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
1108 * The library now includes the <sys/mman.h> header file and memory
1109 management functions `mmap', `munmap', `mprotect', `msync', and
1110 `madvise', on systems that support those facilities.
1112 * The interface for `mcheck' has changed slightly: the function called to
1113 abort the program when an allocation inconsistency is detected now takes
1114 an argument that indicates the type of failure. The new function
1115 `mprobe' lets you request a consistency check for a particular block at
1116 any time (checks are normally done only when you call `free' or `realloc'
1117 on a block).
1119 * It is now possible to easily cross-compile the C library, building on one
1120 system a library to run on another machine and/or operating system. All
1121 you need to do is set the variable `HOST_CC' in `configparms' to the
1122 native compiler for programs to run on the machine you are building on (a
1123 few generator programs are used on Unix systems); set `CC' to the
1124 cross-compiler.
1126 * The new function `fexecve' (only implemented on the GNU system) executes
1127 a program file given a file descriptor already open on the file.
1128 \f
1129 Version 1.07
1131 * Brendan Kehoe has contributed most of a port to the DEC Alpha
1132 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
1134 * You can set the variable `libprefix' in `configparms' to specify a prefix
1135 to be prepended to installed library files; this makes it easy to install
1136 the GNU C library to be linked as `-lgnuc' or whatever.
1138 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
1139 copies a limited number of characters from a string, and returns the
1140 address of the last character written.
1142 * You no longer need to check for whether the installed `stddef.h' is
1143 compatible with the GNU C library. configure now checks for you.
1145 * You can now define a per-stream `fileno' function to convert the
1146 stream's cookie into an integral file descriptor.
1148 * ``malloc (0)'' no longer returns a null pointer. Instead, it
1149 allocates zero bytes of storage, and returns a unique pointer which
1150 you can pass to `realloc' or `free'. The behavior is undefined if
1151 you dereference this pointer.
1153 * The C library now runs on Sony NEWS m68k machines running either
1154 NewsOS 3 or NewsOS 4.
1156 * The new `syscall' function is a system-dependent primitive function
1157 for invoking system calls. It has the canonical behavior on Unix
1158 systems, including unreliable return values for some calls (such as
1159 `pipe', `fork' and `getppid').
1161 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
1162 to `EAGAIN', which is the preferred name. On systems whose kernels
1163 use two distinct codes, the C library now translates EWOULDBLOCK to
1164 EAGAIN in every system call function.
1165 \f
1166 Version 1.06
1168 * The GNU C Library Reference Manual is now distributed with the library.
1169 `make dvi' will produce a DVI file of the printed manual.
1170 `make info' will produce Info files that you can read on line using C-h i
1171 in Emacs or the `info' program.
1172 Please send comments on the manual to bug-glibc-manual@gnu.org.
1174 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
1176 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
1178 * Jason Merrill has contributed a port to the Sequent Symmetry running
1179 Dynix version 3 (i386-sequent-dynix).
1181 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
1182 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
1184 * New function `memory_warnings' lets you arrange to get warnings when
1185 malloc is running out of memory to allocate, like Emacs gives you.
1187 * The C library now contains the relocating allocator used in Emacs 19 for
1188 its editing buffers. This allocator (ralloc) minimizes allocation
1189 overhead and fragmentation by moving allocated regions around whenever it
1190 needs to. You always refer to a ralloc'd region with a "handle" (a
1191 pointer to a pointer--an object of type `void **').
1193 * There is a new `printf' format: `%m' gives you the string corresponding
1194 to the error code in `errno'.
1196 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
1197 or `%[' conversion, but instead of filling in a fixed-sized buffer you
1198 pass, the `a' modifier says to fill in a `char **' you pass with a
1199 malloc'd string.
1201 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
1202 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
1203 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
1205 * `mkstemp' is a traditional Unix function to atomically create and open a
1206 uniquely-named temporary file.
1207 \f
1208 Version 1.05
1210 * The standard location for the file that says what the local timezone is
1211 has changed again. It is now `/usr/local/etc/localtime' (or more
1212 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
1214 * The distribution no longer contains any files with names longer than 14
1215 characters.
1217 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
1218 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
1220 * New functions `ttyslot' and `syslog' from 4.4 BSD.
1221 \f
1222 Version 1.04
1224 * The configuration process has changed quite a bit. The `configure'
1225 script is now used just like the configuration scripts for other GNU
1226 packages. The `sysdeps' directory hierarchy is much rearranged.
1227 The file `INSTALL' explains the new scheme in detail.
1229 * The header files no longer need to be processed into ANSI C and
1230 traditional C versions. There is just one set of files to install, and
1231 it will work with ANSI or old C compilers (including `gcc -traditional').
1233 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
1234 MIPS DECStation running Ultrix 4.
1236 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
1237 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
1238 made itself into a shared library.
1240 * Yet further improved support for the i386, running 4.3 BSD-like systems
1241 (such as Mach 3 with the Unix single-server), or System V.
1243 * New function `strncasecmp' to do case-insensitive string comparison
1244 with limited length.
1246 * New function `strsep' is a reentrant alternative to `strtok'.
1248 * New functions `scandir' and `alphasort' for searching directories.
1250 * New function `setenv' is a better interface to `putenv'.
1252 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
1253 function for traversing a directory tree.
1255 * The GNU obstack package is now also part of the C library.
1256 The new function `open_obstack_stream' creates a stdio stream that
1257 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
1258 formatted output directly to an obstack.
1260 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
1261 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
1263 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
1265 * The new functions `strfry' and `memfrob' do mysterious and wonderful
1266 things to your strings.
1268 * There are some new test programs: test-fseek, testmb, and testrand.
1270 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
1271 These ports are not finished, but are a good starting place for really
1272 supporting those systems.
1274 * `/etc/localtime' is now the standard location for the file that says what
1275 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
1276 This follows the general principle that `/etc' is the place for all local
1277 configuration files.
1279 * The C library header files now use `extern "C"' when used by the C++
1280 compiler, so the C library should now work with C++ code.
1282 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
1283 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
1284 in <strings.h>.)
1286 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
1287 function which uses the `merge sort' algorithm, and is said to be
1288 significantly faster than the old GNU `qsort' function. Merge sort is
1289 now the standard `qsort' function. The new algorithm can require a lot
1290 of temporary storage; so, the old sorting function is called when the
1291 required storage is not available.
1293 * The C library now includes Michael Glad's Ultra Fast Crypt, which
1294 provides the Unix `crypt' function, plus some other entry points.
1296 * The code and header files taken from 4.4 BSD have been updated with the
1297 latest files released from Berkeley.
1298 \f
1299 ----------------------------------------------------------------------
1300 Copyright information:
1302 Copyright (C) 1992-1999, 2000 Free Software Foundation, Inc.
1304 Permission is granted to anyone to make or distribute verbatim copies
1305 of this document as received, in any medium, provided that the
1306 copyright notice and this permission notice are preserved,
1307 thus giving the recipient permission to redistribute in turn.
1309 Permission is granted to distribute modified versions
1310 of this document, or of portions of it,
1311 under the above conditions, provided also that they
1312 carry prominent notices stating who last changed them.
1313 \f
1314 Local variables:
1315 version-control: never
1316 end: