NEWS

   1 GNU C Library NEWS -- history of user-visible changes.  2008-5-12
   2 Copyright (C) 1992-2007, 2008 Free Software Foundation, Inc.
   3 See the end for copying conditions.
   4
   5 Please send GNU C library bug reports via <http://sources.redhat.com/bugzilla/>
   6 using `glibc' in the "product" field.
   7 \f
   8 Version 2.9
   9
  10 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
  11   up at the same time.  Implemented by Ulrich Drepper.
  12
  13 * TLS descriptors for LD and GD on x86 and x86-64.
  14   Implemented by Alexandre Oliva.
  15 \f
  16 Version 2.8
  17
  18 * New locales: bo_CN, bo_IN.
  19
  20 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
  21
  22 * Sorting rules for some Indian languages (Devanagari and Gujarati).
  23   Implemented by Pravin Satpute.
  24
  25 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
  26
  27 * nscd caches now all timeouts for DNS entries
  28   Implemented by Ulrich Drepper.
  29
  30 * nscd is more efficient and wakes up less often.
  31   Implemented by Ulrich Drepper.
  32
  33 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
  34   vdprintf, and obstack_vprintf.
  35   Implemented by Jakub Jelinek.
  36
  37 * Faster memset for x86-64.
  38   Implemented by Harsha Jagasia and H.J. Lu.
  39
  40 * Faster memcpy on x86.
  41   Implemented by Ulrich Drepper.
  42
  43 * ARG_MAX is not anymore constant on Linux.  Use sysconf(_SC_ARG_MAX).
  44   Implemented by Ulrich Drepper.
  45
  46 * Faster sqrt and sqrtf implemention for some PPC variants.
  47   Implemented by Stephen Munroe.
  48 \f
  49 Version 2.7
  50
  51 * More checking functions: fread, fread_unlocked, open*, mq_open.
  52   Implemented by Jakub Jelinek and Ulrich Drepper.
  53
  54 * Extend fortification to C++.  Implemented by Jakub Jelinek.
  55
  56 * Implement 'm' modifier for scanf.  Add stricter C99/SUS compliance
  57   by not recognizing 'a' as a modifier when those specs are requested.
  58   Implemented by Jakub Jelinek.
  59
  60 * PPC optimizations to math and string functions.
  61   Implemented by Steven Munroe.
  62
  63 * New interfaces: mkostemp, mkostemp64.  Like mkstemp* but allow additional
  64   options to be passed.  Implemented by Ulrich Drepper.
  65
  66 * More CPU set manipulation functions.  Implemented by Ulrich Drepper.
  67
  68 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
  69   Implemented by Ulrich Drepper.
  70
  71 * Handle private futexes in the NPTL implementation.
  72   Implemented by Jakub Jelinek and Ulrich Drepper.
  73
  74 * Add support for O_CLOEXEC.  Implement in Hurd.  Use throughout libc.
  75   Implemented by Roland McGrath and Ulrich Drepper.
  76
  77 * Linux/x86-64 vDSO support.  Implemented by Ulrich Drepper.
  78
  79 * SHA-256 and SHA-512 based password encryption.
  80   Implemented by Ulrich Drepper.
  81
  82 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
  83   ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
  84   yo_NG.
  85
  86 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
  87   Implemented by Ulrich Drepper.
  88 \f
  89 Version 2.6
  90
  91 * New Linux interfaces: epoll_pwait, sched_getcpu.
  92
  93 * New generic interfaces: strerror_l.
  94
  95 * nscd can now cache the services database.   Implemented by Ulrich Drepper.
  96
  97 \f
  98 Version 2.5
  99
 100 * For Linux, the sorting of addresses returned by getaddrinfo now also
 101   handles rules 3, 4, and 7 from RFC 3484.  I.e., all rules are handled.
 102   Implemented by Ulrich Drepper.
 103
 104 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
 105   Implemented by Ulrich Drepper.
 106
 107 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
 108
 109 * New iconv module for MIK.  Contributed by Alexander Shopov.
 110
 111 * For sites with broken group and/or passwd database, the auto-propagate
 112   option of nscd can prevent creating ID lookup entries from the results
 113   of a name lookup and vice versa.   This usually is no problem but some
 114   site might have problems with the default behavior.
 115   Implemented by Ulrich Drepper.
 116
 117 * Iterating over entire database in NIS can be slow.  With the
 118   SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
 119   to trade time for memory.  The entire database will be read at once.
 120   Implemented by Ulrich Drepper.
 121
 122 * The interfaces introduced in RFC 3542 have been implemented by
 123   Ulrich Drepper.
 124
 125 * Support for the new ELF hash table format was added by Ulrich Drepper.
 126
 127 * Support for priority inheritance mutexes added by Jakub Jelinek and
 128   Ulrich Drepper.
 129
 130 * Support for priority protected mutexes added by Jakub Jelinek.
 131
 132 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
 133   or_IN, csb_PL, fy_NL, sr_ME.
 134 \f
 135 Version 2.4
 136
 137 * More overflow detection functions.
 138
 139 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
 140   IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
 141
 142   More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
 143   IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
 144   IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
 145   IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
 146   IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
 147   by Masahide Washizawa.
 148
 149 * It is now possible to install audit libraries for the dynamic linker using
 150   LD_AUDIT.  Implemented by Ulrich Drepper.
 151
 152 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
 153   longer supported.  The new NPTL implementation requires Linux 2.6 kernels.
 154   For a libc and libpthread that works well on Linux 2.4 kernels, we
 155   recommend using the stable 2.3 branch.
 156
 157 * The new function open_wmemstream acts like open_memstream,
 158   but uses a wchar_t wide character buffer.
 159
 160 * The new function ppoll is an improved version of poll, similar to pselect.
 161
 162 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
 163   futimesat, faccessat, mkdirat, mkfifoat, mknodat,
 164   renameat, unlinkat, linkat, symlinkat, readlinkat.
 165
 166 * New Linux kernel system calls: unshare,
 167   inotify_init, inotify_add_watch, inotify_rm_watch.
 168
 169 * The euidaccess function is now also known by the alias eaccess,
 170   for compatibility with some other systems.
 171
 172 * Timezone data updated to 2006b version.
 173 \f
 174 Version 2.3.6
 175
 176 * The following bugs are resolved with this release:
 177
 178   38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
 179   1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
 180   1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
 181   1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
 182   1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
 183   1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
 184
 185   Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
 186
 187 * As of this release, GCC 4 can be used to compile the C Library.
 188
 189 * Timezone data updated to 2005m version.
 190 \f
 191 Version 2.3.5
 192
 193 * The following bugs are resolved with this release:
 194
 195   284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
 196   722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
 197   737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
 198   777, 787, 821, 822, 823, 825
 199
 200   Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
 201 \f
 202 Version 2.3.4
 203
 204 * Support for RFC 3678.  Real implementations exist only for Linux so far.
 205   Implemented by Ulrich Drepper.
 206
 207 * nscd can now cache entries persistently.  Expiring entries are reloaded.
 208   For speedups the cache can be shared in memory with client processes.
 209   Implemented by Ulrich Drepper.
 210
 211 * nscd can now perform SELinux checks.
 212   Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
 213
 214 * getaddrinfo queries are now cached.  Canonical name lookup is performed
 215   efficiently.
 216   Implemented by Ulrich Drepper.
 217
 218 * The nothrow function attribute is used when headers are used by gcc when
 219   compiling C code.  This can avoid significant amounts of exception
 220   handling data.
 221
 222 * The malloc functions perform more error checking and are stricter when
 223   it comes to reacting on errors.  The default action is to terminate
 224   the process after showing an error message.  Implemented by Ulrich Drepper.
 225
 226 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
 227   lookups anymore unless explicitly requested.  Implemented by Ulrich Drepper.
 228
 229 * Namespaces in ld.so are implemented.  DSOs can be loaded in separate
 230   namespaces using the new function dlmopen().  This feature is of course,
 231   like most other dynamic loading functionality, not available in statically
 232   linked applications.  Implemented by Ulrich Drepper.
 233
 234 * Low-overhead boundary checking variants of string and some stdio functions
 235   were added.  These are to be used in conjunction with a gcc patch by
 236   Jakub Jelinek which adds calls to these functions if possible.
 237   Implemented by Jakub Jelinek and Ulrich Drepper.
 238
 239 * Old code for several operating systems and machine architectures that
 240   have not been in working condition in a long time have been removed from
 241   the main source tree maintained by the GNU C Library's maintainers.
 242   These files are now reside in the separate `ports' source module
 243   that is usable as an add-on when building the library.
 244 \f
 245 Version 2.3.3
 246
 247 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
 248   interrogate the dynamic linker, compatible with the Solaris interface.
 249
 250 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
 251   implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
 252
 253 * getifaddrs now uses the netlink interface on Linux to get its information.
 254   Implemented by Thorsten Kukuk.
 255
 256 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
 257   Implemented by Ulrich Drepper.
 258
 259 * support for non-executable stacks on x86 has been added.  Changes mostly
 260   by Roland McGrath.
 261
 262 * regex is now much faster for multibyte locales.  Changes by Jakub Jelinek
 263   and Ulrich Drepper.
 264
 265 * getaddrinfo now performs destination address selection according to
 266   RFC 3484.
 267 \f
 268 Version 2.3.2
 269
 270 * Thread-safe interfaces for many functions that access locale data
 271   were added in version 2.3, but these features were omitted from NEWS.
 272   Many functions have variants with an `_l' suffix that take a `locale_t'
 273   object as a parameter rather than consulting the current locale.
 274   The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
 275   create and maintain `locale_t' objects.  Additionally, the new function
 276   `uselocale' sets "the current locale" (as used by functions not so
 277   parameterized) set for an individual thread.  These features were added
 278   in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
 279
 280 * The functions getresuid, getresgid, setresuid, and setresgid, which
 281   have long been available on Linux, are now declared in <unistd.h>
 282   and are now also available on the Hurd.
 283
 284 * ELF thread-local storage support (TLS) now works on x86-64.
 285
 286 * The new dynamic string token $LIB is expanded in shared library names.
 287   This normally expands to lib, but on some 64-bit platforms to lib64 instead.
 288
 289 * Aldy Hernandez contributed complete software floating point support for
 290   PowerPC machines with no FPU.
 291
 292 * fexecve is implemented on Linux.
 293
 294 * The `btowc' function should work at least twice as fast due to
 295   specialized callbacks in the iconv modules.  Implemented by Bruno Haible.
 296
 297 * With approriate thread add-ons cancelable functions are now implemented
 298   in libc.so as well.  No need to call the function in libpthread.  This
 299   change allowed to finally disable the incorrect and expensive handling
 300   of weak definition in ld.so.
 301
 302 * Yet more PLT entries in libc.so have been removed.  We finally arrived
 303   at the bare minimum.  Startup times improved appropriately.
 304
 305 * Support for the new Linux/x86 system call interface was added.  The
 306   AT_SYSINFO auxiliary vector entry is recognized and handled.
 307 \f
 308 Version 2.3
 309
 310 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
 311   charsets.
 312
 313 * iconv (the program and the interface) now accepts empty names (excluding
 314   options like //TRANSLIT) to mean "use charset of current locale".
 315
 316 * localedef can now transliterate characters in strings which are not in
 317   the provided charmap.  The information from the input locale is used.
 318
 319 * Prelinking support was added for ELF targets.  This requires additional
 320   tools and recent versions of the GNU binutils.  Contributed by Jakub Jelinek.
 321
 322 * Read-only stdio streams now use mmap to speed up operation by eliminating
 323   copying and buffer underflows.  To use add 'm' to the mode string of
 324   the fopen/fdopen/freopen call.  Implemented by Ulrich Drepper.
 325
 326 * The malloc functions were completely rewritten by Wolfram Gloger based
 327   on Doug Lea's malloc-2.7.0.c.
 328
 329 * Isamu Hasegawa contributed a completely new and POSIX-conformant
 330   implementation of regex.
 331
 332 * Bruno Haible upgraded the iconv and locale implementation to support
 333   Unicode 3.2.
 334
 335 * Contents of the LC_* and LANG environment variables in the CEN style are
 336   not recognized anymore.   It never was used.  Change by Ulrich Drepper.
 337
 338 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
 339   thread-local storage (TLS) ABI on some platforms.
 340   Changes by Ulrich Drepper.  SH support by Kaz Kojima.
 341
 342 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
 343   EUC-JISX0213, and TSCII.
 344
 345 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
 346   BSD-compatible interface for getting all network interface addresses.
 347   Implementation for IPv4 by Roland McGrath.
 348
 349 * Loading of locale data is faster due to the introduction of a locale
 350   archive.  Implemented by Roland McGrath and Ulrich Drepper.
 351
 352 * Startup times are significantly reduced by not using exported functions
 353   inside the library itself.  Changes by Jakub Jelinek, Roland McGrath,
 354   and Ulrich Drepper.
 355
 356 * Steven Munroe contributed a port to PowerPC64/Linux.
 357 \f
 358 Version 2.2.6
 359
 360 * The Hurd now uses the GNU libio implementation of stdio rather than the
 361   old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
 362
 363 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
 364   with the same behavior as the Linux system call of the same name.
 365 \f
 366 Version 2.2.5
 367
 368 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
 369   128-bit long double format.
 370
 371 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
 372   IBM1161, and IBM1162 charsets.
 373
 374 * Andreas Jaeger contributed a port to x86-64/Linux.
 375
 376 * Peter Bruin contributed a port to PowerPC/Hurd.
 377
 378 * libc functions using I/O streams now can handle wide-oriented streams
 379   as well.
 380
 381 * optimizations in the dynamic linker.  Binaries created by recent binutils
 382   versions start up quicker due to reduced time spent on relocations.
 383
 384 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
 385 \f
 386 Version 2.2.4
 387
 388 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
 389   asinh, atanh, j0 for the 128-bit long double format.
 390
 391 * Bruno Haible updated all the code handling Unicode in some form to
 392   support Unicode 3.1.
 393
 394 * Speed of regex for single-byte locales is back to previous levels.
 395   Patch by Isamu Hasegawa.
 396
 397 * Alpha, SPARC, and IA-64 now also using floating stacks.
 398
 399 * Startup time of internationalized applications greatly improved through
 400   iconv cache.  Use iconvconfig to generate the cache file.
 401   Contributed by Ulrich Drepper.
 402
 403 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
 404   severe performance problems.  Patch by David Mosberger.
 405
 406 * The Hurd port got a lot more functionality like AIO, various stdio
 407   extensions, etc.  Mainly done by Roland McGrath.
 408
 409 * mtrace can now lookup symbols in shared libraries.
 410 \f
 411 Version 2.2.3
 412
 413 * Intel's IA-64 math library is largely integrated.  It provides fast and
 414   accurate implementatations for most basic and standard math functions
 415   in float, double, and long double format.
 416
 417 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
 418   and asin for the 96-bit long double format and asin, log, tan for the
 419   128-bit long double format.
 420
 421 * The beginning of a last-bit accurate math library by IBM Haifa were added.
 422   The basic double functions exist today.  Contributed by Abraham Ziv
 423   <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
 424   <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
 425
 426 * An asynchronous name lookup library was added.  The interface is designed
 427   after POSIX AIO.  The proposal was circulated beforehand to get comments.
 428   No negative ones came in.  Implemented by Ulrich Drepper.
 429
 430 * Port to S390/64bit contributed by Martin Schwidefsky
 431   <schwidefsky@de.ibm.com>.
 432
 433 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
 434   of functions for Linux/IA-64.
 435
 436 * The RPC code is now thread safe.  Threads can now use the same service
 437   of different services at the same time.  Patch by Eric Norum
 438   <eric.norum@usask.ca> with some help by Ulrich Drepper.
 439
 440 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
 441   family of functions for Linux/S390.
 442
 443 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
 444   of functions for Linux/x86.
 445
 446 * Port to Linux/CRIS contributed by Axis Communications.
 447 \f
 448 Version 2.2.2
 449
 450 * Lots of headers were cleaned up.  Using the tool in the conform/ subdir
 451   we can now check for namespace violations and missing declarations.  The
 452   result is that almost all headers are now Unix-compliant (as defined in
 453   the upcoming XPG6).  The negative side is that some programs might need
 454   corrections, too, if they depend on the incorrect form of the headers in
 455   previous versions which defined too many symbols and included too many
 456   other headers.
 457
 458 * regex now handles multibyte character sets correctly.
 459   Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
 460
 461 * iconv (the program) does now conform to the upcoming XPG6 and handles
 462   charmaps.  Instead of the charset names the path of charmaps can be
 463   provided and the conversion happens based on this data.
 464   Contributed by Ulrich Drepper.
 465
 466 * The locale program now provides detailed information about the installed
 467   locales.  While
 468
 469     locale -a
 470
 471   only lists the names of the supported locales
 472
 473     locale -a --verbose
 474
 475   provides details such as country, language, and codeset name.
 476   Contributed by Ulrich Drepper.
 477 \f
 478 Version 2.2.1
 479
 480 * The gencat program now parses the input file according to the charset
 481   selected by the LC_CTYPE category.  This is important for stateful
 482   character sets.  To make generating catalogs easier there is a way
 483   to overwrite the charset selected by the locale: before the first
 484   message or $ quote line the catalog can contain a line like
 485
 486     $ codeset=ISO-8859-2
 487
 488   to select the charset (ISO-8859-2 in this case).
 489
 490   Implemented by Shinya Hanataka and Ulrich Drepper.
 491
 492 * New codeset conversion modules: IBM-922  (Estonia PC codeset),
 493   IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
 494   Contributed by Masahide Washizawa <washi@jp.ibm.com>.
 495
 496 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
 497   <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
 498
 499 * The LANGUAGE environment variable is now ignored unless the locale is
 500   changed from the default "C" locale.
 501
 502 * The usual bug fixes.
 503 \f
 504 Version 2.2
 505
 506 * Greg McGary added runtime support for bounds checking using gcc's
 507   new -fbounded-pointers option.  ix86 target is complete.  PowerPC
 508   is in progress.
 509
 510 * Thorsten Kukuk added secure mode support to nscd.
 511
 512 * The Berkeley db libraries have been removed.
 513
 514   Related, the nss_db module is now in a separate package since it
 515   obviously requires a database library being available.
 516
 517 * Wide character I/O streams implemented by Ulrich Drepper.
 518
 519 * Functions from the extended socket API added by Ulrich Drepper.
 520
 521 * Functions feenableexcept and fedisableexcept to control the
 522   behaviour of individual exceptions have been added by Andreas Jaeger.
 523
 524 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
 525
 526 * The resolver code has been updated from bind 8.2.3-T5B which supports
 527   threads.  The integration was done by Andreas Jaeger, Adam D. Bradley,
 528   and Mark Kettenis.
 529
 530   This change could in some situations effect backward compatibility.  Since
 531   now `_res' is a thread-local instead of a global variable, modifying it
 532   in one thread does not have any effect in other threads.
 533
 534   The resolver library was also extended to allow IPv6 as the transport
 535   protocol for the requests.  This work was done by Stig Venaas.
 536
 537 * Compatibility code for K&R C compilers has been removed from the
 538   header files.  A ISO C compiler is needed to use the library
 539   (conforming to either C89 or C99 standard).
 540
 541 * Complete rewrite of the localedef program to support multibyte character
 542   sets.  Implement handling of ISO 14651 and ISO 14652.  Rewrite strcoll,
 543   strxfrm, wcscoll, and wcsxfrm functions.  Make isw*() functions work.
 544   Implemented by Ulrich Drepper.
 545
 546   Bruno Haible significantly improved the generation and use of the data
 547   structures for the wide character tables.
 548
 549 * Plural handling in gettext implemented by Ulrich Drepper.
 550
 551 * The utmp daemon has been removed.
 552
 553 * The port to MIPS-Linux has been finished by Andreas Jaeger.
 554
 555 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
 556   and Yutaka Niibe.
 557
 558 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
 559
 560 * POSIX barriers implemented by Kaz Kylheku.
 561
 562 * POSIX spawn function family implemented by Ulrich Drepper.
 563
 564 * POSIX spinlocks are now available.
 565
 566 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
 567
 568 * the configure option --enable-kernel=X.Y.Z allows to strip out
 569   compatibility for kernel versions before X.Y.Z.  This is currently only
 570   implemented for Linux.
 571
 572 * the sockaddr_in6 structure changed.  The IPv6 working group added a new
 573   field sin6_scope_id.  This means that all programs using IPv6 should be
 574   recompiled.  Don't expect binary compatibility with previous glibc
 575   versions.
 576
 577 * various conversion modules for IBM character sets contributed by
 578   Masahide Washizawa.
 579
 580 * IA-64 port by Jes Sorensen and HJ Lu.
 581
 582 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 583 Compiling the GNU C Library for Linux/ia64
 584 ******************************************
 585
 586    Please refer to the file INSTALL in the same directory as you found
 587 this file for general information about configuring and compiling
 588 glibc.
 589
 590    For general inquiries about glibc under Linux/ia64 please use the
 591 following mailing list linux-ia64@linuxia64.org or one of the relevant
 592 glibc mailing lists.
 593
 594 Recommended Tools for Compilation
 595 =================================
 596
 597    In order for glibc-2.2 to build correctly on the ia64 you need at
 598 least the following versions of the GNU tools (the :
 599
 600    * The Cygnus toolchain snapshot for the ia64 as of August 4
 601      including the provided set of patches.  It is however recommend
 602      you use the October 24 toolchain snapshot or a more recent version.
 603
 604    OR alternatively you can try the following (the Cygnus toolchain is
 605    the recommended solution):
 606
 607    * GCC and binutils, GAS and GNU LD out of CVS from
 608      sources.redhat.com as of August 28, 2000 or later.  The CVS tree
 609      may require special patches to work properly on the ia64.
 610
 611 Configuring and compiling GNU Libc for Linux/ia64
 612 =================================================
 613
 614    The library requires Linux kernel version 2.4.0-test4-000728 or
 615 later to funtion properly. Besides that it support for debug libraries
 616 is currently untested. Hence the following options
 617 are required for configuring the library:
 618
 619    --disable-debug --enable-kernel=2.4.0
 620
 621    It is also important that you make sure the library picks up the
 622 appropriate kernel header files, if you do not have recent enough
 623 kernel headers in /usr/src/linux/include, you should use the
 624 --with-headers=<path> option to specify the location.
 625
 626    As an example I personally use the following options to configure
 627 the library:
 628
 629    --disable-debug
 630    --disable-cvs
 631    --enable-kernel=2.4.0
 632    --host=ia64-linux
 633    --enable-add-ons=yes
 634    --prefix=/usr
 635    --with-headers=/home/jes/linux/include
 636
 637
 638 Good luck
 639
 640 Jes Sorensen <jes@linuxcare.com>,
 641 November 14th, 2000
 642 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 643 \f
 644 Version 2.1.3
 645
 646 * bug fixes
 647
 648 \f
 649 Version 2.1.2
 650
 651 * bug fixes
 652
 653 \f
 654 Version 2.1.1
 655
 656 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
 657
 658 * New xdr functions are added; some rpc functions are now 64bit clean.
 659
 660 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
 661
 662 * Fixed known incompatibilities with glibc 2.0.
 663
 664 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
 665
 666 * Optimized a number of functions (especially the ELF dynamic loader).
 667
 668 * Update timezone data files.
 669
 670 * lots of charmaps corrections
 671
 672 * some new locale definitions and charmaps
 673
 674 \f
 675 Version 2.1
 676
 677 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
 678   conform to POSIX member type requirements.  Symbol versions have been
 679   adjusted as needed within the library, and for direct use by applications,
 680   but there is potential for problems if third-party libraries use
 681   struct timeval as part of their interface.  This does not present
 682   a problem for X and other "essential" system libraries.
 683
 684 * An additional locale model to support C++ Standard Library locale
 685   model and probably more was implemented by Ulrich Drepper.
 686
 687 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
 688   symbol level.
 689
 690 * Miles Bader provided the `argp' function family to support hierachical
 691   command line argument parsing, layered on top of getopt.
 692
 693 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
 694
 695 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
 696   numbers.
 697
 698 * scanf recognizes the %a and %A format for scanning floating point numbers.
 699
 700 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
 701   information and interfaces for the available integer types.
 702
 703 * about 130 new math functions were added to implement the ISO C9x math
 704   library.
 705
 706 * the new header <complex.h> contains definitions of the complex math
 707   functions from ISO C 9X.
 708
 709 * the new header <tgmath.h> defines generic macros to use complex or
 710   real valued functions.
 711
 712 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
 713
 714 * Andreas Jaeger provided a test suite for the math library.
 715
 716 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
 717
 718 * Ulrich Drepper added character set conversion functions (iconv).
 719
 720 * Optimized string functions have been added.
 721
 722 * The localedata addon is now part of glibc.
 723
 724 * An implementation of profiling shared libraries was added by Ulrich Drepper.
 725
 726 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
 727   daemon for NSS (nscd).
 728
 729   Missing a better place here are some numbers on improvements.  Under
 730   Linux 2.1.125 un-tar-ing the kernel sources takes
 731
 732                                   user  system     wall
 733
 734     using local files           12.19s   6.88s   22.91s
 735
 736     using NIS                   13.92s   8.91s   26.34s
 737
 738     using NIS & nscd            10.37s   7.34s   25.30s
 739
 740     using NIS+                  27.57s  30.37s  640.46s
 741
 742     using NIS+ & nscd           10.25s   7.83s   26.51s
 743
 744     using NIS & old nscd [1]    13.83s   8.32s   29.60s
 745
 746   Keep in mind that non-namelookup related operations dominate above times.
 747   It was just a common complain that using NIS+ unpacking the kernel is
 748   horribly slow.
 749
 750   [1] The old nscd implementation is not available anymore since it was
 751   distributed with glibc up to version 2.0.98 and thus is now replaced.
 752
 753 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
 754
 755 * Mark Kettenis provided a Hesiod NSS module.
 756
 757 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
 758   and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
 759
 760 * rcmd can now handle netgroups (Dick Streefland).
 761
 762 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
 763   Bambrough.
 764
 765 * Support for the IPv6 protocol has been added to the socket API, as per the
 766   latest draft standards.
 767
 768 * Support for Linux 2.2 has been added.
 769
 770 * Interface changes relative to the latest 2.0.x release:
 771 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 772 addseverity                     NEW: Unix98
 773 alphasort64                     NEW: LFS
 774 argp_err_exit_status            NEW: argp, GNU ext
 775 argp_error                      NEW: argp, GNU ext
 776 argp_failure                    NEW: argp, GNU ext
 777 argp_help                       NEW: argp, GNU ext
 778 argp_parse                      NEW: argp, GNU ext
 779 argp_program_bug_address        NEW: argp, GNU ext
 780 argp_program_version            NEW: argp, GNU ext
 781 argp_program_version_hook       NEW: argp, GNU ext
 782 argp_state_help                 NEW: argp, GNU ext
 783 argp_usage                      NEW: argp, GNU ext
 784 authdes_create                  NEW: Secure RPC
 785 authdes_getucred                NEW: Secure RPC
 786 authdes_pk_create               NEW: Secure RPC
 787 backtrace                       NEW: GNU ext.
 788 backtrace_symbols               NEW: GNU ext.
 789 backtrace_symbols_fd            NEW: GNU ext.
 790 cacos                           NEW: ISO C 9x
 791 cacosf                          NEW: ISO C 9x
 792 cacosh                          NEW: ISO C 9x
 793 cacoshf                         NEW: ISO C 9x
 794 cacoshl                         NEW: ISO C 9x
 795 cacosl                          NEW: ISO C 9x
 796 capget                          NEW: kernel
 797 capset                          NEW: kernel
 798 carg                            NEW: ISO C 9x
 799 cargf                           NEW: ISO C 9x
 800 cargl                           NEW: ISO C 9x
 801 casin                           NEW: ISO C 9x
 802 casinf                          NEW: ISO C 9x
 803 casinh                          NEW: ISO C 9x
 804 casinhf                         NEW: ISO C 9x
 805 casinhl                         NEW: ISO C 9x
 806 casinl                          NEW: ISO C 9x
 807 catan                           NEW: ISO C 9x
 808 catanf                          NEW: ISO C 9x
 809 catanh                          NEW: ISO C 9x
 810 catanhf                         NEW: ISO C 9x
 811 catanhl                         NEW: ISO C 9x
 812 catanl                          NEW: ISO C 9x
 813 cbc_crypt                       NEW: Secure RPC
 814 ccos                            NEW: ISO C 9x
 815 ccosf                           NEW: ISO C 9x
 816 ccosh                           NEW: ISO C 9x
 817 ccoshf                          NEW: ISO C 9x
 818 ccoshl                          NEW: ISO C 9x
 819 ccosl                           NEW: ISO C 9x
 820 cexp                            NEW: ISO C 9x
 821 cexpf                           NEW: ISO C 9x
 822 cexpl                           NEW: ISO C 9x
 823 cimag                           NEW: ISO C 9x
 824 cimagf                          NEW: ISO C 9x
 825 cimagl                          NEW: ISO C 9x
 826 clearerr_locked                 REMOVED
 827 clntunix_create                 NEW: sunrpc ext
 828 clog                            NEW: ISO C 9x
 829 clog10                          NEW: ISO C 9x
 830 clog10f                         NEW: ISO C 9x
 831 clog10l                         NEW: ISO C 9x
 832 clogf                           NEW: ISO C 9x
 833 clogl                           NEW: ISO C 9x
 834 conj                            NEW: ISO C 9x
 835 conjf                           NEW: ISO C 9x
 836 conjl                           NEW: ISO C 9x
 837 cpow                            NEW: ISO C 9x
 838 cpowf                           NEW: ISO C 9x
 839 cpowl                           NEW: ISO C 9x
 840 cproj                           NEW: ISO C 9x
 841 cprojf                          NEW: ISO C 9x
 842 cprojl                          NEW: ISO C 9x
 843 creal                           NEW: ISO C 9x
 844 crealf                          NEW: ISO C 9x
 845 creall                          NEW: ISO C 9x
 846 creat64                         NEW: LFS
 847 csin                            NEW: ISO C 9x
 848 csinf                           NEW: ISO C 9x
 849 csinh                           NEW: ISO C 9x
 850 csinhf                          NEW: ISO C 9x
 851 csinhl                          NEW: ISO C 9x
 852 csinl                           NEW: ISO C 9x
 853 csqrt                           NEW: ISO C 9x
 854 csqrtf                          NEW: ISO C 9x
 855 csqrtl                          NEW: ISO C 9x
 856 ctan                            NEW: ISO C 9x
 857 ctanf                           NEW: ISO C 9x
 858 ctanh                           NEW: ISO C 9x
 859 ctanhf                          NEW: ISO C 9x
 860 ctanhl                          NEW: ISO C 9x
 861 ctanl                           NEW: ISO C 9x
 862 des_setparity                   NEW: Secure RPC
 863 ecb_crypt                       NEW: Secure RPC
 864 endutxent                       NEW: Unix98
 865 exp10                           NEW: ISO C 9x
 866 exp10f                          NEW: ISO C 9x
 867 exp10l                          NEW: ISO C 9x
 868 exp2                            NEW: ISO C 9x
 869 exp2f                           NEW: ISO C 9x
 870 exp2l                           NEW: ISO C 9x
 871 fattach                         NEW: STREAMS
 872 fdetach                         NEW: STREAMS
 873 fdim                            NEW: ISO C 9x
 874 fdimf                           NEW: ISO C 9x
 875 fdiml                           NEW: ISO C 9x
 876 feclearexcept                   NEW: ISO C 9x
 877 fegetenv                        NEW: ISO C 9x
 878 fegetexceptflag                 NEW: ISO C 9x
 879 fegetround                      NEW: ISO C 9x
 880 feholdexcept                    NEW: ISO C 9x
 881 feof_locked                     REMOVED
 882 feraiseexcept                   NEW: ISO C 9x
 883 ferror_locked                   REMOVED
 884 fesetenv                        NEW: ISO C 9x
 885 fesetexceptflag                 NEW: ISO C 9x
 886 fesetround                      NEW: ISO C 9x
 887 fetestexcept                    NEW: ISO C 9x
 888 feupdateenv                     NEW: ISO C 9x
 889 fflush_locked                   REMOVED
 890 ffsl                            NEW: GNU ext.
 891 ffsll                           NEW: GNU ext.
 892 fgetpos64                       NEW: LFS
 893 fgets_unlocked                  NEW: GNU ext.
