The AT&T Software Technology ast-ksh package from AT&T Labs Research
contains ksh and support libraries. This is the minimal set of
components needed to build ksh.  This package is a superset of the
following package: ksh; you won't need this if you download ast-ksh.

Source Package Installation Instructions:

  (1) Do not install packages as root/super-user. Although some components may
      have setuid executables, few must be owned by root. These are best
      changed manually when the security implications are understood.
  (2) Choose a package root directory and cd to it. This will be a local work
      area for all packages.
  (3) These instructions bypass the click to download package links on the
      download site. If you already clicked, or if your system does not have
      curl(1), hurl(1), or wget(1) then use the alternate instructions for
      (3),(4),(5) in plan B below. Plan B installs the hurl(1)
      script which works with ksh and modern bash. The top level URL is:
		URL=http://www.research.att.com/sw/download
  (4) If the bin/package script does not exist then run:
		test -d bin || mkdir bin
		url=$URL/package
		(curl $url||wget -O bin/package $url||hurl $url) > bin/package
		chmod +x bin/package
  (5) Determine the list of package names you want from the download site, then
      use the package(1) command to do the actual download:
		bin/package setup source $URL \
			package-name ...
      This downloads the latest source package(s); up-to-date local packages
      are not downloaded again unless package force ... is specified.
      If the package root will contain only one architecture then you can
      install in bin and lib instead of arch/HOSTTYPE/bin and arch/HOSTTYPE/lib
      by running this instead:
		bin/package setup flat source $URL \
			PACKAGE ...
      To update the same packages from the same URL run:
			bin/package setup source
  (6) Build and install; all generated files are placed under arch/HOSTTYPE
      ($INSTALLROOT), where HOSTTYPE is the output of bin/package (with no
      arguments.) name=value arguments are supported; CC and debug=1 (compile
      with -g instead of -O) are likely candidates. The output is written to
      the terminal and captured in $INSTALLROOT/lib/package/gen/make.out:
		bin/package make
  (7) List make results and interesting errors:
		bin/package results
      Run the regression tests:
		bin/package test
      List test results and errors:
		bin/package results test
  (8) The generated binaries are position independent, i.e., they do not
      contain hard-coded paths. However, commands with related files, like
      file(1) and nmake(1), require the path of the bin directory to be
      exported in PATH.
  (9) You can run the binaries directly from the package root, or you can
      install them in a public root after you are satisfied with the make and
      test actions (requires the AT&T nmake(1) command):
		bin/package install flat DIRECTORY PACKAGE
      This will install in DIRECTORY/bin and DIRECTORY/lib. If you want to
      preserve the arch/HOSTTYPE hierarchy under DIRECTORY then omit the
      flat argument. If you don't have nmake(1) then the following will do a
      flat install:
		cd $INSTALLROOT
		cp -p -r bin lib include DIRECTORY
  (10) To summarize, after the first time the download, build, and test cycle
      for the latest source release is:
		bin/package setup source
		bin/package make
		bin/package test

Source Package Installation Instructions -- Plan B:

  (3) Create the subdirectory lib/package/tgz and download all package archives
      into that directory.
  (4) If the bin/package script does not exist then manually read the INIT
      source package:
		gunzip < lib/package/tgz/INIT.YYYY-MM-DD.tgz | tar xvf -
      If your system does not have tar(1) or gunzip(1) then download the ratz
      source package, compile it, and manually read the INIT
      source package:
		mkdir bin
		cp lib/package/tgz/ratz.YYYY-MM-DD.c lib/package/tgz/ratz.c
		cc -o bin/ratz lib/package/tgz/ratz.c
		bin/ratz -lm < lib/package/tgz/INIT.YYYY-MM-DD.tgz
  (5) Read all unread package archive(s):
		bin/package read
      Both source and binary packages will be read by this step.

All recorded changes follow.

