* config.h.in: Remove HAVE_SUBTRACT_LOCAL_LABELS.

* configure.in: Remove test for support for subtracting local labels.

* stdio-common/vfprintf.c: Remove test of
HAVE_SUBTRACT_LOCAL_LABELS.

* configure.in: If init_array/fini_array support is not available,

bail out.
* config.h.in: Remove trace of optional init_array/fini_array support.
* config.make.in: Likewise.
* csu/elf-init.c: Likewise.
* dlfcn/dlfcn.c: Likewise.
* elf/soinit.c: Likewise.
* sysdeps/ia64/elf/initfinit.c: Likewise.

* SUPPORTED (SUPPORTED-LOCALES): Fix typo in si_LK line.

(SUPPORTED-LOCALES): Fix typo in si_LK line.

* sysdeps/i386/configure.in (libc_mtune_example): Variable removed.

* sysdeps/i386/configure: Regenerated.

[BZ #1089]

2005-11-04  Roland McGrath  <roland@redhat.com>
[BZ #1089]
* configure.in: Change order of add-on sysdeps directories,
so they are interleaved with main sysdeps directories.
* configure: Regenerated.

* NEWS: Synch with 2.3 branch updates.

2005-11-03  Roland McGrath  <roland@redhat.com>

* NEWS: Synch with 2.3 branch updates.

* sunrpc/svc.c (svc_getreq_poll): Fix inefficient loop test.

(svc_getreq_poll): Fix inefficient loop test.

* sunrpc/svc.c (svc_getreqset): Use ffsl instead of ffs on fd_mask,

make sure constant is long.

[BZ #1548]

2005-11-03  Roland McGrath  <roland@redhat.com>
[BZ #1548]
* sunrpc/svc.c (svc_getreqset): Use ffsl instead of ffs on fd_mask.
From Jay Lan <jlan@engr.sgi.com>.

[BZ #1548]

2005-11-03  Roland McGrath  <roland@redhat.com>
[BZ #1548]
* sunrpc/svc.c (svc_getreqset): Use ffsl instead of ffs on fd_mask.
From Jay Lan <jlan@engr.sgi.com>.

[BZ #1774]

2005-11-03  Ulrich Drepper  <drepper@redhat.com>
[BZ #1774]
* sysdeps/posix/getaddrinfo.c (gaih_inet): Don't use simple
gethostbyname2 lookup if AI_V4MAPPED|AI_ALL is set.

* sysdeps/posix/getaddrinfo.c (gaih_inet): Avoid alloca when possible
while looking for scope delimiter.
Some pretty printing.

* sysdeps/powerpc/powerpc64/Makefile

(sysdep_routines, elide-routines.os): Add hp-timing.
* sysdeps/powerpc/powerpc64/hp-timing.c: New file.
* sysdeps/powerpc/powerpc64/hp-timing.h: New file.
* sysdeps/unix/sysv/linux/powerpc/get_clockfreq.c: New file.

* resolv/res_init.c (__res_iclose): New function.  Broken out of

res_nclose.  Take addition parameter which determines whether
addresses should be freed.
(res_nclose): Call __res_iclose.
(res_thread_freeres): Likewise.
* resolv/res_data.c (res_close): Call __res_iclose.
* resolv/res_libc.c (res_init): No need to separately free the
addresses.
(__res_maybe_init): Likewise.
* resolv/res_send.c: Use __res_iclose instead of res_nclose.
* resolv/Versions [GLIBC_PRIVATE]: Add __res_iclose.
* include/resolv.h: Declare __res_iclose.
Add libc_hidden_proto for __res_iclose.
* hesiod/hesiod.c (__hesiod_res_set): No need to free name server
addresses here again.

* debug/execinfo.h: Change backtrace_symbols_fd comment.

[BZ #1579]

2005-10-31  Ulrich Drepper  <drepper@redhat.com>
[BZ #1579]
* debug/execinfo.h: Change backtrace+symbols_fd comment.

Change backtrace+symbols_fd comment.

* sysdeps/ia64/fpu/libm-symbols.h (WEAK_LIBM_ENTRY): Add "__"

prefix to LOCAL_LIBM_ENTRY.
(WEAK_LIBM_END): Add "__" prefix to LOCAL_LIBM_END.

* elf/dl-conflict.c (_dl_resolve_conflicts): Use _dl_debug_printf

instead of _dl_printf to print conflict processing debug message.
Reported by John Reiser <jreiser@BitWagon.com>.

2005-10-26  Jakub Jelinek  <jakub@redhat.com>

* elf/dl-conflict.c (_dl_resolve_conflicts): Use _dl_debug_printf
instead of _dl_printf to print conflict processing debug message.
Reported by John Reiser <jreiser@BitWagon.com>.

* misc/hsearch_r.c (hsearch_r): Remove duplicate test.

Patch by Chris Caputo <ccaputo@alt.net>.

2005-10-28  Kaz Kojima  <kkojima@rr.iij4u.or.jp>

* sysdeps/unix/sh/sysdep.S: Remove unnecessary weak_alias.
* sysdeps/unix/sysv/linux/sh/socket.S: Honor NO_WEAK_ALIAS.

* nis/nss_nis/nis-publickey.c (_nss_nis_getpublickey): Fix off

by one error.

(_nss_nis_getpublickey): Fix off by one error.

[BZ #721]

2005-10-24  Roland McGrath  <roland@redhat.com>
* sysdeps/unix/sysv/linux/x86_64/sem_trywait.S: Remove unnecessary
versioned_symbol use.

[BZ #721]

[BZ #1534]

2005-10-24  Roland McGrath  <roland@redhat.com>
[BZ #1534]
* include/string.h: Use libc_hidden_proto for strnlen,
not libc_hidden_builtin_proto.

[BZ #1534]

2005-10-24  Roland McGrath  <roland@redhat.com>
[BZ #1534]
* include/string.h: Use libc_hidden_proto for strnlen,
not libc_hidden_builtin_proto.

* rt/mqueue.h: Cleanups.

Cleanups.

copyright update

[BZ #1254]

2005-10-22  Roland McGrath  <roland@redhat.com>
[BZ #1254]
* sysdeps/mach/hurd/getpeername.c (__getpeername): Fix last change.
From Samuel Thibault <samuel.thibault@ens-lyon.org>.

[BZ #1252, BZ #1498]

2005-10-17  Thomas Schwinge  <tschwinge@gnu.org>
[BZ #1252]
* hurd/intr-msg.c (_hurd_intr_rpc_mach_msg): Don't use ?: as lvalue.
* sysdeps/mach/hurd/ioctl.c (__ioctl): Likewise.

[BZ #1498]

[BZ #1252]

2005-10-17  Thomas Schwinge  <tschwinge@gnu.org>
[BZ #1252]
* hurd/intr-msg.c (_hurd_intr_rpc_mach_msg): Don't use ?: as lvalue.
* sysdeps/mach/hurd/ioctl.c (__ioctl): Likewise.

* iconvdata/ibm1364.h (__ucs4_to_ibm1364sb): Fix one mapping.

* iconvdata/ibm1388.h (__ucs4_to_ibm1388sb): Likewise.
* iconvdata/testdata/IBM1364: Add missing valid input.
* iconvdata/testdata/IBM1388: Likewise.
* iconvdata/testdata/IBM1364..UTF8: Adjust appropriately.
* iconvdata/testdata/IBM1388..UTF8: Likewise.
Patch by Masahide Washizawa <washi@jp.ibm.com>.

* sysdeps/alpha/remqu.S: Return the correct result when the same

dividend and divisor are provided, and they're negative numbers.
* sysdeps/alpha/divqu.S: Likewise.

* sysdeps/unix/sysv/linux/powerpc/powerpc32/ucontext_i.h (TESTS):

Define.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/ucontext_i.h (TESTS):
Likewise.

..

2005-10-19  Ulrich Drepper  <drepper@redhat.com>

* iconvdata/Makefile (modules): Add IBM1364, IBM1371, IBM1388, IBM1390,
and IBM1399.
(distribute): Add ibm1364.c, ibm1364.h, ibm1371.c, ibm1371.h,
ibm1388.c, ibm1388.h, ibm1390.c, ibm1390.h, ibm1399.c, and ibm1399.h.
* iconvdata/TESTS: Add entries for IBM1364, IBM1371, IBM1388, IBM1390,
and IBM1399.
* iconvdata/gconv-modules: Likewise.
* iconvdata/ibm1364.c: New file.
* iconvdata/ibm1364.h: New file.
* iconvdata/ibm1371.c: New file.
* iconvdata/ibm1371.h: New file.
* iconvdata/ibm1388.c: New file.
* iconvdata/ibm1388.h: New file.
* iconvdata/ibm1390.c: New file.
* iconvdata/ibm1390.h: New file.
* iconvdata/ibm1399.c: New file.
* iconvdata/ibm1399.h: New file.
* iconvdata/testdata/IBM1364: New file.
* iconvdata/testdata/IBM1364..UTF8: New file.
* iconvdata/testdata/IBM1371: New file.
* iconvdata/testdata/IBM1371..UTF8: New file.
* iconvdata/testdata/IBM1388: New file.
* iconvdata/testdata/IBM1388..UTF8: New file
* iconvdata/testdata/IBM1390: New file.
* iconvdata/testdata/IBM1390..UTF8: New file.
* iconvdata/testdata/IBM1399: New file.
* iconvdata/testdata/IBM1399..UTF8: New file.
Original patch by Masahide Washizawa <washi@jp.ibm.com>.

iconv module for IBM1364.

[BZ #721]

2005-10-17  Roland McGrath  <roland@redhat.com>
* elf/dl-load.c (MAP_COPY): When undefined, define to
MAP_PRIVATE|MAP_DENYWRITE instead of just MAP_PRIVATE.
(_dl_map_object_from_fd): Don't use MAP_DENYWRITE explicitly.

[BZ #721]
[BZ #721]
[BZ #721]
[BZ #721]
[BZ #721]
[BZ #721]
[BZ #721]
[BZ #721]

2005-10-17  Roland McGrath  <roland@redhat.com>

* elf/dl-load.c (MAP_COPY): When undefined, define to
MAP_PRIVATE|MAP_DENYWRITE instead of just MAP_PRIVATE.
(_dl_map_object_from_fd): Don't use MAP_DENYWRITE explicitly.

* sysdeps/unix/sysv/linux/s390/s390-32/ucontext_i.h (SC_STSZ, TESTS):

Define.
* sysdeps/unix/sysv/linux/s390/s390-64/ucontext_i.h (SC_STSZ, TESTS):
Likewise.

allow EACCES errors when opening /proc for now.

* libio/oldfileops.c (_IO_old_file_xsputn): Fix last patch.

Return EOF not 0.

* sysdeps/unix/sysv/linux/readonly-area.c (__readonly_area): Also
allow EACCES errors when opening /rpco for now.

* wctype/wcfuncs.c: Don't use expensive wide char lookups in isw*
functions if character is in ASCII range.
* wctype/wcfuncs_l.c: Likewise.

Don't use expensive wide char lookups in isw* functions if character is in ASCII range.

* abi-tags (.*-.*-knetbsd.*-gnu.*): New match, with ABI value 4.

* elf/cache.c (print_entry): Match the kNetBSD ABI tag.

* sysdeps/generic/bits/mman.h

[__USE_GNU] (MREMAP_MAYMOVE, REMAP_FIXED): New macros.

2005-10-16  Alfred M. Szmidt  <ams@gnu.org>

* sysdeps/generic/bits/mman.h
[__USE_GNU] (MREMAP_MAYMOVE, REMAP_FIXED): New macros.

* sysdeps/unix/sysv/linux/sh/makecontext.S: New file.

* sysdeps/unix/sysv/linux/sh/sh3/getcontext.S: New file.
* sysdeps/unix/sysv/linux/sh/sh4/getcontext.S: New file.
* sysdeps/unix/sysv/linux/sh/sh3/setcontext.S: New file.
* sysdeps/unix/sysv/linux/sh/sh4/setcontext.S: New file.
* sysdeps/unix/sysv/linux/sh/sh3/swapcontext.S: New file.
* sysdeps/unix/sysv/linux/sh/sh4/swapcontext.S: New file.
* sysdeps/unix/sysv/linux/sh/sh3/ucontext_i.h: New file.
* sysdeps/unix/sysv/linux/sh/sh4/ucontext_i.h: New file.
* sysdeps/unix/sysv/linux/sh/sys/ucontext.h: Removed.
* sysdeps/unix/sysv/linux/sh/sh3/sys/ucontext.h: New file.
* sysdeps/unix/sysv/linux/sh/sh4/sys/ucontext.h: New file.

[BZ #1228]

..
2005-09-13  Jakub Jelinek  <jakub@redhat.com>

[BZ #1228]
* include/limits.h (LLONG_MIN, LLONG_MAX, ULLONG_MAX): Make sure these
are defined for -D_GNU_SOURCE or -D_ISOC99_SOURCE even when not
-std=c99.