 894 fileno_locked                   REMOVED
 895 fma                             NEW: ISO C 9x
 896 fmaf                            NEW: ISO C 9x
 897 fmal                            NEW: ISO C 9x
 898 fmax                            NEW: ISO C 9x
 899 fmaxf                           NEW: ISO C 9x
 900 fmaxl                           NEW: ISO C 9x
 901 fmin                            NEW: ISO C 9x
 902 fminf                           NEW: ISO C 9x
 903 fminl                           NEW: ISO C 9x
 904 fmtmsg                          NEW: Unix98
 905 fopen64                         NEW: LFS
 906 fputc_locked                    REMOVED
 907 fputs_unlocked                  NEW: GNU ext.
 908 fread_unlocked                  NEW: GNU ext.
 909 freopen64                       NEW: LFS
 910 fseeko                          NEW: Unix98
 911 fsetpos64                       NEW: LFS
 912 fstatfs64                       NEW: LFS
 913 fstatvfs                        NEW: Unix98
 914 fstatvfs64                      NEW: LFS
 915 ftello                          NEW: Unix98
 916 ftello64                        NEW: LFS
 917 ftruncate64                     NEW: LFS
 918 ftw64                           NEW: LFS
 919 fwrite_unlocked                 NEW: GNU ext.
 920 gai_strerror                    NEW: IPv6
 921 gamma_r                         REMOVED
 922 gammaf_r                        REMOVED
 923 gammal_r                        REMOVED
 924 getchar_locked                  REMOVED
 925 getdate                         NEW: Unix98
 926 getdate_err                     NEW: Unix98
 927 getdate_r                       NEW: GNU ext.
 928 getmsg                          NEW: STREAMS
 929 getnameinfo                     NEW: IPv6
 930 getnetname                      NEW: Secure RPC
 931 getpmsg                         NEW: STREAMS
 932 getpt                           NEW: Unix98 PTY
 933 getrlimit64                     NEW: LFS
 934 getutxent                       NEW: Unix98
 935 getutxid                        NEW: Unix98
 936 getutxline                      NEW: Unix98
 937 glob64                          NEW: GNU ext.
 938 globfree64                      NEW: GNU ext.
 939 gnu_get_libc_release            NEW: GNU ext.
 940 gnu_get_libc_version            NEW: GNU ext.
 941 grantpt                         NEW: Unix98 PTY
 942 host2netname                    NEW: Secure RPC
 943 iconv                           NEW: iconv
 944 iconv_close                     NEW: iconv
 945 iconv_open                      NEW: iconv
 946 if_freenameindex                NEW: IPv6
 947 if_indextoname                  NEW: IPv6
 948 if_nameindex                    NEW: IPv6
 949 if_nametoindex                  NEW: IPv6
 950 in6addr_any                     NEW: IPv6
 951 in6addr_loopback                NEW: IPv6
 952 inet6_isipv4mapped              NEW: IPv6
 953 isastream                       NEW: STREAMS
 954 iswblank                        NEW: GNU ext.
 955 key_decryptsession              NEW: Secure RPC
 956 key_decryptsession_pk           NEW: Secure RPC
 957 key_encryptsession              NEW: Secure RPC
 958 key_encryptsession_pk           NEW: Secure RPC
 959 key_gendes                      NEW: Secure RPC
 960 key_get_conv                    NEW: Secure RPC
 961 key_secretkey_is_set            NEW: Secure RPC
 962 key_setnet                      NEW: Secure RPC
 963 key_setsecret                   NEW: Secure RPC
 964 llrint                          NEW: ISO C 9x
 965 llrintf                         NEW: ISO C 9x
 966 llrintl                         NEW: ISO C 9x
 967 llround                         NEW: ISO C 9x
 968 llroundf                        NEW: ISO C 9x
 969 llroundl                        NEW: ISO C 9x
 970 log2                            NEW: ISO C 9x
 971 log2f                           NEW: ISO C 9x
 972 log2l                           NEW: ISO C 9x
 973 lrint                           NEW: ISO C 9x
 974 lrintf                          NEW: ISO C 9x
 975 lrintl                          NEW: ISO C 9x
 976 lround                          NEW: ISO C 9x
 977 lroundf                         NEW: ISO C 9x
 978 lroundl                         NEW: ISO C 9x
 979 lseek64                         NEW: LFS
 980 makecontext                     NEW: Unix98
 981 mempcpy                         NEW: GNU ext.
 982 mmap64                          NEW: LFS
 983 moncontrol                      REMOVED
 984 modify_ldt                      NEW: kernel
 985 nan                             NEW: ISO C 9x
 986 nanf                            NEW: ISO C 9x
 987 nanl                            NEW: ISO C 9x
 988 nearbyint                       NEW: ISO C 9x
 989 nearbyintf                      NEW: ISO C 9x
 990 nearbyintl                      NEW: ISO C 9x
 991 netname2host                    NEW: Secure RPC
 992 netname2user                    NEW: Secure RPC
 993 nexttoward                      NEW: ISO C 9x
 994 nexttowardf                     NEW: ISO C 9x
 995 nexttowardl                     NEW: ISO C 9x
 996 nftw                            NEW: Unix98
 997 nftw64                          NEW: LFS
 998 open64                          NEW: LFS
 999 passwd2des                      NEW: Secure RPC
1000 pow10                           NEW: GNU ext.
1001 pow10f                          NEW: GNU ext.
1002 pow10l                          NEW: GNU ext.
1003 pread                           NEW: Unix98
1004 pread64                         NEW: LFS
1005 printf_size                     NEW: GNU ext.
1006 printf_size_info                NEW: GNU ext.
1007 profil_counter                  REMOVED
1008 pthread_mutexattr_getkind_np    REPLACED
1009 pthread_mutexattr_setkind_np    REPLACED
1010 ptsname                         NEW: Unix98 PTY
1011 ptsname_r                       NEW: Unix98 PTY
1012 putc_locked                     REMOVED
1013 putchar_locked                  REMOVED
1014 putgrent                        NEW: GNU ext.
1015 putmsg                          NEW: STREAMS
1016 putpmsg                         NEW: STREAMS
1017 pututxline                      NEW: Unix98
1018 pwrite                          NEW: Unix98
1019 pwrite64                        NEW: LFS
1020 readdir64                       NEW: LFS
1021 readdir64_r                     NEW: LFS
1022 remquo                          NEW: ISO C 9x
1023 remquof                         NEW: ISO C 9x
1024 remquol                         NEW: ISO C 9x
1025 round                           NEW: ISO C 9x
1026 roundf                          NEW: ISO C 9x
1027 roundl                          NEW: ISO C 9x
1028 rtime                           NEW: GNU ext.
1029 scalbln                         NEW: ISO C 9x
1030 scalblnf                        NEW: ISO C 9x
1031 scalblnl                        NEW: ISO C 9x
1032 scandir64                       NEW: LFS
1033 sendfile                        NEW: kernel
1034 setcontext                      NEW: Unix98
1035 setrlimit64                     NEW: LFS
1036 setutxent                       NEW: Unix98
1037 sighold                         NEW: Unix98
1038 sigignore                       NEW: Unix98
1039 sigqueue                        NEW: POSIX.1b
1040 sigrelse                        NEW: Unix98
1041 sigset                          NEW: POSIX.1b
1042 sigtimedwait                    NEW: POSIX.1b
1043 sigwaitinfo                     NEW: POSIX.1b
1044 sincos                          NEW: GNU ext.
1045 sincosf                         NEW: GNU ext.
1046 sincosl                         NEW: GNU ext.
1047 statfs64                        NEW: LFS
1048 statvfs                         NEW: Unix98
1049 statvfs64                       NEW: LFS
1050 strcasestr                      NEW: GNU ext.
1051 strtoimax                       NEW: ISO C 9x
1052 strtoumax                       NEW: ISO C 9x
1053 strverscmp                      NEW: GNU ext.
1054 svcauthdes_stats                NEW: Secure RPC
1055 svcunix_create                  NEW: sunrpc etx
1056 svcunixfd_create                NEW: sunrpc ext
1057 swapcontext                     NEW: Unix98
1058 tcgetsid                        NEW: Unix98 PTY
1059 tdestroy                        NEW: GNU ext.
1060 tgamma                          NEW: ISO C 9x
1061 tgammaf                         NEW: ISO C 9x
1062 tgammal                         NEW: ISO C 9x
1063 tmpfile64                       NEW: LFS
1064 trunc                           NEW: ISO C 9x
1065 truncate64                      NEW: LFS
1066 truncf                          NEW: ISO C 9x
1067 truncl                          NEW: ISO C 9x
1068 umount2                         NEW: kernel
1069 unlockpt                        NEW: Unix98 PTY
1070 updwtmpx                        NEW: Unix98
1071 user2netname                    NEW: Secure RPC
1072 utmpxname                       NEW: Unix98
1073 versionsort                     NEW: GNU ext.