:::::::: ksh93 ::::::::

04-02-28  --- Release ksh93p  ---
04-02-28  The ability to apply an append discipline to any variable has
	  been added.
04-02-14  A bug in which the exportall option (set -a) would cause incorrect
	  results for arrays has been fixed.
04-02-02  A bug in which an exported array would pass more than
	  the first element to a script invoked by name has been fixed.
04-02-02  A bug on some systems in which name=value pairs preceding a script
	  invoked by name was not getting passed to the script has been fixed.
04-01-20  A bug in which an unset discipline function could cause a core
	  dump on some systems has been fixed.
04-01-12  A bug in which a continue or break called outside a loop from
	  inside a function defined with name() syntax could affect 
	  the invoking function has been fixed.
04-01-08  If a command name begins with ~, only filename completion will be
	  attempted rather than pathname completion using the builtin editors. 
04-01-08  A bug in the vi edit mode in which the wrong repeat count on
	  multiple word replacements with the . directive has been fixed.
04-01-06  Backspace characters are now handled correctly in prompt strings.
04-01-06  The getopts builtin has been modified to accept numerical
	  arguments of size long long on systems that support this.
04-01-06  A bug in which unsetting all elements of an associative array
	  would cause it to be treated as an indexed array has been fixed.
03-12-15  A bug in which q quoted string ending with an unescaped $ would
	  delete the ending $ in certain cases has been fixed.
03-12-05  A bug in which the shell could hang when set -x tracing a command
	  when an invalid multibyte character is encountered has been fixed. 
03-12-05  On some systems, if the KEYBD trap is set, then commands that use
	  the meta key were not processed until return was hit.  This
	  has been fixed.
03-12-05  A problem which occured when the login shell was not a group
	  leader that could cause it to fail has been fixed.
03-12-05  A problem in which a shell could core dump after receiving a signal
	  that should cause it to terminate while it was in the process
	  of acquiring more space has been fixed.
03-12-05  If ENV is not specified, the shell will default to $HOME/.kshrc
	  for interactive shells.
03-11-21  A bug introduced in ksh93o in which the DEBUG trap could get
	  disabled after it triggered has been fixed. 
03-11-04  A bug in which using arithetic prefix opertors ++ or -- on a
	  non-lvalue could cause a core dump has been fixed.
03-11-04  A bug in which leading zeros were stripped from variable
	  expansions within arithmetic compution to avoid being treated
	  as octal constants when they should not have, has been fixed.
03-10-08  A bug introduced in ksh93o in which a large here document inside
	  a function definition could get corrupted has been fixed.
03-09-22  A bug in which the .get discipline function was not being
	  called when a string variable was implictly referenced from
	  within a numerical expression has been fixed.
03-09-22  A bug in which a script without a leading #! could get executed
	  by /bin/sh rather than the current shell on some systems has
	  been fixed.
03-09-12  To improve conformance with ksh88, leading zeros will be ignored
	  when getting the numerical value of a string variable so that
	  they will not be treated as octal constants.
03-09-03  The builtin kill command now processes obsolete invocations
	  such as kill -1 -pid.
03-09-02  The restriction on modifying FPATH in a restricted shell (sh -r)
	  has been documented.
03-09-02  The restricted shell (sh -r) has been modified to disallow
	  executing command -p.
03-08-07  A bug in which the KEYBD trap was not being invoked when
	  characters with the 8th bit set has been fixed.
03-08-02  A parser bug introduced in ksh93o which caused the character
	  after () in a Posix function definition to be skipped 
	  when reading from standard input has been fixed.
03-08-01  A bug in which "${foo#pattern}(x)" treated (x) as if it were
	  part of the pattern has been fixed.
03-08-01  The command -x option has been modified so that any trailing
	  arguments that do expand to a single word will be included
	  on each invocation, so that commands like command -x mv * dir
	  work as expected.

