* Makefile (tests): Add ex13.
2000-08-22 Andreas Jaeger <aj@suse.de>
* Examples/ex13.c: New test by Kurt Garloff <garloff@suse.de>.
* Makefile (tests): Add ex13.
2000-08-12 Andreas Jaeger <aj@suse.de>
* include/features.h (__STDC_ISO_10646__): Define.
Reported by Markus Kuhn <Markus.Kuhn@cl.cam.ac.uk>.
* include/features.h (__USE_ISOC99): Define for _XOPEN_SOURCE >= 600.
* locale/langinfo.h: Define YESSTR and NOSTR also for XPG4 (but not
for revision 6 and up).
* posix/sys/types.h: Define __need_timer_t and __need_clockid_t before
including <time.h>.
* time/time.h: Allow __need_timer_t and __need_clockid_t to be defined
to get definitions of just these types.
* signal/signal.h: Define thread signal handling functions also for
POSIX95.
* sysdeps/unix/sysv/linux/bits/types.h: Define thread types also for
POSIX95.
* sysdeps/unix/sysv/linux/alpha/bits/types.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/bits/types.h: Likewise.
* sysdeps/unix/sysv/linux/mips/bits/types.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/types.h: Likewise.
* sysvipc/sys/shm.h: Define pid_t for XPG.
* wcsmbs/wchar.h: Make the various wide char string and stream
functions available for the respective XPG versions.
* internals.h: Declare __pthread_max_stacksize.
* pthread.c (__pthread_max_stacksize): New variable.
(__pthread_initialize_manager): Determine __pthread_initialize_manager
value.
* manager.c (thread_segment): Return always NULL if FLOATING_STACKS.
(pthread_allocate_stack): Allow kernel to choose stack address if
FLOATING_STACKS. This also handles variable-sized stacks.
Always allocate stack and guardoage together. Use mprotect to
change guardpage access.
* sysdeps/i386/useldt.h: Define FLOATING_STACKS and
ARCH_STACK_MAX_SIZE.
* attr.c (__pthread_attr_setstacksize): Also test value against
upper limit.
2000-08-04 Ulrich Drepper <drepper@redhat.com>
* manager.c (__pthread_nonstandard_stacks): Define only if
THREAD_SELF is not defined.
(pthread_allocate_stack): Always initialize gardaddr to a correct
value.
(pthread_handle_create): Unmap thread with one call.
(pthread_free): Remove test for initial thread before removing stack.
Unmap stack with one call.
* pthread.c (__pthread_initial_thread): Initialize p_userstack to
1 to avoid removing the stack.
2000-07-27 Jes Sorensen <jes@linuxcare.com>
* linuxthreads/sysdeps/ia64/pspinlock.c (__pthread_spin_lock): Add
load of spin lock to prime the cache before the atomic compare and
exchange operation (cmpxchg4). This avoids the spinning on the
cmpxchg4 instruction and reduces movement of the cache line back
and forth between the processors (explanation by Asis K. Mallick
from Intel). This basically makes the implementation operate the
same as the Linux kernel implementation.
* linuxthreads/shlib-versions: Use GLIBC_2_2 for Linux/ia64.
* linuxthreads/sysdeps/ia64/pspinlock.c: New file.
2000-08-02 Andreas Jaeger <aj@suse.de>
* linuxthreads/sysdeps/s390/pspinlock.c: New file.
* linuxthreads/sysdeps/s390/pt-machine.h: New file.
Patches by Martin Schwidefsky <schwidefsky@de.ibm.com>.
2000-07-27 Jes Sorensen <jes@linuxcare.com>
* sysdeps/unix/sysv/linux/ia64/fork.c: Make __libc_fork the strong
name and add weak alias for __fork.
* sysdeps/unix/sysv/linux/ia64/syscalls.list: Change llseek, pread
& pwrite to use __libc_<name> as strong names instead of
__syscall_<name>.
* include/sched.h: Add clone2 prototype.
2000-07-26 Jes Sorensen <jes@linuxcare.com>
* sysdeps/unix/sysv/linux/ia64/sysdep.h (ENTRY): Don't declare the
procedure name twice.
2000-07-27 Philip Blundell <philb@gnu.org>
* malloc/malloc.c (HAVE_MREMAP): Undo change of 1997-12-04.