1074 versionsort64                   NEW: GNU ext.
1075 waitid                          NEW: Unix98
1076 wcscasecmp                      NEW: GNU ext.
1077 wcsncasecmp                     NEW: GNU ext.
1078 wcsnlen                         NEW: GNU ext.
1079 wcstoimax                       NEW: ISO C 9x
1080 wcstoll                         NEW: ISO C 9x
1081 wcstoull                        NEW: ISO C 9x
1082 wcstoumax                       NEW: ISO C 9x
1083 wcswcs                          NEW: Unix98
1084 wordexp                         NEW: POSIX.2
1085 wordfree                        NEW: POSIX.2
1086 write_profiling                 REMOVED
1087 xdecrypt                        NEW: Secure RPC
1088 xdr_authdes_cred                NEW: Secure RPC
1089 xdr_authdes_verf                NEW: Secure RPC
1090 xdr_cryptkeyarg                 NEW: Secure RPC
1091 xdr_cryptkeyarg2                NEW: Secure RPC
1092 xdr_cryptkeyres                 NEW: Secure RPC
1093 xdr_getcredres                  NEW: Secure RPC
1094 xdr_key_netstarg                NEW: Secure RPC
1095 xdr_key_netstres                NEW: Secure RPC
1096 xdr_keybuf                      NEW: Secure RPC
1097 xdr_keystatus                   NEW: Secure RPC
1098 xdr_netnamestr                  NEW: Secure RPC
1099 xdr_sizeof                      NEW: Secure RPC
1100 xdr_unixcred                    NEW: sunrpc ext
1101 xencrypt                        NEW: Secure RPC
1102 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1103 \f
1104 Version 2.0.6
1105
1106 * more bug fixes
1107
1108 \f
1109 Version 2.0.5
1110
1111 * more bug fixes
1112
1113 * inet_ntoa is thread-safe
1114
1115 * updwtmp is moved from libutil to libc
1116
1117 * rewrite of cbrt function
1118
1119 * update of timezone data
1120 \f
1121 Version 2.0.4
1122
1123 * more bug fixes
1124 \f
1125 Version 2.0.3
1126
1127 * more bug fixes
1128 \f
1129 Version 2.0.2
1130
1131 * more bug fixes
1132
1133 * add atoll function
1134
1135 * fix complex problems in Berkeley DB code
1136
1137 * fix math functions
1138 \f
1139 Version 2.0.1
1140
1141 * fixed lots of header problems (especially Linux/GNU specific)
1142
1143 * dynamic loader preserves all registers
1144
1145 * Roland McGrath provided support for handling of auxiliary objects in
1146   the ELF dynamic loader.
1147
1148 * support for parallel builds is improved
1149 \f
1150 Version 2.0
1151
1152 * GNU extensions are no longer declared by default.  To enable them you
1153   must define the macro `_GNU_SOURCE' in your program or compile with
1154   `-D_GNU_SOURCE'.
1155
1156 * The library has changed from using GNU ld symbol aliases to using weak
1157   symbols where available.  The ELF object file format supports weak
1158   symbols; GNU ld also supports weak symbols in the a.out format.  (There
1159   is also now support for other GNU ld extensions in ELF.  Use the
1160   `--with-elf' option to configure to indicate you have ELF, and
1161   `--with-gnu-ld' if using GNU ld.)  This change resulted in the deletion
1162   of many files which contained only symbol aliases, reducing the size of
1163   the source and the compiled library; many other files were renamed to
1164   less cryptic names previously occupied by the symbol alias files.
1165   There is a new header file <elf.h> for programs which operate on
1166   files in the ELF format.
1167
1168 * Converted to Autoconf version 2, so `configure' has more options.
1169   Run `configure --help' to see the details.
1170
1171 * The library can now be configured to build profiling, highly-optimized
1172   (but undebuggable), and/or shared libraries (ELF with GNU ld only).  The
1173   `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1174   `configure' enable building these extra libraries.  The shared library is
1175   built by default when using both ELF and GNU ld.  When shared libraries
1176   are enabled, the new library `-ldl' is available for arbitrary run-time
1177   loading of shared objects; its interface is defined in <dlfcn.h>.  The
1178   new header file <link.h> gives access to the internals of the run-time
1179   dynamic linker, `ld.so'.  The shell script `ldd' is similar to the
1180   application of same name on other systems and it provides information
1181   about dynamically linked binaries.
1182
1183 * The C library now provides the run-time support code for profiling
1184   executables compiled with `-pg'.  Programs can control the profiling code
1185   through the interface in <sys/gmon.h>.  The `gmon.out' files written by
1186   the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1187   the support for this file format was contributed by David Mosberger-Tang.
1188
1189 * The math code has been replaced with a math library based on fdlibm from
1190   Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1191   Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1192   functions.  The math functions now reside in a separate library,  so
1193   programs using them will need to use `-lm' their linking commands.
1194
1195 * John C. Bowman contributed optimized ix87 assembler inline functions.
1196
1197 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1198   mechanism similar to that found in Solaris 2.  This is now used for the
1199   group, passwd, hosts, networks, services, protocols, rpc, ethers,
1200   shadow, netgroup, publickey, and alias databases.  The `nsswitch.conf'
1201   file controls what services are used for each individual database.  This
1202   works by loading shared libraries with names specified in `nsswitch.conf',
1203   so service modules can be changed or added at any time without even
1204   relinking any program.  Currently there are the file, db, and NIS based
1205   NSS services available.
1206
1207 * The new functions `strtoq' and `strtouq' parse integer values from
1208   strings, like `strtol' and `strtoul', but they return `long long int' and
1209   `unsigned long long int' values, respectively (64-bit quantities).
1210
1211 * The new functions `strtof' and `strtold' parse floating-point values from
1212   strings, like `strtod', but they return `float' and `long double' values,
1213   respectively (on some machines `double' and `long double' are the same).
1214
1215 * Ulrich Drepper has contributed new implementations of the floating-point
1216   printing and reading code used in the `printf' family of functions and
1217   `strtod', `strtof', and `strtold'.  These new functions are perfectly
1218   accurate, and much faster than the old ones.
1219
1220 * The implementation of the POSIX locale model was completely rewritten by
1221   Ulrich Drepper.  This includes the new programs `localedef' and `locale'
1222   to compile the POSIX locale definition.
1223
1224 * The former dummy implementations of the strcoll and strxfrm function are
1225   now replaced by fully functional code contributed by Ulrich Drepper.  The
1226   collation information comes from the POSIX locale definitions.
1227
1228 * The new header <langinfo.h> defines an interface for accessing
1229   various locale-dependent data (using the locale chosen with `setlocale').
1230
1231 * Ulrich Drepper has contributed a new suite of functions for operation on
1232   wide-character and multibyte-character strings, in <wchar.h>;
1233   and classification and case conversion of wide characters, in <wctype.h>.
1234   These new functions are conforming to the ISO C, Amendement 1 specification.
1235
1236 * There is now a second implementation of the standard I/O library available.
1237   It comes from GNU libg++ as was written by Per Bothner, heavily modified
1238   by Hongjiu Lu and made thread safe by Ulrich Drepper.
1239
1240 * You can now use positional parameter specifications in format strings
1241   for the `printf' and `scanf' families of functions.  For example,
1242   `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1243   ``Number 6, Mr Jones''.  This is mainly useful when providing different
1244   format strings for different languages, whose grammars may dictate
1245   different orderings of the values being printed.  To support this
1246   feature, the interface for `register_printf_handler' has changed; see
1247   the header file <printf.h> for details.
1248
1249 * The `printf' and `scanf' families of functions now understand a new
1250   formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1251   to group numbers as indicated by the locale; for `scanf' and friends, this
1252   says to accept as valid only a number with all the proper grouping
1253   separators in the right places.  In the default "C" locale, numbers are
1254   not grouped; but locales for specific countries will define the usual
1255   conventions (i.e. separate thousands with `,' in the US locale).
