And the last bits that need fixing; the code is still less efficient than desired but should now not crash.

Fix handling of 'invokeExpanded' and start to do 'returnStk'.
Added missing exception range finalize.
2013-10-20 18:11:35 +00:00 · 2013-10-19 14:11:28 +00:00 · 2013-10-19 12:29:06 +00:00 · 2013-10-19 11:20:46 +00:00 · 2013-10-18 07:08:46 +00:00 · 2013-10-15 00:27:56 +00:00
178 changed files with 5731 additions and 4374 deletions
@@ -1,3 +1,109 @@
+A NOTE ON THE CHANGELOG:
+Starting in early 2011, Tcl source code has been under the management of
+fossil, hosted at http://core.tcl.tk/tcl/ .  Fossil presents a "Timeline"
+view of changes made that is superior in every way to a hand edited log file.
+Because of this, many Tcl developers are now out of the habit of maintaining
+this log file.  You may still find useful things in it, but the Timeline is
+a better first place to look now.
+============================================================================
+
+2013-09-19  Don Porter  <dgp@users.sourceforge.net>
+
+	*** 8.6.1 TAGGED FOR RELEASE ***
+
+	* generic/tcl.h:	Bump version number to 8.6.1.
+	* library/init.tcl:
+	* unix/configure.in:
+	* win/configure.in:
+	* unix/tcl.spec:
+	* README:
+
+	* unix/configure:	autoconf-2.59
+	* win/configure:
+
+2013-09-19  Donal Fellows  <dkf@users.sf.net>
+
+	* doc/next.n (METHOD SEARCH ORDER): Bug [3606943]: Corrected
+	description of method search order.
+
+2013-09-18  Donal Fellows  <dkf@users.sf.net>
+
+	Bump TclOO version to 1.0.1 for release.
+
+2013-09-17  Donal Fellows  <dkf@users.sf.net>
+
+	* generic/tclBinary.c (BinaryEncodeUu, BinaryDecodeUu): [Bug 2152292]:
+	Corrected implementation of the core of uuencode handling so that the
+	line length processing is correctly applied.
+	***POTENTIAL INCOMPATIBILITY***
+	Existing code that was using the old versions and working around the
+	limitations will now need to do far less. The -maxlen option now has
+	strict limits on the range of supported lengths; this is a limitation
+	of the format itself.
+
+2013-09-09  Donal Fellows  <dkf@users.sf.net>
+
+	* generic/tclOOMethod.c (CloneProcedureMethod): [Bug 3609693]: Strip
+	the internal representation of method bodies during cloning in order
+	to ensure that any bound references to instance variables are removed.
+
+2013-09-01  Donal Fellows  <dkf@users.sf.net>
+
+	* generic/tclBinary.c (BinaryDecodeHex): [Bug b98fa55285]: Ensure that
+	whitespace at the end of a string don't cause the decoder to drop the
+	last decoded byte.
+
+2013-08-03  Donal Fellows  <dkf@users.sf.net>
+
+	* library/auto.tcl: [Patch 3611643]: Allow TclOO classes to be found
+	by the autoloading mechanism.
+
+2013-08-02  Donal Fellows  <dkf@users.sf.net>
+
+	* generic/tclOODefineCmds.c (ClassSuperSet): Bug [9d61624b3d]: Stop
+	crashes when emptying the superclass slot, even when doing elaborate
+	things with metaclasses.
+
+2013-08-01  Harald Oehlmann  <oehhar@users.sf.net>
+
+	* tclUnixNotify.c (Tcl_InitNotifier): Bug [a0bc856dcd]: Start notifier
+	thread again if we were forked, to solve Rivet bug 55153.
+
+2013-07-05  Kevin B. Kenny  <kennykb@acm.org>
+
+	* library/tzdata/Africa/Casablanca:
+	* library/tzdata/America/Asuncion:
+	* library/tzdata/Antarctica/Macquarie:
+	* library/tzdata/Asia/Gaza:
+	* library/tzdata/Asia/Hebron:
+	* library/tzdata/Asia/Jerusalem:
+	http://www.iana.org/time-zones/repository/releases/tzdata2013d.tar.gz
+
+2013-07-03  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* unix/tclXtNotify.c: Bug [817249]: bring tclXtNotify.c up to date with
+	Tcl_SetNotifier() change.
+
+2013-07-02  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* unix/tcl.m4:  Bug [32afa6e256]: dirent64 check is incorrect in tcl.m4
+	* unix/configure: (thanks to Brian Griffin)
+
+2013-06-27  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* generic/tclConfig.c: Bug [9b2e636361]: Tcl_CreateInterp() needs
+	* generic/tclMain.c:   initialized encodings.
+
+2013-06-18  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* generic/tclEvent.c: Bug [3611974]: InitSubsystems multiple thread
+	issue.
+
+2013-06-17  Jan Nijtmans  <nijtmans@users.sf.net>
+
+	* generic/regc_locale.c: Bug [a876646efe]: re_expr character class
+	[:cntrl:] should contain \u0000 - \u001f
+
 2013-06-09  Donal K. Fellows  <dkf@users.sf.net>

 	* generic/tclCompCmdsSZ.c (TclCompileTryCmd): [Bug 779d38b996]:
@@ -103,10 +209,10 @@

 	* generic/tclStubInit.c: Add support for Cygwin64, which has a 64-bit
 	* generic/tclDecls.h: "long" type. Binary compatibility with win64
-	requires that all stub entries use 32-bit long's, therefore the
-	need for various wrapper functions/macros. For Tcl 9 a better
-	solution is needed, but that cannot be done without introducing
-	binary incompatibility.
+	requires that all stub entries use 32-bit long's, therefore the need
+	for various wrapper functions/macros. For Tcl 9 a better solution is
+	needed, but that cannot be done without introducing binary
+	incompatibility.

 2013-04-30  Andreas Kupries  <andreask@activestate.com>

@@ -124,8 +230,8 @@

 	* generic/tclDecls.h: Implement Tcl_NewBooleanObj, Tcl_DbNewBooleanObj
 	and Tcl_SetBooleanObj as macros using Tcl_NewIntObj, Tcl_DbNewLongObj
-	and Tcl_SetIntObj. Starting with Tcl 8.5, this is exactly the same,
-	it only eliminates code duplication.
+	and Tcl_SetIntObj. Starting with Tcl 8.5, this is exactly the same, it
+	only eliminates code duplication.
 	* generic/tclInt.h: Eliminate use of NO_WIDE_TYPE everywhere: It's
 	exactly the same as TCL_WIDE_INT_IS_LONG

@@ -1,8 +1,7 @@
 README:  Tcl
-    This is the Tcl 8.6.0 source distribution.
-	http://tcl.sourceforge.net/
-    You can get any source release of Tcl from the file distributions
-    link at the above URL.
+    This is the Tcl 8.6.1 source distribution.
+	http://sourceforge.net/projects/tcl/files/Tcl/
+    You can get any source release of Tcl from the URL above.

 Contents
 --------
@@ -27,9 +26,14 @@ Tcl can also be used for a variety of web-related tasks and for creating
 powerful command languages for applications.

 Tcl is maintained, enhanced, and distributed freely by the Tcl community.
-The home for Tcl/Tk releases and bug/patch database is on SourceForge:
+Source code development and tracking of bug reports and feature requests
+takes place at:

-	http://tcl.sourceforge.net/
+	http://core.tcl.tk/
+
+Tcl/Tk release and mailing list services are hosted by SourceForge:
+
+	http://sourceforge.net/projects/tcl/

 with the Tcl Developer Xchange hosted at:

@@ -49,7 +53,7 @@ The home page for this release, including new features, is

 Detailed release notes can be found at the file distributions page
 by clicking on the relevant version.
-	http://sourceforge.net/projects/tcl/files/
+	http://sourceforge.net/projects/tcl/files/Tcl/

 Information about Tcl itself can be found at
 	http://www.tcl.tk/about/
@@ -146,18 +150,13 @@ and go to the Mailing Lists page.
 ------------------------

 We are very interested in receiving bug reports, patches, and suggestions
-for improvements.  We prefer that you send this information to us via the
-bug form at SourceForge, rather than emailing us directly.  The bug
-database is at:
+for improvements.  We prefer that you send this information to us as
+tickets entered into our tracker at:

-	http://tcl.sourceforge.net/
-
-The bug form was designed to give uniform structure to bug reports as
-well as to solicit enough information to minimize followup questions.
+	http://core.tcl.tk/tcl/reportlist

 We will log and follow-up on each bug, although we cannot promise a
-specific turn-around time.  Enhancements, reported via the Feature
-Requests form at the same web site, may take longer and may not happen
+specific turn-around time.  Enhancements may take longer and may not happen
 at all unless there is widespread support for them (we're trying to
 slow the rate at which Tcl/Tk turns into a kitchen sink).  It's very
 difficult to make incompatible changes to Tcl/Tk at this point, due to
@@ -8164,6 +8164,143 @@ Dropped support for OS X versions less than 10.4 (Tiger) (fellows)

 --- Released 8.6.0, December 20, 2012 --- See ChangeLog for details ---

-2013-05-08 (bug fix)[3036566] Honor language packs on Vista+ to get initial locale (oehlmann)
+2012-12-22 (bug fix)[3598150] DString to Tcl_Obj memleak (afredd)
+
+2012-12-27 (bug fix)[3598580] Tcl_ListObjReplace() refcount fix (nijtmans)
+
+2013-01-04 (bug fix) memleak in [format] compiler (fellows)
+
+2013-01-08 (bug fix)[3092089,3587096] [file normalize] on junction points
+
+2013-01-09 (bug fix)[3599395] status line processing (nijtmans)
+2013-01-23 (bug fix)[2911139] repair async connection management (fellows)
+=> http 2.8.6
+
+2013-01-26 (bug fix)[3601804] Darwin segfault platformCPUID (nijtmans)
+
+2013-01-28 (enhancement) improve ensemble bytecode (fellows)
+
+2013-01-30 (enhancement) selected script code improvements (fradin)
+=> tcltest 2.3.6
+
+2013-01-30 (bug fix)[3599098] update to handle glibc banner changes (kupries)
+=> platform 1.0.11
+
+2013-01-31 (bug fix)[3598282] make install DESTDIR support (cassoff)
+
+2013-02-05 (bug fix)[3603434] [file normalize a:/] flaw in VFS (porter,griffin)
+
+2013-02-09 (bug fix)[3603695] $obj varname resolution rules (venable,fellows)
+
+2013-02-11 (bug fix)[3603553] zlib flushing errors (vampiera,fellows)
+
+2013-02-14 (bug fix)[3604576] msgcat use of Windows registry (oehlmann,nijtmans)
+=> msgcat 1.5.1
+
+2013-02-19 (bug fix)[2438181] report errors in trace handlers (yorick)
+
+2013-02-21 (bug fix)[3605447] unbreak [namespace export -clear] (porter)
+
+2013-02-23 (bug fix)[3599194] fallback IPv6 routines (afredd,max)
+
+2013-02-27 (bug fix)[3606139] stop crash in [regexp] (lane)
+
+2013-03-03 (bug fix)[3606258] major serial port update (english)
+
+2013-03-06 (bug fix)[3606683] [regexp (((((a)*)*)*)*)* {}] hangs
+(grathwohl,lane,porter)
+
+2013-03-12 (enhancement) better build support for Debian arch (shadura)
+
+2013-03-19 (bug fix)[2893771] [file stat] on locked files (thoyts,nijtmans)
+
+2013-03-21 (bug fix)[2102614] [auto_mkindex] ensemble support (griffin)
+
+2013-03-27 Tcl_Zlib*() routines tolerate NULL interps (porter
+
+2013-04-04 (bug fix) Support URLs with query but no path (max)
+=> http 2.8.7
+
+2013-04-08 (bug fix)[3610026] regexp crash on color overflow (linnakangas)
+
+2013-04-29 (enhancement) [array set] compile improvement (fellows)
+
+2013-04-30 (enhancement) broaden glibc version detection (kupries)
+=> platform 1.0.12
+
+2013-05-06 (platform support) Cygwin64 (nijtmans)
+
+2013-05-15 (enhancement) Improved [list {*}...] compile (fellows)
+
+2013-05-16 (platform support) mingw-4.0 (nijtmans)
+
+2013-05-19 (platform support) FreeBSD updates (cerutti)
+
+2013-05-20 (bug fix)[3613567] access error temp file creation (keene)
+
+2013-05-20 (bug fix)[3613569] temp file open fail can crash [load] (keene)
+
+2013-05-22 (bug fix)[3613609] [lsort -nocase] failed on non-ASCII (fellows)
+
+2013-05-28 (bug fix)[3036566] Use language packs (Vista+) locale (oehlmann)
 => msgcat 1.5.2

+2013-05-29 (bug fix)[3614102] [apply {{} {list [if 1]}}] stack woes (porter)
+
+2013-06-03 Restored lost performance appending to long strings (elby,porter)
+
+2013-06-05 (bug fix)[2835313] [while 1 {foo [continue]}] crash (fellows)
+
+2013-06-17 (bug fix)[a876646] [:cntrl:] includes \x00 to \x1f (nijtmans)
+
+2013-06-27 (bug fix)[983509] missing encodings for config values (nijtmans)
+
+2013-06-27 (bug fix)[34538b] apply DST in 2099 (lang)
+
+2013-07-02 (bug fix)[32afa6] corrected dirent64 check (griffin)
+
+2013-07-06 tzdata updated to Olson's tzdata2013d (kenny)
+
+2013-07-10 (bug fix)[86fb5e] [info frame] in compiled ensembles (porter)
+
+2013-07-18 (bug fix)[1c17fb] revisd syntax errorinfo that shows error (porter)
+
+2013-07-26 (bug fix)[6585b2] regexp {(\w).*?\1} abb (lane)
+
+2013-07-29 [string is space \u202f] => 1 (nijtmans)
+
+2013-08-01 [a0bc85] Limited support for fork with threads (for Rivet) (nijtmans)
+
+2013-08-01 (bug fix)[1905562] RE recursion limit increased to support
+reported usage of large expressions (porter)
+
+2013-08-02 (bug fix)[9d6162] superclass slot empty crash (vdgoot,fellows)2013-08-02 (bug fix)[9d6162] superclass slot empty crash (vdgoot,fellows)
+
+2013-08-03 (enhancement)[3611643] [auto_mkindex] support TclOO (fellows)
+
+2013-08-14 (bug fix)[a16752] Missing command delete callbacks (porter)
+
+2013-08-15 (bug fix)[3610404] reresolve traced forwards (porter)
+
+2013-08-15 Errors from execution traces become errors of the command (porter)
+
+2013-08-23 (bug fix)[8ff0cb9] Tcl_NR*Eval*() schedule only, as doc'd (porter)
+
+2013-08-29 (bug fix)[2486550] enable [interp invokehidden {} yield] (porter)
+
+2013-09-01 (bug fix)[b98fa55] [binary decode] fail on whitespace (reche,fellows)
+
+2013-09-07 (bug fix)[86ceb4] have tm path favor first provider (neumann,porter)
+
+2013-09-09 (bug fix)[3609693] copied object member variable confusion (fellows)
+=> TclOO 1.0.1
+
+2013-09-17 (bug fix)[2152292] [binary encode uuencode] corrected (fellows)
+
+2013-09-19 (bug fix)[3487626] segfaults in [dict] compilers (porter)
+
+2013-09-19 (bug fix)[31661d2] mem leak in [lreplace] (ade,porter)
+
+Many optmizations, improvements, and tightened stack management in bytecode.
+
+--- Released 8.6.1, Septemer 20, 2013 --- http://core.tcl.tk/tcl/ for details 
@@ -176,16 +176,16 @@ these return options.
 The \fB\-errorinfo\fR option holds a stack trace of the
 operations that were in progress when an error occurred,
 and is intended to be human-readable.
-The \fB\-errorcode\fR option holds a list of items that
+The \fB\-errorcode\fR option holds a Tcl list of items that
 are intended to be machine-readable.
 The first item in the \fB\-errorcode\fR value identifies the class of
 error that occurred
-(e.g. POSIX means an error occurred in a POSIX system call)
+(e.g., POSIX means an error occurred in a POSIX system call)
 and additional elements hold additional pieces
 of information that depend on the class.
-See the \fBtclvars\fR manual entry for details on the various
-formats for the \fB\-errorcode\fR option used by
-Tcl's built-in commands.
+See the manual entry on the \fBerrorCode\fR variable for details on the
+various formats for the \fB\-errorcode\fR option used by Tcl's built-in
+commands.
 .PP
 The \fB\-errorinfo\fR option value is gradually built up as an
 error unwinds through the nested operations.
@@ -307,6 +307,6 @@ so they continue to hold a record of information about the
 most recent error seen in an interpreter.
 .SH "SEE ALSO"
 Tcl_DecrRefCount(3), Tcl_IncrRefCount(3), Tcl_Interp(3), Tcl_ResetResult(3),
-Tcl_SetErrno(3), tclvars(n)
+Tcl_SetErrno(3), errorCode(n), errorInfo(n)
 .SH KEYWORDS
 error, value, value result, stack, trace, variable
@@ -111,7 +111,7 @@ function. Note that the Tcl_Obj reference returned by \fBTcl_GetObjectName\fR
 is a shared reference.
 .PP
 Instances of classes are created using \fBTcl_NewObjectInstance\fR, which
-takes creates an object from any class (and which is internally called by both
+creates an object from any class (and which is internally called by both
 the \fBcreate\fR and \fBnew\fR methods of the \fBoo::class\fR class). It takes
 parameters that optionally give the name of the object and namespace to
 create, and which describe the arguments to pass to the class's constructor
@@ -41,8 +41,9 @@ may only be passed to Tcl routines called from the same thread as
 the original \fBTcl_CreateInterp\fR call.  It is not safe for multiple
 threads to pass the same token to Tcl's routines.
 The new interpreter is initialized with the built-in Tcl commands
-and with the variables documented in the \fBtclvars\fR manual page. To bind in
-additional commands, call \fBTcl_CreateCommand\fR.
+and with standard variables like \fBtcl_platform\fR and \fBenv\fR. To
+bind in additional commands, call \fBTcl_CreateCommand\fR, and to
+create additional variables, call \fBTcl_SetVar\fR.
 .PP
 \fBTcl_DeleteInterp\fR marks an interpreter as deleted; the interpreter
 will eventually be deleted when all calls to \fBTcl_Preserve\fR for it have
@@ -144,6 +145,6 @@ should be used to determine when an interpreter is a candidate for deletion
 due to inactivity.
 .VE 8.6
 .SH "SEE ALSO"
-Tcl_Preserve(3), Tcl_Release(3), tclvars(n)
+Tcl_Preserve(3), Tcl_Release(3)
 .SH KEYWORDS
 command, create, delete, interpreter
@@ -33,6 +33,6 @@ Tcl-based applications using \fBputenv\fR should redefine it to
 \fBTcl_PutEnv\fR so that they will interface properly to the Tcl
 runtime.
 .SH "SEE ALSO"
-tclvars(n)
+env(n)
 .SH KEYWORDS
 environment, variable
@@ -172,8 +172,9 @@ typedef struct {
 .PP
 The \fIversion\fR field allows for future expansion of the structure, and
 should always be declared equal to TCL_OO_METHOD_VERSION_CURRENT. The
-\fIname\fR field provides a human-readable name for the type, and is reserved
-for debugging.
+\fIname\fR field provides a human-readable name for the type, and is the value
+that is exposed via the \fBinfo class methodtype\fR and
+\fBinfo object methodtype\fR Tcl commands.
 .PP
 The \fIcallProc\fR field gives a function that is called when the method is
 invoked; it must never be NULL.
@@ -8,7 +8,7 @@
 .TH NRE 3 8.6 Tcl "Tcl Library Procedures"
 .BS
 .SH NAME
-Tcl_NRCreateCommand, Tcl_NRCallObjProc, Tcl_NREvalObj, Tcl_NREvalObjv, Tcl_NRCmdSwap, Tcl_NRAddCallback \- Non-Recursive (stackless) evaluation of Tcl scripts.
+Tcl_NRCreateCommand, Tcl_NRCallObjProc, Tcl_NREvalObj, Tcl_NREvalObjv, Tcl_NRCmdSwap, Tcl_NRExprObj, Tcl_NRAddCallback \- Non-Recursive (stackless) evaluation of Tcl scripts.
 .SH SYNOPSIS
 .nf
 \fB#include <tcl.h>\fR
@@ -207,7 +207,7 @@ is something like:
 .PP
 .CS
 int
-\fITheCmdObjProc\fR(
+\fITheCmdOldObjProc\fR(
    ClientData clientData,
    Tcl_Interp *interp,
    int objc,
@@ -225,7 +225,7 @@ int
    return result;
 }
 \fBTcl_CreateObjCommand\fR(interp, "theCommand",
-        \fITheCmdObjProc\fR, clientData, TheCmdDeleteProc);
+        \fITheCmdOldObjProc\fR, clientData, TheCmdDeleteProc);
 .CE
 .PP
 To enable a command like this one for trampoline-based evaluation,
@@ -255,8 +255,8 @@ int
    int objc,
    Tcl_Obj *const objv[])
 {
-    return \fBTcl_NRCallObjProc\fR(interp, name,
-            \fITheCmdNRObjProc\fR, clientData, objc, objv);
+    return \fBTcl_NRCallObjProc\fR(interp, \fITheCmdNRObjProc\fR, 
+            clientData, objc, objv);
 }
 .CE
 .PP
@@ -317,7 +317,7 @@ and the second is for use when there is already a trampoline in place.
 .PP
 .CS
 \fBTcl_NRCreateCommand\fR(interp, "theCommand",
-        \fITheCmdObjProc\fR, \fITheCmdNRObjProc\fR, clientData,
+        \fITheCmdNewObjProc\fR, \fITheCmdNRObjProc\fR, clientData,
        TheCmdDeleteProc);
 .CE
 .SH "SEE ALSO"
@@ -0,0 +1,54 @@
+'\"
+'\" Copyright (c) 2012 Donal K. Fellows
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\"
+.so man.macros
+.TH Tcl_OOInitStubs 3 1.0 TclOO "TclOO Library Functions"
+.BS
+'\" Note:  do not modify the .SH NAME line immediately below!
+.SH NAME
+Tcl_OOInitStubs \- initialize library access to TclOO functionality
+.SH SYNOPSIS
+.nf
+\fB#include <tclOO.h>\fR
+.sp
+const char *
+\fBTcl_OOInitStubs\fR(\fIinterp\fR)
+.fi
+.SH ARGUMENTS
+.AS Tcl_Interp *interp in
+.AP Tcl_Interp *interp in
+The Tcl interpreter that the TclOO API is integrated with and whose C
+interface is going to be used.
+.BE
+.SH DESCRIPTION
+.PP
+When an extension library is going to use the C interface exposed by TclOO, it
+should use \fBTcl_OOInitStubs\fR to initialize its access to that interface
+from within its \fI*\fB_Init\fR (or \fI*\fB_SafeInit\fR) function, passing in
+the \fIinterp\fR that was passed into that routine as context. If the result
+of calling \fBTcl_OOInitStubs\fR is NULL, the initialization failed and an
+error message will have been left in the interpreter's result. Otherwise, the
+initialization succeeded and the TclOO API may thereafter be used; the
+version of the TclOO API is returned.
+.PP
+When using this function, either the C #define symbol \fBUSE_TCLOO_STUBS\fR
+should be defined and your library code linked against the Tcl stub library,
+or that #define symbol should \fInot\fR be defined and your library code
+linked against the Tcl main library directly.
+.SH "BACKWARD COMPATIBILITY NOTE"
+.PP
+If you are linking against the Tcl 8.5 forward compatibility package for
+TclOO, \fIonly\fR the stub-enabled configuration is supported and you should
+also link against the TclOO independent stub library; that library is an
+integrated part of the main Tcl stub library in Tcl 8.6.
+.SH KEYWORDS
+stubs
+.SH "SEE ALSO"
+Tcl_InitStubs(3)
+.\" Local variables:
+.\" mode: nroff
+.\" fill-column: 78
+.\" End:
@@ -85,6 +85,9 @@ proc bgerror {message} {
 }
 .CE
 .SH "SEE ALSO"
-after(n), interp(n), tclvars(n)
+after(n), errorCode(n), errorInfo(n), interp(n)
 .SH KEYWORDS
 background error, reporting
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
@@ -36,6 +36,13 @@ The \fBbinary encode\fR and \fBbinary decode\fR subcommands convert
 binary data to or from string encodings such as base64 (used in MIME
 messages for example).
 .VE 8.6
+.PP
+Note that other operations on binary data, such as taking a subsequence of it,
+getting its length, or reinterpreting it as a string in some encoding, are
+done by other Tcl commands (respectively \fBstring range\fR,
+\fBstring length\fR and \fBencoding convertfrom\fR in the example cases).  A
+binary string in Tcl is merely one where all the characters it contains are in
+the range \eu0000\-\eu00FF.
 .SH "BINARY ENCODE AND DECODE"
 .VS 8.6
 .PP
@@ -95,13 +102,14 @@ between Unix systems and on USENET, but is less common these days, having been
 largely superseded by the \fBbase64\fR binary encoding.
 .RS
 .PP
-During encoding, the following options are supported:
-'\" This is wrong! The uuencode format had more complexity than this!
+During encoding, the following options are supported (though changing them may
+produce files that other implementations of decoders cannot process):
 .TP
 \fB\-maxlen \fIlength\fR
 .
 Indicates that the output should be split into lines of no more than
-\fIlength\fR characters. By default, lines are not split.
+\fIlength\fR characters. By default, lines are split every 61 characters, and
+this must be in the range 3 to 85 due to limitations in the encoding.
 .TP
 \fB\-wrapchar \fIcharacter\fR
 .
@@ -114,7 +122,11 @@ During decoding, the following options are supported:
 .TP
 \fB\-strict\fR
 .
-Instructs the decoder to throw an error if it encounters whitespace characters. Otherwise it ignores them.
+Instructs the decoder to throw an error if it encounters unexpected whitespace
+characters. Otherwise it ignores them.
+.PP
+Note that neither the encoder nor the decoder handle the header and footer of
+the uuencode format.
 .RE
 .VE 8.6
 .SH "BINARY FORMAT"
@@ -855,6 +867,7 @@ architectures, use their textual representation (as produced by
 .PP
 This is a procedure to write a Tcl string to a binary-encoded channel as
 UTF-8 data preceded by a length word:
+.PP
 .CS
 proc \fIwriteString\fR {channel string} {
    set data [encoding convertto utf-8 $string]
@@ -865,6 +878,7 @@ proc \fIwriteString\fR {channel string} {
 .PP
 This procedure reads a string from a channel that was written by the
 previously presented \fIwriteString\fR procedure:
+.PP
 .CS
 proc \fIreadString\fR {channel} {
    if {![\fBbinary scan\fR [read $channel 4] I length]} {
@@ -877,6 +891,7 @@ proc \fIreadString\fR {channel} {
 .PP
 This converts the contents of a file (named in the variable \fIfilename\fR) to
 base64 and prints them:
+.PP
 .CS
 set f [open $filename rb]
 set data [read $f]
@@ -884,9 +899,10 @@ close $f
 puts [\fBbinary encode\fR base64 \-maxlen 64 $data]
 .CE
 .SH "SEE ALSO"
-format(n), scan(n), tclvars(n)
+encoding(n), format(n), scan(n), string(n), tcl_platform(n)
 .SH KEYWORDS
 binary, format, scan
 '\" Local Variables:
 '\" mode: nroff
+'\" fill-column: 78
 '\" End:
@@ -115,7 +115,8 @@ if { [\fBcatch\fR {open $someFile w} fid] } {
 There are more complex examples of \fBcatch\fR usage in the
 documentation for the \fBreturn\fR command.
 .SH "SEE ALSO" 
-break(n), continue(n), dict(n), error(n), info(n), return(n), tclvars(n)
+break(n), continue(n), dict(n), error(n), errorCode(n), errorInfo(n), info(n),
+return(n)
 .SH KEYWORDS
 catch, error, exception
 '\" Local Variables:
@@ -75,7 +75,8 @@ However, the last line would now normally be written without
 set var [linsert $var 0 {*}$args]
 .CE
 .SH "SEE ALSO"
-catch(n), concat(n), error(n), interp(n), list(n), namespace(n), subst(n), tclvars(n), uplevel(n)
+catch(n), concat(n), error(n), errorCode(n), errorInfo(n), interp(n), list(n),
+namespace(n), subst(n), uplevel(n)
 .SH KEYWORDS
 concatenate, evaluate, script
 '\" Local Variables:
@@ -484,7 +484,7 @@ not the effective ones.
 .TP
 \fBWindows\fR\0\0\0\0
 .
-The \fbfile owned\fR subcommand currently always reports that the current user
+The \fBfile owned\fR subcommand currently always reports that the current user
 is the owner of the file, without regard for what the operating system
 believes to be true, making an ownership test useless. This issue (#3613671)
 may be fixed in a future release of Tcl.
@@ -296,7 +296,6 @@ Returns the name of the library directory in which standard Tcl
 scripts are stored.
 This is actually the value of the \fBtcl_library\fR
 variable and may be changed by setting \fBtcl_library\fR.
-See the \fBtclvars\fR manual entry for more information.
 .TP
 \fBinfo loaded \fR?\fIinterp\fR?
 .
@@ -336,8 +335,8 @@ described in \fBOBJECT INTROSPECTION\fR below.
 .TP
 \fBinfo patchlevel\fR
 .
-Returns the value of the global variable \fBtcl_patchLevel\fR; see
-the \fBtclvars\fR manual entry for more information.
+Returns the value of the global variable \fBtcl_patchLevel\fR, which holds
+the exact version of the Tcl library by default.
 .TP
 \fBinfo procs \fR?\fIpattern\fR?
 .
@@ -374,8 +373,8 @@ string is returned.
 .TP
 \fBinfo tclversion\fR
 .
-Returns the value of the global variable \fBtcl_version\fR; see
-the \fBtclvars\fR manual entry for more information.
+Returns the value of the global variable \fBtcl_version\fR, which holds the
+major and minor version of the Tcl library by default.
 .TP
 \fBinfo vars\fR ?\fIpattern\fR?
 .
@@ -763,8 +762,9 @@ proc getDef {obj method} {
 .VE 8.6
 .SH "SEE ALSO"
 .VS 8.6
-global(n), oo::class(n), oo::define(n), oo::object(n), proc(n), self(n)
+global(n), oo::class(n), oo::define(n), oo::object(n), proc(n), self(n),
 .VE 8.6
+tcl_library(n), tcl_patchLevel(n), tcl_version(n)
 .SH KEYWORDS
 command, information, interpreter, introspection, level, namespace,
 .VS 8.6
@@ -262,13 +262,17 @@ If set to any value, then \fBunknown\fR will not attempt to auto-load
 any commands.
 .TP
 \fBauto_path\fR
+.
 If set, then it must contain a valid Tcl list giving directories to
-search during auto-load operations.
+search during auto-load operations (including for package index
+files when using the default \fBpackage unknown\fR handler).
 This variable is initialized during startup to contain, in order:
 the directories listed in the \fBTCLLIBPATH\fR environment variable,
-the directory named by the \fBtcl_library\fR variable,
+the directory named by the \fBtcl_library\fR global variable,
 the parent directory of \fBtcl_library\fR,
 the directories listed in the \fBtcl_pkgPath\fR variable.
+Additional locations to look for files and package indices should
+normally be added to this variable using \fBlappend\fR.
 .TP
 \fBenv(TCL_LIBRARY)\fR
 If set, then it specifies the location of the directory containing
@@ -306,7 +310,7 @@ considered to be a word character.  On Windows platforms, words are
 comprised of any character that is not a space, tab, or newline.  Under
 Unix, words are comprised of numbers, letters or underscores.
 .SH "SEE ALSO"
-info(n), re_syntax(n), tclvars(n)
+env(n), info(n), re_syntax(n)
 .SH KEYWORDS
 auto-exec, auto-load, library, unknown, word, whitespace 
 '\"Local Variables:
@@ -62,14 +62,14 @@ The method chain is cached for future use.
 When constructing the method chain, method implementations are searched for in
 the following order:
 .IP [1]
-In the object.
-.IP [2]
 In the classes mixed into the object, in class traversal order. The list of
 mixins is checked in natural order.
-.IP [3]
+.IP [2]
 In the classes mixed into the classes of the object, with sources of mixing in
 being searched in class traversal order. Within each class, the list of mixins
 is processed in natural order.
+.IP [3]
+In the object itself.
 .IP [4]
 In the object's class.
 .IP [5]
@@ -77,7 +77,10 @@ In the superclasses of the class, following each superclass in a depth-first
 fashion in the natural order of the superclass list.
 .PP
 Any particular method implementation always comes as \fIlate\fR in the
-resulting list of implementations as possible.
+resulting list of implementations as possible; this means that if some class,
+A, is both mixed into a class, B, and is also a superclass of B, the instances
+of B will always treat A as a superclass from the perspective of inheritance.
+This is true even when the multiple inheritance is processed indirectly.
 .SS FILTERS
 .PP
 When an object has a list of filter names set upon it, or is an instance of a
@@ -317,8 +317,8 @@ proc myReturn {args} {
 }
 .CE
 .SH "SEE ALSO"
-break(n), catch(n), continue(n), dict(n), error(n), proc(n),
-source(n), tclvars(n), throw(n), try(n)
+break(n), catch(n), continue(n), dict(n), error(n), errorCode(n),
+errorInfo(n), proc(n), source(n), throw(n), try(n)
 .SH KEYWORDS
 break, catch, continue, error, exception, procedure, result, return
 .\" Local Variables:
@@ -102,7 +102,9 @@ but also the disadvantage of making it harder to write scripts that
 start up uniformly across different versions of Tcl.
 .SH "VARIABLES"
 .PP
-\fBTclsh\fR sets the following Tcl variables:
+\fBTclsh\fR sets the following global Tcl variables in addition to those
+created by the Tcl library itself (such as \fBenv\fR, which maps
+environment variables such as \fBPATH\fR into Tcl):
 .TP 15
 \fBargc\fR
 .
@@ -129,7 +131,7 @@ device), 0 otherwise.
 When \fBtclsh\fR is invoked interactively it normally prompts for each
 command with
 .QW "\fB% \fR" .
-You can change the prompt by setting the
+You can change the prompt by setting the global
 variables \fBtcl_prompt1\fR and \fBtcl_prompt2\fR.  If variable
 \fBtcl_prompt1\fR exists then it must consist of a Tcl script
 to output a prompt;  instead of outputting a prompt \fBtclsh\fR
@@ -142,6 +144,6 @@ incomplete commands.
 .PP
 See \fBTcl_StandardChannels\fR for more explanations.
 .SH "SEE ALSO"
-encoding(n), fconfigure(n), tclvars(n)
+auto_path(n), encoding(n), env(n), fconfigure(n)
 .SH KEYWORDS
 application, argument, interpreter, prompt, script file, shell
@@ -40,7 +40,7 @@ The following produces an error that is identical to that produced by
 \fBthrow\fR {ARITH DIVZERO {divide by zero}} {divide by zero}
 .CE
 .SH "SEE ALSO"
-catch(n), error(n), return(n), tclvars(n), try(n)
+catch(n), error(n), errorCode(n), errorInfo(n), return(n), try(n)
 .SH "KEYWORDS"
 error, exception
 '\" Local Variables:
@@ -259,8 +259,9 @@ static const chr alphaCharTable[] = {
 */

 static const crange controlRangeTable[] = {
-    {0x7f, 0x9f}, {0x600, 0x604}, {0x200b, 0x200f}, {0x202a, 0x202e},
-    {0x2060, 0x2064}, {0x206a, 0x206f}, {0xe000, 0xf8ff}, {0xfff9, 0xfffb}
+    {0x0, 0x1f}, {0x7f, 0x9f}, {0x600, 0x604}, {0x200b, 0x200f},
+    {0x202a, 0x202e}, {0x2060, 0x2064}, {0x206a, 0x206f}, {0xe000, 0xf8ff},
+    {0xfff9, 0xfffb}
 #if TCL_UTF_MAX > 4
    ,{0x1d173, 0x1d17a}, {0xe0020, 0xe007f}, {0xf0000, 0xffffd}, {0x100000, 0x10fffd}
 #endif
@@ -824,7 +824,7 @@ duptraverse(
     * make all normal tests (not reg-33.14) pass.
     */
 #ifndef DUPTRAVERSE_MAX_DEPTH
-#define DUPTRAVERSE_MAX_DEPTH 700
+#define DUPTRAVERSE_MAX_DEPTH 15000
 #endif

    if (depth++ > DUPTRAVERSE_MAX_DEPTH) {
@@ -504,12 +504,7 @@ complicatedFindLoop(
 		    return er;
 		}
 		if ((shorter) ? end == estop : end == begin) {
-		    /*
-		     * No point in trying again.
-		     */
-
-		    *coldp = cold;
-		    return REG_NOMATCH;
+		    break;
 		}

 		/*
@@ -56,10 +56,10 @@ extern "C" {
 #define TCL_MAJOR_VERSION   8
 #define TCL_MINOR_VERSION   6
 #define TCL_RELEASE_LEVEL   TCL_FINAL_RELEASE
-#define TCL_RELEASE_SERIAL  0
+#define TCL_RELEASE_SERIAL  1

 #define TCL_VERSION	    "8.6"
-#define TCL_PATCH_LEVEL	    "8.6.0"
+#define TCL_PATCH_LEVEL	    "8.6.1"

 /*
 *----------------------------------------------------------------------------
@@ -2417,7 +2417,7 @@ const char *		TclTomMathInitializeStubs(Tcl_Interp *interp,
 */

 #define Tcl_Main(argc, argv, proc) Tcl_MainEx(argc, argv, proc, \
-	    (Tcl_FindExecutable(argv[0]), (Tcl_CreateInterp)()))
+	    ((Tcl_CreateInterp)()))
 EXTERN void		Tcl_MainEx(int argc, char **argv,
 			    Tcl_AppInitProc *appInitProc, Tcl_Interp *interp);
 EXTERN const char *	Tcl_PkgInitStubsCheck(Tcl_Interp *interp,
@@ -246,6 +246,8 @@ static void		BBEmitInstInt4(AssemblyEnv* assemEnvPtr, int tblIdx,
 			    int opnd, int count);
 static void		BBEmitInst1or4(AssemblyEnv* assemEnvPtr, int tblIdx,
 			    int param, int count);
+static void		BBEmitInvoke1or4(AssemblyEnv* assemEnvPtr, int tblIdx,
+			    int param, int count);
 static void		BBEmitOpcode(AssemblyEnv* assemEnvPtr, int tblIdx,
 			    int count);
 static int		BuildExceptionRanges(AssemblyEnv* assemEnvPtr);
@@ -679,10 +681,13 @@ BBEmitInstInt4(
 /*
 *-----------------------------------------------------------------------------
 *
- * BBEmitInst1or4 --
+ * BBEmitInst1or4, BBEmitInvoke1or4 --
 *
 *	Emits a 1- or 4-byte operation according to the magnitude of the
- *	operand
+ *	operand. The Invoke variant generates wrapping stack-balance
+ *	management if necessary (which is not normally required in assembled
+ *	code, as loop exception ranges, expansions, breaks and continues can't
+ *	be issued currently).
 *
 *-----------------------------------------------------------------------------
 */
@@ -714,6 +719,29 @@ BBEmitInst1or4(
    TclUpdateAtCmdStart(op, envPtr);
    BBUpdateStackReqs(bbPtr, tblIdx, count);
 }
+
+static void
+BBEmitInvoke1or4(
+    AssemblyEnv* assemEnvPtr,	/* Assembly environment */
+    int tblIdx,			/* Index in TalInstructionTable of op */
+    int param,			/* Variable-length parameter */
+    int count)			/* Arity if variadic */
+{
+    CompileEnv* envPtr = assemEnvPtr->envPtr;
+				/* Compilation environment */
+    BasicBlock* bbPtr = assemEnvPtr->curr_bb;
+				/* Current basic block */
+    int op = TalInstructionTable[tblIdx].tclInstCode;
+
+    if (param <= 0xff) {
+	op >>= 8;
+    } else {
+	op &= 0xff;
+    }
+    TclEmitInvoke(envPtr, op, param);
+    TclUpdateAtCmdStart(op, envPtr);
+    BBUpdateStackReqs(bbPtr, tblIdx, count);
+}

 /*
 *-----------------------------------------------------------------------------
@@ -930,6 +958,10 @@ TclCompileAssembleCmd(
 {
    Tcl_Token *tokenPtr;	/* Token in the input script */

+    int numCommands = envPtr->numCommands;
+    int offset = envPtr->codeNext - envPtr->codeStart;
+    int depth = envPtr->currStackDepth;
+
    /*
     * Make sure that the command has a single arg that is a simple word.
     */
@@ -943,10 +975,23 @@ TclCompileAssembleCmd(
    }

    /*
-     * Compile the code and return any error from the compilation.
+     * Compile the code and convert any error from the compilation into
+     * bytecode reporting the error;
     */

-    return TclAssembleCode(envPtr, tokenPtr[1].start, tokenPtr[1].size, 0);
+    if (TCL_ERROR == TclAssembleCode(envPtr, tokenPtr[1].start,
+	    tokenPtr[1].size, TCL_EVAL_DIRECT)) {
+
+	Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
+		"\n    (\"%.*s\" body, line %d)",
+		parsePtr->tokenPtr->size, parsePtr->tokenPtr->start,
+		Tcl_GetErrorLine(interp)));
+	envPtr->numCommands = numCommands;
+	envPtr->codeNext = envPtr->codeStart + offset;
+	envPtr->currStackDepth = depth;
+	TclCompileSyntaxError(interp, envPtr);
+    }
+    return TCL_OK;
 }

 /*
@@ -985,8 +1030,6 @@ TclAssembleCode(

    const char* instPtr = codePtr;
 				/* Where to start looking for a line of code */
-    int instLen;		/* Length in bytes of the current line of
-				 * code */
    const char* nextPtr;	/* Pointer to the end of the line of code */
    int bytesLeft = codeLen;	/* Number of bytes of source code remaining to
 				 * be parsed */
@@ -1000,10 +1043,6 @@ TclAssembleCode(
 	 */

 	status = Tcl_ParseCommand(interp, instPtr, bytesLeft, 0, parsePtr);
-	instLen = parsePtr->commandSize;
-	if (parsePtr->term == parsePtr->commandStart + instLen - 1) {
-	    --instLen;
-	}

 	/*
 	 * Report errors in the parse.
@@ -1012,7 +1051,7 @@ TclAssembleCode(
 	if (status != TCL_OK) {
 	    if (flags & TCL_EVAL_DIRECT) {
 		Tcl_LogCommandInfo(interp, codePtr, parsePtr->commandStart,
-			instLen);
+			parsePtr->term + 1 - parsePtr->commandStart);
 	    }
 	    FreeAssemblyEnv(assemEnvPtr);
 	    return TCL_ERROR;
@@ -1032,6 +1071,13 @@ TclAssembleCode(
 	 */

 	if (parsePtr->numWords > 0) {
+	    int instLen = parsePtr->commandSize;
+		    /* Length in bytes of the current command */
+
+	    if (parsePtr->term == parsePtr->commandStart + instLen - 1) {
+		--instLen;
+	    }
+
 	    /*
 	     * If tracing, show each line assembled as it happens.
 	     */
@@ -1107,7 +1153,7 @@ NewAssemblyEnv(

    assemEnvPtr->envPtr = envPtr;
    assemEnvPtr->parsePtr = parsePtr;
-    assemEnvPtr->cmdLine = envPtr->line;
+    assemEnvPtr->cmdLine = 1;
    assemEnvPtr->clNext = envPtr->clNext;

    /*
@@ -1432,7 +1478,7 @@ AssembleOneLine(
 	    goto cleanup;
 	}

-	BBEmitInst1or4(assemEnvPtr, tblIdx, opnd, opnd);
+	BBEmitInvoke1or4(assemEnvPtr, tblIdx, opnd, opnd);
 	break;

    case ASSEM_JUMP:
@@ -2599,6 +2645,7 @@ AllocBB(
    bb->minStackDepth = 0;
    bb->maxStackDepth = 0;
    bb->finalStackDepth = 0;
+    bb->catchDepth = 0;
    bb->enclosingCatch = NULL;
    bb->foreignExceptionBase = -1;
    bb->foreignExceptionCount = 0;
@@ -3029,7 +3076,7 @@ ResolveJumpTableTargets(
    auxDataIndex = TclGetInt4AtPtr(envPtr->codeStart + bbPtr->jumpOffset + 1);
    DEBUG_PRINT("bbPtr = %p jumpOffset = %d auxDataIndex = %d\n",
 	    bbPtr, bbPtr->jumpOffset, auxDataIndex);
-    realJumpTablePtr = envPtr->auxDataArrayPtr[auxDataIndex].clientData;
+    realJumpTablePtr = TclFetchAuxData(envPtr, auxDataIndex);
    realJumpHashPtr = &realJumpTablePtr->hashTable;

    /*
@@ -87,10 +87,13 @@ static int		BinaryDecodeHex(ClientData clientData,
 static int		BinaryEncode64(ClientData clientData,
 			    Tcl_Interp *interp,
 			    int objc, Tcl_Obj *const objv[]);
-static int		BinaryDecodeUu(ClientData clientData,
+static int		BinaryDecode64(ClientData clientData,
 			    Tcl_Interp *interp,
 			    int objc, Tcl_Obj *const objv[]);
-static int		BinaryDecode64(ClientData clientData,
+static int		BinaryEncodeUu(ClientData clientData,
+			    Tcl_Interp *interp, int objc,
+			    Tcl_Obj *const objv[]);
+static int		BinaryDecodeUu(ClientData clientData,
 			    Tcl_Interp *interp,
 			    int objc, Tcl_Obj *const objv[]);

@@ -139,9 +142,9 @@ static const EnsembleImplMap binaryMap[] = {
    { NULL, NULL, NULL, NULL, NULL, 0 }
 };
 static const EnsembleImplMap encodeMap[] = {
-    { "hex",      BinaryEncodeHex, TclCompileBasic1ArgCmd, NULL, (ClientData)HexDigits, 0 },
-    { "uuencode", BinaryEncode64,  NULL, NULL, (ClientData)UueDigits, 0 },
-    { "base64",   BinaryEncode64,  NULL, NULL, (ClientData)B64Digits, 0 },
+    { "hex",      BinaryEncodeHex, TclCompileBasic1ArgCmd, NULL, NULL, 0 },
+    { "uuencode", BinaryEncodeUu,  NULL, NULL, NULL, 0 },
+    { "base64",   BinaryEncode64,  NULL, NULL, NULL, 0 },
    { NULL, NULL, NULL, NULL, NULL, 0 }
 };
 static const EnsembleImplMap decodeMap[] = {
@@ -2312,7 +2315,6 @@ BinaryEncodeHex(
    Tcl_Obj *resultObj = NULL;
    unsigned char *data = NULL;
    unsigned char *cursor = NULL;
-    const char *digits = clientData;
    int offset = 0, count = 0;

    if (objc != 2) {
@@ -2324,8 +2326,8 @@ BinaryEncodeHex(
    data = Tcl_GetByteArrayFromObj(objv[1], &count);
    cursor = Tcl_SetByteArrayLength(resultObj, count * 2);
    for (offset = 0; offset < count; ++offset) {
-	*cursor++ = digits[((data[offset] >> 4) & 0x0f)];
-	*cursor++ = digits[(data[offset] & 0x0f)];
+	*cursor++ = HexDigits[((data[offset] >> 4) & 0x0f)];
+	*cursor++ = HexDigits[(data[offset] & 0x0f)];
    }
    Tcl_SetObjResult(interp, resultObj);
    return TCL_OK;
@@ -2386,29 +2388,32 @@ BinaryDecodeHex(
    while (data < dataend) {
 	value = 0;
 	for (i=0 ; i<2 ; i++) {
-	    if (data < dataend) {
-		c = *data++;
-
-		if (!isxdigit((int) c)) {
-		    if (strict || !isspace(c)) {
-			goto badChar;
-		    }
-		    i--;
-		    continue;
-		}
+	    if (data >= dataend) {
 		value <<= 4;
-		c -= '0';
-		if (c > 9) {
-		    c += ('0' - 'A') + 10;
-		}
-		if (c > 16) {
-		    c += ('A' - 'a');
-		}
-		value |= (c & 0xf);
-	    } else {
-		value <<= 4;
-		cut++;
+		break;
 	    }
+
+	    c = *data++;
+	    if (!isxdigit((int) c)) {
+		if (strict || !isspace(c)) {
+		    goto badChar;
+		}
+		i--;
+		continue;
+	    }
+
+	    value <<= 4;
+	    c -= '0';
+	    if (c > 9) {
+		c += ('0' - 'A') + 10;
+	    }
+	    if (c > 16) {
+		c += ('A' - 'a');
+	    }
+	    value |= (c & 0xf);
+	}
+	if (i < 2) {
+	    cut++;
 	}
 	*cursor++ = UCHAR(value);
 	value = 0;
@@ -2436,7 +2441,7 @@ BinaryDecodeHex(
 *	This implements a generic 6 bit binary encoding. Input is broken into
 *	6 bit chunks and a lookup table passed in via clientData is used to
 *	turn these values into output characters. This is used to implement
- *	base64 and uuencode binary encodings.
+ *	base64 binary encodings.
 *
 * Results:
 *	Interp result set to an encoded byte array object
@@ -2472,7 +2477,6 @@ BinaryEncode64(
 {
    Tcl_Obj *resultObj;
    unsigned char *data, *cursor, *limit;
-    const char *digits = clientData;
    int maxlen = 0;
    const char *wrapchar = "\n";
    int wrapcharlen = 1;
@@ -2495,6 +2499,13 @@ BinaryEncode64(
 	    if (Tcl_GetIntFromObj(interp, objv[i+1], &maxlen) != TCL_OK) {
 		return TCL_ERROR;
 	    }
+	    if (maxlen < 0) {
+		Tcl_SetObjResult(interp, Tcl_NewStringObj(
+			"line length out of range", -1));
+		Tcl_SetErrorCode(interp, "TCL", "BINARY", "ENCODE",
+			"LINE_LENGTH", NULL);
+		return TCL_ERROR;
+	    }
 	    break;
 	case OPT_WRAPCHAR:
 	    wrapchar = Tcl_GetStringFromObj(objv[i+1], &wrapcharlen);
@@ -2525,17 +2536,17 @@ BinaryEncode64(
 	    for (i = 0; i < 3 && offset+i < count; ++i) {
 		d[i] = data[offset + i];
 	    }
-	    OUTPUT(digits[d[0] >> 2]);
-	    OUTPUT(digits[((d[0] & 0x03) << 4) | (d[1] >> 4)]);
+	    OUTPUT(B64Digits[d[0] >> 2]);
+	    OUTPUT(B64Digits[((d[0] & 0x03) << 4) | (d[1] >> 4)]);
 	    if (offset+1 < count) {
-		OUTPUT(digits[((d[1] & 0x0f) << 2) | (d[2] >> 6)]);
+		OUTPUT(B64Digits[((d[1] & 0x0f) << 2) | (d[2] >> 6)]);
 	    } else {
-		OUTPUT(digits[64]);
+		OUTPUT(B64Digits[64]);
 	    }
 	    if (offset+2 < count) {
-		OUTPUT(digits[d[2] & 0x3f]);
+		OUTPUT(B64Digits[d[2] & 0x3f]);
 	    } else {
-		OUTPUT(digits[64]);
+		OUTPUT(B64Digits[64]);
 	    }
 	}
    }
@@ -2544,6 +2555,125 @@ BinaryEncode64(
 }
 #undef OUTPUT

+/*
+ *----------------------------------------------------------------------
+ *
+ * BinaryEncodeUu --
+ *
+ *	This implements the uuencode binary encoding. Input is broken into 6
+ *	bit chunks and a lookup table is used to turn these values into output
+ *	characters. This differs from the generic code above in that line
+ *	lengths are also encoded.
+ *
+ * Results:
+ *	Interp result set to an encoded byte array object
+ *
+ * Side effects:
+ *	None
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+BinaryEncodeUu(
+    ClientData clientData,
+    Tcl_Interp *interp,
+    int objc,
+    Tcl_Obj *const objv[])
+{
+    Tcl_Obj *resultObj;
+    unsigned char *data, *start, *cursor;
+    int offset, count, rawLength, n, i, j, bits, index;
+    int lineLength = 61;
+    const unsigned char SingleNewline[] = { (unsigned char) '\n' };
+    const unsigned char *wrapchar = SingleNewline;
+    int wrapcharlen = sizeof(SingleNewline);
+    enum { OPT_MAXLEN, OPT_WRAPCHAR };
+    static const char *const optStrings[] = { "-maxlen", "-wrapchar", NULL };
+
+    if (objc < 2 || objc%2 != 0) {
+	Tcl_WrongNumArgs(interp, 1, objv,
+		"?-maxlen len? ?-wrapchar char? data");
+	return TCL_ERROR;
+    }
+    for (i = 1; i < objc-1; i += 2) {
+	if (Tcl_GetIndexFromObj(interp, objv[i], optStrings, "option",
+		TCL_EXACT, &index) != TCL_OK) {
+	    return TCL_ERROR;
+	}
+	switch (index) {
+	case OPT_MAXLEN:
+	    if (Tcl_GetIntFromObj(interp, objv[i+1], &lineLength) != TCL_OK) {
+		return TCL_ERROR;
+	    }
+	    if (lineLength < 3 || lineLength > 85) {
+		Tcl_SetObjResult(interp, Tcl_NewStringObj(
+			"line length out of range", -1));
+		Tcl_SetErrorCode(interp, "TCL", "BINARY", "ENCODE",
+			"LINE_LENGTH", NULL);
+		return TCL_ERROR;
+	    }
+	    break;
+	case OPT_WRAPCHAR:
+	    wrapchar = Tcl_GetByteArrayFromObj(objv[i+1], &wrapcharlen);
+	    break;
+	}
+    }
+
+    /*
+     * Allocate the buffer. This is a little bit too long, but is "good
+     * enough".
+     */
+
+    resultObj = Tcl_NewObj();
+    offset = 0;
+    data = Tcl_GetByteArrayFromObj(objv[objc-1], &count);
+    rawLength = (lineLength - 1) * 3 / 4;
+    start = cursor = Tcl_SetByteArrayLength(resultObj,
+	    (lineLength + wrapcharlen) *
+	    ((count + (rawLength - 1)) / rawLength));
+    n = bits = 0;
+
+    /*
+     * Encode the data. Each output line first has the length of raw data
+     * encoded by the output line described in it by one encoded byte, then
+     * the encoded data follows (encoding each 6 bits as one character).
+     * Encoded lines are always terminated by a newline.
+     */
+
+    while (offset < count) {
+	int lineLen = count - offset;
+
+	if (lineLen > rawLength) {
+	    lineLen = rawLength;
+	}
+	*cursor++ = UueDigits[lineLen];
+	for (i=0 ; i<lineLen ; i++) {
+	    n <<= 8;
+	    n |= data[offset++];
+	    for (bits += 8; bits > 6 ; bits -= 6) {
+		*cursor++ = UueDigits[(n >> (bits-6)) & 0x3f];
+	    }
+	}
+	if (bits > 0) {
+	    n <<= 8;
+	    *cursor++ = UueDigits[(n >> (bits + 2)) & 0x3f];
+	    bits = 0;
+	}
+	for (j=0 ; j<wrapcharlen ; ++j) {
+	    *cursor++ = wrapchar[j];
+	}
+    }
+
+    /*
+     * Fix the length of the output bytearray.
+     */
+
+    Tcl_SetByteArrayLength(resultObj, cursor-start);
+    Tcl_SetObjResult(interp, resultObj);
+    return TCL_OK;
+}
+
 /*
 *----------------------------------------------------------------------
 *
@@ -2570,8 +2700,8 @@ BinaryDecodeUu(
    Tcl_Obj *resultObj = NULL;
    unsigned char *data, *datastart, *dataend;
    unsigned char *begin, *cursor;
-    int i, index, size, count = 0, cut = 0, strict = 0;
-    char c;
+    int i, index, size, count = 0, strict = 0, lineLen;
+    unsigned char c;
    enum {OPT_STRICT };
    static const char *const optStrings[] = { "-strict", NULL };

@@ -2597,44 +2727,112 @@ BinaryDecodeUu(
    dataend = data + count;
    size = ((count + 3) & ~3) * 3 / 4;
    begin = cursor = Tcl_SetByteArrayLength(resultObj, size);
+    lineLen = -1;
+
+    /*
+     * The decoding loop. First, we get the length of line (strictly, the
+     * number of data bytes we expect to generate from the line) we're
+     * processing this time round if it is not already known (i.e., when the
+     * lineLen variable is set to the magic value, -1).
+     */
+
    while (data < dataend) {
 	char d[4] = {0, 0, 0, 0};

+	if (lineLen < 0) {
+	    c = *data++;
+	    if (c < 32 || c > 96) {
+		if (strict || !isspace(c)) {
+		    goto badUu;
+		}
+		i--;
+		continue;
+	    }
+	    lineLen = (c - 32) & 0x3f;
+	}
+
+	/*
+	 * Now we read a four-character grouping.
+	 */
+
 	for (i=0 ; i<4 ; i++) {
 	    if (data < dataend) {
 		d[i] = c = *data++;
-		if (c < 33 || c > 96) {
-		    if (strict || !isspace(UCHAR(c))) {
-			goto badUu;
+		if (c < 32 || c > 96) {
+		    if (strict) {
+			if (!isspace(c)) {
+			    goto badUu;
+			} else if (c == '\n') {
+			    goto shortUu;
+			}
 		    }
 		    i--;
 		    continue;
 		}
-	    } else {
-		cut++;
 	    }
 	}
-	if (cut > 3) {
-	    cut = 3;
+
+	/*
+	 * Translate that grouping into (up to) three binary bytes output.
+	 */
+
+	if (lineLen > 0) {
+	    *cursor++ = (((d[0] - 0x20) & 0x3f) << 2)
+		    | (((d[1] - 0x20) & 0x3f) >> 4);
+	    if (--lineLen > 0) {
+		*cursor++ = (((d[1] - 0x20) & 0x3f) << 4)
+			| (((d[2] - 0x20) & 0x3f) >> 2);
+		if (--lineLen > 0) {
+		    *cursor++ = (((d[2] - 0x20) & 0x3f) << 6)
+			    | (((d[3] - 0x20) & 0x3f));
+		    lineLen--;
+		}
+	    }
+	}
+
+	/*
+	 * If we've reached the end of the line, skip until we process a
+	 * newline.
+	 */
+
+	if (lineLen == 0 && data < dataend) {
+	    lineLen = -1;
+	    do {
+		c = *data++;
+		if (c == '\n') {
+		    break;
+		} else if (c >= 32 && c <= 96) {
+		    data--;
+		    break;
+		} else if (strict || !isspace(c)) {
+		    goto badUu;
+		}
+	    } while (data < dataend);
 	}
-	*cursor++ = (((d[0] - 0x20) & 0x3f) << 2)
-		| (((d[1] - 0x20) & 0x3f) >> 4);
-	*cursor++ = (((d[1] - 0x20) & 0x3f) << 4)
-		| (((d[2] - 0x20) & 0x3f) >> 2);
-	*cursor++ = (((d[2] - 0x20) & 0x3f) << 6)
-		| (((d[3] - 0x20) & 0x3f));
    }
-    if (cut > size) {
-	cut = size;
+
+    /*
+     * Sanity check, clean up and finish.
+     */
+
+    if (lineLen > 0 && strict) {
+	goto shortUu;
    }
-    Tcl_SetByteArrayLength(resultObj, cursor - begin - cut);
+    Tcl_SetByteArrayLength(resultObj, cursor - begin);
    Tcl_SetObjResult(interp, resultObj);
    return TCL_OK;

+  shortUu:
+    Tcl_SetObjResult(interp, Tcl_ObjPrintf("short uuencode data"));
+    Tcl_SetErrorCode(interp, "TCL", "BINARY", "DECODE", "SHORT", NULL);
+    TclDecrRefCount(resultObj);
+    return TCL_ERROR;
+
  badUu:
    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
 	    "invalid uuencode character \"%c\" at position %d",
 	    c, (int) (data - datastart - 1)));
+    Tcl_SetErrorCode(interp, "TCL", "BINARY", "DECODE", "INVALID", NULL);
    TclDecrRefCount(resultObj);
    return TCL_ERROR;
 }
@@ -194,8 +194,7 @@ Tcl_CaseObjCmd(
    for (i = 0;  i < caseObjc;  i += 2) {
 	int patObjc, j;
 	const char **patObjv;
-	const char *pat;
-	unsigned char *p;
+	const char *pat, *p;

 	if (i == caseObjc-1) {
 	    Tcl_ResetResult(interp);
@@ -210,8 +209,8 @@ Tcl_CaseObjCmd(
 	 */

 	pat = TclGetString(caseObjv[i]);
-	for (p = (unsigned char *) pat; *p != '\0'; p++) {
-	    if (isspace(*p) || (*p == '\\')) {	/* INTL: ISO space, UCHAR */
+	for (p = pat; *p != '\0'; p++) {
+	    if (TclIsSpaceProc(*p) || (*p == '\\')) {
 		break;
 	    }
 	}
@@ -1302,28 +1302,12 @@ TclInfoFrame(
 	 */

 	ADD_PAIR("type", Tcl_NewStringObj(typeString[framePtr->type], -1));
-	ADD_PAIR("line", Tcl_NewIntObj(framePtr->line[0]));
-	ADD_PAIR("cmd", Tcl_NewStringObj(framePtr->cmd.str.cmd,
-		framePtr->cmd.str.len));
-	break;
-
-    case TCL_LOCATION_EVAL_LIST:
-	/*
-	 * List optimized evaluation. Type, line, cmd, the latter through
-	 * listPtr, possibly a frame.
-	 */
-
-	ADD_PAIR("type", Tcl_NewStringObj(typeString[framePtr->type], -1));
-	ADD_PAIR("line", Tcl_NewIntObj(1));
-
-	/*
-	 * We put a duplicate of the command list obj into the result to
-	 * ensure that the 'pure List'-property of the command itself is not
-	 * destroyed. Otherwise the query here would disable the list
-	 * optimization path in Tcl_EvalObjEx.
-	 */
-
-	ADD_PAIR("cmd", Tcl_DuplicateObj(framePtr->cmd.listPtr));
+	if (framePtr->line) {
+	    ADD_PAIR("line", Tcl_NewIntObj(framePtr->line[0]));
+	} else {
+	    ADD_PAIR("line", Tcl_NewIntObj(1));
+	}
+	ADD_PAIR("cmd", TclGetSourceFromFrame(framePtr, 0, NULL));
 	break;

    case TCL_LOCATION_PREBC:
@@ -1371,8 +1355,7 @@ TclInfoFrame(
 	    Tcl_DecrRefCount(fPtr->data.eval.path);
 	}

-	ADD_PAIR("cmd",
-		Tcl_NewStringObj(fPtr->cmd.str.cmd, fPtr->cmd.str.len));
+	ADD_PAIR("cmd", TclGetSourceFromFrame(fPtr, 0, NULL));
 	TclStackFree(interp, fPtr);
 	break;
    }
@@ -1391,8 +1374,7 @@ TclInfoFrame(
 	 * the result list object.
 	 */

-	ADD_PAIR("cmd", Tcl_NewStringObj(framePtr->cmd.str.cmd,
-		framePtr->cmd.str.len));
+	ADD_PAIR("cmd", TclGetSourceFromFrame(framePtr, 0, NULL));
 	break;

    case TCL_LOCATION_PROC:
@@ -87,6 +87,7 @@ TclCompileAppendCmd(
    int isScalar, localIndex, numWords, i;
    DefineLineInformation;	/* TIP #280 */

+    /* TODO: Consider support for compiling expanded args. */
    numWords = parsePtr->numWords;
    if (numWords == 1) {
 	return TCL_ERROR;
@@ -268,7 +269,7 @@ TclCompileArraySetCmd(
    if (isDataValid && !isDataEven) {
 	PushStringLiteral(envPtr, "list must have an even number of elements");
 	PushStringLiteral(envPtr, "-errorCode {TCL ARGUMENT FORMAT}");
-	TclEmitInstInt4(INST_RETURN_IMM, 1,			envPtr);
+	TclEmitInstInt4(INST_RETURN_IMM, TCL_ERROR,		envPtr);
 	TclEmitInt4(		0,				envPtr);
 	goto done;
    }
@@ -353,7 +354,7 @@ TclCompileArraySetCmd(
 	TclEmitInstInt1(INST_JUMP_FALSE1, 0,			envPtr);
 	PushStringLiteral(envPtr, "list must have an even number of elements");
 	PushStringLiteral(envPtr, "-errorCode {TCL ARGUMENT FORMAT}");
-	TclEmitInstInt4(INST_RETURN_IMM, 1,			envPtr);
+	TclEmitInstInt4(INST_RETURN_IMM, TCL_ERROR,		envPtr);
 	TclEmitInt4(		0,				envPtr);
 	TclAdjustStackDepth(-1, envPtr);
 	fwd = CurrentOffset(envPtr) - offsetFwd;
@@ -544,8 +545,6 @@ TclCompileCatchCmd(
    JumpFixup jumpFixup;
    Tcl_Token *cmdTokenPtr, *resultNameTokenPtr, *optsNameTokenPtr;
    int resultIndex, optsIndex, range;
-    int initStackDepth = envPtr->currStackDepth;
-    int savedStackDepth;
    DefineLineInformation;	/* TIP #280 */

    /*
@@ -611,19 +610,17 @@ TclCompileCatchCmd(
     * begin by undeflowing the stack below the mark set by BEGIN_CATCH4.
     */

-    SetLineInformation(1);
    if (cmdTokenPtr->type == TCL_TOKEN_SIMPLE_WORD) {
-	savedStackDepth = envPtr->currStackDepth;
 	TclEmitInstInt4(	INST_BEGIN_CATCH4, range,	envPtr);
 	ExceptionRangeStarts(envPtr, range);
-	CompileBody(envPtr, cmdTokenPtr, interp);
+	BODY(cmdTokenPtr, 1);
    } else {
+	SetLineInformation(1);
 	CompileTokens(envPtr, cmdTokenPtr, interp);
-	savedStackDepth = envPtr->currStackDepth;
 	TclEmitInstInt4(	INST_BEGIN_CATCH4, range,	envPtr);
 	ExceptionRangeStarts(envPtr, range);
 	TclEmitOpcode(		INST_DUP,			envPtr);
-	TclEmitOpcode(		INST_EVAL_STK,			envPtr);
+	TclEmitInvoke(envPtr,	INST_EVAL_STK);
    }
    /* Stack at this point:
     *    nonsimple:  script <mark> result
@@ -641,7 +638,7 @@ TclCompileCatchCmd(
 	TclEmitOpcode(		INST_POP,			envPtr);
 	PushStringLiteral(envPtr, "0");
 	TclEmitInstInt1(	INST_JUMP1, 3,			envPtr);
-	envPtr->currStackDepth = savedStackDepth;
+	TclAdjustStackDepth(-1, envPtr);
 	ExceptionRangeTarget(envPtr, range, catchOffset);
 	TclEmitOpcode(		INST_PUSH_RETURN_CODE,		envPtr);
 	ExceptionRangeEnds(envPtr, range);
@@ -670,7 +667,7 @@ TclCompileCatchCmd(
     * return code.
     */

-    envPtr->currStackDepth = savedStackDepth;
+    TclAdjustStackDepth(-2, envPtr);
    ExceptionRangeTarget(envPtr, range, catchOffset);
    /* Stack at this point:  ?script? */
    TclEmitOpcode(		INST_PUSH_RESULT,		envPtr);
@@ -745,15 +742,6 @@ TclCompileCatchCmd(
 	TclEmitOpcode(		INST_POP,			envPtr);
    }

-    /* 
-     * Result of all this, on either branch, should have been to leave one
-     * operand -- the return code -- on the stack.
-     */
-
-    if (envPtr->currStackDepth != initStackDepth + 1) {
-	Tcl_Panic("in TclCompileCatchCmd, currStackDepth = %d should be %d",
-		  envPtr->currStackDepth, initStackDepth+1);
-    }
    return TCL_OK;
 }

@@ -851,7 +839,7 @@ TclCompileDictSetCmd(
    CompileEnv *envPtr)		/* Holds resulting instructions. */
 {
    Tcl_Token *tokenPtr;
-    int numWords, i, dictVarIndex;
+    int i, dictVarIndex;
    DefineLineInformation;	/* TIP #280 */
    Tcl_Token *varTokenPtr;

@@ -880,8 +868,7 @@ TclCompileDictSetCmd(
     */

    tokenPtr = TokenAfter(varTokenPtr);
-    numWords = parsePtr->numWords-1;
-    for (i=1 ; i<numWords ; i++) {
+    for (i=2 ; i< parsePtr->numWords ; i++) {
 	CompileWord(envPtr, tokenPtr, interp, i);
 	tokenPtr = TokenAfter(tokenPtr);
    }
@@ -890,7 +877,7 @@ TclCompileDictSetCmd(
     * Now emit the instruction to do the dict manipulation.
     */

-    TclEmitInstInt4( INST_DICT_SET, numWords-2,		envPtr);
+    TclEmitInstInt4( INST_DICT_SET, parsePtr->numWords-3,	envPtr);
    TclEmitInt4(     dictVarIndex,			envPtr);
    TclAdjustStackDepth(-1, envPtr);
    return TCL_OK;
@@ -962,7 +949,7 @@ TclCompileDictIncrCmd(
     * Emit the key and the code to actually do the increment.
     */

-    CompileWord(envPtr, keyTokenPtr, interp, 3);
+    CompileWord(envPtr, keyTokenPtr, interp, 2);
    TclEmitInstInt4( INST_DICT_INCR_IMM, incrAmount,	envPtr);
    TclEmitInt4(     dictVarIndex,			envPtr);
    return TCL_OK;
@@ -978,7 +965,7 @@ TclCompileDictGetCmd(
    CompileEnv *envPtr)		/* Holds resulting instructions. */
 {
    Tcl_Token *tokenPtr;
-    int numWords, i;
+    int i;
    DefineLineInformation;	/* TIP #280 */

    /*
@@ -986,21 +973,21 @@ TclCompileDictGetCmd(
     * case is legal, but too special and magic for us to deal with here).
     */

+    /* TODO: Consider support for compiling expanded args. */
    if (parsePtr->numWords < 3) {
 	return TCL_ERROR;
    }
    tokenPtr = TokenAfter(parsePtr->tokenPtr);
-    numWords = parsePtr->numWords-1;

    /*
     * Only compile this because we need INST_DICT_GET anyway.
     */

-    for (i=0 ; i<numWords ; i++) {
+    for (i=1 ; i<parsePtr->numWords ; i++) {
 	CompileWord(envPtr, tokenPtr, interp, i);
 	tokenPtr = TokenAfter(tokenPtr);
    }
-    TclEmitInstInt4(INST_DICT_GET, numWords-1, envPtr);
+    TclEmitInstInt4(INST_DICT_GET, parsePtr->numWords-2, envPtr);
    TclAdjustStackDepth(-1, envPtr);
    return TCL_OK;
 }
@@ -1015,7 +1002,7 @@ TclCompileDictExistsCmd(
    CompileEnv *envPtr)		/* Holds resulting instructions. */
 {
    Tcl_Token *tokenPtr;
-    int numWords, i;
+    int i;
    DefineLineInformation;	/* TIP #280 */

    /*
@@ -1023,21 +1010,21 @@ TclCompileDictExistsCmd(
     * case is legal, but too special and magic for us to deal with here).
     */

+    /* TODO: Consider support for compiling expanded args. */
    if (parsePtr->numWords < 3) {
 	return TCL_ERROR;
    }
    tokenPtr = TokenAfter(parsePtr->tokenPtr);
-    numWords = parsePtr->numWords-1;

    /*
     * Now we do the code generation.
     */

-    for (i=0 ; i<numWords ; i++) {
+    for (i=1 ; i<parsePtr->numWords ; i++) {
 	CompileWord(envPtr, tokenPtr, interp, i);
 	tokenPtr = TokenAfter(tokenPtr);
    }
-    TclEmitInstInt4(INST_DICT_EXISTS, numWords-1, envPtr);
+    TclEmitInstInt4(INST_DICT_EXISTS, parsePtr->numWords-2, envPtr);
    TclAdjustStackDepth(-1, envPtr);
    return TCL_OK;
 }
@@ -1060,6 +1047,7 @@ TclCompileDictUnsetCmd(
     * compile to bytecode.
     */

+    /* TODO: Consider support for compiling expanded args. */
    if (parsePtr->numWords < 3) {
 	return TCL_ERROR;
    }
@@ -1205,6 +1193,7 @@ TclCompileDictMergeCmd(
     * argument, the only thing to do is to verify the dict-ness.
     */

+    /* TODO: Consider support for compiling expanded args. (less likely) */
    if (parsePtr->numWords < 2) {
 	PushStringLiteral(envPtr, "");
 	return TCL_OK;
@@ -1286,6 +1275,7 @@ TclCompileDictMergeCmd(
     * subsequent) dicts. This is strictly not necessary, but it is nice.
     */

+    TclAdjustStackDepth(-1, envPtr);
    ExceptionRangeTarget(envPtr, outLoop, catchOffset);
    TclEmitOpcode(		INST_PUSH_RETURN_OPTIONS,	envPtr);
    TclEmitOpcode(		INST_PUSH_RESULT,		envPtr);
@@ -1295,7 +1285,6 @@ TclCompileDictMergeCmd(
    TclEmitInstInt1(		INST_UNSET_SCALAR, 0,		envPtr);
    TclEmitInt4(			infoIndex,		envPtr);
    TclEmitOpcode(		INST_RETURN_STK,		envPtr);
-    TclAdjustStackDepth(-1, envPtr);

    return TCL_OK;
 }
@@ -1345,9 +1334,6 @@ CompileDictEachCmd(
    int numVars, endTargetOffset;
    int collectVar = -1;	/* Index of temp var holding the result
 				 * dict. */
-    int savedStackDepth = envPtr->currStackDepth;
-				/* Needed because jumps confuse the stack
-				 * space calculator. */
    const char **argv;
    Tcl_DString buffer;

@@ -1437,7 +1423,7 @@ CompileDictEachCmd(
     * this point.
     */

-    CompileWord(envPtr, dictTokenPtr, interp, 3);
+    CompileWord(envPtr, dictTokenPtr, interp, 2);

    /*
     * Now we catch errors from here on so that we can finalize the search
@@ -1473,8 +1459,7 @@ CompileDictEachCmd(
     * Compile the loop body itself. It should be stack-neutral.
     */

-    SetLineInformation(3);
-    CompileBody(envPtr, bodyTokenPtr, interp);
+    BODY(bodyTokenPtr, 3);
    if (collect == TCL_EACH_COLLECT) {
 	Emit14Inst(	INST_LOAD_SCALAR, keyVarIndex,		envPtr);
 	TclEmitInstInt4(INST_OVER, 1,				envPtr);
@@ -1510,6 +1495,7 @@ CompileDictEachCmd(
     * and rethrows the error.
     */

+    TclAdjustStackDepth(-1, envPtr);
    ExceptionRangeTarget(envPtr, catchRange, catchOffset);
    TclEmitOpcode(	INST_PUSH_RETURN_OPTIONS,		envPtr);
    TclEmitOpcode(	INST_PUSH_RESULT,			envPtr);
@@ -1528,7 +1514,6 @@ CompileDictEachCmd(
     * easy!) Note that we skip the END_CATCH. [Bug 1382528]
     */

-    envPtr->currStackDepth = savedStackDepth + 2;
    jumpDisplacement = CurrentOffset(envPtr) - emptyTargetOffset;
    TclUpdateInstInt4AtPc(INST_JUMP_TRUE4, jumpDisplacement,
 	    envPtr->codeStart + emptyTargetOffset);
@@ -1647,7 +1632,7 @@ TclCompileDictUpdateCmd(
    infoIndex = TclCreateAuxData(duiPtr, &tclDictUpdateInfoType, envPtr);

    for (i=0 ; i<numVars ; i++) {
-	CompileWord(envPtr, keyTokenPtrs[i], interp, i);
+	CompileWord(envPtr, keyTokenPtrs[i], interp, 2*i+2);
    }
    TclEmitInstInt4(	INST_LIST, numVars,			envPtr);
    TclEmitInstInt4(	INST_DICT_UPDATE_START, dictIndex,	envPtr);
@@ -1657,8 +1642,7 @@ TclCompileDictUpdateCmd(
    TclEmitInstInt4(	INST_BEGIN_CATCH4, range,		envPtr);

    ExceptionRangeStarts(envPtr, range);
-    SetLineInformation(parsePtr->numWords - 1);
-    CompileBody(envPtr, bodyTokenPtr, interp);
+    BODY(bodyTokenPtr, parsePtr->numWords - 1);
    ExceptionRangeEnds(envPtr, range);

    /*
@@ -1691,7 +1675,7 @@ TclCompileDictUpdateCmd(

    TclEmitInstInt4(	INST_DICT_UPDATE_END, dictIndex,	envPtr);
    TclEmitInt4(		infoIndex,			envPtr);
-    TclEmitOpcode(	INST_RETURN_STK,			envPtr);
+    TclEmitInvoke(envPtr,INST_RETURN_STK);

    if (TclFixupForwardJumpToHere(envPtr, &jumpFixup, 127)) {
 	Tcl_Panic("TclCompileDictCmd(update): bad jump distance %d",
@@ -1730,6 +1714,7 @@ TclCompileDictAppendCmd(
     * speed quite so much. ;-)
     */

+    /* TODO: Consider support for compiling expanded args. */
    if (parsePtr->numWords<4 || parsePtr->numWords>100) {
 	return TCL_ERROR;
    }
@@ -1782,6 +1767,8 @@ TclCompileDictLappendCmd(
     * There must be three arguments after the command.
     */

+    /* TODO: Consider support for compiling expanded args. */
+    /* Probably not.  Why is INST_DICT_LAPPEND limited to one value? */
    if (parsePtr->numWords != 4) {
 	return TCL_ERROR;
    }
@@ -1802,8 +1789,8 @@ TclCompileDictLappendCmd(
     * Issue the implementation.
     */

-    CompileWord(envPtr, keyTokenPtr, interp, 3);
-    CompileWord(envPtr, valueTokenPtr, interp, 4);
+    CompileWord(envPtr, keyTokenPtr, interp, 2);
+    CompileWord(envPtr, valueTokenPtr, interp, 3);
    TclEmitInstInt4(	INST_DICT_LAPPEND, dictVarIndex,	envPtr);
    return TCL_OK;
 }
@@ -1828,6 +1815,7 @@ TclCompileDictWithCmd(
     * There must be at least one argument after the command.
     */

+    /* TODO: Consider support for compiling expanded args. */
    if (parsePtr->numWords < 3) {
 	return TCL_ERROR;
    }
@@ -1887,7 +1875,7 @@ TclCompileDictWithCmd(

 		tokenPtr = TokenAfter(varTokenPtr);
 		for (i=2 ; i<parsePtr->numWords-1 ; i++) {
-		    CompileWord(envPtr, tokenPtr, interp, i-1);
+		    CompileWord(envPtr, tokenPtr, interp, i);
 		    tokenPtr = TokenAfter(tokenPtr);
 		}
 		TclEmitInstInt4(INST_LIST, parsePtr->numWords-3,envPtr);
@@ -1914,7 +1902,7 @@ TclCompileDictWithCmd(

 		tokenPtr = varTokenPtr;
 		for (i=1 ; i<parsePtr->numWords-1 ; i++) {
-		    CompileWord(envPtr, tokenPtr, interp, i-1);
+		    CompileWord(envPtr, tokenPtr, interp, i);
 		    tokenPtr = TokenAfter(tokenPtr);
 		}
 		TclEmitInstInt4(INST_LIST, parsePtr->numWords-3,envPtr);
@@ -1928,7 +1916,7 @@ TclCompileDictWithCmd(
 		 * Case: Direct dict in non-simple var with empty body.
 		 */

-		CompileWord(envPtr, varTokenPtr, interp, 0);
+		CompileWord(envPtr, varTokenPtr, interp, 1);
 		TclEmitOpcode(	INST_DUP,			envPtr);
 		TclEmitOpcode(	INST_LOAD_STK,			envPtr);
 		PushStringLiteral(envPtr, "");
@@ -1963,13 +1951,13 @@ TclCompileDictWithCmd(
     */

    if (dictVar == -1) {
-	CompileWord(envPtr, varTokenPtr, interp, 0);
+	CompileWord(envPtr, varTokenPtr, interp, 1);
 	Emit14Inst(		INST_STORE_SCALAR, varNameTmp,	envPtr);
    }
    tokenPtr = TokenAfter(varTokenPtr);
    if (gotPath) {
 	for (i=2 ; i<parsePtr->numWords-1 ; i++) {
-	    CompileWord(envPtr, tokenPtr, interp, i-1);
+	    CompileWord(envPtr, tokenPtr, interp, i);
 	    tokenPtr = TokenAfter(tokenPtr);
 	}
 	TclEmitInstInt4(	INST_LIST, parsePtr->numWords-3,envPtr);
@@ -1998,8 +1986,7 @@ TclCompileDictWithCmd(
    TclEmitInstInt4(		INST_BEGIN_CATCH4, range,	envPtr);

    ExceptionRangeStarts(envPtr, range);
-    SetLineInformation(parsePtr->numWords-1);
-    CompileBody(envPtr, tokenPtr, interp);
+    BODY(tokenPtr, parsePtr->numWords - 1);
    ExceptionRangeEnds(envPtr, range);

    /*
@@ -2046,7 +2033,7 @@ TclCompileDictWithCmd(
    } else {
 	TclEmitInstInt4(	INST_DICT_RECOMBINE_IMM, dictVar, envPtr);
    }
-    TclEmitOpcode(		INST_RETURN_STK,		envPtr);
+    TclEmitInvoke(envPtr,	INST_RETURN_STK);

