*******************************************************************************
** Changes since the Version 1.9x of Octave for OS/2                         **
*******************************************************************************


Octave 2.09 Build 01:
**********************

* New Version 2.0.9.

Octave 2.08 Build 01:
**********************

* New Version 2.0.8.

* Patch for pt-fvc.cc included.

Octave 2.07 Build 01:
**********************

* New Version 2.0.7.

Octave 2.06 Build 01:
**********************

* New Version 2.0.6.

* All functions working with FILE IDS (file handles) are renamed:
  _dup, _dup2, _close, _fdopen, _pipe.

* The function pipe is now returning the octave file streams.

* Minor modifications in the makefiles.

Octave 2.05 Build 04:
**********************

* inst-octave.cmd and updt-octave.cmd patched.

* Patches included:
  input.cc (octave_read):
	Don't forget to free input buffer if it exists and has zero length.
  (gnu_readline):
	Free buf if fgets returns 0.
  parse.y:
	Parse error will not abort Octave, when forced_interactive "-i"
  Array2-idx.h (Array2<T>::maybe_delete_elements):
	Prevent out-of-bounds indexing of the index array.
  Array-idx.h (Array<T>::maybe_delete_elements): Likewise.
  idx-vector.cc (IDX_VEC_REP::is_colon_equiv):
 	Make it work when the vector is not sorted.

Octave 2.05 Build 03:
**********************

* lex.l patched:
  help will work with text mode files, even if the help text is not at the
  beginning of the file.

* Lisp files modified:
  hilit19 will not be loaded, when running emacs in normal text mode.

* parse.y patch included:
  Using formal parameters for functions, the names of which are already
  being used by builtin functions, will not produce errors. For example:
  function y=f(type), y=type; end;

* variables.cc patched: <CR>s are not copied into the help text.

* The full name of the executable can be specified in .emacs.

* inst-octave.cmd and updt-octave.cmd patched.

* lex.l patched: Octave reads script and function files with lines like:
  x = x + ...
      3;

Octave 2.05 Build 02:
**********************

* New internal system routine (also used in procbuf):
  All / in the executable are replaced by \ when using cmd.exe or 4os2.exe
  as shell and all \ are replaced by / when using a UNIX shell.

* make-octfile.cmd patched: The dynamic loading of function will
  under OS/2 2.xx.

* nextpow2.m patched: nextpow2(1000) returns 10.

* inst-octave.cmd patched: scripts.fat will be renamed to scripts on FAT.

* The files in the subdirectory doc are FAT compatible.

* Octave reads script and function files with lines like:
  M = [1 2
       3 4]

Octave 2.05 Build 01:
**********************

* New version: Octave 2.0.5

* help will work with text (<CR>>LF>) files.

* No endfunction is needed at the end of a function file.

* Octave uses noncontinous multiple heaps. So the heap size is no longer
  fixed to 32 MB.

* Image viewer and GNUPlot can be used at the same time again.
  The environment variable OCTAVE_IMAGE_VIEWER is supported again.

* (require 'hilit19) added in lisp files.

* octave-mode.el modified: switch/case/otherwise/endswitch statement included.

Octave 2.02 Build 02:
**********************

* Bug in usleep fixed. plot works again.

* erf(x) and erfc(x) are supported. Bug in erfinv.m is fixed.

* gamma(2000) no longer aborts Octave.

* Bugfixes in the installationsscript. Corrected README.OS2

* Default value of IMAGEPATH now points to ../scripts/image.

* Patch included (oct-stream.cc):
  scanf reads correctly when using %f or %e.

Octave 2.02 Build 01:
**********************

* POPEN2.M modified: The script now uses the new function spawn to start
  the child process.

* The environment variable OCTAVE_IMAGE_VIEWER is no longer supported. Modify
  the script file IMAGE.M, if you want to use another image viewer.

* Function added: child_purge_temp_file. It removes the temporary file
  when the specified child process dies (used in IMAGE.M).

* The pipe function returns the file handles and not the Octave's file ids.
  Use fdopen to open the handles!

* Functions added: dup, close, fdopen.

* Function added: spawn.

* Octave reads OS/2 BMP (version 1.0) Windows BMP, PNM (P1 - P6) and
  Octave's IMG format. It writes OS/2 BMP (version 1.0) Windows BMP,
  PNM (P5, P6), Postscript and Octave's IMG format. LOADIMAGE.M and
  SAVEIMAGE.M are modified (the original version are in the archive
  image.zip).