* internals.h (strict __pthread_descr_struct): Add p_sem_avail.
* semaphore.c: Handle spurious wakeups.
* sysdeps/pthread/pthread.h: Add back PTHREAD_MUTX_FAST_NP as an alias
for PTHREAD_MUTEX_ADAPTIVE_NP for source code compatibility.
* pthread.c (__pthread_set_own_extricate): Use THREAD_GETMEM.
(__pthread_wait_for_restart): Likewise.
* condvar.c (pthread_cond_wait): Also check whether thread is
cancelable before aborting loop.
(pthread_cond_timedwait): Likewise.
2000-07-25 Mark Kettenis <kettenis@gnu.org>
* nss/nss_files/files-netgrp.c (strip_whitespace): New function.
(_nss_netgroup_parseline): Use strip_whitespace to strip off any
leading and trailing spaces from host, user and domain name.
2000-07-25 Jes Sorensen <jes@linuxcare.com>
* csu/defs.awk: Add support for need_endp.
2000-07-25 Mark Kettenis <kettenis@gnu.org>
* resolv/resolv.h: Remove __P from res_send_qhook and
res_send_rhook typedefs.
2000-07-25 Bruno Haible <haible@clisp.cons.org>
* intl/tst-translit.c (main): Unset OUTPUT_CHARSET.
2000-07-24 Ulrich Drepper <drepper@redhat.com>
* condvar.c: Handle spurious wakeups. [PR libc/1749].
* spinlock.h: If IMPLEMENT_TAS_WITH_CAS is defined use
* locale/programs/ld-collate.c (handle_ellipsis): Test for
duplication with generated name, not the name of the first
character.
Patch by Yong Li <yong.li@asu.edu>.
2000-07-19 Kaz Kylheku <kaz@ashi.footprints.net>
Bugfixes to the variant of the code for machines with no compare
and swap.
* spinlock.c (__pthread_alt_lock, __pthread_alt_timedlock): Wait
node was not being properly enqueued, due to failing to update
the lock->__status field.
* spinlock.c (__pthread_alt_timedlock): The oldstatus variable was
being set inappropriately, causing the suspend function to be called
with a null self pointer and crash.
2000-07-18 Kaz Kylheku <kaz@ashi.footprints.net>
* spinlock.c (__pthread_alt_lock, __pthread_alt_timedlock): Fixed
bug whereby thr field of waitnode structure would not be correctly
set unless a null self pointer is passed to the functions.
Eliminated redundant calls to thread_self().
2000-07-18 Ulrich Drepper <drepper@redhat.com>
* intl/Makefile: Make sure tst-translit is run after tst-gettext.
* locale/C-ctype.c: Add initializers for gap elements.
* locale/programs/ld-ctype.c (ctype_output): Write out index entries
for gap elements.
2000-05-05 H.J. Lu <hjl@gnu.org>
* sysdeps/ia64/pt-machine.h (__compare_and_swap): Change it to
have acquire semantics.
(__compare_and_swap_with_release_semantics): New inline
function.
(HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS): New macro.
2000-01-28 Hans Boehm <hboehm@exch.hpl.hp.com>
* manager.c: Fix the problem with signals at startup.
Change the way that thread stacks are allocated on IA64.
Clean up some of the guard page allocation stuff.
1999-12-19 H.J. Lu <hjl@gnu.org>
* internals.h (page_roundup): New.
* attr.c (__pthread_attr_setguardsize); Use page_roundup
instead of roundup.
* manager.c (pthread_allocate_stack): Make sure guardaddr is
page aligned with page_roundup if NEED_SEPARATE_REGISTER_STACK
is define.
1999-12-17 Hans Boehm <hboehm@exch.hpl.hp.com>
* manager.c (pthread_allocate_stack): Unmap the stack top
if failed to map the stack bottom.
Fix the guard page.
(pthread_free): Fix the guard page.
* pthread.c (pthread_initialize): Set rlimit correctly for
NEED_SEPARATE_REGISTER_STACK.
1999-12-16 H.J. Lu <hjl@gnu.org>
* pthread.c (__pthread_initialize_manager): Pass
__pthread_manager_thread_bos instead of
__pthread_manager_thread_tos to __clone2.
1999-12-16 H.J. Lu <hjl@gnu.org>
* manager.c (pthread_allocate_stack): Correct the calculation
of "new_thread_bottom". Remove MAP_GROWSDOWN from mmap for
stack bottom.