03-07-20  --- Release ksh93o+  ---
03-07-20  A bug in which could cause memory corruption when a posix
	  function invoked another one has been fixed.
03-07-15  A bug in which a file descriptor>2 could be closed before
	  executing a script has been fixed.
03-07-15  A parsing error for <() and >() process subsitituions inside
	  command substitution has been fixed.
03-07-15  A parsing error for patterns of the form {...}(...) when
	  used inside ${...} has been fixed.
03-07-15  An error in which expanding an indexed array inside a compound
	  variable could cause a core dump has been fixed.
03-07-15  A bug in which under on rare ocassions a job completion interrupt
	  could cause to core dump has been fixed.
03-06-26  A bug in which process substitution embeded within command
	  substitution would generate a syntax error has been fixed.
03-96-23  A bug in which ${@:offset:len} could core dump when there
	  were no arguments has been fixed.
03-96-23  A bug in which ${X[@]:offset:len} could core dump when X
	  was unset has been fixed.
03-06-22  The -x option was added to the command builtin.  If this
	  option is on, and the number of arguments would exceed ARG_MAX,
	  the command will be invoked multiple times with a subset of
	  the arguments.  For example, with alias grep='command -x grep,
	  any number of arguments can be specified.
03-06-14  A bug in which could cause a core dump on some systems with
	  vi and emacs editors with the MULTIBYTE option has been fixed.
03-06-06  A bug in which the shell could core dump when a script was
	  run from its directory, and the script name a symlink to a file
	  beginning with .., has been fixed.
03-06-05  A bug in which the shell could core dump when a child process
	  that it is unaware of terminates while it is calling malloc()
	  has been fixed.
03-06-02  An option named globstar (set -G) has been added.  When enabled,
	  during pathname expansion, any component that consists only of ** is
	  matches all files and any number of directory levels.
03-05-30  A bug in which the PATH search could give incorrect results when
	  run from directory foo and PATH contained .:foo:xxx has been fixed.
03-05-29  Some changes were made to the code that displays the prompt in edit 
	  mode to better handle escape sequences in the prompt.
03-05-27  I added = to the list of characters that mark the beginning of
	  a word for edit completion so that filenames in assignments
	  can be completed.
03-05-20  A bug in which read -N could hang on some systems when reading
	  from a terminal or a pipe has been fixed.
03-05-19  A bug in which the ouput of uname from a command substitution
	  would go to the standard output of the invoking command when
	  uname was invoked with a non-standard option has been fixed.
03-05-19  A job control bug which would cause the shell to exit because 
	  it hadn't take back the terminal has been fixed.  The bug
	  could occur when running a function that contained a pipeline
	  whose last element was a function.
03-05-19  A job control timing bug introduced in ksh93o on some systems
	  which could cause a pipeline to hang if the first component
	  completed quickly has been fixed.
03-05-13  The read builtin has been modified so that the builtin editors
	  will not overwrite output from a previous incomplete line. 
03-05-13  A bug in which the name of an identifier could have the string
	  .sh. prefixed to it after expanding a variable whose name begins
	  with .sh. has been fixed.
03-05-13  A bug in the expansion of $var for compound variables in which
	  some elements would not be output when the name was a prefix
	  of another name in the compound variable has been fixed.
03-05-08  The last item in the ksh93o release on 03-01-02 has been
	  altered sligthly to preserve the leading 0's when the
	  preceding character is a digit.  Thus, with typeset -LZ3 x=10,
	  $(( 1$x)) will be 1010 whereas $(( $x) will be 10.
03-04-25  A bug in which if x is a name reference, then nameref y=x.foo
	  did not follow x has been fixed.

03-03-18  --- Release ksh93o  ---
03-03-18  A -N unary operator was added to test and [[...]] which returns
	  true if the file exists and the file has been modified since it
	  was last read.
03-03-18  The TIMEFORMAT variable was added to control the format for
	  the time compound command.  The formatting description is
	  described in the man page.
03-03-06  A -N n option was added to read which causes exactly n bytes
	  to be read unlike -n n which causes at most n bytes to be read.
03-03-03  Three new shell variables were added.  The variable .sh.file
	  stores the full pathname of the file that the current command
	  was found in.  The variable .sh.fun names the current function
	  that is running.  The variable .sh.subshell contains the depth
	  of the current subshell or command substitution.
03-03-03  When the DEBUG trap is executed, the current command line after
	  expansions is placed in the variable .sh.command.  The trap
	  is also now triggered before each iteration of a for, select,
	  and case command and before each assignment and redirection.
03-02-28  Function definitions are no longer stored in the history file so
	  that set -o nolog no longer has any meaning.
03-02-28  All function definitions can be displayed with typeset -f not
	  just those stored in the history file.  In addition, typeset +f
	  displays the function name followed by a comment containg the
	  line number and the path name for the file that defined this function.
03-02-28  A bug in which the value of $LINENO was not correct when executing
	  command contained inside mult-line command substitutions has been
	  fixed.
03-02-19  Since some existing ksh88 scripts use the undocumented and
	  unintended ability to insert a : in front of the % and # parameter
	  expansion operators, ksh93 was modified to accept :% as equivalent
	  to % and :# as equivalent to # with ${name op word}.
03-02-14  A bug which could cause a core dump when reading from standard
	  error when standard error was a pty has been fixed.
03-02-14  The shell arithmetic was modified to use long double on systems
	  that provide this data type.
03-02-09  A bug in which a function located in the first directory in FPATH
	  would not be found when the last component of PATH was . and the
	  current directory was one of the directories in PATH has been fixed.
03-02-07  The trap and kill builtin commands now accept a leading SIG prefix
	  on the signal names as documented.
03-02-05  A bug in the expansion of ${var/$pattern}, when pattern contained
	  \[ has been fixed.
03-02-05  A bug in which .sh.match[n], n>0, was not being set for substring
	  matches with % and %% has been fixed.
03-01-15  A bug in which getopts did not work for numerical arguments specified
	  as n#var in the getopts string has been fixed.
03-01-09  A bug in which using ${.sh.match} multiple times could lead to
	  a memory exception has been fixed.
03-01-06  A bug in the expansion of ${var/pattern/$string} in the case that
	  $string contains \digit has been fixed. 
03-01-02  A -P option was added for systems such as Solaris 8 that support
	  profile shell.
03-01-02  For backward compatibility with ksh88, arithmetic expansion
	  with ((...)) and let has been modified so that if x is a zero-filled
	  variable, $x will not be treated as an octal constant.

02-12-05  --- Release ksh93n+  ---
02-11-30  A bug that can show up in evaluating arithmetic statements that
	  are in an autoloaded function when the function is autoload from
	  another function has been fixed.
02-11-30  An optimization bug in which an expansion of the form ${!name.@},
	  which occurred inside a for or a while loop, when name is a name
	  reference, has been fixed.
02-11-18  A bug in which modifying array variables in a subshell could leave
	  side effects in the parent shell environment has been fixed.
02-11-18  A memory leak when unsetting an associative array has been fixed.
02-11-14  The code to display compound objects was rewritten to make
	  it easier for runtime extensions to reuse this code.
02-11-14  A change was made to allow runtime builtins to be notified when
	  a signal is received so that cleanup can be performed.
02-10-31  User applications can now trap the ALRM signal.  Previously,
	  the ALRM signal was used internally and could not be used
	  by applications. 
02-10-31  A bug in which signals received while reading from a coprocess
	  for which traps were set was not handled correctly has been fixed.
02-10-31  A bug in which a file opened with exec inside a subshell could
	  be closed before the subshell completed has been fixed.
02-10-21  A bug in which setting PATH or FPATH inside a function might not
	  take effect has been fixed.
02-10-21  A bug which could cause a core dump when a local SECONDS variable
	  is defined in a function has been fixed.
02-10-15  A bug in which the associate array name operator ${!array[@]}
	  could return the same name multiple times has been fixed.
02-10-15  A bug in which the zero'th element of an associative array was
	  not getting set when an assignment was made without a subscript
	  specified has been fixed.

02-09-30  --- Release ksh93n  ---
02-09-30  The maximum indexed array size was increased to 16Megs.
02-09-30  A bug which could cause a core dump when changing attributes
	  of associative array has been fixed.
02-09-30  A bug in which exporting an array variable would not export the
	  0-th element has been fixed.
02-09-30  A bug in which an array assignment of the form a=($a ...) would unset
	  'a' before the right hand side was evaluated has been fixed.
02-09-27  A bug in which the error message for ${var?message} when var was
	  null or unset did not contain the variable name var has been fixed.
02-09-27  A bug in which closing file descriptors 0 through 2 could
	  cause a subsequent here document to fail has been fixed. 
02-09-14  A bug in whence which occurs when the specified name contained
	  a / has been fixed.
02-09-14  A bug in the parser for strings of the form name$((expr))=value
	  has been fixed.
02-09-14  A for loop optimization bug in which the number of elements in
	  an array was treated as an invariant has been fixed.
02-09-09  A bug in which redirection or closing of a file descriptor between
	  3 and 9 could cause a subsequent here document to fail has been
	  fixed. 
02-09-09  A bug in which a background job was not removed from the job list
	  when a subshell completed has been fixed, for example (prog&). 
02-09-03  A bug in which an assignment of the form name=(integer x=3)
	  could be interpretted as an array assignment rather than a
	  compound variable assignment has been fixed.
02-08-19  A command completion bug which occurred on file systems that
	  are case insensitive has been fixed.
02-08-19  A bug which could lead to an exception on some systems (for
	  example FREEBSD) which occurred when setting PATH has been fixed.
02-08-11  A bug in arithmetic rounding in which a value input as a decimal
	  string would output as a rounded version of the string has
	  been fixed.
02-08-11  A bug in which the last character could be deleted from shell
	  traces and from whence when called from a multibyte locale
	  has been fixed.
02-08-01  A bug which could cause a core dump to occur when a shell script
	  is executed while a coprocess is running that has closed the
	  output pipe has been fixed.
02-08-01  A bug in which command completion in multibyte mode could
	  corrupt memory for long command lines has been fixed.

