1 GNU C Library NEWS -- history of user-visible changes. 2011-5-2
2 Copyright (C) 1992-2009, 2010, 2011 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 RPC implementation in libc is obsoleted. Old programs keep working
11 but new programs cannot be linked with the routines in libc anymore.
12 Programs in need of RPC functionality must be linked against TI-RPC.
13 The TI-RPC implemtation is IPv6 enabled and there are other benefits.
14 Implemented by Ulrich Drepper.
16 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
19 * The following bugs are resolved with this release:
21 11724, 12420, 12445, 12454, 12460, 12469, 12489, 12509, 12510, 12518, 12583,
22 12587, 12597, 12631, 12650, 12653, 12655, 12685, 12714, 12717, 12723
26 * The following bugs are resolved with this release:
28 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11611, 11640,
29 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979, 12005,
30 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113, 12140,
31 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348, 12378,
34 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
36 * POWER7 optimizations: memset, memcmp, strncmp
38 * New optimized string functions for x86-64: strnlen (SSE2),
39 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
40 Implemented by Ulrich Drepper.
44 * The following bugs are resolved with this release:
46 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915, 10918,
47 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001, 11007,
48 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070, 11093,
49 11115, 11120, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
50 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
51 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
52 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
53 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
55 * New interfaces: pthread_getname_np, pthread_setname_np
57 * New Linux interface: recvmmsg
59 * STT_GNU_IFUNC implemented for Sparc by David Miller.
61 * The dynamic linker now recognizes supported ABI versions from the
62 EI_ABIVERSION field in the ELF header.
63 Implemented by Ulrich Drepper.
65 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
66 will not be used to fill in password fields in the passwd.byname replies.
67 Instead it is used to synthesize the shadow.byname table, should it be
68 missing. This is a useful mode in some installations involving Solaris.
69 Implemented by Ulrich Drepper.
71 * New locales: kok_IN, sq_MK, cv_RU
75 * The following bugs are resolved with this release:
77 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
78 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
79 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
80 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
81 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
82 10789, 10817, 10823, 10840, 10847
84 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
86 Implemented by Ulrich Drepper.
88 * Checking version of longjmp added that fails if an uninitialized stack
89 frame would be created. Implemented by Ulrich Drepper.
91 * STT_GNU_IFUNC is now supported in static executables.
92 Implemented by H.J. Lu.
94 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
96 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
97 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
98 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
99 Contributed by H.J. Lu.
101 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
102 Implemented by Ulrich Drepper.
104 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
106 Contributed by H.J. Lu.
108 * Support for fma instruction in AVX on x86-64.
109 Implemented by H.J. Lu and Ulrich Drepper.
111 * AVX support in x86-64 auditing support in ld.so.
112 Implemented by H.J. Lu.
114 * STB_GNU_UNIQUE support added.
115 Implemented by Ulrich Drepper.
117 * Implement second fallback mode for optimized DNS lookup for even more
118 broken environments. If two requests from the same port are not
119 handled correctly close the socket and open a new one before sending
120 the second request. The 'single-request-reopen' option in /etc/resolv.conf
121 can be used to select this mode right away, instead of rediscovering the
122 necessity is every process again.
123 Implemented by Ulrich Drepper.
125 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
126 Implemented by Adam Tkac.
128 * Optimized iconv conversions for S390x.
129 Implemented by Andreas Krebbel.
131 * Using condvars with PI mutexes is now more efficient due to kernel
132 support for requeueing to PI futexes. NPTL support added for x86-64.
133 Implemented by Ulrich Drepper.
135 * New locales: ps_AF, my_MM
139 * The following bugs are resolved with this release:
141 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
142 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
143 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
144 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
145 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
147 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
148 Implemented by Ulrich Drepper.
150 * New Linux interfaces: accept4, fallocate, fallocate64.
151 Implemented by Ulrich Drepper.
153 * Correct declarations of string function when used in C++ code. This
154 could lead to compile errors for invalid C++ code.
156 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
159 * New POSIX 2008 interface: psiginfo
160 Implemented by Ulrich Drepper.
162 * New ISO C++1x interfaces: quick_exit, at_quick_exit
163 Implemented by Ulrich Drepper.
165 * Support for selecting between multiple function definitions at runtime
166 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
168 * The libcrypt library can now use the hash function implementations in
169 NSS. Implemented by Ulrich Drepper.
171 * The malloc implementation can be compiled to be less memory efficient
172 but higher performing in multi-threaded programs.
173 Implemented by Ulrich Drepper.
175 * New locales: nan_TW@latin, ks_IN
177 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
178 Implemented by Ulrich Drepper.
180 * Extended printf hook support. It is possible to use user-defined types
181 and extend existing format specifiers.
182 Implemented by Ulrich Drepper.
184 * Handling for group shadow files has been added.
185 Implemented by Ulrich Drepper.
187 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
188 servers (the case, e.g., for some people using the built-in DNS
189 server in ADSL modems/routers). There is a once-per-process timeout
190 in case of a broken server. To avoid it, users can run nscd or put
191 'options single-request' in /etc/resolv.conf.
192 Implemented by Ulrich Drepper.
196 * The following bugs are resolved with this release:
198 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
199 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
200 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
201 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
202 6968, 6974, 6980, 6995, 7008, 7009, 7029
204 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
205 up at the same time. Implemented by Ulrich Drepper.
207 * TLS descriptors for LD and GD on x86 and x86-64.
208 Implemented by Alexandre Oliva.
210 * getaddrinfo now handles DCCP and UDPlite.
211 Implemented by Ulrich Drepper.
213 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
214 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
215 Implemented by Ulrich Drepper.
217 * New implementation of memmem, strstr, and strcasestr which is O(n).
218 Implemented by Eric Blake.
220 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
222 * Implement "e" option for popen to open file descriptor with the
223 close-on-exec flag set. Implemented by Ulrich Drepper.
225 * Implement "b" mode for fmemopen. In this mode writes writes don't
226 implicitly add a NUL byte and seeks from the end of the buffer really
227 use the buffer end, not the string length as the basis.
228 Implemented by Ulrich Drepper.
230 * Many functions, exported and internal, now atomically set the close-on-exec
231 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
233 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
235 Implemented by Pravin Satpute.
237 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
241 * The following bugs are resolved with this release:
243 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
244 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
245 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
246 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
247 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
248 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
249 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
251 * New locales: bo_CN, bo_IN, shs_CA.
253 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
255 * Sorting rules for some Indian languages (Devanagari and Gujarati).
256 Implemented by Pravin Satpute.
258 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
260 * nscd caches now all timeouts for DNS entries
261 Implemented by Ulrich Drepper.
263 * nscd is more efficient and wakes up less often.
264 Implemented by Ulrich Drepper.
266 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
267 vdprintf, and obstack_vprintf.
268 Implemented by Jakub Jelinek.
270 * Faster memset for x86-64.
271 Implemented by Harsha Jagasia and H.J. Lu.
273 * Faster memcpy on x86.
274 Implemented by Ulrich Drepper.
276 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
277 Implemented by Ulrich Drepper.
279 * Faster sqrt and sqrtf implemention for some PPC variants.
280 Implemented by Stephen Munroe.
284 * The following bugs are resolved with this release:
286 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
287 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
288 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
289 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
290 5071, 5103, 5104, 5112, 5113, 5184, 5186
292 * More checking functions: fread, fread_unlocked, open*, mq_open.
293 Implemented by Jakub Jelinek and Ulrich Drepper.
295 * Extend fortification to C++. Implemented by Jakub Jelinek.
297 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
298 by not recognizing 'a' as a modifier when those specs are requested.
299 Implemented by Jakub Jelinek.
301 * PPC optimizations to math and string functions.
302 Implemented by Steven Munroe.
304 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
305 options to be passed. Implemented by Ulrich Drepper.
307 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
309 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
310 Implemented by Ulrich Drepper.
312 * Handle private futexes in the NPTL implementation.
313 Implemented by Jakub Jelinek and Ulrich Drepper.
315 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
316 Implemented by Roland McGrath and Ulrich Drepper.
318 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
320 * SHA-256 and SHA-512 based password encryption.
321 Implemented by Ulrich Drepper.
323 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
324 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
327 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
328 Implemented by Ulrich Drepper.
332 * The following bugs are resolved with this release:
334 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
335 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
336 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
337 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
338 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
339 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
340 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
343 * New Linux interfaces: epoll_pwait, sched_getcpu.
345 * New generic interfaces: strerror_l.
347 * nscd can now cache the services database. Implemented by Ulrich Drepper.
351 * The following bugs are resolved with this release:
353 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
354 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
355 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
356 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
357 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
358 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
359 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
360 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
361 3225, 3251, 3252, 3253, 3273
363 * For Linux, the sorting of addresses returned by getaddrinfo now also
364 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
365 Implemented by Ulrich Drepper.
367 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
368 Implemented by Ulrich Drepper.
370 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
372 * New iconv module for MIK. Contributed by Alexander Shopov.
374 * For sites with broken group and/or passwd database, the auto-propagate
375 option of nscd can prevent creating ID lookup entries from the results
376 of a name lookup and vice versa. This usually is no problem but some
377 site might have problems with the default behavior.
378 Implemented by Ulrich Drepper.
380 * Iterating over entire database in NIS can be slow. With the
381 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
382 to trade time for memory. The entire database will be read at once.
383 Implemented by Ulrich Drepper.
385 * The interfaces introduced in RFC 3542 have been implemented by
388 * Support for the new ELF hash table format was added by Ulrich Drepper.
390 * Support for priority inheritance mutexes added by Jakub Jelinek and
393 * Support for priority protected mutexes added by Jakub Jelinek.
395 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
396 or_IN, csb_PL, fy_NL, sr_ME.
400 * More overflow detection functions.
402 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
403 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
405 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
406 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
407 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
408 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
409 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
410 by Masahide Washizawa.
412 * It is now possible to install audit libraries for the dynamic linker using
413 LD_AUDIT. Implemented by Ulrich Drepper.
415 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
416 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
417 For a libc and libpthread that works well on Linux 2.4 kernels, we
418 recommend using the stable 2.3 branch.
420 * The new function open_wmemstream acts like open_memstream,
421 but uses a wchar_t wide character buffer.
423 * The new function ppoll is an improved version of poll, similar to pselect.
425 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
426 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
427 renameat, unlinkat, linkat, symlinkat, readlinkat.
429 * New Linux kernel system calls: unshare,
430 inotify_init, inotify_add_watch, inotify_rm_watch.
432 * The euidaccess function is now also known by the alias eaccess,
433 for compatibility with some other systems.
435 * Timezone data updated to 2006b version.
439 * The following bugs are resolved with this release:
441 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
442 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
443 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
444 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
445 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
446 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
448 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
450 * As of this release, GCC 4 can be used to compile the C Library.
452 * Timezone data updated to 2005m version.
456 * The following bugs are resolved with this release:
458 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
459 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
460 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
461 777, 787, 821, 822, 823, 825
463 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
467 * Support for RFC 3678. Real implementations exist only for Linux so far.
468 Implemented by Ulrich Drepper.
470 * nscd can now cache entries persistently. Expiring entries are reloaded.
471 For speedups the cache can be shared in memory with client processes.
472 Implemented by Ulrich Drepper.
474 * nscd can now perform SELinux checks.
475 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
477 * getaddrinfo queries are now cached. Canonical name lookup is performed
479 Implemented by Ulrich Drepper.
481 * The nothrow function attribute is used when headers are used by gcc when
482 compiling C code. This can avoid significant amounts of exception
485 * The malloc functions perform more error checking and are stricter when
486 it comes to reacting on errors. The default action is to terminate
487 the process after showing an error message. Implemented by Ulrich Drepper.
489 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
490 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
492 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
493 namespaces using the new function dlmopen(). This feature is of course,
494 like most other dynamic loading functionality, not available in statically
495 linked applications. Implemented by Ulrich Drepper.
497 * Low-overhead boundary checking variants of string and some stdio functions
498 were added. These are to be used in conjunction with a gcc patch by
499 Jakub Jelinek which adds calls to these functions if possible.
500 Implemented by Jakub Jelinek and Ulrich Drepper.
502 * Old code for several operating systems and machine architectures that
503 have not been in working condition in a long time have been removed from
504 the main source tree maintained by the GNU C Library's maintainers.
505 These files are now reside in the separate `ports' source module
506 that is usable as an add-on when building the library.
510 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
511 interrogate the dynamic linker, compatible with the Solaris interface.
513 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
514 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
516 * getifaddrs now uses the netlink interface on Linux to get its information.
517 Implemented by Thorsten Kukuk.
519 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
520 Implemented by Ulrich Drepper.
522 * support for non-executable stacks on x86 has been added. Changes mostly
525 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
528 * getaddrinfo now performs destination address selection according to
533 * Thread-safe interfaces for many functions that access locale data
534 were added in version 2.3, but these features were omitted from NEWS.
535 Many functions have variants with an `_l' suffix that take a `locale_t'
536 object as a parameter rather than consulting the current locale.
537 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
538 create and maintain `locale_t' objects. Additionally, the new function
539 `uselocale' sets "the current locale" (as used by functions not so
540 parameterized) set for an individual thread. These features were added
541 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
543 * The functions getresuid, getresgid, setresuid, and setresgid, which
544 have long been available on Linux, are now declared in <unistd.h>
545 and are now also available on the Hurd.
547 * ELF thread-local storage support (TLS) now works on x86-64.
549 * The new dynamic string token $LIB is expanded in shared library names.
550 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
552 * Aldy Hernandez contributed complete software floating point support for
553 PowerPC machines with no FPU.
555 * fexecve is implemented on Linux.
557 * The `btowc' function should work at least twice as fast due to
558 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
560 * With approriate thread add-ons cancelable functions are now implemented
561 in libc.so as well. No need to call the function in libpthread. This
562 change allowed to finally disable the incorrect and expensive handling
563 of weak definition in ld.so.
565 * Yet more PLT entries in libc.so have been removed. We finally arrived
566 at the bare minimum. Startup times improved appropriately.
568 * Support for the new Linux/x86 system call interface was added. The
569 AT_SYSINFO auxiliary vector entry is recognized and handled.
573 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
576 * iconv (the program and the interface) now accepts empty names (excluding
577 options like //TRANSLIT) to mean "use charset of current locale".
579 * localedef can now transliterate characters in strings which are not in
580 the provided charmap. The information from the input locale is used.
582 * Prelinking support was added for ELF targets. This requires additional
583 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
585 * Read-only stdio streams now use mmap to speed up operation by eliminating
586 copying and buffer underflows. To use add 'm' to the mode string of
587 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
589 * The malloc functions were completely rewritten by Wolfram Gloger based
590 on Doug Lea's malloc-2.7.0.c.
592 * Isamu Hasegawa contributed a completely new and POSIX-conformant
593 implementation of regex.
595 * Bruno Haible upgraded the iconv and locale implementation to support
598 * Contents of the LC_* and LANG environment variables in the CEN style are
599 not recognized anymore. It never was used. Change by Ulrich Drepper.
601 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
602 thread-local storage (TLS) ABI on some platforms.
603 Changes by Ulrich Drepper. SH support by Kaz Kojima.
605 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
606 EUC-JISX0213, and TSCII.
608 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
609 BSD-compatible interface for getting all network interface addresses.
610 Implementation for IPv4 by Roland McGrath.
612 * Loading of locale data is faster due to the introduction of a locale
613 archive. Implemented by Roland McGrath and Ulrich Drepper.
615 * Startup times are significantly reduced by not using exported functions
616 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
619 * Steven Munroe contributed a port to PowerPC64/Linux.
623 * The Hurd now uses the GNU libio implementation of stdio rather than the
624 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
626 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
627 with the same behavior as the Linux system call of the same name.
631 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
632 128-bit long double format.
634 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
635 IBM1161, and IBM1162 charsets.
637 * Andreas Jaeger contributed a port to x86-64/Linux.
639 * Peter Bruin contributed a port to PowerPC/Hurd.
641 * libc functions using I/O streams now can handle wide-oriented streams
644 * optimizations in the dynamic linker. Binaries created by recent binutils
645 versions start up quicker due to reduced time spent on relocations.
647 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
651 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
652 asinh, atanh, j0 for the 128-bit long double format.
654 * Bruno Haible updated all the code handling Unicode in some form to
657 * Speed of regex for single-byte locales is back to previous levels.
658 Patch by Isamu Hasegawa.
660 * Alpha, SPARC, and IA-64 now also using floating stacks.
662 * Startup time of internationalized applications greatly improved through
663 iconv cache. Use iconvconfig to generate the cache file.
664 Contributed by Ulrich Drepper.
666 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
667 severe performance problems. Patch by David Mosberger.
669 * The Hurd port got a lot more functionality like AIO, various stdio
670 extensions, etc. Mainly done by Roland McGrath.
672 * mtrace can now lookup symbols in shared libraries.
676 * Intel's IA-64 math library is largely integrated. It provides fast and
677 accurate implementatations for most basic and standard math functions
678 in float, double, and long double format.
680 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
681 and asin for the 96-bit long double format and asin, log, tan for the
682 128-bit long double format.
684 * The beginning of a last-bit accurate math library by IBM Haifa were added.
685 The basic double functions exist today. Contributed by Abraham Ziv
686 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
687 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
689 * An asynchronous name lookup library was added. The interface is designed
690 after POSIX AIO. The proposal was circulated beforehand to get comments.
691 No negative ones came in. Implemented by Ulrich Drepper.
693 * Port to S390/64bit contributed by Martin Schwidefsky
694 <schwidefsky@de.ibm.com>.
696 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
697 of functions for Linux/IA-64.
699 * The RPC code is now thread safe. Threads can now use the same service
700 of different services at the same time. Patch by Eric Norum
701 <eric.norum@usask.ca> with some help by Ulrich Drepper.
703 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
704 family of functions for Linux/S390.
706 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
707 of functions for Linux/x86.
709 * Port to Linux/CRIS contributed by Axis Communications.
713 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
714 we can now check for namespace violations and missing declarations. The
715 result is that almost all headers are now Unix-compliant (as defined in
716 the upcoming XPG6). The negative side is that some programs might need
717 corrections, too, if they depend on the incorrect form of the headers in
718 previous versions which defined too many symbols and included too many
721 * regex now handles multibyte character sets correctly.
722 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
724 * iconv (the program) does now conform to the upcoming XPG6 and handles
725 charmaps. Instead of the charset names the path of charmaps can be
726 provided and the conversion happens based on this data.
727 Contributed by Ulrich Drepper.
729 * The locale program now provides detailed information about the installed
734 only lists the names of the supported locales
738 provides details such as country, language, and codeset name.
739 Contributed by Ulrich Drepper.
743 * The gencat program now parses the input file according to the charset
744 selected by the LC_CTYPE category. This is important for stateful
745 character sets. To make generating catalogs easier there is a way
746 to overwrite the charset selected by the locale: before the first
747 message or $ quote line the catalog can contain a line like
751 to select the charset (ISO-8859-2 in this case).
753 Implemented by Shinya Hanataka and Ulrich Drepper.
755 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
756 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
757 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
759 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
760 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
762 * The LANGUAGE environment variable is now ignored unless the locale is
763 changed from the default "C" locale.
765 * The usual bug fixes.
769 * Greg McGary added runtime support for bounds checking using gcc's
770 new -fbounded-pointers option. ix86 target is complete. PowerPC
773 * Thorsten Kukuk added secure mode support to nscd.
775 * The Berkeley db libraries have been removed.
777 Related, the nss_db module is now in a separate package since it
778 obviously requires a database library being available.
780 * Wide character I/O streams implemented by Ulrich Drepper.
782 * Functions from the extended socket API added by Ulrich Drepper.
784 * Functions feenableexcept and fedisableexcept to control the
785 behaviour of individual exceptions have been added by Andreas Jaeger.
787 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
789 * The resolver code has been updated from bind 8.2.3-T5B which supports
790 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
793 This change could in some situations effect backward compatibility. Since
794 now `_res' is a thread-local instead of a global variable, modifying it
795 in one thread does not have any effect in other threads.
797 The resolver library was also extended to allow IPv6 as the transport
798 protocol for the requests. This work was done by Stig Venaas.
800 * Compatibility code for K&R C compilers has been removed from the
801 header files. A ISO C compiler is needed to use the library
802 (conforming to either C89 or C99 standard).
804 * Complete rewrite of the localedef program to support multibyte character
805 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
806 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
807 Implemented by Ulrich Drepper.
809 Bruno Haible significantly improved the generation and use of the data
810 structures for the wide character tables.
812 * Plural handling in gettext implemented by Ulrich Drepper.
814 * The utmp daemon has been removed.
816 * The port to MIPS-Linux has been finished by Andreas Jaeger.
818 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
821 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
823 * POSIX barriers implemented by Kaz Kylheku.
825 * POSIX spawn function family implemented by Ulrich Drepper.
827 * POSIX spinlocks are now available.
829 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
831 * the configure option --enable-kernel=X.Y.Z allows to strip out
832 compatibility for kernel versions before X.Y.Z. This is currently only
833 implemented for Linux.
835 * the sockaddr_in6 structure changed. The IPv6 working group added a new
836 field sin6_scope_id. This means that all programs using IPv6 should be
837 recompiled. Don't expect binary compatibility with previous glibc
840 * various conversion modules for IBM character sets contributed by
843 * IA-64 port by Jes Sorensen and HJ Lu.
845 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
846 Compiling the GNU C Library for Linux/ia64
847 ******************************************
849 Please refer to the file INSTALL in the same directory as you found
850 this file for general information about configuring and compiling
853 For general inquiries about glibc under Linux/ia64 please use the
854 following mailing list linux-ia64@linuxia64.org or one of the relevant
857 Recommended Tools for Compilation
858 =================================
860 In order for glibc-2.2 to build correctly on the ia64 you need at
861 least the following versions of the GNU tools (the :
863 * The Cygnus toolchain snapshot for the ia64 as of August 4
864 including the provided set of patches. It is however recommend
865 you use the October 24 toolchain snapshot or a more recent version.
867 OR alternatively you can try the following (the Cygnus toolchain is
868 the recommended solution):
870 * GCC and binutils, GAS and GNU LD out of CVS from
871 sources.redhat.com as of August 28, 2000 or later. The CVS tree
872 may require special patches to work properly on the ia64.
874 Configuring and compiling GNU Libc for Linux/ia64
875 =================================================
877 The library requires Linux kernel version 2.4.0-test4-000728 or
878 later to funtion properly. Besides that it support for debug libraries
879 is currently untested. Hence the following options
880 are required for configuring the library:
882 --disable-debug --enable-kernel=2.4.0
884 It is also important that you make sure the library picks up the
885 appropriate kernel header files, if you do not have recent enough
886 kernel headers in /usr/src/linux/include, you should use the
887 --with-headers=<path> option to specify the location.
889 As an example I personally use the following options to configure
894 --enable-kernel=2.4.0
898 --with-headers=/home/jes/linux/include
903 Jes Sorensen <jes@linuxcare.com>,
905 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
919 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
921 * New xdr functions are added; some rpc functions are now 64bit clean.
923 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
925 * Fixed known incompatibilities with glibc 2.0.
927 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
929 * Optimized a number of functions (especially the ELF dynamic loader).
931 * Update timezone data files.
933 * lots of charmaps corrections
935 * some new locale definitions and charmaps
940 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
941 conform to POSIX member type requirements. Symbol versions have been
942 adjusted as needed within the library, and for direct use by applications,
943 but there is potential for problems if third-party libraries use
944 struct timeval as part of their interface. This does not present
945 a problem for X and other "essential" system libraries.
947 * An additional locale model to support C++ Standard Library locale
948 model and probably more was implemented by Ulrich Drepper.
950 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
953 * Miles Bader provided the `argp' function family to support hierachical
954 command line argument parsing, layered on top of getopt.
956 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
958 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
961 * scanf recognizes the %a and %A format for scanning floating point numbers.
963 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
964 information and interfaces for the available integer types.
966 * about 130 new math functions were added to implement the ISO C9x math
969 * the new header <complex.h> contains definitions of the complex math
970 functions from ISO C 9X.
972 * the new header <tgmath.h> defines generic macros to use complex or
973 real valued functions.
975 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
977 * Andreas Jaeger provided a test suite for the math library.
979 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
981 * Ulrich Drepper added character set conversion functions (iconv).
983 * Optimized string functions have been added.
985 * The localedata addon is now part of glibc.
987 * An implementation of profiling shared libraries was added by Ulrich Drepper.
989 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
990 daemon for NSS (nscd).
992 Missing a better place here are some numbers on improvements. Under
993 Linux 2.1.125 un-tar-ing the kernel sources takes
997 using local files 12.19s 6.88s 22.91s
999 using NIS 13.92s 8.91s 26.34s
1001 using NIS & nscd 10.37s 7.34s 25.30s
1003 using NIS+ 27.57s 30.37s 640.46s
1005 using NIS+ & nscd 10.25s 7.83s 26.51s
1007 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1009 Keep in mind that non-namelookup related operations dominate above times.
1010 It was just a common complain that using NIS+ unpacking the kernel is
1013 [1] The old nscd implementation is not available anymore since it was
1014 distributed with glibc up to version 2.0.98 and thus is now replaced.
1016 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1018 * Mark Kettenis provided a Hesiod NSS module.
1020 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1021 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1023 * rcmd can now handle netgroups (Dick Streefland).
1025 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1028 * Support for the IPv6 protocol has been added to the socket API, as per the
1029 latest draft standards.
1031 * Support for Linux 2.2 has been added.
1033 * Interface changes relative to the latest 2.0.x release:
1034 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1035 addseverity NEW: Unix98
1036 alphasort64 NEW: LFS
1037 argp_err_exit_status NEW: argp, GNU ext
1038 argp_error NEW: argp, GNU ext
1039 argp_failure NEW: argp, GNU ext
1040 argp_help NEW: argp, GNU ext
1041 argp_parse NEW: argp, GNU ext
1042 argp_program_bug_address NEW: argp, GNU ext
1043 argp_program_version NEW: argp, GNU ext
1044 argp_program_version_hook NEW: argp, GNU ext
1045 argp_state_help NEW: argp, GNU ext
1046 argp_usage NEW: argp, GNU ext
1047 authdes_create NEW: Secure RPC
1048 authdes_getucred NEW: Secure RPC
1049 authdes_pk_create NEW: Secure RPC
1050 backtrace NEW: GNU ext.
1051 backtrace_symbols NEW: GNU ext.
1052 backtrace_symbols_fd NEW: GNU ext.
1054 cacosf NEW: ISO C 9x
1055 cacosh NEW: ISO C 9x
1056 cacoshf NEW: ISO C 9x
1057 cacoshl NEW: ISO C 9x
1058 cacosl NEW: ISO C 9x
1065 casinf NEW: ISO C 9x
1066 casinh NEW: ISO C 9x
1067 casinhf NEW: ISO C 9x
1068 casinhl NEW: ISO C 9x
1069 casinl NEW: ISO C 9x
1071 catanf NEW: ISO C 9x
1072 catanh NEW: ISO C 9x
1073 catanhf NEW: ISO C 9x
1074 catanhl NEW: ISO C 9x
1075 catanl NEW: ISO C 9x
1076 cbc_crypt NEW: Secure RPC
1080 ccoshf NEW: ISO C 9x
1081 ccoshl NEW: ISO C 9x
1087 cimagf NEW: ISO C 9x
1088 cimagl NEW: ISO C 9x
1089 clearerr_locked REMOVED
1090 clntunix_create NEW: sunrpc ext
1092 clog10 NEW: ISO C 9x
1093 clog10f NEW: ISO C 9x
1094 clog10l NEW: ISO C 9x
1104 cprojf NEW: ISO C 9x
1105 cprojl NEW: ISO C 9x
1107 crealf NEW: ISO C 9x
1108 creall NEW: ISO C 9x
1113 csinhf NEW: ISO C 9x
1114 csinhl NEW: ISO C 9x
1117 csqrtf NEW: ISO C 9x
1118 csqrtl NEW: ISO C 9x
1122 ctanhf NEW: ISO C 9x
1123 ctanhl NEW: ISO C 9x
1125 des_setparity NEW: Secure RPC
1126 ecb_crypt NEW: Secure RPC
1127 endutxent NEW: Unix98
1129 exp10f NEW: ISO C 9x
1130 exp10l NEW: ISO C 9x
1134 fattach NEW: STREAMS
1135 fdetach NEW: STREAMS
1139 feclearexcept NEW: ISO C 9x
1140 fegetenv NEW: ISO C 9x
1141 fegetexceptflag NEW: ISO C 9x
1142 fegetround NEW: ISO C 9x
1143 feholdexcept NEW: ISO C 9x
1145 feraiseexcept NEW: ISO C 9x
1146 ferror_locked REMOVED
1147 fesetenv NEW: ISO C 9x
1148 fesetexceptflag NEW: ISO C 9x
1149 fesetround NEW: ISO C 9x
1150 fetestexcept NEW: ISO C 9x
1151 feupdateenv NEW: ISO C 9x
1152 fflush_locked REMOVED
1156 fgets_unlocked NEW: GNU ext.
1157 fileno_locked REMOVED
1169 fputc_locked REMOVED
1170 fputs_unlocked NEW: GNU ext.
1171 fread_unlocked NEW: GNU ext.
1176 fstatvfs NEW: Unix98
1180 ftruncate64 NEW: LFS
1182 fwrite_unlocked NEW: GNU ext.
1183 gai_strerror NEW: IPv6
1187 getchar_locked REMOVED
1189 getdate_err NEW: Unix98
1190 getdate_r NEW: GNU ext.
1192 getnameinfo NEW: IPv6
1193 getnetname NEW: Secure RPC
1194 getpmsg NEW: STREAMS
1195 getpt NEW: Unix98 PTY
1196 getrlimit64 NEW: LFS
1197 getutxent NEW: Unix98
1198 getutxid NEW: Unix98
1199 getutxline NEW: Unix98
1200 glob64 NEW: GNU ext.
1201 globfree64 NEW: GNU ext.
1202 gnu_get_libc_release NEW: GNU ext.
1203 gnu_get_libc_version NEW: GNU ext.
1204 grantpt NEW: Unix98 PTY
1205 host2netname NEW: Secure RPC
1207 iconv_close NEW: iconv
1208 iconv_open NEW: iconv
1209 if_freenameindex NEW: IPv6
1210 if_indextoname NEW: IPv6
1211 if_nameindex NEW: IPv6
1212 if_nametoindex NEW: IPv6
1213 in6addr_any NEW: IPv6
1214 in6addr_loopback NEW: IPv6
1215 inet6_isipv4mapped NEW: IPv6
1216 isastream NEW: STREAMS
1217 iswblank NEW: GNU ext.
1218 key_decryptsession NEW: Secure RPC
1219 key_decryptsession_pk NEW: Secure RPC
1220 key_encryptsession NEW: Secure RPC
1221 key_encryptsession_pk NEW: Secure RPC
1222 key_gendes NEW: Secure RPC
1223 key_get_conv NEW: Secure RPC
1224 key_secretkey_is_set NEW: Secure RPC
1225 key_setnet NEW: Secure RPC
1226 key_setsecret NEW: Secure RPC
1227 llrint NEW: ISO C 9x
1228 llrintf NEW: ISO C 9x
1229 llrintl NEW: ISO C 9x
1230 llround NEW: ISO C 9x
1231 llroundf NEW: ISO C 9x
1232 llroundl NEW: ISO C 9x
1237 lrintf NEW: ISO C 9x
1238 lrintl NEW: ISO C 9x
1239 lround NEW: ISO C 9x
1240 lroundf NEW: ISO C 9x
1241 lroundl NEW: ISO C 9x
1243 makecontext NEW: Unix98
1244 mempcpy NEW: GNU ext.
1247 modify_ldt NEW: kernel
1251 nearbyint NEW: ISO C 9x
1252 nearbyintf NEW: ISO C 9x
1253 nearbyintl NEW: ISO C 9x
1254 netname2host NEW: Secure RPC
1255 netname2user NEW: Secure RPC
1256 nexttoward NEW: ISO C 9x
1257 nexttowardf NEW: ISO C 9x
1258 nexttowardl NEW: ISO C 9x
1262 passwd2des NEW: Secure RPC
1264 pow10f NEW: GNU ext.
1265 pow10l NEW: GNU ext.
1268 printf_size NEW: GNU ext.
1269 printf_size_info NEW: GNU ext.
1270 profil_counter REMOVED
1271 pthread_mutexattr_getkind_np REPLACED
1272 pthread_mutexattr_setkind_np REPLACED
1273 ptsname NEW: Unix98 PTY
1274 ptsname_r NEW: Unix98 PTY
1276 putchar_locked REMOVED
1277 putgrent NEW: GNU ext.
1279 putpmsg NEW: STREAMS
1280 pututxline NEW: Unix98
1284 readdir64_r NEW: LFS
1285 remquo NEW: ISO C 9x
1286 remquof NEW: ISO C 9x
1287 remquol NEW: ISO C 9x
1289 roundf NEW: ISO C 9x
1290 roundl NEW: ISO C 9x
1292 scalbln NEW: ISO C 9x
1293 scalblnf NEW: ISO C 9x
1294 scalblnl NEW: ISO C 9x
1296 sendfile NEW: kernel
1297 setcontext NEW: Unix98
1298 setrlimit64 NEW: LFS
1299 setutxent NEW: Unix98
1301 sigignore NEW: Unix98
1302 sigqueue NEW: POSIX.1b
1303 sigrelse NEW: Unix98
1304 sigset NEW: POSIX.1b
1305 sigtimedwait NEW: POSIX.1b
1306 sigwaitinfo NEW: POSIX.1b
1307 sincos NEW: GNU ext.
1308 sincosf NEW: GNU ext.
1309 sincosl NEW: GNU ext.
1313 strcasestr NEW: GNU ext.
1314 strtoimax NEW: ISO C 9x
1315 strtoumax NEW: ISO C 9x
1316 strverscmp NEW: GNU ext.
1317 svcauthdes_stats NEW: Secure RPC
1318 svcunix_create NEW: sunrpc etx
1319 svcunixfd_create NEW: sunrpc ext
1320 swapcontext NEW: Unix98
1321 tcgetsid NEW: Unix98 PTY
1322 tdestroy NEW: GNU ext.
1323 tgamma NEW: ISO C 9x
1324 tgammaf NEW: ISO C 9x
1325 tgammal NEW: ISO C 9x
1329 truncf NEW: ISO C 9x
1330 truncl NEW: ISO C 9x
1332 unlockpt NEW: Unix98 PTY
1333 updwtmpx NEW: Unix98
1334 user2netname NEW: Secure RPC
1335 utmpxname NEW: Unix98
1336 versionsort NEW: GNU ext.
1337 versionsort64 NEW: GNU ext.
1339 wcscasecmp NEW: GNU ext.
1340 wcsncasecmp NEW: GNU ext.
1341 wcsnlen NEW: GNU ext.
1342 wcstoimax NEW: ISO C 9x
1343 wcstoll NEW: ISO C 9x
1344 wcstoull NEW: ISO C 9x
1345 wcstoumax NEW: ISO C 9x
1347 wordexp NEW: POSIX.2
1348 wordfree NEW: POSIX.2
1349 write_profiling REMOVED
1350 xdecrypt NEW: Secure RPC
1351 xdr_authdes_cred NEW: Secure RPC
1352 xdr_authdes_verf NEW: Secure RPC
1353 xdr_cryptkeyarg NEW: Secure RPC
1354 xdr_cryptkeyarg2 NEW: Secure RPC
1355 xdr_cryptkeyres NEW: Secure RPC
1356 xdr_getcredres NEW: Secure RPC
1357 xdr_key_netstarg NEW: Secure RPC
1358 xdr_key_netstres NEW: Secure RPC
1359 xdr_keybuf NEW: Secure RPC
1360 xdr_keystatus NEW: Secure RPC
1361 xdr_netnamestr NEW: Secure RPC
1362 xdr_sizeof NEW: Secure RPC
1363 xdr_unixcred NEW: sunrpc ext
1364 xencrypt NEW: Secure RPC
1365 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1376 * inet_ntoa is thread-safe
1378 * updwtmp is moved from libutil to libc
1380 * rewrite of cbrt function
1382 * update of timezone data
1396 * add atoll function
1398 * fix complex problems in Berkeley DB code
1400 * fix math functions
1404 * fixed lots of header problems (especially Linux/GNU specific)
1406 * dynamic loader preserves all registers
1408 * Roland McGrath provided support for handling of auxiliary objects in
1409 the ELF dynamic loader.
1411 * support for parallel builds is improved
1415 * GNU extensions are no longer declared by default. To enable them you
1416 must define the macro `_GNU_SOURCE' in your program or compile with
1419 * The library has changed from using GNU ld symbol aliases to using weak
1420 symbols where available. The ELF object file format supports weak
1421 symbols; GNU ld also supports weak symbols in the a.out format. (There
1422 is also now support for other GNU ld extensions in ELF. Use the
1423 `--with-elf' option to configure to indicate you have ELF, and
1424 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1425 of many files which contained only symbol aliases, reducing the size of
1426 the source and the compiled library; many other files were renamed to
1427 less cryptic names previously occupied by the symbol alias files.
1428 There is a new header file <elf.h> for programs which operate on
1429 files in the ELF format.
1431 * Converted to Autoconf version 2, so `configure' has more options.
1432 Run `configure --help' to see the details.
1434 * The library can now be configured to build profiling, highly-optimized
1435 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1436 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1437 `configure' enable building these extra libraries. The shared library is
1438 built by default when using both ELF and GNU ld. When shared libraries
1439 are enabled, the new library `-ldl' is available for arbitrary run-time
1440 loading of shared objects; its interface is defined in <dlfcn.h>. The
1441 new header file <link.h> gives access to the internals of the run-time
1442 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1443 application of same name on other systems and it provides information
1444 about dynamically linked binaries.
1446 * The C library now provides the run-time support code for profiling
1447 executables compiled with `-pg'. Programs can control the profiling code
1448 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1449 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1450 the support for this file format was contributed by David Mosberger-Tang.
1452 * The math code has been replaced with a math library based on fdlibm from
1453 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1454 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1455 functions. The math functions now reside in a separate library, so
1456 programs using them will need to use `-lm' their linking commands.
1458 * John C. Bowman contributed optimized ix87 assembler inline functions.
1460 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1461 mechanism similar to that found in Solaris 2. This is now used for the
1462 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1463 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1464 file controls what services are used for each individual database. This
1465 works by loading shared libraries with names specified in `nsswitch.conf',
1466 so service modules can be changed or added at any time without even
1467 relinking any program. Currently there are the file, db, and NIS based
1468 NSS services available.
1470 * The new functions `strtoq' and `strtouq' parse integer values from
1471 strings, like `strtol' and `strtoul', but they return `long long int' and
1472 `unsigned long long int' values, respectively (64-bit quantities).
1474 * The new functions `strtof' and `strtold' parse floating-point values from
1475 strings, like `strtod', but they return `float' and `long double' values,
1476 respectively (on some machines `double' and `long double' are the same).
1478 * Ulrich Drepper has contributed new implementations of the floating-point
1479 printing and reading code used in the `printf' family of functions and
1480 `strtod', `strtof', and `strtold'. These new functions are perfectly
1481 accurate, and much faster than the old ones.
1483 * The implementation of the POSIX locale model was completely rewritten by
1484 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1485 to compile the POSIX locale definition.
1487 * The former dummy implementations of the strcoll and strxfrm function are
1488 now replaced by fully functional code contributed by Ulrich Drepper. The
1489 collation information comes from the POSIX locale definitions.
1491 * The new header <langinfo.h> defines an interface for accessing
1492 various locale-dependent data (using the locale chosen with `setlocale').
1494 * Ulrich Drepper has contributed a new suite of functions for operation on
1495 wide-character and multibyte-character strings, in <wchar.h>;
1496 and classification and case conversion of wide characters, in <wctype.h>.
1497 These new functions are conforming to the ISO C, Amendement 1 specification.
1499 * There is now a second implementation of the standard I/O library available.
1500 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1501 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1503 * You can now use positional parameter specifications in format strings
1504 for the `printf' and `scanf' families of functions. For example,
1505 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1506 ``Number 6, Mr Jones''. This is mainly useful when providing different
1507 format strings for different languages, whose grammars may dictate
1508 different orderings of the values being printed. To support this
1509 feature, the interface for `register_printf_handler' has changed; see
1510 the header file <printf.h> for details.
1512 * The `printf' and `scanf' families of functions now understand a new
1513 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1514 to group numbers as indicated by the locale; for `scanf' and friends, this
1515 says to accept as valid only a number with all the proper grouping
1516 separators in the right places. In the default "C" locale, numbers are
1517 not grouped; but locales for specific countries will define the usual
1518 conventions (i.e. separate thousands with `,' in the US locale).
1520 * The pgrp functions have been regularized, slightly incompatibly but much
1521 less confusingly. The core functions are now `getpgid' and `setpgid',
1522 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1523 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1524 provided for compatibility. There is no longer an incompatible `getpgrp'
1525 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1527 * The new header file <fts.h> and suite of functions simplify programs that
1528 operate on directory trees. This code comes from 4.4 BSD.
1530 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1531 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1532 NSS scheme used in glibc.
1534 * There is a new malloc debugging hook `__memalign_hook'.
1536 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1537 `unsigned int' in <sys/types.h>. These are for compatibility only and
1538 their use is discouraged.
1540 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1541 done differently, so that it works even without GNU ld.
1543 * New function `euidaccess' checks allowed access to a file like `access',
1544 but using the effective IDs instead of the real IDs.
1546 * The time zone data files have been updated for the latest and greatest
1547 local time conventions of the countries of the world.
1549 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
1552 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
1553 for formatting floating-point numbers. They are provided only for
1554 compatibility; new programs should use `sprintf' instead. There are
1555 also equivalent function for the `long double' floating-point type and
1556 all functions also exist in a reentrant form.
1558 * The new auxiliary library `-lutil' from 4.4 BSD contains various
1559 functions for maintaining the login-record files (primarily of use to
1560 system programs such as `login'), and convenient functions for
1561 allocating and initializing a pseudo-terminal (pty) device.
1563 * Ulrich Drepper has contributed new support for System V style
1564 shared memory and IPC on systems that support it.
1566 * Ulrich Drepper has contributed several miscellaneous new functions found
1567 in System V: The `hsearch' family of functions provide an effective
1568 implementation of hash tables; `a64l' and `l64a' provide a very simple
1569 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1572 * Ulrich Drepper has contributed new reentrant counterparts for the
1573 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1575 * Ulrich Drepper has contributed new, highly-optimized versions of several
1576 string functions for the i486/Pentium family of processors.
1578 * Ulrich Drepper has updated the Linux-specific code, based largely
1579 on work done in Hongjiu Lu's version of GNU libc for Linux.
1580 The GNU library now supports Linux versions 2.0.10 and later,
1581 using the ELF object file format (i[3456]86-*-linux).
1583 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1585 * David Mosberger-Tang and Richard Henderson have ported the C library
1586 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
1587 dynamic linking support for ELF/Alpha.
1589 * Richard Henderson contributed several Alpha optimized assembler function
1590 for arithmetic and string handling.
1592 * Ulrich Drepper has contributed a new set of message catalog functions to
1593 support multiple languages using the <libintl.h> interface, for use with
1594 his new package GNU gettext. Translation volunteers have contributed
1595 catalogs of the library's messages in Spanish, German, and Korean.
1597 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1598 program and the `catgets' function for reading the catalog files it
1599 creates. (The <libintl.h> interface is preferred; we include the
1600 <nl_types.h> interface using `catgets' only for source compatibility with
1601 programs already written to use it.)
1603 * New header file <values.h> gives SVID-compatible names for <limits.h>
1606 * Various new macros, declarations, and small header files for compatibility
1609 * New function `group_member' is a convenient way to check if a process has
1610 a given effective group ID.
1612 * When using GCC 2.7 and later, the socket functions are now declared in a
1613 special way so that passing an argument of type `struct sockaddr_in *',
1614 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
1615 `struct sockaddr *' type, does not generate a type-clash warning.
1617 * New function `error' declared in header file <error.h> is a convenient
1618 function for printing error messages and optionally exiting; this is the
1619 canonical function used in GNU programs. The new functions `err', `warn',
1620 and friends in header file <err.h> are the canonical 4.4 BSD interface for
1621 doing the same thing.
1623 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
1624 POSIX.2 `glob' function to do ~ and {...} expansion.
1626 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
1627 `clearenv' which is used in POSIX.9 is also available.
1629 * New function `getsid' returns session ID number on systems that support it.
1631 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
1632 files <db.h> and <mpool.h> provide a rich set of functions for several
1633 types of simple databases stored in memory and in files, and <ndbm.h> is
1634 an old `ndbm'-compatible interface using the `db' functions. Link with
1635 `-ldb' to get these functions.
1637 * New macro `strdupa' copies a string like `strdup', but uses local stack
1638 space from `alloca' instead of dynamic heap space from `malloc'.
1640 * New function `strnlen' is like `strlen' but searches only a given maximum
1641 number of characters for the null terminator. `stpncpy', `strndup' and
1642 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1645 * New function `statfs' in header <sys/statfs.h>.
1647 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1648 provide convenient functions for operating on blocks of null-terminated
1651 * A new suite of functions in <utmp.h> handle all the details of reading
1652 and writing the utmp file.
1654 * An implementation of the NIS/YP(tm) based NSS service was contributed by
1657 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
1658 completely POSIX compliant and also implemented the extended functionality
1659 to handle alternate digit representation and alternate era date formats.
1661 * Ulrich Drepper provided an implementation of the `strptime' function
1662 defined in XPG4.2 which transforms a string into a `struct tm' value.
1664 * Paul Eggert provided the tzselect shell script as part of the timezone
1665 code. The shell script makes it easy to select the correct timezone
1668 * The implementation of the malloc family of functions is completely replaced
1669 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
1670 The implementation uses the mmap function (if available) and it is
1671 optimized for the use in multi threaded programs.
1673 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
1674 functions. This new functionality is usable by specifying a special
1675 salt string and it is compatible with implementation on *BSD systems.
1677 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
1678 `getsubopt' to handle second level command line options, `bsd_signal'
1679 to access BSD style `signal' functionality, the obsolete `regexp' style
1682 * the `lchown' function is available on system which support this
1685 * The implementation of the shadow password handling function was contributed
1688 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
1690 * POSIX.1g support was added. The <sys/select.h> header is available,
1691 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
1692 implementation of `getaddrinfo'.
1696 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
1698 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
1699 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
1701 * The new function `daemon' from 4.4 BSD is useful for server programs that
1702 want to put themselves in the background.
1704 * Joel Sherrill has contributed support for several standalone boards that
1705 run without an operating system.
1707 * `printf', `scanf' and friends now accept a `q' type modifier for long
1708 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
1710 * All of the code taken from BSD (notably most of the math and networking
1711 routines) has been updated from the BSD 4.4-Lite release.
1713 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
1715 * The new functions `getdomainname' and `setdomainname' fetch or change the
1716 YP/NIS domain name. These are system calls which exist on systems which
1719 * The time zone data files have been updated for the latest international
1722 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
1723 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
1727 * The C library now includes support for Sun RPC, from Sun's free
1728 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
1729 are included. (There is still no support for YP.)
1731 * Tom Quinn has contributed a port of the C library to SGI machines running
1732 Irix 4 (mips-sgi-irix4).
1734 * The new `lockf' function is a simplified interface to the locking
1735 facilities of `fcntl', included for compatibility.
1737 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
1739 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
1741 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
1744 * The error message printed by `assert' for a failed assertion now includes
1745 the name of the program (if using GNU ld) and the name of the calling
1746 function (with versions of GCC that support this).
1748 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
1750 * The library now includes the <sys/mman.h> header file and memory
1751 management functions `mmap', `munmap', `mprotect', `msync', and
1752 `madvise', on systems that support those facilities.
1754 * The interface for `mcheck' has changed slightly: the function called to
1755 abort the program when an allocation inconsistency is detected now takes
1756 an argument that indicates the type of failure. The new function
1757 `mprobe' lets you request a consistency check for a particular block at
1758 any time (checks are normally done only when you call `free' or `realloc'
1761 * It is now possible to easily cross-compile the C library, building on one
1762 system a library to run on another machine and/or operating system. All
1763 you need to do is set the variable `HOST_CC' in `configparms' to the
1764 native compiler for programs to run on the machine you are building on (a
1765 few generator programs are used on Unix systems); set `CC' to the
1768 * The new function `fexecve' (only implemented on the GNU system) executes
1769 a program file given a file descriptor already open on the file.
1773 * Brendan Kehoe has contributed most of a port to the DEC Alpha
1774 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
1776 * You can set the variable `libprefix' in `configparms' to specify a prefix
1777 to be prepended to installed library files; this makes it easy to install
1778 the GNU C library to be linked as `-lgnuc' or whatever.
1780 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
1781 copies a limited number of characters from a string, and returns the
1782 address of the last character written.
1784 * You no longer need to check for whether the installed `stddef.h' is
1785 compatible with the GNU C library. configure now checks for you.
1787 * You can now define a per-stream `fileno' function to convert the
1788 stream's cookie into an integral file descriptor.
1790 * ``malloc (0)'' no longer returns a null pointer. Instead, it
1791 allocates zero bytes of storage, and returns a unique pointer which
1792 you can pass to `realloc' or `free'. The behavior is undefined if
1793 you dereference this pointer.
1795 * The C library now runs on Sony NEWS m68k machines running either
1796 NewsOS 3 or NewsOS 4.
1798 * The new `syscall' function is a system-dependent primitive function
1799 for invoking system calls. It has the canonical behavior on Unix
1800 systems, including unreliable return values for some calls (such as
1801 `pipe', `fork' and `getppid').
1803 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
1804 to `EAGAIN', which is the preferred name. On systems whose kernels
1805 use two distinct codes, the C library now translates EWOULDBLOCK to
1806 EAGAIN in every system call function.
1810 * The GNU C Library Reference Manual is now distributed with the library.
1811 `make dvi' will produce a DVI file of the printed manual.
1812 `make info' will produce Info files that you can read on line using C-h i
1813 in Emacs or the `info' program.
1814 Please send comments on the manual to bug-glibc-manual@gnu.org.
1816 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
1818 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
1820 * Jason Merrill has contributed a port to the Sequent Symmetry running
1821 Dynix version 3 (i386-sequent-dynix).
1823 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
1824 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
1826 * New function `memory_warnings' lets you arrange to get warnings when
1827 malloc is running out of memory to allocate, like Emacs gives you.
1829 * The C library now contains the relocating allocator used in Emacs 19 for
1830 its editing buffers. This allocator (ralloc) minimizes allocation
1831 overhead and fragmentation by moving allocated regions around whenever it
1832 needs to. You always refer to a ralloc'd region with a "handle" (a
1833 pointer to a pointer--an object of type `void **').
1835 * There is a new `printf' format: `%m' gives you the string corresponding
1836 to the error code in `errno'.
1838 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
1839 or `%[' conversion, but instead of filling in a fixed-sized buffer you
1840 pass, the `a' modifier says to fill in a `char **' you pass with a
1843 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
1844 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
1845 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
1847 * `mkstemp' is a traditional Unix function to atomically create and open a
1848 uniquely-named temporary file.
1852 * The standard location for the file that says what the local timezone is
1853 has changed again. It is now `/usr/local/etc/localtime' (or more
1854 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
1856 * The distribution no longer contains any files with names longer than 14
1859 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
1860 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
1862 * New functions `ttyslot' and `syslog' from 4.4 BSD.
1866 * The configuration process has changed quite a bit. The `configure'
1867 script is now used just like the configuration scripts for other GNU
1868 packages. The `sysdeps' directory hierarchy is much rearranged.
1869 The file `INSTALL' explains the new scheme in detail.
1871 * The header files no longer need to be processed into ANSI C and
1872 traditional C versions. There is just one set of files to install, and
1873 it will work with ANSI or old C compilers (including `gcc -traditional').
1875 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
1876 MIPS DECStation running Ultrix 4.
1878 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
1879 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
1880 made itself into a shared library.
1882 * Yet further improved support for the i386, running 4.3 BSD-like systems
1883 (such as Mach 3 with the Unix single-server), or System V.
1885 * New function `strncasecmp' to do case-insensitive string comparison
1886 with limited length.
1888 * New function `strsep' is a reentrant alternative to `strtok'.
1890 * New functions `scandir' and `alphasort' for searching directories.
1892 * New function `setenv' is a better interface to `putenv'.
1894 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
1895 function for traversing a directory tree.
1897 * The GNU obstack package is now also part of the C library.
1898 The new function `open_obstack_stream' creates a stdio stream that
1899 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
1900 formatted output directly to an obstack.
1902 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
1903 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
1905 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
1907 * The new functions `strfry' and `memfrob' do mysterious and wonderful
1908 things to your strings.
1910 * There are some new test programs: test-fseek, testmb, and testrand.
1912 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
1913 These ports are not finished, but are a good starting place for really
1914 supporting those systems.
1916 * `/etc/localtime' is now the standard location for the file that says what
1917 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
1918 This follows the general principle that `/etc' is the place for all local
1919 configuration files.
1921 * The C library header files now use `extern "C"' when used by the C++
1922 compiler, so the C library should now work with C++ code.
1924 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
1925 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
1928 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
1929 function which uses the `merge sort' algorithm, and is said to be
1930 significantly faster than the old GNU `qsort' function. Merge sort is
1931 now the standard `qsort' function. The new algorithm can require a lot
1932 of temporary storage; so, the old sorting function is called when the
1933 required storage is not available.
1935 * The C library now includes Michael Glad's Ultra Fast Crypt, which
1936 provides the Unix `crypt' function, plus some other entry points.
1938 * The code and header files taken from 4.4 BSD have been updated with the
1939 latest files released from Berkeley.
1941 ----------------------------------------------------------------------
1942 Copyright information:
1944 Copyright (C) 1992-2009, 2010, 2011 Free Software Foundation, Inc.
1946 Permission is granted to anyone to make or distribute verbatim copies
1947 of this document as received, in any medium, provided that the
1948 copyright notice and this permission notice are preserved,
1949 thus giving the recipient permission to redistribute in turn.
1951 Permission is granted to distribute modified versions
1952 of this document, or of portions of it,
1953 under the above conditions, provided also that they
1954 carry prominent notices stating who last changed them.
1957 version-control: never