(LLONG_MIN, LLONG_MAX, ULLONG_MAX): Make sure these are defined for -D_GNU_SOURCE or -D_ISOC99_SOURCE even when not -std=c99.

* sysdeps/unix/sysv/linux/sh/bits/mman.h: Define MREMAP_FIXED.

[BZ #1249, BZ #1252]

2005-08-05  Alfred M. Szmidt  <ams@gnu.org>
[BZ #1252]
* sysdeps/mach/hurd/setitimer.c (restart_itimer): Move static fn
forward decl out of function body.
* sysdeps/mach/hurd/profil.c: Likewise.

[BZ #1249]

[BZ #1350]

bz tag
[BZ #1350]

[BZ #1254]

* sysdeps/mach/hurd/getpeername.c (__getpeername): Respect *LEN
byte limit when setting ADDR->sa_family.
Reported by Samuel Thibault <samuel.thibault@ens-lyon.org>.

[BZ #1253]

* sysdeps/mach/hurd/dl-sysdep.h
[SHARED] (DL_ARGV_NOT_RELRO): New macro.

[BZ #1253]

[BZ #1253]

2005-10-16  Roland McGrath  <roland@frob.com>
[BZ #1253]
* sysdeps/mach/hurd/i386/init-first.c (init): Make cast kosher.
(_hurd_stack_setup): Don't declare with arguments and ellipsis.
Use __builtin_frame_address and __builtin_return_address.
(_dl_init_first): Likewise.

* sysdeps/mach/hurd/i386/init-first.c (_cthread_init_routine): Declare
as weak extern.
(init): Check for it being undefined.

[BZ #1076, BZ #1250, BZ #1251]

BZ tags
2005-08-05  Roland McGrath  <roland@frob.com>
[BZ #1251]
[BZ #1250]
[BZ #1076]

[BZ #1394]

bz tag
[BZ #1394]

2005-10-16  Daniel Jacobowitz  <dan@codesourcery.com>

    Roland McGrath  <roland@redhat.com>

* Makerules [module-names] (extra-modules-build): New variable.
($(extra-modules-build:%=$(objpfx)%.so)): New static pattern rule.
Depend on libc.so and libc_nonshared.a.
* dlfcn/Makefile ($(test-modules)): Remove static pattern rule.
* elf/Makefile (modules-names-nobuild): New variable, add filtmod1.
($(test-modules)): Remove static pattern rule.

* include/dirent.h: Include <stdbool.h>.

* sysdeps/mach/hurd/fdopendir.c: Include <fcntl.h>.
(fdopendir): Correct argument to _hurd_fd_get().
* sysdeps/mach/hurd/opendir.c (__opendir): Remove stray `}'.

2005-10-15  Thomas Schwinge  <tschwinge@gnu.org>

* include/dirent.h: Include <stdbool.h>.
* sysdeps/mach/hurd/fdopendir.c: Include <fcntl.h>.
(fdopendir): Correct argument to _hurd_fd_get().
* sysdeps/mach/hurd/opendir.c (__opendir): Remove stray `}'.

[BZ #1224]

2005-08-20  Paul Eggert  <eggert@cs.ucla.edu>
[BZ #1224]
* posix/regcomp.c (init_word_char, duplicate_node_closure,
fetch_token, peek_token_bracket, build_range_exp,
build_collating_symbol): Remove forward decls; no longer needed
now that we use prototypes.

[BZ #1221]

* posix/regex_internal.h: Remove last traces of
RE_NO_INTERNAL_PROTOTYPES.

[BZ #968]

* string/strxfrm_l.c (STRXFRM): Fix exit conditions of two loops.

* sysdeps/unix/fdopendir.c (fdopendir): Make sure descriptor

allows reading.

* wcsmbs/tst-mbrtowc2.c: Use de_DE.UTF-8 instead of en_US.UTF-8.

* wcsmbs/Makefile: Define tst-mbrtowc2-ENV.

* posix/regexec.c: Finish prototyping of static functions.

* posix/regex_internal.c: Likewise.

[BZ #119]

2005-10-15  Ulrich Drepper  <drepper@redhat.com>
[BZ #119]
* locales/es_AR: Fix thousands_sep and grouping.