1256
1257 * The pgrp functions have been regularized, slightly incompatibly but much
1258   less confusingly.  The core functions are now `getpgid' and `setpgid',
1259   which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1260   argument) and BSD `setpgrp' (identical to `setpgid') functions are
1261   provided for compatibility.  There is no longer an incompatible `getpgrp'
1262   with an argument declared under _BSD_SOURCE; no BSD code uses it.
1263
1264 * The new header file <fts.h> and suite of functions simplify programs that
1265   operate on directory trees.  This code comes from 4.4 BSD.
1266
1267 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1268   Parts of the code were heavily modified by Ulrich Drepper to fit in the
1269   NSS scheme used in glibc.
1270
1271 * There is a new malloc debugging hook `__memalign_hook'.
1272
1273 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1274   `unsigned int' in <sys/types.h>.  These are for compatibility only and
1275   their use is discouraged.
1276
1277 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1278   done differently, so that it works even without GNU ld.
1279
1280 * New function `euidaccess' checks allowed access to a file like `access',
1281   but using the effective IDs instead of the real IDs.
1282
1283 * The time zone data files have been updated for the latest and greatest
1284   local time conventions of the countries of the world.
1285
1286 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
1287   see <dirent.h>.
1288
1289 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
1290   for formatting floating-point numbers.  They are provided only for
1291   compatibility; new programs should use `sprintf' instead.  There are
1292   also equivalent function for the `long double' floating-point type and
1293   all functions also exist in a reentrant form.
1294
1295 * The new auxiliary library `-lutil' from 4.4 BSD contains various
1296   functions for maintaining the login-record files (primarily of use to
1297   system programs such as `login'), and convenient functions for
1298   allocating and initializing a pseudo-terminal (pty) device.
1299
1300 * Ulrich Drepper has contributed new support for System V style
1301   shared memory and IPC on systems that support it.
1302
1303 * Ulrich Drepper has contributed several miscellaneous new functions found
1304   in System V: The `hsearch' family of functions provide an effective
1305   implementation of hash tables; `a64l' and `l64a' provide a very simple
1306   binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1307   number generator.
1308
1309 * Ulrich Drepper has contributed new reentrant counterparts for the
1310   `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1311
1312 * Ulrich Drepper has contributed new, highly-optimized versions of several
1313   string functions for the i486/Pentium family of processors.
1314
1315 * Ulrich Drepper has updated the Linux-specific code, based largely
1316   on work done in Hongjiu Lu's version of GNU libc for Linux.
1317   The GNU library now supports Linux versions 2.0.10 and later,
1318   using the ELF object file format (i[3456]86-*-linux).
1319
1320 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1321
1322 * David Mosberger-Tang and Richard Henderson have ported the C library
1323   to Linux/Alpha (alpha-*-linux).  Richard Henderson contributed the
1324   dynamic linking support for ELF/Alpha.
1325
1326 * Richard Henderson contributed several Alpha optimized assembler function
1327   for arithmetic and string handling.
1328
1329 * Ulrich Drepper has contributed a new set of message catalog functions to
1330   support multiple languages using the <libintl.h> interface, for use with
1331   his new package GNU gettext.  Translation volunteers have contributed
1332   catalogs of the library's messages in Spanish, German, and Korean.
1333
1334 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1335   program and the `catgets' function for reading the catalog files it
1336   creates.  (The <libintl.h> interface is preferred; we include the
1337   <nl_types.h> interface using `catgets' only for source compatibility with
1338   programs already written to use it.)
1339
1340 * New header file <values.h> gives SVID-compatible names for <limits.h>
1341   constants.
1342
1343 * Various new macros, declarations, and small header files for compatibility
1344   with 4.4 BSD.
1345
1346 * New function `group_member' is a convenient way to check if a process has
1347   a given effective group ID.
1348
1349 * When using GCC 2.7 and later, the socket functions are now declared in a
1350   special way so that passing an argument of type `struct sockaddr_in *',
1351   `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
1352   `struct sockaddr *' type, does not generate a type-clash warning.
1353
1354 * New function `error' declared in header file <error.h> is a convenient
1355   function for printing error messages and optionally exiting; this is the
1356   canonical function used in GNU programs.  The new functions `err', `warn',
1357   and friends in header file <err.h> are the canonical 4.4 BSD interface for
1358   doing the same thing.
1359
1360 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
1361   POSIX.2 `glob' function to do ~ and {...} expansion.
1362
1363 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
1364   `clearenv' which is used in POSIX.9 is also available.
1365
1366 * New function `getsid' returns session ID number on systems that support it.
1367
1368 * We have incorporated the 4.4 BSD `db' library (version 1.85).  New header
1369   files <db.h> and <mpool.h> provide a rich set of functions for several
1370   types of simple databases stored in memory and in files, and <ndbm.h> is
1371   an old `ndbm'-compatible interface using the `db' functions.  Link with
1372   `-ldb' to get these functions.
1373
1374 * New macro `strdupa' copies a string like `strdup', but uses local stack
1375   space from `alloca' instead of dynamic heap space from `malloc'.
1376
1377 * New function `strnlen' is like `strlen' but searches only a given maximum
1378   number of characters for the null terminator.  `stpncpy', `strndup' and
1379   `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1380   function.
1381
1382 * New function `statfs' in header <sys/statfs.h>.
1383
1384 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1385   provide convenient functions for operating on blocks of null-terminated
1386   strings.
1387
1388 * A new suite of functions in <utmp.h> handle all the details of reading
1389   and writing the utmp file.
1390
1391 * An implementation of the NIS/YP(tm) based NSS service was contributed by
1392   Thorsten Kukuk.
1393
1394 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
1395   completely POSIX compliant and also implemented the extended functionality
1396   to handle alternate digit representation and alternate era date formats.
1397
1398 * Ulrich Drepper provided an implementation of the `strptime' function
1399   defined in XPG4.2 which transforms a string into a `struct tm' value.
1400
1401 * Paul Eggert provided the tzselect shell script as part of the timezone
1402   code.  The shell script makes it easy to select the correct timezone
1403   specification.
1404
1405 * The implementation of the malloc family of functions is completely replaced
1406   by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
1407   The implementation uses the mmap function (if available) and it is
1408   optimized for the use in multi threaded programs.
1409
1410 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
1411   functions.  This new functionality is usable by specifying a special
1412   salt string and it is compatible with implementation on *BSD systems.
1413
1414 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
1415   `getsubopt' to handle second level command line options, `bsd_signal'
1416   to access BSD style `signal' functionality, the obsolete `regexp' style
1417   expression matcher.
1418
1419 * the `lchown' function is available on system which support this
1420   functionality.
1421
1422 * The implementation of the shadow password handling function was contributed
1423   by Ulrich Drepper.
1424
1425 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
1426
1427 * POSIX.1g support was added.  The <sys/select.h> header is available,
1428   `isfdtype' and `pselect' are implemented.  Craig Metz contributed an
1429   implementation of `getaddrinfo'.
1430 \f
1431 Version 1.09
1432
1433 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
1434
1435 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
1436   friends, for parsing /etc/fstab.  This code comes from 4.4 BSD.
1437
1438 * The new function `daemon' from 4.4 BSD is useful for server programs that
1439   want to put themselves in the background.
1440
1441 * Joel Sherrill has contributed support for several standalone boards that
1442   run without an operating system.
1443
1444 * `printf', `scanf' and friends now accept a `q' type modifier for long
1445   long int as well as `ll'.  Formats using these might be `%qu' or `%lld'.
1446
1447 * All of the code taken from BSD (notably most of the math and networking
1448   routines) has been updated from the BSD 4.4-Lite release.
1449
1450 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
1451
1452 * The new functions `getdomainname' and `setdomainname' fetch or change the
1453   YP/NIS domain name.  These are system calls which exist on systems which
1454   have YP (aka NIS).
1455
1456 * The time zone data files have been updated for the latest international
1457   conventions.
1458
1459 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
1460   $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
1461 \f
1462 Version 1.08
1463
1464 * The C library now includes support for Sun RPC, from Sun's free
1465   RPCSRC-4.0 distribution.  The `portmap', `rpcinfo', and `rpcgen' programs
1466   are included.  (There is still no support for YP.)
1467
1468 * Tom Quinn has contributed a port of the C library to SGI machines running
1469   Irix 4 (mips-sgi-irix4).
1470
1471 * The new `lockf' function is a simplified interface to the locking
1472   facilities of `fcntl', included for compatibility.
1473
1474 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
1475
1476 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
1477
1478 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
1479   compatibility.