    /*
     * Prepare for the start of the next command.
@@ -2148,19 +2135,48 @@ TclCompileErrorCmd(
 {
    /*
     * General syntax: [error message ?errorInfo? ?errorCode?]
-     * However, we only deal with the case where there is just a message.
     */
-    Tcl_Token *messageTokenPtr;
+
+    Tcl_Token *tokenPtr;
    DefineLineInformation;	/* TIP #280 */

-    if (parsePtr->numWords != 2) {
+    if (parsePtr->numWords < 2 || parsePtr->numWords > 4) {
 	return TCL_ERROR;
    }
-    messageTokenPtr = TokenAfter(parsePtr->tokenPtr);

-    PushStringLiteral(envPtr, "-code error -level 0");
-    CompileWord(envPtr, messageTokenPtr, interp, 1);
-    TclEmitOpcode(INST_RETURN_STK, envPtr);
+    /*
+     * Handle the message.
+     */
+
+    tokenPtr = TokenAfter(parsePtr->tokenPtr);
+    CompileWord(envPtr, tokenPtr, interp, 1);
+
+    /*
+     * Construct the options. Note that -code and -level are not here.
+     */
+
+    if (parsePtr->numWords == 2) {
+	PushStringLiteral(envPtr, "");
+    } else {
+	PushStringLiteral(envPtr, "-errorinfo");
+	tokenPtr = TokenAfter(tokenPtr);
+	CompileWord(envPtr, tokenPtr, interp, 2);
+	if (parsePtr->numWords == 3) {
+	    TclEmitInstInt4(	INST_LIST, 2,			envPtr);
+	} else {
+	    PushStringLiteral(envPtr, "-errorcode");
+	    tokenPtr = TokenAfter(tokenPtr);
+	    CompileWord(envPtr, tokenPtr, interp, 3);
+	    TclEmitInstInt4(	INST_LIST, 4,			envPtr);
+	}
+    }
+
+    /*
+     * Issue the error via 'returnImm error 0'.
+     */
+
+    TclEmitInstInt4(		INST_RETURN_IMM, TCL_ERROR,	envPtr);
+    TclEmitInt4(			0,			envPtr);
    return TCL_OK;
 }

@@ -2238,9 +2254,8 @@ TclCompileForCmd(
 {
    Tcl_Token *startTokenPtr, *testTokenPtr, *nextTokenPtr, *bodyTokenPtr;
    JumpFixup jumpEvalCondFixup;
-    int testCodeOffset, bodyCodeOffset, nextCodeOffset, jumpDist;
+    int bodyCodeOffset, nextCodeOffset, jumpDist;
    int bodyRange, nextRange;
-    int savedStackDepth = envPtr->currStackDepth;
    DefineLineInformation;	/* TIP #280 */

    if (parsePtr->numWords != 5) {
@@ -2275,8 +2290,7 @@ TclCompileForCmd(
     * Inline compile the initial command.
     */

-    SetLineInformation(1);
-    CompileBody(envPtr, startTokenPtr, interp);
+    BODY(startTokenPtr, 1);
    TclEmitOpcode(INST_POP, envPtr);

    /*
@@ -2299,10 +2313,8 @@ TclCompileForCmd(

    bodyRange = TclCreateExceptRange(LOOP_EXCEPTION_RANGE, envPtr);
    bodyCodeOffset = ExceptionRangeStarts(envPtr, bodyRange);
-    SetLineInformation(4);
-    CompileBody(envPtr, bodyTokenPtr, interp);
+    BODY(bodyTokenPtr, 4);
    ExceptionRangeEnds(envPtr, bodyRange);
-    envPtr->currStackDepth = savedStackDepth + 1;
    TclEmitOpcode(INST_POP, envPtr);

    /*
@@ -2313,33 +2325,23 @@ TclCompileForCmd(

    nextRange = TclCreateExceptRange(LOOP_EXCEPTION_RANGE, envPtr);
    envPtr->exceptAuxArrayPtr[nextRange].supportsContinue = 0;
-    envPtr->currStackDepth = savedStackDepth;
    nextCodeOffset = ExceptionRangeStarts(envPtr, nextRange);
-    SetLineInformation(3);
-    CompileBody(envPtr, nextTokenPtr, interp);
+    BODY(nextTokenPtr, 3);
    ExceptionRangeEnds(envPtr, nextRange);
-    envPtr->currStackDepth = savedStackDepth + 1;
    TclEmitOpcode(INST_POP, envPtr);
-    envPtr->currStackDepth = savedStackDepth;

    /*
     * Compile the test expression then emit the conditional jump that
     * terminates the for.
     */

-    testCodeOffset = CurrentOffset(envPtr);
-
-    jumpDist = testCodeOffset - jumpEvalCondFixup.codeOffset;
-    if (TclFixupForwardJump(envPtr, &jumpEvalCondFixup, jumpDist, 127)) {
+    if (TclFixupForwardJumpToHere(envPtr, &jumpEvalCondFixup, 127)) {
 	bodyCodeOffset += 3;
 	nextCodeOffset += 3;
-	testCodeOffset += 3;
    }

    SetLineInformation(2);
-    envPtr->currStackDepth = savedStackDepth;
    TclCompileExprWords(interp, testTokenPtr, 1, envPtr);
-    envPtr->currStackDepth = savedStackDepth + 1;

    jumpDist = CurrentOffset(envPtr) - bodyCodeOffset;
    if (jumpDist > 127) {
@@ -2367,7 +2369,6 @@ TclCompileForCmd(
     * The for command's result is an empty string.
     */

-    envPtr->currStackDepth = savedStackDepth;
    PushStringLiteral(envPtr, "");

    return TCL_OK;
@@ -2478,9 +2479,8 @@ CompileEachloopCmd(
    Tcl_Token *tokenPtr, *bodyTokenPtr;
    unsigned char *jumpPc;
    JumpFixup jumpFalseFixup;
-    int jumpBackDist, jumpBackOffset, infoIndex, range, bodyIndex;
+    int jumpBackDist, jumpBackOffset, infoIndex, range;
    int numWords, numLists, numVars, loopIndex, tempVar, i, j, code;
-    int savedStackDepth = envPtr->currStackDepth;
    DefineLineInformation;	/* TIP #280 */

    /*
@@ -2519,8 +2519,6 @@ CompileEachloopCmd(
 	return TCL_ERROR;
    }

-    bodyIndex = i-1;
-
    /*
     * Allocate storage for the varcList and varvList arrays if necessary.
     */
@@ -2559,7 +2557,7 @@ CompileEachloopCmd(

 	Tcl_DStringInit(&varList);
 	TclDStringAppendToken(&varList, &tokenPtr[1]);
-	code = Tcl_SplitList(interp, Tcl_DStringValue(&varList),
+	code = Tcl_SplitList(NULL, Tcl_DStringValue(&varList),
 		&varcList[loopIndex], &varvList[loopIndex]);
 	Tcl_DStringFree(&varList);
 	if (code != TCL_OK) {
@@ -2661,8 +2659,7 @@ CompileEachloopCmd(
 	    i < numWords-1;
 	    i++, tokenPtr = TokenAfter(tokenPtr)) {
 	if ((i%2 == 0) && (i > 0)) {
-	    SetLineInformation(i);
-	    CompileTokens(envPtr, tokenPtr, interp);
+	    CompileWord(envPtr, tokenPtr, interp, i);
 	    tempVar = (firstValueTemp + loopIndex);
 	    Emit14Inst(		INST_STORE_SCALAR, tempVar,	envPtr);
 	    TclEmitOpcode(	INST_POP,			envPtr);
@@ -2699,11 +2696,9 @@ CompileEachloopCmd(
     * Inline compile the loop body.
     */

-    SetLineInformation(bodyIndex);
    ExceptionRangeStarts(envPtr, range);
-    CompileBody(envPtr, bodyTokenPtr, interp);
+    BODY(bodyTokenPtr, numWords - 1);
    ExceptionRangeEnds(envPtr, range);
-    envPtr->currStackDepth = savedStackDepth + 1;

    if (collect == TCL_EACH_COLLECT) {
 	Emit14Inst(		INST_LAPPEND_SCALAR, collectVar,envPtr);
@@ -2763,7 +2758,6 @@ CompileEachloopCmd(
     * list of results from evaluating the loop body.
     */

-    envPtr->currStackDepth = savedStackDepth;
    if (collect == TCL_EACH_COLLECT) {
 	Emit14Inst(		INST_LOAD_SCALAR, collectVar,	envPtr);
 	TclEmitInstInt1(INST_UNSET_SCALAR, 0,			envPtr);
@@ -2771,7 +2765,6 @@ CompileEachloopCmd(
    } else {
 	PushStringLiteral(envPtr, "");
    }
-    envPtr->currStackDepth = savedStackDepth + 1;

  done:
    for (loopIndex = 0;  loopIndex < numLists;  loopIndex++) {
@@ -3006,7 +2999,8 @@ TclCompileFormatCmd(
    ckfree(objv);
    Tcl_DecrRefCount(formatObj);
    if (tmpObj == NULL) {
-	return TCL_ERROR;
+	TclCompileSyntaxError(interp, envPtr);
+	return TCL_OK;
    }

    /*
@@ -3184,10 +3178,7 @@ TclPushVarName(
    CompileEnv *envPtr,		/* Holds resulting instructions. */
    int flags,			/* TCL_NO_LARGE_INDEX | TCL_NO_ELEMENT. */
    int *localIndexPtr,		/* Must not be NULL. */
-    int *isScalarPtr,		/* Must not be NULL. */
-    int line,			/* Line the token starts on. */
-    int *clNext)		/* Reference to offset of next hidden cont.
-				 * line. */
+    int *isScalarPtr)		/* Must not be NULL. */
 {
    register const char *p;
    const char *name, *elName;
@@ -3367,8 +3358,6 @@ TclPushVarName(

 	if (elName != NULL && !(flags & TCL_NO_ELEMENT)) {
 	    if (elNameChars) {
-		envPtr->line = line;
-		envPtr->clNext = clNext;
 		TclCompileTokens(interp, elemTokenPtr, elemTokenCount,
 			envPtr);
 	    } else {
@@ -3380,8 +3369,6 @@ TclPushVarName(
 	 * The var name isn't simple: compile and push it.
 	 */

-	envPtr->line = line;
-	envPtr->clNext = clNext;
 	CompileTokens(envPtr, varTokenPtr, interp);
    }

@@ -60,6 +60,7 @@ TclCompileGlobalCmd(
    int localIndex, numWords, i;
    DefineLineInformation;	/* TIP #280 */

+    /* TODO: Consider support for compiling expanded args. */
    numWords = parsePtr->numWords;
    if (numWords < 2) {
 	return TCL_ERROR;
@@ -84,14 +85,17 @@ TclCompileGlobalCmd(
     */

    varTokenPtr = TokenAfter(parsePtr->tokenPtr);
-    for (i=2; i<=numWords; varTokenPtr = TokenAfter(varTokenPtr),i++) {
+    for (i=1; i<numWords; varTokenPtr = TokenAfter(varTokenPtr),i++) {
 	localIndex = IndexTailVarIfKnown(interp, varTokenPtr, envPtr);

 	if (localIndex < 0) {
 	    return TCL_ERROR;
 	}

-	CompileWord(envPtr, varTokenPtr, interp, 1);
+	/* TODO: Consider what value can pass throug the 
+	 * IndexTailVarIfKnown() screen.  Full CompileWord()
+	 * likely does not apply here.  Push known value instead. */
+	CompileWord(envPtr, varTokenPtr, interp, i);
 	TclEmitInstInt4(	INST_NSUPVAR, localIndex,	envPtr);
    }

@@ -142,10 +146,6 @@ TclCompileIfCmd(
    int jumpIndex = 0;		/* Avoid compiler warning. */
    int jumpFalseDist, numWords, wordIdx, numBytes, j, code;
    const char *word;
-    int savedStackDepth = envPtr->currStackDepth;
-				/* Saved stack depth at the start of the first
-				 * test; the envPtr current depth is restored
-				 * to this value at the start of each test. */
    int realCond = 1;		/* Set to 0 for static conditions:
 				 * "if 0 {..}" */
    int boolVal;		/* Value of static condition. */
@@ -203,7 +203,6 @@ TclCompileIfCmd(
 	 * the "then" part.
 	 */

-	envPtr->currStackDepth = savedStackDepth;
 	testTokenPtr = tokenPtr;

 	if (realCond) {
@@ -269,9 +268,7 @@ TclCompileIfCmd(
 	 */

 	if (compileScripts) {
-	    SetLineInformation(wordIdx);
-	    envPtr->currStackDepth = savedStackDepth;
-	    CompileBody(envPtr, tokenPtr, interp);
+	    BODY(tokenPtr, wordIdx);
 	}

 	if (realCond) {
@@ -295,6 +292,7 @@ TclCompileIfCmd(
 	     * with a 4 byte jump.
 	     */

+	    TclAdjustStackDepth(-1, envPtr);
 	    if (TclFixupForwardJumpToHere(envPtr,
 		    jumpFalseFixupArray.fixup+jumpIndex, 120)) {
 		/*
@@ -324,13 +322,6 @@ TclCompileIfCmd(
 	wordIdx++;
    }

-    /*
-     * Restore the current stack depth in the environment; the "else" clause
-     * (or its default) will add 1 to this.
-     */
-
-    envPtr->currStackDepth = savedStackDepth;
-
    /*
     * Check for the optional else clause. Do not compile anything if this was
     * an "if 1 {...}" case.
@@ -357,8 +348,7 @@ TclCompileIfCmd(
 	     * Compile the else command body.
 	     */

-	    SetLineInformation(wordIdx);
-	    CompileBody(envPtr, tokenPtr, interp);
+	    BODY(tokenPtr, wordIdx);
 	}

 	/*
@@ -416,7 +406,6 @@ TclCompileIfCmd(
     */

  done:
-    envPtr->currStackDepth = savedStackDepth + 1;
    TclFreeJumpFixupArray(&jumpFalseFixupArray);
    TclFreeJumpFixupArray(&jumpEndFixupArray);
    return code;
@@ -598,6 +587,7 @@ TclCompileInfoCommandsCmd(
     * that the result needs to be list-ified.
     */

+    /* TODO: Just push the known value */
    CompileWord(envPtr, tokenPtr,		interp, 1);
    TclEmitOpcode(	INST_RESOLVE_COMMAND,	envPtr);
    TclEmitOpcode(	INST_DUP,		envPtr);
@@ -714,8 +704,7 @@ TclCompileInfoLevelCmd(
 	 * list of arguments.
 	 */

-	SetLineInformation(1);
-	CompileTokens(envPtr, TokenAfter(parsePtr->tokenPtr), interp);
+	CompileWord(envPtr, TokenAfter(parsePtr->tokenPtr), interp, 1);
 	TclEmitOpcode(		INST_INFO_LEVEL_ARGS,		envPtr);
    }
    return TCL_OK;
@@ -836,6 +825,7 @@ TclCompileLappendCmd(
 	return TCL_ERROR;
    }

+    /* TODO: Consider support for compiling expanded args. */
    numWords = parsePtr->numWords;
    if (numWords == 1) {
 	return TCL_ERROR;
@@ -1077,6 +1067,7 @@ TclCompileLindexCmd(
     * Quit if too few args.
     */

+    /* TODO: Consider support for compiling expanded args. */
    if (numWords <= 1) {
 	return TCL_ERROR;
    }
@@ -1599,6 +1590,7 @@ TclCompileLsetCmd(
     * Check argument count.
     */

+    /* TODO: Consider support for compiling expanded args. */
    if (parsePtr->numWords < 3) {
 	/*
 	 * Fail at run time, not in compilation.
@@ -1911,13 +1903,13 @@ TclCompileNamespaceUpvarCmd(
     */

    localTokenPtr = tokenPtr;
-    for (i=3; i<=numWords; i+=2) {
+    for (i=2; i<numWords; i+=2) {
 	otherTokenPtr = TokenAfter(localTokenPtr);
 	localTokenPtr = TokenAfter(otherTokenPtr);

-	CompileWord(envPtr, otherTokenPtr, interp, 1);
+	CompileWord(envPtr, otherTokenPtr, interp, i);
 	PushVarNameWord(interp, localTokenPtr, envPtr, 0,
-		&localIndex, &isScalar, 1);
+		&localIndex, &isScalar, i+1);

 	if ((localIndex < 0) || !isScalar) {
 	    return TCL_ERROR;
@@ -2375,7 +2367,7 @@ TclCompileReturnCmd(

 	CompileWord(envPtr, optsTokenPtr, interp, 2);
 	CompileWord(envPtr, msgTokenPtr,  interp, 3);
-	TclEmitOpcode(INST_RETURN_STK, envPtr);
+	TclEmitInvoke(envPtr, INST_RETURN_STK);
 	return TCL_OK;
    }

@@ -2389,6 +2381,10 @@ TclCompileReturnCmd(
     * Scan through the return options. If any are unknown at compile time,
     * there is no value in bytecompiling. Save the option values known in an
     * objv array for merging into a return options dictionary.
+     *
+     * TODO: There is potential for improvement if all option keys are known
+     * at compile time and all option values relating to '-code' and '-level'
+     * are known at compile time.
     */

    for (objc = 0; objc < numOptionWords; objc++) {
@@ -2396,7 +2392,7 @@ TclCompileReturnCmd(
 	Tcl_IncrRefCount(objv[objc]);
 	if (!TclWordKnownAtCompileTime(wordTokenPtr, objv[objc])) {
 	    /*
-	     * Non-literal, so punt to run-time.
+	     * Non-literal, so punt to run-time assembly of the dictionary.
 	     */

 	    for (; objc>=0 ; objc--) {
@@ -2517,7 +2513,7 @@ TclCompileReturnCmd(
     * Issue the RETURN itself.
     */

-    TclEmitOpcode(INST_RETURN_STK, envPtr);
+    TclEmitInvoke(envPtr, INST_RETURN_STK);
    return TCL_OK;
 }

@@ -2529,6 +2525,23 @@ CompileReturnInternal(
    int level,
    Tcl_Obj *returnOpts)
 {
+    if (level == 0 && (code == TCL_BREAK || code == TCL_CONTINUE)) {
+	ExceptionRange *rangePtr;
+	ExceptionAux *exceptAux;
+
+	rangePtr = TclGetInnermostExceptionRange(envPtr, code, &exceptAux);
+	if (rangePtr && rangePtr->type == LOOP_EXCEPTION_RANGE) {
+	    TclCleanupStackForBreakContinue(envPtr, exceptAux);
+	    if (code == TCL_BREAK) {
+		TclAddLoopBreakFixup(envPtr, exceptAux);
+	    } else {
+		TclAddLoopContinueFixup(envPtr, exceptAux);
+	    }
+	    Tcl_DecrRefCount(returnOpts);
+	    return;
+	}
+    }
+
    TclEmitPush(TclAddLiteralObj(envPtr, returnOpts, NULL), envPtr);
    TclEmitInstInt4(op, code, envPtr);
    TclEmitInt4(level, envPtr);
@@ -2547,6 +2560,7 @@ TclCompileSyntaxError(
    TclEmitPush(TclRegisterNewLiteral(envPtr, bytes, numBytes), envPtr);
    CompileReturnInternal(envPtr, INST_SYNTAX, TCL_ERROR, 0,
 	    TclNoErrorStack(interp, Tcl_GetReturnOptions(interp, TCL_ERROR)));
+    Tcl_ResetResult(interp);
 }

 /*
@@ -2579,16 +2593,14 @@ TclCompileUpvarCmd(
    Tcl_Token *tokenPtr, *otherTokenPtr, *localTokenPtr;
    int isScalar, localIndex, numWords, i;
    DefineLineInformation;	/* TIP #280 */
-    Tcl_Obj *objPtr = Tcl_NewObj();
+    Tcl_Obj *objPtr;

    if (envPtr->procPtr == NULL) {
-	Tcl_DecrRefCount(objPtr);
 	return TCL_ERROR;
    }

    numWords = parsePtr->numWords;
    if (numWords < 3) {
-	Tcl_DecrRefCount(objPtr);
 	return TCL_ERROR;
    }

@@ -2596,6 +2608,7 @@ TclCompileUpvarCmd(
     * Push the frame index if it is known at compile time
     */

+    objPtr = Tcl_NewObj();
    tokenPtr = TokenAfter(parsePtr->tokenPtr);
    if (TclWordKnownAtCompileTime(tokenPtr, objPtr)) {
 	CallFrame *framePtr;
@@ -2614,16 +2627,17 @@ TclCompileUpvarCmd(
 	    if (numWords%2) {
 		return TCL_ERROR;
 	    }
+	    /* TODO: Push the known value instead? */
 	    CompileWord(envPtr, tokenPtr, interp, 1);
 	    otherTokenPtr = TokenAfter(tokenPtr);
-	    i = 4;
+	    i = 2;
 	} else {
 	    if (!(numWords%2)) {
 		return TCL_ERROR;
 	    }
 	    PushStringLiteral(envPtr, "1");
 	    otherTokenPtr = tokenPtr;
-	    i = 3;
+	    i = 1;
 	}
    } else {
 	Tcl_DecrRefCount(objPtr);
@@ -2636,12 +2650,12 @@ TclCompileUpvarCmd(
     * be called at runtime.
     */

-    for (; i<=numWords; i+=2, otherTokenPtr = TokenAfter(localTokenPtr)) {
+    for (; i<numWords; i+=2, otherTokenPtr = TokenAfter(localTokenPtr)) {
 	localTokenPtr = TokenAfter(otherTokenPtr);

-	CompileWord(envPtr, otherTokenPtr, interp, 1);
+	CompileWord(envPtr, otherTokenPtr, interp, i);
 	PushVarNameWord(interp, localTokenPtr, envPtr, 0,
-		&localIndex, &isScalar, 1);
+		&localIndex, &isScalar, i+1);

 	if ((localIndex < 0) || !isScalar) {
 	    return TCL_ERROR;
@@ -2717,6 +2731,9 @@ TclCompileVariableCmd(
 	    return TCL_ERROR;
 	}

+	/* TODO: Consider what value can pass throug the 
+	 * IndexTailVarIfKnown() screen.  Full CompileWord()
+	 * likely does not apply here.  Push known value instead. */
 	CompileWord(envPtr, varTokenPtr, interp, i);
 	TclEmitInstInt4(	INST_VARIABLE, localIndex,	envPtr);

@@ -40,17 +40,14 @@ static int		CompileUnaryOpCmd(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, int instruction,
 			    CompileEnv *envPtr);
 static void		IssueSwitchChainedTests(Tcl_Interp *interp,
-			    CompileEnv *envPtr, ExtCmdLoc *mapPtr,
-			    int eclIndex, int mode, int noCase,
-			    int valueIndex, Tcl_Token *valueTokenPtr,
-			    int numWords, Tcl_Token **bodyToken,
-			    int *bodyLines, int **bodyNext);
-static void		IssueSwitchJumpTable(Tcl_Interp *interp,
-			    CompileEnv *envPtr, ExtCmdLoc *mapPtr,
-			    int eclIndex, int valueIndex,
-			    Tcl_Token *valueTokenPtr, int numWords,
+			    CompileEnv *envPtr, int mode, int noCase,
+			    int valueIndex, int numWords,
 			    Tcl_Token **bodyToken, int *bodyLines,
-			    int **bodyContLines);
+			    int **bodyNext);
+static void		IssueSwitchJumpTable(Tcl_Interp *interp,
+			    CompileEnv *envPtr, int valueIndex,
+			    int numWords, Tcl_Token **bodyToken,
+			    int *bodyLines, int **bodyContLines);
 static int		IssueTryClausesInstructions(Tcl_Interp *interp,
 			    CompileEnv *envPtr, Tcl_Token *bodyToken,
 			    int numHandlers, int *matchCodes,
@@ -88,8 +85,6 @@ const AuxDataType tclJumptableInfoType = {
    TclEmitInstInt1(INST_##name,(val1),envPtr);TclEmitInt4((val2),envPtr)
 #define OP44(name,val1,val2) \
    TclEmitInstInt4(INST_##name,(val1),envPtr);TclEmitInt4((val2),envPtr)
-#define BODY(token,index) \
-    SetLineInformation((index));CompileBody(envPtr,(token),interp)
 #define PUSH(str) \
    PushStringLiteral(envPtr, str)
 #define JUMP4(name,var) \
@@ -104,6 +99,8 @@ const AuxDataType tclJumptableInfoType = {
    if ((idx)<256) {OP1(LOAD_SCALAR1,(idx));} else {OP4(LOAD_SCALAR4,(idx));}
 #define STORE(idx) \
    if ((idx)<256) {OP1(STORE_SCALAR1,(idx));} else {OP4(STORE_SCALAR4,(idx));}
+#define INVOKE(name) \
+    TclEmitInvoke(envPtr,INST_##name)

 /*
 *----------------------------------------------------------------------
@@ -748,6 +745,9 @@ TclSubstCompile(
    Tcl_InterpState state = NULL;

    TclSubstParse(interp, bytes, numBytes, flags, &parse, &state);
+    if (state != NULL) {
+	Tcl_ResetResult(interp);
+    }

    /*
     * Tricky point! If the first token does not result in a *guaranteed* push
@@ -865,6 +865,7 @@ TclSubstCompile(
 	/* Substitution produced TCL_OK */
 	OP(	END_CATCH);
 	TclEmitForwardJump(envPtr, TCL_UNCONDITIONAL_JUMP, &okFixup);
+	TclAdjustStackDepth(-1, envPtr);

 	/* Exceptional return codes processed here */
 	ExceptionRangeTarget(envPtr, catchRange, catchOffset);
@@ -874,7 +875,7 @@ TclSubstCompile(
 	OP(	END_CATCH);
 	OP(	RETURN_CODE_BRANCH);

-	/* ERROR -> reraise it */
+	/* ERROR -> reraise it; NB: can't require BREAK/CONTINUE handling */
 	OP(	RETURN_STK);
 	OP(	NOP);

@@ -890,6 +891,7 @@ TclSubstCompile(
 	/* OTHER */
 	TclEmitForwardJump(envPtr, TCL_UNCONDITIONAL_JUMP, &otherFixup);

+	TclAdjustStackDepth(1, envPtr);
 	/* BREAK destination */
 	if (TclFixupForwardJumpToHere(envPtr, &breakFixup, 127)) {
 	    Tcl_Panic("TclCompileSubstCmd: bad break jump distance %d",
@@ -905,6 +907,7 @@ TclSubstCompile(
 	    OP1(JUMP1, -breakJump);
 	}

+	TclAdjustStackDepth(2, envPtr);
 	/* CONTINUE destination */
 	if (TclFixupForwardJumpToHere(envPtr, &continueFixup, 127)) {
 	    Tcl_Panic("TclCompileSubstCmd: bad continue jump distance %d",
@@ -914,6 +917,7 @@ TclSubstCompile(
 	OP(	POP);
 	TclEmitForwardJump(envPtr, TCL_UNCONDITIONAL_JUMP, &endFixup);

+	TclAdjustStackDepth(2, envPtr);
 	/* RETURN + other destination */
 	if (TclFixupForwardJumpToHere(envPtr, &returnFixup, 127)) {
 	    Tcl_Panic("TclCompileSubstCmd: bad return jump distance %d",
@@ -931,17 +935,6 @@ TclSubstCompile(
 	OP4(	REVERSE, 2);
 	OP(	POP);

-	/*
-	 * We've emitted several POP instructions, and the automatic
-	 * computations for stack depth requirements have been decrementing
-	 * for every one.  However, we know that every branch actually taken
-	 * only encounters some of those instructions.  No branch passes
-	 * through them all.  So, we now have a stack requirements estimate
-	 * that is too low.  Here we manually fix that up.
-	 */
-
-	TclAdjustStackDepth(4, envPtr);
-
 	/* OK destination */
 	if (TclFixupForwardJumpToHere(envPtr, &okFixup, 127)) {
 	    Tcl_Panic("TclCompileSubstCmd: bad ok jump distance %d",
@@ -1000,9 +993,6 @@ TclSubstCompile(
 *	Instructions are added to envPtr to execute the "switch" command at
 *	runtime.
 *
- * FIXME:
- *	Stack depths are probably not calculated correctly.
- *
 *----------------------------------------------------------------------
 */

@@ -1293,13 +1283,15 @@ TclCompileSwitchCmd(
     * but it handles the most common case well enough.
     */

+    /* Both methods push the value to match against onto the stack. */
+    CompileWord(envPtr, valueTokenPtr, interp, valueIndex);
+
    if (mode == Switch_Exact) {
-	IssueSwitchJumpTable(interp, envPtr, mapPtr, eclIndex, valueIndex,
-		valueTokenPtr, numWords, bodyToken, bodyLines, bodyContLines);
+	IssueSwitchJumpTable(interp, envPtr, valueIndex, numWords, bodyToken,
+		bodyLines, bodyContLines);
    } else {
-	IssueSwitchChainedTests(interp, envPtr, mapPtr, eclIndex, mode,noCase,
-		valueIndex, valueTokenPtr, numWords, bodyToken, bodyLines,
-		bodyContLines);
+	IssueSwitchChainedTests(interp, envPtr, mode, noCase, valueIndex,
+		numWords, bodyToken, bodyLines, bodyContLines);
    }
    result = TCL_OK;

@@ -1337,13 +1329,9 @@ static void
 IssueSwitchChainedTests(
    Tcl_Interp *interp,		/* Context for compiling script bodies. */
    CompileEnv *envPtr,		/* Holds resulting instructions. */
-    ExtCmdLoc *mapPtr,		/* For mapping tokens to their source code
-				 * location. */
-    int eclIndex,
    int mode,			/* Exact, Glob or Regexp */
    int noCase,			/* Case-insensitivity flag. */
    int valueIndex,		/* The value to match against. */
-    Tcl_Token *valueTokenPtr,
    int numBodyTokens,		/* Number of tokens describing things the
 				 * switch can match against and bodies to
 				 * execute when the match succeeds. */
@@ -1353,7 +1341,6 @@ IssueSwitchChainedTests(
    int **bodyContLines)	/* Array of continuation line info. */
 {
    enum {Switch_Exact, Switch_Glob, Switch_Regexp};
-    int savedStackDepth = envPtr->currStackDepth;
    int foundDefault;		/* Flag to indicate whether a "default" clause
 				 * is present. */
    JumpFixup *fixupArray;	/* Array of forward-jump fixup records. */
@@ -1368,13 +1355,6 @@ IssueSwitchChainedTests(
    int simple, exact;		/* For extracting the type of regexp. */
    int i;

-    /*
-     * First, we push the value we're matching against on the stack.
-     */
-
-    SetLineInformation(valueIndex);
-    CompileTokens(envPtr, valueTokenPtr, interp);
-
    /*
     * Generate a test for each arm.
     */
@@ -1388,7 +1368,6 @@ IssueSwitchChainedTests(
    foundDefault = 0;
    for (i=0 ; i<numBodyTokens ; i+=2) {
 	nextArmFixupIndex = -1;
-	envPtr->currStackDepth = savedStackDepth + 1;
 	if (i!=numBodyTokens-2 || bodyToken[numBodyTokens-2]->size != 7 ||
 		memcmp(bodyToken[numBodyTokens-2]->start, "default", 7)) {
 	    /*
@@ -1519,13 +1498,12 @@ IssueSwitchChainedTests(
 	}

 	/*
-	 * Now do the actual compilation. Note that we do not use CompileBody
+	 * Now do the actual compilation. Note that we do not use BODY() 
 	 * because we may have synthesized the tokens in a non-standard
 	 * pattern.
 	 */

 	OP(	POP);
-	envPtr->currStackDepth = savedStackDepth;
 	envPtr->line = bodyLines[i+1];		/* TIP #280 */
 	envPtr->clNext = bodyContLines[i+1];	/* TIP #280 */
 	TclCompileCmdWord(interp, bodyToken[i+1], 1, envPtr);
@@ -1583,8 +1561,6 @@ IssueSwitchChainedTests(
    }
    TclStackFree(interp, fixupTargetArray);
    TclStackFree(interp, fixupArray);
-
-    envPtr->currStackDepth = savedStackDepth + 1;
 }

 /*
@@ -1604,11 +1580,7 @@ static void
 IssueSwitchJumpTable(
    Tcl_Interp *interp,		/* Context for compiling script bodies. */
    CompileEnv *envPtr,		/* Holds resulting instructions. */
-    ExtCmdLoc *mapPtr,		/* For mapping tokens to their source code
-				 * location. */
-    int eclIndex,
    int valueIndex,		/* The value to match against. */
-    Tcl_Token *valueTokenPtr,
    int numBodyTokens,		/* Number of tokens describing things the
 				 * switch can match against and bodies to
 				 * execute when the match succeeds. */
@@ -1618,19 +1590,11 @@ IssueSwitchJumpTable(
    int **bodyContLines)	/* Array of continuation line info. */
 {
    JumptableInfo *jtPtr;
-    int savedStackDepth = envPtr->currStackDepth;
    int infoIndex, isNew, *finalFixups, numRealBodies = 0, jumpLocation;
    int mustGenerate, foundDefault, jumpToDefault, i;
    Tcl_DString buffer;
    Tcl_HashEntry *hPtr;

-    /*
-     * First, we push the value we're matching against on the stack.
-     */
-
-    SetLineInformation(valueIndex);
-    CompileTokens(envPtr, valueTokenPtr, interp);
-
    /*
     * Compile the switch by using a jump table, which is basically a
     * hashtable that maps from literal values to match against to the offset
@@ -1731,7 +1695,6 @@ IssueSwitchJumpTable(
 	 * Compile the body of the arm.
 	 */

-	envPtr->currStackDepth = savedStackDepth;
 	envPtr->line = bodyLines[i+1];		/* TIP #280 */
 	envPtr->clNext = bodyContLines[i+1];	/* TIP #280 */
 	TclCompileCmdWord(interp, bodyToken[i+1], 1, envPtr);
@@ -1753,6 +1716,7 @@ IssueSwitchJumpTable(
 	     */

 	    OP4(	JUMP4, 0);
+	    TclAdjustStackDepth(-1, envPtr);
 	}
    }

@@ -1763,7 +1727,6 @@ IssueSwitchJumpTable(
     */

    if (!foundDefault) {
-	envPtr->currStackDepth = savedStackDepth;
 	TclStoreInt4AtPtr(CurrentOffset(envPtr)-jumpToDefault,
 		envPtr->codeStart+jumpToDefault+1);
 	PUSH("");
@@ -1784,7 +1747,6 @@ IssueSwitchJumpTable(
     */

    TclStackFree(interp, finalFixups);
-    envPtr->currStackDepth = savedStackDepth + 1;
 }

 /*
@@ -1904,6 +1866,7 @@ TclCompileTailcallCmd(
    }

    /* make room for the nsObjPtr */
+    /* TODO: Doesn't this have to be a known value? */
    CompileWord(envPtr, tokenPtr, interp, 0);
    for (i=1 ; i<parsePtr->numWords ; i++) {
 	tokenPtr = TokenAfter(tokenPtr);
@@ -1942,9 +1905,9 @@ TclCompileThrowCmd(
 {
    DefineLineInformation;	/* TIP #280 */
    int numWords = parsePtr->numWords;
-    int savedStackDepth = envPtr->currStackDepth;
    Tcl_Token *codeToken, *msgToken;
    Tcl_Obj *objPtr;
+    int codeKnown, codeIsList, codeIsValid, len;

    if (numWords != 3) {
 	return TCL_ERROR;
@@ -1954,77 +1917,66 @@ TclCompileThrowCmd(

    TclNewObj(objPtr);
    Tcl_IncrRefCount(objPtr);
-    if (TclWordKnownAtCompileTime(codeToken, objPtr)) {
+
+    codeKnown = TclWordKnownAtCompileTime(codeToken, objPtr);
+
+    /*
+     * First we must emit the code to substitute the arguments.  This
+     * must come first in case substitution raises errors.
+     */
+    if (!codeKnown) {
+	CompileWord(envPtr, codeToken, interp, 1);
+	PUSH(			"-errorcode");
+    }
+    CompileWord(envPtr, msgToken, interp, 2);
+
+    codeIsList = codeKnown && (TCL_OK == 
+	    Tcl_ListObjLength(interp, objPtr, &len));
+    codeIsValid = codeIsList && (len != 0);
+
+    if (codeIsValid) {
 	Tcl_Obj *errPtr, *dictPtr;
-	const char *string;
-	int len;

-	/*
-	 * The code is known at compilation time. This allows us to issue a
-	 * very efficient sequence of instructions.
-	 */
-
-	if (Tcl_ListObjLength(interp, objPtr, &len) != TCL_OK) {
-	    /*
-	     * Must still do this; might generate an error when getting this
-	     * "ignored" value prepared as an argument.
-	     */
-
-	    CompileWord(envPtr, msgToken, interp, 2);
-	    TclCompileSyntaxError(interp, envPtr);
-	    Tcl_DecrRefCount(objPtr);
-	    envPtr->currStackDepth = savedStackDepth + 1;
-	    return TCL_OK;
-	}
-	if (len == 0) {
-	    /*
-	     * Must still do this; might generate an error when getting this
-	     * "ignored" value prepared as an argument.
-	     */
-
-	    CompileWord(envPtr, msgToken, interp, 2);
-	    goto issueErrorForEmptyCode;
-	}
 	TclNewLiteralStringObj(errPtr, "-errorcode");
 	TclNewObj(dictPtr);
 	Tcl_DictObjPut(NULL, dictPtr, errPtr, objPtr);
-	Tcl_IncrRefCount(dictPtr);
-	string = Tcl_GetStringFromObj(dictPtr, &len);
-	CompileWord(envPtr, msgToken, interp, 2);
-	PushLiteral(envPtr, string, len);
-	TclDecrRefCount(dictPtr);
-	OP44(				RETURN_IMM, 1, 0);
-	envPtr->currStackDepth = savedStackDepth + 1;
-    } else {
-	/*
-	 * When the code token is not known at compilation time, we need to do
-	 * a little bit more work. The main tricky bit here is that the error
-	 * code has to be a list (a [throw] restriction) so we must emit extra
-	 * instructions to enforce that condition.
-	 */
-
-	CompileWord(envPtr, codeToken, interp, 1);
-	PUSH(				"-errorcode");
-	CompileWord(envPtr, msgToken, interp, 2);
-	OP4(				REVERSE, 3);
-	OP(				DUP);
-	OP(				LIST_LENGTH);
-	OP1(				JUMP_FALSE1, 16);
-	OP4(				LIST, 2);
-	OP44(				RETURN_IMM, 1, 0);
-
-	/*
-	 * Generate an error for being an empty list. Can't leverage anything
-	 * else to do this for us.
-	 */
-
-    issueErrorForEmptyCode:
-	PUSH(				"type must be non-empty list");
-	PUSH(				"");
-	OP44(				RETURN_IMM, 1, 0);
+	TclEmitPush(TclAddLiteralObj(envPtr, dictPtr, NULL), envPtr);
    }
-    envPtr->currStackDepth = savedStackDepth + 1;
    TclDecrRefCount(objPtr);
+
+    /*
+     * Simpler bytecodes when we detect invalid arguments at compile time.
+     */
+    if (codeKnown && !codeIsValid) {
+	OP(			POP);
+	if (codeIsList) {
+	    /* Must be an empty list */
+	    goto issueErrorForEmptyCode;
+	}
+	TclCompileSyntaxError(interp, envPtr);
+	return TCL_OK;
+    }
+
+    if (!codeKnown) {
+	/*
+	 * Argument validity checking has to be done by bytecode at
+	 * run time.
+	 */
+	OP4(			REVERSE, 3);
+	OP(			DUP);
+	OP(			LIST_LENGTH);
+	OP1(			JUMP_FALSE1, 16);
+	OP4(			LIST, 2);
+	OP44(			RETURN_IMM, TCL_ERROR, 0);
+	TclAdjustStackDepth(2, envPtr);
+	OP(			POP);
+	OP(			POP);
+	OP(			POP);
+    issueErrorForEmptyCode:
+	PUSH(			"type must be non-empty list");
+	PUSH(			"-errorcode {TCL OPERATION THROW BADEXCEPTION}");
+    }
+    OP44(			RETURN_IMM, TCL_ERROR, 0);
    return TCL_OK;
 }

@@ -2074,8 +2026,7 @@ TclCompileTryCmd(
 	 */

 	DefineLineInformation;	/* TIP #280 */
-	SetLineInformation(1);
-	CompileBody(envPtr, bodyToken, interp);
+	BODY(bodyToken, 1);
 	return TCL_OK;
    }

@@ -2447,7 +2398,7 @@ IssueTryClausesInstructions(
 	    TclAdjustStackDepth(-1, envPtr);
 	    FIXJUMP1(		dontChangeOptions);
 	    OP4(			REVERSE, 2);
-	    OP(				RETURN_STK);
+	    INVOKE(			RETURN_STK);
 	}

 	JUMP4(				JUMP, addrsToFix[i]);
@@ -2466,7 +2417,7 @@ IssueTryClausesInstructions(
    OP(					POP);
    LOAD(				optionsVar);
    LOAD(				resultVar);
-    OP(					RETURN_STK);
+    INVOKE(				RETURN_STK);

    /*
     * Fix all the jumps from taken clauses to here (which is the end of the
@@ -2703,15 +2654,13 @@ IssueTryClausesFinallyInstructions(
 	/* Skip POP at end; can clean up with subsequent POP */
 	if (i+1 < numHandlers) {
 	    OP(				POP);
-	} else {
-	    TclAdjustStackDepth(-1, envPtr);
 	}

    endOfThisArm:
 	if (i+1 < numHandlers) {
 	    JUMP4(			JUMP, addrsToFix[i]);
+	    TclAdjustStackDepth(1, envPtr);
 	}
-	TclAdjustStackDepth(1, envPtr);
 	if (matchClauses[i]) {
 	    FIXJUMP4(		notECJumpSource);
 	}
@@ -2777,7 +2726,7 @@ IssueTryClausesFinallyInstructions(
    FIXJUMP1(			finalOK);
    LOAD(				optionsVar);
    LOAD(				resultVar);
-    OP(					RETURN_STK);
+    INVOKE(				RETURN_STK);

    return TCL_OK;
 }
@@ -2836,7 +2785,7 @@ IssueTryFinallyInstructions(
    OP1(				JUMP1, 7);
    FIXJUMP1(		jumpOK);
    OP4(				REVERSE, 2);
-    OP(					RETURN_STK);
+    INVOKE(				RETURN_STK);
    return TCL_OK;
 }

@@ -2868,38 +2817,81 @@ TclCompileUnsetCmd(
    CompileEnv *envPtr)		/* Holds resulting instructions. */
 {
    Tcl_Token *varTokenPtr;
-    int isScalar, localIndex, numWords, flags, i;
-    Tcl_Obj *leadingWord;
+    int isScalar, localIndex, flags = 1, i, varCount = 0, haveFlags = 0;
    DefineLineInformation;	/* TIP #280 */

-    numWords = parsePtr->numWords-1;
-    flags = 1;
-    varTokenPtr = TokenAfter(parsePtr->tokenPtr);
-    leadingWord = Tcl_NewObj();
-    if (numWords > 0 && TclWordKnownAtCompileTime(varTokenPtr, leadingWord)) {
-	int len;
-	const char *bytes = Tcl_GetStringFromObj(leadingWord, &len);
+    /* TODO: Consider support for compiling expanded args. */

-	if (len == 11 && !strncmp("-nocomplain", bytes, 11)) {
-	    flags = 0;
-	    varTokenPtr = TokenAfter(varTokenPtr);
-	    numWords--;
-	} else if (len == 2 && !strncmp("--", bytes, 2)) {
-	    varTokenPtr = TokenAfter(varTokenPtr);
-	    numWords--;
+    /*
+     * Verify that all words - except the first non-option one - are known at
+     * compile time so that we can handle them without needing to do a nasty
+     * push/rotate. [Bug 3970f54c4e]
+     */
+
+    for (i=1,varTokenPtr=parsePtr->tokenPtr ; i<parsePtr->numWords ; i++) {
+	Tcl_Obj *leadingWord = Tcl_NewObj();
+
+	varTokenPtr = TokenAfter(varTokenPtr);
+	if (!TclWordKnownAtCompileTime(varTokenPtr, leadingWord)) {
+	    TclDecrRefCount(leadingWord);
+
+	    /*
+	     * We can tolerate non-trivial substitutions in the first variable
+	     * to be unset. If a '--' or '-nocomplain' was present, anything
+	     * goes in that one place! (All subsequent variable names must be
+	     * constants since we don't want to have to push them all first.)
+	     */
+
+	    if (varCount == 0) {
+		if (haveFlags) {
+		    continue;
+		}
+
+		/*
+		 * In fact, we're OK as long as we're the first argument *and*
+		 * we provably don't start with a '-'. If that is true, then
+		 * even if everything else is varying, we still can't be a
+		 * flag. Otherwise we'll spill to runtime to place a limit on
+		 * the trickiness.
+		 */
+
+		if (varTokenPtr->type == TCL_TOKEN_WORD
+			&& varTokenPtr[1].type == TCL_TOKEN_TEXT
+			&& varTokenPtr[1].size > 0
+			&& varTokenPtr[1].start[0] != '-') {
+		    continue;
+		}
+	    }
+	    return TCL_ERROR;
 	}
-    } else {
-	/*
-	 * Cannot guarantee that the first word is not '-nocomplain' at
-	 * evaluation with reasonable effort, so spill to interpreted version.
-	 */
+	if (i == 1) {
+	    const char *bytes;
+	    int len;

+	    bytes = Tcl_GetStringFromObj(leadingWord, &len);
+	    if (len == 11 && !strncmp("-nocomplain", bytes, 11)) {
+		flags = 0;
+		haveFlags = 1;
+	    } else if (len == 2 && !strncmp("--", bytes, 2)) {
+		haveFlags = 1;
+	    } else {
+		varCount++;
+	    }
+	} else {
+	    varCount++;
+	}
 	TclDecrRefCount(leadingWord);
-	return TCL_ERROR;
    }
-    TclDecrRefCount(leadingWord);

-    for (i=0 ; i<numWords ; i++) {
+    /*
+     * Issue instructions to unset each of the named variables.
+     */
+
+    varTokenPtr = TokenAfter(parsePtr->tokenPtr);
+    if (haveFlags) {
+	varTokenPtr = TokenAfter(varTokenPtr);
+    }
+    for (i=1+haveFlags ; i<parsePtr->numWords ; i++) {
 	/*
 	 * Decide if we can use a frame slot for the var/array name or if we
 	 * need to emit code to compute and push the name at runtime. We use a
@@ -2909,7 +2901,7 @@ TclCompileUnsetCmd(
 	 */

 	PushVarNameWord(interp, varTokenPtr, envPtr, 0,
-		&localIndex, &isScalar, 1);
+		&localIndex, &isScalar, i);

 	/*
 	 * Emit instructions to unset the variable.
@@ -2965,7 +2957,6 @@ TclCompileWhileCmd(
    Tcl_Token *testTokenPtr, *bodyTokenPtr;
    JumpFixup jumpEvalCondFixup;
    int testCodeOffset, bodyCodeOffset, jumpDist, range, code, boolVal;
-    int savedStackDepth = envPtr->currStackDepth;
    int loopMayEnd = 1;		/* This is set to 0 if it is recognized as an
 				 * infinite loop. */
    Tcl_Obj *boolObj;
@@ -3057,15 +3048,13 @@ TclCompileWhileCmd(
     * Compile the loop body.
     */

-    SetLineInformation(2);
    bodyCodeOffset = ExceptionRangeStarts(envPtr, range);
    if (!loopMayEnd) {
 	envPtr->exceptArrayPtr[range].continueOffset = testCodeOffset;
 	envPtr->exceptArrayPtr[range].codeOffset = bodyCodeOffset;
    }
-    CompileBody(envPtr, bodyTokenPtr, interp);
+    BODY(bodyTokenPtr, 2);
    ExceptionRangeEnds(envPtr, range);
-    envPtr->currStackDepth = savedStackDepth + 1;
    OP(		POP);

    /*
@@ -3080,10 +3069,8 @@ TclCompileWhileCmd(
 	    bodyCodeOffset += 3;
 	    testCodeOffset += 3;
 	}
-	envPtr->currStackDepth = savedStackDepth;
 	SetLineInformation(1);
 	TclCompileExprWords(interp, testTokenPtr, 1, envPtr);
-	envPtr->currStackDepth = savedStackDepth + 1;

 	jumpDist = CurrentOffset(envPtr) - bodyCodeOffset;
 	if (jumpDist > 127) {
@@ -3114,7 +3101,6 @@ TclCompileWhileCmd(
     */

  pushResult:
-    envPtr->currStackDepth = savedStackDepth;
    PUSH("");
    return TCL_OK;
 }
@@ -3233,6 +3219,7 @@ CompileAssociativeBinaryOpCmd(
    DefineLineInformation;	/* TIP #280 */
    int words;

+    /* TODO: Consider support for compiling expanded args. */
    for (words=1 ; words<parsePtr->numWords ; words++) {
 	tokenPtr = TokenAfter(tokenPtr);
 	CompileWord(envPtr, tokenPtr, interp, words);
@@ -3316,6 +3303,7 @@ CompileComparisonOpCmd(
    Tcl_Token *tokenPtr;
    DefineLineInformation;	/* TIP #280 */

+    /* TODO: Consider support for compiling expanded args. */
    if (parsePtr->numWords < 3) {
 	PUSH("1");
    } else if (parsePtr->numWords == 3) {
@@ -3653,6 +3641,7 @@ TclCompileMinusOpCmd(
    DefineLineInformation;	/* TIP #280 */
    int words;

+    /* TODO: Consider support for compiling expanded args. */
    if (parsePtr->numWords == 1) {
 	/*
 	 * Fallback to direct eval to report syntax error.
@@ -3698,6 +3687,7 @@ TclCompileDivOpCmd(
    DefineLineInformation;	/* TIP #280 */
    int words;

+    /* TODO: Consider support for compiling expanded args. */
    if (parsePtr->numWords == 1) {
 	/*
 	 * Fallback to direct eval to report syntax error.
@@ -490,13 +490,6 @@ typedef struct JumpList {
    JumpFixup jump;		/* Pass this argument to matching calls of
 				 * TclEmitForwardJump() and 
 				 * TclFixupForwardJump(). */
-    int depth;			/* Remember the currStackDepth of the
-				 * CompileEnv here. */
-    int offset;			/* Data used to compute jump lengths to pass
-				 * to TclFixupForwardJump() */
-    int convert;		/* Temporary storage used to compute whether
-				 * numeric conversion will be needed following
-				 * the operator we're compiling. */
    struct JumpList *next;	/* Point to next item on the stack */
 } JumpList;

@@ -2261,30 +2254,8 @@ CompileExprTree(
 	if (nodePtr->mark == MARK_LEFT) {
 	    next = nodePtr->left;

-	    switch (nodePtr->lexeme) {
-	    case QUESTION:
-		newJump = TclStackAlloc(interp, sizeof(JumpList));
-		newJump->next = jumpPtr;
-		jumpPtr = newJump;
-		newJump = TclStackAlloc(interp, sizeof(JumpList));
-		newJump->next = jumpPtr;
-		jumpPtr = newJump;
-		jumpPtr->depth = envPtr->currStackDepth;
+	    if (nodePtr->lexeme == QUESTION) {
 		convert = 1;
-		break;
-	    case AND:
-	    case OR:
-		newJump = TclStackAlloc(interp, sizeof(JumpList));
-		newJump->next = jumpPtr;
-		jumpPtr = newJump;
-		newJump = TclStackAlloc(interp, sizeof(JumpList));
-		newJump->next = jumpPtr;
-		jumpPtr = newJump;
-		newJump = TclStackAlloc(interp, sizeof(JumpList));
-		newJump->next = jumpPtr;
-		jumpPtr = newJump;
-		jumpPtr->depth = envPtr->currStackDepth;
-		break;
 	    }
 	} else if (nodePtr->mark == MARK_RIGHT) {
 	    next = nodePtr->right;
@@ -2317,25 +2288,35 @@ CompileExprTree(
 		break;
 	    }
 	    case QUESTION:
+		newJump = TclStackAlloc(interp, sizeof(JumpList));
+		newJump->next = jumpPtr;
+		jumpPtr = newJump;
 		TclEmitForwardJump(envPtr, TCL_FALSE_JUMP, &jumpPtr->jump);
 		break;
 	    case COLON:
-		CLANG_ASSERT(jumpPtr);
+		newJump = TclStackAlloc(interp, sizeof(JumpList));
+		newJump->next = jumpPtr;
+		jumpPtr = newJump;
 		TclEmitForwardJump(envPtr, TCL_UNCONDITIONAL_JUMP,
-			&jumpPtr->next->jump);
-		envPtr->currStackDepth = jumpPtr->depth;
-		jumpPtr->offset = (envPtr->codeNext - envPtr->codeStart);
-		jumpPtr->convert = convert;
+			&jumpPtr->jump);
+		TclAdjustStackDepth(-1, envPtr);
+		if (convert) {
+		    jumpPtr->jump.jumpType = TCL_TRUE_JUMP;
+		}
 		convert = 1;
 		break;
 	    case AND:
-		TclEmitForwardJump(envPtr, TCL_FALSE_JUMP, &jumpPtr->jump);
-		break;
 	    case OR:
-		TclEmitForwardJump(envPtr, TCL_TRUE_JUMP, &jumpPtr->jump);
+		newJump = TclStackAlloc(interp, sizeof(JumpList));
+		newJump->next = jumpPtr;
+		jumpPtr = newJump;
+		TclEmitForwardJump(envPtr, (nodePtr->lexeme == AND)
+			?  TCL_FALSE_JUMP : TCL_TRUE_JUMP, &jumpPtr->jump);
 		break;
 	    }
 	} else {
+	    int pc1, pc2, target;
+
 	    switch (nodePtr->lexeme) {
 	    case START:
 	    case QUESTION:
@@ -2354,9 +2335,9 @@ CompileExprTree(
 		 */
 		
 		if (numWords < 255) {
-		    TclEmitInstInt1(INST_INVOKE_STK1, numWords, envPtr);
+		    TclEmitInvoke(envPtr, INST_INVOKE_STK1, numWords);
 		} else {
-		    TclEmitInstInt4(INST_INVOKE_STK4, numWords, envPtr);
+		    TclEmitInvoke(envPtr, INST_INVOKE_STK4, numWords);
 		}

 		/*
@@ -2375,18 +2356,20 @@ CompileExprTree(
 		break;
 	    case COLON:
 		CLANG_ASSERT(jumpPtr);
-		if (TclFixupForwardJump(envPtr, &jumpPtr->next->jump,
-			(envPtr->codeNext - envPtr->codeStart)
-			- jumpPtr->next->jump.codeOffset, 127)) {
-		    jumpPtr->offset += 3;
+		if (jumpPtr->jump.jumpType == TCL_TRUE_JUMP) {
+		    jumpPtr->jump.jumpType = TCL_UNCONDITIONAL_JUMP;
+		    convert = 1;
+		}
+		target = jumpPtr->jump.codeOffset + 2;
+		if (TclFixupForwardJumpToHere(envPtr, &jumpPtr->jump, 127)) {
+		    target += 3;
 		}
-		TclFixupForwardJump(envPtr, &jumpPtr->jump,
-			jumpPtr->offset - jumpPtr->jump.codeOffset, 127);
-		convert |= jumpPtr->convert;
-		envPtr->currStackDepth = jumpPtr->depth + 1;
 		freePtr = jumpPtr;
 		jumpPtr = jumpPtr->next;
 		TclStackFree(interp, freePtr);
+		TclFixupForwardJump(envPtr, &jumpPtr->jump,
+			target - jumpPtr->jump.codeOffset, 127);
+
 		freePtr = jumpPtr;
 		jumpPtr = jumpPtr->next;
 		TclStackFree(interp, freePtr);
@@ -2394,29 +2377,24 @@ CompileExprTree(
 	    case AND:
 	    case OR:
 		CLANG_ASSERT(jumpPtr);
-		TclEmitForwardJump(envPtr, (nodePtr->lexeme == AND)
-			?  TCL_FALSE_JUMP : TCL_TRUE_JUMP,
-			&jumpPtr->next->jump);
+		pc1 = CurrentOffset(envPtr);
+		TclEmitInstInt1((nodePtr->lexeme == AND) ? INST_JUMP_FALSE1
+			: INST_JUMP_TRUE1, 0, envPtr);
 		TclEmitPush(TclRegisterNewLiteral(envPtr,
 			(nodePtr->lexeme == AND) ? "1" : "0", 1), envPtr);
-		TclEmitForwardJump(envPtr, TCL_UNCONDITIONAL_JUMP,
-			&jumpPtr->next->next->jump);
-		TclFixupForwardJumpToHere(envPtr, &jumpPtr->next->jump, 127);
+		pc2 = CurrentOffset(envPtr);
+		TclEmitInstInt1(INST_JUMP1, 0, envPtr);
+		TclAdjustStackDepth(-1, envPtr);
+		TclStoreInt1AtPtr(CurrentOffset(envPtr) - pc1,
+			envPtr->codeStart + pc1 + 1);
 		if (TclFixupForwardJumpToHere(envPtr, &jumpPtr->jump, 127)) {
-		    jumpPtr->next->next->jump.codeOffset += 3;
+		    pc2 += 3;
 		}
 		TclEmitPush(TclRegisterNewLiteral(envPtr,
 			(nodePtr->lexeme == AND) ? "0" : "1", 1), envPtr);
-		TclFixupForwardJumpToHere(envPtr, &jumpPtr->next->next->jump,
-			127);
+		TclStoreInt1AtPtr(CurrentOffset(envPtr) - pc2,
+			envPtr->codeStart + pc2 + 1);
 		convert = 0;
-		envPtr->currStackDepth = jumpPtr->depth + 1;
-		freePtr = jumpPtr;
-		jumpPtr = jumpPtr->next;
-		TclStackFree(interp, freePtr);
-		freePtr = jumpPtr;
-		jumpPtr = jumpPtr->next;
-		TclStackFree(interp, freePtr);
 		freePtr = jumpPtr;
 		jumpPtr = jumpPtr->next;
 		TclStackFree(interp, freePtr);
@@ -2485,8 +2463,7 @@ CompileExprTree(
 	    break;
 	}
 	case OT_TOKENS:
-	    TclCompileTokens(interp, tokenPtr+1, tokenPtr->numComponents,
-		    envPtr);
+	    CompileTokens(envPtr, tokenPtr, interp);
 	    tokenPtr += tokenPtr->numComponents + 1;
 	    break;
 	default:
@@ -193,13 +193,6 @@ typedef struct ExtCmdLoc {
    ECL *loc;			/* Command word locations (lines). */
    int nloc;			/* Number of allocated entries in 'loc'. */
    int nuloc;			/* Number of used entries in 'loc'. */
-    Tcl_HashTable litInfo;	/* Indexed by bytecode 'PC', to have the
-				 * information accessible per command and
-				 * argument, not per whole bytecode. Value is
-				 * index of command in 'loc', giving us the
-				 * literals to associate with line information
-				 * as command argument, see
-				 * TclArgumentBCEnter() */
 } ExtCmdLoc;

 /*
@@ -372,10 +365,6 @@ typedef struct CompileEnv {
 				 * encountered that have not yet been paired
 				 * with a corresponding
 				 * INST_INVOKE_EXPANDED. */
-    ContLineLoc *clLoc;		/* If not NULL, the table holding the
-				 * locations of the invisible continuation
-				 * lines in the input script, to adjust the
-				 * line counter. */
    int *clNext;		/* If not NULL, it refers to the next slot in
 				 * clLoc to check for an invisible
 				 * continuation line. */
@@ -991,6 +980,9 @@ MODULE_SCOPE ByteCode *	TclCompileObj(Tcl_Interp *interp, Tcl_Obj *objPtr,
 *----------------------------------------------------------------
 */

+MODULE_SCOPE int	TclAttemptCompileProc(Tcl_Interp *interp,
+			    Tcl_Parse *parsePtr, int depth, Command *cmdPtr,
+			    CompileEnv *envPtr);
 MODULE_SCOPE void	TclCleanupByteCode(ByteCode *codePtr);
 MODULE_SCOPE void	TclCleanupStackForBreakContinue(CompileEnv *envPtr,
 			    ExceptionAux *auxPtr);
@@ -1002,6 +994,9 @@ MODULE_SCOPE void	TclCompileExpr(Tcl_Interp *interp, const char *script,
 MODULE_SCOPE void	TclCompileExprWords(Tcl_Interp *interp,
 			    Tcl_Token *tokenPtr, int numWords,
 			    CompileEnv *envPtr);
+MODULE_SCOPE void	TclCompileInvocation(Tcl_Interp *interp,
+			    Tcl_Token *tokenPtr, Tcl_Obj *cmdObj, int numWords,
+			    CompileEnv *envPtr);
 MODULE_SCOPE void	TclCompileScript(Tcl_Interp *interp,
 			    const char *script, int numBytes,
 			    CompileEnv *envPtr);
@@ -1026,6 +1021,7 @@ MODULE_SCOPE void	TclDeleteLiteralTable(Tcl_Interp *interp,
 			    LiteralTable *tablePtr);
 MODULE_SCOPE void	TclEmitForwardJump(CompileEnv *envPtr,
 			    TclJumpType jumpType, JumpFixup *jumpFixupPtr);
+MODULE_SCOPE void	TclEmitInvoke(CompileEnv *envPtr, int opcode, ...);
 MODULE_SCOPE ExceptionRange * TclGetExceptionRangeForPc(unsigned char *pc,
 			    int catchOnly, ByteCode *codePtr);
 MODULE_SCOPE void	TclExpandJumpFixupArray(JumpFixupArray *fixupArrayPtr);
@@ -1074,7 +1070,7 @@ MODULE_SCOPE void	TclPrintSource(FILE *outFile,
 MODULE_SCOPE void	TclPushVarName(Tcl_Interp *interp,
 			    Tcl_Token *varTokenPtr, CompileEnv *envPtr,
 			    int flags, int *localIndexPtr,
-			    int *isScalarPtr, int line, int *clNext);
+			    int *isScalarPtr);
 MODULE_SCOPE int	TclRegisterLiteral(CompileEnv *envPtr,
 			    char *bytes, int length, int flags);
 MODULE_SCOPE void	TclReleaseLiteral(Tcl_Interp *interp, Tcl_Obj *objPtr);
@@ -1114,6 +1110,15 @@ MODULE_SCOPE Tcl_Obj	*TclNewInstNameObj(unsigned char inst);
 *----------------------------------------------------------------
 */

+/*
+ * Simplified form to access AuxData.
+ *
+ * ClientData TclFetchAuxData(CompileEng *envPtr, int index);
+ */
+
+#define TclFetchAuxData(envPtr, index) \
+    (envPtr)->auxDataArrayPtr[(index)].clientData
+
 #define LITERAL_ON_HEAP		0x01
 #define LITERAL_CMD_NAME	0x02

@@ -1407,16 +1412,16 @@ MODULE_SCOPE Tcl_Obj	*TclNewInstNameObj(unsigned char inst);
 #define TclMax(i, j)	((((int) i) > ((int) j))? (i) : (j))

 /*
- * Convenience macro for use when compiling bodies of commands. The ANSI C
- * "prototype" for this macro is:
+ * Convenience macros for use when compiling bodies of commands. The ANSI C
+ * "prototype" for these macros are:
 *
- * static void		CompileBody(CompileEnv *envPtr, Tcl_Token *tokenPtr,
- *			    Tcl_Interp *interp);
+ * static void		BODY(Tcl_Token *tokenPtr, int word);
 */

-#define CompileBody(envPtr, tokenPtr, interp) \
-    TclCompileCmdWord((interp), (tokenPtr)+1, (tokenPtr)->numComponents, \
-	    (envPtr))
+#define BODY(tokenPtr, word)						\
+    SetLineInformation((word));						\
+    TclCompileCmdWord(interp, (tokenPtr)+1, (tokenPtr)->numComponents,	\
+	    envPtr)

 /*
 * Convenience macro for use when compiling tokens to be pushed. The ANSI C
@@ -1515,13 +1520,10 @@ MODULE_SCOPE Tcl_Obj	*TclNewInstNameObj(unsigned char inst);

 #define CompileWord(envPtr, tokenPtr, interp, word) \
    if ((tokenPtr)->type == TCL_TOKEN_SIMPLE_WORD) {			\
-	TclEmitPush(TclRegisterNewLiteral((envPtr), (tokenPtr)[1].start, \
-		(tokenPtr)[1].size), (envPtr));				\
+	PushLiteral((envPtr), (tokenPtr)[1].start, (tokenPtr)[1].size);	\
    } else {								\
-	envPtr->line = mapPtr->loc[eclIndex].line[word];		\
-	envPtr->clNext = mapPtr->loc[eclIndex].next[word];		\
-	TclCompileTokens((interp), (tokenPtr)+1, (tokenPtr)->numComponents, \
-		(envPtr));						\
+	SetLineInformation((word));					\
+	CompileTokens((envPtr), (tokenPtr), (interp));			\
    }

 /*
@@ -1542,9 +1544,8 @@ MODULE_SCOPE Tcl_Obj	*TclNewInstNameObj(unsigned char inst);
    envPtr->clNext = mapPtr->loc[eclIndex].next[(word)]

 #define PushVarNameWord(i,v,e,f,l,sc,word) \
-    TclPushVarName(i,v,e,f,l,sc,						\
-	    mapPtr->loc[eclIndex].line[(word)],				\
-	    mapPtr->loc[eclIndex].next[(word)])
+    SetLineInformation(word);						\
+    TclPushVarName(i,v,e,f,l,sc)					

 /*
 * Often want to issue one of two versions of an instruction based on whether
@@ -26,14 +26,15 @@
 #define ASSOC_KEY	"tclPackageAboutDict"

 /*
- * A ClientData struct for the QueryConfig command.  Store the two bits
+ * A ClientData struct for the QueryConfig command.  Store the three bits
 * of data we need; the package name for which we store a config dict,
- * and the (Tcl_Interp *) in which it is stored.
+ * the (Tcl_Interp *) in which it is stored, and the encoding.
 */

 typedef struct QCCD {
    Tcl_Obj *pkg;
    Tcl_Interp *interp;
+    char *encoding;
 } QCCD;

 /*
@@ -75,22 +76,28 @@ Tcl_RegisterConfig(
    const char *valEncoding)	/* Name of the encoding used to store the
 				 * configuration values, ASCII, thus UTF-8. */
 {
+    Tcl_Obj *pDB, *pkgDict;
    Tcl_DString cmdName;
    const Tcl_Config *cfg;
-    Tcl_Encoding venc = Tcl_GetEncoding(NULL, valEncoding);
    QCCD *cdPtr = ckalloc(sizeof(QCCD));

    cdPtr->interp = interp;
+    if (valEncoding) {
+	cdPtr->encoding = ckalloc(strlen(valEncoding)+1);
+	strcpy(cdPtr->encoding, valEncoding);
+    } else {
+	cdPtr->encoding = NULL;
+    }
    cdPtr->pkg = Tcl_NewStringObj(pkgName, -1);

    /*
     * Phase I: Adding the provided information to the internal database of
-     * package meta data. Only if we have an ok encoding.
+     * package meta data.
     *
     * Phase II: Create a command for querying this database, specific to the
-     * package registerting its configuration. This is the approved interface
+     * package registering its configuration. This is the approved interface
     * in TIP 59. In the future a more general interface should be done, as
-     * followup to TIP 59. Simply because our database is now general across
+     * follow-up to TIP 59. Simply because our database is now general across
     * packages, and not a structure tied to one package.
     *
     * Note, the created command will have a reference through its clientdata.
@@ -103,52 +110,36 @@ Tcl_RegisterConfig(
     * dictionaries visible at Tcl level. I.e. they are not filled
     */

-    if (venc != NULL) {
-	Tcl_Obj *pkgDict, *pDB = GetConfigDict(interp);
+    pDB = GetConfigDict(interp);

-	/*
-	 * Retrieve package specific configuration...
-	 */
+    /*
+     * Retrieve package specific configuration...
+     */

-	if (Tcl_DictObjGet(interp, pDB, cdPtr->pkg, &pkgDict) != TCL_OK
-		|| (pkgDict == NULL)) {
-	    pkgDict = Tcl_NewDictObj();
-	} else if (Tcl_IsShared(pkgDict)) {
-	    pkgDict = Tcl_DuplicateObj(pkgDict);
-	}
-
-	/*
-	 * Extend the package configuration...
-	 */
-
-	for (cfg=configuration ; cfg->key!=NULL && cfg->key[0]!='\0' ; cfg++) {
-	    Tcl_DString conv;
-	    const char *convValue =
-		    Tcl_ExternalToUtfDString(venc, cfg->value, -1, &conv);
-
-	    /*
-	     * We know that the keys are in ASCII/UTF-8, so for them is no
-	     * conversion required.
-	     */
-
-	    Tcl_DictObjPut(interp, pkgDict, Tcl_NewStringObj(cfg->key, -1),
-		    Tcl_NewStringObj(convValue, -1));
-	    Tcl_DStringFree(&conv);
-	}
-
-	/*
-	 * We're now done with the encoding, so drop it.
-	 */
-
-	Tcl_FreeEncoding(venc);
-
-	/*
-	 * Write the changes back into the overall database.
-	 */
-
-	Tcl_DictObjPut(interp, pDB, cdPtr->pkg, pkgDict);
+    if (Tcl_DictObjGet(interp, pDB, cdPtr->pkg, &pkgDict) != TCL_OK
+	    || (pkgDict == NULL)) {
+	pkgDict = Tcl_NewDictObj();
+    } else if (Tcl_IsShared(pkgDict)) {
+	pkgDict = Tcl_DuplicateObj(pkgDict);
    }

+    /*
+     * Extend the package configuration...
+     * We cannot assume that the encodings are initialized, therefore
+     * store the value as-is in a byte array. See Bug [9b2e636361].
+     */
+
+    for (cfg=configuration ; cfg->key!=NULL && cfg->key[0]!='\0' ; cfg++) {
+	Tcl_DictObjPut(interp, pkgDict, Tcl_NewStringObj(cfg->key, -1),
+		Tcl_NewByteArrayObj((unsigned char *)cfg->value, strlen(cfg->value)));
+    }
+
+    /*
+     * Write the changes back into the overall database.
+     */
+
+    Tcl_DictObjPut(interp, pDB, cdPtr->pkg, pkgDict);
+
    /*
     * Now create the interface command for retrieval of the package
     * information.
@@ -218,6 +209,9 @@ QueryConfigObjCmd(
    enum subcmds {
 	CFG_GET, CFG_LIST
    };
+    Tcl_DString conv;
+    Tcl_Encoding venc = NULL;
+    const char *value;

    if ((objc < 2) || (objc > 3)) {
 	Tcl_WrongNumArgs(interp, 1, objv, "subcommand ?arg?");
@@ -257,7 +251,21 @@ QueryConfigObjCmd(
 	    return TCL_ERROR;
 	}

-	Tcl_SetObjResult(interp, val);
+	if (cdPtr->encoding) {
+	    venc = Tcl_GetEncoding(interp, cdPtr->encoding);
+	    if (!venc) {
+		return TCL_ERROR;
+	    }
+	}
+	/*
+	 * Value is stored as-is in a byte array, see Bug [9b2e636361],
+	 * so we have to decode it first.
+	 */
+	value = (const char *) Tcl_GetByteArrayFromObj(val, &n);
+	value = Tcl_ExternalToUtfDString(venc, value, n, &conv);
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(value,
+		Tcl_DStringLength(&conv)));
+	Tcl_DStringFree(&conv);
 	return TCL_OK;

    case CFG_LIST:
@@ -324,7 +332,10 @@ QueryConfigDelete(

    Tcl_DictObjRemove(NULL, pDB, pkgName);
    Tcl_DecrRefCount(pkgName);
-    ckfree(cdPtr);
+    if (cdPtr->encoding) {
+	ckfree((char *)cdPtr->encoding);
+    }
+    ckfree((char *)cdPtr);
 }

 /*
@@ -366,7 +377,7 @@ GetConfigDict(
 *
 *	This function is associated with the "Package About dict" assoc data
 *	for an interpreter; it is invoked when the interpreter is deleted in
- *	order to free the information assoicated with any pending error
+ *	order to free the information associated with any pending error
 *	reports.
 *
 * Results:
@@ -2686,7 +2686,7 @@ TclDatelex(

    location->first_column = yyInput - info->dateStart;
    for ( ; ; ) {
-	while (isspace(UCHAR(*yyInput))) {
+	while (TclIsSpaceProc(*yyInput)) {
 	    yyInput++;
 	}

@@ -35,9 +35,6 @@ static void		MakeCachedEnsembleCommand(Tcl_Obj *objPtr,
 static void		FreeEnsembleCmdRep(Tcl_Obj *objPtr);
 static void		DupEnsembleCmdRep(Tcl_Obj *objPtr, Tcl_Obj *copyPtr);
 static void		StringOfEnsembleCmdRep(Tcl_Obj *objPtr);
-static int		CompileToCompiledCommand(Tcl_Interp *interp,
-			    Tcl_Parse *parsePtr, int depth, Command *cmdPtr,
-			    CompileEnv *envPtr);
 static void		CompileToInvokedCommand(Tcl_Interp *interp,
 			    Tcl_Parse *parsePtr, Tcl_Obj *replacements,
 			    Command *cmdPtr, CompileEnv *envPtr);
@@ -88,16 +85,6 @@ const Tcl_ObjType tclEnsembleCmdType = {
    NULL			/* setFromAnyProc */
 };

-/*
- * Copied from tclCompCmds.c
- */
-
-#define DefineLineInformation \
-    ExtCmdLoc *mapPtr = envPtr->extCmdMapPtr;				\
-    int eclIndex = mapPtr->nuloc - 1
-#define SetLineInformation(word) \
-    envPtr->line = mapPtr->loc[eclIndex].line[(word)];			\
-    envPtr->clNext = mapPtr->loc[eclIndex].next[(word)]

 static inline Tcl_Obj *
 NewNsObj(
@@ -1537,6 +1524,14 @@ TclMakeEnsemble(
 	    cmdName = nameParts[nameCount - 1];
 	}
    }
+
+    /*
+     * Switch on compilation always for core ensembles now that we can do
+     * nice bytecode things with them.  Do it now.  Waiting until later will
+     * just cause pointless epoch bumps.
+     */
+
+    ensembleFlags |= ENSEMBLE_COMPILE;
    ensemble = Tcl_CreateEnsemble(interp, cmdName, ns, ensembleFlags);

    /*
@@ -1588,14 +1583,6 @@ TclMakeEnsemble(
 	    }
 	}
 	Tcl_SetEnsembleMappingDict(interp, ensemble, mapDict);
-
-	/*
-	 * Switch on compilation always for core ensembles now that we can do
-	 * nice bytecode things with them.
-	 */
-
-	Tcl_SetEnsembleFlags(interp, ensemble,
-		ensembleFlags | ENSEMBLE_COMPILE);
    }

    Tcl_DStringFree(&buf);
@@ -3004,8 +2991,8 @@ TclCompileEnsemble(
     */

    invokeAnyway = 1;
-    if (CompileToCompiledCommand(interp, parsePtr, depth, cmdPtr,
-	    envPtr) == TCL_OK) {
+    if (TCL_OK == TclAttemptCompileProc(interp, parsePtr, depth, cmdPtr,
+	    envPtr)) {
 	ourResult = TCL_OK;
 	goto cleanup;
    }
@@ -3039,95 +3026,88 @@ TclCompileEnsemble(
    return ourResult;
 }

-/*
- * How to compile a subcommand using its own command compiler. To do that, we
- * have to perform some trickery to rewrite the arguments, as compilers *must*
- * have parse tokens that refer to addresses in the original script.
- */
-
-static int
-CompileToCompiledCommand(
+int
+TclAttemptCompileProc(
    Tcl_Interp *interp,
    Tcl_Parse *parsePtr,
    int depth,
    Command *cmdPtr,
    CompileEnv *envPtr)		/* Holds resulting instructions. */
 {
-    Tcl_Parse synthetic;
-    Tcl_Token *tokenPtr;
    int result, i;
-    int savedNumCmds = envPtr->numCommands;
+    Tcl_Token *saveTokenPtr = parsePtr->tokenPtr;
    int savedStackDepth = envPtr->currStackDepth;
    unsigned savedCodeNext = envPtr->codeNext - envPtr->codeStart;
+    DefineLineInformation;

    if (cmdPtr->compileProc == NULL) {
 	return TCL_ERROR;
    }

-    TclParseInit(interp, NULL, 0, &synthetic);
-    synthetic.numWords = parsePtr->numWords - depth + 1;
-    TclGrowParseTokenArray(&synthetic, 2);
-    synthetic.numTokens = 2;
-
    /*
-     * Now we have the space to work in, install something rewritten. The
-     * first word will "officially" be the bytes of the structured ensemble
-     * name. That's technically wrong, but nobody will care; we just need
-     * *something* here...
+     * Advance parsePtr->tokenPtr so that it points at the last subcommand.
+     * This will be wrong, but it will not matter, and it will put the
+     * tokens for the arguments in the right place without the needed to
+     * allocate a synthetic Tcl_Parse struct, or copy tokens around.
     */

-    synthetic.tokenPtr[0].type = TCL_TOKEN_SIMPLE_WORD;
-    synthetic.tokenPtr[0].start = parsePtr->tokenPtr[0].start;
-    synthetic.tokenPtr[0].numComponents = 1;
-    synthetic.tokenPtr[1].type = TCL_TOKEN_TEXT;
-    synthetic.tokenPtr[1].start = parsePtr->tokenPtr[0].start;
-    synthetic.tokenPtr[1].numComponents = 0;
-    for (i=0,tokenPtr=parsePtr->tokenPtr ; i<depth ; i++) {
-	int sclen = (tokenPtr->start - synthetic.tokenPtr[0].start)
-		+ tokenPtr->size;
-
-	synthetic.tokenPtr[0].size = sclen;
-	synthetic.tokenPtr[1].size = sclen;
-	tokenPtr = TokenAfter(tokenPtr);
+    for (i = 0; i < depth - 1; i++) {
+	parsePtr->tokenPtr = TokenAfter(parsePtr->tokenPtr);
    }
+    parsePtr->numWords -= (depth - 1);

    /*
-     * Copy over the real argument tokens.
+     * Shift the line information arrays to account for different word
+     * index values.
     */

-    for (i=1; i<synthetic.numWords; i++) {
-	int toCopy;
-
-	toCopy = tokenPtr->numComponents + 1;
-	TclGrowParseTokenArray(&synthetic, toCopy);
-	memcpy(synthetic.tokenPtr + synthetic.numTokens, tokenPtr,
-		sizeof(Tcl_Token) * toCopy);
-	synthetic.numTokens += toCopy;
-	tokenPtr = TokenAfter(tokenPtr);
-    }
+    mapPtr->loc[eclIndex].line += (depth - 1);
+    mapPtr->loc[eclIndex].next += (depth - 1);

    /*
     * Hand off compilation to the subcommand compiler. At last!
     */

-    result = cmdPtr->compileProc(interp, &synthetic, cmdPtr, envPtr);
+    result = cmdPtr->compileProc(interp, parsePtr, cmdPtr, envPtr);

    /*
-     * If our target fails to compile, revert the number of commands and the
-     * pointer to the place to issue the next instruction. [Bug 3600328]
+     * Undo the shift. 
+     */
+
+    mapPtr->loc[eclIndex].line -= (depth - 1);
+    mapPtr->loc[eclIndex].next -= (depth - 1);
+
+    parsePtr->numWords += (depth - 1);
+    parsePtr->tokenPtr = saveTokenPtr;
+
+    /*
+     * If our target failed to compile, revert any data from failed partial
+     * compiles.  Note that envPtr->numCommands need not be checked because
+     * we avoid compiling subcommands that recursively call TclCompileScript().
     */

    if (result != TCL_OK) {
-	envPtr->numCommands = savedNumCmds;
 	envPtr->currStackDepth = savedStackDepth;
 	envPtr->codeNext = envPtr->codeStart + savedCodeNext;
+#ifdef TCL_COMPILE_DEBUG
+    } else {
+	/*
+	 * Confirm that the command compiler generated a single value on
+	 * the stack as its result. This is only done in debugging mode,
+	 * as it *should* be correct and normal users have no reasonable
+	 * way to fix it anyway.
+	 */
+
+	int diff = envPtr->currStackDepth - savedStackDepth;
+
+	if (diff != 1) {
+	    Tcl_Panic("bad stack adjustment when compiling"
+		    " %.*s (was %d instead of 1)", parsePtr->tokenPtr->size,
+		    parsePtr->tokenPtr->start, diff);
+	}
+#endif
    }

-    /*
-     * Clean up if necessary.
-     */
-
-    Tcl_FreeParse(&synthetic);
    return result;
 }

@@ -3157,11 +3137,16 @@ CompileToInvokedCommand(
     */

    Tcl_ListObjGetElements(NULL, replacements, &numWords, &words);
-    for (i=0,tokPtr=parsePtr->tokenPtr ; i<parsePtr->numWords ; i++) {
+    for (i = 0, tokPtr = parsePtr->tokenPtr; i < parsePtr->numWords;
+	    i++, tokPtr = TokenAfter(tokPtr)) {
 	if (i > 0 && i < numWords+1) {
 	    bytes = Tcl_GetStringFromObj(words[i-1], &length);
 	    PushLiteral(envPtr, bytes, length);
-	} else if (tokPtr->type == TCL_TOKEN_SIMPLE_WORD) {
+	    continue;
+	}
+
+	SetLineInformation(i);
+	if (tokPtr->type == TCL_TOKEN_SIMPLE_WORD) {
 	    int literal = TclRegisterNewLiteral(envPtr,
 		    tokPtr[1].start, tokPtr[1].size);

@@ -3169,16 +3154,12 @@ CompileToInvokedCommand(
 		TclContinuationsEnterDerived(
 			TclFetchLiteral(envPtr, literal),
 			tokPtr[1].start - envPtr->source,
-			mapPtr->loc[eclIndex].next[i]);
+			envPtr->clNext);
 	    }
 	    TclEmitPush(literal, envPtr);
 	} else {
-	    if (envPtr->clNext) {
-		SetLineInformation(i);
-	    }
 	    CompileTokens(envPtr, tokPtr, interp);
 	}
-	tokPtr = TokenAfter(tokPtr);
    }

    /*
@@ -3198,9 +3179,7 @@ CompileToInvokedCommand(
     * Do the replacing dispatch.
     */

-    TclEmitInstInt4(INST_INVOKE_REPLACE, parsePtr->numWords, envPtr);
-    TclEmitInt1(numWords+1, envPtr);
-    TclAdjustStackDepth(-1, envPtr);	/* Correction to stack depth calcs. */
+    TclEmitInvoke(envPtr, INST_INVOKE_REPLACE, parsePtr->numWords,numWords+1);
 }

 /*
@@ -3224,51 +3203,13 @@ CompileBasicNArgCommand(
 				 * compiled. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
 {
-    Tcl_Token *tokenPtr;
-    Tcl_Obj *objPtr;
-    char *bytes;
-    int length, i, literal;
-    DefineLineInformation;
+    Tcl_Obj *objPtr = Tcl_NewObj();

-    /*
-     * Push the name of the command we're actually dispatching to as part of
-     * the implementation.
-     */
-
-    objPtr = Tcl_NewObj();
+    Tcl_IncrRefCount(objPtr);
    Tcl_GetCommandFullName(interp, (Tcl_Command) cmdPtr, objPtr);
-    bytes = Tcl_GetStringFromObj(objPtr, &length);
-    literal = TclRegisterNewCmdLiteral(envPtr, bytes, length);
-    TclSetCmdNameObj(interp, TclFetchLiteral(envPtr, literal), cmdPtr);
-    TclEmitPush(literal, envPtr);
-    TclDecrRefCount(objPtr);
-
-    /*
-     * Push the words of the command.
-     */
-
-    tokenPtr = TokenAfter(parsePtr->tokenPtr);
-    for (i=1 ; i<parsePtr->numWords ; i++) {
-	if (envPtr->clNext) {
-	    SetLineInformation(i);
-	}
-	if (tokenPtr->type == TCL_TOKEN_SIMPLE_WORD) {
-	    PushLiteral(envPtr, tokenPtr[1].start, tokenPtr[1].size);
-	} else {
-	    CompileTokens(envPtr, tokenPtr, interp);
-	}
-	tokenPtr = TokenAfter(tokenPtr);
-    }
-
-    /*
-     * Do the standard dispatch.
-     */
-
-    if (i <= 255) {
-	TclEmitInstInt1(INST_INVOKE_STK1, i, envPtr);
-    } else {
-	TclEmitInstInt4(INST_INVOKE_STK4, i, envPtr);
-    }
+    TclCompileInvocation(interp, parsePtr->tokenPtr, objPtr,
+	    parsePtr->numWords, envPtr);
+    Tcl_DecrRefCount(objPtr);
    return TCL_OK;
 }

@@ -76,36 +76,56 @@ TclSetupEnv(
    Tcl_Interp *interp)		/* Interpreter whose "env" array is to be
 				 * managed. */
 {
+    Var *varPtr, *arrayPtr;
+    Tcl_Obj *varNamePtr;
    Tcl_DString envString;
-    char *p1, *p2;
-    int i;
+    Tcl_HashTable namesHash;
+    Tcl_HashEntry *hPtr;
+    Tcl_HashSearch search;

    /*
     * Synchronize the values in the environ array with the contents of the
     * Tcl "env" variable. To do this:
-     *    1) Remove the trace that fires when the "env" var is unset.
-     *    2) Unset the "env" variable.
-     *    3) If there are no environ variables, create an empty "env" array.
-     *	     Otherwise populate the array with current values.
-     *    4) Add a trace that synchronizes the "env" array.
+     *    1) Remove the trace that fires when the "env" var is updated.
+     *    2) Find the existing contents of the "env", storing in a hash table.
+     *    3) Create/update elements for each environ variable, removing
+     *	     elements from the hash table as we go.
+     *    4) Remove the elements for each remaining entry in the hash table,
+     *	     which must have existed before yet have no analog in the environ
+     *	     variable.
+     *    5) Add a trace that synchronizes the "env" array.
     */

    Tcl_UntraceVar2(interp, "env", NULL,
 	    TCL_GLOBAL_ONLY | TCL_TRACE_WRITES | TCL_TRACE_UNSETS |
 	    TCL_TRACE_READS | TCL_TRACE_ARRAY, EnvTraceProc, NULL);

-    Tcl_UnsetVar2(interp, "env", NULL, TCL_GLOBAL_ONLY);
+    /*
+     * Find out what elements are currently in the global env array.
+     */

-    if (environ[0] == NULL) {
-	Tcl_Obj *varNamePtr;
+    TclNewLiteralStringObj(varNamePtr, "env");
+    Tcl_IncrRefCount(varNamePtr);
+    Tcl_InitObjHashTable(&namesHash);
+    varPtr = TclObjLookupVarEx(interp, varNamePtr, NULL, TCL_GLOBAL_ONLY,
+	    /*msg*/ 0, /*createPart1*/ 0, /*createPart2*/ 0, &arrayPtr);
+    TclFindArrayPtrElements(varPtr, &namesHash);
+
+    /*
+     * Go through the environment array and transfer its values into Tcl. At
+     * the same time, remove those elements we add/update from the hash table
+     * of existing elements, so that after this part processes, that table
+     * will hold just the parts to remove.
+     */
+
+    if (environ[0] != NULL) {
+	int i;

-	TclNewLiteralStringObj(varNamePtr, "env");
-	Tcl_IncrRefCount(varNamePtr);
-	TclArraySet(interp, varNamePtr, NULL);
-	Tcl_DecrRefCount(varNamePtr);
-    } else {
 	Tcl_MutexLock(&envMutex);
 	for (i = 0; environ[i] != NULL; i++) {
+	    Tcl_Obj *obj1, *obj2;
+	    char *p1, *p2;
+
 	    p1 = Tcl_ExternalToUtfDString(NULL, environ[i], -1, &envString);
 	    p2 = strchr(p1, '=');
 	    if (p2 == NULL) {
@@ -119,12 +139,41 @@ TclSetupEnv(
 	    }
 	    p2++;
 	    p2[-1] = '\0';
-	    Tcl_SetVar2(interp, "env", p1, p2, TCL_GLOBAL_ONLY);
+	    obj1 = Tcl_NewStringObj(p1, -1);
+	    obj2 = Tcl_NewStringObj(p2, -1);
 	    Tcl_DStringFree(&envString);
+
+	    Tcl_IncrRefCount(obj1);
+	    Tcl_IncrRefCount(obj2);
+	    Tcl_ObjSetVar2(interp, varNamePtr, obj1, obj2, TCL_GLOBAL_ONLY);
+	    hPtr = Tcl_FindHashEntry(&namesHash, obj1);
+	    if (hPtr != NULL) {
+		Tcl_DeleteHashEntry(hPtr);
+	    }
+	    Tcl_DecrRefCount(obj1);
+	    Tcl_DecrRefCount(obj2);
 	}
 	Tcl_MutexUnlock(&envMutex);
    }

+    /*
+     * Delete those elements that existed in the array but which had no
+     * counterparts in the environment array.
+     */
+
+    for (hPtr=Tcl_FirstHashEntry(&namesHash, &search); hPtr!=NULL;
+	    hPtr=Tcl_NextHashEntry(&search)) {
+	Tcl_Obj *elemName = Tcl_GetHashValue(hPtr);
+
+	TclObjUnsetVar2(interp, varNamePtr, elemName, TCL_GLOBAL_ONLY);
+    }
+    Tcl_DeleteHashTable(&namesHash);
+    Tcl_DecrRefCount(varNamePtr);
+
+    /*
+     * Re-establish the trace.
+     */
+
    Tcl_TraceVar2(interp, "env", NULL,
 	    TCL_GLOBAL_ONLY | TCL_TRACE_WRITES | TCL_TRACE_UNSETS |
 	    TCL_TRACE_READS | TCL_TRACE_ARRAY, EnvTraceProc, NULL);
@@ -1030,14 +1030,8 @@ TclInitSubsystems(void)

 	TclpInitLock();
 	if (subsystemsInitialized == 0) {
-	    /*
-	     * Have to set this bit here to avoid deadlock with the routines
-	     * below us that call into TclInitSubsystems.
-	     */

-	    subsystemsInitialized = 1;
-
-	    /*
+		/*
 	     * Initialize locks used by the memory allocators before anything
 	     * interesting happens so we can use the allocators in the
 	     * implementation of self-initializing locks.
@@ -1061,6 +1055,7 @@ TclInitSubsystems(void)
 	    TclInitEncodingSubsystem();	/* Process wide encoding init. */
 	    TclpSetInterfaces();
 	    TclInitNamespaceSubsystem();/* Register ns obj type (mutexed). */
+	    subsystemsInitialized = 1;
 	}
 	TclpInitUnlock();
    }
@@ -1176,8 +1171,6 @@ Tcl_Finalize(void)

    TclFinalizeEncodingSubsystem();

-    Tcl_SetPanicProc(NULL);
-
    /*
     * Repeat finalization of the thread local storage once more. Although
     * this step is already done by the Tcl_FinalizeThread call above, series
@@ -202,6 +202,9 @@ typedef struct TEBCdata {

 #define PUSH_TAUX_OBJ(objPtr) \
    do {							\
+	if (auxObjList) {					\
+	    objPtr->length += auxObjList->length;		\
+	}							\
 	objPtr->internalRep.ptrAndLongRep.ptr = auxObjList;	\
 	auxObjList = objPtr;					\
    } while (0)
@@ -290,12 +293,14 @@ VarHashCreateVar(
 	    switch (nCleanup) {					\
 	    case 1: goto cleanup1_pushObjResultPtr;		\
 	    case 2: goto cleanup2_pushObjResultPtr;		\
+	    case 0: break;					\
 	    }							\
 	} else {						\
 	    pc += (pcAdjustment);				\
 	    switch (nCleanup) {					\
 	    case 1: goto cleanup1;				\
 	    case 2: goto cleanup2;				\
+	    case 0: break;					\
 	    }							\
 	}							\
    } while (0)
@@ -357,6 +362,8 @@ VarHashCreateVar(

 #define CURR_DEPTH	((ptrdiff_t) (tosPtr - initTosPtr))

+#define STACK_BASE(esPtr) ((esPtr)->stackWords - 1)
+
 /*
 * Macros used to trace instruction execution. The macros TRACE,
 * TRACE_WITH_OBJ, and O2S are only used inside TclNRExecuteByteCode. O2S is
@@ -448,7 +455,7 @@ VarHashCreateVar(
 		    (&((objPtr)->internalRep.doubleValue)), TCL_OK) :	\
    ((((objPtr)->typePtr == NULL) && ((objPtr)->bytes == NULL)) ||	\
    (((objPtr)->bytes != NULL) && ((objPtr)->length == 0)))		\
-	? TCL_ERROR :							\
+	? (*(tPtr) = TCL_NUMBER_LONG),TCL_ERROR :			\
    TclGetNumberFromObj((interp), (objPtr), (ptrPtr), (tPtr)))
 #else /* !TCL_WIDE_INT_IS_LONG */
 #define GetNumberFromObj(interp, objPtr, ptrPtr, tPtr) \
@@ -468,7 +475,7 @@ VarHashCreateVar(
 		    (&((objPtr)->internalRep.doubleValue)), TCL_OK) :	\
    ((((objPtr)->typePtr == NULL) && ((objPtr)->bytes == NULL)) ||	\
    (((objPtr)->bytes != NULL) && ((objPtr)->length == 0)))		\
-	? TCL_ERROR :							\
+	? (*(tPtr) = TCL_NUMBER_LONG),TCL_ERROR :			\
    TclGetNumberFromObj((interp), (objPtr), (ptrPtr), (tPtr)))
 #endif /* TCL_WIDE_INT_IS_LONG */

@@ -718,7 +725,7 @@ static ExceptionRange *	GetExceptRangeForPc(const unsigned char *pc,
 			    int catchOnly, ByteCode *codePtr);
 static const char *	GetSrcInfoForPc(const unsigned char *pc,
 			    ByteCode *codePtr, int *lengthPtr,
-			    const unsigned char **pcBeg);
+			    const unsigned char **pcBeg, int *cmdIdxPtr);
 static Tcl_Obj **	GrowEvaluationStack(ExecEnv *eePtr, int growth,
 			    int move);
 static void		IllegalExprOperandType(Tcl_Interp *interp,
@@ -882,7 +889,7 @@ TclCreateExecEnv(
    esPtr->nextPtr = NULL;
    esPtr->markerPtr = NULL;
    esPtr->endPtr = &esPtr->stackWords[size-1];
-    esPtr->tosPtr = &esPtr->stackWords[-1];
+    esPtr->tosPtr = STACK_BASE(esPtr);

    Tcl_MutexLock(&execMutex);
    if (!execInitialized) {
@@ -1103,8 +1110,8 @@ GrowEvaluationStack(
    if (esPtr->nextPtr) {
 	oldPtr = esPtr;
 	esPtr = oldPtr->nextPtr;
-	currElems = esPtr->endPtr - &esPtr->stackWords[-1];
-	if (esPtr->markerPtr || (esPtr->tosPtr != &esPtr->stackWords[-1])) {
+	currElems = esPtr->endPtr - STACK_BASE(esPtr);
+	if (esPtr->markerPtr || (esPtr->tosPtr != STACK_BASE(esPtr))) {
 	    Tcl_Panic("STACK: Stack after current is in use");
 	}
 	if (esPtr->nextPtr) {
@@ -1116,7 +1123,7 @@ GrowEvaluationStack(
 	DeleteExecStack(esPtr);
 	esPtr = oldPtr;
    } else {
-	currElems = esPtr->endPtr - &esPtr->stackWords[-1];
+	currElems = esPtr->endPtr - STACK_BASE(esPtr);
    }

    /*
@@ -1270,10 +1277,10 @@ TclStackFree(
    while (esPtr->nextPtr) {
 	esPtr = esPtr->nextPtr;
    }
-    esPtr->tosPtr = &esPtr->stackWords[-1];
+    esPtr->tosPtr = STACK_BASE(esPtr);
    while (esPtr->prevPtr) {
 	ExecStack *tmpPtr = esPtr->prevPtr;
-	if (tmpPtr->tosPtr == &tmpPtr->stackWords[-1]) {
+	if (tmpPtr->tosPtr == STACK_BASE(tmpPtr)) {
 	    DeleteExecStack(tmpPtr);
 	} else {
 	    break;
@@ -1423,17 +1430,12 @@ Tcl_NRExprObj(
    Tcl_Obj *resultPtr)
 {
    ByteCode *codePtr;
+    Tcl_InterpState state = Tcl_SaveInterpState(interp, TCL_OK);

-    /* TODO: consider saving whole state? */
-    Tcl_Obj *saveObjPtr = Tcl_GetObjResult(interp);
-
-    Tcl_IncrRefCount(saveObjPtr);
-
+    Tcl_ResetResult(interp);
    codePtr = CompileExprObj(interp, objPtr);

-    /* TODO: Confirm reset not required? */
-    /*Tcl_ResetResult(interp);*/
-    Tcl_NRAddCallback(interp, ExprObjCallback, saveObjPtr, resultPtr,
+    Tcl_NRAddCallback(interp, ExprObjCallback, state, resultPtr,
 	    NULL, NULL);
    return TclNRExecuteByteCode(interp, codePtr);
 }
@@ -1444,14 +1446,15 @@ ExprObjCallback(
    Tcl_Interp *interp,
    int result)
 {
-    Tcl_Obj *saveObjPtr = data[0];
+    Tcl_InterpState state = data[0];
    Tcl_Obj *resultPtr = data[1];

    if (result == TCL_OK) {
 	TclSetDuplicateObj(resultPtr, Tcl_GetObjResult(interp));
-	Tcl_SetObjResult(interp, saveObjPtr);
+	(void) Tcl_RestoreInterpState(interp, state);
+    } else {
+	Tcl_DiscardInterpState(state);
    }
-    TclDecrRefCount(saveObjPtr);
    return result;
 }

@@ -1999,7 +2002,6 @@ TclNRExecuteByteCode(
    bcFramePtr->type = ((codePtr->flags & TCL_BYTECODE_PRECOMPILED)
 	    ? TCL_LOCATION_PREBC : TCL_LOCATION_BC);
    bcFramePtr->level = (iPtr->cmdFramePtr ? iPtr->cmdFramePtr->level+1 : 1);
-    bcFramePtr->numLevels = iPtr->numLevels;
    bcFramePtr->framePtr = iPtr->framePtr;
    bcFramePtr->nextPtr = iPtr->cmdFramePtr;
    bcFramePtr->nline = 0;
@@ -2007,8 +2009,9 @@ TclNRExecuteByteCode(
    bcFramePtr->litarg = NULL;
    bcFramePtr->data.tebc.codePtr = codePtr;
    bcFramePtr->data.tebc.pc = NULL;
-    bcFramePtr->cmd.str.cmd = NULL;
-    bcFramePtr->cmd.str.len = 0;
+    bcFramePtr->cmdObj = NULL;
+    bcFramePtr->cmd = NULL;
+    bcFramePtr->len = 0;

 #ifdef TCL_COMPILE_STATS
    iPtr->stats.numExecutions++;
@@ -2131,6 +2134,11 @@ TEBCresume(
 	    result = TCL_ERROR;
 	}
 	NRE_ASSERT(iPtr->cmdFramePtr == bcFramePtr);
+	if (bcFramePtr->cmdObj) {
+	    Tcl_DecrRefCount(bcFramePtr->cmdObj);
+	    bcFramePtr->cmdObj = NULL;
+	    bcFramePtr->cmd = NULL;
+	}
 	iPtr->cmdFramePtr = bcFramePtr->nextPtr;
 	if (iPtr->flags & INTERP_DEBUG_FRAME) {
 	    TclArgumentBCRelease((Tcl_Interp *) iPtr, bcFramePtr);
@@ -2320,7 +2328,7 @@ TEBCresume(
 	goto instLoadScalar1;
    } else if (inst == INST_PUSH1) {
 	PUSH_OBJECT(codePtr->objArrayPtr[TclGetUInt1AtPtr(pc+1)]);
-	TRACE_WITH_OBJ(("%u => ", TclGetInt1AtPtr(pc+1)), OBJ_AT_TOS);
+	TRACE_WITH_OBJ(("%u => ", TclGetUInt1AtPtr(pc+1)), OBJ_AT_TOS);
 	inst = *(pc += 2);
 	goto peepholeStart;
    } else if (inst == INST_START_CMD) {
@@ -2362,7 +2370,7 @@ TEBCresume(
 	TRACE(("%u %u => ", code, level));
 	result = TclProcessReturn(interp, code, level, OBJ_AT_TOS);
 	if (result == TCL_OK) {
-	    TRACE_APPEND(("continuing to next instruction (result=\"%.30s\")",
+	    TRACE_APPEND(("continuing to next instruction (result=\"%.30s\")\n",
 		    O2S(objResultPtr)));
 	    NEXT_INST_F(9, 1, 0);
 	}
@@ -2371,6 +2379,7 @@ TEBCresume(
 	    iPtr->flags &= ~ERR_ALREADY_LOGGED;
 	}
 	cleanup = 2;
+	TRACE_APPEND(("\n"));
 	goto processExceptionReturn;
    }

@@ -2381,7 +2390,7 @@ TEBCresume(
 	if (result == TCL_OK) {
 	    Tcl_DecrRefCount(OBJ_AT_TOS);
 	    OBJ_AT_TOS = objResultPtr;
-	    TRACE_APPEND(("continuing to next instruction (result=\"%.30s\")",
+	    TRACE_APPEND(("continuing to next instruction (result=\"%.30s\")\n",
 		    O2S(objResultPtr)));
 	    NEXT_INST_F(1, 0, 0);
 	} else if (result == TCL_ERROR) {
@@ -2401,6 +2410,7 @@ TEBCresume(
 	    Tcl_SetObjResult(interp, objResultPtr);
 	}
 	cleanup = 1;
+	TRACE_APPEND(("\n"));
 	goto processExceptionReturn;

    case INST_YIELD: {
@@ -2430,8 +2440,11 @@ TEBCresume(
 	iPtr->cmdFramePtr = bcFramePtr;

 	if (iPtr->flags & INTERP_DEBUG_FRAME) {
-	    TclArgumentBCEnter((Tcl_Interp *) iPtr, objv, objc,
-		    codePtr, bcFramePtr, pc - codePtr->codeStart);
+	    int cmd;
+	    if (GetSrcInfoForPc(pc, codePtr, NULL, NULL, &cmd)) {
+		TclArgumentBCEnter((Tcl_Interp *) iPtr, objv, objc,
+			codePtr, bcFramePtr, cmd, pc - codePtr->codeStart);
+	    }
 	}

 	pc++;
@@ -2715,6 +2728,7 @@ TEBCresume(

 	TclNewObj(objPtr);
 	objPtr->internalRep.ptrAndLongRep.value = CURR_DEPTH;
+	objPtr->length = 0;
 	PUSH_TAUX_OBJ(objPtr);
 	NEXT_INST_F(1, 0, 0);

@@ -2759,22 +2773,27 @@ TEBCresume(
 	 * stack depth, as seen by the compiler.
 	 */

-	length = objc + (codePtr->maxStackDepth - TclGetInt4AtPtr(pc+1));
-	DECACHE_STACK_INFO();
-	moved = GrowEvaluationStack(iPtr->execEnvPtr, length, 1)
-		- (Tcl_Obj **) TD;
-	if (moved) {
-	    /*
-	     * Change the global data to point to the new stack: move the
-	     * TEBCdataPtr TD, recompute the position of every other
-	     * stack-allocated parameter, update the stack pointers.
-	     */
+	auxObjList->length += objc - 1;
+	if ((objc > 1) && (auxObjList->length > 0)) {
+	    length = auxObjList->length /* Total expansion room we need */
+		    + codePtr->maxStackDepth /* Beyond the original max */
+		    - CURR_DEPTH;	/* Relative to where we are */
+	    DECACHE_STACK_INFO();
+	    moved = GrowEvaluationStack(iPtr->execEnvPtr, length, 1)
+		    - (Tcl_Obj **) TD;
+	    if (moved) {
+		/*
+		 * Change the global data to point to the new stack: move the
+		 * TEBCdataPtr TD, recompute the position of every other
+		 * stack-allocated parameter, update the stack pointers.
+		 */

-	    esPtr = iPtr->execEnvPtr->execStackPtr;
-	    TD = (TEBCdata *) (((Tcl_Obj **)TD) + moved);
+		esPtr = iPtr->execEnvPtr->execStackPtr;
+		TD = (TEBCdata *) (((Tcl_Obj **)TD) + moved);

-	    catchTop += moved;
-	    tosPtr += moved;
+		catchTop += moved;
+		tosPtr += moved;
+	    }
 	}

 	/*
@@ -2878,8 +2897,11 @@ TEBCresume(
 	iPtr->cmdFramePtr = bcFramePtr;

 	if (iPtr->flags & INTERP_DEBUG_FRAME) {
-	    TclArgumentBCEnter((Tcl_Interp *) iPtr, objv, objc,
-		    codePtr, bcFramePtr, pc - codePtr->codeStart);
+	    int cmd;
+	    if (GetSrcInfoForPc(pc, codePtr, NULL, NULL, &cmd)) {
+		TclArgumentBCEnter((Tcl_Interp *) iPtr, objv, objc,
+			codePtr, bcFramePtr, cmd, pc - codePtr->codeStart);
+	    }
 	}

 	DECACHE_STACK_INFO();
@@ -2887,7 +2909,7 @@ TEBCresume(
 	pc += pcAdjustment;
 	TEBC_YIELD();
 	return TclNREvalObjv(interp, objc, objv,
-		TCL_EVAL_NOERR, NULL);
+		TCL_EVAL_NOERR | TCL_EVAL_SOURCE_IN_FRAME, NULL);

 #if TCL_SUPPORT_84_BYTECODE
    case INST_CALL_BUILTIN_FUNC1:
@@ -3024,8 +3046,11 @@ TEBCresume(
 	bcFramePtr->data.tebc.pc = (char *) pc;
 	iPtr->cmdFramePtr = bcFramePtr;
 	if (iPtr->flags & INTERP_DEBUG_FRAME) {
-	    TclArgumentBCEnter((Tcl_Interp *) iPtr, objv, objc,
-		    codePtr, bcFramePtr, pc - codePtr->codeStart);
+	    int cmd;
+	    if (GetSrcInfoForPc(pc, codePtr, NULL, NULL, &cmd)) {
+		TclArgumentBCEnter((Tcl_Interp *) iPtr, objv, objc,
+			codePtr, bcFramePtr, cmd, pc - codePtr->codeStart);
+	    }
 	}
 	iPtr->ensembleRewrite.sourceObjs = objv;
 	iPtr->ensembleRewrite.numRemovedObjs = opnd;
@@ -3662,7 +3687,7 @@ TEBCresume(
 	arrayPtr = NULL;
 	part1Ptr = part2Ptr = NULL;
 	cleanup = 0;
-	TRACE(("%u %ld => ", opnd, increment));
+	TRACE(("%u %s => ", opnd, Tcl_GetString(incrPtr)));

    doIncrVar:
 	if (TclIsVarDirectModifyable2(varPtr, arrayPtr)) {
@@ -4227,7 +4252,7 @@ TEBCresume(
 	    } else {
 		TRACE(("%d => %.20s false, new pc %u\n", jmpOffset[0],
 			O2S(valuePtr),
-			(unsigned)(pc + jmpOffset[1] - codePtr->codeStart)));
+			(unsigned)(pc + jmpOffset[0] - codePtr->codeStart)));
 	    }
 	}
 #endif
@@ -4717,7 +4742,7 @@ TEBCresume(
 		if (listPtr->refCount == 1) {
 		    TRACE(("\"%.30s\" %d %d => ", O2S(valuePtr),
 			    TclGetInt4AtPtr(pc+1), TclGetInt4AtPtr(pc+5)));
-		    for (index=toIdx+1 ; index<objc-1 ; index++) {
+		    for (index=toIdx+1; index<objc ; index++) {
 			TclDecrRefCount(objv[index]);
 		    }
 		    listPtr->elemCount = toIdx+1;
@@ -6610,7 +6635,7 @@ TEBCresume(
 	}
 #endif

-	TRACE_APPEND(("\"%.30s\" \"%.30s\" %d",
+	TRACE_APPEND(("\"%.30s\" \"%.30s\" %d\n",
 		O2S(OBJ_UNDER_TOS), O2S(OBJ_AT_TOS), done));
 	objResultPtr = TCONST(done);
 	/* TODO: consider opt like INST_FOREACH_STEP4 */
@@ -6624,7 +6649,7 @@ TEBCresume(
 	while (TclIsVarLink(varPtr)) {
 	    varPtr = varPtr->value.linkPtr;
 	}
-	TRACE(("%u => ", opnd));
+	TRACE(("%u => \n", opnd));
 	if (TclIsVarDirectReadable(varPtr)) {
 	    dictPtr = varPtr->value.objPtr;
 	} else {
@@ -6753,6 +6778,7 @@ TEBCresume(
 		    O2S(dictPtr), O2S(listPtr)), Tcl_GetObjResult(interp));
 	    goto gotError;
 	}
+	TRACE((" => "));
 	TRACE_APPEND(("%.30s\n", O2S(objResultPtr)));
 	NEXT_INST_F(1, 2, 1);

@@ -6959,7 +6985,7 @@ TEBCresume(
 	if ((result == TCL_ERROR) && !(iPtr->flags & ERR_ALREADY_LOGGED)) {
 	    const unsigned char *pcBeg;

-	    bytes = GetSrcInfoForPc(pc, codePtr, &length, &pcBeg);
+	    bytes = GetSrcInfoForPc(pc, codePtr, &length, &pcBeg, NULL);
 	    DECACHE_STACK_INFO();
 	    TclLogCommandInfo(interp, codePtr->source, bytes,
 		    bytes ? length : 0, pcBeg, tosPtr);
@@ -7141,7 +7167,7 @@ TEBCresume(
 	    }

 	    codePtr->flags |= TCL_BYTECODE_RECOMPILE;
-	    bytes = GetSrcInfoForPc(pc, codePtr, &length, NULL);
+	    bytes = GetSrcInfoForPc(pc, codePtr, &length, NULL, NULL);
 	    opnd = TclGetUInt4AtPtr(pc+1);
 	    pc += (opnd-1);
 	    PUSH_OBJECT(Tcl_NewStringObj(bytes, length));
@@ -8634,7 +8660,7 @@ ValidatePcAndStackTop(
    if (checkStack && 
 	    ((stackTop < 0) || (stackTop > stackUpperBound))) {
 	int numChars;
-	const char *cmd = GetSrcInfoForPc(pc, codePtr, &numChars, NULL);
+	const char *cmd = GetSrcInfoForPc(pc, codePtr, &numChars, NULL, NULL);

 	fprintf(stderr, "\nBad stack top %d at pc %u in TclNRExecuteByteCode (min 0, max %i)",
 		stackTop, relativePc, stackUpperBound);
@@ -8718,7 +8744,7 @@ IllegalExprOperandType(
 /*
 *----------------------------------------------------------------------
 *
- * TclGetSrcInfoForPc, GetSrcInfoForPc, TclGetSrcInfoForCmd --
+ * TclGetSrcInfoForPc, GetSrcInfoForPc, TclGetSourceFromFrame --
 *
 *	Given a program counter value, finds the closest command in the
 *	bytecode code unit's CmdLocation array and returns information about
@@ -8739,16 +8765,26 @@ IllegalExprOperandType(
 *----------------------------------------------------------------------
 */

-const char *
-TclGetSrcInfoForCmd(
-    Interp *iPtr,
-    int *lenPtr)
+Tcl_Obj *
+TclGetSourceFromFrame(
+    CmdFrame *cfPtr,
+    int objc,
+    Tcl_Obj *const objv[])
 {
-    CmdFrame *cfPtr = iPtr->cmdFramePtr;
-    ByteCode *codePtr = (ByteCode *) cfPtr->data.tebc.codePtr;
+    if (cfPtr == NULL) {
+        return Tcl_NewListObj(objc, objv);
+    }
+    if (cfPtr->cmdObj == NULL) {
+        if (cfPtr->cmd == NULL) {
+	    ByteCode *codePtr = (ByteCode *) cfPtr->data.tebc.codePtr;

-    return GetSrcInfoForPc((unsigned char *) cfPtr->data.tebc.pc,
-	    codePtr, lenPtr, NULL);
+            cfPtr->cmd = GetSrcInfoForPc((unsigned char *)
+		    cfPtr->data.tebc.pc, codePtr, &cfPtr->len, NULL, NULL);
+        }
+        cfPtr->cmdObj = Tcl_NewStringObj(cfPtr->cmd, cfPtr->len);
+        Tcl_IncrRefCount(cfPtr->cmdObj);
+    }
+    return cfPtr->cmdObj;
 }

 void
@@ -8757,13 +8793,16 @@ TclGetSrcInfoForPc(
 {
    ByteCode *codePtr = (ByteCode *) cfPtr->data.tebc.codePtr;

-    if (cfPtr->cmd.str.cmd == NULL) {
-	cfPtr->cmd.str.cmd = GetSrcInfoForPc(
+    assert(cfPtr->type == TCL_LOCATION_BC);
+
+    if (cfPtr->cmd == NULL) {
+
+	cfPtr->cmd = GetSrcInfoForPc(
 		(unsigned char *) cfPtr->data.tebc.pc, codePtr,
-		&cfPtr->cmd.str.len, NULL);
+		&cfPtr->len, NULL, NULL);
    }

-    if (cfPtr->cmd.str.cmd != NULL) {
+    if (cfPtr->cmd != NULL) {
 	/*
 	 * We now have the command. We can get the srcOffset back and from
 	 * there find the list of word locations for this command.
@@ -8780,7 +8819,7 @@ TclGetSrcInfoForPc(
 	    return;
 	}

-	srcOffset = cfPtr->cmd.str.cmd - codePtr->source;
+	srcOffset = cfPtr->cmd - codePtr->source;
 	eclPtr = Tcl_GetHashValue(hePtr);

 	for (i=0; i < eclPtr->nuloc; i++) {
@@ -8820,9 +8859,12 @@ GetSrcInfoForPc(
    int *lengthPtr,		/* If non-NULL, the location where the length
 				 * of the command's source should be stored.
 				 * If NULL, no length is stored. */
-    const unsigned char **pcBeg)/* If non-NULL, the bytecode location
+    const unsigned char **pcBeg,/* If non-NULL, the bytecode location
 				 * where the current instruction starts.
 				 * If NULL; no pointer is stored. */
+    int *cmdIdxPtr)		/* If non-NULL, the location where the index
+				 * of the command containing the pc should 
+				 * be stored. */
 {
    register int pcOffset = (pc - codePtr->codeStart);
    int numCmds = codePtr->numCommands;
@@ -8832,6 +8874,7 @@ GetSrcInfoForPc(
    int bestDist = INT_MAX;	/* Distance of pc to best cmd's start pc. */
    int bestSrcOffset = -1;	/* Initialized to avoid compiler warning. */
    int bestSrcLength = -1;	/* Initialized to avoid compiler warning. */
+    int bestCmdIdx = -1;

    if ((pcOffset < 0) || (pcOffset >= codePtr->numCodeBytes)) {
 	if (pcBeg != NULL) *pcBeg = NULL;
@@ -8899,6 +8942,7 @@ GetSrcInfoForPc(
 		bestDist = dist;
 		bestSrcOffset = srcOffset;
 		bestSrcLength = srcLen;
+		bestCmdIdx = i;
 	    }
 	}
    }
@@ -8928,6 +8972,10 @@ GetSrcInfoForPc(
 	*lengthPtr = bestSrcLength;
    }

+    if (cmdIdxPtr != NULL) {
+	*cmdIdxPtr = bestCmdIdx;
+    }
+
    return (codePtr->source + bestSrcOffset);
 }

@@ -139,7 +139,7 @@ int
 TclCreateSocketAddress(
    Tcl_Interp *interp,                 /* Interpreter for querying
 					 * the desired socket family */
-    struct addrinfo **addrlist,		/* Socket address list */
+    void **addrlist,		/* Socket address list */
    const char *host,			/* Host. NULL implies INADDR_ANY */
    int port,				/* Port number */
    int willBind,			/* Is this an address to bind() to or
@@ -213,7 +213,7 @@ TclCreateSocketAddress(
 	hints.ai_flags |= AI_PASSIVE;
    } 

-    result = getaddrinfo(native, portstring, &hints, addrlist);
+    result = getaddrinfo(native, portstring, &hints, (struct addrinfo **) addrlist);

    if (host != NULL) {
 	Tcl_DStringFree(&ds);
@@ -30,8 +30,7 @@
 * here, so that system-dependent personalizations for the include files only
 * have to be made in once place. This results in a few extra includes, but
 * greater modularity. The order of the three groups of #includes is
- * important. For example, stdio.h is needed by tcl.h, and the _ANSI_ARGS_
- * declaration in tcl.h is needed by stdlib.h in some configurations.
+ * important. For example, stdio.h is needed by tcl.h.
 */

 #include "tclPort.h"
@@ -119,6 +118,10 @@ typedef int ptrdiff_t;
 #   endif
 #endif

+#if defined(_WIN32) && defined(_MSC_VER)
+#   define vsnprintf _vsnprintf
+#endif
+
 /*
 * The following procedures allow namespaces to be customized to support
 * special name resolution rules for commands/variables.
@@ -1172,29 +1175,27 @@ typedef struct CmdFrame {
     *
     * EXECUTION CONTEXTS and usage of CmdFrame
     *
-     * Field	  TEBC		  EvalEx	  EvalObjEx
-     * =======	  ====		  ======	  =========
-     * level	  yes		  yes		  yes
-     * type	  BC/PREBC	  SRC/EVAL	  EVAL_LIST
-     * line0	  yes		  yes		  yes
-     * framePtr	  yes		  yes		  yes
-     * =======	  ====		  ======	  =========
+     * Field	  TEBC		  EvalEx
+     * =======	  ====		  ======
+     * level	  yes		  yes	
+     * type	  BC/PREBC	  SRC/EVAL
+     * line0	  yes		  yes	
+     * framePtr	  yes		  yes	
+     * =======	  ====		  ======
     *
-     * =======	  ====		  ======	  ========= union data
-     * line1	  -		  yes		  -
-     * line3	  -		  yes		  -
-     * path	  -		  yes		  -
-     * -------	  ----		  ------	  ---------
-     * codePtr	  yes		  -		  -
-     * pc	  yes		  -		  -
-     * =======	  ====		  ======	  =========
+     * =======	  ====		  ========= union data
+     * line1	  -		  yes	
+     * line3	  -		  yes	
+     * path	  -		  yes	
+     * -------	  ----		  ------
+     * codePtr	  yes		  -	
+     * pc	  yes		  -	
+     * =======	  ====		  ======
     *
-     * =======	  ====		  ======	  ========= | union cmd
-     * listPtr	  -		  -		  yes	    |
-     * -------	  ----		  ------	  --------- |
-     * cmd	  yes		  yes		  -	    |
-     * cmdlen	  yes		  yes		  -	    |
-     * -------	  ----		  ------	  --------- |
+     * =======	  ====		  ========= union cmd
+     * str.cmd	  yes		  yes	
+     * str.len	  yes		  yes	
+     * -------	  ----		  ------	
     */

    union {
@@ -1207,15 +1208,9 @@ typedef struct CmdFrame {
 	    const char *pc;	/* ... and instruction pointer. */
 	} tebc;
    } data;
-    union {
-	struct {
-	    const char *cmd;	/* The executed command, if possible... */
-	    int len;		/* ... and its length. */
-	} str;
-	Tcl_Obj *listPtr;	/* Tcl_EvalObjEx, cmd list. */
-    } cmd;
-    int numLevels;		/* Value of interp's numLevels when the frame
-				 * was pushed. */
+    Tcl_Obj *cmdObj;
+    const char *cmd;		/* The executed command, if possible... */
+    int len;			/* ... and its length. */
    const struct CFWordBC *litarg;
 				/* Link to set of literal arguments which have
 				 * ben pushed on the lineLABCPtr stack by
@@ -1279,8 +1274,6 @@ typedef struct ContLineLoc {
 * location data referenced via the 'baseLocPtr'.
 *
 * TCL_LOCATION_EVAL	  : Frame is for a script evaluated by EvalEx.
- * TCL_LOCATION_EVAL_LIST : Frame is for a script evaluated by the list
- *			    optimization path of EvalObjEx.
 * TCL_LOCATION_BC	  : Frame is for bytecode.
 * TCL_LOCATION_PREBC	  : Frame is for precompiled bytecode.
 * TCL_LOCATION_SOURCE	  : Frame is for a script evaluated by EvalEx, from a
@@ -1292,8 +1285,6 @@ typedef struct ContLineLoc {
 */

 #define TCL_LOCATION_EVAL	(0) /* Location in a dynamic eval script. */
-#define TCL_LOCATION_EVAL_LIST	(1) /* Location in a dynamic eval script,
-				     * list-path. */
 #define TCL_LOCATION_BC		(2) /* Location in byte code. */
 #define TCL_LOCATION_PREBC	(3) /* Location in precompiled byte code, no
 				     * location. */
@@ -2207,9 +2198,10 @@ typedef struct Interp {
 *			other than these should be turned into errors.
 */

-#define TCL_ALLOW_EXCEPTIONS	4
-#define TCL_EVAL_FILE		2
-#define TCL_EVAL_CTX		8
+#define TCL_ALLOW_EXCEPTIONS		0x04
+#define TCL_EVAL_FILE			0x02
+#define TCL_EVAL_SOURCE_IN_FRAME	0x10
+#define TCL_EVAL_NORESOLVE		0x20

 /*
 * Flag bits for Interp structures:
@@ -2734,6 +2726,7 @@ MODULE_SCOPE Tcl_ObjCmdProc TclNRCoroutineObjCmd;
 MODULE_SCOPE Tcl_ObjCmdProc TclNRYieldObjCmd;
 MODULE_SCOPE Tcl_ObjCmdProc TclNRYieldmObjCmd;
 MODULE_SCOPE Tcl_ObjCmdProc TclNRYieldToObjCmd;
+MODULE_SCOPE Tcl_ObjCmdProc TclNRInvoke;

 MODULE_SCOPE void  TclSetTailcall(Tcl_Interp *interp, Tcl_Obj *tailcallPtr);
 MODULE_SCOPE void  TclPushTailcallPoint(Tcl_Interp *interp);
@@ -2825,7 +2818,7 @@ MODULE_SCOPE void	TclArgumentRelease(Tcl_Interp *interp,
 			    Tcl_Obj *objv[], int objc);
 MODULE_SCOPE void	TclArgumentBCEnter(Tcl_Interp *interp,
 			    Tcl_Obj *objv[], int objc,
-			    void *codePtr, CmdFrame *cfPtr, int pc);
+			    void *codePtr, CmdFrame *cfPtr, int cmd, int pc);
 MODULE_SCOPE void	TclArgumentBCRelease(Tcl_Interp *interp,
 			    CmdFrame *cfPtr);
 MODULE_SCOPE void	TclArgumentGet(Tcl_Interp *interp, Tcl_Obj *obj,
@@ -2916,7 +2909,8 @@ MODULE_SCOPE int	TclGetOpenModeEx(Tcl_Interp *interp,
 			    const char *modeString, int *seekFlagPtr,
 			    int *binaryPtr);
 MODULE_SCOPE Tcl_Obj *	TclGetProcessGlobalValue(ProcessGlobalValue *pgvPtr);
-MODULE_SCOPE const char *TclGetSrcInfoForCmd(Interp *iPtr, int *lenPtr);
+MODULE_SCOPE Tcl_Obj *	TclGetSourceFromFrame(CmdFrame *cfPtr, int objc,
+			    Tcl_Obj *const objv[]);
 MODULE_SCOPE int	TclGlob(Tcl_Interp *interp, char *pattern,
 			    Tcl_Obj *unquotedPrefix, int globFlags,
 			    Tcl_GlobTypeData *types);
@@ -3007,9 +3001,8 @@ MODULE_SCOPE void	TclpFinalizeMutex(Tcl_Mutex *mutexPtr);
 MODULE_SCOPE void	TclpFinalizePipes(void);
 MODULE_SCOPE void	TclpFinalizeSockets(void);
 MODULE_SCOPE int	TclCreateSocketAddress(Tcl_Interp *interp,
-			    struct addrinfo **addrlist,
-			    const char *host, int port, int willBind,
-			    const char **errorMsgPtr);
+			    void **addrlist, const char *host, int port,
+			    int willBind, const char **errorMsgPtr);
 MODULE_SCOPE int	TclpThreadCreate(Tcl_ThreadId *idPtr,
 			    Tcl_ThreadCreateProc *proc, ClientData clientData,
 			    int stackSize, int flags);
@@ -3864,6 +3857,8 @@ MODULE_SCOPE int	TclPtrUnsetVar(Tcl_Interp *interp, Var *varPtr,
 			    Tcl_Obj *part2Ptr, const int flags,
 			    int index);
 MODULE_SCOPE void	TclInvalidateNsPath(Namespace *nsPtr);
+MODULE_SCOPE void	TclFindArrayPtrElements(Var *arrayPtr,
+			    Tcl_HashTable *tablePtr);

 /*
 * The new extended interface to the variable traces.
@@ -545,6 +545,8 @@ extern const TclIntPlatStubs *tclIntPlatStubsPtr;
 #undef TclpGmtime_unix
 #undef TclWinConvertWSAError
 #define TclWinConvertWSAError TclWinConvertError
+#undef TclpInetNtoa
+#define TclpInetNtoa inet_ntoa

 #if defined(__WIN32__) || defined(__CYGWIN__)
 #   undef TclWinNToHS
@@ -279,6 +279,12 @@ static void		DeleteScriptLimitCallback(ClientData clientData);
 static void		RunLimitHandlers(LimitHandler *handlerPtr,
 			    Tcl_Interp *interp);
 static void		TimeLimitCallback(ClientData clientData);
+
+/* NRE enabling */
+static Tcl_NRPostProc	NRPostInvokeHidden;
+static Tcl_ObjCmdProc	NRInterpCmd;
+static Tcl_ObjCmdProc	NRSlaveCmd;
+

 /*
 *----------------------------------------------------------------------
@@ -481,7 +487,8 @@ TclInterpInit(
    slavePtr->interpCmd		= NULL;
    Tcl_InitHashTable(&slavePtr->aliasTable, TCL_STRING_KEYS);

-    Tcl_CreateObjCommand(interp, "interp", Tcl_InterpObjCmd, NULL, NULL);
+    Tcl_NRCreateCommand(interp, "interp", Tcl_InterpObjCmd, NRInterpCmd,
+	    NULL, NULL);

    Tcl_CallWhenDeleted(interp, InterpInfoDeleteProc, NULL);
    return TCL_OK;
@@ -589,6 +596,16 @@ Tcl_InterpObjCmd(
    Tcl_Interp *interp,			/* Current interpreter. */
    int objc,				/* Number of arguments. */
    Tcl_Obj *const objv[])		/* Argument objects. */
+{
+    return Tcl_NRCallObjProc(interp, NRInterpCmd, clientData, objc, objv);
+}
+
+static int
+NRInterpCmd(
+    ClientData clientData,		/* Unused. */
+    Tcl_Interp *interp,			/* Current interpreter. */
+    int objc,				/* Number of arguments. */
+    Tcl_Obj *const objv[])		/* Argument objects. */
 {
    Tcl_Interp *slaveInterp;
    int index;
@@ -2372,8 +2389,8 @@ SlaveCreate(
    slavePtr->masterInterp = masterInterp;
    slavePtr->slaveEntryPtr = hPtr;
    slavePtr->slaveInterp = slaveInterp;
-    slavePtr->interpCmd = Tcl_CreateObjCommand(masterInterp, path,
-	    SlaveObjCmd, slaveInterp, SlaveObjCmdDeleteProc);
+    slavePtr->interpCmd = Tcl_NRCreateCommand(masterInterp, path,
+	    SlaveObjCmd, NRSlaveCmd, slaveInterp, SlaveObjCmdDeleteProc);
    Tcl_InitHashTable(&slavePtr->aliasTable, TCL_STRING_KEYS);
    Tcl_SetHashValue(hPtr, slavePtr);
    Tcl_SetVar(slaveInterp, "tcl_interactive", "0", TCL_GLOBAL_ONLY);
@@ -2461,6 +2478,16 @@ SlaveObjCmd(
    Tcl_Interp *interp,		/* Current interpreter. */
    int objc,			/* Number of arguments. */
    Tcl_Obj *const objv[])	/* Argument objects. */
+{
+    return Tcl_NRCallObjProc(interp, NRSlaveCmd, clientData, objc, objv);
+}
+
+static int
+NRSlaveCmd(
+    ClientData clientData,	/* Slave interpreter. */
+    Tcl_Interp *interp,		/* Current interpreter. */
+    int objc,			/* Number of arguments. */
+    Tcl_Obj *const objv[])	/* Argument objects. */
 {
    Tcl_Interp *slaveInterp = clientData;
    int index;
@@ -3052,7 +3079,11 @@ SlaveInvokeHidden(
    Tcl_AllowExceptions(slaveInterp);

    if (namespaceName == NULL) {
-	result = TclObjInvoke(slaveInterp, objc, objv, TCL_INVOKE_HIDDEN);
+	NRE_callback *rootPtr = TOP_CB(slaveInterp);
+
+	Tcl_NRAddCallback(interp, NRPostInvokeHidden, slaveInterp,
+		rootPtr, NULL, NULL);
+	return TclNRInvoke(NULL, slaveInterp, objc, objv);
    } else {
 	Namespace *nsPtr, *dummy1, *dummy2;
 	const char *tail;
@@ -3071,6 +3102,23 @@ SlaveInvokeHidden(
    Tcl_Release(slaveInterp);
    return result;
 }
+
+static int
+NRPostInvokeHidden(
+    ClientData data[],
+    Tcl_Interp *interp,
+    int result)
+{
+    Tcl_Interp *slaveInterp = (Tcl_Interp *)data[0];
+    NRE_callback *rootPtr = (NRE_callback *)data[1];
+
+    if (interp != slaveInterp) {
+	result = TclNRRunCallbacks(slaveInterp, result, rootPtr);
+	Tcl_TransferResult(slaveInterp, result, interp);
+    }
+    Tcl_Release(slaveInterp);
+    return result;
+}

 /*
 *----------------------------------------------------------------------
@@ -313,6 +313,9 @@ Tcl_MainEx(
    Tcl_Channel chan;
    InteractiveState is;

+    TclpSetInitialEncodings();
+    TclpFindExecutable((const char *)argv[0]);
+
    Tcl_InitMemory(interp);

    is.interp = interp;
@@ -640,7 +643,6 @@ Tcl_Main(
 				 * function to call after most initialization
 				 * but before starting to execute commands. */
 {
-    Tcl_FindExecutable(argv[0]);
    Tcl_MainEx(argc, argv, appInitProc, Tcl_CreateInterp());
 }
 #endif /* TCL_MAJOR_VERSION == 8 && !UNICODE */
@@ -673,6 +673,10 @@ Tcl_CreateNamespace(
    Tcl_DString *namePtr, *buffPtr;
    int newEntry, nameLen;
    ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
+    const char *nameStr;
+    Tcl_DString tmpBuffer;
+
+    Tcl_DStringInit(&tmpBuffer);

    /*
     * If there is no active namespace, the interpreter is being initialized.
@@ -686,49 +690,78 @@ Tcl_CreateNamespace(

 	parentPtr = NULL;
 	simpleName = "";
-    } else if (*name == '\0') {
+	goto doCreate;
+    }
+
+    /*
+     * Ensure that there are no trailing colons as that causes chaos when a
+     * deleteProc is specified. [Bug d614d63989]
+     */
+
+    if (deleteProc != NULL) {
+	nameStr = name + strlen(name) - 2;
+	if (nameStr >= name && nameStr[1] == ':' && nameStr[0] == ':') {
+	    Tcl_DStringAppend(&tmpBuffer, name, -1);
+	    while ((nameLen = Tcl_DStringLength(&tmpBuffer)) > 0
+		    && Tcl_DStringValue(&tmpBuffer)[nameLen-1] == ':') {
+		Tcl_DStringSetLength(&tmpBuffer, nameLen-1);
+	    }
+	    name = Tcl_DStringValue(&tmpBuffer);
+	}
+    }
+
+    /*
+     * If we've ended up with an empty string now, we're attempting to create
+     * the global namespace despite the global namespace existing. That's
+     * naughty!
+     */
+
+    if (*name == '\0') {
 	Tcl_SetObjResult(interp, Tcl_NewStringObj("can't create namespace"
                " \"\": only global namespace can have empty name", -1));
 	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "NAMESPACE",
 		"CREATEGLOBAL", NULL);
+	Tcl_DStringFree(&tmpBuffer);
 	return NULL;
-    } else {
-	/*
-	 * Find the parent for the new namespace.
-	 */
+    }

-	TclGetNamespaceForQualName(interp, name, NULL, TCL_CREATE_NS_IF_UNKNOWN,
-		&parentPtr, &dummy1Ptr, &dummy2Ptr, &simpleName);
+    /*
+     * Find the parent for the new namespace.
+     */

-	/*
-	 * If the unqualified name at the end is empty, there were trailing
-	 * "::"s after the namespace's name which we ignore. The new namespace
-	 * was already (recursively) created and is pointed to by parentPtr.
-	 */
+    TclGetNamespaceForQualName(interp, name, NULL, TCL_CREATE_NS_IF_UNKNOWN,
+	    &parentPtr, &dummy1Ptr, &dummy2Ptr, &simpleName);

-	if (*simpleName == '\0') {
-	    return (Tcl_Namespace *) parentPtr;
-	}
+    /*
+     * If the unqualified name at the end is empty, there were trailing "::"s
+     * after the namespace's name which we ignore. The new namespace was
+     * already (recursively) created and is pointed to by parentPtr.
+     */

-	/*
-	 * Check for a bad namespace name and make sure that the name does not
-	 * already exist in the parent namespace.
-	 */
+    if (*simpleName == '\0') {
+	Tcl_DStringFree(&tmpBuffer);
+	return (Tcl_Namespace *) parentPtr;
+    }

-	if (
+    /*
+     * Check for a bad namespace name and make sure that the name does not
+     * already exist in the parent namespace.
+     */
+
+    if (
 #ifndef BREAK_NAMESPACE_COMPAT
-	    Tcl_FindHashEntry(&parentPtr->childTable, simpleName) != NULL
+	Tcl_FindHashEntry(&parentPtr->childTable, simpleName) != NULL
 #else
-	    parentPtr->childTablePtr != NULL &&
-	    Tcl_FindHashEntry(parentPtr->childTablePtr, simpleName) != NULL
+	parentPtr->childTablePtr != NULL &&
+	Tcl_FindHashEntry(parentPtr->childTablePtr, simpleName) != NULL
 #endif
-	) {
-	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
-                    "can't create namespace \"%s\": already exists", name));
-	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "NAMESPACE",
-		    "CREATEEXISTING", NULL);
-	    return NULL;
-	}
+    ) {
+	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		"can't create namespace \"%s\": already exists", name));
+	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "NAMESPACE",
+		"CREATEEXISTING", NULL);
+	Tcl_DStringFree(&tmpBuffer);
+	return NULL;
    }

    /*
@@ -736,6 +769,7 @@ Tcl_CreateNamespace(
     * of namespaces created.
     */

+  doCreate:
    nsPtr = ckalloc(sizeof(Namespace));
    nameLen = strlen(simpleName) + 1;
    nsPtr->name = ckalloc(nameLen);
@@ -831,6 +865,7 @@ Tcl_CreateNamespace(

    Tcl_DStringFree(&buffer1);
    Tcl_DStringFree(&buffer2);
+    Tcl_DStringFree(&tmpBuffer);

    /*
     * If compilation of commands originating from the parent NS is
@@ -1942,7 +1977,7 @@ InvokeImportedNRCmd(
    Command *realCmdPtr = dataPtr->realCmdPtr;

    TclSkipTailcall(interp);
-    return Tcl_NRCmdSwap(interp, (Tcl_Command) realCmdPtr, objc, objv, 0);
+    return TclNREvalObjv(interp, objc, objv, TCL_EVAL_NOERR, realCmdPtr);
 }

 static int
@@ -1,12 +1,24 @@
+# tclOO.decls --
+#
+#	This file contains the declarations for all supported public functions
+#	that are exported by the TclOO package that is embedded within the Tcl
+#	library via the stubs table.  This file is used to generate the
+#	tclOODecls.h, tclOOIntDecls.h, tclOOStubInit.c, and tclOOStubLib.c
+#	files.
+#
+# Copyright (c) 2008-2013 by Donal K. Fellows.
+#
+# See the file "license.terms" for information on usage and redistribution of
+# this file, and for a DISCLAIMER OF ALL WARRANTIES.
+
 library tclOO

 ######################################################################
-# public API
+# Public API, exposed for general users of TclOO.
 #

 interface tclOO
 hooks tclOOInt
-scspec TCLOOAPI

 declare 0 {
    Tcl_Object Tcl_CopyObjectInstance(Tcl_Interp *interp,
@@ -116,7 +128,9 @@ declare 28 {
 }

 ######################################################################
-# private API, exposed to support advanced OO systems that plug in on top
+# Private API, exposed to support advanced OO systems that plug in on top of
+# TclOO; not intended for general use and does not have any commitment to
+# long-term support.
 #

 interface tclOOInt
@@ -12,21 +12,6 @@

 #ifndef TCLOO_H_INCLUDED
 #define TCLOO_H_INCLUDED
-#include "tcl.h"
-
-#ifndef TCLOOAPI
-#   if defined(BUILD_tcl) || defined(BUILD_TclOO)
-#	define TCLOOAPI MODULE_SCOPE
-#   else
-#	define TCLOOAPI extern
-#	undef USE_TCLOO_STUBS
-#	define USE_TCLOO_STUBS 1
-#   endif
-#endif
-
-extern const char *TclOOInitializeStubs(
-	Tcl_Interp *, const char *version);
-#define Tcl_OOInitStubs(interp) TclOOInitializeStubs((interp), TCLOO_VERSION)

 /*
 * Be careful when it comes to versioning; need to make sure that the
@@ -39,9 +24,28 @@ extern const char *TclOOInitializeStubs(
 * win/tclooConfig.sh
 */

-#define TCLOO_VERSION "1.0"
+#define TCLOO_VERSION "1.0.1"
 #define TCLOO_PATCHLEVEL TCLOO_VERSION

+#include "tcl.h"
+
+/*
+ * For C++ compilers, use extern "C"
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if (defined(USE_TCLOO_STUBS) || defined(USE_TCL_STUBS))
+extern const char *TclOOInitializeStubs(
+	Tcl_Interp *, const char *version);
+#define Tcl_OOInitStubs(interp) \
+    TclOOInitializeStubs((interp), TCLOO_VERSION)
+#else
+#define Tcl_OOInitStubs(interp) (TCLOO_PATCHLEVEL)
+#endif
+
 /*
 * These are opaque types.
 */
@@ -130,6 +134,9 @@ typedef struct {

 #include "tclOODecls.h"

+#ifdef __cplusplus
+}
+#endif
 #endif

 /*
@@ -4,7 +4,7 @@
 *	This file contains implementations of the "simple" commands and
 *	methods from the object-system core.
 *
- * Copyright (c) 2005-2012 by Donal K. Fellows
+ * Copyright (c) 2005-2013 by Donal K. Fellows
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
@@ -88,7 +88,7 @@ TclOO_Class_Constructor(
    Tcl_Obj *const *objv)
 {
    Object *oPtr = (Object *) Tcl_ObjectContextObject(context);
-    Tcl_Obj *invoke[3];
+    Tcl_Obj **invoke;

    if (objc-1 > Tcl_ObjectContextSkippedArgs(context)) {
 	Tcl_WrongNumArgs(interp, Tcl_ObjectContextSkippedArgs(context), objv,
@@ -102,6 +102,7 @@ TclOO_Class_Constructor(
     * Delegate to [oo::define] to do the work.
     */

+    invoke = ckalloc(3 * sizeof(Tcl_Obj *));
    invoke[0] = oPtr->fPtr->defineName;
    invoke[1] = TclOOObjectName(interp, oPtr);
    invoke[2] = objv[objc-1];
@@ -115,7 +116,7 @@ TclOO_Class_Constructor(
    Tcl_IncrRefCount(invoke[1]);
    Tcl_IncrRefCount(invoke[2]);
    TclNRAddCallback(interp, DecrRefsPostClassConstructor,
-	    invoke[0], invoke[1], invoke[2], NULL);
+	    invoke, NULL, NULL, NULL);

    /*
     * Tricky point: do not want the extra reported level in the Tcl stack
@@ -131,9 +132,12 @@ DecrRefsPostClassConstructor(
    Tcl_Interp *interp,
    int result)
 {
-    TclDecrRefCount((Tcl_Obj *) data[0]);
-    TclDecrRefCount((Tcl_Obj *) data[1]);
-    TclDecrRefCount((Tcl_Obj *) data[2]);
+    Tcl_Obj **invoke = data[0];
+
+    TclDecrRefCount(invoke[0]);
+    TclDecrRefCount(invoke[1]);
+    TclDecrRefCount(invoke[2]);
+    ckfree(invoke);
    return result;
 }

@@ -5,6 +5,17 @@
 #ifndef _TCLOODECLS
 #define _TCLOODECLS

+#undef TCL_STORAGE_CLASS
+#ifdef BUILD_tcl
+#   define TCL_STORAGE_CLASS DLLEXPORT
+#else
+#   ifdef USE_TCL_STUBS
+#      define TCL_STORAGE_CLASS
+#   else
+#      define TCL_STORAGE_CLASS DLLIMPORT
+#   endif
+#endif
+
 /* !BEGIN!: Do not edit below this line. */

 /*
@@ -12,92 +23,92 @@
 */

 /* 0 */
-TCLOOAPI Tcl_Object	Tcl_CopyObjectInstance(Tcl_Interp *interp,
+EXTERN Tcl_Object	Tcl_CopyObjectInstance(Tcl_Interp *interp,
 				Tcl_Object sourceObject,
 				const char *targetName,
 				const char *targetNamespaceName);
 /* 1 */
-TCLOOAPI Tcl_Object	Tcl_GetClassAsObject(Tcl_Class clazz);
+EXTERN Tcl_Object	Tcl_GetClassAsObject(Tcl_Class clazz);
 /* 2 */
-TCLOOAPI Tcl_Class	Tcl_GetObjectAsClass(Tcl_Object object);
+EXTERN Tcl_Class	Tcl_GetObjectAsClass(Tcl_Object object);
 /* 3 */
-TCLOOAPI Tcl_Command	Tcl_GetObjectCommand(Tcl_Object object);
+EXTERN Tcl_Command	Tcl_GetObjectCommand(Tcl_Object object);
 /* 4 */
-TCLOOAPI Tcl_Object	Tcl_GetObjectFromObj(Tcl_Interp *interp,
+EXTERN Tcl_Object	Tcl_GetObjectFromObj(Tcl_Interp *interp,
 				Tcl_Obj *objPtr);
 /* 5 */
-TCLOOAPI Tcl_Namespace * Tcl_GetObjectNamespace(Tcl_Object object);
+EXTERN Tcl_Namespace *	Tcl_GetObjectNamespace(Tcl_Object object);
 /* 6 */
-TCLOOAPI Tcl_Class	Tcl_MethodDeclarerClass(Tcl_Method method);
+EXTERN Tcl_Class	Tcl_MethodDeclarerClass(Tcl_Method method);
 /* 7 */
-TCLOOAPI Tcl_Object	Tcl_MethodDeclarerObject(Tcl_Method method);
+EXTERN Tcl_Object	Tcl_MethodDeclarerObject(Tcl_Method method);
 /* 8 */
-TCLOOAPI int		Tcl_MethodIsPublic(Tcl_Method method);
+EXTERN int		Tcl_MethodIsPublic(Tcl_Method method);
 /* 9 */
-TCLOOAPI int		Tcl_MethodIsType(Tcl_Method method,
+EXTERN int		Tcl_MethodIsType(Tcl_Method method,
 				const Tcl_MethodType *typePtr,
 				ClientData *clientDataPtr);
 /* 10 */
-TCLOOAPI Tcl_Obj *	Tcl_MethodName(Tcl_Method method);
+EXTERN Tcl_Obj *	Tcl_MethodName(Tcl_Method method);
 /* 11 */
-TCLOOAPI Tcl_Method	Tcl_NewInstanceMethod(Tcl_Interp *interp,
+EXTERN Tcl_Method	Tcl_NewInstanceMethod(Tcl_Interp *interp,
 				Tcl_Object object, Tcl_Obj *nameObj,
 				int isPublic, const Tcl_MethodType *typePtr,
 				ClientData clientData);
 /* 12 */
-TCLOOAPI Tcl_Method	Tcl_NewMethod(Tcl_Interp *interp, Tcl_Class cls,
+EXTERN Tcl_Method	Tcl_NewMethod(Tcl_Interp *interp, Tcl_Class cls,
 				Tcl_Obj *nameObj, int isPublic,
 				const Tcl_MethodType *typePtr,
 				ClientData clientData);
 /* 13 */
-TCLOOAPI Tcl_Object	Tcl_NewObjectInstance(Tcl_Interp *interp,
+EXTERN Tcl_Object	Tcl_NewObjectInstance(Tcl_Interp *interp,
 				Tcl_Class cls, const char *nameStr,
 				const char *nsNameStr, int objc,
 				Tcl_Obj *const *objv, int skip);
 /* 14 */
-TCLOOAPI int		Tcl_ObjectDeleted(Tcl_Object object);
+EXTERN int		Tcl_ObjectDeleted(Tcl_Object object);
 /* 15 */
-TCLOOAPI int		Tcl_ObjectContextIsFiltering(
+EXTERN int		Tcl_ObjectContextIsFiltering(
 				Tcl_ObjectContext context);
 /* 16 */
-TCLOOAPI Tcl_Method	Tcl_ObjectContextMethod(Tcl_ObjectContext context);
+EXTERN Tcl_Method	Tcl_ObjectContextMethod(Tcl_ObjectContext context);
 /* 17 */
-TCLOOAPI Tcl_Object	Tcl_ObjectContextObject(Tcl_ObjectContext context);
+EXTERN Tcl_Object	Tcl_ObjectContextObject(Tcl_ObjectContext context);
 /* 18 */
-TCLOOAPI int		Tcl_ObjectContextSkippedArgs(
+EXTERN int		Tcl_ObjectContextSkippedArgs(
 				Tcl_ObjectContext context);
 /* 19 */
-TCLOOAPI ClientData	Tcl_ClassGetMetadata(Tcl_Class clazz,
+EXTERN ClientData	Tcl_ClassGetMetadata(Tcl_Class clazz,
 				const Tcl_ObjectMetadataType *typePtr);
 /* 20 */
-TCLOOAPI void		Tcl_ClassSetMetadata(Tcl_Class clazz,
+EXTERN void		Tcl_ClassSetMetadata(Tcl_Class clazz,
 				const Tcl_ObjectMetadataType *typePtr,
 				ClientData metadata);
 /* 21 */
-TCLOOAPI ClientData	Tcl_ObjectGetMetadata(Tcl_Object object,
+EXTERN ClientData	Tcl_ObjectGetMetadata(Tcl_Object object,
 				const Tcl_ObjectMetadataType *typePtr);
 /* 22 */
-TCLOOAPI void		Tcl_ObjectSetMetadata(Tcl_Object object,
+EXTERN void		Tcl_ObjectSetMetadata(Tcl_Object object,
 				const Tcl_ObjectMetadataType *typePtr,
 				ClientData metadata);
 /* 23 */
-TCLOOAPI int		Tcl_ObjectContextInvokeNext(Tcl_Interp *interp,
+EXTERN int		Tcl_ObjectContextInvokeNext(Tcl_Interp *interp,
 				Tcl_ObjectContext context, int objc,
 				Tcl_Obj *const *objv, int skip);
 /* 24 */
-TCLOOAPI Tcl_ObjectMapMethodNameProc * Tcl_ObjectGetMethodNameMapper(
+EXTERN Tcl_ObjectMapMethodNameProc * Tcl_ObjectGetMethodNameMapper(
 				Tcl_Object object);
 /* 25 */
-TCLOOAPI void		Tcl_ObjectSetMethodNameMapper(Tcl_Object object,
+EXTERN void		Tcl_ObjectSetMethodNameMapper(Tcl_Object object,
 				Tcl_ObjectMapMethodNameProc *mapMethodNameProc);
 /* 26 */
-TCLOOAPI void		Tcl_ClassSetConstructor(Tcl_Interp *interp,
+EXTERN void		Tcl_ClassSetConstructor(Tcl_Interp *interp,
 				Tcl_Class clazz, Tcl_Method method);
 /* 27 */
-TCLOOAPI void		Tcl_ClassSetDestructor(Tcl_Interp *interp,
+EXTERN void		Tcl_ClassSetDestructor(Tcl_Interp *interp,
 				Tcl_Class clazz, Tcl_Method method);
 /* 28 */
-TCLOOAPI Tcl_Obj *	Tcl_GetObjectName(Tcl_Interp *interp,
+EXTERN Tcl_Obj *	Tcl_GetObjectName(Tcl_Interp *interp,
 				Tcl_Object object);

 typedef struct {
@@ -215,4 +226,7 @@ extern const TclOOStubs *tclOOStubsPtr;
 #endif /* defined(USE_TCLOO_STUBS) */

 /* !END!: Do not edit above this line. */
+
+#undef TCL_STORAGE_CLASS
+#define TCL_STORAGE_CLASS DLLIMPORT
 #endif /* _TCLOODECLS */
@@ -4,7 +4,7 @@
 *	This file contains the implementation of the ::oo::define command,
 *	part of the object-system core (NB: not Tcl_Obj, but ::oo).
 *
- * Copyright (c) 2006-2012 by Donal K. Fellows
+ * Copyright (c) 2006-2013 by Donal K. Fellows
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
@@ -2206,29 +2206,42 @@ ClassSuperSet(

    /*
     * Parse the arguments to get the class to use as superclasses.
+     *
+     * Note that zero classes is special, as it is equivalent to just the
+     * class of objects. [Bug 9d61624b3d]
     */

-    for (i=0 ; i<superc ; i++) {
-	superclasses[i] = GetClassInOuterContext(interp, superv[i],
-		"only a class can be a superclass");
-	if (superclasses[i] == NULL) {
-	    goto failedAfterAlloc;
+    if (superc == 0) {
+	superclasses = ckrealloc(superclasses, sizeof(Class *));
+	superclasses[0] = oPtr->fPtr->objectCls;
+	superc = 1;
+	if (TclOOIsReachable(oPtr->fPtr->classCls, oPtr->classPtr)) {
+	    superclasses[0] = oPtr->fPtr->classCls;
 	}
-	for (j=0 ; j<i ; j++) {
-	    if (superclasses[j] == superclasses[i]) {
-		Tcl_SetObjResult(interp, Tcl_NewStringObj(
-			"class should only be a direct superclass once", -1));
-		Tcl_SetErrorCode(interp, "TCL", "OO", "REPETITIOUS", NULL);
+    } else {
+	for (i=0 ; i<superc ; i++) {
+	    superclasses[i] = GetClassInOuterContext(interp, superv[i],
+		    "only a class can be a superclass");
+	    if (superclasses[i] == NULL) {
 		goto failedAfterAlloc;
 	    }
-	}
-	if (TclOOIsReachable(oPtr->classPtr, superclasses[i])) {
-	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
-		    "attempt to form circular dependency graph", -1));
-	    Tcl_SetErrorCode(interp, "TCL", "OO", "CIRCULARITY", NULL);
-	failedAfterAlloc:
-	    ckfree((char *) superclasses);
-	    return TCL_ERROR;
+	    for (j=0 ; j<i ; j++) {
+		if (superclasses[j] == superclasses[i]) {
+		    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+			    "class should only be a direct superclass once",
+			    -1));
+		    Tcl_SetErrorCode(interp, "TCL", "OO", "REPETITIOUS",NULL);
+		    goto failedAfterAlloc;
+		}
+	    }
+	    if (TclOOIsReachable(oPtr->classPtr, superclasses[i])) {
+		Tcl_SetObjResult(interp, Tcl_NewStringObj(
+			"attempt to form circular dependency graph", -1));
+		Tcl_SetErrorCode(interp, "TCL", "OO", "CIRCULARITY", NULL);
+	    failedAfterAlloc:
+		ckfree((char *) superclasses);
+		return TCL_ERROR;
+	    }
 	}
    }

@@ -122,12 +122,6 @@ typedef struct ForwardMethod {
    Tcl_Obj *prefixObj;		/* The list of values to use to replace the
 				 * object and method name with. Will be a
 				 * non-empty list. */
-    int fullyQualified;		/* If 1, the command name is fully qualified
-				 * and we should let the default Tcl mechanism
-				 * handle the command lookup because it is
-				 * more efficient. If 0, we need to do a
-				 * specialized lookup based on the current
-				 * object's namespace. */
 } ForwardMethod;

 /*
@@ -5,6 +5,17 @@
 #ifndef _TCLOOINTDECLS
 #define _TCLOOINTDECLS

+#undef TCL_STORAGE_CLASS
+#ifdef BUILD_tcl
+#   define TCL_STORAGE_CLASS DLLEXPORT
+#else
+#   ifdef USE_TCL_STUBS
+#      define TCL_STORAGE_CLASS
+#   else
+#      define TCL_STORAGE_CLASS DLLIMPORT
+#   endif
+#endif
+
 /* !BEGIN!: Do not edit below this line. */

 /*
@@ -12,46 +23,46 @@
 */

 /* 0 */
-TCLOOAPI Tcl_Object	TclOOGetDefineCmdContext(Tcl_Interp *interp);
+EXTERN Tcl_Object	TclOOGetDefineCmdContext(Tcl_Interp *interp);
 /* 1 */
-TCLOOAPI Tcl_Method	TclOOMakeProcInstanceMethod(Tcl_Interp *interp,
+EXTERN Tcl_Method	TclOOMakeProcInstanceMethod(Tcl_Interp *interp,
 				Object *oPtr, int flags, Tcl_Obj *nameObj,
 				Tcl_Obj *argsObj, Tcl_Obj *bodyObj,
 				const Tcl_MethodType *typePtr,
 				ClientData clientData, Proc **procPtrPtr);
 /* 2 */
-TCLOOAPI Tcl_Method	TclOOMakeProcMethod(Tcl_Interp *interp,
+EXTERN Tcl_Method	TclOOMakeProcMethod(Tcl_Interp *interp,
 				Class *clsPtr, int flags, Tcl_Obj *nameObj,
 				const char *namePtr, Tcl_Obj *argsObj,
 				Tcl_Obj *bodyObj,
 				const Tcl_MethodType *typePtr,
 				ClientData clientData, Proc **procPtrPtr);
 /* 3 */
-TCLOOAPI Method *	TclOONewProcInstanceMethod(Tcl_Interp *interp,
+EXTERN Method *		TclOONewProcInstanceMethod(Tcl_Interp *interp,
 				Object *oPtr, int flags, Tcl_Obj *nameObj,
 				Tcl_Obj *argsObj, Tcl_Obj *bodyObj,
 				ProcedureMethod **pmPtrPtr);
 /* 4 */
-TCLOOAPI Method *	TclOONewProcMethod(Tcl_Interp *interp, Class *clsPtr,
+EXTERN Method *		TclOONewProcMethod(Tcl_Interp *interp, Class *clsPtr,
 				int flags, Tcl_Obj *nameObj,
 				Tcl_Obj *argsObj, Tcl_Obj *bodyObj,
 				ProcedureMethod **pmPtrPtr);
 /* 5 */
-TCLOOAPI int		TclOOObjectCmdCore(Object *oPtr, Tcl_Interp *interp,
+EXTERN int		TclOOObjectCmdCore(Object *oPtr, Tcl_Interp *interp,
 				int objc, Tcl_Obj *const *objv,
 				int publicOnly, Class *startCls);
 /* 6 */
-TCLOOAPI int		TclOOIsReachable(Class *targetPtr, Class *startPtr);
+EXTERN int		TclOOIsReachable(Class *targetPtr, Class *startPtr);
 /* 7 */
-TCLOOAPI Method *	TclOONewForwardMethod(Tcl_Interp *interp,
+EXTERN Method *		TclOONewForwardMethod(Tcl_Interp *interp,
 				Class *clsPtr, int isPublic,
 				Tcl_Obj *nameObj, Tcl_Obj *prefixObj);
 /* 8 */
-TCLOOAPI Method *	TclOONewForwardInstanceMethod(Tcl_Interp *interp,
+EXTERN Method *		TclOONewForwardInstanceMethod(Tcl_Interp *interp,
 				Object *oPtr, int isPublic, Tcl_Obj *nameObj,
 				Tcl_Obj *prefixObj);
 /* 9 */
-TCLOOAPI Tcl_Method	TclOONewProcInstanceMethodEx(Tcl_Interp *interp,
+EXTERN Tcl_Method	TclOONewProcInstanceMethodEx(Tcl_Interp *interp,
 				Tcl_Object oPtr,
 				TclOO_PreCallProc *preCallPtr,
 				TclOO_PostCallProc *postCallPtr,
@@ -60,7 +71,7 @@ TCLOOAPI Tcl_Method	TclOONewProcInstanceMethodEx(Tcl_Interp *interp,
 				Tcl_Obj *argsObj, Tcl_Obj *bodyObj,
 				int flags, void **internalTokenPtr);
 /* 10 */
-TCLOOAPI Tcl_Method	TclOONewProcMethodEx(Tcl_Interp *interp,
+EXTERN Tcl_Method	TclOONewProcMethodEx(Tcl_Interp *interp,
 				Tcl_Class clsPtr,
 				TclOO_PreCallProc *preCallPtr,
 				TclOO_PostCallProc *postCallPtr,
@@ -69,22 +80,22 @@ TCLOOAPI Tcl_Method	TclOONewProcMethodEx(Tcl_Interp *interp,
 				Tcl_Obj *argsObj, Tcl_Obj *bodyObj,
 				int flags, void **internalTokenPtr);
 /* 11 */
-TCLOOAPI int		TclOOInvokeObject(Tcl_Interp *interp,
+EXTERN int		TclOOInvokeObject(Tcl_Interp *interp,
 				Tcl_Object object, Tcl_Class startCls,
 				int publicPrivate, int objc,
 				Tcl_Obj *const *objv);
 /* 12 */
-TCLOOAPI void		TclOOObjectSetFilters(Object *oPtr, int numFilters,
+EXTERN void		TclOOObjectSetFilters(Object *oPtr, int numFilters,
 				Tcl_Obj *const *filters);
 /* 13 */
-TCLOOAPI void		TclOOClassSetFilters(Tcl_Interp *interp,
+EXTERN void		TclOOClassSetFilters(Tcl_Interp *interp,
 				Class *classPtr, int numFilters,
 				Tcl_Obj *const *filters);
 /* 14 */
-TCLOOAPI void		TclOOObjectSetMixins(Object *oPtr, int numMixins,
+EXTERN void		TclOOObjectSetMixins(Object *oPtr, int numMixins,
 				Class *const *mixins);
 /* 15 */
-TCLOOAPI void		TclOOClassSetMixins(Tcl_Interp *interp,
+EXTERN void		TclOOClassSetMixins(Tcl_Interp *interp,
 				Class *classPtr, int numMixins,
 				Class *const *mixins);

@@ -160,4 +171,7 @@ extern const TclOOIntStubs *tclOOIntStubsPtr;
 #endif /* defined(USE_TCLOO_STUBS) */

 /* !END!: Do not edit above this line. */
+
+#undef TCL_STORAGE_CLASS
+#define TCL_STORAGE_CLASS DLLIMPORT
 #endif /* _TCLOOINTDECLS */
@@ -513,8 +513,8 @@ TclOOMakeProcInstanceMethod(
 		cfPtr->data.eval.path = context.data.eval.path;
 		Tcl_IncrRefCount(cfPtr->data.eval.path);

-		cfPtr->cmd.str.cmd = NULL;
-		cfPtr->cmd.str.len = 0;
+		cfPtr->cmd = NULL;
+		cfPtr->len = 0;

 		hPtr = Tcl_CreateHashEntry(iPtr->linePBodyPtr,
 			(char *) procPtr, &isNew);
@@ -626,8 +626,8 @@ TclOOMakeProcMethod(
 		cfPtr->data.eval.path = context.data.eval.path;
 		Tcl_IncrRefCount(cfPtr->data.eval.path);

-		cfPtr->cmd.str.cmd = NULL;
-		cfPtr->cmd.str.len = 0;
+		cfPtr->cmd = NULL;
+		cfPtr->len = 0;

 		hPtr = Tcl_CreateHashEntry(iPtr->linePBodyPtr,
 			(char *) procPtr, &isNew);
@@ -1290,11 +1290,57 @@ CloneProcedureMethod(
    ClientData *newClientData)
 {
    ProcedureMethod *pmPtr = clientData;
-    ProcedureMethod *pm2Ptr = ckalloc(sizeof(ProcedureMethod));
+    ProcedureMethod *pm2Ptr;
+    Tcl_Obj *bodyObj, *argsObj;
+    CompiledLocal *localPtr;

+    /*
+     * Copy the argument list.
+     */
+
+    argsObj = Tcl_NewObj();
+    for (localPtr=pmPtr->procPtr->firstLocalPtr; localPtr!=NULL;
+	    localPtr=localPtr->nextPtr) {
+	if (TclIsVarArgument(localPtr)) {
+	    Tcl_Obj *argObj = Tcl_NewObj();
+
+	    Tcl_ListObjAppendElement(NULL, argObj,
+		    Tcl_NewStringObj(localPtr->name, -1));
+	    if (localPtr->defValuePtr != NULL) {
+		Tcl_ListObjAppendElement(NULL, argObj, localPtr->defValuePtr);
+	    }
+	    Tcl_ListObjAppendElement(NULL, argsObj, argObj);
+	}
+    }
+
+    /*
+     * Must strip the internal representation in order to ensure that any
+     * bound references to instance variables are removed. [Bug 3609693]
+     */
+
+    bodyObj = Tcl_DuplicateObj(pmPtr->procPtr->bodyPtr);
+    TclFreeIntRep(bodyObj);
+
+    /*
+     * Create the actual copy of the method record, manufacturing a new proc
+     * record.
+     */
+
+    pm2Ptr = ckalloc(sizeof(ProcedureMethod));
    memcpy(pm2Ptr, pmPtr, sizeof(ProcedureMethod));
    pm2Ptr->refCount = 1;
-    pm2Ptr->procPtr->refCount++;
+    Tcl_IncrRefCount(argsObj);
+    Tcl_IncrRefCount(bodyObj);
+    if (TclCreateProc(interp, NULL, "", argsObj, bodyObj,
+	    &pm2Ptr->procPtr) != TCL_OK) {
+	Tcl_DecrRefCount(argsObj);
+	Tcl_DecrRefCount(bodyObj);
+	ckfree(pm2Ptr);
+	return TCL_ERROR;
+    }
+    Tcl_DecrRefCount(argsObj);
+    Tcl_DecrRefCount(bodyObj);
+
    if (pmPtr->cloneClientdataProc) {
 	pm2Ptr->clientData = pmPtr->cloneClientdataProc(pmPtr->clientData);
    }
@@ -1338,7 +1384,6 @@ TclOONewForwardInstanceMethod(
    fmPtr = ckalloc(sizeof(ForwardMethod));
    fmPtr->prefixObj = prefixObj;
    Tcl_ListObjIndex(interp, prefixObj, 0, &cmdObj);
-    fmPtr->fullyQualified = (strncmp(TclGetString(cmdObj), "::", 2) == 0);
    Tcl_IncrRefCount(prefixObj);
    return (Method *) Tcl_NewInstanceMethod(interp, (Tcl_Object) oPtr,
 	    nameObj, flags, &fwdMethodType, fmPtr);
@@ -1380,7 +1425,6 @@ TclOONewForwardMethod(
    fmPtr = ckalloc(sizeof(ForwardMethod));
    fmPtr->prefixObj = prefixObj;
    Tcl_ListObjIndex(interp, prefixObj, 0, &cmdObj);
-    fmPtr->fullyQualified = (strncmp(TclGetString(cmdObj), "::", 2) == 0);
    Tcl_IncrRefCount(prefixObj);
    return (Method *) Tcl_NewMethod(interp, (Tcl_Class) clsPtr, nameObj,
 	    flags, &fwdMethodType, fmPtr);
@@ -1409,7 +1453,6 @@ InvokeForwardMethod(
    ForwardMethod *fmPtr = clientData;
    Tcl_Obj **argObjs, **prefixObjs;
    int numPrefixes, len, skip = contextPtr->skip;
-    Command *cmdPtr;

    /*
     * Build the real list of arguments to use. Note that we know that the
@@ -1421,15 +1464,10 @@ InvokeForwardMethod(
    Tcl_ListObjGetElements(NULL, fmPtr->prefixObj, &numPrefixes, &prefixObjs);
    argObjs = InitEnsembleRewrite(interp, objc, objv, skip,
 	    numPrefixes, prefixObjs, &len);
-
-    if (fmPtr->fullyQualified) {
-	cmdPtr = NULL;
-    } else {
-	cmdPtr = (Command *) Tcl_FindCommand(interp, TclGetString(argObjs[0]),
-		contextPtr->oPtr->namespacePtr, 0 /* normal lookup */);
-    }
    Tcl_NRAddCallback(interp, FinalizeForwardCall, argObjs, NULL, NULL, NULL);
-    return TclNREvalObjv(interp, len, argObjs, TCL_EVAL_INVOKE, cmdPtr);
+    ((Interp *)interp)->lookupNsPtr
+	    = (Namespace *) contextPtr->oPtr->namespacePtr;
+    return TclNREvalObjv(interp, len, argObjs, TCL_EVAL_NOERR, NULL);
 }

 static int
@@ -1474,7 +1512,6 @@ CloneForwardMethod(
    ForwardMethod *fm2Ptr = ckalloc(sizeof(ForwardMethod));

    fm2Ptr->prefixObj = fmPtr->prefixObj;
-    fm2Ptr->fullyQualified = fmPtr->fullyQualified;
    Tcl_IncrRefCount(fm2Ptr->prefixObj);
    *newClientData = fm2Ptr;
    return TCL_OK;
@@ -97,7 +97,6 @@ typedef struct ThreadSpecificData {

 static Tcl_ThreadDataKey dataKey;

-static void             ContLineLocFree(char *clientData);
 static void             TclThreadFinalizeContLines(ClientData clientData);
 static ThreadSpecificData *TclGetContLineTable(void);

@@ -805,14 +804,7 @@ TclThreadFinalizeContLines(

    for (hPtr = Tcl_FirstHashEntry(tsdPtr->lineCLPtr, &hSearch);
 	    hPtr != NULL; hPtr = Tcl_NextHashEntry(&hSearch)) {
-	/*
-	 * We are not using Tcl_EventuallyFree (as in TclFreeObj()) because
-	 * here we can be sure that the compiler will not hold references to
-	 * the data in the hashtable, and using TEF might bork the
-	 * finalization sequence.
-	 */
-
-	ContLineLocFree(Tcl_GetHashValue(hPtr));
+	ckfree(Tcl_GetHashValue(hPtr));
 	Tcl_DeleteHashEntry(hPtr);
    }
    Tcl_DeleteHashTable(tsdPtr->lineCLPtr);
@@ -820,30 +812,6 @@ TclThreadFinalizeContLines(
    tsdPtr->lineCLPtr = NULL;
 }

-/*
- *----------------------------------------------------------------------
- *
- * ContLineLocFree --
- *
- *	The freProc for continuation line location tables.
- *
- * Results:
- *	None.
- *
- * Side effects:
- *	Releases memory.
- *
- * TIP #280
- *----------------------------------------------------------------------
- */
-
-static void
-ContLineLocFree(
-    char *clientData)
-{
-    ckfree(clientData);
-}
-
 /*
 *--------------------------------------------------------------
 *
@@ -1405,7 +1373,7 @@ TclFreeObj(
 	if (tsdPtr->lineCLPtr) {
            hPtr = Tcl_FindHashEntry(tsdPtr->lineCLPtr, objPtr);
 	    if (hPtr) {
-		Tcl_EventuallyFree(Tcl_GetHashValue(hPtr), ContLineLocFree);
+		ckfree(Tcl_GetHashValue(hPtr));
 		Tcl_DeleteHashEntry(hPtr);
 	    }
 	}
@@ -1496,7 +1464,7 @@ TclFreeObj(
 	if (tsdPtr->lineCLPtr) {
            hPtr = Tcl_FindHashEntry(tsdPtr->lineCLPtr, objPtr);
 	    if (hPtr) {
-		Tcl_EventuallyFree(Tcl_GetHashValue(hPtr), ContLineLocFree);
+		ckfree(Tcl_GetHashValue(hPtr));
 		Tcl_DeleteHashEntry(hPtr);
 	    }
 	}
@@ -86,6 +86,7 @@ LocateTargetAddresses(
 	case INST_JUMP4:
 	case INST_JUMP_TRUE4:
 	case INST_JUMP_FALSE4:
+	case INST_START_CMD:
 	    targetInstPtr = currentInstPtr+TclGetInt4AtPtr(currentInstPtr+1);
 	    goto storeTarget;
 	case INST_BEGIN_CATCH4:
@@ -109,8 +110,6 @@ LocateTargetAddresses(
 		DefineTargetAddress(tablePtr, currentInstPtr + 2*i - 1);
 	    }
 	    break;
-	case INST_START_CMD:
-	    assert (envPtr->atCmdStart < 2);
 	}
    }

@@ -213,7 +212,8 @@ ConvertZeroEffectToNOP(
 	int blank = 0, i, nextInst;

 	size = AddrLength(currentInstPtr);
-	while (*(currentInstPtr+size) == INST_NOP) {
+	while ((currentInstPtr + size < envPtr->codeNext)
+		&& *(currentInstPtr+size) == INST_NOP) {
 	    if (IsTargetAddress(&targets, currentInstPtr + size)) {
 		break;
 	    }
@@ -344,21 +344,28 @@ AdvanceJumps(
    CompileEnv *envPtr)
 {
    unsigned char *currentInstPtr;
+    Tcl_HashTable jumps;

    for (currentInstPtr = envPtr->codeStart ;
 	    currentInstPtr < envPtr->codeNext-1 ;
 	    currentInstPtr += AddrLength(currentInstPtr)) {
-	int offset, delta;
+	int offset, delta, isNew;

 	switch (*currentInstPtr) {
 	case INST_JUMP1:
 	case INST_JUMP_TRUE1:
 	case INST_JUMP_FALSE1:
 	    offset = TclGetInt1AtPtr(currentInstPtr + 1);
+	    Tcl_InitHashTable(&jumps, TCL_ONE_WORD_KEYS);
 	    for (delta=0 ; offset+delta != 0 ;) {
 		if (offset + delta < -128 || offset + delta > 127) {
 		    break;
 		}
+		Tcl_CreateHashEntry(&jumps, INT2PTR(offset), &isNew);
+		if (!isNew) {
+		    offset = TclGetInt1AtPtr(currentInstPtr + 1);
+		    break;
+		}
 		offset += delta;
 		switch (*(currentInstPtr + offset)) {
 		case INST_NOP:
@@ -373,13 +380,21 @@ AdvanceJumps(
 		}
 		break;
 	    }
+	    Tcl_DeleteHashTable(&jumps);
 	    TclStoreInt1AtPtr(offset, currentInstPtr + 1);
 	    continue;

 	case INST_JUMP4:
 	case INST_JUMP_TRUE4:
 	case INST_JUMP_FALSE4:
+	    Tcl_InitHashTable(&jumps, TCL_ONE_WORD_KEYS);
+	    Tcl_CreateHashEntry(&jumps, INT2PTR(0), &isNew);
 	    for (offset = TclGetInt4AtPtr(currentInstPtr + 1); offset!=0 ;) {
+		Tcl_CreateHashEntry(&jumps, INT2PTR(offset), &isNew);
+		if (!isNew) {
+		    offset = TclGetInt4AtPtr(currentInstPtr + 1);
+		    break;
+		}
 		switch (*(currentInstPtr + offset)) {
 		case INST_NOP:
 		    offset += InstLength(INST_NOP);
@@ -393,6 +408,7 @@ AdvanceJumps(
 		}
 		break;
 	    }
+	    Tcl_DeleteHashTable(&jumps);
 	    TclStoreInt4AtPtr(offset, currentInstPtr + 1);
 	    continue;
 	}
@@ -52,6 +52,10 @@ Tcl_SetPanicProc(
 #if defined(_WIN32)
    /* tclWinDebugPanic only installs if there is no panicProc yet. */
    if ((proc != tclWinDebugPanic) || (panicProc == NULL))
+#elif defined(__CYGWIN__)
+    if (proc == NULL)
+	panicProc = tclWinDebugPanic;
+    else
 #endif
    panicProc = proc;
 }
@@ -15,6 +15,7 @@
 
 #include "tclInt.h"
 #include "tclParse.h"
+#include <assert.h>

 /*
 * The following table provides parsing information about each possible 8-bit
@@ -1567,6 +1568,7 @@ Tcl_ParseVar(

    code = TclSubstTokens(interp, parsePtr->tokenPtr, parsePtr->numTokens,
 	    NULL, 1, NULL, NULL);
+    Tcl_FreeParse(parsePtr);
    TclStackFree(interp, parsePtr);
    if (code != TCL_OK) {
 	return NULL;
@@ -1577,16 +1579,13 @@ Tcl_ParseVar(
     * At this point we should have an object containing the value of a
     * variable. Just return the string from that object.
     *
-     * This should have returned the object for the user to manage, but
-     * instead we have some weak reference to the string value in the object,
-     * which is why we make sure the object exists after resetting the result.
-     * This isn't ideal, but it's the best we can do with the current
-     * documented interface. -- hobbs
+     * Since TclSubstTokens above returned TCL_OK, we know that objPtr
+     * is shared.  It is in both the interp result and the value of the
+     * variable.  Returning the string relies on that to be true.
     */

-    if (!Tcl_IsShared(objPtr)) {
-	Tcl_IncrRefCount(objPtr);
-    }
+    assert( Tcl_IsShared(objPtr) );
+
    Tcl_ResetResult(interp);
    return TclGetString(objPtr);
 }
@@ -271,8 +271,8 @@ Tcl_ProcObjCmd(
 		cfPtr->data.eval.path = contextPtr->data.eval.path;
 		Tcl_IncrRefCount(cfPtr->data.eval.path);

-		cfPtr->cmd.str.cmd = NULL;
-		cfPtr->cmd.str.len = 0;
+		cfPtr->cmd = NULL;
+		cfPtr->len = 0;

 		hePtr = Tcl_CreateHashEntry(iPtr->linePBodyPtr,
 			procPtr, &isNew);
@@ -2595,8 +2595,8 @@ SetLambdaFromAny(
 		cfPtr->data.eval.path = contextPtr->data.eval.path;
 		Tcl_IncrRefCount(cfPtr->data.eval.path);

-		cfPtr->cmd.str.cmd = NULL;
-		cfPtr->cmd.str.len = 0;
+		cfPtr->cmd = NULL;
+		cfPtr->len = 0;
 	    }

 	    /*
@@ -1112,6 +1112,7 @@ Tcl_SetObjErrorCode(
 *----------------------------------------------------------------------
 */

+#undef Tcl_GetErrorLine
 int
 Tcl_GetErrorLine(
    Tcl_Interp *interp)
@@ -1129,6 +1130,7 @@ Tcl_GetErrorLine(
 *----------------------------------------------------------------------
 */

+#undef Tcl_SetErrorLine
 void
 Tcl_SetErrorLine(
    Tcl_Interp *interp,
@@ -43,6 +43,7 @@
 #undef TclSockMinimumBuffers
 #define TclBackgroundException Tcl_BackgroundException
 #undef Tcl_SetIntObj
+#undef TclpInetNtoa

 /* See bug 510001: TclSockMinimumBuffers needs plat imp */
 #ifdef _WIN64
@@ -0,0 +1,58 @@
+/*
+ * tclStubLibTbl.c --
+ *
+ *	Stub object that will be statically linked into extensions that want
+ *	to access Tcl.
+ *
+ * Copyright (c) 1998-1999 by Scriptics Corporation.
+ * Copyright (c) 1998 Paul Duffin.
+ *
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
+
+#include "tclInt.h"
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclInitStubTable --
+ *
+ *	Initialize the stub table, using the structure pointed at
+ *	by the "version" argument.
+ *
+ * Results:
+ *	Outputs the value of the "version" argument.
+ *
+ * Side effects:
+ *	Sets the stub table pointers.
+ *
+ *----------------------------------------------------------------------
+ */
+MODULE_SCOPE const char *
+TclInitStubTable(
+	const char *version) /* points to the version field of a
+	                        TclStubInfoType structure variable. */
+{
+    tclStubsPtr = ((const TclStubInfoType *) version)->stubs;
+
+    if (tclStubsPtr->hooks) {
+	tclPlatStubsPtr = tclStubsPtr->hooks->tclPlatStubs;
+	tclIntStubsPtr = tclStubsPtr->hooks->tclIntStubs;
+	tclIntPlatStubsPtr = tclStubsPtr->hooks->tclIntPlatStubs;
+    } else {
+	tclPlatStubsPtr = NULL;
+	tclIntStubsPtr = NULL;
+	tclIntPlatStubsPtr = NULL;
+    }
+
+    return version;
+}
+
+/*
+ * Local Variables:
+ * mode: c
+ * c-basic-offset: 4
+ * fill-column: 78
+ * End:
+ */
@@ -1555,14 +1555,14 @@ DelCallbackProc(
 *
 * TestdelCmd --
 *
- *	This procedure implements the "testdcall" command.  It is used
- *	to test Tcl_CallWhenDeleted.
+ *	This procedure implements the "testdel" command.  It is used
+ *	to test calling of command deletion callbacks.
 *
 * Results:
 *	A standard Tcl result.
 *
 * Side effects:
- *	Creates and deletes interpreters.
+ *	Creates a command.
 *
 *----------------------------------------------------------------------
 */
@@ -1856,7 +1856,7 @@ TestdstringCmd(
 	if (Tcl_GetInt(interp, argv[2], &count) != TCL_OK) {
 	    return TCL_ERROR;
 	}
-	Tcl_DStringTrunc(&dstring, count);
+	Tcl_DStringSetLength(&dstring, count);
    } else if (strcmp(argv[1], "start") == 0) {
 	if (argc != 2) {
 	    goto wrongNumArgs;
@@ -4408,8 +4408,26 @@ TestseterrorcodeCmd(
 	Tcl_SetResult(interp, "too many args", TCL_STATIC);
 	return TCL_ERROR;
    }
-    Tcl_SetErrorCode(interp, argv[1], argv[2], argv[3], argv[4],
-	    argv[5], NULL);
+    switch (argc) {
+    case 1:
+	Tcl_SetErrorCode(interp, "NONE", NULL);
+	break;
+    case 2:
+	Tcl_SetErrorCode(interp, argv[1], NULL);
+	break;
+    case 3:
+	Tcl_SetErrorCode(interp, argv[1], argv[2], NULL);
+	break;
+    case 4:
+	Tcl_SetErrorCode(interp, argv[1], argv[2], argv[3], NULL);
+	break;
+    case 5:
+	Tcl_SetErrorCode(interp, argv[1], argv[2], argv[3], argv[4], NULL);
+	break;
+    case 6:
+	Tcl_SetErrorCode(interp, argv[1], argv[2], argv[3], argv[4],
+		argv[5], NULL);
+    }
    return TCL_ERROR;
 }

@@ -337,7 +337,7 @@ ThreadObjCmd(
 	     */

 	    if (objc == 2) {
-		idObj = Tcl_NewLongObj((long)(size_t)Tcl_GetCurrentThread());
+		idObj = Tcl_NewWideIntObj((Tcl_WideInt)(size_t)Tcl_GetCurrentThread());
 	    } else if (objc == 3
 		    && strcmp("-main", Tcl_GetString(objv[2])) == 0) {
 		Tcl_MutexLock(&threadMutex);
@@ -355,14 +355,14 @@ ThreadObjCmd(
 	    return TCL_ERROR;
 	}
    case THREAD_JOIN: {
-	long id;
+	Tcl_WideInt id;
 	int result, status;

 	if (objc != 3) {
 	    Tcl_WrongNumArgs(interp, 2, objv, "id");
 	    return TCL_ERROR;
 	}
-	if (Tcl_GetLongFromObj(interp, objv[2], &id) != TCL_OK) {
+	if (Tcl_GetWideIntFromObj(interp, objv[2], &id) != TCL_OK) {
 	    return TCL_ERROR;
 	}

@@ -372,7 +372,7 @@ ThreadObjCmd(
 	} else {
 	    char buf[20];

-	    TclFormatInt(buf, id);
+	    sprintf(buf, "%" TCL_LL_MODIFIER "d", id);
 	    Tcl_AppendResult(interp, "cannot join thread ", buf, NULL);
 	}
 	return result;
@@ -384,7 +384,7 @@ ThreadObjCmd(
 	}
 	return ThreadList(interp);
    case THREAD_SEND: {
-	long id;
+	Tcl_WideInt id;
 	const char *script;
 	int wait, arg;

@@ -403,7 +403,7 @@ ThreadObjCmd(
 	    wait = 1;
 	    arg = 2;
 	}
-	if (Tcl_GetLongFromObj(interp, objv[arg], &id) != TCL_OK) {
+	if (Tcl_GetWideIntFromObj(interp, objv[arg], &id) != TCL_OK) {
 	    return TCL_ERROR;
 	}
 	arg++;
@@ -523,7 +523,7 @@ ThreadCreate(
    Tcl_ConditionWait(&ctrl.condWait, &threadMutex, NULL);
    Tcl_MutexUnlock(&threadMutex);
    Tcl_ConditionFinalize(&ctrl.condWait);
-    Tcl_SetObjResult(interp, Tcl_NewLongObj((long)(size_t)id));
+    Tcl_SetObjResult(interp, Tcl_NewWideIntObj((Tcl_WideInt)(size_t)id));
    return TCL_OK;
 }

@@ -655,7 +655,7 @@ ThreadErrorProc(
    char *script;
    char buf[TCL_DOUBLE_SPACE+1];

-    TclFormatInt(buf, (size_t) Tcl_GetCurrentThread());
+    sprintf(buf, "%" TCL_LL_MODIFIER "d", (Tcl_WideInt)(size_t)Tcl_GetCurrentThread());

    errorInfo = Tcl_GetVar(interp, "errorInfo", TCL_GLOBAL_ONLY);
    if (errorProcString == NULL) {
@@ -773,7 +773,7 @@ ThreadList(
    Tcl_MutexLock(&threadMutex);
    for (tsdPtr = threadList ; tsdPtr ; tsdPtr = tsdPtr->nextPtr) {
 	Tcl_ListObjAppendElement(interp, listPtr,
-		Tcl_NewLongObj((long)(size_t)tsdPtr->threadId));
+		Tcl_NewWideIntObj((Tcl_WideInt)(size_t)tsdPtr->threadId));
    }
    Tcl_MutexUnlock(&threadMutex);
    Tcl_SetObjResult(interp, listPtr);
@@ -1555,10 +1555,10 @@ Tcl_UniCharIsSpace(
     */

    if (((Tcl_UniChar) ch) < ((Tcl_UniChar) 0x80)) {
-	return isspace(UCHAR(ch)); /* INTL: ISO space */
+	return TclIsSpaceProc((char) ch);
    } else if ((Tcl_UniChar) ch == 0x0085 || (Tcl_UniChar) ch == 0x180e
 	    || (Tcl_UniChar) ch == 0x200b || (Tcl_UniChar) ch == 0x2060
-	    || (Tcl_UniChar) ch == 0xfeff) {
+	    || (Tcl_UniChar) ch == 0x202f || (Tcl_UniChar) ch == 0xfeff) {
 	return 1;
    } else {
 	return ((SPACE_BITS >> GetCategory(ch)) & 1);
@@ -3580,10 +3580,9 @@ UpdateStringOfEndOffset(
    register Tcl_Obj *objPtr)
 {
    char buffer[TCL_INTEGER_SPACE + 5];
-    register int len;
+    register int len = 3;

    memcpy(buffer, "end", 4);
-    len = sizeof("end") - 1;
    if (objPtr->internalRep.longValue != 0) {
 	buffer[len++] = '-';
 	len += TclFormatInt(buffer+len, -(objPtr->internalRep.longValue));
@@ -3847,6 +3847,53 @@ ArrayNamesCmd(
    return TCL_OK;
 }

+/*
+ *----------------------------------------------------------------------
+ *
+ * TclFindArrayPtrElements --
+ *
+ *	Fill out a hash table (which *must* use Tcl_Obj* keys) with an entry
+ *	for each existing element of the given array. The provided hash table
+ *	is assumed to be initially empty.
+ *
+ * Result:
+ *	none
+ *
+ * Side effects:
+ *	The keys of the array gain an extra reference. The supplied hash table
+ *	has elements added to it.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TclFindArrayPtrElements(
+    Var *arrayPtr,
+    Tcl_HashTable *tablePtr)
+{
+    Var *varPtr;
+    Tcl_HashSearch search;
+
+    if ((arrayPtr == NULL) || !TclIsVarArray(arrayPtr)
+	    || TclIsVarUndefined(arrayPtr)) {
+	return;
+    }
+
+    for (varPtr=VarHashFirstVar(arrayPtr->value.tablePtr, &search);
+	    varPtr!=NULL ; varPtr=VarHashNextVar(&search)) {
+	Tcl_HashEntry *hPtr;
+	Tcl_Obj *nameObj;
+	int dummy;
+
+	if (TclIsVarUndefined(varPtr)) {
+	    continue;
+	}
+	nameObj = VarHashGetKey(varPtr);
+	hPtr = Tcl_CreateHashEntry(tablePtr, (char *) nameObj, &dummy);
+	Tcl_SetHashValue(hPtr, nameObj);
+    }
+}
+
 /*
 *----------------------------------------------------------------------
 *
@@ -513,6 +513,32 @@ proc auto_mkindex_parser::fullname {name} {
    return [string map [list \0 \$] $name]
 }

+# auto_mkindex_parser::indexEntry --
+#
+# Used by commands like "proc" within the auto_mkindex parser to add a
+# correctly-quoted entry to the index. This is shared code so it is done
+# *right*, in one place.
+#
+# Arguments:
+# name -		Name that is being added to index.
+
+proc auto_mkindex_parser::indexEntry {name} {
+    variable index
+    variable scriptFile
+
+    # We convert all metacharacters to their backslashed form, and pre-split
+    # the file name that we know about (which will be a proper list, and so
+    # correctly quoted).
+
+    set name [string range [list \}[fullname $name]] 2 end]
+    set filenameParts [file split $scriptFile]
+
+    append index [format \
+	    {set auto_index(%s) [list source [file join $dir %s]]%s} \
+	    $name $filenameParts \n]
+    return
+}
+
 if {[llength $::auto_mkindex_parser::initCommands]} {
    return
 }
@@ -524,15 +550,7 @@ if {[llength $::auto_mkindex_parser::initCommands]} {
 # Adds an entry to the auto index list for the given procedure name.

 auto_mkindex_parser::command proc {name args} {
-    variable index
-    variable scriptFile
-    # Do some fancy reformatting on the "source" call to handle platform
-    # differences with respect to pathnames.  Use format just so that the
-    # command is a little easier to read (otherwise it'd be full of
-    # backslashed dollar signs, etc.
-    append index [list set auto_index([fullname $name])] \
-	    [format { [list source [file join $dir %s]]} \
-	    [file split $scriptFile]] "\n"
+    indexEntry $name
 }

 # Conditionally add support for Tcl byte code files.  There are some tricky
@@ -559,14 +577,7 @@ auto_mkindex_parser::hook {
 	# procedure name.

 	auto_mkindex_parser::commandInit tbcload::bcproc {name args} {
-	    variable index
-	    variable scriptFile
-	    # Do some nice reformatting of the "source" call, to get around
-	    # path differences on different platforms.  We use the format
-	    # command just so that the code is a little easier to read.
-	    append index [list set auto_index([fullname $name])] \
-		    [format { [list source [file join $dir %s]]} \
-		    [file split $scriptFile]] "\n"
+	    indexEntry $name
 	}
    }
 }
@@ -610,6 +621,13 @@ auto_mkindex_parser::command namespace {op args} {
 	    variable contextStack
 	    if {[lindex $args 0] eq "create"} {
 		set name ::[join [lreverse $contextStack] ::]
+		catch {
+		    set name [dict get [lrange $args 1 end] -command]
+		    if {![string match ::* $name]} {
+			set name ::[join [lreverse $contextStack] ::]$name
+		    }
+		    regsub -all ::+ $name :: name
+		}
 		# create artifical proc to force an entry in the tclIndex
 		$parser eval [list ::proc $name {} {}]
 	    }
@@ -617,4 +635,17 @@ auto_mkindex_parser::command namespace {op args} {
    }
 }

+# AUTO MKINDEX:  oo::class create name ?definition?
+# Adds an entry to the auto index list for the given class name.
+auto_mkindex_parser::command oo::class {op name {body ""}} {
+    if {$op eq "create"} {
+	indexEntry $name
+    }
+}
+auto_mkindex_parser::command class {op name {body ""}} {
+    if {$op eq "create"} {
+	indexEntry $name
+    }
+}
+
 return
@@ -324,7 +324,7 @@ proc ::tcl::clock::Initialize {} {
 	{-10800 0 3600 0 2 0 2 2 0 0 0 0 10 0 3 2 0 0 0} :America/Sao_Paulo
 	{-10800 0 3600 0 10 0 5 2 0 0 0 0 4 0 1 2 0 0 0} :America/Godthab
 	{-10800 0 3600 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0}  :America/Buenos_Aires
-        {-10800 0 3600 0 2 0 5 2 0 0 0 0 11 0 1 2 0 0 0} :America/Brasilia
+        {-10800 0 3600 0 2 0 5 2 0 0 0 0 11 0 1 2 0 0 0} :America/Bahia
        {-10800 0 3600 0 3 0 2 2 0 0 0 0 10 0 1 2 0 0 0} :America/Montevideo
 	{-7200 0 3600 0 9 0 5 2 0 0 0 0 3 0 5 2 0 0 0}   :America/Noronha
 	{-3600 0 3600 0 10 0 5 3 0 0 0 0 3 0 5 2 0 0 0}  :Atlantic/Azores
@@ -3861,7 +3861,7 @@ proc ::tcl::clock::ProcessPosixTimeZone { z } {

    # Put DST in effect in all years from 1916 to 2099.

-    for { set y 1916 } { $y < 2099 } { incr y } {
+    for { set y 1916 } { $y < 2100 } { incr y } {
 	set startTime [DeterminePosixDSTTime $z start $y]
 	incr startTime [expr { - wide($stdOffset) }]
 	set endTime [DeterminePosixDSTTime $z end $y]
@@ -16,7 +16,7 @@
 if {[info commands package] == ""} {
    error "version mismatch: library\nscripts expect Tcl version 7.5b1 or later but the loaded version is\nonly [info patchlevel]"
 }
-package require -exact Tcl 8.6.0
+package require -exact Tcl 8.6.1

 # Compute the auto path to use in this interpreter.
 # The values on the path come from several locations:
@@ -9,4 +9,4 @@
 # full path name of this file's directory.

 if {![package vsatisfies [package provide Tcl] 8.5]} {return}
-package ifneeded tcltest 2.3.5 [list source [file join $dir tcltest.tcl]]
+package ifneeded tcltest 2.3.6 [list source [file join $dir tcltest.tcl]]
@@ -22,7 +22,7 @@ namespace eval tcltest {
    # When the version number changes, be sure to update the pkgIndex.tcl file,
    # and the install directory in the Makefiles.  When the minor version
    # changes (new feature) be sure to update the man page as well.
-    variable Version 2.3.5
+    variable Version 2.3.6

    # Compatibility support for dumb variables defined in tcltest 1
    # Do not use these.  Call [package provide Tcl] and [info patchlevel]
@@ -238,6 +238,15 @@ proc ::tcl::tm::UnknownHandler {original name args} {
 			continue
 		    }

+		    if {[package ifneeded $pkgname $pkgversion] ne {}} {
+			# There's already a provide script registered for
+			# this version of this package.  Since all units of
+			# code claiming to be the same version of the same
+			# package ought to be identical, just stick with
+			# the one we already have.
+			continue
+		    }
+
 		    # We have found a candidate, generate a "provide script"
 		    # for it, and remember it.  Note that we are using ::list
 		    # to do this; locally [list] means something else without
@@ -34,191 +34,135 @@ set TZData(:Africa/Casablanca) {
    {1345428000 3600 1 WEST}
    {1348970400 0 0 WET}
    {1367114400 3600 1 WEST}
-    {1373335200 0 0 WET}
-    {1375927200 3600 1 WEST}
-    {1380420000 0 0 WET}
-    {1398564000 3600 1 WEST}
+    {1373162400 0 0 WET}
+    {1376100000 3600 1 WEST}
+    {1382839200 0 0 WET}
+    {1396144800 3600 1 WEST}
    {1404007200 0 0 WET}
    {1406599200 3600 1 WEST}
-    {1411869600 0 0 WET}
-    {1430013600 3600 1 WEST}
+    {1414288800 0 0 WET}
+    {1427594400 3600 1 WEST}
    {1434592800 0 0 WET}
    {1437184800 3600 1 WEST}
-    {1443319200 0 0 WET}
-    {1461463200 3600 1 WEST}
+    {1445738400 0 0 WET}
+    {1459044000 3600 1 WEST}
    {1465264800 0 0 WET}
    {1467856800 3600 1 WEST}
-    {1474768800 0 0 WET}
-    {1493517600 3600 1 WEST}
+    {1477792800 0 0 WET}
+    {1490493600 3600 1 WEST}
    {1495850400 0 0 WET}
    {1498442400 3600 1 WEST}
-    {1506218400 0 0 WET}
-    {1524967200 3600 1 WEST}
+    {1509242400 0 0 WET}
+    {1521943200 3600 1 WEST}
    {1526436000 0 0 WET}
    {1529028000 3600 1 WEST}
-    {1538272800 0 0 WET}
-    {1556416800 3600 1 WEST}
+    {1540692000 0 0 WET}
+    {1553997600 3600 1 WEST}
    {1557108000 0 0 WET}
    {1559700000 3600 1 WEST}
-    {1569722400 0 0 WET}
+    {1572141600 0 0 WET}
+    {1585447200 3600 1 WEST}
+    {1587693600 0 0 WET}
    {1590285600 3600 1 WEST}
-    {1601172000 0 0 WET}
+    {1603591200 0 0 WET}
+    {1616896800 3600 1 WEST}
+    {1618279200 0 0 WET}
    {1620871200 3600 1 WEST}
-    {1632621600 0 0 WET}
+    {1635645600 0 0 WET}
+    {1648346400 3600 1 WEST}
+    {1648951200 0 0 WET}
    {1651543200 3600 1 WEST}
-    {1664071200 0 0 WET}
-    {1682820000 3600 1 WEST}
-    {1695520800 0 0 WET}
-    {1714269600 3600 1 WEST}
-    {1727575200 0 0 WET}
-    {1745719200 3600 1 WEST}
-    {1759024800 0 0 WET}
-    {1777168800 3600 1 WEST}
-    {1790474400 0 0 WET}
-    {1808618400 3600 1 WEST}
-    {1821924000 0 0 WET}
-    {1840672800 3600 1 WEST}
-    {1853373600 0 0 WET}
-    {1872122400 3600 1 WEST}
-    {1885428000 0 0 WET}
-    {1903572000 3600 1 WEST}
-    {1916877600 0 0 WET}
-    {1935021600 3600 1 WEST}
-    {1948327200 0 0 WET}
-    {1966471200 3600 1 WEST}
-    {1979776800 0 0 WET}
-    {1997920800 3600 1 WEST}
-    {2011226400 0 0 WET}
-    {2029975200 3600 1 WEST}
-    {2042676000 0 0 WET}
-    {2061424800 3600 1 WEST}
-    {2074730400 0 0 WET}
-    {2092874400 3600 1 WEST}
-    {2106180000 0 0 WET}
-    {2124324000 3600 1 WEST}
-    {2137629600 0 0 WET}
-    {2155773600 3600 1 WEST}
-    {2169079200 0 0 WET}
-    {2187223200 3600 1 WEST}
-    {2200528800 0 0 WET}
-    {2219277600 3600 1 WEST}
-    {2232583200 0 0 WET}
-    {2250727200 3600 1 WEST}
-    {2264032800 0 0 WET}
-    {2282176800 3600 1 WEST}
-    {2295482400 0 0 WET}
-    {2313626400 3600 1 WEST}
-    {2326932000 0 0 WET}
-    {2345076000 3600 1 WEST}
-    {2358381600 0 0 WET}
-    {2377130400 3600 1 WEST}
-    {2389831200 0 0 WET}
-    {2408580000 3600 1 WEST}
-    {2421885600 0 0 WET}
-    {2440029600 3600 1 WEST}
-    {2453335200 0 0 WET}
-    {2471479200 3600 1 WEST}
-    {2484784800 0 0 WET}
-    {2502928800 3600 1 WEST}
-    {2516234400 0 0 WET}
-    {2534378400 3600 1 WEST}
-    {2547684000 0 0 WET}
-    {2566432800 3600 1 WEST}
-    {2579133600 0 0 WET}
-    {2597882400 3600 1 WEST}
-    {2611188000 0 0 WET}
-    {2629332000 3600 1 WEST}
-    {2642637600 0 0 WET}
-    {2660781600 3600 1 WEST}
-    {2674087200 0 0 WET}
-    {2692231200 3600 1 WEST}
-    {2705536800 0 0 WET}
-    {2724285600 3600 1 WEST}
-    {2736986400 0 0 WET}
-    {2755735200 3600 1 WEST}
-    {2769040800 0 0 WET}
-    {2787184800 3600 1 WEST}
-    {2800490400 0 0 WET}
-    {2818634400 3600 1 WEST}
-    {2831940000 0 0 WET}
-    {2850084000 3600 1 WEST}
-    {2863389600 0 0 WET}
-    {2881533600 3600 1 WEST}
-    {2894839200 0 0 WET}
-    {2913588000 3600 1 WEST}
-    {2926288800 0 0 WET}
-    {2945037600 3600 1 WEST}
-    {2958343200 0 0 WET}
-    {2976487200 3600 1 WEST}
-    {2989792800 0 0 WET}
-    {3007936800 3600 1 WEST}
-    {3021242400 0 0 WET}
-    {3039386400 3600 1 WEST}
-    {3052692000 0 0 WET}
-    {3070836000 3600 1 WEST}
-    {3084141600 0 0 WET}
-    {3102890400 3600 1 WEST}
-    {3116196000 0 0 WET}
-    {3134340000 3600 1 WEST}
-    {3147645600 0 0 WET}
-    {3165789600 3600 1 WEST}
-    {3179095200 0 0 WET}
-    {3197239200 3600 1 WEST}
-    {3210544800 0 0 WET}
-    {3228688800 3600 1 WEST}
-    {3241994400 0 0 WET}
-    {3260743200 3600 1 WEST}
-    {3273444000 0 0 WET}
-    {3292192800 3600 1 WEST}
-    {3305498400 0 0 WET}
-    {3323642400 3600 1 WEST}
-    {3336948000 0 0 WET}
-    {3355092000 3600 1 WEST}
-    {3368397600 0 0 WET}
-    {3386541600 3600 1 WEST}
-    {3399847200 0 0 WET}
-    {3417991200 3600 1 WEST}
-    {3431296800 0 0 WET}
-    {3450045600 3600 1 WEST}
-    {3462746400 0 0 WET}
-    {3481495200 3600 1 WEST}
-    {3494800800 0 0 WET}
-    {3512944800 3600 1 WEST}
-    {3526250400 0 0 WET}
-    {3544394400 3600 1 WEST}
-    {3557700000 0 0 WET}
-    {3575844000 3600 1 WEST}
-    {3589149600 0 0 WET}
-    {3607898400 3600 1 WEST}
-    {3620599200 0 0 WET}
-    {3639348000 3600 1 WEST}
-    {3652653600 0 0 WET}
-    {3670797600 3600 1 WEST}
-    {3684103200 0 0 WET}
-    {3702247200 3600 1 WEST}
-    {3715552800 0 0 WET}
-    {3733696800 3600 1 WEST}
-    {3747002400 0 0 WET}
-    {3765146400 3600 1 WEST}
-    {3778452000 0 0 WET}
-    {3797200800 3600 1 WEST}
-    {3809901600 0 0 WET}
-    {3828650400 3600 1 WEST}
-    {3841956000 0 0 WET}
-    {3860100000 3600 1 WEST}
-    {3873405600 0 0 WET}
-    {3891549600 3600 1 WEST}
-    {3904855200 0 0 WET}
-    {3922999200 3600 1 WEST}
-    {3936304800 0 0 WET}
-    {3954448800 3600 1 WEST}
-    {3967754400 0 0 WET}
-    {3986503200 3600 1 WEST}
-    {3999808800 0 0 WET}
-    {4017952800 3600 1 WEST}
-    {4031258400 0 0 WET}
-    {4049402400 3600 1 WEST}
-    {4062708000 0 0 WET}
-    {4080852000 3600 1 WEST}
-    {4094157600 0 0 WET}
+    {1667095200 0 0 WET}
+    {1682128800 3600 1 WEST}
+    {1698544800 0 0 WET}
+    {1712714400 3600 1 WEST}
+    {1729994400 0 0 WET}
+    {1743386400 3600 1 WEST}
+    {1761444000 0 0 WET}
+    {1774749600 3600 1 WEST}
+    {1792893600 0 0 WET}
+    {1806199200 3600 1 WEST}
+    {1824948000 0 0 WET}
+    {1837648800 3600 1 WEST}
+    {1856397600 0 0 WET}
+    {1869098400 3600 1 WEST}
+    {1887847200 0 0 WET}
+    {1901152800 3600 1 WEST}
+    {1919296800 0 0 WET}
+    {1932602400 3600 1 WEST}
+    {1950746400 0 0 WET}
+    {1964052000 3600 1 WEST}
+    {1982800800 0 0 WET}
+    {1995501600 3600 1 WEST}
+    {2014250400 0 0 WET}
+    {2026951200 3600 1 WEST}
+    {2045700000 0 0 WET}
+    {2058400800 3600 1 WEST}
+    {2077149600 0 0 WET}
+    {2090455200 3600 1 WEST}
+    {2108167200 0 0 WET}
+    {2121904800 3600 1 WEST}
+    {2138839200 0 0 WET}
+    {2153354400 3600 1 WEST}
+    {2184800400 3600 1 WEST}
+    {2216250000 3600 1 WEST}
+    {2248304400 3600 1 WEST}
+    {2279754000 3600 1 WEST}
+    {2311203600 3600 1 WEST}
+    {2342653200 3600 1 WEST}
+    {2374102800 3600 1 WEST}
+    {2405552400 3600 1 WEST}
+    {2437606800 3600 1 WEST}
+    {2469056400 3600 1 WEST}
+    {2500506000 3600 1 WEST}
+    {2531955600 3600 1 WEST}
+    {2563405200 3600 1 WEST}
+    {2595459600 3600 1 WEST}
+    {2626909200 3600 1 WEST}
+    {2658358800 3600 1 WEST}
+    {2689808400 3600 1 WEST}
+    {2721258000 3600 1 WEST}
+    {2752707600 3600 1 WEST}
+    {2784762000 3600 1 WEST}
+    {2816211600 3600 1 WEST}
+    {2847661200 3600 1 WEST}
+    {2879110800 3600 1 WEST}
+    {2910560400 3600 1 WEST}
+    {2942010000 3600 1 WEST}
+    {2974064400 3600 1 WEST}
+    {3005514000 3600 1 WEST}
+    {3036963600 3600 1 WEST}
+    {3068413200 3600 1 WEST}
+    {3099862800 3600 1 WEST}
+    {3131917200 3600 1 WEST}
+    {3163366800 3600 1 WEST}
+    {3194816400 3600 1 WEST}
+    {3226266000 3600 1 WEST}
+    {3257715600 3600 1 WEST}
+    {3289165200 3600 1 WEST}
+    {3321219600 3600 1 WEST}
+    {3352669200 3600 1 WEST}
+    {3384118800 3600 1 WEST}
+    {3415568400 3600 1 WEST}
+    {3447018000 3600 1 WEST}
+    {3479072400 3600 1 WEST}
+    {3510522000 3600 1 WEST}
+    {3541971600 3600 1 WEST}
+    {3573421200 3600 1 WEST}
+    {3604870800 3600 1 WEST}
+    {3636320400 3600 1 WEST}
+    {3668374800 3600 1 WEST}
+    {3699824400 3600 1 WEST}
+    {3731274000 3600 1 WEST}
+    {3762723600 3600 1 WEST}
+    {3794173200 3600 1 WEST}
+    {3825622800 3600 1 WEST}
+    {3857677200 3600 1 WEST}
+    {3889126800 3600 1 WEST}
+    {3920576400 3600 1 WEST}
+    {3952026000 3600 1 WEST}
+    {3983475600 3600 1 WEST}
+    {4015530000 3600 1 WEST}
+    {4046979600 3600 1 WEST}
+    {4078429200 3600 1 WEST}
 }
@@ -1,39 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Africa/Juba) {
-    {-9223372036854775808 7584 0 LMT}
-    {-1230775584 7200 0 CAT}
-    {10360800 10800 1 CAST}
-    {24786000 7200 0 CAT}
-    {41810400 10800 1 CAST}
-    {56322000 7200 0 CAT}
-    {73432800 10800 1 CAST}
-    {87944400 7200 0 CAT}
-    {104882400 10800 1 CAST}
-    {119480400 7200 0 CAT}
-    {136332000 10800 1 CAST}
-    {151016400 7200 0 CAT}
-    {167781600 10800 1 CAST}
-    {182552400 7200 0 CAT}
-    {199231200 10800 1 CAST}
-    {214174800 7200 0 CAT}
-    {230680800 10800 1 CAST}
-    {245710800 7200 0 CAT}
-    {262735200 10800 1 CAST}
-    {277246800 7200 0 CAT}
-    {294184800 10800 1 CAST}
-    {308782800 7200 0 CAT}
-    {325634400 10800 1 CAST}
-    {340405200 7200 0 CAT}
-    {357084000 10800 1 CAST}
-    {371941200 7200 0 CAT}
-    {388533600 10800 1 CAST}
-    {403477200 7200 0 CAT}
-    {419983200 10800 1 CAST}
-    {435013200 7200 0 CAT}
-    {452037600 10800 1 CAST}
-    {466635600 7200 0 CAT}
-    {483487200 10800 1 CAST}
-    {498171600 7200 0 CAT}
-    {947930400 10800 0 EAT}
+if {![info exists TZData(Africa/Khartoum)]} {
+    LoadTimeZoneFile Africa/Khartoum
 }
+set TZData(:Africa/Juba) $TZData(:Africa/Khartoum)
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:America/Anguilla) {
-    {-9223372036854775808 -15136 0 LMT}
-    {-1825098464 -14400 0 AST}
+if {![info exists TZData(America/Port_of_Spain)]} {
+    LoadTimeZoneFile America/Port_of_Spain
 }
+set TZData(:America/Anguilla) $TZData(:America/Port_of_Spain)
@@ -56,177 +56,5 @@ set TZData(:America/Araguaina) {
    {1064368800 -10800 0 BRT}
    {1350788400 -7200 0 BRST}
    {1361066400 -10800 0 BRT}
-    {1382238000 -7200 1 BRST}
-    {1392516000 -10800 0 BRT}
-    {1413687600 -7200 1 BRST}
-    {1424570400 -10800 0 BRT}
-    {1445137200 -7200 1 BRST}
-    {1456020000 -10800 0 BRT}
-    {1476586800 -7200 1 BRST}
-    {1487469600 -10800 0 BRT}
-    {1508036400 -7200 1 BRST}
-    {1518919200 -10800 0 BRT}
-    {1540090800 -7200 1 BRST}
-    {1550368800 -10800 0 BRT}
-    {1571540400 -7200 1 BRST}
-    {1581818400 -10800 0 BRT}
-    {1602990000 -7200 1 BRST}
-    {1613872800 -10800 0 BRT}
-    {1634439600 -7200 1 BRST}
-    {1645322400 -10800 0 BRT}
-    {1665889200 -7200 1 BRST}
-    {1677376800 -10800 0 BRT}
-    {1697338800 -7200 1 BRST}
-    {1708221600 -10800 0 BRT}
-    {1729393200 -7200 1 BRST}
-    {1739671200 -10800 0 BRT}
-    {1760842800 -7200 1 BRST}
-    {1771725600 -10800 0 BRT}
-    {1792292400 -7200 1 BRST}
-    {1803175200 -10800 0 BRT}
-    {1823742000 -7200 1 BRST}
-    {1834624800 -10800 0 BRT}
-    {1855191600 -7200 1 BRST}
-    {1866074400 -10800 0 BRT}
-    {1887246000 -7200 1 BRST}
-    {1897524000 -10800 0 BRT}
-    {1918695600 -7200 1 BRST}
-    {1928973600 -10800 0 BRT}
-    {1950145200 -7200 1 BRST}
-    {1960423200 -10800 0 BRT}
-    {1981594800 -7200 1 BRST}
-    {1992477600 -10800 0 BRT}
-    {2013044400 -7200 1 BRST}
-    {2024532000 -10800 0 BRT}
-    {2044494000 -7200 1 BRST}
-    {2055376800 -10800 0 BRT}
-    {2076548400 -7200 1 BRST}
-    {2086826400 -10800 0 BRT}
-    {2107998000 -7200 1 BRST}
-    {2118880800 -10800 0 BRT}
-    {2139447600 -7200 1 BRST}
-    {2150330400 -10800 0 BRT}
-    {2170897200 -7200 1 BRST}
-    {2181780000 -10800 0 BRT}
-    {2202346800 -7200 1 BRST}
-    {2213229600 -10800 0 BRT}
-    {2234401200 -7200 1 BRST}
-    {2244679200 -10800 0 BRT}
-    {2265850800 -7200 1 BRST}
-    {2276128800 -10800 0 BRT}
-    {2297300400 -7200 1 BRST}
-    {2307578400 -10800 0 BRT}
-    {2328750000 -7200 1 BRST}
-    {2339632800 -10800 0 BRT}
-    {2360199600 -7200 1 BRST}
-    {2371082400 -10800 0 BRT}
-    {2391649200 -7200 1 BRST}
-    {2402532000 -10800 0 BRT}
-    {2423703600 -7200 1 BRST}
-    {2433981600 -10800 0 BRT}
-    {2455153200 -7200 1 BRST}
-    {2465431200 -10800 0 BRT}
-    {2486602800 -7200 1 BRST}
-    {2497485600 -10800 0 BRT}
-    {2518052400 -7200 1 BRST}
-    {2528935200 -10800 0 BRT}
-    {2549502000 -7200 1 BRST}
-    {2560384800 -10800 0 BRT}
-    {2580951600 -7200 1 BRST}
-    {2591834400 -10800 0 BRT}
-    {2613006000 -7200 1 BRST}
-    {2623284000 -10800 0 BRT}
-    {2644455600 -7200 1 BRST}
-    {2654733600 -10800 0 BRT}
-    {2675905200 -7200 1 BRST}
-    {2686788000 -10800 0 BRT}
-    {2707354800 -7200 1 BRST}
-    {2718237600 -10800 0 BRT}
-    {2738804400 -7200 1 BRST}
-    {2749687200 -10800 0 BRT}
-    {2770858800 -7200 1 BRST}
-    {2781136800 -10800 0 BRT}
-    {2802308400 -7200 1 BRST}
-    {2812586400 -10800 0 BRT}
-    {2833758000 -7200 1 BRST}
-    {2844036000 -10800 0 BRT}
-    {2865207600 -7200 1 BRST}
-    {2876090400 -10800 0 BRT}
-    {2896657200 -7200 1 BRST}
-    {2907540000 -10800 0 BRT}
-    {2928106800 -7200 1 BRST}
-    {2938989600 -10800 0 BRT}
-    {2960161200 -7200 1 BRST}
-    {2970439200 -10800 0 BRT}
-    {2991610800 -7200 1 BRST}
-    {3001888800 -10800 0 BRT}
-    {3023060400 -7200 1 BRST}
-    {3033943200 -10800 0 BRT}
-    {3054510000 -7200 1 BRST}
-    {3065392800 -10800 0 BRT}
-    {3085959600 -7200 1 BRST}
-    {3096842400 -10800 0 BRT}
-    {3118014000 -7200 1 BRST}
-    {3128292000 -10800 0 BRT}
-    {3149463600 -7200 1 BRST}
-    {3159741600 -10800 0 BRT}
-    {3180913200 -7200 1 BRST}
-    {3191191200 -10800 0 BRT}
-    {3212362800 -7200 1 BRST}
-    {3223245600 -10800 0 BRT}
-    {3243812400 -7200 1 BRST}
-    {3254695200 -10800 0 BRT}
-    {3275262000 -7200 1 BRST}
-    {3286144800 -10800 0 BRT}
-    {3307316400 -7200 1 BRST}
-    {3317594400 -10800 0 BRT}
-    {3338766000 -7200 1 BRST}
-    {3349044000 -10800 0 BRT}
-    {3370215600 -7200 1 BRST}
-    {3381098400 -10800 0 BRT}
-    {3401665200 -7200 1 BRST}
-    {3412548000 -10800 0 BRT}
-    {3433114800 -7200 1 BRST}
-    {3443997600 -10800 0 BRT}
-    {3464564400 -7200 1 BRST}
-    {3475447200 -10800 0 BRT}
-    {3496618800 -7200 1 BRST}
-    {3506896800 -10800 0 BRT}
-    {3528068400 -7200 1 BRST}
-    {3538346400 -10800 0 BRT}
-    {3559518000 -7200 1 BRST}
-    {3570400800 -10800 0 BRT}
-    {3590967600 -7200 1 BRST}
-    {3601850400 -10800 0 BRT}
-    {3622417200 -7200 1 BRST}
-    {3633300000 -10800 0 BRT}
-    {3654471600 -7200 1 BRST}
-    {3664749600 -10800 0 BRT}
-    {3685921200 -7200 1 BRST}
-    {3696199200 -10800 0 BRT}
-    {3717370800 -7200 1 BRST}
-    {3727648800 -10800 0 BRT}
-    {3748820400 -7200 1 BRST}
-    {3759703200 -10800 0 BRT}
-    {3780270000 -7200 1 BRST}
-    {3791152800 -10800 0 BRT}
-    {3811719600 -7200 1 BRST}
-    {3822602400 -10800 0 BRT}
-    {3843774000 -7200 1 BRST}
-    {3854052000 -10800 0 BRT}
-    {3875223600 -7200 1 BRST}
-    {3885501600 -10800 0 BRT}
-    {3906673200 -7200 1 BRST}
-    {3917556000 -10800 0 BRT}
-    {3938122800 -7200 1 BRST}
-    {3949005600 -10800 0 BRT}
-    {3969572400 -7200 1 BRST}
-    {3980455200 -10800 0 BRT}
-    {4001626800 -7200 1 BRST}
-    {4011904800 -10800 0 BRT}
-    {4033076400 -7200 1 BRST}
-    {4043354400 -10800 0 BRT}
-    {4064526000 -7200 1 BRST}
-    {4074804000 -10800 0 BRT}
-    {4095975600 -7200 1 BRST}
+    {1378000800 -10800 0 BRT}
 }
@@ -64,5 +64,5 @@ set TZData(:America/Argentina/San_Luis) {
    {1205031600 -14400 0 WART}
    {1223784000 -10800 1 WARST}
    {1236481200 -14400 0 WART}
-    {1255233600 -10800 1 WARST}
+    {1255233600 -10800 0 ART}
 }
@@ -1,7 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:America/Aruba) {
-    {-9223372036854775808 -16824 0 LMT}
-    {-1826738376 -16200 0 ANT}
-    {-157750200 -14400 0 AST}
+if {![info exists TZData(America/Curacao)]} {
+    LoadTimeZoneFile America/Curacao
 }
+set TZData(:America/Aruba) $TZData(:America/Curacao)
@@ -83,178 +83,177 @@ set TZData(:America/Asuncion) {
    {1333854000 -14400 0 PYT}
    {1349582400 -10800 1 PYST}
    {1364094000 -14400 0 PYT}
-    {1365912000 -14400 0 PYT}
    {1381032000 -10800 1 PYST}
-    {1397358000 -14400 0 PYT}
+    {1395543600 -14400 0 PYT}
    {1412481600 -10800 1 PYST}
-    {1428807600 -14400 0 PYT}
+    {1426993200 -14400 0 PYT}
    {1443931200 -10800 1 PYST}
-    {1460257200 -14400 0 PYT}
+    {1459047600 -14400 0 PYT}
    {1475380800 -10800 1 PYST}
-    {1491706800 -14400 0 PYT}
+    {1490497200 -14400 0 PYT}
    {1506830400 -10800 1 PYST}
-    {1523156400 -14400 0 PYT}
+    {1521946800 -14400 0 PYT}
    {1538884800 -10800 1 PYST}
-    {1555210800 -14400 0 PYT}
+    {1553396400 -14400 0 PYT}
    {1570334400 -10800 1 PYST}
-    {1586660400 -14400 0 PYT}
+    {1584846000 -14400 0 PYT}
    {1601784000 -10800 1 PYST}
-    {1618110000 -14400 0 PYT}
+    {1616900400 -14400 0 PYT}
    {1633233600 -10800 1 PYST}
-    {1649559600 -14400 0 PYT}
+    {1648350000 -14400 0 PYT}
    {1664683200 -10800 1 PYST}
-    {1681009200 -14400 0 PYT}
+    {1679799600 -14400 0 PYT}
    {1696132800 -10800 1 PYST}
-    {1713063600 -14400 0 PYT}
+    {1711249200 -14400 0 PYT}
    {1728187200 -10800 1 PYST}
-    {1744513200 -14400 0 PYT}
+    {1742698800 -14400 0 PYT}
    {1759636800 -10800 1 PYST}
-    {1775962800 -14400 0 PYT}
+    {1774148400 -14400 0 PYT}
    {1791086400 -10800 1 PYST}
-    {1807412400 -14400 0 PYT}
+    {1806202800 -14400 0 PYT}
    {1822536000 -10800 1 PYST}
-    {1838862000 -14400 0 PYT}
+    {1837652400 -14400 0 PYT}
    {1853985600 -10800 1 PYST}
-    {1870311600 -14400 0 PYT}
+    {1869102000 -14400 0 PYT}
    {1886040000 -10800 1 PYST}
-    {1902366000 -14400 0 PYT}
+    {1900551600 -14400 0 PYT}
    {1917489600 -10800 1 PYST}
-    {1933815600 -14400 0 PYT}
+    {1932001200 -14400 0 PYT}
    {1948939200 -10800 1 PYST}
-    {1965265200 -14400 0 PYT}
+    {1964055600 -14400 0 PYT}
    {1980388800 -10800 1 PYST}
-    {1996714800 -14400 0 PYT}
+    {1995505200 -14400 0 PYT}
    {2011838400 -10800 1 PYST}
-    {2028164400 -14400 0 PYT}
+    {2026954800 -14400 0 PYT}
    {2043288000 -10800 1 PYST}
-    {2059614000 -14400 0 PYT}
+    {2058404400 -14400 0 PYT}
    {2075342400 -10800 1 PYST}
-    {2091668400 -14400 0 PYT}
+    {2089854000 -14400 0 PYT}
    {2106792000 -10800 1 PYST}
-    {2123118000 -14400 0 PYT}
+    {2121303600 -14400 0 PYT}
    {2138241600 -10800 1 PYST}
-    {2154567600 -14400 0 PYT}
+    {2153358000 -14400 0 PYT}
    {2169691200 -10800 1 PYST}
-    {2186017200 -14400 0 PYT}
+    {2184807600 -14400 0 PYT}
    {2201140800 -10800 1 PYST}
-    {2217466800 -14400 0 PYT}
+    {2216257200 -14400 0 PYT}
    {2233195200 -10800 1 PYST}
-    {2249521200 -14400 0 PYT}
+    {2247706800 -14400 0 PYT}
    {2264644800 -10800 1 PYST}
-    {2280970800 -14400 0 PYT}
+    {2279156400 -14400 0 PYT}
    {2296094400 -10800 1 PYST}
-    {2312420400 -14400 0 PYT}
+    {2310606000 -14400 0 PYT}
    {2327544000 -10800 1 PYST}
-    {2343870000 -14400 0 PYT}
+    {2342660400 -14400 0 PYT}
    {2358993600 -10800 1 PYST}
-    {2375319600 -14400 0 PYT}
+    {2374110000 -14400 0 PYT}
    {2390443200 -10800 1 PYST}
-    {2406769200 -14400 0 PYT}
+    {2405559600 -14400 0 PYT}
    {2422497600 -10800 1 PYST}
-    {2438823600 -14400 0 PYT}
+    {2437009200 -14400 0 PYT}
    {2453947200 -10800 1 PYST}
-    {2470273200 -14400 0 PYT}
+    {2468458800 -14400 0 PYT}
    {2485396800 -10800 1 PYST}
-    {2501722800 -14400 0 PYT}
+    {2500513200 -14400 0 PYT}
    {2516846400 -10800 1 PYST}
-    {2533172400 -14400 0 PYT}
+    {2531962800 -14400 0 PYT}
    {2548296000 -10800 1 PYST}
-    {2564622000 -14400 0 PYT}
+    {2563412400 -14400 0 PYT}
    {2579745600 -10800 1 PYST}
-    {2596676400 -14400 0 PYT}
+    {2594862000 -14400 0 PYT}
    {2611800000 -10800 1 PYST}
-    {2628126000 -14400 0 PYT}
+    {2626311600 -14400 0 PYT}
    {2643249600 -10800 1 PYST}
-    {2659575600 -14400 0 PYT}
+    {2657761200 -14400 0 PYT}
    {2674699200 -10800 1 PYST}
-    {2691025200 -14400 0 PYT}
+    {2689815600 -14400 0 PYT}
    {2706148800 -10800 1 PYST}
-    {2722474800 -14400 0 PYT}
+    {2721265200 -14400 0 PYT}
    {2737598400 -10800 1 PYST}
-    {2753924400 -14400 0 PYT}
+    {2752714800 -14400 0 PYT}
    {2769652800 -10800 1 PYST}
-    {2785978800 -14400 0 PYT}
+    {2784164400 -14400 0 PYT}
    {2801102400 -10800 1 PYST}
-    {2817428400 -14400 0 PYT}
+    {2815614000 -14400 0 PYT}
    {2832552000 -10800 1 PYST}
-    {2848878000 -14400 0 PYT}
+    {2847668400 -14400 0 PYT}
    {2864001600 -10800 1 PYST}
-    {2880327600 -14400 0 PYT}
+    {2879118000 -14400 0 PYT}
    {2895451200 -10800 1 PYST}
-    {2911777200 -14400 0 PYT}
+    {2910567600 -14400 0 PYT}
    {2926900800 -10800 1 PYST}
-    {2943226800 -14400 0 PYT}
+    {2942017200 -14400 0 PYT}
    {2958955200 -10800 1 PYST}
-    {2975281200 -14400 0 PYT}
+    {2973466800 -14400 0 PYT}
    {2990404800 -10800 1 PYST}
-    {3006730800 -14400 0 PYT}
+    {3004916400 -14400 0 PYT}
    {3021854400 -10800 1 PYST}
-    {3038180400 -14400 0 PYT}
+    {3036970800 -14400 0 PYT}
    {3053304000 -10800 1 PYST}
-    {3069630000 -14400 0 PYT}
+    {3068420400 -14400 0 PYT}
    {3084753600 -10800 1 PYST}
-    {3101079600 -14400 0 PYT}
+    {3099870000 -14400 0 PYT}
    {3116808000 -10800 1 PYST}
-    {3133134000 -14400 0 PYT}
+    {3131319600 -14400 0 PYT}
    {3148257600 -10800 1 PYST}
-    {3164583600 -14400 0 PYT}
+    {3162769200 -14400 0 PYT}
    {3179707200 -10800 1 PYST}
-    {3196033200 -14400 0 PYT}
+    {3194218800 -14400 0 PYT}
    {3211156800 -10800 1 PYST}
-    {3227482800 -14400 0 PYT}
+    {3226273200 -14400 0 PYT}
    {3242606400 -10800 1 PYST}
-    {3258932400 -14400 0 PYT}
+    {3257722800 -14400 0 PYT}
    {3274056000 -10800 1 PYST}
-    {3290382000 -14400 0 PYT}
+    {3289172400 -14400 0 PYT}
    {3306110400 -10800 1 PYST}
-    {3322436400 -14400 0 PYT}
+    {3320622000 -14400 0 PYT}
    {3337560000 -10800 1 PYST}
-    {3353886000 -14400 0 PYT}
+    {3352071600 -14400 0 PYT}
    {3369009600 -10800 1 PYST}
-    {3385335600 -14400 0 PYT}
+    {3384126000 -14400 0 PYT}
    {3400459200 -10800 1 PYST}
-    {3416785200 -14400 0 PYT}
+    {3415575600 -14400 0 PYT}
    {3431908800 -10800 1 PYST}
-    {3448234800 -14400 0 PYT}
+    {3447025200 -14400 0 PYT}
    {3463358400 -10800 1 PYST}
-    {3480289200 -14400 0 PYT}
+    {3478474800 -14400 0 PYT}
    {3495412800 -10800 1 PYST}
-    {3511738800 -14400 0 PYT}
+    {3509924400 -14400 0 PYT}
    {3526862400 -10800 1 PYST}
-    {3543188400 -14400 0 PYT}
+    {3541374000 -14400 0 PYT}
    {3558312000 -10800 1 PYST}
-    {3574638000 -14400 0 PYT}
+    {3573428400 -14400 0 PYT}
    {3589761600 -10800 1 PYST}
-    {3606087600 -14400 0 PYT}
+    {3604878000 -14400 0 PYT}
    {3621211200 -10800 1 PYST}
-    {3637537200 -14400 0 PYT}
+    {3636327600 -14400 0 PYT}
    {3653265600 -10800 1 PYST}
-    {3669591600 -14400 0 PYT}
+    {3667777200 -14400 0 PYT}
    {3684715200 -10800 1 PYST}
-    {3701041200 -14400 0 PYT}
+    {3699226800 -14400 0 PYT}
    {3716164800 -10800 1 PYST}
-    {3732490800 -14400 0 PYT}
+    {3731281200 -14400 0 PYT}
    {3747614400 -10800 1 PYST}
-    {3763940400 -14400 0 PYT}
+    {3762730800 -14400 0 PYT}
    {3779064000 -10800 1 PYST}
-    {3795390000 -14400 0 PYT}
+    {3794180400 -14400 0 PYT}
    {3810513600 -10800 1 PYST}
-    {3826839600 -14400 0 PYT}
+    {3825630000 -14400 0 PYT}
    {3842568000 -10800 1 PYST}
-    {3858894000 -14400 0 PYT}
+    {3857079600 -14400 0 PYT}
    {3874017600 -10800 1 PYST}
-    {3890343600 -14400 0 PYT}
+    {3888529200 -14400 0 PYT}
    {3905467200 -10800 1 PYST}
-    {3921793200 -14400 0 PYT}
+    {3920583600 -14400 0 PYT}
    {3936916800 -10800 1 PYST}
-    {3953242800 -14400 0 PYT}
+    {3952033200 -14400 0 PYT}
    {3968366400 -10800 1 PYST}
-    {3984692400 -14400 0 PYT}
+    {3983482800 -14400 0 PYT}
    {4000420800 -10800 1 PYST}
-    {4016746800 -14400 0 PYT}
+    {4014932400 -14400 0 PYT}
    {4031870400 -10800 1 PYST}
-    {4048196400 -14400 0 PYT}
+    {4046382000 -14400 0 PYT}
    {4063320000 -10800 1 PYST}
-    {4079646000 -14400 0 PYT}
+    {4077831600 -14400 0 PYT}
    {4094769600 -10800 1 PYST}
 }
@@ -2,6 +2,6 @@

 set TZData(:America/Cayman) {
    {-9223372036854775808 -19532 0 LMT}
-    {-2524502068 -18432 0 KMT}
-    {-1827687168 -18000 0 EST}
+    {-2524502068 -18431 0 KMT}
+    {-1827687169 -18000 0 EST}
 }
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:America/Dominica) {
-    {-9223372036854775808 -14736 0 LMT}
-    {-1846266804 -14400 0 AST}
+if {![info exists TZData(America/Port_of_Spain)]} {
+    LoadTimeZoneFile America/Port_of_Spain
 }
+set TZData(:America/Dominica) $TZData(:America/Port_of_Spain)
@@ -2,8 +2,8 @@

 set TZData(:America/Grand_Turk) {
    {-9223372036854775808 -17072 0 LMT}
-    {-2524504528 -18432 0 KMT}
-    {-1827687168 -18000 0 EST}
+    {-2524504528 -18431 0 KMT}
+    {-1827687169 -18000 0 EST}
    {294217200 -14400 1 EDT}
    {309938400 -18000 0 EST}
    {325666800 -14400 1 EDT}
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:America/Grenada) {
-    {-9223372036854775808 -14820 0 LMT}
-    {-1846266780 -14400 0 AST}
+if {![info exists TZData(America/Port_of_Spain)]} {
+    LoadTimeZoneFile America/Port_of_Spain
 }
+set TZData(:America/Grenada) $TZData(:America/Port_of_Spain)
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:America/Guadeloupe) {
-    {-9223372036854775808 -14768 0 LMT}
-    {-1848254032 -14400 0 AST}
+if {![info exists TZData(America/Port_of_Spain)]} {
+    LoadTimeZoneFile America/Port_of_Spain
 }
+set TZData(:America/Guadeloupe) $TZData(:America/Port_of_Spain)
@@ -1,9 +1,9 @@
 # created by tools/tclZIC.tcl - do not edit

 set TZData(:America/Jamaica) {
-    {-9223372036854775808 -18432 0 LMT}
-    {-2524503168 -18432 0 KMT}
-    {-1827687168 -18000 0 EST}
+    {-9223372036854775808 -18431 0 LMT}
+    {-2524503169 -18431 0 KMT}
+    {-1827687169 -18000 0 EST}
    {136364400 -14400 0 EDT}
    {152085600 -18000 0 EST}
    {162370800 -14400 1 EDT}
@@ -1,5 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-if {![info exists TZData(America/Guadeloupe)]} {
-    LoadTimeZoneFile America/Guadeloupe
+if {![info exists TZData(America/Port_of_Spain)]} {
+    LoadTimeZoneFile America/Port_of_Spain
 }
-set TZData(:America/Marigot) $TZData(:America/Guadeloupe)
+set TZData(:America/Marigot) $TZData(:America/Port_of_Spain)
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:America/Montserrat) {
-    {-9223372036854775808 -14932 0 LMT}
-    {-1846266608 -14400 0 AST}
+if {![info exists TZData(America/Port_of_Spain)]} {
+    LoadTimeZoneFile America/Port_of_Spain
 }
+set TZData(:America/Montserrat) $TZData(:America/Port_of_Spain)
@@ -1,5 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-if {![info exists TZData(America/Guadeloupe)]} {
-    LoadTimeZoneFile America/Guadeloupe
+if {![info exists TZData(America/Port_of_Spain)]} {
+    LoadTimeZoneFile America/Port_of_Spain
 }
-set TZData(:America/St_Barthelemy) $TZData(:America/Guadeloupe)
+set TZData(:America/St_Barthelemy) $TZData(:America/Port_of_Spain)
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:America/St_Kitts) {
-    {-9223372036854775808 -15052 0 LMT}
-    {-1825098548 -14400 0 AST}
+if {![info exists TZData(America/Port_of_Spain)]} {
+    LoadTimeZoneFile America/Port_of_Spain
 }
+set TZData(:America/St_Kitts) $TZData(:America/Port_of_Spain)
@@ -1,7 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:America/St_Lucia) {
-    {-9223372036854775808 -14640 0 LMT}
-    {-2524506960 -14640 0 CMT}
-    {-1830369360 -14400 0 AST}
+if {![info exists TZData(America/Port_of_Spain)]} {
+    LoadTimeZoneFile America/Port_of_Spain
 }
+set TZData(:America/St_Lucia) $TZData(:America/Port_of_Spain)
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:America/St_Thomas) {
-    {-9223372036854775808 -15584 0 LMT}
-    {-1846266016 -14400 0 AST}
+if {![info exists TZData(America/Port_of_Spain)]} {
+    LoadTimeZoneFile America/Port_of_Spain
 }
+set TZData(:America/St_Thomas) $TZData(:America/Port_of_Spain)
@@ -1,7 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:America/St_Vincent) {
-    {-9223372036854775808 -14696 0 LMT}
-    {-2524506904 -14696 0 KMT}
-    {-1830369304 -14400 0 AST}
+if {![info exists TZData(America/Port_of_Spain)]} {
+    LoadTimeZoneFile America/Port_of_Spain
 }
+set TZData(:America/St_Vincent) $TZData(:America/Port_of_Spain)
@@ -1,6 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:America/Tortola) {
-    {-9223372036854775808 -15508 0 LMT}
-    {-1846266092 -14400 0 AST}
+if {![info exists TZData(America/Port_of_Spain)]} {
+    LoadTimeZoneFile America/Port_of_Spain
 }
+set TZData(:America/Tortola) $TZData(:America/Port_of_Spain)
@@ -1,5 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-if {![info exists TZData(America/St_Thomas)]} {
-    LoadTimeZoneFile America/St_Thomas
+if {![info exists TZData(America/Port_of_Spain)]} {
+    LoadTimeZoneFile America/Port_of_Spain
 }
-set TZData(:America/Virgin) $TZData(:America/St_Thomas)
+set TZData(:America/Virgin) $TZData(:America/Port_of_Spain)
@@ -2,16 +2,11 @@

 set TZData(:Antarctica/Macquarie) {
    {-9223372036854775808 0 0 zzz}
-    {-1861920000 36000 0 EST}
+    {-2214259200 36000 0 EST}
    {-1680508800 39600 1 EST}
    {-1669892400 39600 0 EST}
    {-1665392400 36000 0 EST}
-    {-883641600 39600 1 EST}
-    {-876128400 36000 0 EST}
-    {-860400000 39600 1 EST}
-    {-844678800 36000 0 EST}
-    {-828345600 39600 1 EST}
-    {-813229200 36000 0 EST}
+    {-1601719200 0 0 zzz}
    {-94730400 36000 0 EST}
    {-71136000 39600 1 EST}
    {-55411200 36000 0 EST}
@@ -1,257 +1,5 @@
 # created by tools/tclZIC.tcl - do not edit
-
-set TZData(:Antarctica/McMurdo) {
-    {-9223372036854775808 0 0 zzz}
-    {-441849600 43200 0 NZST}
-    {152632800 46800 1 NZDT}
-    {162309600 43200 0 NZST}
-    {183477600 46800 1 NZDT}
-    {194968800 43200 0 NZST}
-    {215532000 46800 1 NZDT}
-    {226418400 43200 0 NZST}
-    {246981600 46800 1 NZDT}
-    {257868000 43200 0 NZST}
-    {278431200 46800 1 NZDT}
-    {289317600 43200 0 NZST}
-    {309880800 46800 1 NZDT}
-    {320767200 43200 0 NZST}
-    {341330400 46800 1 NZDT}
-    {352216800 43200 0 NZST}
-    {372780000 46800 1 NZDT}
-    {384271200 43200 0 NZST}
-    {404834400 46800 1 NZDT}
-    {415720800 43200 0 NZST}
-    {436284000 46800 1 NZDT}
-    {447170400 43200 0 NZST}
-    {467733600 46800 1 NZDT}
-    {478620000 43200 0 NZST}
-    {499183200 46800 1 NZDT}
-    {510069600 43200 0 NZST}
-    {530632800 46800 1 NZDT}
-    {541519200 43200 0 NZST}
-    {562082400 46800 1 NZDT}
-    {573573600 43200 0 NZST}
-    {594136800 46800 1 NZDT}
-    {605023200 43200 0 NZST}
-    {623772000 46800 1 NZDT}
-    {637682400 43200 0 NZST}
-    {655221600 46800 1 NZDT}
-    {669132000 43200 0 NZST}
-    {686671200 46800 1 NZDT}
-    {700581600 43200 0 NZST}
-    {718120800 46800 1 NZDT}
-    {732636000 43200 0 NZST}
-    {749570400 46800 1 NZDT}
-    {764085600 43200 0 NZST}
-    {781020000 46800 1 NZDT}
-    {795535200 43200 0 NZST}
-    {812469600 46800 1 NZDT}
-    {826984800 43200 0 NZST}
-    {844524000 46800 1 NZDT}
-    {858434400 43200 0 NZST}
-    {875973600 46800 1 NZDT}
-    {889884000 43200 0 NZST}
-    {907423200 46800 1 NZDT}
-    {921938400 43200 0 NZST}
-    {938872800 46800 1 NZDT}
-    {953388000 43200 0 NZST}
-    {970322400 46800 1 NZDT}
-    {984837600 43200 0 NZST}
-    {1002376800 46800 1 NZDT}
-    {1016287200 43200 0 NZST}
-    {1033826400 46800 1 NZDT}
-    {1047736800 43200 0 NZST}
-    {1065276000 46800 1 NZDT}
-    {1079791200 43200 0 NZST}
-    {1096725600 46800 1 NZDT}
-    {1111240800 43200 0 NZST}
-    {1128175200 46800 1 NZDT}
-    {1142690400 43200 0 NZST}
-    {1159624800 46800 1 NZDT}
-    {1174140000 43200 0 NZST}
-    {1191074400 46800 1 NZDT}
-    {1207404000 43200 0 NZST}
-    {1222524000 46800 1 NZDT}
-    {1238853600 43200 0 NZST}
-    {1253973600 46800 1 NZDT}
-    {1270303200 43200 0 NZST}
-    {1285423200 46800 1 NZDT}
-    {1301752800 43200 0 NZST}
-    {1316872800 46800 1 NZDT}
-    {1333202400 43200 0 NZST}
-    {1348927200 46800 1 NZDT}
-    {1365256800 43200 0 NZST}
-    {1380376800 46800 1 NZDT}
-    {1396706400 43200 0 NZST}
-    {1411826400 46800 1 NZDT}
-    {1428156000 43200 0 NZST}
-    {1443276000 46800 1 NZDT}
-    {1459605600 43200 0 NZST}
-    {1474725600 46800 1 NZDT}
-    {1491055200 43200 0 NZST}
-    {1506175200 46800 1 NZDT}
-    {1522504800 43200 0 NZST}
-    {1538229600 46800 1 NZDT}
-    {1554559200 43200 0 NZST}
-    {1569679200 46800 1 NZDT}
-    {1586008800 43200 0 NZST}
-    {1601128800 46800 1 NZDT}
-    {1617458400 43200 0 NZST}
-    {1632578400 46800 1 NZDT}
-    {1648908000 43200 0 NZST}
-    {1664028000 46800 1 NZDT}
-    {1680357600 43200 0 NZST}
-    {1695477600 46800 1 NZDT}
-    {1712412000 43200 0 NZST}
-    {1727532000 46800 1 NZDT}
-    {1743861600 43200 0 NZST}
-    {1758981600 46800 1 NZDT}
-    {1775311200 43200 0 NZST}
-    {1790431200 46800 1 NZDT}
-    {1806760800 43200 0 NZST}
-    {1821880800 46800 1 NZDT}
-    {1838210400 43200 0 NZST}
-    {1853330400 46800 1 NZDT}
-    {1869660000 43200 0 NZST}
-    {1885384800 46800 1 NZDT}
-    {1901714400 43200 0 NZST}
-    {1916834400 46800 1 NZDT}
-    {1933164000 43200 0 NZST}
-    {1948284000 46800 1 NZDT}
-    {1964613600 43200 0 NZST}
-    {1979733600 46800 1 NZDT}
-    {1996063200 43200 0 NZST}
-    {2011183200 46800 1 NZDT}
-    {2027512800 43200 0 NZST}
-    {2042632800 46800 1 NZDT}
-    {2058962400 43200 0 NZST}
-    {2074687200 46800 1 NZDT}
-    {2091016800 43200 0 NZST}
-    {2106136800 46800 1 NZDT}
-    {2122466400 43200 0 NZST}
-    {2137586400 46800 1 NZDT}
-    {2153916000 43200 0 NZST}
-    {2169036000 46800 1 NZDT}
-    {2185365600 43200 0 NZST}
-    {2200485600 46800 1 NZDT}
-    {2216815200 43200 0 NZST}
-    {2232540000 46800 1 NZDT}
-    {2248869600 43200 0 NZST}
-    {2263989600 46800 1 NZDT}
-    {2280319200 43200 0 NZST}
-    {2295439200 46800 1 NZDT}
-    {2311768800 43200 0 NZST}
-    {2326888800 46800 1 NZDT}
-    {2343218400 43200 0 NZST}
-    {2358338400 46800 1 NZDT}
-    {2374668000 43200 0 NZST}
-    {2389788000 46800 1 NZDT}
-    {2406117600 43200 0 NZST}
-    {2421842400 46800 1 NZDT}
-    {2438172000 43200 0 NZST}
-    {2453292000 46800 1 NZDT}
-    {2469621600 43200 0 NZST}
-    {2484741600 46800 1 NZDT}
-    {2501071200 43200 0 NZST}
-    {2516191200 46800 1 NZDT}
-    {2532520800 43200 0 NZST}
-    {2547640800 46800 1 NZDT}
-    {2563970400 43200 0 NZST}
-    {2579090400 46800 1 NZDT}
-    {2596024800 43200 0 NZST}
-    {2611144800 46800 1 NZDT}
-    {2627474400 43200 0 NZST}
-    {2642594400 46800 1 NZDT}
-    {2658924000 43200 0 NZST}
-    {2674044000 46800 1 NZDT}
-    {2690373600 43200 0 NZST}
-    {2705493600 46800 1 NZDT}
-    {2721823200 43200 0 NZST}
-    {2736943200 46800 1 NZDT}
-    {2753272800 43200 0 NZST}
-    {2768997600 46800 1 NZDT}
-    {2785327200 43200 0 NZST}
-    {2800447200 46800 1 NZDT}
-    {2816776800 43200 0 NZST}
-    {2831896800 46800 1 NZDT}
-    {2848226400 43200 0 NZST}
-    {2863346400 46800 1 NZDT}
-    {2879676000 43200 0 NZST}
-    {2894796000 46800 1 NZDT}
-    {2911125600 43200 0 NZST}
-    {2926245600 46800 1 NZDT}
-    {2942575200 43200 0 NZST}
-    {2958300000 46800 1 NZDT}
-    {2974629600 43200 0 NZST}
-    {2989749600 46800 1 NZDT}
-    {3006079200 43200 0 NZST}
-    {3021199200 46800 1 NZDT}
-    {3037528800 43200 0 NZST}
-    {3052648800 46800 1 NZDT}
-    {3068978400 43200 0 NZST}
-    {3084098400 46800 1 NZDT}
-    {3100428000 43200 0 NZST}
-    {3116152800 46800 1 NZDT}
-    {3132482400 43200 0 NZST}
-    {3147602400 46800 1 NZDT}
-    {3163932000 43200 0 NZST}
-    {3179052000 46800 1 NZDT}
-    {3195381600 43200 0 NZST}
-    {3210501600 46800 1 NZDT}
-    {3226831200 43200 0 NZST}
-    {3241951200 46800 1 NZDT}
-    {3258280800 43200 0 NZST}
-    {3273400800 46800 1 NZDT}
-    {3289730400 43200 0 NZST}
-    {3305455200 46800 1 NZDT}
-    {3321784800 43200 0 NZST}
-    {3336904800 46800 1 NZDT}
-    {3353234400 43200 0 NZST}
-    {3368354400 46800 1 NZDT}
-    {3384684000 43200 0 NZST}
-    {3399804000 46800 1 NZDT}
-    {3416133600 43200 0 NZST}
-    {3431253600 46800 1 NZDT}
-    {3447583200 43200 0 NZST}
-    {3462703200 46800 1 NZDT}
-    {3479637600 43200 0 NZST}
-    {3494757600 46800 1 NZDT}
-    {3511087200 43200 0 NZST}
-    {3526207200 46800 1 NZDT}
-    {3542536800 43200 0 NZST}
-    {3557656800 46800 1 NZDT}
-    {3573986400 43200 0 NZST}
-    {3589106400 46800 1 NZDT}
-    {3605436000 43200 0 NZST}
-    {3620556000 46800 1 NZDT}
-    {3636885600 43200 0 NZST}
-    {3652610400 46800 1 NZDT}
-    {3668940000 43200 0 NZST}
-    {3684060000 46800 1 NZDT}
-    {3700389600 43200 0 NZST}
-    {3715509600 46800 1 NZDT}
-    {3731839200 43200 0 NZST}
-    {3746959200 46800 1 NZDT}
-    {3763288800 43200 0 NZST}
-    {3778408800 46800 1 NZDT}
-    {3794738400 43200 0 NZST}
-    {3809858400 46800 1 NZDT}
-    {3826188000 43200 0 NZST}
-    {3841912800 46800 1 NZDT}
-    {3858242400 43200 0 NZST}
-    {3873362400 46800 1 NZDT}
-    {3889692000 43200 0 NZST}
-    {3904812000 46800 1 NZDT}
-    {3921141600 43200 0 NZST}
-    {3936261600 46800 1 NZDT}
-    {3952591200 43200 0 NZST}
-    {3967711200 46800 1 NZDT}
-    {3984040800 43200 0 NZST}
-    {3999765600 46800 1 NZDT}
-    {4016095200 43200 0 NZST}
-    {4031215200 46800 1 NZDT}
-    {4047544800 43200 0 NZST}
-    {4062664800 46800 1 NZDT}
-    {4078994400 43200 0 NZST}
-    {4094114400 46800 1 NZDT}
+if {![info exists TZData(Pacific/Auckland)]} {
+    LoadTimeZoneFile Pacific/Auckland
 }
+set TZData(:Antarctica/McMurdo) $TZData(:Pacific/Auckland)
--- a/Show More
+++ b/Show More