Update to 1.3.3:

Changes for APR 1.3.3

  *) Rename apr_pool_create_core to apr_pool_create_unmanaged and
    deprecate the old API name. It better reflects the scope and usage
    of this function. [Mladen Turk]

  *) Use proper return code for fcntl-based apr_proc_mutex_trylock()
    on platforms that return EACCES instead of EAGAIN when the lock
    is already held (AIX, HP-UX).
    [Eric Covener]

  *) Fix APR_PID_T_FMT detection on Solaris.  PR 45513
    [Rainer Jung <rainer.jung kippdata.de>]

Changes for APR 1.3.2

  *) Fix getservbyname_r() detection.  [Ruediger Pluem]

Changes for APR 1.3.1

  *) Fix win32 apr.hw to pick up XP/2003 TCP/IP multicast constants and
    revert to IPV6 disabled-by-default (a change present only in 1.3.0).
    [William Rowe]

  *) Fix autoconf cached detection of atomic builtins.  [Jim Jagielski]

  *) Use thread safe versions of getservbyname().  [Bojan Smojver]

  *) Use thread safe getpass_r on Netware.  [Guenter Knauf]

Changes for APR 1.3.0

  *) Fix Solaris poll failure.  PR 43000
    [Henry Jen <henryjen ztune.net>]

  *) apr_getservbyname(): Use proper method for converting port
    to host byte order.  PR 44903.
    [Chris Taylor <ctaylor wadeford.plus.com>]

  *) Use /dev/urandom in preference to /dev/random as entropy source
    for apr_generate_random_bytes.  PR 44881.  [Bojan Smojver]

  *) Implement apr_proc_wait_all_procs for windows.
    The implementation uses tool help library present
    on Windows 2000 and later. APR_ENOTIMPL is returned
    on platforms missing tool help from kernel32.dll.
    [Mladen Turk]

  *) Introduce apr_pool_pre_cleanup_register() for registering
    a cleanup that is called before any subpool is destroyed
    within apr_pool_clear or apr_pool_destroy.
    This allows to register a cleanup that will notify subpools
    about its inevitable destruction.
    [Mladen Turk]

  *) Introduce apr_pool_create_core_ex() for creation of standalone
    pools without parent. This function should be used for short
    living pools, usually ones that are created and destroyed
    either in a loop or inside function call. Since the pools
    created with this function doesn't have a parent they must
    be explicitly destroyed when done.
    [Mladen Turk]

  *) Fix return value when apr_pollset_poll interrupted.
    PR 42580 [Basant Kumar Kukreja <basant.kukreja sun.com>]

  *) Add missing semi-colon in Win9x code path of apr_file_open that breaks
    Win9X Debug builds. PR 44329. [Curt Arnold]

  *) z/OS: return standard apr_status_t codes from apr_dso_load()
    and apr_dso_sym().  [David Jones <oscaremma gmail.com>]

  *) Fix the make test target in the spec file. [Graham Leggett]

  *) Fix DSO-related crash on z/OS caused by incorrect memory
    allocation.  [David Jones <oscaremma gmail.com>]

  *) Implement Darwin-semantic (9.0.0 and later) sendfile support.
    Use writev in lieu of hdtr vecs since how Darwin counts the
    data is undocumented. [Geoff Greer <angryparsley mipsisrisc.com>,
    William Rowe, Jim Jagielski]

  *) Implemented the APR_FOPEN_SPARSE flag, permits win32 to create
    sparse data files.  Also bestow apr_fileinfo_t csize field for
    Windows versions 2000 and later, which helps in the detection
    that a sparse file is truly in use (see test/testlfs.c for an
    example, because different filesystems can vary in behavior
    even on an OS supporting sparse files).  [William Rowe]

  *) Corrected for Darwin and others to toggle APR_HAS_LARGE_FILES
    where large off_t's are enabled without any extra defines, hints
    or additional functions.  This is binary compatible, but apps
    may need to be recompiled to take full advantage depending on how
    they detect this feature.  [William Rowe]

  *) Implement apr_atomic_casptr() and apr_atomic_xchgptr() for z/OS.
    [David Jones <oscaremma gmail.com>]

  *) Introduce apr_file_pipe_create_ex() to portably permit one pipe
    end or another to be entirely blocking for non-APR applications
    (e.g. stdio streams) and the other (or both ends) non blocking,
    with a timeout of 0 by default.
    [William Rowe]

  *) apr_procattr_io_set() on Windows: Set non-blocking pipe handles
    to a default timeout of 0, following the Unix default.  No effect
    on pipe handles configured to block.  PR 43522.
    [Eric Covener <covener gmail.com>]

  *) apr_file_write() on Windows: Fix return code when writing to a non-
    blocking pipe would have blocked.  PR 43563.
    [Eric Covener <covener gmail.com>]

  *) Introduce APR_NO_FILE as an option to apr_procattr_io_set() for any
    of the three stdio streams to cause the corresponding streams to be
    closed to the child process.  This becomes effective in 1.3.0 across
    platforms (equivilant to APR_NO_PIPE in 1.2.x except on Win32.)
    [William Rowe]

  *) Solve WinNT inherited pipe leaks by mutexing apr_proc_create calls,
    on WinNT (not WinCE, nor 9x) so that we toggle the inherited state
    of the stdin/out/err pipes.  All other file handles are treated as
    not-inherited until apr_file_dup2'ed a std handle of this process,
    or while they are used by apr_proc_create.  [William Rowe]

  *) Define the Mac OS/X filesystem_encoding as utf-8 (in previous
    releases the interpretation would vary).  [Branko Čibej]

  *) Add table cloning (deep copy) convenience function.
    [Davi Arnaut]

  *) Rework the WIN32 CV code to signal the condition only if one or
    more threads are blocked on the condition variable. If no threads
    are waiting on the condition variable, nothing happens. The change
    also eliminates the thundering-herd problem of the manual-reset
    event, which (theoretically) wakes up all threads waiting on. Now
    the behavior of the CV's should be the same on Unix and win32
    platforms. PR 42305.  [Davi Arnaut]

  *) Define SEM_FAILED if it isn't already defined, as the proc mutex
    code already does it. Also search for the sem_open function in
    the realtime library. (This fixes HP-UX sem_open detection).
    [Davi Arnaut]

  *) Define the _HPUX_SOURCE feature test macro to obtain maximum
    functionality.
    PR 42261.  [Davi Arnaut]

  *) Stop invoking the testshm* helpers upon 'make test' invocation.
    [Kurt Miller <kurt intricatesoftware.com>]

  *) Register a cleanup only if APR_FILE_NOCLEANUP was not flagged in
    apr_file_mktemp. [Brian J. France <list firehawksystems.com>]

  *) Numerous build fixes for non-GCC builds and GCC builds on Win32,
    as well as WinCE builds.  [Davi Arnaut <davi haxent.com.br>,
    Curt Arnold <carnold apache.org>, John Mark Vandenberg,
    Kouhei Sutou <kou cozmixng.org>, William Rowe]

  *) Discard file buffers when running cleanups for exec.
    PR 41119.  [Davi Arnaut <davi haxent.com.br>, Bojan Smojver]

  *) Improve thread safety of assorted file_io functions.
    PR 42400.  [Davi Arnaut <davi haxent.com.br>]

  *) Add the apr_pollcb API as an alternative more efficient method
    of polling sockets, compared to apr_pollset. [Paul Querna]

  *) Fix possible crash in apr_pool_initialize() when built with
    verbose pool debugging.  PR 41063.
    [Peter Steiner <peter.steiner+apache hugwi.ch>]

  *) Fix --disable-ipv6 build on platforms with getifaddrs().
    PR 39199.  [Joe Orton]

  *) Correctly retrieve 'empty' environment values with apr_env_get
    on Win32 (e.g. "VAR="), and added validation to testall suite.
    PR 40764.  [Issac Goldstand <margol beamartyr.net>]

  *) Portably check for EEXIST in mktemp code.  PR 40818
    [Kenneth Golomb <KGolomb TradeCard.com>]

  *) Fix apr_socket_recvfrom() to ensure the peer's address is returned
    through the "from" parameter.  [Joe Orton]

  *) Fix error checking in kqueue, epoll and event port versions of
    apr_pollset_create.  PR 40660, 40661, 40662
    [Larry Cipriani <lvc lucent.com>]

  *) Add some documentation on the format matched by apr_fnmatch.
    [David Glasser <glasser mit.edu>]

  *) Add apr_hash_clear.  [Daniel L. Rall <dlr apache.org>]

  *) Don't try to build apr_app.c on MinGW.
    [Matthias Miller <Blog outofhanwell.com>]

  *) Fix the timeout converstion in apr_pollset with the KQueue
    backend. [Marco Molteni <mmolteni cisco.com>]

  *) Support MinGW.  [John Vandenberg, Justin Erenkrantz]

  *) Implement apr_thread_yield on Unix in terms of pthread_yield or
    sched_yield. [Keisuke Nishida <keisuke.nishida gmail.com>]

  *) Provide folding in autogenerated .manifest files for Win32 builders
    using VisualStudio 2005  [William Rowe]

  *) Utilise Solaris' native atomic_* functions for apr_atomics
    where appropriate. [Colm MacCárthaigh]

  *) Make apr_socket_recvfrom initialize the port field in the from
    sockaddr.  PR 39325 [Anthony Minessale <anthmct yahoo.com>]

  *) NetBSD: Avoid leaving zombie process when using apr_signal()
    to ignore SIGCHLD.  PR 36750.  [Todd Vierling <tv pobox.com>]

  *) Implement support for apr_proc_mutex_trylock() on Unix platforms.
    PR 38785.  [Chris Darroch <chrisd pearsoncmg.com>]

  *) APR_FIND_APR macro now supports customisable detailed checks on
    each installed apr. [Justin Erenkrantz, Colm MacCárthaigh]

  *) APR_FIND_APR macro no longer checks /usr/local/apache2/
    [Colm MacCárthaigh]

  *) Add APR_POLLSET_NOCOPY option to apr_pollset API to eliminate
    O(n)-time lookup in apr_pollset_remove() (currently implemented
    only for epoll).  [Brian Pane]

  *) Add apr_file_buffer_set() and apr_file_buffer_size_get() functions
    to support variable buffer sizes with APR file handles.
    [Colm MacCárthaigh]

  *) Add apr_file_open_flags_std[err|out|in]() functions.
    [Colm MacCárthaigh]

  *) stdio: apr_file_open_std[err|out|in]() functions now set the APR_WRITE
    or APR_READ flag as appropriate. [Colm MacCárthaigh]

  *) multicast: apr_mcast_*() no longer return APR_ENOTIMPL when invoked
    for non-UDP/RAW sockets. The caller is expected to ensure that the
    socket-type is suitable for multicast. [Colm MacCárthaigh]

  *) Add apr_sockaddr_ip_getbuf() function.  [Joe Orton]

  *) Fix handling of %pI in apr_psprintf.  [Joe Orton]

  *) Provide APR_VERSION_AT_LEAST() macro for applications which
    want to enable features based on a required level of APR.
    [Jeff Trawick]

  *) jlibtool: Teach to use static libraries with -static.
    [Justin Erenkrantz]

  *) Fix checks for alloca() support in configure.  PR 13037.
    [Noah Misch <noah cs.caltech.edu>]

  *) Add %pm support to apr_snprintf() for printing the error string
    corresponding to an apr_status_t value.  [Joe Orton]

  *) Add APR_ARRAY_IDX() and APR_ARRAY_PUSH() convenience macros to
    apr_tables.h.  [Garrett Rooney]

(wiz)