1999-11-25 H.J. Lu <hjl@gnu.org>
* stdlib/exit.c (exit): Run funtions only if
__exit_funcs->idx > 0.
1999-11-25 Ulrich Drepper <drepper@cygnus.com>
* manual/charset.texi (iconv Examples): Add iconv call to flush
state. Reported by Andrew Clausen <clausen@alphalink.com.au>.
1999-11-25 Andreas Jaeger <aj@suse.de>
* manual/install.texi (Running make install): Better describe
update from libc5.
Patch by Michael Deutschmann <michael@talamasca.wkpowerlink.com>.
1999-11-25 Andreas Jaeger <aj@suse.de>
* include/sys/mman.h: Remove K&R compatibility.
1999-11-15 Andreas Jaeger <aj@suse.de>
* misc/sys/mman.h: Use __REDIRECT for mmap, correct prototype to
use __off64_t.
1999-11-25 Ulrich Drepper <drepper@cygnus.com>
* iconv/iconv_prog.c (process_block): For stateful charsets write
out byte sequence to get to initial state at the end of the file.
which was reported to not work (which proofed to be wrong).
* include/aio.h: Remove __THROW from internal interfaces. __THROW
is only need in external header files that might be compiled by a
C++ compiler.
* include/alloca.h: Likewise.
* include/db.h: Likewise.
* include/dirent.h: Likewise.
* include/execinfo.h: Likewise.
* include/fpu_control.h: Likewise.
* include/glob.h: Likewise.
* include/grp.h: Likewise.
* include/libintl.h: Likewise.
* include/math.h: Likewise.
* include/math.h: Likewise.
* include/mntent.h: Likewise.
* include/mntent.h: Likewise.
* include/netdb.h: Likewise.
* include/pwd.h: Likewise.
* include/sched.h: Likewise.
* include/shadow.h: Likewise.
* include/stdlib.h: Likewise.
* include/sys/file.h: Likewise.
* include/sys/gmon.h: Likewise.
* include/sys/ioctl.h: Likewise.
* include/sys/socket.h: Likewise.
* include/sys/stat.h: Likewise.
* include/sys/sysinfo.h: Likewise.
* include/sys/time.h: Likewise.
* include/sys/times.h: Likewise.
* include/sys/uio.h: Likewise.
* include/sys/wait.h: Likewise.
* include/termios.h: Likewise.
* include/time.h: Likewise.
* include/ulimit.h: Likewise.
* include/utmp.h: Likewise.
* include/wchar.h: Likewise.
1999-11-22 Andreas Jaeger <aj@suse.de>
* sunrpc/rpc_clntout.c (printbody): Fix -CLMNab output.
Patch by Jerry Perkins <jrperkins@iname.com>, closes PR
libc/1456+1457.
1999-11-22 Jakub Jelinek <jakub@redhat.com>
* sysdeps/generic/siglist.h: Avoid declaring the same field
twice if SIGPWR is defined to SIGLOST.
* sysdeps/sparc/sparc32/memcpy.S: bcopy takes size_t argument,
not signed, so we should not special case it for negative args.
* sysdeps/sparc/sparc32/sparcv9/memmove.c: Don't use generic
memmove, use the one provided in memcpy.S.
* sysdeps/sparc/sparc64/memcpy.S: bcopy should handle overlapping
copies like memmove, while the previous version worked like memcpy.
Implement optimized assembly memmove.
* sysdeps/sparc/sparc64/memmove.c: New file.
1999-11-23 Ulrich Drepper <drepper@cygnus.com>
* po/cs.po: Update from translators.
1999-11-23 Andreas Jaeger <aj@suse.de>
1999-10-27 Andreas Jaeger <aj@suse.de>
* sysdeps/generic/ifreq.h: New file.
* resolv/res_hconf.c: Add missing includes to get all prototypes.
(_res_hconf_reorder_addrs): Rewrite. This never worked before.
Reported by John DiMarco <jdd@cs.toronto.edu>.
(_res_hconf_reorder_addrs): Made thread safe.
(free_mem): New function, needed for malloc debugging.
1999-10-29 Andreas Jaeger <aj@suse.de>
* sysdeps/unix/sysv/linux/if_index.c (opensock): Move function to ...
* sysdeps/generic/opensock.c (__opensock): ...here in a new file.
* sysdeps/unix/sysv/linux/if_index.c: Change all callers of
opensock to use __opensock.
* socket/Makefile (routines): Add opensock.
* include/sys/socket.h (__opensock): Add prototype declaration.
1999-10-26 Andreas Jaeger <aj@suse.de>
* stdlib/msort.c: Include <alloca.h> for prototype.
Remove K&R compatibility and _quicksort prototype.
* stdlib/qsort.c: Make code and comments 64 bit clean; clarify
some comments.
Reported by Bernd Löchner <loechner@informatik.uni-kl.de>.
Remove K&R compatibility.
Move prototype declaration to include/stdlib.h.
Include <alloca.h> for prototype; include <limits.h> for CHAR_BIT.
* include/stdlib.h: Prototype declaration for _quicksort.
1999-10-04 Ulrich Drepper <drepper@cygnus.com>
* include/string.h: Add __memrchr declaration.
* string/string.h: Moce __memrchr declaration to include/string.h.
1999-10-03 Ulrich Drepper <drepper@cygnus.com>
* string/Makefile (routines): Add memrchr.
* sysdeps/generic/memrchr.c: Don't undef memchr, undef memrchr.
Correct order of tests for matching bytes.
* string/tester.c: Add tests for memrchr.
* sysdeps/i386/i486/bits/string.h (__memrchr): Correct implementation.
Start from the last character and take decrement not increment
into account for correction in return line. Add memrchr alias.
* sysdeps/i386/bits/string.h: Likewise.
1999-08-21 Mark Kettenis <kettenis@gnu.org>
* stdio-common/vfscanf.c [! USE_IN_LIBIO]: Add necessary
definitions for MEMCPY, ISSPACE, ISDIGIT, ISXDIGIT, TOLOWER, L_,
CHAR_T, UCHAR_T and WIN_T to make the code compile again when
stdio is used instead of libio.
* stdio-common/vfprintf.c [! USE_IN_LIBIO]: Add necessary
definitions for CHAR_T, UCHAR_T, INT_T, L_, ISDIGIT, PAD and PUTC
to make the code compile again when stdio is used instead of
libio.
(vfprintf): Only check for correct orientation if ORIENT is
defined.
* stdio-common/Makefile (routines): Only add vfwprintf and
vfwscanf if we're using libio.
1999-08-21 Mark Kettenis <kettenis@gnu.org>
* include/stdio.h [! USE_IN_LIBIO && __need_FILE]: Avoid defining
any additional prototype just as we do for libio.
1999-08-21 Mark Kettenis <kettenis@gnu.org>
* include/bits/xopen_lim.h: Do not define STREAM_MAX and
TZNAME_MAX. These limits are not X/Open specific.
* stdio-common/stdio_lim.h.in: Allow inclusion when __need_IOV_MAX
is defined.
1999-08-21 Mark Kettenis <kettenis@gnu.org>
* Rules: When generated stdio_lim.h, avoid defining IOV_MAX if
UIO_MAXIOV is left undefined in sys/uio.h.
* stdio-common/stdio_lim.h.in: Adapt for change above.
1999-08-21 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* sysdeps/unix/sysv/linux/mips/bits/sigaction.h (SA_RESETHAND): Add it.
* sysdeps/mips/bits/dlfcn.h: Remove SGI specific calls, add RTLD_LOCAL.
Patches by Ralf Baechle <ralf@uni-koblenz.de>
1999-07-30 Andreas Schwab <schwab@suse.de>
* sysdeps/unix/sysv/linux/getsysstats.c (GET_NPROCS_PARSER): New
definition.
(__get_nprocs): Use it.
(__get_nprocs_conf): Define as separate function if
GET_NPROCS_CONF_PARSER is defined.
* sysdeps/unix/sysv/linux/alpha/getsysstats.c: New file.
* include/sys/sysinfo.h: New file.
* sysdeps/generic/sys/sysinfo.h: Remove declaration of internal
interface.
* sysdeps/unix/sysv/linux/sys/sysinfo.h: Likewise.
1999-07-30 H.J. Lu <hjl@gnu.org>
* libio/iofflush.c (fflush_unlocked): Weak aliase if
_IO_MTSAFE_IO is not defined.
* libio/clearerr.c (clearerr_unlocked): Likewise.
* libio/feof.c (feof_unlocked): Likewise.
* libio/ferror.c (ferror_unlocked): Likewise.
* libio/fputc.c (fputc_unlocked): Likewise.
* libio/getc.c (getc_unlocked, fgetc_unlocked): Likewise.
* libio/getchar.c (getchar_unlocked): Likewise.
* libio/putc.c (putc_unlocked): Likewise.
* libio/putchar.c (putchar_unlocked): Likewise.
1999-07-30 Thorsten Kukuk <kukuk@suse.de>
* sunrpc/Versions: Add svc_getreq_common, svc_getreq_poll,
svc_max_pollfd and svc_pollfd to GLIBC_2.2
* sunrpc/rpc/svc.h: Use rpc*_t types, add new prototypes
for svc_run/poll interface.
* sunrpc/rpc/types.h: Add rpc*_t typedefs.
* sunrpc/rpc_common.c: Add svc_pollfd and svc_max_pollfd as
global variable.
* sunrpc/svc.c: Add svc_getreq_poll and svc_getreq_common,
rewrite other svc_getreq* functions to use svc_getreq_common.
* sunrpc/svc_run.c: Use poll().
1999-07-30 Andreas Schwab <schwab@suse.de>
* Makerules: Put sysd-versions and Versions.all on
postclean-generated instead of common-generated.
1999-07-29 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* manual/time.texi (Basic CPU Time): Note that clock_t can wrap
around and CLOCKS_PER_SEC is 1e6.
* sysdeps/generic/setenv.c: Move setenv code in new function
__add_to_environ. Add new parameter specifying already
constructed string for the environment.
(setenv): Call __add_to_environ with new parameter set to NULL.
(unsetenv): Really test all elements for duplicated name. Missed those
cases where the two are following each other.
* sysdeps/generic/putenv.c: Use __add_to_environ instead of setenv.
* include/stdlib.h: Add prototype of __add_to_environ.
* stdlib/tst-environ.c: New file.
1999-07-17 Zack Weinberg <zack@rabi.columbia.edu>
* include/libc-symbol.h: Clean up definitions of weak_alias,
strong_alias, symbol_version, etc. etc.
* posix/getopt.h: Use ctype.h to get features.h included, and don't
include it at all if __GNU_LIBRARY__ is already defined.
* sysdeps/gnu/Makefile (libdl-routines): Add eval.
1999-07-06 Zack Weinberg <zack@rabi.columbia.edu>
* dlfcn: New directory. Move the following files from elf:
dladdr.c, dlclose.c, dlerror.c, dlfcn.h, dlopen.c,
dlopenold.c, dlsym.c, dlvsym.c.
* dlfcn/Makefile: New file.
* dlfcn/Versions: New file.
* dlfcn/dlsym.c: All ELF-specific code split out to new
function _dl_sym.
* dlfcn/dlvsym.c: All ELF-specific code split out to new
function _dl_vsym.
* elf/dl-sym.c: New file. _dl_sym and _dl_vsym are
implemented here.
* dlfcn/dladdr.c: Remove all references to ELF data structures
or headers.
* dlfcn/dlclose.c: Likewise.
* dlfcn/dlerror.c: Likewise.
* dlfcn/dlopen.c: Likewise.
* dlfcn/dlopenold.c: Likewise.
* Makeconfig (dlfcn): New variable - set to `dlfcn' if elf is
yes, empty otherwise.
(libdl): Set to dlfcn/libdl.so or libdl.a if elf is yes,
depending on build-shared.
(subdirs): Add $(dlfcn).
(rpath-dirs): Add dlfcn.
* elf/Makefile: Remove all references to libdl or its
components, except the ones relating to the test cases.
(routines): Add dl-sym.
* elf/Versions (libc): Add _dl_sym and _dl_vsym for GLIBC_2.2.
(libdl): Delete.
* elf/dl-close.c (_dl_close): Change argument to void *.
* elf/dl-open.c (_dl_open): Change return type to void *.
* elf/eval.c: Removed.
* elf/ldsodefs.h: Move prototypes of _dl_catch_error,
_dlerror_run, _dl_open, _dl_close, _dl_addr, and
_dl_mcount_wrapper_check to include/dlfcn.h. Delete
_CALL_DL_FCT macro.
* include/dlfcn.h: Also prototype _dl_sym and _dl_vsym here.
Include real header from dlfcn directory.
* include/ldsodefs.h: Removed.
* grp/initgroups.c: Use DL_CALL_FCT not _CALL_DL_FCT.
* nss/getXXbyYY_r.c: Likewise.
* nss/getXXent_r.c: Likewise.
* iconv/gconv.c: Likewise. Don't include ldsodefs.h.
* iconv/gconv_db.c: Likewise. Don't include ldsodefs.h.
* iconv/skeleton.c: Don't include ldsodefs.h.
* nss/nsswitch.h: Don't include ldsodefs.h. Include dlfcn.h.
1999-07-07 Ulrich Drepper <drepper@cygnus.com>
1999-07-06 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/unix/sysv/linux/alpha/ioperm.c: Update for some more
motherboards.
Patch by Jay Estabrook.
* sysdeps/unix/sysv/linux/configure.in: Don't test for libc4 in
ldd for SPARC.
* /sysdeps/unix/sysv/linux/sparc/ldd-rewrite.sed: New file.
Patch by Cristian Gafton.
1999-07-02 Cristian Gafton <gafton@redhat.com>
* sysdeps/unix/sysv/linux/bits/socket.h (__cmsg_nxthdr): "return 0"
instead of "return NULL" to make C++ happy.
1999-07-04 Mark Kettenis <kettenis@gnu.org>
* libio/iofdopen.c (_IO_new_fdopen): Set EINVAL if MODE is not
allowed by the file access mode of the open file.
1999-07-06 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/generic/setfpucw.c: Include math.h to get all needed
macros defined.
1999-07-03 Jakub Jelinek <jj@ultra.linux.cz>
* sysdeps/sparc/sparc64/submul_1.S: Fix carry handling. Optimize.
* sysdeps/sparc/sparc64/lshift.S: Make a leaf subroutine. Optimize.
* sysdeps/sparc/sparc64/rshift.S: Likewise.
* sysdeps/sparc/sparc64/mul_1.S: Optimize.
1999-07-04 Wolfram Gloger <wmglo@dent.med.uni-muenchen.de>
* malloc/malloc.c (request2size): Check for overflow and return
NULL whenever it is encountered.
1999-07-04 Zack Weinberg <zack@rabi.columbia.edu>
* sysdeps/posix/tempname.c (__gen_tempname): Add
ability to create directories. Replace OPENIT and LARGEFILE
args with a single flags parameter.
* sysdeps/generic/tempname.c: Likewise.
* include/stdio.h: Adjust prototype of __gen_tempname to
match. Define symbolic constants for second argument.
* misc/mkdtemp.c: New file, provides new function mkdtemp().
* stdlib/stdlib.h: Prototype it.
* misc/Versions: Export it.
* misc/Makefile (routines): Add mktemp.
* manual/filesys.texi: Document it.
* misc/mktemp.c: Adjust call of __gen_tempname to match new
convention.
* misc/mkstemp.c: Likewise.
* stdio-common/tempnam.c: Likewise.
* stdio-common/tmpfile.c: Likewise.
* stdio-common/tmpfile64.c: Likewise.
* stdio-common/tmpnam.c: Likewise.
* stdio-common/tmpnam_r.c: Likewise.
1999-07-05 Jakub Jelinek <jj@ultra.linux.cz>
* sysdeps/sparc/sparc64/dl-machine.h (elf_machine_rela): Support
R_SPARC_OLO10 relocations.
* elf/elf.h (R_SPARC_OLO10): Fix comment.
1999-06-18 Thorsten Kukuk <kukuk@suse.de>
* sysdeps/alpha/atomicity.h: Correct counting of subsections.
1999-06-17 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
* stdlib/tst-strtoll.c: Avoid warning about huge constant.
1999-06-20 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
* stdio-common/vfprintf.c (group_member): Make parameters and
return types pointers to CHAR_T instead of UCHAR_T.
(vfprintf): Change type of work_buffer, workend and string to
CHAR_T pointer/array.
(process_arg, process_string_arg): Adjust/remove casts. Add
missing use of L_ macro.
(printf_unknown): Add missing uses of L_ macro.
1999-06-20 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
* wcsmbs/wcschrnul.c: Explicitly cast return value to avoid
warning.
1999-06-20 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
* libio/wgenops.c (__wuflow): Fix use of WEOF vs. EOF. Call
_IO_switch_to_wget_mode instead of _IO_switch_to_get_mode.
(__wunderflow): Likewise.
(_IO_switch_to_wget_mode): Likewise.
(_IO_init_wmarker): Likewise.
* libio/wfileops.c (_IO_wfile_seekoff): Call
_IO_switch_to_wget_mode, not _IO_switch_to_get_mode.
(_IO_wfile_jumps): Fix pbackfail entry.
* libio/iosetvbuf.c (_IO_setvbuf): Only call wide char setbuf
function if the stream is currently unoriented.
1999-06-19 Zack Weinberg <zack@rabi.columbia.edu>
* wcsmbs/wchar.h: Define __need___va_list before including stdarg.h.
Wrap all wide stream functions with #ifdef __USE_ISOC9X. Use
__gnuc_va_list in v*w(printf|scanf) prototypes.
1999-06-20 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* libio/oldiopopen.c (_IO_old_proc_open): Apply change from
1999-03-29 to iopopen also here.
Reported by Richard Braakman <dark@xs4all.nl>.
1999-06-20 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* include/features.h: Use __GNUC_PREREQ.
* sysdeps/i386/fpu/bits/mathinline.h: Likewise
1999-06-19 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
* stdio-common/vfscanf.c (ungetc, inchar) [COMPILE_WPRINTF]:
Change EOF to WEOF and remove cast.
(UNGETC): Remove macro.
(_IO_vfwscanf): Change isspace to ISSPACE and UNGETC to ungetc.
* stdio-common/printf-parse.h (find_spec) [!COMPILE_WPRINTF]:
Change ISASCII to isascii and MBRLEN to mbrlen.
(parse_one_spec): Compare info.spec always against wchar_t
values.
* stdio-common/vfprintf.c: Remove unused ISASCII and MBRLEN.
(_itoa, _itoa_word) [COMPILE_WRPINTF]: Don't cast second argument.
(NOT_IN_JUMP_RANGE, CHAR_CLASS): Change (int) to (INT_T), use L_.
1999-06-19 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
* libio/Makefile (shared-only-routines): Add oldiofgetpos,
oldiofgetpos64, oldiofsetpos and oldiofsetpos64.
(routines): Include oldiofgetpos, oldiofgetpos64, oldiofsetpos and
oldiofsetpos64 only if doing versioning.
1999-01-11 Ulrich Drepper <drepper@cygnus.com>
* ctype/Versions [GLIBC_2.0]: Export __ctype32_b.
* include/wctype.h: Declare __iswctype.
* stdio-common/vfscanf.c (__vfscanf): Use __iswspace instead of
iswspace.
* wctype/Makefile (routines): Add wcextra_l.
* wctype/wcextra.c (iswblank): Implement function here and don't use
__iswctype.
(__iswblank_l): Move definition to...
* wctype/wcextra_l.c: ...here. New file.
* wctype/wcfuncs.c: Really implement functions and don't call
__iswctype or __towctrans.
* wctype/wctype.h: Change isw* and tow* macros. Don't call
__iswctype or __towctrans. Instead optimize constant argument case.
* iconv/gconv.h: Fix typos.
* iconv/skeleton.c: Fix typos. Optimize init function a bit.
Correctly emit escape sequence to return to initial state in
conversion function.
* iconvdata/iso-2022-jp.c (gconv_init): Correctly initialize
max_needed_to element.
* manual/mbyte.texi: Removed. This is now described in charset.texi.
* manual/charset.texi: New file.
* manual/Makefile (chapters): Replace mbyte by charset.
* manual/ctype.texi: Document wide character functions.
* manual/intro.texi: Fix reference to mbyte chapter.
* manual/lang.texi: Likewise.
* manual/locale.texi: Likewise.
* manual/stdio.texi: Likewise.
* manual/string.texi: Fix @node line for new charset chapter.
* manual/libc.texinfo (UPDATED): Updated. Also update copyright years.
* manual/memory.texi (savestring): Optimize code to give a good
example.
* manual/filesys.texi: Fix wording. Patches by Jim Meyering.
* nscd/nscd_getgr_r.c: Include stdint.h to get uintptr_t definition.
* nscd/nscd_getpw_r.c: Likewise.
* nscd/nscd_gethst_r.c: Likewise.
* stdlib/stdtold_l.c: Always include xlocale.h.
1999-01-11 Geoffrey Keating <geoffk@ozemail.com.au>
* stdlib/fpioconst.h (LDBL_MAX_10_EXP_LOG): Define to be same as
DBL_MAX_10_EXP_LOG if there is no long double.
(_fpioconst_pow10): Always use size as LDBL_MAX_10_EXP_LOG to match
printf_fp.c.
1999-01-10 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* timezone/Makefile ($(testdata)/GB): Changed to ...
($(testdata)/Europe/London): ... for tst-timezone test.
($(objpfx)tst-timezone.out): Change GB to Europe/London.
* timezone/tst-timezone.c (main): Enable DST switching test,
change GB to Europe/London.
1999-01-10 Philip Blundell <philb@gnu.org>
* socket/Makefile (headers): Remove bits/sockunion.h.
1999-01-09 Philip Blundell <philb@gnu.org>
* socket/sys/socket.h: Don't include <bits/sockunion.h>.
* sysdeps/generic/bits/sockunion.h: Deleted.
* sysdeps/unix/sysv/linux/bits/sockunion.h: Likewise.
1999-01-08 H.J. Lu <hjl@gnu.org>
* io/fts.c (fts_close): Don't access memory after having it freed.
* include/stdio.h: Add new parameter to __path_search.
* libio/oldtmpfile.c: Add 0 as new parameter to __path_search.
* stdio-common/tmpfile.c: Likewise.
* stdio-common/tmpfile64.c: Likewise.
* stdio-common/tmpnam.c: Likewise.
* stdio-common/tmpnam_r.c: Likewise.
* stdio-common/tempnam.c: Add 1 as new parameter to __path_search.
* sysdeps/posix/tempname.c: Add new parameter. If value is nonzero
consider TMPDIR environment variable and dir parameter. Otherwise not.
* stdio-common/Makefile (tests): Add tst-tmpnam.
* stdio-common/tst-tmpnam.c: New file.
1998-11-29 1998 H.J. Lu <hjl@gnu.org>
* libio/genops.c (_IO_unbuffer_write): Renamed from
_IO_unbuffer_all.
(_IO_cleanup): Call _IO_unbuffer_write instead of
_IO_unbuffer_all.
1998-12-01 Ulrich Drepper <drepper@cygnus.com>
* intl/localealias.c: Use *_unlocked version of stdio function if
_LIBC_REENTRANT is defined, not _LIBC.
1998-12-01 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* include/grp.h: Add prototypes for internal functions
__getgrgid_r and __getgrnam_r.
* inet/herrno.c: Include <netdb.h> for prototype, undef h_errno.
* resolv/nsap_addr.c: Include <arpa/inet.h> for inet_nsap_addr and
inet_nsap_ntoa prototypes.
* sysdeps/unix/sysv/linux/Makefile (syscall-%.h): Pass -I option
to gcc to have it find the correct system header.
Patch by Maciej W. Rozycki <macro@ds2.pg.gda.pl>.
Reported by Maciej W. Rozycki <macro@ds2.pg.gda.pl>.
* include/libc-symbols.h: If HAVE_BUILTIN_EXPECT is not defined
define __builtin_expect as a macro substituting to the first
argument.
* config.h.in: Define HAVE_BUILTIN_EXPECT.
* configure.in: Add test for __builtin_expect.