1480
1481 * The error message printed by `assert' for a failed assertion now includes
1482   the name of the program (if using GNU ld) and the name of the calling
1483   function (with versions of GCC that support this).
1484
1485 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
1486
1487 * The library now includes the <sys/mman.h> header file and memory
1488   management functions `mmap', `munmap', `mprotect', `msync', and
1489   `madvise', on systems that support those facilities.
1490
1491 * The interface for `mcheck' has changed slightly: the function called to
1492   abort the program when an allocation inconsistency is detected now takes
1493   an argument that indicates the type of failure.  The new function
1494   `mprobe' lets you request a consistency check for a particular block at
1495   any time (checks are normally done only when you call `free' or `realloc'
1496   on a block).
1497
1498 * It is now possible to easily cross-compile the C library, building on one
1499   system a library to run on another machine and/or operating system.  All
1500   you need to do is set the variable `HOST_CC' in `configparms' to the
1501   native compiler for programs to run on the machine you are building on (a
1502   few generator programs are used on Unix systems); set `CC' to the
1503   cross-compiler.
1504
1505 * The new function `fexecve' (only implemented on the GNU system) executes
1506   a program file given a file descriptor already open on the file.
1507 \f
1508 Version 1.07
1509
1510 * Brendan Kehoe has contributed most of a port to the DEC Alpha
1511   running OSF/1 (alpha-dec-osf1).  He says it is 75% complete.
1512
1513 * You can set the variable `libprefix' in `configparms' to specify a prefix
1514   to be prepended to installed library files; this makes it easy to install
1515   the GNU C library to be linked as `-lgnuc' or whatever.
1516
1517 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
1518   copies a limited number of characters from a string, and returns the
1519   address of the last character written.
1520
1521 * You no longer need to check for whether the installed `stddef.h' is
1522   compatible with the GNU C library.  configure now checks for you.
1523
1524 * You can now define a per-stream `fileno' function to convert the
1525   stream's cookie into an integral file descriptor.
1526
1527 * ``malloc (0)'' no longer returns a null pointer.  Instead, it
1528   allocates zero bytes of storage, and returns a unique pointer which
1529   you can pass to `realloc' or `free'.  The behavior is undefined if
1530   you dereference this pointer.
1531
1532 * The C library now runs on Sony NEWS m68k machines running either
1533   NewsOS 3 or NewsOS 4.
1534
1535 * The new `syscall' function is a system-dependent primitive function
1536   for invoking system calls.  It has the canonical behavior on Unix
1537   systems, including unreliable return values for some calls (such as
1538   `pipe', `fork' and `getppid').
1539
1540 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
1541   to `EAGAIN', which is the preferred name.  On systems whose kernels
1542   use two distinct codes, the C library now translates EWOULDBLOCK to
1543   EAGAIN in every system call function.
1544 \f
1545 Version 1.06
1546
1547 * The GNU C Library Reference Manual is now distributed with the library.
1548   `make dvi' will produce a DVI file of the printed manual.
1549   `make info' will produce Info files that you can read on line using C-h i
1550   in Emacs or the `info' program.
1551   Please send comments on the manual to bug-glibc-manual@gnu.org.
1552
1553 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
1554
1555 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
1556
1557 * Jason Merrill has contributed a port to the Sequent Symmetry running
1558   Dynix version 3 (i386-sequent-dynix).
1559
1560 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
1561   ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
1562
1563 * New function `memory_warnings' lets you arrange to get warnings when
1564   malloc is running out of memory to allocate, like Emacs gives you.
1565
1566 * The C library now contains the relocating allocator used in Emacs 19 for
1567   its editing buffers.  This allocator (ralloc) minimizes allocation
1568   overhead and fragmentation by moving allocated regions around whenever it
1569   needs to.  You always refer to a ralloc'd region with a "handle" (a
1570   pointer to a pointer--an object of type `void **').
1571
1572 * There is a new `printf' format: `%m' gives you the string corresponding
1573   to the error code in `errno'.
1574
1575 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
1576   or `%[' conversion, but instead of filling in a fixed-sized buffer you
1577   pass, the `a' modifier says to fill in a `char **' you pass with a
1578   malloc'd string.
1579
1580 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
1581   `FNM_CASEFOLD'.  `FNM_LEADING_DIR' lets a pattern like `foo*' match a
1582   name like `foo/bar'.  `FNM_CASEFOLD' says to ignore case in matching.
1583
1584 * `mkstemp' is a traditional Unix function to atomically create and open a
1585   uniquely-named temporary file.
1586 \f
1587 Version 1.05
1588
1589 * The standard location for the file that says what the local timezone is
1590   has changed again.  It is now `/usr/local/etc/localtime' (or more
1591   precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
1592
1593 * The distribution no longer contains any files with names longer than 14
1594   characters.
1595
1596 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
1597   These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
1598
1599 * New functions `ttyslot' and `syslog' from 4.4 BSD.
1600 \f
1601 Version 1.04
1602
1603 * The configuration process has changed quite a bit.  The `configure'
1604   script is now used just like the configuration scripts for other GNU
1605   packages.  The `sysdeps' directory hierarchy is much rearranged.
1606   The file `INSTALL' explains the new scheme in detail.
1607
1608 * The header files no longer need to be processed into ANSI C and
1609   traditional C versions.  There is just one set of files to install, and
1610   it will work with ANSI or old C compilers (including `gcc -traditional').
1611
1612 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
1613   MIPS DECStation running Ultrix 4.
1614
1615 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
1616   Tom Quinn contributed the initial code.  The GNU C library can NOT yet be
1617   made itself into a shared library.
1618
1619 * Yet further improved support for the i386, running 4.3 BSD-like systems
1620   (such as Mach 3 with the Unix single-server), or System V.
1621
1622 * New function `strncasecmp' to do case-insensitive string comparison
1623   with limited length.
1624
1625 * New function `strsep' is a reentrant alternative to `strtok'.
1626
1627 * New functions `scandir' and `alphasort' for searching directories.
1628
1629 * New function `setenv' is a better interface to `putenv'.
1630
1631 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
1632   function for traversing a directory tree.
1633
1634 * The GNU obstack package is now also part of the C library.
1635   The new function `open_obstack_stream' creates a stdio stream that
1636   writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
1637   formatted output directly to an obstack.
1638
1639 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
1640   cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
1641
1642 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
1643
1644 * The new functions `strfry' and `memfrob' do mysterious and wonderful
1645   things to your strings.
1646
1647 * There are some new test programs: test-fseek, testmb, and testrand.
1648
1649 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
1650   These ports are not finished, but are a good starting place for really
1651   supporting those systems.
1652
1653 * `/etc/localtime' is now the standard location for the file that says what
1654   the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
1655   This follows the general principle that `/etc' is the place for all local
1656   configuration files.
1657
1658 * The C library header files now use `extern "C"' when used by the C++
1659   compiler, so the C library should now work with C++ code.
1660
1661 * The header file <bstring.h> is gone.  <string.h> now declares bcopy,
1662   bcmp, bzero, and ffs.  (Update: nowadays these functions are declared
1663   in <strings.h>.)
1664
1665 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
1666   function which uses the `merge sort' algorithm, and is said to be
1667   significantly faster than the old GNU `qsort' function.  Merge sort is
1668   now the standard `qsort' function.  The new algorithm can require a lot
1669   of temporary storage; so, the old sorting function is called when the
1670   required storage is not available.
1671
1672 * The C library now includes Michael Glad's Ultra Fast Crypt, which
1673   provides the Unix `crypt' function, plus some other entry points.
1674
1675 * The code and header files taken from 4.4 BSD have been updated with the
1676   latest files released from Berkeley.
1677 \f
1678 ----------------------------------------------------------------------
1679 Copyright information:
1680
1681 Copyright (C) 1992-1999,2000,2001,2002,2003,2004,2005,2006
1682         Free Software Foundation, Inc.
1683
1684    Permission is granted to anyone to make or distribute verbatim copies
1685    of this document as received, in any medium, provided that the
1686    copyright notice and this permission notice are preserved,
1687    thus giving the recipient permission to redistribute in turn.
1688
1689    Permission is granted to distribute modified versions
1690    of this document, or of portions of it,
1691    under the above conditions, provided also that they
1692    carry prominent notices stating who last changed them.
1693 \f
1694 Local variables:
1695 version-control: never
1696 End: