1 GNU C Library NEWS -- history of user-visible changes. 2010-10-11
2 Copyright (C) 1992-2009, 2010 Free Software Foundation, Inc.
3 See the end for copying conditions.
5 Please send GNU C library bug reports via <http://sources.redhat.com/bugzilla/>
6 using `glibc' in the "product" field.
10 * The following bugs are resolved with this release:
12 7066, 10851, 11611, 11640, 11701, 11840, 11856, 11883, 11903, 11904,
13 11968, 11979, 12005, 12037, 12067, 12077, 12092, 12107
15 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
17 * POWER7 optimizations: memset, memcmp, strncmp
19 * New optimized string functions for x86-64: strnlen (SSE2),
20 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
21 Implemented by Ulrich Drepper.
25 * The following bugs are resolved with this release:
27 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915, 10918,
28 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001, 11007,
29 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070, 11093,
30 11115, 11120, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
31 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
32 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
33 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
34 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
36 * New interfaces: pthread_getname_np, pthread_setname_np
38 * New Linux interface: recvmmsg
40 * STT_GNU_IFUNC implemented for Sparc by David Miller.
42 * The dynamic linker now recognizes supported ABI versions from the
43 EI_ABIVERSION field in the ELF header.
44 Implemented by Ulrich Drepper.
46 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
47 will not be used to fill in password fields in the passwd.byname replies.
48 Instead it is used to synthesize the shadow.byname table, should it be
49 missing. This is a useful mode in some installations involving Solaris.
50 Implemented by Ulrich Drepper.
52 * New locales: kok_IN, sq_MK, cv_RU
56 * The following bugs are resolved with this release:
58 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
59 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
60 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
61 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
62 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
63 10789, 10817, 10823, 10840, 10847
65 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
67 Implemented by Ulrich Drepper.
69 * Checking version of longjmp added that fails if an uninitialized stack
70 frame would be created. Implemented by Ulrich Drepper.
72 * STT_GNU_IFUNC is now supported in static executables.
73 Implemented by H.J. Lu.
75 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
77 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
78 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
79 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
80 Contributed by H.J. Lu.
82 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
83 Implemented by Ulrich Drepper.
85 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
87 Contributed by H.J. Lu.
89 * Support for fma instruction in AVX on x86-64.
90 Implemented by H.J. Lu and Ulrich Drepper.
92 * AVX support in x86-64 auditing support in ld.so.
93 Implemented by H.J. Lu.
95 * STB_GNU_UNIQUE support added.
96 Implemented by Ulrich Drepper.
98 * Implement second fallback mode for optimized DNS lookup for even more
99 broken environments. If two requests from the same port are not
100 handled correctly close the socket and open a new one before sending
101 the second request. The 'single-request-reopen' option in /etc/resolv.conf
102 can be used to select this mode right away, instead of rediscovering the
103 necessity is every process again.
104 Implemented by Ulrich Drepper.
106 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
107 Implemented by Adam Tkac.
109 * Optimized iconv conversions for S390x.
110 Implemented by Andreas Krebbel.
112 * Using condvars with PI mutexes is now more efficient due to kernel
113 support for requeueing to PI futexes. NPTL support added for x86-64.
114 Implemented by Ulrich Drepper.
116 * New locales: ps_AF, my_MM
120 * The following bugs are resolved with this release:
122 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
123 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
124 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
125 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
126 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
128 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
129 Implemented by Ulrich Drepper.
131 * New Linux interfaces: accept4, fallocate, fallocate64.
132 Implemented by Ulrich Drepper.
134 * Correct declarations of string function when used in C++ code. This
135 could lead to compile errors for invalid C++ code.
137 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
140 * New POSIX 2008 interface: psiginfo
141 Implemented by Ulrich Drepper.
143 * New ISO C++1x interfaces: quick_exit, at_quick_exit
144 Implemented by Ulrich Drepper.
146 * Support for selecting between multiple function definitions at runtime
147 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
149 * The libcrypt library can now use the hash function implementations in
150 NSS. Implemented by Ulrich Drepper.
152 * The malloc implementation can be compiled to be less memory efficient
153 but higher performing in multi-threaded programs.
154 Implemented by Ulrich Drepper.
156 * New locales: nan_TW@latin, ks_IN
158 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
159 Implemented by Ulrich Drepper.
161 * Extended printf hook support. It is possible to use user-defined types
162 and extend existing format specifiers.
163 Implemented by Ulrich Drepper.
165 * Handling for group shadow files has been added.
166 Implemented by Ulrich Drepper.
168 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
169 servers (the case, e.g., for some people using the built-in DNS
170 server in ADSL modems/routers). There is a once-per-process timeout
171 in case of a broken server. To avoid it, users can run nscd or put
172 'options single-request' in /etc/resolv.conf.
173 Implemented by Ulrich Drepper.
177 * The following bugs are resolved with this release:
179 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
180 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
181 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
182 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
183 6968, 6974, 6980, 6995, 7008, 7009, 7029
185 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
186 up at the same time. Implemented by Ulrich Drepper.
188 * TLS descriptors for LD and GD on x86 and x86-64.
189 Implemented by Alexandre Oliva.
191 * getaddrinfo now handles DCCP and UDPlite.
192 Implemented by Ulrich Drepper.
194 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
195 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
196 Implemented by Ulrich Drepper.
198 * New implementation of memmem, strstr, and strcasestr which is O(n).
199 Implemented by Eric Blake.
201 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
203 * Implement "e" option for popen to open file descriptor with the
204 close-on-exec flag set. Implemented by Ulrich Drepper.
206 * Implement "b" mode for fmemopen. In this mode writes writes don't
207 implicitly add a NUL byte and seeks from the end of the buffer really
208 use the buffer end, not the string length as the basis.
209 Implemented by Ulrich Drepper.
211 * Many functions, exported and internal, now atomically set the close-on-exec
212 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
214 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
216 Implemented by Pravin Satpute.
218 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
222 * The following bugs are resolved with this release:
224 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
225 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
226 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
227 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
228 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
229 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
230 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
232 * New locales: bo_CN, bo_IN, shs_CA.
234 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
236 * Sorting rules for some Indian languages (Devanagari and Gujarati).
237 Implemented by Pravin Satpute.
239 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
241 * nscd caches now all timeouts for DNS entries
242 Implemented by Ulrich Drepper.
244 * nscd is more efficient and wakes up less often.
245 Implemented by Ulrich Drepper.
247 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
248 vdprintf, and obstack_vprintf.
249 Implemented by Jakub Jelinek.
251 * Faster memset for x86-64.
252 Implemented by Harsha Jagasia and H.J. Lu.
254 * Faster memcpy on x86.
255 Implemented by Ulrich Drepper.
257 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
258 Implemented by Ulrich Drepper.
260 * Faster sqrt and sqrtf implemention for some PPC variants.
261 Implemented by Stephen Munroe.
265 * The following bugs are resolved with this release:
267 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
268 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
269 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
270 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
271 5071, 5103, 5104, 5112, 5113, 5184, 5186
273 * More checking functions: fread, fread_unlocked, open*, mq_open.
274 Implemented by Jakub Jelinek and Ulrich Drepper.
276 * Extend fortification to C++. Implemented by Jakub Jelinek.
278 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
279 by not recognizing 'a' as a modifier when those specs are requested.
280 Implemented by Jakub Jelinek.
282 * PPC optimizations to math and string functions.
283 Implemented by Steven Munroe.
285 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
286 options to be passed. Implemented by Ulrich Drepper.
288 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
290 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
291 Implemented by Ulrich Drepper.
293 * Handle private futexes in the NPTL implementation.
294 Implemented by Jakub Jelinek and Ulrich Drepper.
296 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
297 Implemented by Roland McGrath and Ulrich Drepper.
299 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
301 * SHA-256 and SHA-512 based password encryption.
302 Implemented by Ulrich Drepper.
304 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
305 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
308 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
309 Implemented by Ulrich Drepper.
313 * The following bugs are resolved with this release:
315 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
316 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
317 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
318 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
319 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
320 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
321 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
324 * New Linux interfaces: epoll_pwait, sched_getcpu.
326 * New generic interfaces: strerror_l.
328 * nscd can now cache the services database. Implemented by Ulrich Drepper.
332 * The following bugs are resolved with this release:
334 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
335 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
336 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
337 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
338 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
339 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
340 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
341 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
342 3225, 3251, 3252, 3253, 3273
344 * For Linux, the sorting of addresses returned by getaddrinfo now also
345 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
346 Implemented by Ulrich Drepper.
348 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
349 Implemented by Ulrich Drepper.
351 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
353 * New iconv module for MIK. Contributed by Alexander Shopov.
355 * For sites with broken group and/or passwd database, the auto-propagate
356 option of nscd can prevent creating ID lookup entries from the results
357 of a name lookup and vice versa. This usually is no problem but some
358 site might have problems with the default behavior.
359 Implemented by Ulrich Drepper.
361 * Iterating over entire database in NIS can be slow. With the
362 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
363 to trade time for memory. The entire database will be read at once.
364 Implemented by Ulrich Drepper.
366 * The interfaces introduced in RFC 3542 have been implemented by
369 * Support for the new ELF hash table format was added by Ulrich Drepper.
371 * Support for priority inheritance mutexes added by Jakub Jelinek and
374 * Support for priority protected mutexes added by Jakub Jelinek.
376 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
377 or_IN, csb_PL, fy_NL, sr_ME.
381 * More overflow detection functions.
383 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
384 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
386 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
387 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
388 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
389 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
390 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
391 by Masahide Washizawa.
393 * It is now possible to install audit libraries for the dynamic linker using
394 LD_AUDIT. Implemented by Ulrich Drepper.
396 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
397 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
398 For a libc and libpthread that works well on Linux 2.4 kernels, we
399 recommend using the stable 2.3 branch.
401 * The new function open_wmemstream acts like open_memstream,
402 but uses a wchar_t wide character buffer.
404 * The new function ppoll is an improved version of poll, similar to pselect.
406 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
407 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
408 renameat, unlinkat, linkat, symlinkat, readlinkat.
410 * New Linux kernel system calls: unshare,
411 inotify_init, inotify_add_watch, inotify_rm_watch.
413 * The euidaccess function is now also known by the alias eaccess,
414 for compatibility with some other systems.
416 * Timezone data updated to 2006b version.
420 * The following bugs are resolved with this release:
422 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
423 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
424 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
425 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
426 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
427 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
429 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
431 * As of this release, GCC 4 can be used to compile the C Library.
433 * Timezone data updated to 2005m version.
437 * The following bugs are resolved with this release:
439 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
440 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
441 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
442 777, 787, 821, 822, 823, 825
444 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
448 * Support for RFC 3678. Real implementations exist only for Linux so far.
449 Implemented by Ulrich Drepper.
451 * nscd can now cache entries persistently. Expiring entries are reloaded.
452 For speedups the cache can be shared in memory with client processes.
453 Implemented by Ulrich Drepper.
455 * nscd can now perform SELinux checks.
456 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
458 * getaddrinfo queries are now cached. Canonical name lookup is performed
460 Implemented by Ulrich Drepper.
462 * The nothrow function attribute is used when headers are used by gcc when
463 compiling C code. This can avoid significant amounts of exception
466 * The malloc functions perform more error checking and are stricter when
467 it comes to reacting on errors. The default action is to terminate
468 the process after showing an error message. Implemented by Ulrich Drepper.
470 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
471 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
473 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
474 namespaces using the new function dlmopen(). This feature is of course,
475 like most other dynamic loading functionality, not available in statically
476 linked applications. Implemented by Ulrich Drepper.
478 * Low-overhead boundary checking variants of string and some stdio functions
479 were added. These are to be used in conjunction with a gcc patch by
480 Jakub Jelinek which adds calls to these functions if possible.
481 Implemented by Jakub Jelinek and Ulrich Drepper.
483 * Old code for several operating systems and machine architectures that
484 have not been in working condition in a long time have been removed from
485 the main source tree maintained by the GNU C Library's maintainers.
486 These files are now reside in the separate `ports' source module
487 that is usable as an add-on when building the library.
491 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
492 interrogate the dynamic linker, compatible with the Solaris interface.
494 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
495 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
497 * getifaddrs now uses the netlink interface on Linux to get its information.
498 Implemented by Thorsten Kukuk.
500 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
501 Implemented by Ulrich Drepper.
503 * support for non-executable stacks on x86 has been added. Changes mostly
506 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
509 * getaddrinfo now performs destination address selection according to
514 * Thread-safe interfaces for many functions that access locale data
515 were added in version 2.3, but these features were omitted from NEWS.
516 Many functions have variants with an `_l' suffix that take a `locale_t'
517 object as a parameter rather than consulting the current locale.
518 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
519 create and maintain `locale_t' objects. Additionally, the new function
520 `uselocale' sets "the current locale" (as used by functions not so
521 parameterized) set for an individual thread. These features were added
522 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
524 * The functions getresuid, getresgid, setresuid, and setresgid, which
525 have long been available on Linux, are now declared in <unistd.h>
526 and are now also available on the Hurd.
528 * ELF thread-local storage support (TLS) now works on x86-64.
530 * The new dynamic string token $LIB is expanded in shared library names.
531 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
533 * Aldy Hernandez contributed complete software floating point support for
534 PowerPC machines with no FPU.
536 * fexecve is implemented on Linux.
538 * The `btowc' function should work at least twice as fast due to
539 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
541 * With approriate thread add-ons cancelable functions are now implemented
542 in libc.so as well. No need to call the function in libpthread. This
543 change allowed to finally disable the incorrect and expensive handling
544 of weak definition in ld.so.
546 * Yet more PLT entries in libc.so have been removed. We finally arrived
547 at the bare minimum. Startup times improved appropriately.
549 * Support for the new Linux/x86 system call interface was added. The
550 AT_SYSINFO auxiliary vector entry is recognized and handled.
554 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
557 * iconv (the program and the interface) now accepts empty names (excluding
558 options like //TRANSLIT) to mean "use charset of current locale".
560 * localedef can now transliterate characters in strings which are not in
561 the provided charmap. The information from the input locale is used.
563 * Prelinking support was added for ELF targets. This requires additional
564 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
566 * Read-only stdio streams now use mmap to speed up operation by eliminating
567 copying and buffer underflows. To use add 'm' to the mode string of
568 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
570 * The malloc functions were completely rewritten by Wolfram Gloger based
571 on Doug Lea's malloc-2.7.0.c.
573 * Isamu Hasegawa contributed a completely new and POSIX-conformant
574 implementation of regex.
576 * Bruno Haible upgraded the iconv and locale implementation to support
579 * Contents of the LC_* and LANG environment variables in the CEN style are
580 not recognized anymore. It never was used. Change by Ulrich Drepper.
582 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
583 thread-local storage (TLS) ABI on some platforms.
584 Changes by Ulrich Drepper. SH support by Kaz Kojima.
586 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
587 EUC-JISX0213, and TSCII.
589 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
590 BSD-compatible interface for getting all network interface addresses.
591 Implementation for IPv4 by Roland McGrath.
593 * Loading of locale data is faster due to the introduction of a locale
594 archive. Implemented by Roland McGrath and Ulrich Drepper.
596 * Startup times are significantly reduced by not using exported functions
597 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
600 * Steven Munroe contributed a port to PowerPC64/Linux.
604 * The Hurd now uses the GNU libio implementation of stdio rather than the
605 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
607 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
608 with the same behavior as the Linux system call of the same name.
612 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
613 128-bit long double format.
615 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
616 IBM1161, and IBM1162 charsets.
618 * Andreas Jaeger contributed a port to x86-64/Linux.
620 * Peter Bruin contributed a port to PowerPC/Hurd.
622 * libc functions using I/O streams now can handle wide-oriented streams
625 * optimizations in the dynamic linker. Binaries created by recent binutils
626 versions start up quicker due to reduced time spent on relocations.
628 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
632 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
633 asinh, atanh, j0 for the 128-bit long double format.
635 * Bruno Haible updated all the code handling Unicode in some form to
638 * Speed of regex for single-byte locales is back to previous levels.
639 Patch by Isamu Hasegawa.
641 * Alpha, SPARC, and IA-64 now also using floating stacks.
643 * Startup time of internationalized applications greatly improved through
644 iconv cache. Use iconvconfig to generate the cache file.
645 Contributed by Ulrich Drepper.
647 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
648 severe performance problems. Patch by David Mosberger.
650 * The Hurd port got a lot more functionality like AIO, various stdio
651 extensions, etc. Mainly done by Roland McGrath.
653 * mtrace can now lookup symbols in shared libraries.
657 * Intel's IA-64 math library is largely integrated. It provides fast and
658 accurate implementatations for most basic and standard math functions
659 in float, double, and long double format.
661 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
662 and asin for the 96-bit long double format and asin, log, tan for the
663 128-bit long double format.
665 * The beginning of a last-bit accurate math library by IBM Haifa were added.
666 The basic double functions exist today. Contributed by Abraham Ziv
667 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
668 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
670 * An asynchronous name lookup library was added. The interface is designed
671 after POSIX AIO. The proposal was circulated beforehand to get comments.
672 No negative ones came in. Implemented by Ulrich Drepper.
674 * Port to S390/64bit contributed by Martin Schwidefsky
675 <schwidefsky@de.ibm.com>.
677 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
678 of functions for Linux/IA-64.
680 * The RPC code is now thread safe. Threads can now use the same service
681 of different services at the same time. Patch by Eric Norum
682 <eric.norum@usask.ca> with some help by Ulrich Drepper.
684 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
685 family of functions for Linux/S390.
687 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
688 of functions for Linux/x86.
690 * Port to Linux/CRIS contributed by Axis Communications.
694 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
695 we can now check for namespace violations and missing declarations. The
696 result is that almost all headers are now Unix-compliant (as defined in
697 the upcoming XPG6). The negative side is that some programs might need
698 corrections, too, if they depend on the incorrect form of the headers in
699 previous versions which defined too many symbols and included too many
702 * regex now handles multibyte character sets correctly.
703 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
705 * iconv (the program) does now conform to the upcoming XPG6 and handles
706 charmaps. Instead of the charset names the path of charmaps can be
707 provided and the conversion happens based on this data.
708 Contributed by Ulrich Drepper.
710 * The locale program now provides detailed information about the installed
715 only lists the names of the supported locales
719 provides details such as country, language, and codeset name.
720 Contributed by Ulrich Drepper.
724 * The gencat program now parses the input file according to the charset
725 selected by the LC_CTYPE category. This is important for stateful
726 character sets. To make generating catalogs easier there is a way
727 to overwrite the charset selected by the locale: before the first
728 message or $ quote line the catalog can contain a line like
732 to select the charset (ISO-8859-2 in this case).
734 Implemented by Shinya Hanataka and Ulrich Drepper.
736 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
737 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
738 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
740 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
741 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
743 * The LANGUAGE environment variable is now ignored unless the locale is
744 changed from the default "C" locale.
746 * The usual bug fixes.
750 * Greg McGary added runtime support for bounds checking using gcc's
751 new -fbounded-pointers option. ix86 target is complete. PowerPC
754 * Thorsten Kukuk added secure mode support to nscd.
756 * The Berkeley db libraries have been removed.
758 Related, the nss_db module is now in a separate package since it
759 obviously requires a database library being available.
761 * Wide character I/O streams implemented by Ulrich Drepper.
763 * Functions from the extended socket API added by Ulrich Drepper.
765 * Functions feenableexcept and fedisableexcept to control the
766 behaviour of individual exceptions have been added by Andreas Jaeger.
768 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
770 * The resolver code has been updated from bind 8.2.3-T5B which supports
771 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
774 This change could in some situations effect backward compatibility. Since
775 now `_res' is a thread-local instead of a global variable, modifying it
776 in one thread does not have any effect in other threads.
778 The resolver library was also extended to allow IPv6 as the transport
779 protocol for the requests. This work was done by Stig Venaas.
781 * Compatibility code for K&R C compilers has been removed from the
782 header files. A ISO C compiler is needed to use the library
783 (conforming to either C89 or C99 standard).
785 * Complete rewrite of the localedef program to support multibyte character
786 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
787 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
788 Implemented by Ulrich Drepper.
790 Bruno Haible significantly improved the generation and use of the data
791 structures for the wide character tables.
793 * Plural handling in gettext implemented by Ulrich Drepper.
795 * The utmp daemon has been removed.
797 * The port to MIPS-Linux has been finished by Andreas Jaeger.
799 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
802 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
804 * POSIX barriers implemented by Kaz Kylheku.
806 * POSIX spawn function family implemented by Ulrich Drepper.
808 * POSIX spinlocks are now available.
810 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
812 * the configure option --enable-kernel=X.Y.Z allows to strip out
813 compatibility for kernel versions before X.Y.Z. This is currently only
814 implemented for Linux.
816 * the sockaddr_in6 structure changed. The IPv6 working group added a new
817 field sin6_scope_id. This means that all programs using IPv6 should be
818 recompiled. Don't expect binary compatibility with previous glibc
821 * various conversion modules for IBM character sets contributed by
824 * IA-64 port by Jes Sorensen and HJ Lu.
826 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
827 Compiling the GNU C Library for Linux/ia64
828 ******************************************
830 Please refer to the file INSTALL in the same directory as you found
831 this file for general information about configuring and compiling
834 For general inquiries about glibc under Linux/ia64 please use the
835 following mailing list linux-ia64@linuxia64.org or one of the relevant
838 Recommended Tools for Compilation
839 =================================
841 In order for glibc-2.2 to build correctly on the ia64 you need at
842 least the following versions of the GNU tools (the :
844 * The Cygnus toolchain snapshot for the ia64 as of August 4
845 including the provided set of patches. It is however recommend
846 you use the October 24 toolchain snapshot or a more recent version.
848 OR alternatively you can try the following (the Cygnus toolchain is
849 the recommended solution):
851 * GCC and binutils, GAS and GNU LD out of CVS from
852 sources.redhat.com as of August 28, 2000 or later. The CVS tree
853 may require special patches to work properly on the ia64.
855 Configuring and compiling GNU Libc for Linux/ia64
856 =================================================
858 The library requires Linux kernel version 2.4.0-test4-000728 or
859 later to funtion properly. Besides that it support for debug libraries
860 is currently untested. Hence the following options
861 are required for configuring the library:
863 --disable-debug --enable-kernel=2.4.0
865 It is also important that you make sure the library picks up the
866 appropriate kernel header files, if you do not have recent enough
867 kernel headers in /usr/src/linux/include, you should use the
868 --with-headers=<path> option to specify the location.
870 As an example I personally use the following options to configure
875 --enable-kernel=2.4.0
879 --with-headers=/home/jes/linux/include
884 Jes Sorensen <jes@linuxcare.com>,
886 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
900 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
902 * New xdr functions are added; some rpc functions are now 64bit clean.
904 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
906 * Fixed known incompatibilities with glibc 2.0.
908 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
910 * Optimized a number of functions (especially the ELF dynamic loader).
912 * Update timezone data files.
914 * lots of charmaps corrections
916 * some new locale definitions and charmaps
921 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
922 conform to POSIX member type requirements. Symbol versions have been
923 adjusted as needed within the library, and for direct use by applications,
924 but there is potential for problems if third-party libraries use
925 struct timeval as part of their interface. This does not present
926 a problem for X and other "essential" system libraries.
928 * An additional locale model to support C++ Standard Library locale
929 model and probably more was implemented by Ulrich Drepper.
931 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
934 * Miles Bader provided the `argp' function family to support hierachical
935 command line argument parsing, layered on top of getopt.
937 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
939 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
942 * scanf recognizes the %a and %A format for scanning floating point numbers.
944 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
945 information and interfaces for the available integer types.
947 * about 130 new math functions were added to implement the ISO C9x math
950 * the new header <complex.h> contains definitions of the complex math
951 functions from ISO C 9X.
953 * the new header <tgmath.h> defines generic macros to use complex or
954 real valued functions.
956 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
958 * Andreas Jaeger provided a test suite for the math library.
960 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
962 * Ulrich Drepper added character set conversion functions (iconv).
964 * Optimized string functions have been added.
966 * The localedata addon is now part of glibc.
968 * An implementation of profiling shared libraries was added by Ulrich Drepper.
970 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
971 daemon for NSS (nscd).
973 Missing a better place here are some numbers on improvements. Under
974 Linux 2.1.125 un-tar-ing the kernel sources takes
978 using local files 12.19s 6.88s 22.91s
980 using NIS 13.92s 8.91s 26.34s
982 using NIS & nscd 10.37s 7.34s 25.30s
984 using NIS+ 27.57s 30.37s 640.46s
986 using NIS+ & nscd 10.25s 7.83s 26.51s
988 using NIS & old nscd [1] 13.83s 8.32s 29.60s
990 Keep in mind that non-namelookup related operations dominate above times.
991 It was just a common complain that using NIS+ unpacking the kernel is
994 [1] The old nscd implementation is not available anymore since it was
995 distributed with glibc up to version 2.0.98 and thus is now replaced.
997 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
999 * Mark Kettenis provided a Hesiod NSS module.
1001 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1002 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1004 * rcmd can now handle netgroups (Dick Streefland).
1006 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1009 * Support for the IPv6 protocol has been added to the socket API, as per the
1010 latest draft standards.
1012 * Support for Linux 2.2 has been added.
1014 * Interface changes relative to the latest 2.0.x release:
1015 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1016 addseverity NEW: Unix98
1017 alphasort64 NEW: LFS
1018 argp_err_exit_status NEW: argp, GNU ext
1019 argp_error NEW: argp, GNU ext
1020 argp_failure NEW: argp, GNU ext
1021 argp_help NEW: argp, GNU ext
1022 argp_parse NEW: argp, GNU ext
1023 argp_program_bug_address NEW: argp, GNU ext
1024 argp_program_version NEW: argp, GNU ext
1025 argp_program_version_hook NEW: argp, GNU ext
1026 argp_state_help NEW: argp, GNU ext
1027 argp_usage NEW: argp, GNU ext
1028 authdes_create NEW: Secure RPC
1029 authdes_getucred NEW: Secure RPC
1030 authdes_pk_create NEW: Secure RPC
1031 backtrace NEW: GNU ext.
1032 backtrace_symbols NEW: GNU ext.
1033 backtrace_symbols_fd NEW: GNU ext.
1035 cacosf NEW: ISO C 9x
1036 cacosh NEW: ISO C 9x
1037 cacoshf NEW: ISO C 9x
1038 cacoshl NEW: ISO C 9x
1039 cacosl NEW: ISO C 9x
1046 casinf NEW: ISO C 9x
1047 casinh NEW: ISO C 9x
1048 casinhf NEW: ISO C 9x
1049 casinhl NEW: ISO C 9x
1050 casinl NEW: ISO C 9x
1052 catanf NEW: ISO C 9x
1053 catanh NEW: ISO C 9x
1054 catanhf NEW: ISO C 9x
1055 catanhl NEW: ISO C 9x
1056 catanl NEW: ISO C 9x
1057 cbc_crypt NEW: Secure RPC
1061 ccoshf NEW: ISO C 9x
1062 ccoshl NEW: ISO C 9x
1068 cimagf NEW: ISO C 9x
1069 cimagl NEW: ISO C 9x
1070 clearerr_locked REMOVED
1071 clntunix_create NEW: sunrpc ext
1073 clog10 NEW: ISO C 9x
1074 clog10f NEW: ISO C 9x
1075 clog10l NEW: ISO C 9x
1085 cprojf NEW: ISO C 9x
1086 cprojl NEW: ISO C 9x
1088 crealf NEW: ISO C 9x
1089 creall NEW: ISO C 9x
1094 csinhf NEW: ISO C 9x
1095 csinhl NEW: ISO C 9x
1098 csqrtf NEW: ISO C 9x
1099 csqrtl NEW: ISO C 9x
1103 ctanhf NEW: ISO C 9x
1104 ctanhl NEW: ISO C 9x
1106 des_setparity NEW: Secure RPC
1107 ecb_crypt NEW: Secure RPC
1108 endutxent NEW: Unix98
1110 exp10f NEW: ISO C 9x
1111 exp10l NEW: ISO C 9x
1115 fattach NEW: STREAMS
1116 fdetach NEW: STREAMS
1120 feclearexcept NEW: ISO C 9x
1121 fegetenv NEW: ISO C 9x
1122 fegetexceptflag NEW: ISO C 9x
1123 fegetround NEW: ISO C 9x
1124 feholdexcept NEW: ISO C 9x
1126 feraiseexcept NEW: ISO C 9x
1127 ferror_locked REMOVED
1128 fesetenv NEW: ISO C 9x
1129 fesetexceptflag NEW: ISO C 9x
1130 fesetround NEW: ISO C 9x
1131 fetestexcept NEW: ISO C 9x
1132 feupdateenv NEW: ISO C 9x
1133 fflush_locked REMOVED
1137 fgets_unlocked NEW: GNU ext.
1138 fileno_locked REMOVED
1150 fputc_locked REMOVED
1151 fputs_unlocked NEW: GNU ext.
1152 fread_unlocked NEW: GNU ext.
1157 fstatvfs NEW: Unix98
1161 ftruncate64 NEW: LFS
1163 fwrite_unlocked NEW: GNU ext.
1164 gai_strerror NEW: IPv6
1168 getchar_locked REMOVED
1170 getdate_err NEW: Unix98
1171 getdate_r NEW: GNU ext.
1173 getnameinfo NEW: IPv6
1174 getnetname NEW: Secure RPC
1175 getpmsg NEW: STREAMS
1176 getpt NEW: Unix98 PTY
1177 getrlimit64 NEW: LFS
1178 getutxent NEW: Unix98
1179 getutxid NEW: Unix98
1180 getutxline NEW: Unix98
1181 glob64 NEW: GNU ext.
1182 globfree64 NEW: GNU ext.
1183 gnu_get_libc_release NEW: GNU ext.
1184 gnu_get_libc_version NEW: GNU ext.
1185 grantpt NEW: Unix98 PTY
1186 host2netname NEW: Secure RPC
1188 iconv_close NEW: iconv
1189 iconv_open NEW: iconv
1190 if_freenameindex NEW: IPv6
1191 if_indextoname NEW: IPv6
1192 if_nameindex NEW: IPv6
1193 if_nametoindex NEW: IPv6
1194 in6addr_any NEW: IPv6
1195 in6addr_loopback NEW: IPv6
1196 inet6_isipv4mapped NEW: IPv6
1197 isastream NEW: STREAMS
1198 iswblank NEW: GNU ext.
1199 key_decryptsession NEW: Secure RPC
1200 key_decryptsession_pk NEW: Secure RPC
1201 key_encryptsession NEW: Secure RPC
1202 key_encryptsession_pk NEW: Secure RPC
1203 key_gendes NEW: Secure RPC
1204 key_get_conv NEW: Secure RPC
1205 key_secretkey_is_set NEW: Secure RPC
1206 key_setnet NEW: Secure RPC
1207 key_setsecret NEW: Secure RPC
1208 llrint NEW: ISO C 9x
1209 llrintf NEW: ISO C 9x
1210 llrintl NEW: ISO C 9x
1211 llround NEW: ISO C 9x
1212 llroundf NEW: ISO C 9x
1213 llroundl NEW: ISO C 9x
1218 lrintf NEW: ISO C 9x
1219 lrintl NEW: ISO C 9x
1220 lround NEW: ISO C 9x
1221 lroundf NEW: ISO C 9x
1222 lroundl NEW: ISO C 9x
1224 makecontext NEW: Unix98
1225 mempcpy NEW: GNU ext.
1228 modify_ldt NEW: kernel
1232 nearbyint NEW: ISO C 9x
1233 nearbyintf NEW: ISO C 9x
1234 nearbyintl NEW: ISO C 9x
1235 netname2host NEW: Secure RPC
1236 netname2user NEW: Secure RPC
1237 nexttoward NEW: ISO C 9x
1238 nexttowardf NEW: ISO C 9x
1239 nexttowardl NEW: ISO C 9x
1243 passwd2des NEW: Secure RPC
1245 pow10f NEW: GNU ext.
1246 pow10l NEW: GNU ext.
1249 printf_size NEW: GNU ext.
1250 printf_size_info NEW: GNU ext.
1251 profil_counter REMOVED
1252 pthread_mutexattr_getkind_np REPLACED
1253 pthread_mutexattr_setkind_np REPLACED
1254 ptsname NEW: Unix98 PTY
1255 ptsname_r NEW: Unix98 PTY
1257 putchar_locked REMOVED
1258 putgrent NEW: GNU ext.
1260 putpmsg NEW: STREAMS
1261 pututxline NEW: Unix98
1265 readdir64_r NEW: LFS
1266 remquo NEW: ISO C 9x
1267 remquof NEW: ISO C 9x
1268 remquol NEW: ISO C 9x
1270 roundf NEW: ISO C 9x
1271 roundl NEW: ISO C 9x
1273 scalbln NEW: ISO C 9x
1274 scalblnf NEW: ISO C 9x
1275 scalblnl NEW: ISO C 9x
1277 sendfile NEW: kernel
1278 setcontext NEW: Unix98
1279 setrlimit64 NEW: LFS
1280 setutxent NEW: Unix98
1282 sigignore NEW: Unix98
1283 sigqueue NEW: POSIX.1b
1284 sigrelse NEW: Unix98
1285 sigset NEW: POSIX.1b
1286 sigtimedwait NEW: POSIX.1b
1287 sigwaitinfo NEW: POSIX.1b
1288 sincos NEW: GNU ext.
1289 sincosf NEW: GNU ext.
1290 sincosl NEW: GNU ext.
1294 strcasestr NEW: GNU ext.
1295 strtoimax NEW: ISO C 9x
1296 strtoumax NEW: ISO C 9x
1297 strverscmp NEW: GNU ext.
1298 svcauthdes_stats NEW: Secure RPC
1299 svcunix_create NEW: sunrpc etx
1300 svcunixfd_create NEW: sunrpc ext
1301 swapcontext NEW: Unix98
1302 tcgetsid NEW: Unix98 PTY
1303 tdestroy NEW: GNU ext.
1304 tgamma NEW: ISO C 9x
1305 tgammaf NEW: ISO C 9x
1306 tgammal NEW: ISO C 9x
1310 truncf NEW: ISO C 9x
1311 truncl NEW: ISO C 9x
1313 unlockpt NEW: Unix98 PTY
1314 updwtmpx NEW: Unix98
1315 user2netname NEW: Secure RPC
1316 utmpxname NEW: Unix98
1317 versionsort NEW: GNU ext.
1318 versionsort64 NEW: GNU ext.
1320 wcscasecmp NEW: GNU ext.
1321 wcsncasecmp NEW: GNU ext.
1322 wcsnlen NEW: GNU ext.
1323 wcstoimax NEW: ISO C 9x
1324 wcstoll NEW: ISO C 9x
1325 wcstoull NEW: ISO C 9x
1326 wcstoumax NEW: ISO C 9x
1328 wordexp NEW: POSIX.2
1329 wordfree NEW: POSIX.2
1330 write_profiling REMOVED
1331 xdecrypt NEW: Secure RPC
1332 xdr_authdes_cred NEW: Secure RPC
1333 xdr_authdes_verf NEW: Secure RPC
1334 xdr_cryptkeyarg NEW: Secure RPC
1335 xdr_cryptkeyarg2 NEW: Secure RPC
1336 xdr_cryptkeyres NEW: Secure RPC
1337 xdr_getcredres NEW: Secure RPC
1338 xdr_key_netstarg NEW: Secure RPC
1339 xdr_key_netstres NEW: Secure RPC
1340 xdr_keybuf NEW: Secure RPC
1341 xdr_keystatus NEW: Secure RPC
1342 xdr_netnamestr NEW: Secure RPC
1343 xdr_sizeof NEW: Secure RPC
1344 xdr_unixcred NEW: sunrpc ext
1345 xencrypt NEW: Secure RPC
1346 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1357 * inet_ntoa is thread-safe
1359 * updwtmp is moved from libutil to libc
1361 * rewrite of cbrt function
1363 * update of timezone data
1377 * add atoll function
1379 * fix complex problems in Berkeley DB code
1381 * fix math functions
1385 * fixed lots of header problems (especially Linux/GNU specific)
1387 * dynamic loader preserves all registers
1389 * Roland McGrath provided support for handling of auxiliary objects in
1390 the ELF dynamic loader.
1392 * support for parallel builds is improved
1396 * GNU extensions are no longer declared by default. To enable them you
1397 must define the macro `_GNU_SOURCE' in your program or compile with
1400 * The library has changed from using GNU ld symbol aliases to using weak
1401 symbols where available. The ELF object file format supports weak
1402 symbols; GNU ld also supports weak symbols in the a.out format. (There
1403 is also now support for other GNU ld extensions in ELF. Use the
1404 `--with-elf' option to configure to indicate you have ELF, and
1405 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1406 of many files which contained only symbol aliases, reducing the size of
1407 the source and the compiled library; many other files were renamed to
1408 less cryptic names previously occupied by the symbol alias files.
1409 There is a new header file <elf.h> for programs which operate on
1410 files in the ELF format.
1412 * Converted to Autoconf version 2, so `configure' has more options.
1413 Run `configure --help' to see the details.
1415 * The library can now be configured to build profiling, highly-optimized
1416 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1417 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1418 `configure' enable building these extra libraries. The shared library is
1419 built by default when using both ELF and GNU ld. When shared libraries
1420 are enabled, the new library `-ldl' is available for arbitrary run-time
1421 loading of shared objects; its interface is defined in <dlfcn.h>. The
1422 new header file <link.h> gives access to the internals of the run-time
1423 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1424 application of same name on other systems and it provides information
1425 about dynamically linked binaries.
1427 * The C library now provides the run-time support code for profiling
1428 executables compiled with `-pg'. Programs can control the profiling code
1429 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1430 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1431 the support for this file format was contributed by David Mosberger-Tang.
1433 * The math code has been replaced with a math library based on fdlibm from
1434 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1435 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1436 functions. The math functions now reside in a separate library, so
1437 programs using them will need to use `-lm' their linking commands.
1439 * John C. Bowman contributed optimized ix87 assembler inline functions.
1441 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1442 mechanism similar to that found in Solaris 2. This is now used for the
1443 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1444 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1445 file controls what services are used for each individual database. This
1446 works by loading shared libraries with names specified in `nsswitch.conf',
1447 so service modules can be changed or added at any time without even
1448 relinking any program. Currently there are the file, db, and NIS based
1449 NSS services available.
1451 * The new functions `strtoq' and `strtouq' parse integer values from
1452 strings, like `strtol' and `strtoul', but they return `long long int' and
1453 `unsigned long long int' values, respectively (64-bit quantities).
1455 * The new functions `strtof' and `strtold' parse floating-point values from
1456 strings, like `strtod', but they return `float' and `long double' values,
1457 respectively (on some machines `double' and `long double' are the same).
1459 * Ulrich Drepper has contributed new implementations of the floating-point
1460 printing and reading code used in the `printf' family of functions and
1461 `strtod', `strtof', and `strtold'. These new functions are perfectly
1462 accurate, and much faster than the old ones.
1464 * The implementation of the POSIX locale model was completely rewritten by
1465 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1466 to compile the POSIX locale definition.
1468 * The former dummy implementations of the strcoll and strxfrm function are
1469 now replaced by fully functional code contributed by Ulrich Drepper. The
1470 collation information comes from the POSIX locale definitions.
1472 * The new header <langinfo.h> defines an interface for accessing
1473 various locale-dependent data (using the locale chosen with `setlocale').
1475 * Ulrich Drepper has contributed a new suite of functions for operation on
1476 wide-character and multibyte-character strings, in <wchar.h>;
1477 and classification and case conversion of wide characters, in <wctype.h>.
1478 These new functions are conforming to the ISO C, Amendement 1 specification.
1480 * There is now a second implementation of the standard I/O library available.
1481 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1482 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1484 * You can now use positional parameter specifications in format strings
1485 for the `printf' and `scanf' families of functions. For example,
1486 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1487 ``Number 6, Mr Jones''. This is mainly useful when providing different
1488 format strings for different languages, whose grammars may dictate
1489 different orderings of the values being printed. To support this
1490 feature, the interface for `register_printf_handler' has changed; see
1491 the header file <printf.h> for details.
1493 * The `printf' and `scanf' families of functions now understand a new
1494 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1495 to group numbers as indicated by the locale; for `scanf' and friends, this
1496 says to accept as valid only a number with all the proper grouping
1497 separators in the right places. In the default "C" locale, numbers are
1498 not grouped; but locales for specific countries will define the usual
1499 conventions (i.e. separate thousands with `,' in the US locale).
1501 * The pgrp functions have been regularized, slightly incompatibly but much
1502 less confusingly. The core functions are now `getpgid' and `setpgid',
1503 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1504 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1505 provided for compatibility. There is no longer an incompatible `getpgrp'
1506 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1508 * The new header file <fts.h> and suite of functions simplify programs that
1509 operate on directory trees. This code comes from 4.4 BSD.
1511 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1512 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1513 NSS scheme used in glibc.
1515 * There is a new malloc debugging hook `__memalign_hook'.
1517 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1518 `unsigned int' in <sys/types.h>. These are for compatibility only and
1519 their use is discouraged.
1521 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1522 done differently, so that it works even without GNU ld.
1524 * New function `euidaccess' checks allowed access to a file like `access',
1525 but using the effective IDs instead of the real IDs.
1527 * The time zone data files have been updated for the latest and greatest
1528 local time conventions of the countries of the world.
1530 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
1533 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
1534 for formatting floating-point numbers. They are provided only for
1535 compatibility; new programs should use `sprintf' instead. There are
1536 also equivalent function for the `long double' floating-point type and
1537 all functions also exist in a reentrant form.
1539 * The new auxiliary library `-lutil' from 4.4 BSD contains various
1540 functions for maintaining the login-record files (primarily of use to
1541 system programs such as `login'), and convenient functions for
1542 allocating and initializing a pseudo-terminal (pty) device.
1544 * Ulrich Drepper has contributed new support for System V style
1545 shared memory and IPC on systems that support it.
1547 * Ulrich Drepper has contributed several miscellaneous new functions found
1548 in System V: The `hsearch' family of functions provide an effective
1549 implementation of hash tables; `a64l' and `l64a' provide a very simple
1550 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1553 * Ulrich Drepper has contributed new reentrant counterparts for the
1554 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1556 * Ulrich Drepper has contributed new, highly-optimized versions of several
1557 string functions for the i486/Pentium family of processors.
1559 * Ulrich Drepper has updated the Linux-specific code, based largely
1560 on work done in Hongjiu Lu's version of GNU libc for Linux.
1561 The GNU library now supports Linux versions 2.0.10 and later,
1562 using the ELF object file format (i[3456]86-*-linux).
1564 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1566 * David Mosberger-Tang and Richard Henderson have ported the C library
1567 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
1568 dynamic linking support for ELF/Alpha.
1570 * Richard Henderson contributed several Alpha optimized assembler function
1571 for arithmetic and string handling.
1573 * Ulrich Drepper has contributed a new set of message catalog functions to
1574 support multiple languages using the <libintl.h> interface, for use with
1575 his new package GNU gettext. Translation volunteers have contributed
1576 catalogs of the library's messages in Spanish, German, and Korean.
1578 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1579 program and the `catgets' function for reading the catalog files it
1580 creates. (The <libintl.h> interface is preferred; we include the
1581 <nl_types.h> interface using `catgets' only for source compatibility with
1582 programs already written to use it.)
1584 * New header file <values.h> gives SVID-compatible names for <limits.h>
1587 * Various new macros, declarations, and small header files for compatibility
1590 * New function `group_member' is a convenient way to check if a process has
1591 a given effective group ID.
1593 * When using GCC 2.7 and later, the socket functions are now declared in a
1594 special way so that passing an argument of type `struct sockaddr_in *',
1595 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
1596 `struct sockaddr *' type, does not generate a type-clash warning.
1598 * New function `error' declared in header file <error.h> is a convenient
1599 function for printing error messages and optionally exiting; this is the
1600 canonical function used in GNU programs. The new functions `err', `warn',
1601 and friends in header file <err.h> are the canonical 4.4 BSD interface for
1602 doing the same thing.
1604 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
1605 POSIX.2 `glob' function to do ~ and {...} expansion.
1607 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
1608 `clearenv' which is used in POSIX.9 is also available.
1610 * New function `getsid' returns session ID number on systems that support it.
1612 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
1613 files <db.h> and <mpool.h> provide a rich set of functions for several
1614 types of simple databases stored in memory and in files, and <ndbm.h> is
1615 an old `ndbm'-compatible interface using the `db' functions. Link with
1616 `-ldb' to get these functions.
1618 * New macro `strdupa' copies a string like `strdup', but uses local stack
1619 space from `alloca' instead of dynamic heap space from `malloc'.
1621 * New function `strnlen' is like `strlen' but searches only a given maximum
1622 number of characters for the null terminator. `stpncpy', `strndup' and
1623 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1626 * New function `statfs' in header <sys/statfs.h>.
1628 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1629 provide convenient functions for operating on blocks of null-terminated
1632 * A new suite of functions in <utmp.h> handle all the details of reading
1633 and writing the utmp file.
1635 * An implementation of the NIS/YP(tm) based NSS service was contributed by
1638 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
1639 completely POSIX compliant and also implemented the extended functionality
1640 to handle alternate digit representation and alternate era date formats.
1642 * Ulrich Drepper provided an implementation of the `strptime' function
1643 defined in XPG4.2 which transforms a string into a `struct tm' value.
1645 * Paul Eggert provided the tzselect shell script as part of the timezone
1646 code. The shell script makes it easy to select the correct timezone
1649 * The implementation of the malloc family of functions is completely replaced
1650 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
1651 The implementation uses the mmap function (if available) and it is
1652 optimized for the use in multi threaded programs.
1654 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
1655 functions. This new functionality is usable by specifying a special
1656 salt string and it is compatible with implementation on *BSD systems.
1658 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
1659 `getsubopt' to handle second level command line options, `bsd_signal'
1660 to access BSD style `signal' functionality, the obsolete `regexp' style
1663 * the `lchown' function is available on system which support this
1666 * The implementation of the shadow password handling function was contributed
1669 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
1671 * POSIX.1g support was added. The <sys/select.h> header is available,
1672 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
1673 implementation of `getaddrinfo'.
1677 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
1679 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
1680 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
1682 * The new function `daemon' from 4.4 BSD is useful for server programs that
1683 want to put themselves in the background.
1685 * Joel Sherrill has contributed support for several standalone boards that
1686 run without an operating system.
1688 * `printf', `scanf' and friends now accept a `q' type modifier for long
1689 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
1691 * All of the code taken from BSD (notably most of the math and networking
1692 routines) has been updated from the BSD 4.4-Lite release.
1694 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
1696 * The new functions `getdomainname' and `setdomainname' fetch or change the
1697 YP/NIS domain name. These are system calls which exist on systems which
1700 * The time zone data files have been updated for the latest international
1703 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
1704 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
1708 * The C library now includes support for Sun RPC, from Sun's free
1709 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
1710 are included. (There is still no support for YP.)
1712 * Tom Quinn has contributed a port of the C library to SGI machines running
1713 Irix 4 (mips-sgi-irix4).
1715 * The new `lockf' function is a simplified interface to the locking
1716 facilities of `fcntl', included for compatibility.
1718 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
1720 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
1722 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
1725 * The error message printed by `assert' for a failed assertion now includes
1726 the name of the program (if using GNU ld) and the name of the calling
1727 function (with versions of GCC that support this).
1729 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
1731 * The library now includes the <sys/mman.h> header file and memory
1732 management functions `mmap', `munmap', `mprotect', `msync', and
1733 `madvise', on systems that support those facilities.
1735 * The interface for `mcheck' has changed slightly: the function called to
1736 abort the program when an allocation inconsistency is detected now takes
1737 an argument that indicates the type of failure. The new function
1738 `mprobe' lets you request a consistency check for a particular block at
1739 any time (checks are normally done only when you call `free' or `realloc'
1742 * It is now possible to easily cross-compile the C library, building on one
1743 system a library to run on another machine and/or operating system. All
1744 you need to do is set the variable `HOST_CC' in `configparms' to the
1745 native compiler for programs to run on the machine you are building on (a
1746 few generator programs are used on Unix systems); set `CC' to the
1749 * The new function `fexecve' (only implemented on the GNU system) executes
1750 a program file given a file descriptor already open on the file.
1754 * Brendan Kehoe has contributed most of a port to the DEC Alpha
1755 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
1757 * You can set the variable `libprefix' in `configparms' to specify a prefix
1758 to be prepended to installed library files; this makes it easy to install
1759 the GNU C library to be linked as `-lgnuc' or whatever.
1761 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
1762 copies a limited number of characters from a string, and returns the
1763 address of the last character written.
1765 * You no longer need to check for whether the installed `stddef.h' is
1766 compatible with the GNU C library. configure now checks for you.
1768 * You can now define a per-stream `fileno' function to convert the
1769 stream's cookie into an integral file descriptor.
1771 * ``malloc (0)'' no longer returns a null pointer. Instead, it
1772 allocates zero bytes of storage, and returns a unique pointer which
1773 you can pass to `realloc' or `free'. The behavior is undefined if
1774 you dereference this pointer.
1776 * The C library now runs on Sony NEWS m68k machines running either
1777 NewsOS 3 or NewsOS 4.
1779 * The new `syscall' function is a system-dependent primitive function
1780 for invoking system calls. It has the canonical behavior on Unix
1781 systems, including unreliable return values for some calls (such as
1782 `pipe', `fork' and `getppid').
1784 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
1785 to `EAGAIN', which is the preferred name. On systems whose kernels
1786 use two distinct codes, the C library now translates EWOULDBLOCK to
1787 EAGAIN in every system call function.
1791 * The GNU C Library Reference Manual is now distributed with the library.
1792 `make dvi' will produce a DVI file of the printed manual.
1793 `make info' will produce Info files that you can read on line using C-h i
1794 in Emacs or the `info' program.
1795 Please send comments on the manual to bug-glibc-manual@gnu.org.
1797 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
1799 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
1801 * Jason Merrill has contributed a port to the Sequent Symmetry running
1802 Dynix version 3 (i386-sequent-dynix).
1804 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
1805 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
1807 * New function `memory_warnings' lets you arrange to get warnings when
1808 malloc is running out of memory to allocate, like Emacs gives you.
1810 * The C library now contains the relocating allocator used in Emacs 19 for
1811 its editing buffers. This allocator (ralloc) minimizes allocation
1812 overhead and fragmentation by moving allocated regions around whenever it
1813 needs to. You always refer to a ralloc'd region with a "handle" (a
1814 pointer to a pointer--an object of type `void **').
1816 * There is a new `printf' format: `%m' gives you the string corresponding
1817 to the error code in `errno'.
1819 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
1820 or `%[' conversion, but instead of filling in a fixed-sized buffer you
1821 pass, the `a' modifier says to fill in a `char **' you pass with a
1824 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
1825 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
1826 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
1828 * `mkstemp' is a traditional Unix function to atomically create and open a
1829 uniquely-named temporary file.
1833 * The standard location for the file that says what the local timezone is
1834 has changed again. It is now `/usr/local/etc/localtime' (or more
1835 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
1837 * The distribution no longer contains any files with names longer than 14
1840 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
1841 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
1843 * New functions `ttyslot' and `syslog' from 4.4 BSD.
1847 * The configuration process has changed quite a bit. The `configure'
1848 script is now used just like the configuration scripts for other GNU
1849 packages. The `sysdeps' directory hierarchy is much rearranged.
1850 The file `INSTALL' explains the new scheme in detail.
1852 * The header files no longer need to be processed into ANSI C and
1853 traditional C versions. There is just one set of files to install, and
1854 it will work with ANSI or old C compilers (including `gcc -traditional').
1856 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
1857 MIPS DECStation running Ultrix 4.
1859 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
1860 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
1861 made itself into a shared library.
1863 * Yet further improved support for the i386, running 4.3 BSD-like systems
1864 (such as Mach 3 with the Unix single-server), or System V.
1866 * New function `strncasecmp' to do case-insensitive string comparison
1867 with limited length.
1869 * New function `strsep' is a reentrant alternative to `strtok'.
1871 * New functions `scandir' and `alphasort' for searching directories.
1873 * New function `setenv' is a better interface to `putenv'.
1875 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
1876 function for traversing a directory tree.
1878 * The GNU obstack package is now also part of the C library.
1879 The new function `open_obstack_stream' creates a stdio stream that
1880 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
1881 formatted output directly to an obstack.
1883 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
1884 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
1886 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
1888 * The new functions `strfry' and `memfrob' do mysterious and wonderful
1889 things to your strings.
1891 * There are some new test programs: test-fseek, testmb, and testrand.
1893 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
1894 These ports are not finished, but are a good starting place for really
1895 supporting those systems.
1897 * `/etc/localtime' is now the standard location for the file that says what
1898 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
1899 This follows the general principle that `/etc' is the place for all local
1900 configuration files.
1902 * The C library header files now use `extern "C"' when used by the C++
1903 compiler, so the C library should now work with C++ code.
1905 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
1906 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
1909 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
1910 function which uses the `merge sort' algorithm, and is said to be
1911 significantly faster than the old GNU `qsort' function. Merge sort is
1912 now the standard `qsort' function. The new algorithm can require a lot
1913 of temporary storage; so, the old sorting function is called when the
1914 required storage is not available.
1916 * The C library now includes Michael Glad's Ultra Fast Crypt, which
1917 provides the Unix `crypt' function, plus some other entry points.
1919 * The code and header files taken from 4.4 BSD have been updated with the
1920 latest files released from Berkeley.
1922 ----------------------------------------------------------------------
1923 Copyright information:
1925 Copyright (C) 1992-1999,2000,2001,2002,2003,2004,2005,2006
1926 Free Software Foundation, Inc.
1928 Permission is granted to anyone to make or distribute verbatim copies
1929 of this document as received, in any medium, provided that the
1930 copyright notice and this permission notice are preserved,
1931 thus giving the recipient permission to redistribute in turn.
1933 Permission is granted to distribute modified versions
1934 of this document, or of portions of it,
1935 under the above conditions, provided also that they
1936 carry prominent notices stating who last changed them.
1939 version-control: never