[BZ #451]

* locales/rw_RW: New file.
* SUPPORTED (SUPPORTED-LOCALES): Add rw_RW.UTF-8.

[BZ #367]

* locales/si_LK: New file.
* SUPPORTED (SUPPORTED-LOCALES): Add si_LK.UTF-8.

[BZ #297]

* locales/fi_FI: Change date_fmt.

Change date_fmt.

* sysdeps/mach/hurd/opendir.c (_hurd_fd_opendir): New function, broken

out of ...
(__opendir): ... here.  Call it.
* sysdeps/mach/hurd/fdopendir.c: New file.

Comment fix.

[BZ #71, BZ #305]

* locales/te_IN: Fix noexpr, replace yY with nN.
[BZ #305]
* locales/bn_BD: Add yY and nN to yesexpr and noexpr respectively.
* locales/ml_IN: Likewise.
* locales/ta_IN: Likewise.
* locales/kw_GB: Add yY to yesexpr.
* locales/oc_FR: Likewise.

* locales/bn_IN: Use copy "bn_BD" in LC_MESSAGES definition.

[BZ #71]
[BZ #305]
* locales/ar_EG: Add yY and nN to yesexpr and noexpr respectively.
Define yesstr and nostr.
* locales/ar_AE: Use copy "ar_EG" in LC_MESSAGES definition.
* locales/ar_BH: Likewise.
* locales/ar_DZ: Likewise.
* locales/ar_IN: Likewise.
* locales/ar_IQ: Likewise.
* locales/ar_JO: Likewise.
* locales/ar_KW: Likewise.
* locales/ar_LB: Likewise.
* locales/ar_LY: Likewise.
* locales/ar_MA: Likewise.
* locales/ar_OM: Likewise.
* locales/ar_QA: Likewise.
* locales/ar_SA: Likewise.
* locales/ar_SD: Likewise.
* locales/ar_SY: Likewise.
* locales/ar_TN: Likewise.
* locales/ar_YE: Likewise.

[BZ #865]

* math/tgmath.h: Correctly determine result type for
__TGMATH_BINARY_REAL_ONLY,
__TGMATH_TERNARY_FIRST_SECOND_REAL_ONLY,
__TGMATH_TERNARY_REAL_ONLY, and __TGMATH_BINARY_REAL_IMAG.

2005-09-17  Andreas Jaeger  <aj@suse.de>

[BZ #865]
* math/test-tgmath-int.c: New file.
* math/Makefile (tests): Add test-tgmath-int.

2005-10-14  Ulrich Drepper  <drepper@redhat.com>

[BZ #804]

* malloc/tst-mtrace.sh: Work around for bootstraping.

* locale/programs/ld-collate.c (collate_output): Fix counting of

elements.  Don't limit table size.  Use correct secondary hash
function.
* locale/localeinfo.h (LIMAGIC): Change value returned for LC_COLLATE.
* posix/fnmatch_loop.c: Adjust for changed secondary hash function.
* posix/regcomp.c: Likewise.

* sysdeps/unix/sysv/linux/x86_64/ucontext_i.h (TESTS): Define.

* SUPPORTED (SUPPORTED-LOCALES): Add dz_BT.UTF-8.

[BZ #368]

* SUPPORTED (SUPPORTED-LOCALES): Add dz_BT.UTF-8.
[BZ #368]
* locales/dz_BT: New file.

* time/asctime.c (asctime_internal): Use __snprintf instead of

snprintf to avoid PLT entry.

* sysdeps/unix/opendir.c (__opendir): Pass extra argument to

__alloc_dir.
(__alloc_dir): Only close descriptor on error if new parameter is true.
* sysdeps/unix/fdopendir.c (fdopendir): Pass extra argument to
__alloc_dir.  Don't close fd on error.
* include/dirent.h (__alloc_dir): Adjust prototype.

* include/sys/mman.h (__mremap): Add ellipsis.
* malloc/memusage.c: Adjust mremap wrapper for optional additional
parameter.

[BZ #982]

* locales/ml_IN: Fix title.

* stdlib/Makefile (tests): Add tst-ucontext-off.

* stdlib/tst-ucontext-off.c: New file.
* sysdeps/unix/sysv/linux/x86_64/ucontext_i.h (TEST): Define.
* sysdeps/unix/sysv/linux/i386/ucontext_i.h (TESTS): Likewise.

[BZ #980]

* locales/yi_US: Fix title.

* locales/nl_NL: Define country_car, lang_name, lang_ab,

lang_term, and lang_lib.

[BZ #1468]

* sysdeps/unix/sysv/linux/x86_64/ucontext_i.h: Fix values for
oFPREGS, oSIGMASK, oFPREGSMEM, and oMXCSR.
Patch by Nicholas Miell <nmiell@comcast.net>.

[BZ #1460]

* time/asctime.c (asctime_internal): New function, derived from
asctime_r.  Takes additional parameter which is the buffer length.
Use snprintf instead sprintf, if it overflows, fail.
(asctime_r): Call asctime_internal with 26 as buffer length.
(asctime): Call asctime_internal with length of internal buffer.
* time/Makefile (tests): Add bug-asctime_r.
* time/bug-asctime_r.c: New file.

[BZ #1459]

* time/asctime.c (__asctime_r): Check for tm_year computation to
overflow and fail in this case.
* time/Makefile (tests): Add bug-asctime.
* time/bug-asctime.c: New file.

[BZ #1458]

2005-10-14  Ulrich Drepper  <drepper@redhat.com>
[BZ #1458]
* sysdeps/unix/sysv/linux/i386/bits/mman.h: Define MREMAP_FIXED.
* sysdeps/unix/sysv/linux/ia64/bits/mman.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/mman.h: Likewise.
* sysdeps/unix/sysv/linux/s390/bits/mman.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/mman.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/bits/mman.h: Likewise.
* misc/sys/mman.h: Add ellipsis after last parameter of mremap and
adjust leading comment.
* sysdeps/unix/sysv/linux/syscalls.list: Add pointer parameter to
mremap syscall.

[BZ #1405]

* libio/iogetdelim.c (_IO_getdelim): Fix truncation of return
value.  Avoid overflow in computation.

[BZ #1373]

2005-10-13  Ulrich Drepper  <drepper@redhat.com>
[BZ #1373]
* argp/argp.h: Remove __NTH for __argp_usage inline function.

[BZ #1248]

2005-08-26  Paul Eggert  <eggert@cs.ucla.edu>
[BZ #1248]
* posix/regex_internal.h (bitset_not, bitset_merge, bitset_not_merge,
bitset_mask, re_string_allocate, re_string_construct,
re_string_reconstruct, re_string_destruct, re_string_elem_size_at,
re_string_char_size_at, re_string_wchar_at, re_string_peek_byte_case,
re_string_fetch_byte_case, re_node_set_alloc, re_node_set_init_1,
re_node_set_init_2, re_node_set_init_copy, re_node_set_add_intersect,
re_node_set_init_union, re_node_set_merge, re_node_set_insert,
re_node_set_insert_last, re_node_set_compare, re_node_set_contains,
re_node_set_remove_at, re_dfa_add_node, re_acquire_state,
re_acquire_state_context): Remove unnecessary forward decls.
(re_string_char_size_at, re_string_wchar_at, re_string_elem_size_at):
Put __attribute at function definition, now that the function decl
has been removed.
* posix/regex_internal.c (re_string_peek_byte_case,
re_string_fetch_byte_case, re_node_set_compare, re_node_set_contains):
Likewise.

* posix/regcomp.c: Likewise.

[BZ #1231]

2005-08-23  Paul Eggert  <eggert@cs.ucla.edu>
[BZ #1231]
* posix/regex_internal.c (re_string_skip_chars, register_state,
calc_state_hash): Remove forward decls.
* posix/regexec.c (acquire_init_state_context, check_halt_node_context,
proceed_next_node, pop_fail_stack, sub_epsilon_src_nodes,
clean_state_log_if_needed): Likewise.

* posix/regex.c: No need to use K&R definitions for static functions.
* posix/regex_internal.c: Likewise.

[BZ #1466]

* sysdeps/generic/s_csqrt.c (__csqrt): For zero real part, return
principal square root.
* sysdeps/generic/s_csqrtf.c (__csqrtf): Likewise.
* sysdeps/generic/s_csqrtl.c (__csqrtl): Likewise.
* math/libm-test.inc (csqrt_test): Add test for returning
principal value.

* include/features.h: Define _POSIX_C_SOURCE to 200112 for

_XOPEN_SOURCE == 600.

* malloc/malloc.c (_int_free): Fail if block size is obviously wrong.