* generic/tclInterp.c (Tcl_GetAlias): fix for [Bug 1882373]
* generic/regguts.h, generic/regc_color.c, generic/regc_nfa.c:
Fixes for problems created when processing regular expressions that
generate very large automata. An enormous number of thanks to Will
Drewry <wad@google.com>, Tavis Ormandy <taviso@google.com>, and Tom
Lane <tgl@sss.pgh.pa.us> from the Postgresql crowd for their help in
tracking these problems down. [Bug 1810264]
* unix/tclUnixCompat.c (TclpGetHostByName): Really applied
the change noted on 2007-11-13 by dkf below.
* generic/tclIOUtil.c (TclGetOpenMode): Only set the O_APPEND flag
* tests/ioUtil.test (ioUtil-4.1): on a channel for the 'a'
mode and not for 'a+'. [Bug 1773127] (backport from HEAD)
* generic/tclCmdIL.c (Tcl_LsearchObjCmd): Prevent shimmering crash
when -exact and -integer/-real are mixed. [Bug 1844789]
* generic/tclThread.c: Back-port locking changes from Tcl8.5
in Tcl_Mutex/ConditionFinlize. Now we properly master-lock
the finalization of sync primitives.
* generic/regc_nfa.c: Fixed infinite loop in the regexp compiler
* generic/regcomp.c: [Bug 1810038]. Corrected looping logic in
* tests/regexp.test: fixempties() to avoid wasting time walking a
list of dead states [Bug 1832612]. Convert optst() from expensive
no-op to a cheap no-op. Improve newline usage in debug output.
* unix/tclUnixCompat.c (TclpGetHostByName): The six-argument form of
getaddressbyname_r() uses the fifth argument to indicate whether the
lookup succeeded or not on at least one platform. [Bug 1618235]
* generic/regc_lex.c (lexescape): Ensure that backreference numbers
can't overflow a signed int in a way that breaks things. [Bug 1810264]
* generic/tclParse.c (Tcl_ParseBraces): fix for possible read
after the end of buffer, [Bug 1813528] (Joe Mistachkin).
* generic/tclObj.c (Tcl_FindCommandFromObj): fix finding a deleted
command; cannot trigger this from Tcl itself, but crash reported
on xotcl. This check is new to 8.4 but exists in 8.5, so this is a
backport or something. Thanks Gustaf Neumann.
* generic/tcl.h (Tcl_DecrRefCount): Update change from 2006-05-29
to make macro more warning-robust in unbraced if code.
* Tk_PhotoPutBlock performance restored (JPEG image loading).
* [namespace inscope] change reverted; harmed Itcl.
* Made [expr {srand(.)}] accept wide integer argument.
* Made [lappend $invalidList] raise an error.
* Improved [text] delete performance.
* Support for the WM_UNICHAR window message on Windows
* Stopped excess variable writes by [scale].
* Tcl_Main no longer blocks main loop start for one interactive command.
* [console] made thread safe.
* Thread-enabled configuration uses MT-safe system calls.
* Many Aqua/Tk bug fixes and improvements, see changes file.
* Made unthreaded notifier naked-fork-safe on Darwin.
* Support for weak linking on Mac OS X.
* msgcat support for CFLocale on Darwin (msgcat 1.3.4)
* Fixed crashes due to alignment issues in encoding translation routines.
* Fixed crash with [listbox -listvariable] on namespace variable.
* Fixed crash when Tcl_DeleteTrace changes proc on the active stack.
* Fixed crash when normalizing filesystem pathnames.
* Fixed crash due to invalid font name from XServer.
* Several 64-bit bugs fixed and platform support enhanced.
* Win NT/XP: unicode console support taken back out.
* ${prefix}/share addition to ::tcl_pkgPath undone.
* Warning message for packages with incorrect index scripts silenced.
* Correct syntax error in configure script (bash 3.1 exposes it).
* Tk incompatibilities with SCIM resolved.
* Improved [file writable] support of Windows conventions.
* Tcl_GetIndexFromObj() support for exact matching of empty key.
* Tk Portuguese localization support (pt.msg).
* Tk more robust when X server does not recognize color name "Black".
* Tk_PhotoPutBlock() performance improvement.
* [lsearch -start $pastEnd] no longer finds match at end of list.
* Correct [expr abs($LONG_MIN)] result.
* Correct [string range] failures on some strings containing \x00.
* TCL_EVAL_GLOBAL and [uplevel 0] agreement when traces or [unknown] active.
* Corrections to context of auto-loading the target of an interp alias.
* Corrected some interference between enter and enterstep traces.
* Correct [$img configure -data] failure to change X display.
* Tk_GetBitmapFromData() thread safety.
* Crashes in [grid] for some invalid index arguments.
* Crash when all content of a [text] is elided.
* Crash in [$text edit undo/redo].
* Crash in animated GIF display with variable frame size.
* Crash related to pipe usage in thread-enabled Tcl on Windows.
* Crash when [$text dump -command] changes contents while dumping.
* Crash reading utf-8 when multibyte char spans multiple buffers at EOF.
* Several finalization crashes corrected.
* Repeated [namespace import] of same command now permitted.
* ${prefix}/share added to ::tcl_pkgPath on some systems.
* [exec]'s >> redirection has improved append behavior.
* [info globals] returned only existing variables.
* Recognize some Solaris variations of the cp1251 encoding.
* Addressed [file mkdir] race condition.
* Support opening >2GB files on RHEL 3.
* Corrections to $argv formatting when [encoding system] is multibyte.
* http 2.5.2: Update URL encoding rules to RFC 3986.
* Fixed issue in recursive file delete with NFS lock files.
* Stopped crash after use of Tcl_TraceCommand().
* Win NT/XP: support unicode console.
* Improved support for Tclkit to set [encoding system].
* Added Korean timezone abbreviations.
* Windows: exit codes can now exceed -128..127 range.
* [load] support on LynxOS.
* Packages with incorrect index scripts now cause a warning to be logged.
*** POTENTIAL INCOMPATIBILITY ***
* [lsearch -regexp] now accepts backrefs in the RE.
* [selection get] made compatible with OpenOffice.org.
* Dialog support for widget names containing spaces.
* Improved Tk window manager event interaction on OS X Aqua.
