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1 GNU C Library NEWS -- history of user-visible changes.
2 Copyright (C) 1992-2013 Free Software Foundation, Inc.
3 See the end for copying conditions.
5 Please send GNU C library bug reports via <http://sourceware.org/bugzilla/>
6 using `glibc' in the "product" field.
7 \f
8 Version 2.18
10 * The following bugs are resolved with this release:
12 2546, 2560, 5159, 6809, 10060, 10062, 10357, 10686, 11120, 11561, 12387,
13 12515, 12723, 13550, 13889, 13951, 13988, 14142, 14176, 14200, 14256,
14 14280, 14293, 14317, 14327, 14478, 14496, 14582, 14686, 14812, 14888,
15 14894, 14908, 14920, 14952, 14964, 14981, 14982, 14985, 14991, 14994,
16 14996, 15000, 15003, 15006, 15007, 15014, 15020, 15023, 15036, 15054,
17 15055, 15062, 15078, 15084, 15085, 15086, 15100, 15160, 15214, 15221,
18 15232, 15234, 15283, 15285, 15287, 15304, 15305, 15307, 15309, 15327,
19 15330, 15335, 15336, 15337, 15339, 15342, 15346, 15359, 15361, 15366,
20 15380, 15381, 15394, 15395, 15405, 15406, 15409, 15416, 15418, 15419,
21 15423, 15424, 15426, 15429, 15431, 15432, 15441, 15442, 15448, 15465,
22 15480, 15485, 15488, 15490, 15493, 15497, 15506, 15529, 15536, 15553,
23 15577, 15583, 15618.
25 * CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
26 #15078).
28 * CVE-2013-1914 Stack overflow in getaddrinfo with many results has been
29 fixed (Bugzilla #15330).
31 * Add support for calling C++11 thread_local object destructors on thread
32 and program exit. This needs compiler support for offloading C++11
33 destructor calls to glibc.
35 * Improved worst case performance of libm functions with double inputs and
36 output.
38 * Support for priority inherited mutexes in pthread condition variables on
39 non-x86 architectures.
41 * Added a benchmark framework to track performance of functions in glibc.
43 * New <math.h> macro named issignaling to check for a signaling NaN (sNaN).
44 It is based on draft TS 18661 and currently enabled as a GNU extension.
46 * On Linux, the clock function now uses the clock_gettime system call
47 for improved precision, rather than old times system call.
48 \f
49 Version 2.17
51 * The following bugs are resolved with this release:
53 1349, 3439, 3479, 3665, 5044, 5246, 5298, 5400, 6530, 6677, 6778, 6808,
54 9685, 9914, 10014, 10038, 10114, 10191, 10631, 10873, 11438, 11607, 11638,
55 11741, 12140, 13013, 13412, 13542, 13601, 13603, 13604, 13629, 13679,
56 13696, 13698, 13717, 13741, 13759, 13761, 13763, 13881, 13939, 13950,
57 13952, 13966, 14042, 14047, 14090, 14150, 14151, 14152, 14154, 14157,
58 14166, 14173, 14195, 14197, 14237, 14246, 14251, 14252, 14283, 14298,
59 14303, 14307, 14328, 14331, 14336, 14337, 14347, 14349, 14368, 14376,
60 14417, 14447, 14459, 14476, 14477, 14501, 14505, 14510, 14516, 14518,
61 14519, 14530, 14532, 14538, 14543, 14544, 14545, 14557, 14562, 14568,
62 14576, 14579, 14583, 14587, 14595, 14602, 14610, 14621, 14638, 14645,
63 14648, 14652, 14660, 14661, 14669, 14672, 14683, 14694, 14716, 14719,
64 14743, 14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14803,
65 14805, 14807, 14811, 14815, 14821, 14822, 14824, 14828, 14831, 14833,
66 14835, 14838, 14856, 14863, 14865, 14866, 14868, 14869, 14871, 14872,
67 14879, 14889, 14893, 14898, 14914.
69 * Optimization of memcpy for MIPS.
71 * CVE-2011-4609 svc_run() produces high cpu usage when accept fails with
72 EMFILE has been fixed (Bugzilla #14889).
74 * The add-on ports collection is now distributed in the "ports" subdirectory
75 of the main GNU C Library distribution, rather than separately.
77 * Port to ARM AArch64 contributed by Linaro.
79 * Support for STT_GNU_IFUNC symbols added for s390 and s390x.
80 Optimized versions of memcpy, memset, and memcmp added for System z10 and
81 zEnterprise z196.
82 Implemented by Andreas Krebbel.
84 * The new function secure_getenv allows secure access to the environment,
85 returning NULL if running in a SUID/SGID process. This function replaces
86 the internal function __secure_getenv.
88 * SystemTap static probes have been added into the dynamic linker.
89 Implemented by Gary Benson.
91 * Optimizations of string functions strstr, strcasestr and memmem.
92 Implemented by Maxim Kuvyrkov.
94 * The minimum Linux kernel version that this version of the GNU C Library
95 can be used with is 2.6.16.
97 * Optimizations of string functions memchr, wcschr, wcscpy, and wcsrchr for
98 powerpc POWER7. Implemented by Will Schmidt.
100 * New configure option --disable-nscd builds the C library such that it
101 never attempts to contact the Name Service Caching Daemon (nscd).
102 New configure option --disable-build-nscd avoids building nscd itself;
103 this is the default if --disable-nscd is used.
105 * Improved support for cross-compilation, including cross-testing and
106 bootstrap builds without a previously built glibc.
108 * Several testsuite tests are now able to test multiple IFUNC variants of an
109 interface, rather than just testing the one that would be chooen by
110 default.
112 * New configure options --with-bugurl and --with-pkgversion, for
113 distributors to use to embed their bug-reporting and package version
114 information in --help and --version output.
116 * The ttyname and ttyname_r functions on Linux now fall back to searching for
117 the tty file descriptor in /dev/pts or /dev if /proc is not available. This
118 allows creation of chroots without the procfs mounted on /proc.
120 * The `crypt' function now fails if passed salt bytes that violate the
121 specification for those values. On Linux, the `crypt' function will
122 consult /proc/sys/crypto/fips_enabled to determine if "FIPS mode" is
123 enabled, and fail on encrypted strings using the MD5 or DES algorithm
124 when the mode is enabled.
126 * The `clock_*' suite of functions (declared in <time.h>) is now available
127 directly in the main C library. Previously it was necessary to link with
128 -lrt to use these functions. This change has the effect that a
129 single-threaded program that uses a function such as `clock_gettime' (and
130 is not linked with -lrt) will no longer implicitly load the pthreads
131 library at runtime and so will not suffer the overheads associated with
132 multi-thread support in other code such as the C++ runtime library.
134 * New locales: ayc_PE, doi_IN, ia_FR, mni_IN, nhn_MX, niu_NU, niu_NZ,
135 sat_IN, and szl_PL.
136 \f
137 Version 2.16
139 * The following bugs are resolved with this release:
141 174, 208, 350, 369, 411, 706, 766, 887, 2074, 2541, 2547, 2548, 2550,
142 2551, 2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678,
143 3335, 3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596,
144 4822, 5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794,
145 6884, 6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110, 10135,
146 10140, 10153, 10210, 10254, 10346, 10375, 10545, 10716, 10846, 11174,
147 11261, 11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047,
148 12097, 12193, 12194, 12297, 12298, 12301, 12340, 12354, 12416, 12495,
149 13058, 13223, 13361, 13525, 13526, 13527, 13528, 13529, 13530, 13531,
150 13532, 13533, 13547, 13551, 13552, 13553, 13555, 13556, 13559, 13563,
151 13566, 13576, 13579, 13583, 13592, 13594, 13613, 13618, 13637, 13656,
152 13658, 13673, 13691, 13695, 13704, 13705, 13706, 13718, 13726, 13738,
153 13739, 13743, 13750, 13758, 13760, 13761, 13775, 13786, 13787, 13792,
154 13806, 13824, 13840, 13841, 13844, 13846, 13848, 13851, 13852, 13854,
155 13871, 13872, 13873, 13879, 13882, 13883, 13884, 13885, 13886, 13892,
156 13895, 13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917,
157 13918, 13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928,
158 13938, 13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970,
159 13973, 13979, 13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036,
160 14040, 14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064,
161 14075, 14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123,
162 14134, 14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273,
163 14277, 14278.
165 * Support for the x32 ABI on x86-64 added. The x32 target is selected by
166 configuring glibc with:
167 BUILD_CC='gcc' CC='gcc -mx32' CXX='g++ -mx32'
168 Visit <http://sites.google.com/site/x32abi/> for more x32 ABI info.
169 Implemented by H.J. Lu.
171 * ISO C11 support:
173 + define static_assert
175 + do not declare gets
177 + declare at_quick_exit and quick_exit also for ISO C11
179 + aligned_alloc. NB: The code is deliberately allows the size parameter
180 to not be a multiple of the alignment. This is a moronic requirement
181 in the standard but it is only a requirement on the caller, not the
182 implementation.
184 + timespec_get added
186 + uchar.h support added
188 + CMPLX, CMPLXF, CMPLXL added
190 Implemented by Ulrich Drepper.
192 * Support for the IA-64 has been moved to ports.
194 * Remove support for anything but ELF binary format
196 * Checking versions of poll, ppoll added.
197 Implemented by Ulrich Drepper.
199 * More generic and 64-bit performance optimizations to math functions.
200 Implemented by Ulrich Drepper.
202 * New configure option --enable-obsolete-rpc makes the deprecated RPC
203 headers and functions available at compile time as they were before
204 version 2.14. This option will be removed at some time in the future
205 after the TI-RPC library becomes fully sufficient for the needs of
206 existing applications.
208 * Compatibility code for Linux kernel versions before 2.4 has been removed.
209 Note that glibc is not expected to work with any Linux kernel version
210 before 2.6.
212 * New header <sys/auxv.h> and function getauxval allowing easy access to
213 the AT_* key-value pairs passed from the Linux kernel. The header also
214 defines the HWCAP_* bits associated with the AT_HWCAP key.
216 * New locales: mag_IN
218 * New configure option --enable-systemtap builds SystemTap static probes
219 into libc for setjmp and longjmp and into libpthread for various operations.
220 So far the setjmp/longjmp probes and some of the libpthread probes are
221 provided only for i*86 and x86_64.
222 Implemented by Roland McGrath and Rayson Ho.
224 * Optimized expf for x86-32 and x86-64. Implemented by Liubov Dmitrieva.
226 * More optimized functions for PowerPC. Implemented by Adhemerval Zanella
227 and Will Schmidt.
229 * More optimized functions for SPARC. Implemented by David S. Miller.
231 * Improved support for cross-compilation, especially bootstrap builds
232 without a previously built glibc.
234 * Ports for the TILE-Gx and TILEPro families of processors. Contributed by
235 Chris Metcalf from Tilera.
237 * Support for the old ARM ABI has been removed from ports. Only the EABI is
238 now supported for ARM processors.
240 * The hard-float variant of the ARM EABI now uses /lib/ld-linux-armhf.so.3
241 as the name of the dynamic linker, to distinguish it from the
242 /lib/ld-linux.so.3 dynamic linker used for the base EABI.
244 * Support for CRIS has been removed from ports.
246 * A new class of installed header has been documented for low-level
247 platform-specific functionality. PowerPC added the first instance with a
248 function to provide time base register access. Contributed by Tulio
249 Magno Quites Machado Filho.
251 * ix86 configurations now install header files that are consistent with
252 what x86-64 configurations install. These same header files can be used
253 for -m32, -m64, or -mx32 builds.
254 Contributed by H.J. Lu.
256 * Math library bug fixes. A thorough audit of all open math library bugs was
257 conducted by Joseph Myers. Significant progress was made on many math
258 library bugs resulting in more accurate exceptions and function results.
259 Many thanks to all those that contributed including Andreas Jaeger for his
260 patch review and work on the x87 trigonometric instruction issues.
262 * Timezone data is no longer installed. Timezone-related binaries and scripts
263 will continue to be installed. Users should obtain their timezone data from
264 their distribution provider or from the tzdata package at
265 <ftp://munnari.oz.au/pub/>.
266 \f
267 Version 2.15
269 * The following bugs are resolved with this release:
271 6779, 6783, 9696, 10103, 10709, 11589, 11929, 12403, 12786, 12840, 12847,
272 12868, 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962,
273 13007, 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092,
274 13096, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179,
275 13185, 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335,
276 13337, 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472,
277 13484, 13506, 13515, 13523, 13524, 13538, 13540
279 * New program pldd to list loaded object of a process
280 Implemented by Ulrich Drepper.
282 * Add nss_db support back to glibc. No more dependency on Berkeley db
283 and support for initgroups lookups.
284 Implemented by Ulrich Drepper.
286 * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
287 Contributed by HJ Lu.
289 * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
290 Contributed by HJ Lu.
292 * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
293 on x86-32 and x86-64.
294 Contributed by Liubov Dmitrieva.
296 * Optimized strchr and strrchr for SSE on x86-32.
297 Contributed by Liubov Dmitrieva.
299 * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
300 for x86-64 and x86-32.
301 Contributed by Liubov Dmitrieva.
303 * New interfaces: scandirat, scandirat64
304 Implemented by Ulrich Drepper.
306 * Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
307 Implemented by Ulrich Drepper.
309 * nscd now also caches the netgroup database.
310 Implemented by Ulrich Drepper.
312 * Integrate libm with gcc's -ffinite-math-only option.
313 Implemented by Ulrich Drepper.
315 * Lots of generic, 64-bit, and x86-64-specific performance optimizations
316 to math functions. Implemented by Ulrich Drepper.
318 * Optimized strcasecmp and strncasecmp for AVX on x86-64.
319 Implemented by Ulrich Drepper.
321 * New Linux interfaces: process_vm_readv, process_vm_writev
323 * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
324 Implemented by Ulrich Drepper.
326 * Optimized nearbyint and strcasecmp for PPC.
327 Implemented by Adhemerval Zanella.
329 * New locales: bho_IN, unm_US, es_CU, ta_LK
330 \f
331 Version 2.14
333 * The following bugs are resolved with this release:
335 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
336 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
337 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
338 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
339 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
340 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
341 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
342 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
343 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
344 12795, 12811, 12813, 12814, 12841
346 * The RPC implementation in libc is obsoleted. Old programs keep working
347 but new programs cannot be linked with the routines in libc anymore.
348 Programs in need of RPC functionality must be linked against TI-RPC.
349 The TI-RPC implementation is IPv6 enabled and there are other benefits.
351 Visible changes of this change include (obviously) the inability to link
352 programs using RPC functions without referencing the TI-RPC library and the
353 removal of the RPC headers from the glibc headers.
354 Implemented by Ulrich Drepper.
356 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
357 syncfs, setns, sendmmsg
359 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
360 yue_HK, lij_IT, mhr_RU
362 * New encodings: CP770, CP771, CP772, CP773, CP774
364 * New program sotruss to trace calls through PLTs
365 Implemented by Ulrich Drepper.
367 * The malloc hook implementation is marked deprecated and will be removed
368 from the default implementation in the next version. The design never
369 worked ever since the introduction of threads. Even programs which do
370 not create threads themselves can use multiple threads created internally.
371 \f
372 Version 2.13
374 * The following bugs are resolved with this release:
376 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
377 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
378 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
379 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
380 12378, 12394, 12397
382 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
384 * POWER7 optimizations: memset, memcmp, strncmp
386 * New optimized string functions for x86-64: strnlen (SSE2),
387 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
388 Implemented by Ulrich Drepper.
389 \f
390 Version 2.12
392 * The following bugs are resolved with this release:
394 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915,
395 10918, 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001,
396 11007, 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070,
397 11093, 11115, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
398 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
399 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
400 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
401 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
403 * New interfaces: pthread_getname_np, pthread_setname_np
405 * New Linux interface: recvmmsg
407 * STT_GNU_IFUNC implemented for Sparc by David Miller.
409 * The dynamic linker now recognizes supported ABI versions from the
410 EI_ABIVERSION field in the ELF header.
411 Implemented by Ulrich Drepper.
413 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
414 will not be used to fill in password fields in the passwd.byname replies.
415 Instead it is used to synthesize the shadow.byname table, should it be
416 missing. This is a useful mode in some installations involving Solaris.
417 Implemented by Ulrich Drepper.
419 * New locales: kok_IN, sq_MK, cv_RU
420 \f
421 Version 2.11
423 * The following bugs are resolved with this release:
425 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
426 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
427 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
428 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
429 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
430 10789, 10817, 10823, 10840, 10847
432 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
433 mkostemps64
434 Implemented by Ulrich Drepper.
436 * Checking version of longjmp added that fails if an uninitialized stack
437 frame would be created. Implemented by Ulrich Drepper.
439 * STT_GNU_IFUNC is now supported in static executables.
440 Implemented by H.J. Lu.
442 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
444 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
445 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
446 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
447 Contributed by H.J. Lu.
449 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
450 Implemented by Ulrich Drepper.
452 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
453 strstr, strcasestr.
454 Contributed by H.J. Lu.
456 * Support for fma instruction in AVX on x86-64.
457 Implemented by H.J. Lu and Ulrich Drepper.
459 * AVX support in x86-64 auditing support in ld.so.
460 Implemented by H.J. Lu.
462 * STB_GNU_UNIQUE support added.
463 Implemented by Ulrich Drepper.
465 * Implement second fallback mode for optimized DNS lookup for even more
466 broken environments. If two requests from the same port are not
467 handled correctly close the socket and open a new one before sending
468 the second request. The 'single-request-reopen' option in /etc/resolv.conf
469 can be used to select this mode right away, instead of rediscovering the
470 necessity is every process again.
471 Implemented by Ulrich Drepper.
473 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
474 Implemented by Adam Tkac.
476 * Optimized iconv conversions for S390x.
477 Implemented by Andreas Krebbel.
479 * Using condvars with PI mutexes is now more efficient due to kernel
480 support for requeueing to PI futexes. NPTL support added for x86-64.
481 Implemented by Ulrich Drepper.
483 * New locales: ps_AF, my_MM
484 \f
485 Version 2.10
487 * The following bugs are resolved with this release:
489 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
490 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
491 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
492 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
493 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
495 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
496 Implemented by Ulrich Drepper.
498 * New Linux interfaces: accept4, fallocate, fallocate64.
499 Implemented by Ulrich Drepper.
501 * Correct declarations of string function when used in C++ code. This
502 could lead to compile errors for invalid C++ code.
504 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
505 now in POSIX.
507 * New POSIX 2008 interface: psiginfo
508 Implemented by Ulrich Drepper.
510 * New ISO C++1x interfaces: quick_exit, at_quick_exit
511 Implemented by Ulrich Drepper.
513 * Support for selecting between multiple function definitions at runtime
514 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
516 * The libcrypt library can now use the hash function implementations in
517 NSS. Implemented by Ulrich Drepper.
519 * The malloc implementation can be compiled to be less memory efficient
520 but higher performing in multi-threaded programs.
521 Implemented by Ulrich Drepper.
523 * New locales: nan_TW@latin, ks_IN
525 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
526 Implemented by Ulrich Drepper.
528 * Extended printf hook support. It is possible to use user-defined types
529 and extend existing format specifiers.
530 Implemented by Ulrich Drepper.
532 * Handling for group shadow files has been added.
533 Implemented by Ulrich Drepper.
535 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
536 servers (the case, e.g., for some people using the built-in DNS
537 server in ADSL modems/routers). There is a once-per-process timeout
538 in case of a broken server. To avoid it, users can run nscd or put
539 'options single-request' in /etc/resolv.conf.
540 Implemented by Ulrich Drepper.
541 \f
542 Version 2.9
544 * The following bugs are resolved with this release:
546 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
547 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
548 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
549 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
550 6968, 6974, 6980, 6995, 7008, 7009, 7029
552 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
553 up at the same time. Implemented by Ulrich Drepper.
555 * TLS descriptors for LD and GD on x86 and x86-64.
556 Implemented by Alexandre Oliva.
558 * getaddrinfo now handles DCCP and UDPlite.
559 Implemented by Ulrich Drepper.
561 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
562 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
563 Implemented by Ulrich Drepper.
565 * New implementation of memmem, strstr, and strcasestr which is O(n).
566 Implemented by Eric Blake.
568 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
570 * Implement "e" option for popen to open file descriptor with the
571 close-on-exec flag set. Implemented by Ulrich Drepper.
573 * Implement "b" mode for fmemopen. In this mode writes writes don't
574 implicitly add a NUL byte and seeks from the end of the buffer really
575 use the buffer end, not the string length as the basis.
576 Implemented by Ulrich Drepper.
578 * Many functions, exported and internal, now atomically set the close-on-exec
579 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
581 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
582 Sinhala)
583 Implemented by Pravin Satpute.
585 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
586 \f
587 Version 2.8
589 * The following bugs are resolved with this release:
591 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
592 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
593 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
594 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
595 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
596 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
597 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
599 * New locales: bo_CN, bo_IN, shs_CA.
601 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
603 * Sorting rules for some Indian languages (Devanagari and Gujarati).
604 Implemented by Pravin Satpute.
606 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
608 * nscd caches now all timeouts for DNS entries
609 Implemented by Ulrich Drepper.
611 * nscd is more efficient and wakes up less often.
612 Implemented by Ulrich Drepper.
614 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
615 vdprintf, and obstack_vprintf.
616 Implemented by Jakub Jelinek.
618 * Faster memset for x86-64.
619 Implemented by Harsha Jagasia and H.J. Lu.
621 * Faster memcpy on x86.
622 Implemented by Ulrich Drepper.
624 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
625 Implemented by Ulrich Drepper.
627 * Faster sqrt and sqrtf implemention for some PPC variants.
628 Implemented by Steven Munroe.
629 \f
630 Version 2.7
632 * The following bugs are resolved with this release:
634 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
635 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
636 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
637 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
638 5071, 5103, 5104, 5112, 5113, 5184, 5186
640 * More checking functions: fread, fread_unlocked, open*, mq_open.
641 Implemented by Jakub Jelinek and Ulrich Drepper.
643 * Extend fortification to C++. Implemented by Jakub Jelinek.
645 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
646 by not recognizing 'a' as a modifier when those specs are requested.
647 Implemented by Jakub Jelinek.
649 * PPC optimizations to math and string functions.
650 Implemented by Steven Munroe.
652 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
653 options to be passed. Implemented by Ulrich Drepper.
655 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
657 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
658 Implemented by Ulrich Drepper.
660 * Handle private futexes in the NPTL implementation.
661 Implemented by Jakub Jelinek and Ulrich Drepper.
663 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
664 Implemented by Roland McGrath and Ulrich Drepper.
666 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
668 * SHA-256 and SHA-512 based password encryption.
669 Implemented by Ulrich Drepper.
671 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
672 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
673 yo_NG.
675 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
676 Implemented by Ulrich Drepper.
677 \f
678 Version 2.6
680 * The following bugs are resolved with this release:
682 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
683 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
684 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
685 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
686 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
687 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
688 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
689 4702, 4858
691 * New Linux interfaces: epoll_pwait, sched_getcpu.
693 * New generic interfaces: strerror_l.
695 * nscd can now cache the services database. Implemented by Ulrich Drepper.
696 \f
697 Version 2.5
699 * The following bugs are resolved with this release:
701 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
702 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
703 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
704 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
705 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
706 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
707 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
708 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
709 3225, 3251, 3252, 3253, 3273
711 * For Linux, the sorting of addresses returned by getaddrinfo now also
712 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
713 Implemented by Ulrich Drepper.
715 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
716 Implemented by Ulrich Drepper.
718 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
720 * New iconv module for MIK. Contributed by Alexander Shopov.
722 * For sites with broken group and/or passwd database, the auto-propagate
723 option of nscd can prevent creating ID lookup entries from the results
724 of a name lookup and vice versa. This usually is no problem but some
725 site might have problems with the default behavior.
726 Implemented by Ulrich Drepper.
728 * Iterating over entire database in NIS can be slow. With the
729 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
730 to trade time for memory. The entire database will be read at once.
731 Implemented by Ulrich Drepper.
733 * The interfaces introduced in RFC 3542 have been implemented by
734 Ulrich Drepper.
736 * Support for the new ELF hash table format was added by Ulrich Drepper.
738 * Support for priority inheritance mutexes added by Jakub Jelinek and
739 Ulrich Drepper.
741 * Support for priority protected mutexes added by Jakub Jelinek.
743 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
744 or_IN, csb_PL, fy_NL, sr_ME.
745 \f
746 Version 2.4
748 * More overflow detection functions.
750 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
751 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
753 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
754 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
755 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
756 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
757 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
758 by Masahide Washizawa.
760 * It is now possible to install audit libraries for the dynamic linker using
761 LD_AUDIT. Implemented by Ulrich Drepper.
763 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
764 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
765 For a libc and libpthread that works well on Linux 2.4 kernels, we
766 recommend using the stable 2.3 branch.
768 * The new function open_wmemstream acts like open_memstream,
769 but uses a wchar_t wide character buffer.
771 * The new function ppoll is an improved version of poll, similar to pselect.
773 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
774 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
775 renameat, unlinkat, linkat, symlinkat, readlinkat.
777 * New Linux kernel system calls: unshare,
778 inotify_init, inotify_add_watch, inotify_rm_watch.
780 * The euidaccess function is now also known by the alias eaccess,
781 for compatibility with some other systems.
783 * Timezone data updated to 2006b version.
784 \f
785 Version 2.3.6
787 * The following bugs are resolved with this release:
789 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
790 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
791 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
792 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
793 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
794 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
796 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
798 * As of this release, GCC 4 can be used to compile the C Library.
800 * Timezone data updated to 2005m version.
801 \f
802 Version 2.3.5
804 * The following bugs are resolved with this release:
806 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
807 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
808 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
809 777, 787, 821, 822, 823, 825
811 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
812 \f
813 Version 2.3.4
815 * Support for RFC 3678. Real implementations exist only for Linux so far.
816 Implemented by Ulrich Drepper.
818 * nscd can now cache entries persistently. Expiring entries are reloaded.
819 For speedups the cache can be shared in memory with client processes.
820 Implemented by Ulrich Drepper.
822 * nscd can now perform SELinux checks.
823 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
825 * getaddrinfo queries are now cached. Canonical name lookup is performed
826 efficiently.
827 Implemented by Ulrich Drepper.
829 * The nothrow function attribute is used when headers are used by gcc when
830 compiling C code. This can avoid significant amounts of exception
831 handling data.
833 * The malloc functions perform more error checking and are stricter when
834 it comes to reacting on errors. The default action is to terminate
835 the process after showing an error message. Implemented by Ulrich Drepper.
837 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
838 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
840 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
841 namespaces using the new function dlmopen(). This feature is of course,
842 like most other dynamic loading functionality, not available in statically
843 linked applications. Implemented by Ulrich Drepper.
845 * Low-overhead boundary checking variants of string and some stdio functions
846 were added. These are to be used in conjunction with a gcc patch by
847 Jakub Jelinek which adds calls to these functions if possible.
848 Implemented by Jakub Jelinek and Ulrich Drepper.
850 * Old code for several operating systems and machine architectures that
851 have not been in working condition in a long time have been removed from
852 the main source tree maintained by the GNU C Library's maintainers.
853 These files are now reside in the separate `ports' source module
854 that is usable as an add-on when building the library.
855 \f
856 Version 2.3.3
858 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
859 interrogate the dynamic linker, compatible with the Solaris interface.
861 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
862 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
864 * getifaddrs now uses the netlink interface on Linux to get its information.
865 Implemented by Thorsten Kukuk.
867 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
868 Implemented by Ulrich Drepper.
870 * support for non-executable stacks on x86 has been added. Changes mostly
871 by Roland McGrath.
873 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
874 and Ulrich Drepper.
876 * getaddrinfo now performs destination address selection according to
877 RFC 3484.
878 \f
879 Version 2.3.2
881 * Thread-safe interfaces for many functions that access locale data
882 were added in version 2.3, but these features were omitted from NEWS.
883 Many functions have variants with an `_l' suffix that take a `locale_t'
884 object as a parameter rather than consulting the current locale.
885 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
886 create and maintain `locale_t' objects. Additionally, the new function
887 `uselocale' sets "the current locale" (as used by functions not so
888 parameterized) set for an individual thread. These features were added
889 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
891 * The functions getresuid, getresgid, setresuid, and setresgid, which
892 have long been available on Linux, are now declared in <unistd.h>
893 and are now also available on the Hurd.
895 * ELF thread-local storage support (TLS) now works on x86-64.
897 * The new dynamic string token $LIB is expanded in shared library names.
898 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
900 * Aldy Hernandez contributed complete software floating point support for
901 PowerPC machines with no FPU.
903 * fexecve is implemented on Linux.
905 * The `btowc' function should work at least twice as fast due to
906 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
908 * With approriate thread add-ons cancelable functions are now implemented
909 in libc.so as well. No need to call the function in libpthread. This
910 change allowed to finally disable the incorrect and expensive handling
911 of weak definition in ld.so.
913 * Yet more PLT entries in libc.so have been removed. We finally arrived
914 at the bare minimum. Startup times improved appropriately.
916 * Support for the new Linux/x86 system call interface was added. The
917 AT_SYSINFO auxiliary vector entry is recognized and handled.
918 \f
919 Version 2.3
921 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
922 charsets.
924 * iconv (the program and the interface) now accepts empty names (excluding
925 options like //TRANSLIT) to mean "use charset of current locale".
927 * localedef can now transliterate characters in strings which are not in
928 the provided charmap. The information from the input locale is used.
930 * Prelinking support was added for ELF targets. This requires additional
931 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
933 * Read-only stdio streams now use mmap to speed up operation by eliminating
934 copying and buffer underflows. To use add 'm' to the mode string of
935 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
937 * The malloc functions were completely rewritten by Wolfram Gloger based
938 on Doug Lea's malloc-2.7.0.c.
940 * Isamu Hasegawa contributed a completely new and POSIX-conformant
941 implementation of regex.
943 * Bruno Haible upgraded the iconv and locale implementation to support
944 Unicode 3.2.
946 * Contents of the LC_* and LANG environment variables in the CEN style are
947 not recognized anymore. It never was used. Change by Ulrich Drepper.
949 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
950 thread-local storage (TLS) ABI on some platforms.
951 Changes by Ulrich Drepper. SH support by Kaz Kojima.
953 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
954 EUC-JISX0213, and TSCII.
956 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
957 BSD-compatible interface for getting all network interface addresses.
958 Implementation for IPv4 by Roland McGrath.
960 * Loading of locale data is faster due to the introduction of a locale
961 archive. Implemented by Roland McGrath and Ulrich Drepper.
963 * Startup times are significantly reduced by not using exported functions
964 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
965 and Ulrich Drepper.
967 * Steven Munroe contributed a port to PowerPC64/Linux.
968 \f
969 Version 2.2.6
971 * The Hurd now uses the GNU libio implementation of stdio rather than the
972 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
974 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
975 with the same behavior as the Linux system call of the same name.
976 \f
977 Version 2.2.5
979 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
980 128-bit long double format.
982 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
983 IBM1161, and IBM1162 charsets.
985 * Andreas Jaeger contributed a port to x86-64/Linux.
987 * Peter Bruin contributed a port to PowerPC/Hurd.
989 * libc functions using I/O streams now can handle wide-oriented streams
990 as well.
992 * optimizations in the dynamic linker. Binaries created by recent binutils
993 versions start up quicker due to reduced time spent on relocations.
995 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
996 \f
997 Version 2.2.4
999 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
1000 asinh, atanh, j0 for the 128-bit long double format.
1002 * Bruno Haible updated all the code handling Unicode in some form to
1003 support Unicode 3.1.
1005 * Speed of regex for single-byte locales is back to previous levels.
1006 Patch by Isamu Hasegawa.
1008 * Alpha, SPARC, and IA-64 now also using floating stacks.
1010 * Startup time of internationalized applications greatly improved through
1011 iconv cache. Use iconvconfig to generate the cache file.
1012 Contributed by Ulrich Drepper.
1014 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
1015 severe performance problems. Patch by David Mosberger.
1017 * The Hurd port got a lot more functionality like AIO, various stdio
1018 extensions, etc. Mainly done by Roland McGrath.
1020 * mtrace can now lookup symbols in shared libraries.
1021 \f
1022 Version 2.2.3
1024 * Intel's IA-64 math library is largely integrated. It provides fast and
1025 accurate implementatations for most basic and standard math functions
1026 in float, double, and long double format.
1028 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
1029 and asin for the 96-bit long double format and asin, log, tan for the
1030 128-bit long double format.
1032 * The beginning of a last-bit accurate math library by IBM Haifa were added.
1033 The basic double functions exist today. Contributed by Abraham Ziv
1034 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
1035 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
1037 * An asynchronous name lookup library was added. The interface is designed
1038 after POSIX AIO. The proposal was circulated beforehand to get comments.
1039 No negative ones came in. Implemented by Ulrich Drepper.
1041 * Port to S390/64bit contributed by Martin Schwidefsky
1042 <schwidefsky@de.ibm.com>.
1044 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
1045 of functions for Linux/IA-64.
1047 * The RPC code is now thread safe. Threads can now use the same service
1048 of different services at the same time. Patch by Eric Norum
1049 <eric.norum@usask.ca> with some help by Ulrich Drepper.
1051 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
1052 family of functions for Linux/S390.
1054 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
1055 of functions for Linux/x86.
1057 * Port to Linux/CRIS contributed by Axis Communications.
1058 \f
1059 Version 2.2.2
1061 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
1062 we can now check for namespace violations and missing declarations. The
1063 result is that almost all headers are now Unix-compliant (as defined in
1064 the upcoming XPG6). The negative side is that some programs might need
1065 corrections, too, if they depend on the incorrect form of the headers in
1066 previous versions which defined too many symbols and included too many
1067 other headers.
1069 * regex now handles multibyte character sets correctly.
1070 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
1072 * iconv (the program) does now conform to the upcoming XPG6 and handles
1073 charmaps. Instead of the charset names the path of charmaps can be
1074 provided and the conversion happens based on this data.
1075 Contributed by Ulrich Drepper.
1077 * The locale program now provides detailed information about the installed
1078 locales. While
1080 locale -a
1082 only lists the names of the supported locales
1084 locale -a --verbose
1086 provides details such as country, language, and codeset name.
1087 Contributed by Ulrich Drepper.
1088 \f
1089 Version 2.2.1
1091 * The gencat program now parses the input file according to the charset
1092 selected by the LC_CTYPE category. This is important for stateful
1093 character sets. To make generating catalogs easier there is a way
1094 to overwrite the charset selected by the locale: before the first
1095 message or $ quote line the catalog can contain a line like
1097 $ codeset=ISO-8859-2
1099 to select the charset (ISO-8859-2 in this case).
1101 Implemented by Shinya Hanataka and Ulrich Drepper.
1103 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
1104 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
1105 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
1107 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
1108 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
1110 * The LANGUAGE environment variable is now ignored unless the locale is
1111 changed from the default "C" locale.
1113 * The usual bug fixes.
1114 \f
1115 Version 2.2
1117 * Greg McGary added runtime support for bounds checking using gcc's
1118 new -fbounded-pointers option. ix86 target is complete. PowerPC
1119 is in progress.
1121 * Thorsten Kukuk added secure mode support to nscd.
1123 * The Berkeley db libraries have been removed.
1125 Related, the nss_db module is now in a separate package since it
1126 obviously requires a database library being available.
1128 * Wide character I/O streams implemented by Ulrich Drepper.
1130 * Functions from the extended socket API added by Ulrich Drepper.
1132 * Functions feenableexcept and fedisableexcept to control the
1133 behaviour of individual exceptions have been added by Andreas Jaeger.
1135 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
1137 * The resolver code has been updated from bind 8.2.3-T5B which supports
1138 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
1139 and Mark Kettenis.
1141 This change could in some situations effect backward compatibility. Since
1142 now `_res' is a thread-local instead of a global variable, modifying it
1143 in one thread does not have any effect in other threads.
1145 The resolver library was also extended to allow IPv6 as the transport
1146 protocol for the requests. This work was done by Stig Venaas.
1148 * Compatibility code for K&R C compilers has been removed from the
1149 header files. A ISO C compiler is needed to use the library
1150 (conforming to either C89 or C99 standard).
1152 * Complete rewrite of the localedef program to support multibyte character
1153 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
1154 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
1155 Implemented by Ulrich Drepper.
1157 Bruno Haible significantly improved the generation and use of the data
1158 structures for the wide character tables.
1160 * Plural handling in gettext implemented by Ulrich Drepper.
1162 * The utmp daemon has been removed.
1164 * The port to MIPS-Linux has been finished by Andreas Jaeger.
1166 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
1167 and Yutaka Niibe.
1169 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
1171 * POSIX barriers implemented by Kaz Kylheku.
1173 * POSIX spawn function family implemented by Ulrich Drepper.
1175 * POSIX spinlocks are now available.
1177 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
1179 * the configure option --enable-kernel=X.Y.Z allows to strip out
1180 compatibility for kernel versions before X.Y.Z. This is currently only
1181 implemented for Linux.
1183 * the sockaddr_in6 structure changed. The IPv6 working group added a new
1184 field sin6_scope_id. This means that all programs using IPv6 should be
1185 recompiled. Don't expect binary compatibility with previous glibc
1186 versions.
1188 * various conversion modules for IBM character sets contributed by
1189 Masahide Washizawa.
1191 * IA-64 port by Jes Sorensen and HJ Lu.
1192 \f
1193 Version 2.1.3
1195 * bug fixes
1197 \f
1198 Version 2.1.2
1200 * bug fixes
1202 \f
1203 Version 2.1.1
1205 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
1207 * New xdr functions are added; some rpc functions are now 64bit clean.
1209 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
1211 * Fixed known incompatibilities with glibc 2.0.
1213 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
1215 * Optimized a number of functions (especially the ELF dynamic loader).
1217 * Update timezone data files.
1219 * lots of charmaps corrections
1221 * some new locale definitions and charmaps
1223 \f
1224 Version 2.1
1226 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
1227 conform to POSIX member type requirements. Symbol versions have been
1228 adjusted as needed within the library, and for direct use by applications,
1229 but there is potential for problems if third-party libraries use
1230 struct timeval as part of their interface. This does not present
1231 a problem for X and other "essential" system libraries.
1233 * An additional locale model to support C++ Standard Library locale
1234 model and probably more was implemented by Ulrich Drepper.
1236 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
1237 symbol level.
1239 * Miles Bader provided the `argp' function family to support hierachical
1240 command line argument parsing, layered on top of getopt.
1242 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
1244 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
1245 numbers.
1247 * scanf recognizes the %a and %A format for scanning floating point numbers.
1249 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
1250 information and interfaces for the available integer types.
1252 * about 130 new math functions were added to implement the ISO C9x math
1253 library.
1255 * the new header <complex.h> contains definitions of the complex math
1256 functions from ISO C 9X.
1258 * the new header <tgmath.h> defines generic macros to use complex or
1259 real valued functions.
1261 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
1263 * Andreas Jaeger provided a test suite for the math library.
1265 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
1267 * Ulrich Drepper added character set conversion functions (iconv).
1269 * Optimized string functions have been added.
1271 * The localedata addon is now part of glibc.
1273 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1275 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1276 daemon for NSS (nscd).
1278 Missing a better place here are some numbers on improvements. Under
1279 Linux 2.1.125 un-tar-ing the kernel sources takes
1281 user system wall
1283 using local files 12.19s 6.88s 22.91s
1285 using NIS 13.92s 8.91s 26.34s
1287 using NIS & nscd 10.37s 7.34s 25.30s
1289 using NIS+ 27.57s 30.37s 640.46s
1291 using NIS+ & nscd 10.25s 7.83s 26.51s
1293 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1295 Keep in mind that non-namelookup related operations dominate above times.
1296 It was just a common complain that using NIS+ unpacking the kernel is
1297 horribly slow.
1299 [1] The old nscd implementation is not available anymore since it was
1300 distributed with glibc up to version 2.0.98 and thus is now replaced.
1302 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1304 * Mark Kettenis provided a Hesiod NSS module.
1306 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1307 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1309 * rcmd can now handle netgroups (Dick Streefland).
1311 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1312 Bambrough.
1314 * Support for the IPv6 protocol has been added to the socket API, as per the
1315 latest draft standards.
1317 * Support for Linux 2.2 has been added.
1319 * Interface changes relative to the latest 2.0.x release:
1320 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1321 addseverity NEW: Unix98
1322 alphasort64 NEW: LFS
1323 argp_err_exit_status NEW: argp, GNU ext
1324 argp_error NEW: argp, GNU ext
1325 argp_failure NEW: argp, GNU ext
1326 argp_help NEW: argp, GNU ext
1327 argp_parse NEW: argp, GNU ext
1328 argp_program_bug_address NEW: argp, GNU ext
1329 argp_program_version NEW: argp, GNU ext
1330 argp_program_version_hook NEW: argp, GNU ext
1331 argp_state_help NEW: argp, GNU ext
1332 argp_usage NEW: argp, GNU ext
1333 authdes_create NEW: Secure RPC
1334 authdes_getucred NEW: Secure RPC
1335 authdes_pk_create NEW: Secure RPC
1336 backtrace NEW: GNU ext.
1337 backtrace_symbols NEW: GNU ext.
1338 backtrace_symbols_fd NEW: GNU ext.
1339 cacos NEW: ISO C 9x
1340 cacosf NEW: ISO C 9x
1341 cacosh NEW: ISO C 9x
1342 cacoshf NEW: ISO C 9x
1343 cacoshl NEW: ISO C 9x
1344 cacosl NEW: ISO C 9x
1345 capget NEW: kernel
1346 capset NEW: kernel
1347 carg NEW: ISO C 9x
1348 cargf NEW: ISO C 9x
1349 cargl NEW: ISO C 9x
1350 casin NEW: ISO C 9x
1351 casinf NEW: ISO C 9x
1352 casinh NEW: ISO C 9x
1353 casinhf NEW: ISO C 9x
1354 casinhl NEW: ISO C 9x
1355 casinl NEW: ISO C 9x
1356 catan NEW: ISO C 9x
1357 catanf NEW: ISO C 9x
1358 catanh NEW: ISO C 9x
1359 catanhf NEW: ISO C 9x
1360 catanhl NEW: ISO C 9x
1361 catanl NEW: ISO C 9x
1362 cbc_crypt NEW: Secure RPC
1363 ccos NEW: ISO C 9x
1364 ccosf NEW: ISO C 9x
1365 ccosh NEW: ISO C 9x
1366 ccoshf NEW: ISO C 9x
1367 ccoshl NEW: ISO C 9x
1368 ccosl NEW: ISO C 9x
1369 cexp NEW: ISO C 9x
1370 cexpf NEW: ISO C 9x
1371 cexpl NEW: ISO C 9x
1372 cimag NEW: ISO C 9x
1373 cimagf NEW: ISO C 9x
1374 cimagl NEW: ISO C 9x
1375 clearerr_locked REMOVED
1376 clntunix_create NEW: sunrpc ext
1377 clog NEW: ISO C 9x
1378 clog10 NEW: ISO C 9x
1379 clog10f NEW: ISO C 9x
1380 clog10l NEW: ISO C 9x
1381 clogf NEW: ISO C 9x
1382 clogl NEW: ISO C 9x
1383 conj NEW: ISO C 9x
1384 conjf NEW: ISO C 9x
1385 conjl NEW: ISO C 9x
1386 cpow NEW: ISO C 9x
1387 cpowf NEW: ISO C 9x
1388 cpowl NEW: ISO C 9x
1389 cproj NEW: ISO C 9x
1390 cprojf NEW: ISO C 9x
1391 cprojl NEW: ISO C 9x
1392 creal NEW: ISO C 9x
1393 crealf NEW: ISO C 9x
1394 creall NEW: ISO C 9x
1395 creat64 NEW: LFS
1396 csin NEW: ISO C 9x
1397 csinf NEW: ISO C 9x
1398 csinh NEW: ISO C 9x
1399 csinhf NEW: ISO C 9x
1400 csinhl NEW: ISO C 9x
1401 csinl NEW: ISO C 9x
1402 csqrt NEW: ISO C 9x
1403 csqrtf NEW: ISO C 9x
1404 csqrtl NEW: ISO C 9x
1405 ctan NEW: ISO C 9x
1406 ctanf NEW: ISO C 9x
1407 ctanh NEW: ISO C 9x
1408 ctanhf NEW: ISO C 9x
1409 ctanhl NEW: ISO C 9x
1410 ctanl NEW: ISO C 9x
1411 des_setparity NEW: Secure RPC
1412 ecb_crypt NEW: Secure RPC
1413 endutxent NEW: Unix98
1414 exp10 NEW: ISO C 9x
1415 exp10f NEW: ISO C 9x
1416 exp10l NEW: ISO C 9x
1417 exp2 NEW: ISO C 9x
1418 exp2f NEW: ISO C 9x
1419 exp2l NEW: ISO C 9x
1420 fattach NEW: STREAMS
1421 fdetach NEW: STREAMS
1422 fdim NEW: ISO C 9x
1423 fdimf NEW: ISO C 9x
1424 fdiml NEW: ISO C 9x
1425 feclearexcept NEW: ISO C 9x
1426 fegetenv NEW: ISO C 9x
1427 fegetexceptflag NEW: ISO C 9x
1428 fegetround NEW: ISO C 9x
1429 feholdexcept NEW: ISO C 9x
1430 feof_locked REMOVED
1431 feraiseexcept NEW: ISO C 9x
1432 ferror_locked REMOVED
1433 fesetenv NEW: ISO C 9x
1434 fesetexceptflag NEW: ISO C 9x
1435 fesetround NEW: ISO C 9x
1436 fetestexcept NEW: ISO C 9x
1437 feupdateenv NEW: ISO C 9x
1438 fflush_locked REMOVED
1439 ffsl NEW: GNU ext.
1440 ffsll NEW: GNU ext.
1441 fgetpos64 NEW: LFS
1442 fgets_unlocked NEW: GNU ext.
1443 fileno_locked REMOVED
1444 fma NEW: ISO C 9x
1445 fmaf NEW: ISO C 9x
1446 fmal NEW: ISO C 9x
1447 fmax NEW: ISO C 9x
1448 fmaxf NEW: ISO C 9x
1449 fmaxl NEW: ISO C 9x
1450 fmin NEW: ISO C 9x
1451 fminf NEW: ISO C 9x
1452 fminl NEW: ISO C 9x
1453 fmtmsg NEW: Unix98
1454 fopen64 NEW: LFS
1455 fputc_locked REMOVED
1456 fputs_unlocked NEW: GNU ext.
1457 fread_unlocked NEW: GNU ext.
1458 freopen64 NEW: LFS
1459 fseeko NEW: Unix98
1460 fsetpos64 NEW: LFS
1461 fstatfs64 NEW: LFS
1462 fstatvfs NEW: Unix98
1463 fstatvfs64 NEW: LFS
1464 ftello NEW: Unix98
1465 ftello64 NEW: LFS
1466 ftruncate64 NEW: LFS
1467 ftw64 NEW: LFS
1468 fwrite_unlocked NEW: GNU ext.
1469 gai_strerror NEW: IPv6
1470 gamma_r REMOVED
1471 gammaf_r REMOVED
1472 gammal_r REMOVED
1473 getchar_locked REMOVED
1474 getdate NEW: Unix98
1475 getdate_err NEW: Unix98
1476 getdate_r NEW: GNU ext.
1477 getmsg NEW: STREAMS
1478 getnameinfo NEW: IPv6
1479 getnetname NEW: Secure RPC
1480 getpmsg NEW: STREAMS
1481 getpt NEW: Unix98 PTY
1482 getrlimit64 NEW: LFS
1483 getutxent NEW: Unix98
1484 getutxid NEW: Unix98
1485 getutxline NEW: Unix98
1486 glob64 NEW: GNU ext.
1487 globfree64 NEW: GNU ext.
1488 gnu_get_libc_release NEW: GNU ext.
1489 gnu_get_libc_version NEW: GNU ext.
1490 grantpt NEW: Unix98 PTY
1491 host2netname NEW: Secure RPC
1492 iconv NEW: iconv
1493 iconv_close NEW: iconv
1494 iconv_open NEW: iconv
1495 if_freenameindex NEW: IPv6
1496 if_indextoname NEW: IPv6
1497 if_nameindex NEW: IPv6
1498 if_nametoindex NEW: IPv6
1499 in6addr_any NEW: IPv6
1500 in6addr_loopback NEW: IPv6
1501 inet6_isipv4mapped NEW: IPv6
1502 isastream NEW: STREAMS
1503 iswblank NEW: GNU ext.
1504 key_decryptsession NEW: Secure RPC
1505 key_decryptsession_pk NEW: Secure RPC
1506 key_encryptsession NEW: Secure RPC
1507 key_encryptsession_pk NEW: Secure RPC
1508 key_gendes NEW: Secure RPC
1509 key_get_conv NEW: Secure RPC
1510 key_secretkey_is_set NEW: Secure RPC
1511 key_setnet NEW: Secure RPC
1512 key_setsecret NEW: Secure RPC
1513 llrint NEW: ISO C 9x
1514 llrintf NEW: ISO C 9x
1515 llrintl NEW: ISO C 9x
1516 llround NEW: ISO C 9x
1517 llroundf NEW: ISO C 9x
1518 llroundl NEW: ISO C 9x
1519 log2 NEW: ISO C 9x
1520 log2f NEW: ISO C 9x
1521 log2l NEW: ISO C 9x
1522 lrint NEW: ISO C 9x
1523 lrintf NEW: ISO C 9x
1524 lrintl NEW: ISO C 9x
1525 lround NEW: ISO C 9x
1526 lroundf NEW: ISO C 9x
1527 lroundl NEW: ISO C 9x
1528 lseek64 NEW: LFS
1529 makecontext NEW: Unix98
1530 mempcpy NEW: GNU ext.
1531 mmap64 NEW: LFS
1532 moncontrol REMOVED
1533 modify_ldt NEW: kernel
1534 nan NEW: ISO C 9x
1535 nanf NEW: ISO C 9x
1536 nanl NEW: ISO C 9x
1537 nearbyint NEW: ISO C 9x
1538 nearbyintf NEW: ISO C 9x
1539 nearbyintl NEW: ISO C 9x
1540 netname2host NEW: Secure RPC
1541 netname2user NEW: Secure RPC
1542 nexttoward NEW: ISO C 9x
1543 nexttowardf NEW: ISO C 9x
1544 nexttowardl NEW: ISO C 9x
1545 nftw NEW: Unix98
1546 nftw64 NEW: LFS
1547 open64 NEW: LFS
1548 passwd2des NEW: Secure RPC
1549 pow10 NEW: GNU ext.
1550 pow10f NEW: GNU ext.
1551 pow10l NEW: GNU ext.
1552 pread NEW: Unix98
1553 pread64 NEW: LFS
1554 printf_size NEW: GNU ext.
1555 printf_size_info NEW: GNU ext.
1556 profil_counter REMOVED
1557 pthread_mutexattr_getkind_np REPLACED
1558 pthread_mutexattr_setkind_np REPLACED
1559 ptsname NEW: Unix98 PTY
1560 ptsname_r NEW: Unix98 PTY
1561 putc_locked REMOVED
1562 putchar_locked REMOVED
1563 putgrent NEW: GNU ext.
1564 putmsg NEW: STREAMS
1565 putpmsg NEW: STREAMS
1566 pututxline NEW: Unix98
1567 pwrite NEW: Unix98
1568 pwrite64 NEW: LFS
1569 readdir64 NEW: LFS
1570 readdir64_r NEW: LFS
1571 remquo NEW: ISO C 9x
1572 remquof NEW: ISO C 9x
1573 remquol NEW: ISO C 9x
1574 round NEW: ISO C 9x
1575 roundf NEW: ISO C 9x
1576 roundl NEW: ISO C 9x
1577 rtime NEW: GNU ext.
1578 scalbln NEW: ISO C 9x
1579 scalblnf NEW: ISO C 9x
1580 scalblnl NEW: ISO C 9x
1581 scandir64 NEW: LFS
1582 sendfile NEW: kernel
1583 setcontext NEW: Unix98
1584 setrlimit64 NEW: LFS
1585 setutxent NEW: Unix98
1586 sighold NEW: Unix98
1587 sigignore NEW: Unix98
1588 sigqueue NEW: POSIX.1b
1589 sigrelse NEW: Unix98
1590 sigset NEW: POSIX.1b
1591 sigtimedwait NEW: POSIX.1b
1592 sigwaitinfo NEW: POSIX.1b
1593 sincos NEW: GNU ext.
1594 sincosf NEW: GNU ext.
1595 sincosl NEW: GNU ext.
1596 statfs64 NEW: LFS
1597 statvfs NEW: Unix98
1598 statvfs64 NEW: LFS
1599 strcasestr NEW: GNU ext.
1600 strtoimax NEW: ISO C 9x
1601 strtoumax NEW: ISO C 9x
1602 strverscmp NEW: GNU ext.
1603 svcauthdes_stats NEW: Secure RPC
1604 svcunix_create NEW: sunrpc etx
1605 svcunixfd_create NEW: sunrpc ext
1606 swapcontext NEW: Unix98
1607 tcgetsid NEW: Unix98 PTY
1608 tdestroy NEW: GNU ext.
1609 tgamma NEW: ISO C 9x
1610 tgammaf NEW: ISO C 9x
1611 tgammal NEW: ISO C 9x
1612 tmpfile64 NEW: LFS
1613 trunc NEW: ISO C 9x
1614 truncate64 NEW: LFS
1615 truncf NEW: ISO C 9x
1616 truncl NEW: ISO C 9x
1617 umount2 NEW: kernel
1618 unlockpt NEW: Unix98 PTY
1619 updwtmpx NEW: Unix98
1620 user2netname NEW: Secure RPC
1621 utmpxname NEW: Unix98
1622 versionsort NEW: GNU ext.
1623 versionsort64 NEW: GNU ext.
1624 waitid NEW: Unix98
1625 wcscasecmp NEW: GNU ext.
1626 wcsncasecmp NEW: GNU ext.
1627 wcsnlen NEW: GNU ext.
1628 wcstoimax NEW: ISO C 9x
1629 wcstoll NEW: ISO C 9x
1630 wcstoull NEW: ISO C 9x
1631 wcstoumax NEW: ISO C 9x
1632 wcswcs NEW: Unix98
1633 wordexp NEW: POSIX.2
1634 wordfree NEW: POSIX.2
1635 write_profiling REMOVED
1636 xdecrypt NEW: Secure RPC
1637 xdr_authdes_cred NEW: Secure RPC
1638 xdr_authdes_verf NEW: Secure RPC
1639 xdr_cryptkeyarg NEW: Secure RPC
1640 xdr_cryptkeyarg2 NEW: Secure RPC
1641 xdr_cryptkeyres NEW: Secure RPC
1642 xdr_getcredres NEW: Secure RPC
1643 xdr_key_netstarg NEW: Secure RPC
1644 xdr_key_netstres NEW: Secure RPC
1645 xdr_keybuf NEW: Secure RPC
1646 xdr_keystatus NEW: Secure RPC
1647 xdr_netnamestr NEW: Secure RPC
1648 xdr_sizeof NEW: Secure RPC
1649 xdr_unixcred NEW: sunrpc ext
1650 xencrypt NEW: Secure RPC
1651 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1652 \f
1653 Version 2.0.6
1655 * more bug fixes
1657 \f
1658 Version 2.0.5
1660 * more bug fixes
1662 * inet_ntoa is thread-safe
1664 * updwtmp is moved from libutil to libc
1666 * rewrite of cbrt function
1668 * update of timezone data
1669 \f
1670 Version 2.0.4
1672 * more bug fixes
1673 \f
1674 Version 2.0.3
1676 * more bug fixes
1677 \f
1678 Version 2.0.2
1680 * more bug fixes
1682 * add atoll function
1684 * fix complex problems in Berkeley DB code
1686 * fix math functions
1687 \f
1688 Version 2.0.1
1690 * fixed lots of header problems (especially Linux/GNU specific)
1692 * dynamic loader preserves all registers
1694 * Roland McGrath provided support for handling of auxiliary objects in
1695 the ELF dynamic loader.
1697 * support for parallel builds is improved
1698 \f
1699 Version 2.0
1701 * GNU extensions are no longer declared by default. To enable them you
1702 must define the macro `_GNU_SOURCE' in your program or compile with
1703 `-D_GNU_SOURCE'.
1705 * The library has changed from using GNU ld symbol aliases to using weak
1706 symbols where available. The ELF object file format supports weak
1707 symbols; GNU ld also supports weak symbols in the a.out format. (There
1708 is also now support for other GNU ld extensions in ELF. Use the
1709 `--with-elf' option to configure to indicate you have ELF, and
1710 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1711 of many files which contained only symbol aliases, reducing the size of
1712 the source and the compiled library; many other files were renamed to
1713 less cryptic names previously occupied by the symbol alias files.
1714 There is a new header file <elf.h> for programs which operate on
1715 files in the ELF format.
1717 * Converted to Autoconf version 2, so `configure' has more options.
1718 Run `configure --help' to see the details.
1720 * The library can now be configured to build profiling, highly-optimized
1721 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1722 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1723 `configure' enable building these extra libraries. The shared library is
1724 built by default when using both ELF and GNU ld. When shared libraries
1725 are enabled, the new library `-ldl' is available for arbitrary run-time
1726 loading of shared objects; its interface is defined in <dlfcn.h>. The
1727 new header file <link.h> gives access to the internals of the run-time
1728 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1729 application of same name on other systems and it provides information
1730 about dynamically linked binaries.
1732 * The C library now provides the run-time support code for profiling
1733 executables compiled with `-pg'. Programs can control the profiling code
1734 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1735 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1736 the support for this file format was contributed by David Mosberger-Tang.
1738 * The math code has been replaced with a math library based on fdlibm from
1739 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1740 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1741 functions. The math functions now reside in a separate library, so
1742 programs using them will need to use `-lm' their linking commands.
1744 * John C. Bowman contributed optimized ix87 assembler inline functions.
1746 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1747 mechanism similar to that found in Solaris 2. This is now used for the
1748 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1749 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1750 file controls what services are used for each individual database. This
1751 works by loading shared libraries with names specified in `nsswitch.conf',
1752 so service modules can be changed or added at any time without even
1753 relinking any program. Currently there are the file, db, and NIS based
1754 NSS services available.
1756 * The new functions `strtoq' and `strtouq' parse integer values from
1757 strings, like `strtol' and `strtoul', but they return `long long int' and
1758 `unsigned long long int' values, respectively (64-bit quantities).
1760 * The new functions `strtof' and `strtold' parse floating-point values from
1761 strings, like `strtod', but they return `float' and `long double' values,
1762 respectively (on some machines `double' and `long double' are the same).
1764 * Ulrich Drepper has contributed new implementations of the floating-point
1765 printing and reading code used in the `printf' family of functions and
1766 `strtod', `strtof', and `strtold'. These new functions are perfectly
1767 accurate, and much faster than the old ones.
1769 * The implementation of the POSIX locale model was completely rewritten by
1770 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1771 to compile the POSIX locale definition.
1773 * The former dummy implementations of the strcoll and strxfrm function are
1774 now replaced by fully functional code contributed by Ulrich Drepper. The
1775 collation information comes from the POSIX locale definitions.
1777 * The new header <langinfo.h> defines an interface for accessing
1778 various locale-dependent data (using the locale chosen with `setlocale').
1780 * Ulrich Drepper has contributed a new suite of functions for operation on
1781 wide-character and multibyte-character strings, in <wchar.h>;
1782 and classification and case conversion of wide characters, in <wctype.h>.
1783 These new functions are conforming to the ISO C, Amendement 1 specification.
1785 * There is now a second implementation of the standard I/O library available.
1786 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1787 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1789 * You can now use positional parameter specifications in format strings
1790 for the `printf' and `scanf' families of functions. For example,
1791 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1792 ``Number 6, Mr Jones''. This is mainly useful when providing different
1793 format strings for different languages, whose grammars may dictate
1794 different orderings of the values being printed. To support this
1795 feature, the interface for `register_printf_handler' has changed; see
1796 the header file <printf.h> for details.
1798 * The `printf' and `scanf' families of functions now understand a new
1799 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1800 to group numbers as indicated by the locale; for `scanf' and friends, this
1801 says to accept as valid only a number with all the proper grouping
1802 separators in the right places. In the default "C" locale, numbers are
1803 not grouped; but locales for specific countries will define the usual
1804 conventions (i.e. separate thousands with `,' in the US locale).
1806 * The pgrp functions have been regularized, slightly incompatibly but much
1807 less confusingly. The core functions are now `getpgid' and `setpgid',
1808 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1809 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1810 provided for compatibility. There is no longer an incompatible `getpgrp'
1811 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1813 * The new header file <fts.h> and suite of functions simplify programs that
1814 operate on directory trees. This code comes from 4.4 BSD.
1816 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1817 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1818 NSS scheme used in glibc.
1820 * There is a new malloc debugging hook `__memalign_hook'.
1822 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1823 `unsigned int' in <sys/types.h>. These are for compatibility only and
1824 their use is discouraged.
1826 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1827 done differently, so that it works even without GNU ld.
1829 * New function `euidaccess' checks allowed access to a file like `access',
1830 but using the effective IDs instead of the real IDs.
1832 * The time zone data files have been updated for the latest and greatest
1833 local time conventions of the countries of the world.
1835 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
1836 see <dirent.h>.
1838 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
1839 for formatting floating-point numbers. They are provided only for
1840 compatibility; new programs should use `sprintf' instead. There are
1841 also equivalent function for the `long double' floating-point type and
1842 all functions also exist in a reentrant form.
1844 * The new auxiliary library `-lutil' from 4.4 BSD contains various
1845 functions for maintaining the login-record files (primarily of use to
1846 system programs such as `login'), and convenient functions for
1847 allocating and initializing a pseudo-terminal (pty) device.
1849 * Ulrich Drepper has contributed new support for System V style
1850 shared memory and IPC on systems that support it.
1852 * Ulrich Drepper has contributed several miscellaneous new functions found
1853 in System V: The `hsearch' family of functions provide an effective
1854 implementation of hash tables; `a64l' and `l64a' provide a very simple
1855 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1856 number generator.
1858 * Ulrich Drepper has contributed new reentrant counterparts for the
1859 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1861 * Ulrich Drepper has contributed new, highly-optimized versions of several
1862 string functions for the i486/Pentium family of processors.
1864 * Ulrich Drepper has updated the Linux-specific code, based largely
1865 on work done in Hongjiu Lu's version of GNU libc for Linux.
1866 The GNU library now supports Linux versions 2.0.10 and later,
1867 using the ELF object file format (i[3456]86-*-linux).
1869 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1871 * David Mosberger-Tang and Richard Henderson have ported the C library
1872 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
1873 dynamic linking support for ELF/Alpha.
1875 * Richard Henderson contributed several Alpha optimized assembler function
1876 for arithmetic and string handling.
1878 * Ulrich Drepper has contributed a new set of message catalog functions to
1879 support multiple languages using the <libintl.h> interface, for use with
1880 his new package GNU gettext. Translation volunteers have contributed
1881 catalogs of the library's messages in Spanish, German, and Korean.
1883 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1884 program and the `catgets' function for reading the catalog files it
1885 creates. (The <libintl.h> interface is preferred; we include the
1886 <nl_types.h> interface using `catgets' only for source compatibility with
1887 programs already written to use it.)
1889 * New header file <values.h> gives SVID-compatible names for <limits.h>
1890 constants.
1892 * Various new macros, declarations, and small header files for compatibility
1893 with 4.4 BSD.
1895 * New function `group_member' is a convenient way to check if a process has
1896 a given effective group ID.
1898 * When using GCC 2.7 and later, the socket functions are now declared in a
1899 special way so that passing an argument of type `struct sockaddr_in *',
1900 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
1901 `struct sockaddr *' type, does not generate a type-clash warning.
1903 * New function `error' declared in header file <error.h> is a convenient
1904 function for printing error messages and optionally exiting; this is the
1905 canonical function used in GNU programs. The new functions `err', `warn',
1906 and friends in header file <err.h> are the canonical 4.4 BSD interface for
1907 doing the same thing.
1909 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
1910 POSIX.2 `glob' function to do ~ and {...} expansion.
1912 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
1913 `clearenv' which is used in POSIX.9 is also available.
1915 * New function `getsid' returns session ID number on systems that support it.
1917 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
1918 files <db.h> and <mpool.h> provide a rich set of functions for several
1919 types of simple databases stored in memory and in files, and <ndbm.h> is
1920 an old `ndbm'-compatible interface using the `db' functions. Link with
1921 `-ldb' to get these functions.
1923 * New macro `strdupa' copies a string like `strdup', but uses local stack
1924 space from `alloca' instead of dynamic heap space from `malloc'.
1926 * New function `strnlen' is like `strlen' but searches only a given maximum
1927 number of characters for the null terminator. `stpncpy', `strndup' and
1928 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1929 function.
1931 * New function `statfs' in header <sys/statfs.h>.
1933 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1934 provide convenient functions for operating on blocks of null-terminated
1935 strings.
1937 * A new suite of functions in <utmp.h> handle all the details of reading
1938 and writing the utmp file.
1940 * An implementation of the NIS/YP(tm) based NSS service was contributed by
1941 Thorsten Kukuk.
1943 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
1944 completely POSIX compliant and also implemented the extended functionality
1945 to handle alternate digit representation and alternate era date formats.
1947 * Ulrich Drepper provided an implementation of the `strptime' function
1948 defined in XPG4.2 which transforms a string into a `struct tm' value.
1950 * Paul Eggert provided the tzselect shell script as part of the timezone
1951 code. The shell script makes it easy to select the correct timezone
1952 specification.
1954 * The implementation of the malloc family of functions is completely replaced
1955 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
1956 The implementation uses the mmap function (if available) and it is
1957 optimized for the use in multi threaded programs.
1959 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
1960 functions. This new functionality is usable by specifying a special
1961 salt string and it is compatible with implementation on *BSD systems.
1963 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
1964 `getsubopt' to handle second level command line options, `bsd_signal'
1965 to access BSD style `signal' functionality, the obsolete `regexp' style
1966 expression matcher.
1968 * the `lchown' function is available on system which support this
1969 functionality.
1971 * The implementation of the shadow password handling function was contributed
1972 by Ulrich Drepper.
1974 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
1976 * POSIX.1g support was added. The <sys/select.h> header is available,
1977 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
1978 implementation of `getaddrinfo'.
1979 \f
1980 Version 1.09
1982 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
1984 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
1985 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
1987 * The new function `daemon' from 4.4 BSD is useful for server programs that
1988 want to put themselves in the background.
1990 * Joel Sherrill has contributed support for several standalone boards that
1991 run without an operating system.
1993 * `printf', `scanf' and friends now accept a `q' type modifier for long
1994 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
1996 * All of the code taken from BSD (notably most of the math and networking
1997 routines) has been updated from the BSD 4.4-Lite release.
1999 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
2001 * The new functions `getdomainname' and `setdomainname' fetch or change the
2002 YP/NIS domain name. These are system calls which exist on systems which
2003 have YP (aka NIS).
2005 * The time zone data files have been updated for the latest international
2006 conventions.
2008 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
2009 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
2010 \f
2011 Version 1.08
2013 * The C library now includes support for Sun RPC, from Sun's free
2014 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
2015 are included. (There is still no support for YP.)
2017 * Tom Quinn has contributed a port of the C library to SGI machines running
2018 Irix 4 (mips-sgi-irix4).
2020 * The new `lockf' function is a simplified interface to the locking
2021 facilities of `fcntl', included for compatibility.
2023 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
2025 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
2027 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
2028 compatibility.
2030 * The error message printed by `assert' for a failed assertion now includes
2031 the name of the program (if using GNU ld) and the name of the calling
2032 function (with versions of GCC that support this).
2034 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
2036 * The library now includes the <sys/mman.h> header file and memory
2037 management functions `mmap', `munmap', `mprotect', `msync', and
2038 `madvise', on systems that support those facilities.
2040 * The interface for `mcheck' has changed slightly: the function called to
2041 abort the program when an allocation inconsistency is detected now takes
2042 an argument that indicates the type of failure. The new function
2043 `mprobe' lets you request a consistency check for a particular block at
2044 any time (checks are normally done only when you call `free' or `realloc'
2045 on a block).
2047 * It is now possible to easily cross-compile the C library, building on one
2048 system a library to run on another machine and/or operating system. All
2049 you need to do is set the variable `HOST_CC' in `configparms' to the
2050 native compiler for programs to run on the machine you are building on (a
2051 few generator programs are used on Unix systems); set `CC' to the
2052 cross-compiler.
2054 * The new function `fexecve' (only implemented on the GNU system) executes
2055 a program file given a file descriptor already open on the file.
2056 \f
2057 Version 1.07
2059 * Brendan Kehoe has contributed most of a port to the DEC Alpha
2060 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
2062 * You can set the variable `libprefix' in `configparms' to specify a prefix
2063 to be prepended to installed library files; this makes it easy to install
2064 the GNU C library to be linked as `-lgnuc' or whatever.
2066 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
2067 copies a limited number of characters from a string, and returns the
2068 address of the last character written.
2070 * You no longer need to check for whether the installed `stddef.h' is
2071 compatible with the GNU C library. configure now checks for you.
2073 * You can now define a per-stream `fileno' function to convert the
2074 stream's cookie into an integral file descriptor.
2076 * ``malloc (0)'' no longer returns a null pointer. Instead, it
2077 allocates zero bytes of storage, and returns a unique pointer which
2078 you can pass to `realloc' or `free'. The behavior is undefined if
2079 you dereference this pointer.
2081 * The C library now runs on Sony NEWS m68k machines running either
2082 NewsOS 3 or NewsOS 4.
2084 * The new `syscall' function is a system-dependent primitive function
2085 for invoking system calls. It has the canonical behavior on Unix
2086 systems, including unreliable return values for some calls (such as
2087 `pipe', `fork' and `getppid').
2089 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
2090 to `EAGAIN', which is the preferred name. On systems whose kernels
2091 use two distinct codes, the C library now translates EWOULDBLOCK to
2092 EAGAIN in every system call function.
2093 \f
2094 Version 1.06
2096 * The GNU C Library Reference Manual is now distributed with the library.
2097 `make dvi' will produce a DVI file of the printed manual.
2098 `make info' will produce Info files that you can read on line using C-h i
2099 in Emacs or the `info' program.
2100 Please send comments on the manual to bug-glibc-manual@gnu.org.
2102 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
2104 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
2106 * Jason Merrill has contributed a port to the Sequent Symmetry running
2107 Dynix version 3 (i386-sequent-dynix).
2109 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
2110 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
2112 * New function `memory_warnings' lets you arrange to get warnings when
2113 malloc is running out of memory to allocate, like Emacs gives you.
2115 * The C library now contains the relocating allocator used in Emacs 19 for
2116 its editing buffers. This allocator (ralloc) minimizes allocation
2117 overhead and fragmentation by moving allocated regions around whenever it
2118 needs to. You always refer to a ralloc'd region with a "handle" (a
2119 pointer to a pointer--an object of type `void **').
2121 * There is a new `printf' format: `%m' gives you the string corresponding
2122 to the error code in `errno'.
2124 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
2125 or `%[' conversion, but instead of filling in a fixed-sized buffer you
2126 pass, the `a' modifier says to fill in a `char **' you pass with a
2127 malloc'd string.
2129 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
2130 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
2131 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
2133 * `mkstemp' is a traditional Unix function to atomically create and open a
2134 uniquely-named temporary file.
2135 \f
2136 Version 1.05
2138 * The standard location for the file that says what the local timezone is
2139 has changed again. It is now `/usr/local/etc/localtime' (or more
2140 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
2142 * The distribution no longer contains any files with names longer than 14
2143 characters.
2145 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
2146 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
2148 * New functions `ttyslot' and `syslog' from 4.4 BSD.
2149 \f
2150 Version 1.04
2152 * The configuration process has changed quite a bit. The `configure'
2153 script is now used just like the configuration scripts for other GNU
2154 packages. The `sysdeps' directory hierarchy is much rearranged.
2155 The file `INSTALL' explains the new scheme in detail.
2157 * The header files no longer need to be processed into ANSI C and
2158 traditional C versions. There is just one set of files to install, and
2159 it will work with ANSI or old C compilers (including `gcc -traditional').
2161 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
2162 MIPS DECStation running Ultrix 4.
2164 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
2165 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
2166 made itself into a shared library.
2168 * Yet further improved support for the i386, running 4.3 BSD-like systems
2169 (such as Mach 3 with the Unix single-server), or System V.
2171 * New function `strncasecmp' to do case-insensitive string comparison
2172 with limited length.
2174 * New function `strsep' is a reentrant alternative to `strtok'.
2176 * New functions `scandir' and `alphasort' for searching directories.
2178 * New function `setenv' is a better interface to `putenv'.
2180 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
2181 function for traversing a directory tree.
2183 * The GNU obstack package is now also part of the C library.
2184 The new function `open_obstack_stream' creates a stdio stream that
2185 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
2186 formatted output directly to an obstack.
2188 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
2189 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
2191 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
2193 * The new functions `strfry' and `memfrob' do mysterious and wonderful
2194 things to your strings.
2196 * There are some new test programs: test-fseek, testmb, and testrand.
2198 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
2199 These ports are not finished, but are a good starting place for really
2200 supporting those systems.
2202 * `/etc/localtime' is now the standard location for the file that says what
2203 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
2204 This follows the general principle that `/etc' is the place for all local
2205 configuration files.
2207 * The C library header files now use `extern "C"' when used by the C++
2208 compiler, so the C library should now work with C++ code.
2210 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
2211 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
2212 in <strings.h>.)
2214 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
2215 function which uses the `merge sort' algorithm, and is said to be
2216 significantly faster than the old GNU `qsort' function. Merge sort is
2217 now the standard `qsort' function. The new algorithm can require a lot
2218 of temporary storage; so, the old sorting function is called when the
2219 required storage is not available.
2221 * The C library now includes Michael Glad's Ultra Fast Crypt, which
2222 provides the Unix `crypt' function, plus some other entry points.
2224 * The code and header files taken from 4.4 BSD have been updated with the
2225 latest files released from Berkeley.
2226 \f
2227 ----------------------------------------------------------------------
2228 Copyright information:
2230 Copyright (C) 1992-2013 Free Software Foundation, Inc.
2232 Permission is granted to anyone to make or distribute verbatim copies
2233 of this document as received, in any medium, provided that the
2234 copyright notice and this permission notice are preserved,
2235 thus giving the recipient permission to redistribute in turn.
2237 Permission is granted to distribute modified versions
2238 of this document, or of portions of it,
2239 under the above conditions, provided also that they
2240 carry prominent notices stating who last changed them.
2241 \f
2242 Local variables:
2243 version-control: never
2244 fill-column: 76
2245 End: