                         * Changes to Extended Tcl *
===============================================================================
13 Nov 91: Extended Tcl 6.1a released
===============================================================================
20 Nov 91: 
  o Fixed use of invalid variable when reporting an error in 
    test/unixcmds.test.
  o Changed temporary files names so they are 14 characters or less in 
    test/chmod.test.
  o Changed TCL_MAN_SECTION for SCO Unix to be "TCL" instead of "tcl".
  o Modified src/main.c to be independent of the internal Tcl include files.
  o Changed ar to not use the 'u' option in makes.
  o For ucbsrc, delete the objects explicitly from libtcl.a, since sometimes
    the modified version tclBasic.o was not replacing the standard version.
-------------------------------------------------------------------------------
29 Nov 91:
  o Added configuration section for older versions of SunOS.
  o Added an strtoul replacement for HP/UX, since their version accepts
    negative numbers.
  o Converted the global tclxPatchlevel from a string to an int.
  o Modified test for chmod +t, since this will actually change the file mode
    if run as root.  Changed chown tests to compare file group id against the 
    effective group id, in case tests are run with the effective group id
    changed.
  o Fixed bad error message from id command when user or group name does not
    exist.
  o Made tclSignalReceived a external flag that can be checked by C code to
    determine if signal a signal is pending.
  o Corrected the spelling of the variable 'signalReceived' that is set when
    trap code is by a signal (signal command). (*POTENTIAL INCOMPATIBILITY*)
  o Changed code in src/createExtd.c that is supposed to force math error to
    be included so that an optimizer doesn't decide to throw away the external
    reference.
  o Modified commandloop to reset command buffer when a signal is received,
    enabling interrupting the input of multi-line commands.
  o Fixed problem with math error tests were pow did not return an error on
    some systems.
-------------------------------------------------------------------------------
29 Nov 91: tests/all, tests/fmath.test, tests/math.test, tests/loop.test,
           tests/filescan.test
  o Converted to current test support routines: fmath.test, math.test and
    loop.test.
  o Removed tests/testutil.test, as its no longer needed.
-------------------------------------------------------------------------------
30 Nov 91:
  o Made detection of _tolower and _toupper automatic, instead of a 
    configuration option.
-------------------------------------------------------------------------------
 2 Dec 91:
  o Updated showproc.tcl with Lance Ellinghouse's improved version that dumps
    default argument info.  
-------------------------------------------------------------------------------
 5 Dec 91:
  o Fixed bug with doing a keylget on an empty string.
-------------------------------------------------------------------------------
 4 Jan 92:
  o Fixed BinSearch so it doesn't overwrite the error returned by
    TclGetOpenFile with another error message.
-------------------------------------------------------------------------------
 5 Jan 92:
  o Fixed link and unlink commands to do tilde substitution.
-------------------------------------------------------------------------------
 9 Jan 92:
  o Fixed problem with Boyer-Moore optimization causing scanfile to fail
    matches when the regular expression contains ORs (|).
-------------------------------------------------------------------------------
 10 Jan 92:
  o Convert execvp to execl to support passing arguments as a list, rather than
    a series of parameters.  Added a execvp to the Tcl procedure library to
    provide backwards compatibility.
-------------------------------------------------------------------------------
 11 Jan 92: man/TclX.man
  o Changes to make some manual sections more readable.
-------------------------------------------------------------------------------
 13 Feb 92:
  o Added `procs' option to cmdtrace that traces procedure calls only.
  o Added `-nocomplain' flag to unlink command.
  o Changed package index structure so the file name is not included in the
    index file.
  o Added support for optional #@packend, to mark end of packages.
  o Merged in changes to support A/UX 2.01 (supplied by Parag Patel)
-------------------------------------------------------------------------------
 15 Feb 92:
  o Modified keylget to return a list of keyes in a keyed list if no field
    name is spefieied.  Added Tcl_GetKeyedListKeys to support this operation.
  o Added keyed list sub field support (i.e. FOO.BAZ).
  o Added type attribute to the values returned by the fstat command to give
    it the same functionality as the Tcl6.2 file command.
  o Update help files based on the ucb manual pages and added help for
    standard built-in variables.
-------------------------------------------------------------------------------
 16 Feb 92:
  o Modified install script to unlink manual pages before it links to new ones.
-------------------------------------------------------------------------------
 23 Feb 92:
  o Moved the external declaration of variables set by the startup code
    to tclExtended.h.
  o Made startup more modular to support applications like Tk.  Made setting
    of globals variables for infox in the main optional.  If not set, start up
    sets them to a default.  (All backwards compatible).
-------------------------------------------------------------------------------
  2 Mar 92:
  o Added -sym option to link command to support symbolic links.
-------------------------------------------------------------------------------
  3 Mar 92:
  o Modified keylset to take multiple keyword/value pairs.
  o Moved all tcl++.h vararg routines into tcl++.C, since inlined varargs
    don't work right with some compilers.
-------------------------------------------------------------------------------
  4 Mar 92:
  o Added catopen, catgets and catclose commands.
-------------------------------------------------------------------------------
 11 Mar 92:
  o Combined TclShell.man and tcl.tlib.man with TclX.man to put all
    documentation for Tcl language programing in one manual page.
-------------------------------------------------------------------------------
 13 Mar 92:
  o Moved configuration from the toplevel Makefile to Config.mk, which is now
    included by all Makefiles and parsed by the install script.
  o Changed all calls to cc use the $(CC) macro.
-------------------------------------------------------------------------------
 19 Mar 92:
  o Fixed bug in command loop were certain set commands were valid commands,
    but invalid lists.
-------------------------------------------------------------------------------
 24 Mar 92:
  o Added support for numBytes or nonewline to `read_file' procedure.
  o Added lgets command to read lists from a file, included embedded newlines.
===============================================================================
 4 Mar 92: Extended Tcl 6.2b released
===============================================================================
 7 Apr 92: 
   o Fixed bug were no error message was returned with the TCLDEFAULT file
     could not be found.
-------------------------------------------------------------------------------
13 Arp 92: 
   o Moved definition of CLK_TCK if its undefined until after the place were
     time.h might be included in tclExtdInt.h.
-------------------------------------------------------------------------------
15 Apr 92:
   o Added TCL_TIMEZONE_VAR option for systems that don't return the timezone
     offset in `struct tm'.
   o Deleted test from tests/clock.test that returned a different result in
     a different timezone.
-------------------------------------------------------------------------------
27 Apr 92:
   o Fixed bug in fstat that caused the keyed list get of all status data
     to return invalid data.
-------------------------------------------------------------------------------
 1 May 92:
   o Moved setting of prompt hooks before source ~/.tclrc so that prompts can
     be modified in the .~/tclrc.
-------------------------------------------------------------------------------
 3 May 92:
   o Changed src/Makefile to use CCPLUSINCL.
   o Fixed cast problems in src/clock.c and src/tcl++.c
   o Added SGI and IBM RS6000 to Config.mk based on billa@msi.com (Bill
     Alexander) porting.
-------------------------------------------------------------------------------
 4 May 92:
   o Added tcl 6.3 fixes to ucbsrc/tclBasic.c
-------------------------------------------------------------------------------
11 May 92:
   o Delete closing of pipes from Tcl_System.
-------------------------------------------------------------------------------
14 May 92:
   o Changed floating point math command to take expressions.
-------------------------------------------------------------------------------
18 May 92:
   o Fixed bug in lvarpop were it core dumps if passed variable containing an
     invalid list.
-------------------------------------------------------------------------------
28 May 92:
   o Fixed search path so it does not return an error when a path contains
     an invalid ~user.  
   o Fixed keyedlists from occasionally returning incorrect error with no
     error message when adding a field to an empty list.
-------------------------------------------------------------------------------
10 Jun 92:
   o Update chmod tests to not make assumptions about what group id a file
     as created with.
   o Added support for implementations that indicate floating point errors from
     math functions by returning not-a-number, rather than calling matherr.
   o Changed cindex, crange, csubstr and replicate to take integer
     expresssions.
   o Improved documentation of Tcl_ShellEnvInit.
-------------------------------------------------------------------------------
14 Jun 92:
   o Changed tclEdtdInt.h to use declare command executors as ANSI prototypes
     instead of being of type Tcl_CmdProc, since this broke a DEC compiler.
   o Fixed loop command so that the control variable is left at its
     terminating value, not the previous value.
   o Fixed Tcl_Startup so if used the defaultFile passed in, rather than
     assuming the compiled default value.
-------------------------------------------------------------------------------
28 Jun 92:
   o Fixed bug where a SIGINTR will sometimes cause the command loop to panic.
   o To speed up package library index loading, changed the .tndx file to only
     contain data, not commands to be sourced.  Added Tcl procedure to convert
     Ousterhout-style tclIndex files into package libraries.
   o Fixed problem with cmdtrace of procedures that have empty bodies.  Also
     simplified and optimized the code for tracing procedures.
-------------------------------------------------------------------------------
30 Jun 92:
   o Fixed ShellEnvInit member function in tcl++.h.
-------------------------------------------------------------------------------
12 Jul 92:
   o Added profile command and profrep procedure.
   o Changed alarm command to take floating point seconds and use setitimer
     when available.
   o Moved the system dependent parts of Config.mk to seperate files in a
     directory called config.  A #define in Config.mk now indicates which file
     to use.
   o Droped the -i flag from the chmod command for compatibility with Tcl open
     command changes.  Octal numbers must be prefixed with a "0".
     *** Potential compatibility problem ***
-------------------------------------------------------------------------------
31 Jul 92:
   o Fix max command so it works for negative numbers.
-------------------------------------------------------------------------------
9 Aug 92:
   o Changed build of ucbsrc and tkSupport so that the modified files are
     built from the original files using sed.
   o Imporved autoloading, including not searching path if file name contains
     directories.  Demand_load searchs "auto_path" if it can't find the proc
     anywhere else, this should help Tk programs that dynamicly add directories
     to the variable.  This code moved to C to speed it up.
-------------------------------------------------------------------------------
12 Aug 92:
   o Made message catalog table process global, so a message catalog handle
     is valid in all interpreters in a process.
-------------------------------------------------------------------------------
21 Aug 92:
   o Added support for building a wish with signals.
   o Fix bug where errorCode on a signal was not in the documented format.
-------------------------------------------------------------------------------
23 Aug 92:
   o Added lvarpush command.
-------------------------------------------------------------------------------
3 Sept 92:
   o Converted loading of Tcl library indexes from Tcl to C to speed up these
     operations.
   o Changed fcntl attributes to be named line the Posix standards:  NDELAY is
     changed to NONBLOCK and CLEXEC to CLOEXEC. Fcntl nolonger returns a list
     of current values on query, instead individule values may be queried.
     This makes it easier to use in the normal case and better allows for
     future expansion.  (*POTENTIAL INCOMPATIBILITY*)
-------------------------------------------------------------------------------
6 Sept 92:
   o Changed the signal command to return a keyed list for signal state query.
     Include the command associated with signals that are "trap".  This makes
     it easier to restore the state of signals that you change.
     (*POTENTIAL INCOMPATIBILITY*)
-------------------------------------------------------------------------------
7 Sept 92:
   o Automatically build a Tk .tlib.
   o Added installation of Extended Tk to the install script.
-------------------------------------------------------------------------------
11 Sept 92:
   o Changed select to check read stdio buffers for pending data.  This way
     the files do not have to be unbuffered.
   o Added ability  to get a list of keys for a subfield to function
     Tcl_GetKeyedListKeys.  This necessitated adding a parameter.
     (*POTENTIAL INCOMPATIBILITY*)
   o Added kelykeys command to return lists of keys from a keyed list.
-------------------------------------------------------------------------------
14 Sept 92:
   o Changed the fstat command to make it easier to use and more consistent
     with the file command.  This forced a syntax chang for fstat commands
     were the data is returned in an array variable.
     (*POTENTIAL INCOMPATIBILITY*)
   o Added tty option to fstat (interface to isatty).
-------------------------------------------------------------------------------
20 Sept 92:
   o Changed package library loading so that duplicate package names found in
     a path are loaded.
   o Added the -location options to the packages command.
   o Changed write_file to take multiple strings.
   o Added lvarcat command.
   o Reorganized Makefiles to simplify and fix some make problems.
-------------------------------------------------------------------------------
 1 Oct 92:
   o Wait command was changed to take only one pid.  This is in preparation
     for supporting full waitpid functionallity once the support has been
     added to UCB Tcl.  (*POTENTIAL INCOMPATIBILITY*)
-------------------------------------------------------------------------------
 2 Oct 92:
  o Reorganized help categories.
  o Changed floating point commands to always return floating point numbers
    without lose of precision or demotion to integer.
  o Patch the UCB tclExpr.c file to return doubles without lose of precision.
    This is temporary until a fix is povided in the UCB code.
-------------------------------------------------------------------------------
 4 Oct 92:
  o Fixed behavior of Posix signals and SIGCHLD.
  o Added block and unblock options.
  o Added return of block state in the get option.
  o Fixed potential bug in lrmdup.
  o Process signals when encountered in the command loop rather than just clear
    them.
  o Stored the "wrong # args: " string in a single global  variable to save
    memory rather than repeating in each command.
-------------------------------------------------------------------------------
 5 Oct 92:
  o Fixed bug in for_recursive_glob with continue and break not working as
    expected.
  o Delete chamge bar macros when installing manual pages.
  o Changed startup so if no longer looks for a local TCLDEFAULT file.  Initial
    tests are now run by setting the environment variable.
  o Fixed bug in chmod were set permissions for two difference classes (u,g,o)
    with = in the same command did not work.
  o Changed help and buildhelp.tcl so that multiple brief files are allowed
    (extension .brf).
-------------------------------------------------------------------------------
 7 Oct 92:
  o Signal handling changed so that if multiple signals are received before
    before they are handle and if trap code is associated with that signal,
    then the trap code will be run once for every signal received.
-------------------------------------------------------------------------------
 8 Oct 92:
  o Recoded assign_fields to use upvar.
-------------------------------------------------------------------------------
11 Oct 92:
  o Modified install script to purge the target help tree before installing.
-------------------------------------------------------------------------------
12 Oct 92:
  o Added a options argument to Tcl_Startup.  It is not currrently used.
   (*POTENTIAL INCOMPATIBILITY*)
===============================================================================
15 Oct 92: Extended Tcl 6.4c released
===============================================================================
24 Oct 92:
  o Fixed problem in tclXprocess were it will not compile if wait status
    is union wait.
  o Fixed minor manual page problems.
  o Corrected problems in RS/6000 config file.
  o Fixed problem with buildhelp.tcl always truncating filenames.
-------------------------------------------------------------------------------
27 Oct 92:
  o Added configure file for new version of Ultrix (4.2+).
-------------------------------------------------------------------------------
 7 Nov 92:
  o Fixed problems with convertclock timezones on some machines.
  o Added config file for ultrix4.2
  o Deleted strtoul from osSupport directory and config files.  This is now
    compiled with UCB Tcl if needed.
-------------------------------------------------------------------------------
 8 Nov 92:
  o Use our own strftime for SGI since their's is broken.
  o Added changes to fix problems with systems using IEEE floating point math
    error reporting.
===============================================================================
 9 Nov 92: Extended Tcl 6.4c patch1 released
===============================================================================
14 Nov 92:
  o Added a -n option to the command line that prevents the dumping of the
    procedure call stack on an error.  This is also added as an option to
    the C startup routines.
-------------------------------------------------------------------------------
16 Nov 92:
  o Only set SIGINT to cause an error if the Tcl shell or wish is reading
    commands from stdin.  (*POTENTIAL INCOMPATIBILITY*)
-------------------------------------------------------------------------------
18 Nov 92:
  o Fixed bug were packages from libraries and other auto-loads were not
    evaluate in the global environment.
-------------------------------------------------------------------------------
19 Nov 92:
  o Made yyerror a static in tclXgetdate.y, as it conflicted with yyerror in
    libraries on some systems.
  o Modified Makefile so that main.o is not included in the library.
-------------------------------------------------------------------------------
25 Nov 92:
  o Changed fcntl to handle stdio flags when both the BSD and System-V flags
    are defined.
-------------------------------------------------------------------------------
 1 Dec 92:
  o Fix bug where table expansion copied more that the old size of the table.
-------------------------------------------------------------------------------
14 Dec 92:
  o Fixed problem installing if target directory for Tcl code is not an 
    absolute path.
-------------------------------------------------------------------------------
18 Dec 92:
  o Added TCL_POSIX_SIG to Ultrix4.2 configure file.  Fixed problems in signal
    tests.
  o Recompile UCB file tclCmdIL.c to so that "info library" returns the library
    directory specified in Config.mk.
  o Renamed the Extended Tcl wish shell to "wishx", so both extended and
    standard versions can be installed on the system.
    (*POTENTIAL INCOMPATIBILITY*)
  o Changed install program to handle new Tk manual page names.
  o Added a library proc "tkdemo" to run the Tk demo program once wishx is
    installed.
  o Made compatibility with Tcl 6.5 & Tk 3.0.
===============================================================================
19 Dec 92: Extended Tcl 6.5c patch 2 released. Makes TclX6.4c-P1 compatible
           with Tcl 6.5 and Tk 3.0.  Plus adds above fixes and features.
===============================================================================
29 Dec 92:
  o Fixed bug in convertclock command were a date string without an explict
    timezone returns invalid results.
===============================================================================
29 Dec 92: Extended Tcl 6.4c/6.5c patch3 released.
===============================================================================
 4 Jan 93: 
  o Fixed typo in src/Makefile of C++ include path macro.
-------------------------------------------------------------------------------
25 Jan 93:
  o Removed use of non-ansi strftime form specs (%D %r) from the tests.
  o Fixed incorrect check for strftime error.
  o Added config file for Convex C-series, ConvexOS V10.0 or greater.
  o Merged Convex diffs suppliex by Larry Streepy <streepy@pixel.convex.com>
-------------------------------------------------------------------------------
07 Feb 93:
  o Incorporated newer version of getdate.y, reorganized the convertclock
    command code and improved the tests.
-------------------------------------------------------------------------------
10 Feb 93:
  o Convert name1 & name2 to part1 & part2 in tcl++.h because of conflict with
    generic.h macro.
-------------------------------------------------------------------------------
13 Feb 93:
  o Change the tcl++.h cmd parameter of from const char * to char *, since
    Tcl_Eval requires the string to be writable.
    (*POTENTIAL INCOMPATIBILITY for C++ code*)
  o Removed cmdtrace flush option, output lines are now always flushed.
   (*POTENTIAL INCOMPATIBILITY*)
-------------------------------------------------------------------------------
16 Feb 93:
  o Fix install script to handle new macro .so file in Tcl & Tk.  Will fold it
    into the man page, as some man commands don't do well with .so.
  o Added lassign command, a C implementation of the assign_fields proc.  This
    proc was moved to the compatibility package and modified to call lassign.
  o Do ranlib after copying UCB libraries.
-------------------------------------------------------------------------------
21 Feb 93:
  o Added posix_signals options to the infox command.
  o Eliminated the use of SIG_ERR with Posix signals (its not part of the
    standard).
-------------------------------------------------------------------------------
 6 Mar 93:
  o Converted error messages containing optional arguments from the form [xxx]
    to ?xxx? for consistency with Tcl.
-------------------------------------------------------------------------------
10 Mar 93:
  o Added the program and make target to build Tk help files from the command
    manual pages.
-------------------------------------------------------------------------------
14 Mar 93:
  o Deleted merge tree option of buildhelp.tcl.  This was for internal use and
    is no longer needed.
  o Made read_file argument compatible with the read command.
  o Close file in read_file & write_file if an I/O error occurs.
  o Eliminated the Tcl default file.  The file TclInit.tcl is now sourced
    directly and it sets the Tcl path.  The directory Tcl is installed in
    now contains the TclX version number.
-------------------------------------------------------------------------------
22 Mar 93:
  o In SGI config file, Added -lsun to get NIS getpwnam.
-------------------------------------------------------------------------------
5 Apr 93:
  o Handle conversions of dates correctly when in daylight savings time.
  o Added support for linux from Jamie Honan <jhonan@kralizec.zeta.org.au>.
-------------------------------------------------------------------------------
15 Apr 93:
  o Updated RS600 config file thanks to R Lindsay Todd <toddr@rpi.edu>.
  o Fixed problems with convertclock converting GMT times while in DST.
-------------------------------------------------------------------------------
 2 May 93:
  o Fixed keylget to handle internal quoting correctly.  Thanks to 
    Spencer W. Thomas <spencer@med.umich.edu> for the fix.
-------------------------------------------------------------------------------
 3 May 93:
  o Allow for backslash continuation of #@package: lines.
  o Deleted Tcl_System, per UCB wait changes.  Added osSupport/system.c for
    anyone who's "system" function uses wait (i.e. is broken).
   (*POTENTIAL INCOMPATIBILITY for C code.*)
  o Removed outdate execvp proc (use execl). (*POTENTIAL INCOMPATIBILITY*)
-------------------------------------------------------------------------------
 9 May 93:
  o Changed loadlibindex so it overrides existing package definitions.
-------------------------------------------------------------------------------
12 May 93:
  o Run ranlib on lib files after installing.
  o Improved readability of profrep output.
  o Build index will ignore errors changing ownership.
  o Allow profiling to work on systems where times does not return real time.
-------------------------------------------------------------------------------
26 May 93:
  o Added solaris make file supplied by Judy Grass.
  o Fixed filescan so that if will keep matchInfo(offset) valid even if the
    callbacks read from the file.
-------------------------------------------------------------------------------
28 May 93:
  o Added fix for flock on Solaris supplied by Judy Grass.
  o Call tzset on systems that use the timezone variable.
  o buildpackageindex now deletes the index if the build fails.
-------------------------------------------------------------------------------
 8 Jun 93:
  o Fixed unknown trap handler so it works on systems were
    "file executable {}" returns 1.
-------------------------------------------------------------------------------
17 Jun 93:
  o Extended wait command to support all waitpid options.
  o Can not dup to any specified file id, instead of just the standard ones.
  o The history command can nolonger be compiled out.
-------------------------------------------------------------------------------
20 Jun 93:
  o Changed package library code to be a functional super-set of the standard
    Tcl 7.0 libraries.  auto_path is now used instead of TCLPATH.  Several
    commands have been elimiated.  (*POTENTIAL INCOMPATIBILITY*)
  o Deleted the floating-point math functions that are now part of the "expr'
    command.  Supplied procs in tcl.tlib to replace the old commands.
  o Many changes for compabibility with Tcl 7.0.
  o Changed the help facility so that multiple help directories are searched
    to find help files.  This forms a virtual help tree root.
-------------------------------------------------------------------------------
27 Jun 93:
  o Incorporated fix to the profile command that caused it to count upleveled
    CPU time twice.  Patch supplied by Bob Mazanec <mazanec@hci.cirr.com>.
  o Changed for_recursive_glob and recursive_glob to not follow symbolic links.
  o Merged the "showprocs" functionallity into "showproc", they were almost the
    same.  (*POTENTIAL INCOMPATIBILITY*)
  o Changed shell initialization so it doesn't change the prompt hooks if they
    have already be set during startup.
-------------------------------------------------------------------------------
11 Jul 93:
  o Changed random command to use random instead or rand.  Supplied the BSD
    random function in osSupport.
  o Changed "programName" variable to "argv0" for compatibility with Tcl 7.0.
    (*POTENTIAL INCOMPATIBILITY*)
  o Simplified shell startup code, including support for separate master
    directories for TclX and Tk.  Tcl_CommandLoop function is now internal.
    (*POTENTIAL INCOMPATIBILITY for C code*)
  o Changed cindex, crange and csubstr to take expressions starting with a
    magic token "end" or "len" that will be substituted before the expression
    is evaluated.
  o Add kludge to get machines with only the timezone variable to handle
    formating time as GMT correctly.
  o Added our own version of wish main, with programmable prompts, etc.
-------------------------------------------------------------------------------
18 Jul 93:
  o Changed "signal trap" to edit the command, replacing %S with the signal
    name rather than storing in the global variable. "signalReceived".  This
    fixes bugs with signals received in a signal handler.
   (*POTENTIAL INCOMPATIBILITY*)
-------------------------------------------------------------------------------
20 Jul 93:
  o Fixed bug with lgets not handling backslashes correctly.
===============================================================================
20 Jul 93: Released TclX7.0a Beta 1.
===============================================================================
22 Jul 93:
  o Changed filescan (Boyer-Moore) code to prevent code generation bug under
    HPUX.
  o Fixed bug in tclXlib string handling.
-------------------------------------------------------------------------------
24 Jul 93:
  o Added ctoken string parsing command.
-------------------------------------------------------------------------------
27 Jul 93:
  o Fixed signal handling in wishx.
  o Fixed problems with owner/group not being validated if large number.
-------------------------------------------------------------------------------
29 Jul 93:
  o Fixed bug in select that caused it to return an empty list when data is
    pending in the stdio buffer.
  o Added TclX autoconf configuration.
-------------------------------------------------------------------------------
39 Jul 93:
  o Provided the functions Tcl_AddExtendedCmds and Tcl_AddExtendedLibCmds
    that can add the Extended Tcl commands to an existing interpreter.
  o Don't print shell prompts if not a tty.
===============================================================================
 2 Aug 93: Released TclX7.0a Beta 2.
===============================================================================
 3 Aug 93:
  o Fixed core dump in chmod command.
  o Loop command now takes expressions.
-------------------------------------------------------------------------------
 4 Aug 93:
  o Change the "yy" prefix in the code generated from tclXgetdate.y to be
    "TclXyy".  This is to allow apllications to include yacc code.
  o Call isascii before isspace to handle non-ASCII character sets.
===============================================================================
 5 Aug 93: Released TclX7.0a Beta 3.
===============================================================================
17 Aug 93:
  o Add -bytes and -maxbytes options to copyfile.
  o Fixed configuration problems with including values.h and sys/time.h.
  o Added "make partclean", that does not remove the manual pages that were
    copied to the master directory.  Useful the for the debugging process.
-------------------------------------------------------------------------------
19 Aug 93:
  o Fixed bug with convetclock not working in BST.
-------------------------------------------------------------------------------
24 Aug 93:
  o Added configure check for MCS and time_t.
  o Changed makefiles so that Config.mk can have absolute or relative paths
    to files.
-------------------------------------------------------------------------------
30 Aug 93:
  o Integrated with new Tcl Async functions for signal handling.  Signal
    handling should now work with multiple interpreters.
  o Change "interactiveSession" variable to "tcl_interactive" and moved
    prompts from "TCLENV" array to "tcl_prompt1" and "tcl_prompt2".  These
    changes were done for compatibility with UCB Tcl.
    (*POTENTIAL INCOMPATIBILITY*)
===============================================================================
 1 Sep 93: Released TclX7.0a Beta 4.
===============================================================================
 4 Sep 93:
  o Fixed problem with TCL_LIBRARY and TK_LIBRARY being set to the standard
    paths rather than the TclX paths.
-------------------------------------------------------------------------------
 7 Sep 93:
  o Added lmatch command.
  o Changed libtclx.a and libtk.a to be supplements to libtcl.a and libtk.a
    rather than super-sets.
  o Its now ok for files that are the target of a dup to be close.
-------------------------------------------------------------------------------
 8 Sep 93:
  o Added notes about Tk applications and the fork & execl commands.
  o Added full set of signal names that can be used on signal and kill.
  o Added -pgroup to kill.
-------------------------------------------------------------------------------
15 Sep 93:
  o Initialization now uses a TclX_AppInit mechanism similar to that used by
    Tcl/Tk.   (*POTENTIAL INCOMPATIBILITY for C code*)
  o Make sure to use real waitpid, rather than the wrapper internal to Tcl
    that hides signals.
-------------------------------------------------------------------------------
19 Sep 93:
  o Added -copyfile option to scanfile.
  o Updated tcl++.h with all new Tcl & TclX functions. 
  o Changed the tcl & wishx *main.c files so they will compiler with both C
    and C++.
-------------------------------------------------------------------------------
22 Sep 93:
  o Added support for the configure --srcdir option.
-------------------------------------------------------------------------------
24 Sep 93:
  o Clear errors/EOF before doing a file read so old state does not get
    returned.
  o Redesigned recursive_glob and for_recursive_glob to fix  broken semantics.
    The arguments have changed. (*POTENTIAL INCOMPATIBILITY*)
  o Added option to "ctype" to return the index of character that failed the
    specified classification.  Based on code developed by John Robert LoVerso
    <loverso@osf.org>
-------------------------------------------------------------------------------
27 Sep 93:
  o Added support for old format tclIndex files.
-------------------------------------------------------------------------------
30 Sep 93:
  o Integrated with Tcl 7.0 and Tk 3.3.
-------------------------------------------------------------------------------
 6 Oct 93:
  o Add ability to specify "end" as the index for lvarpop and lvarpush. Thanks
    to Tom Tromey <tromey@busco.lanl.gov>.
  o Fixed many long != int protability problems. Thanks to Steve Clift
    <clift@ml.csiro.au>.
-------------------------------------------------------------------------------
21 Oct 93:
  o Recompile the needed Tcl & Tk files to set the Tcl & Tk library paths
    rather than attempting to override it by setting environment variables,
    as this can have side affects with exec-ed programs.
-------------------------------------------------------------------------------
24 Oct 93:
  o Added "frename" command.
-------------------------------------------------------------------------------
30 Oct 93:
  o Added --arch flag to configure program.
  o Added -argv0 option to execl command. Thanks to R Lindsay Todd
    <toddr@rpi.edu>.
-------------------------------------------------------------------------------
 3 Nov 93:
  o Change help marker for nroff manual pages from '@ to '\"@, since this
    is a true comment. (*POTENTIAL INCOMPATIBILITY*) 
-------------------------------------------------------------------------------
 4 Nov 93:
   o Added "infox apppatchlvel" and tclAppPatchlevel C global.
-------------------------------------------------------------------------------
 7 Nov 93: 
   o Changed lassign to return a list of unassigned elements.  Thanks to
     Wolf-D. Ihlenfeldt <wolf@molout.tutkie.tut.ac.jp>.
   o Modified Extended Tcl to find ~/.tclrc (or other rc file) via the
     global tcl_RcFileName set in TclX_AppInit.
   o Changed "infox posix_signals" to "infox have_posix_signals".
     (*POTENTIAL INCOMPATIBILITY*) 
   o Added "infox have_sockets" and "infox have_msgcats".
   o chartype ord will not return an error on multi-char strings.
   o Added "chroot", "nice", and "sync" commands, "infox have_fsync" option.
-------------------------------------------------------------------------------
10 Nov 93:
   o Added epoch keyword in convertclock.  This is to support the postgres
     database time date format.  Thanks to "Wolf-D. Ihlenfeldt"
     <wolf@molout.tutkie.tut.ac.jp>
   o Exported Tcl_GetTimeZone.
===============================================================================
10 Nov 93: Released TclX7.1a Beta 5.
===============================================================================
13 Nov 93:
   o Renamed TclX_AppInit function to Tcl_AppInit.  This caused major problem
     building shared libraries on Suns.  Also added a reference to "matherr"
     to get the Tcl matherr function brought in on Suns.  Thanks to
     Dr. Joseph E. Sacco <jsacco@ssl.com>.
-------------------------------------------------------------------------------
17 Nov 93:
   o Added #ifndef checks around internal math function declarations to 
     prevent conflicts with GNU libc header files. (Should really check in
     autoconf).
   o Added "cexpand" and "cequal" commands.
   o Added various changes to support Linux.
===============================================================================
18 Nov 93: Released TclX7.2a.
===============================================================================
20 Nov 93:
   o Improved tclhelp program:  can resize text windows,  added apropos
     functionallity.
-------------------------------------------------------------------------------
22 Nov 93:
   o Fixed problems with building with a seperate build directory.
===============================================================================
22 Nov 93: Released TclX7.3a and TclX7.2a to TclX7.3a patch.
===============================================================================
 1 Dec 93:
   o Modify to allow initializing TclX without an Tcl_AppInit function.
   o Added a C variable to force the interpreter to be delete before an exit.
     Useful for applications trying to find memory leaks.
-------------------------------------------------------------------------------
 9 Dec 93:
   o Support correct HZ conversion on cray (thanks to Joanne Pelkey
     <pelkey@craycos.com>.
-------------------------------------------------------------------------------
15 Dec 93:
   o Fixed problem with tclIndex libraries latter in the search path overriding
     earlier ones.
   o Fixed auto_reset, which left TclX autoloading in an invalid state.
-------------------------------------------------------------------------------
17 Dec 93:
   o Changed make process to work around Ultrix non-standardisms.
   o Fixed alignment problems in scanfile and handle table that broke
     DEC Alphas.
-------------------------------------------------------------------------------
21 Dec 93:
   o Fixed system command to return exit status rather than wait status.
     This is what the command was documented to do.
     (*POTENTIAL INCOMPATIBILITY*)     
-------------------------------------------------------------------------------
 4 Jan 94:
   o Fixed potential memory corruption when loadlibindex cann't read a file.
   o Don't let keylset set an empty key name since keylget can't access it.
-------------------------------------------------------------------------------
10 Jan 94:
   o Added check for GNU libc to work around the GNU getopt non-standard
     behavior.  This should make things happy for Linux.
   o Improved tclhelp error handling.
   o Code in tcl_prompt variables must now output the prompt rather than 
     return it.  This is for compatibility with tclsh.
     (*POTENTIAL INCOMPATIBILITY*)
   o Added "readdir" command.
===============================================================================
23 Jan 94: Released TclX7.3a-p1 (patch and full release).
===============================================================================
 5 Feb 94:
   o Fixed SVR4 portability problems.
   o Fixed problem with convertclock on DEC Alpha.
-------------------------------------------------------------------------------
 8 Feb 94:
   o Used setvbuf if its available instead of setlinebuf, as setlinebuf appears
     broken on Ultrix.
===============================================================================
24 Jan 94: Released TclX7.3a-p2 (patch and full release).
===============================================================================
 16 Mar 94:
   o Fixed problem with configure detecting the "timezone" variable on some
     systems,
   o Integrate changes to support SGI IRIX.
-------------------------------------------------------------------------------
 5 May 94:
   o Fixed bug in union function not handling the first element of each
     list being the same.
   o Change select command to support new linux stdio library.
-------------------------------------------------------------------------------
16 May 94:
   o Added signal command wildcard (*) to specify all modifiable signals.
   o Added "signal set" to restore state of signals saved with "signal get".
   o Added "infox have_flock" option.
-------------------------------------------------------------------------------
28 Jun 94:
   o Modified server_open to try other addresses for a hostname when connect
     fails.
   o Added the server_info command.
   o Always go through Tcl file table for commands like echo and commandloop.
     This make sure redirected stdin, stdout and stderr are picked up.
-------------------------------------------------------------------------------
 1 Jul 94:
   o Changes to support DEC Alpha.
   o When using master install model, lib and include files are now symbolicly
     link to the external directories.
===============================================================================
 2 Jul 94: Released TclX7.3b-beta1.
===============================================================================
 4 Jul 94:
   o Fixed warnings on machines that have `free (char *)'.
-------------------------------------------------------------------------------
 8 Jul 94:
   o Fixed problem with truncating long lines that are typed interactively.
   o Moved striping of binaries to install step.
   o Configure script will remove files that must be rebuilt if the install
     location is changed.  This allows for quicker rebuild if the prefix
     or arch was not set correctly.
-------------------------------------------------------------------------------
11 Jul 94:
   o Always install tclXmain++.C and tkXmain++.C, even if tcl++.h support is
     not built in.
   o Due to a difficult to fix bug, the profrep stack depth summary option
     has been removed.  This changes the calling sequence of profrep.
     (*POTENTIAL INCOMPATIBILITY*)
===============================================================================
16 Jul 94: Released TclX7.3b.
===============================================================================