1999-12-13 H.J. Lu <hjl@gnu.org>
* sysdeps/ia64/pt-machine.h (__compare_and_swap): Added a stop
bit after setting ar.ccv.
1999-12-12 H.J. Lu <hjl@gnu.org>
* manager.c (pthread_allocate_stack): Make the starting
address of the stack bottom page aligned. FIXME: it may
need changes in other places.
(pthread_handle_create): Likewise.
1999-12-11 Hans Boehm <hboehm@exch.hpl.hp.com>
* manager.c (pthread_allocate_stack): Handle
NEED_SEPARATE_REGISTER_STACK.
(pthread_handle_create): Likewise.
* pthread.c (__pthread_initialize_manager): Likewise.
* sysdeps/ia64/pt-machine.h: Use r13 for thread pointer.
1999-12-02 H.J. Lu <hjl@gnu.org>
* sysdeps/ia64/pt-machine.h: New.
2000-07-12 H.J. Lu <hjl@gnu.org>
* resolv/Versions (libresolv): Add __res_hostalias to GLIBC_2.2
for _nss_dns_gethostbyname2_r in resolv/nss_dns/dns-host.c.
2000-07-12 Ulrich Drepper <drepper@redhat.com>
* wcsmbs/wcsmbsload.c (__wcsmbs_load_conv): Shut gcc up although
it is wrong.
2000-07-12 Bruno Haible <haible@clisp.cons.org>
* iconv/gconv_open.c (__gconv_open): Merge duplicated code.
2000-07-12 Bruno Haible <haible@clisp.cons.org>
* iconv/gconv_builtin.c (__gconv_get_builtin_trans): Initialize
__modname.
2000-07-12 Bruno Haible <haible@clisp.cons.org>
* iconv/gconv_open.c (__gconv_open): Initialize
result->__steps[cnt].__data.
2000-07-12 Mark Kettenis <kettenis@gnu.org>
* nss/getent.c (services_keys): Pass port number in network byte
order in call to getservbyport.
2000-07-11 Andreas Jaeger <aj@suse.de>
* stdlib/Makefile (test-canon-ARGS): Fix for building in the
source dir.
* intl/Makefile (do-gettext-test): Likewise.
* dirent/Makefile (opendir-tst1-ARGS): Likewise.
2000-07-11 Andreas Schwab <schwab@suse.de>
* Makeconfig (run-program-prefix): New rule.
(built-program-cmd): Use run-program-prefix.
2000-07-06 Ulrich Drepper <drepper@redhat.com>
* condvar.c: Implement pthread_condattr_getpshared and
pthread_condattr_setpshared.
* mutex.c: Implement pthread_mutexattr_getpshared and
pthread_mutexattr_setpshared.
* Versions: Export new functions.
* sysdeps/pthread/pthread.h: Add prototypes for new functions.
* rwlock.c (pthread_rwlockattr_init): Use PTHREAD_PROCESS_PRIVATE.
(pthread_rwlockattr_setpshared): Fail if PTHREAD_PROCESS_PRIVATE
is not selected.
pragmas. Include bp-sym.h only if _LIBC.
2000-07-04 Greg McGary <greg@mcgary.org>
* sysdeps/pthread/bits/libc-lock.h: Remove BP_SYM from
pragmas. Include bp-sym.h only if _LIBC.
pthread functions that have pointers in their return+arg signatures.
2000-06-28 Greg McGary <greg@mcgary.org>
* weaks.c: Wrap BP_SYM () around weak extern declarations of
pthread functions that have pointers in their return+arg signatures.
* sysdeps/pthread/bits/libc-lock.h: Wrap BP_SYM () around weak
extern declarations of pthread functions that have pointers in
their return+arg signatures.
* include/libc-symbols.h (weak_extern): Add extra level of expansion.
(symbol_version, default_symbol_version): Factor redundant
definitions out of conditional.
* linuxthreads/sysdeps/pthread/bits/libc-lock.h:
Wrap BP_SYM () around weak extern declarations of pthread
functions that have pointers in their return+arg signatures.
2000-06-27 Greg McGary <greg@mcgary.org>
* elf/dl-open.c (_dl_sysdep_start): Wrap weak_extern decl in BP_SYM ().
* include/libc-symbols.h (weak_extern): Add extra level of expansion.
(symbol_version, default_symbol_version): Factor redundant
definitions out of conditional.
* linuxthreads/sysdeps/pthread/bits/libc-lock.h:
Wrap BP_SYM () around weak extern declarations of pthread
functions that have pointers in their return+arg signatures.
prototype.
* join.c: Include <stdlib.h> for exit prototype.
* elf/vismod2.c: Include <stdlib.h> for abort prototype.
* rt/aio_suspend.c: Likewise.
2000-06-21 Andreas Jaeger <aj@suse.de>
* sysdeps/pthread/timer_routines.c: Include <stdlib.h> for memset
prototype.
* join.c: Include <stdlib.h> for exit prototype.
* iconv/gconv_int.h (strict gconv_module): Remove all members
associated with regular expressions. Use a simple string as the
from name.
* iconv/gconv_db.c: Remove code handling regular expressions.
* iconv/gconv_conf.c: Likewise.
* iconv/iconv_prog.c: Likewise.
* iconv/gconv_builtin.h: Adjust for change in gconv_conf.c.
2000-06-14 Kazumoto Kojima <kkojima@rr.iij4u.or.jp>
* sysdeps/sh/sh4/fpu/fclrexcpt.c: Remove definitions for backward
compatibility.
* sysdeps/sh/sh4/fpu/fegetenv.c: Likewise.
* sysdeps/sh/sh4/fpu/fesetenv.c: Likewise.
* sysdeps/sh/sh4/fpu/fraiseexcpt.c: Likewise.
* sysdeps/sh/sh4/fpu/fsetexcptflg.c: Likewise.
2000-06-14 Jakub Jelinek <jakub@redhat.com>
* include/libc-symbols.h (link_warning): If HAVE_SECTION_QUOTES is
defined, terminate quotes and read them after the comment char.
* configure.in (HAVE_SECTION_QUOTES): Test whether
__attribute__((section ("x"))) puts quotes around x or not.
* config.h.in (HAVE_SECTION_QUOTES): Add.
* configure: Rebuilt.
2000-06-13 Kaz Kylheku <kaz@ashi.footprints.net>
A few optimizations. Got rid of unnecessary wakeups of timer threads,
tightened up some critical regions and micro-optimized some list
manipulation code.
* sysdeps/pthread/timer_routines.c (__timer_thread_queue_timer):
Returns int value now to indicate whether timer was queued at head.
* sysdeps/pthread/posix-timer.h: Likewise.
* sysdeps/pthread/timer_settime.c (timer_settime): Takes advantage of
new return value from __timer_thread_queue_timer to avoid waking
up timer thread unnecessarily.
* sysdeps/pthread/posix-timer.h (timer_id2ptr): No longer checks
inuse flag, because this requires mutex to be held. Callers updated
to do the check when they have the mutex.
* sysdeps/pthread/timer_getoverr.c: Add check for inuse here.
* sysdeps/pthread/timer_settime.c (timer_settime): Tighter critical
regions: avoids making system calls while holding timer mutex, and
a few computations were moved outside of the mutex as well.
* sysdeps/pthread/timer_gettime.c (timer_gettime): Likewise.
* sysdeps/pthread/posix-timer.h (list_unlink_ip): Function name changed
to list_unlink_ip, meaning idempotent. Pointer manipulation
changed to get better better code out of gcc.
* sysdeps/pthread/timer_routines.c (list_unlink): Non-idempotent
version of list_unlink added here.
* sysdeps/pthread/timer_delete.c: Use appropriate list unlink
function in all places: idempotent one for timers, non-idempotent
one for thread nodes.
* sysdeps/pthread/timer_settime: Likewise.
* sysdeps/pthread/timer_routines.c: Likewise.
2000-06-12 Kazumoto Kojima <kkojima@rr.iij4u.or.jp>
Yutaka Niibe <gniibe@chroot.org>
* sysdeps/sh/Dist: New file.
* sysdeps/sh/Implies: New file.
* sysdeps/sh/gmp-mparam.h: New file.
* sysdeps/sh/init-first.c: New file.
* sysdeps/sh/machine-gmon.h: New file.
* sysdeps/sh/memcpy.S: New file.
* sysdeps/sh/memprof.h: New file.
* sysdeps/sh/memset.S: New file.
* sysdeps/sh/sh3/__longjmp.S: New file.
* sysdeps/sh/sh3/bits/endian.h: New file.
* sysdeps/sh/sh3/bits/huge_val.h: New file.
* sysdeps/sh/sh3/bits/setjmp.h: New file.
* sysdeps/sh/sh3/bsd-_setjmp.S: New file.
* sysdeps/sh/sh3/bsd-setjmp.S: New file.
* sysdeps/sh/sh3/dl-machine.h: New file.
* sysdeps/sh/sh3/elf/initfini.c: New file.
* sysdeps/sh/sh3/elf/start.S: New file.
* sysdeps/sh/sh3/setjmp.S: New file.
* sysdeps/sh/sh3/sys/ucontext.h: New file.
* sysdeps/sh/sh4/__longjmp.S: New file.
* sysdeps/sh/sh4/bits/endian.h: New file.
* sysdeps/sh/sh4/bits/huge_val.h: New file.
* sysdeps/sh/sh4/bits/setjmp.h: New file.
* sysdeps/sh/sh4/bsd-_setjmp.S: New file.
* sysdeps/sh/sh4/bsd-setjmp.S: New file.
* sysdeps/sh/sh4/dl-machine.h: New file.
* sysdeps/sh/sh4/elf/initfini.c: New file.
* sysdeps/sh/sh4/elf/start.S: New file.
* sysdeps/sh/sh4/fpu/bits/fenv.h: New file.
* sysdeps/sh/sh4/fpu/bits/huge_val.h: New file.
* sysdeps/sh/sh4/fpu/bits/mathdef.h: New file.
* sysdeps/sh/sh4/fpu/fclrexcpt.c: New file.
* sysdeps/sh/sh4/fpu/fegetenv.c: New file.
* sysdeps/sh/sh4/fpu/fegetround.c: New file.
* sysdeps/sh/sh4/fpu/feholdexcpt.c: New file.
* sysdeps/sh/sh4/fpu/fesetenv.c: New file.
* sysdeps/sh/sh4/fpu/fesetround.c: New file.
* sysdeps/sh/sh4/fpu/fpu_control.h: New file.
* sysdeps/sh/sh4/fpu/fraiseexcpt.c: New file.
* sysdeps/sh/sh4/fpu/fsetexcptflg.c: New file.
* sysdeps/sh/sh4/fpu/ftestexcept.c: New file.
* sysdeps/sh/sh4/fpu/libm-test-ulps: New file.
* sysdeps/sh/sh4/setjmp.S: New file.
* sysdeps/sh/sh4/sys/ucontext.h: New file.
* sysdeps/sh/strlen.S: New file.
* sysdeps/sh/sysdep.h: New file.
* sysdeps/unix/sh/sysdep.S: New file.
* sysdeps/unix/sh/sysdep.h: New file.
* sysdeps/unix/sysv/linux/sh/Dist: New file.
* sysdeps/unix/sysv/linux/sh/Makefile: New file.
* sysdeps/unix/sysv/linux/sh/Versions: New file.
* sysdeps/unix/sysv/linux/sh/bits/mman.h: New file.
* sysdeps/unix/sysv/linux/sh/bits/resource.h: New file.
* sysdeps/unix/sysv/linux/sh/brk.c: New file.
* sysdeps/unix/sysv/linux/sh/chown.c: New file.
* sysdeps/unix/sysv/linux/sh/clone.S: New file.
* sysdeps/unix/sysv/linux/sh/fchown.c: New file.
* sysdeps/unix/sysv/linux/sh/fxstat.c: New file.
* sysdeps/unix/sysv/linux/sh/getegid.c: New file.
* sysdeps/unix/sysv/linux/sh/geteuid.c: New file.
* sysdeps/unix/sysv/linux/sh/getgroups.c: New file.
* sysdeps/unix/sysv/linux/sh/getresgid.c: New file.
* sysdeps/unix/sysv/linux/sh/getresuid.c: New file.
* sysdeps/unix/sysv/linux/sh/getrlimit.c: New file.
* sysdeps/unix/sysv/linux/sh/getrlimit64.c: New file.
* sysdeps/unix/sysv/linux/sh/getuid.c: New file.
* sysdeps/unix/sysv/linux/sh/lchown.c: New file.
* sysdeps/unix/sysv/linux/sh/lxstat.c: New file.
* sysdeps/unix/sysv/linux/sh/msgctl.c: New file.
* sysdeps/unix/sysv/linux/sh/oldgetrlimit64.c: New file.
* sysdeps/unix/sysv/linux/sh/pipe.S: New file.
* sysdeps/unix/sysv/linux/sh/profil-counter.h: New file.
* sysdeps/unix/sysv/linux/sh/semctl.c: New file.
* sysdeps/unix/sysv/linux/sh/setegid.c: New file.
* sysdeps/unix/sysv/linux/sh/seteuid.c: New file.
* sysdeps/unix/sysv/linux/sh/setfsgid.c: New file.
* sysdeps/unix/sysv/linux/sh/setfsuid.c: New file.
* sysdeps/unix/sysv/linux/sh/setgid.c: New file.
* sysdeps/unix/sysv/linux/sh/setgroups.c: New file.
* sysdeps/unix/sysv/linux/sh/setregid.c: New file.
* sysdeps/unix/sysv/linux/sh/setresgid.c: New file.
* sysdeps/unix/sysv/linux/sh/setresuid.c: New file.
* sysdeps/unix/sysv/linux/sh/setreuid.c: New file.
* sysdeps/unix/sysv/linux/sh/setrlimit.c: New file.
* sysdeps/unix/sysv/linux/sh/setuid.c: New file.
* sysdeps/unix/sysv/linux/sh/sh3/register-dump.h: New file.
* sysdeps/unix/sysv/linux/sh/sh4/register-dump.h: New file.
* sysdeps/unix/sysv/linux/sh/shmctl.c: New file.
* sysdeps/unix/sysv/linux/sh/sigcontextinfo.h: New file.
* sysdeps/unix/sysv/linux/sh/socket.S: New file.
* sysdeps/unix/sysv/linux/sh/sys/io.h: New file.
* sysdeps/unix/sysv/linux/sh/sys/ucontext.h: New file.
* sysdeps/unix/sysv/linux/sh/sys/user.h: New file.
* sysdeps/unix/sysv/linux/sh/syscalls.list: New file.
* sysdeps/unix/sysv/linux/sh/sysdep.S: New file.
* sysdeps/unix/sysv/linux/sh/sysdep.h: New file.
* sysdeps/unix/sysv/linux/sh/vfork.S: New file.
* sysdeps/unix/sysv/linux/sh/xstat.c: New file.
2000-06-10 Ulrich Drepper <drepper@redhat.com>
* sysdeps/pthread/timer_routines.c (list_append): Little fix to
reall append the entry.
list and remove from active list.
2000-06-10 Kaz Kylheku <kaz@ashi.footprints.net>
* sysdeps/pthread/timer_create.c: Thread matching now done on
clock type as well as thread attributes.
There are individual global signal-delivering threads for
different clock types.
* sysdeps/pthread/posix-timer.h: Likewise.
* sysdeps/pthread/timer_routines.c: Likewise.
* sysdeps/pthread/timer_routines.c: Thread allocation and
deallocation function now remembers to put thread on active
list and remove from active list.
Thus now the feature of binding multiple timers
to a single thread actually works.
2000-06-10 Ulrich Drepper <drepper@redhat.com>
* pthread.c (__pthread_create_2_1): Optimize a bit.
* internals.h (invalid_handle): Also test for p_terminated != 0.
(nonexisting_handle): New function. Same as old invalid_handle.
* join.c (pthread_join): Use nonexisting_handle instead of
invalid_handle to test for acceptable thread handle.
Reported by Permaine Cheung <pcheung@cygnus.com>.
* sysdeps/pthread/posix-timer.h (struct timer_node): Add creator_pid.
* sysdeps/pthread/timer_create.c: Fill in creator_pid.
* sysdeps/pthread/timer_routines.c (thread_expire_timer): Send signal
with sigqueueinfo is this system call is available.
* sysdeps/pthread/timer_create.c (timer_create): Allow
CLOCK_CPUTIME if _POSIX_CPUTIME is defined.