* New version: Octave 2.0.2

* Bug fixes in dlfcn.lib.

Octave 2.01 Build 01:
**********************

* Dynamik Linking is now supported! See hello.cc and make_int.cc for
  example. A small bug in make_int.cc fixed.

* Bug in xor.m fixed.

* Bug in the installation script fixed: The script will not replace the first
  "\DLL" in LIBPATH, if Octave is installed for the first time on a system.

* The installation script is renamed to inst-octave.cmd.

* New version 2.0.1.

* All C++ Code is now placed in DLLs.
	
* GNUPLOT is started as normal VIO, so gshow will work. Also because of other
  changes in the code, CTRL-C works even when GNUPLOT is started.

* Minor changes in the sources.

Octave 2.00 Build 01:
**********************

* New version: Octave 2.0.

* Script and function files are loaded correctly even if they contain an
  End-of-file character. This character will be interpreted as a newline
  character.

* saveimage saves images in bmp, gif and ps files.



*******************************************************************************
** Changes since the Version 1.1.1 of Octave for OS/2                        **
*******************************************************************************

Octave 1.94 Build 01:
**********************

* New version 1.94 (pre-2.0). Keep in mind:

  ***************************************************************************
  ** Octave 1.94 is a test release!                                        **
  ** If you have any problems, please report them, so that they can be     **
  ** fixed in version 2.0                                                  **
  ***************************************************************************

* New command line flag '-I'. It forces interactive behaviour, but
  deactivates the pager, even if Octave is in interactive mode.

* Every signal which will cause a jump to toplevel (Octave prompt), will
  be handled differently if a script or function file is executed: It will
  be handled as an error.

* A new installation script: This script make changes in the config.sys,
  .octaverc, .emacs and dir. It unzips the scriptfiles and creates an object
  on the desktop! The info-files will be copied to the correct directory
  and older DLLs coming with EMX will be removed, if necessary.

Octave 1.93 Build 02:
**********************

* Script and function files are loaded correctly even if they no text file
  (CR/LF).

* The sigchld_handler in sighandlers.cc is patched:
  When no child in octave_child_list has created SIGCHLD, waitpid is
  executed. This solves problems with displaying images when GNUPLOT is
  running, and similar problems.

* Octave's system command now correctly returns the output or the pid,
  depending on the number or values of the arguments.

* The image viewer is started in "async" mode.

Octave 1.93 Build 01:
**********************

* New version 1.93 (pre-2.0). Keep in mind:

  ***************************************************************************
  ** Octave 1.93 is a test release!                                        **
  ** If you have any problems, please report them, so that they can be     **
  ** fixed in version 2.0                                                  **
  ***************************************************************************

* Changes in octave.el: hilit19 is used for octave-shell-mode.

Octave 1.92 Build 02:
**********************

* get_size () in oct-stream.cc patched:
  fread works with a scalar as second argument.

* Function kbhit () in sysdep.cc calls flush_octave_stdout.
	
* sighandlers.cc and toplev.cc patched:
  Ctrl-C and Ctrl-Break will work more than only once again.
	
Octave 1.92 Build 01:
**********************

* New version 1.92 (pre-2.0). Keep in mind:

  ***************************************************************************
  ** Octave 1.92 is a test release!                                        **
  ** If you have any problems, please report them, so that they can be     **
  ** fixed in version 2.0                                                  **
  ***************************************************************************

* Minor bug fixes in octave-info.el.

* Changes in octave-mode.el: hilit19 is used for editing script files.

* New command add to the Emacs-Shell-Mode for Octave: warranty, multiplot,
  close multiplot, subwindow.

* Minor changes in the the makefiles for OS/2. These changes do not 
  modify the binary.

Octave 1.91 Build 01:
**********************

* New version 1.91 (pre-2.0). Keep in mind:

  ***************************************************************************
  ** Octave 1.91 is a test release!                                        **
  ** If you have any problems, please report them, so that they can be     **
  ** fixed in version 2.0                                                  **
  ***************************************************************************

Octave 1.90 Build 01:
**********************

* New version 1.90 (pre-2.0). Keep in mind:

  ***************************************************************************
  ** Octave 1.90 is a test release!                                        **
  ** If you have any problems, please report them, so that they can be     **
  ** fixed in version 2.0                                                  **
  ***************************************************************************

* New libraries (readline, kpathsea).

* Octave uses again an internal info viewer. This ensures that it runs
  correctly under the control of Emacs.

* Signal handler for SIGCHLD gepatcht.

* Octave needs the GNUPLOT 3.6 beta to display multiple plots.

* Since the new compiler supports multiple heaps it is no longer
  necessary to fix the heap size during the installation.

* The environment variable specifies the name of the init file octave executes
  on startup.



*******************************************************************************
** Changes since the Version 1.1.0 of Octave for OS/2                        **
*******************************************************************************

Octave 1.1.1 Build 08:
**********************

* The cursor type will be selected in readline.

* New Compiler (emx-gcc 0.9c) and libraries used.

* The Stacksize has been increased.

* Signal handling is improved: Ctrl-Break always acts in the same way Ctrl-C
  does. No signal handler for SIGTERM!

Octave 1.1.1 Build 07:
**********************

* All FPE signals are now explicity masked off. The fixes the bugs when
  running Octave on systems with GAMESRVR.DLL.

Octave 1.1.1 Build 06:
**********************

* Pause now works also when running Octave under Emacs.

* The Octave's 'system' (or 'shell_cmd') is fixed. This fixes also the bug in
  saveimage.

* xvos2 now uses the image viewer specified in the environment variable
  OCTAVE_IMAGE_VIEWER, if set, or ib.exe if not.

Octave 1.1.1 Build 05:
**********************

* New Compiler (emx-gcc 0.9B) and libraries (stdcpp, libg++, ...)

* New info browser version 2.14

* parse.y was patched:
  A parse error will not abort the parser, if octave is forced to be
  interactive (-i).

* lex.l was patched:
  SIGINT will not crash Octave, if octave is forced to be interactive (-i).

* info will not kill the octave process, if the terminal type is emacs.
  It displays a message, so that emacs can start its own info browser.

* The routines read and write in liboctave/dMatrix.cc are patched:
  The streams are set to binary mode before writing/reading and set back to
  text mode after.

* Emacs-Shell-Mode for Octave including Info, temporary files, script files.

* New function in Octave: add_to_command_number.

Octave 1.1.1 Build 04:
**********************

* image uses now ib.exe (the Multimedia Viewer coming with Warp) to view
  the images. This works also when GNUPLOT is running.

* GNUPLOT is now started as PM program in a different session. Now one can
  use Ctrl-C to interrupt Octave, when Gnuplot is running.

* Internal Changes in Iostream:
  New function _io_popen (used in the member functions of the class procbuf):
  The command is now executed direct, without the command processor cmd.exe
  (or ...). The way the program is started (PM, Session, ...) is specified
  in the third argument of _io_popen. If this fails, the command is
  executed via the command processor.

* A new signal handler (SIGINT) for parse_and_execute: The script files
  are closed, if the execution is interrupted by the user. The signal works
  like an error! 

Octave 1.1.1 Build 03:
**********************

* The signal handler is fixed: Ctrl-C works now more than only ones.

Octave 1.1.1 Build 02:
**********************

* The function script polyreduce.m is fixed. So the functions deconv and
  residue are working.

* The Fortran and C routines are now in DLLs. This reduces the size of the
  executable and octave needs not so much memory at start time.

* The libraries of info, kpathsea and readline are linked using DLLs. The
  stand-alone info browser (info.exe) uses also that DLLs.

* The heap is not longer fixed to 32 MB (by emx gcc). The user can select the
  best heap size for his problems and his system.

* The iostream library is fixed: Octave reads binary files (load -b or
  load -m).

* A few changes in the source code.

* New Version of Octave (1.1.1).

* Octave no longer hangs the WPS, if it is closed by typing quit, while
  GNUPLOTPM is still running.



*******************************************************************************
** Changes since the Version 1.0 of Octave for OS/2                          **
*******************************************************************************

* Octave now uses ';' as separator in paths.

* Drives are now supported in paths. So you can start octave from a
  different drive and octave will find the script files.

* Drives are also supported in 'cd' and 'pwd'.

* Control-C works more than once.

* By defining USE_EXTERNAL_TEMPLATES and using emxbind -s I made the file
  octave.exe much smaller.

* The temporary files created by the commands edit_history and run_history
  are deleted.

* The info files are changed for FAT.

* I create a second set of script files, patched for FAT.

* Octave uses the file in the environment variable OCTAVE_INITFILE instead
  of .octaverc, if the variable is set.

* New Version of Octave (Version 1.1.0)

* New Compiler (emx-gcc 0.9A) and libraries (iostream 0.66)

* I add the extproc-statement.

* Octave executes now a interactive script from a file in the command line.

* Images can be viewed using ghostscript.

* Octave uses now GNUPLOT 3.5.