02-06-17  --- Release ksh93n-  ---
02-06-17  A bug in which user defined macros could cause a core dump in
	  with MULTIBYE mode has been fixed.
02-06-17  A bug in which printf format specifiers of the form %2$s were causing
	  a core dump has been fixed.
02-06-17  A bug in which setting stty to noecho mode did not prevent the
	  echoing of characters by ksh when emacs or viraw mode
	  was enabled has been fixed.
02-06-17  A bug in which background job completion could cause the sleep
	  builtin to terminate prematurely has been fixed.
02-06-17  A bug in which the shell could core dump if getopts was called
	  when the OPTIND variable contained a negative value has been fixed. 
02-06-10  The edit mode prompt has been modified to handle escape sequences.  
02-06-10  A bug which occurred for interactive shells in which the builtin
	  cat command was used in command substitution on a file whose
	  size was larger than PIPE_BUF has been fixed.
02-06-10  A bug in which the trap on ERR was not being processed when
	  set inside a function has been fixed.
02-06-07  A bug in which function definitions could cause the history count
	  to be decremented by one (and even become negative) has been fixed.
02-06-05  A bug in read in which share mode could be enabled has been fixed.
02-05-28  A bug which could occur when the last command of a script was
	  a case statement and the action selected ended in ;& instead of ;;
	  has been fixed.
02-05-23  A bug with unary + introduced in ksh93k has been fixed.
02-05-07  A bug in substitutions of the form ${var/pattern/string} in which
	  a backslash was inserted in the replacement string when it contained
	  a special pattern character has been fixed.
02-05-01  A bug in the emacs edit mode which occurred in versions compiled
	  for multibyte character sets which occurred when a repeated search
	  was requested after a long line had been returned for the previous
	  search has been fixed.
02-04-02  vi and emacs edit modes were modified so that tab completion is
	  disabled when invoked from the read built-in.

02-03-26  --- Release ksh93m+  ---
02-03-26  A bug in which \ was not handled correctly when used in file
	  expansion has been fixed.
02-02-18  A bug in which lines beginning with a # were deleted from here
	  documents when the here-document delimiter was followed by
	  a comment has been fixed.
02-12-06  An optimization bug in which ${!x[@]) was treated as invariant in
	  a for loop has been fixed.
02-02-06  A bug in which the ERR trap is not cleared for a script invoked
	  by name from within a function has been fixed.
02-01-08  A bug in which a shell script executed from within a subshell
	  could cause this script to have an invalid pointer leading
	  to a memory fault has been fixed. 
02-01-07  Added here documents of the form <<< word (as per zsh) which
	  is equivalent to << delim\nword\ndelim.
02-01-07  A bug in which the first word of a compound assignment,
	  x=(word ...), was treated as a reserved word has been fixed.
02-01-07  A bug in the handling of \ when noglob was enabled and a
	  substitution of the form ${word op pattern} occurred in the
	  same word has been fixed.
02-01-07  A compilation option, CMDLIB_BLTIN in the file OPTION, has
	  been added.  When this options is set, all commands implemented
	  in libcmd become shell builtin commands by default.
02-01-07  A bug in which builtin foo, where foo is already a builtin
	  would result in the builtin foo getting removed has been fixed. 
02-01-07  A bug which the shell executed a command found in the current
	  directory when PATH have no valid directories has been fixed.
01-11-28  The value of $? was not being set when called with exit.
01-11-28  If the last command was of the form (...) and a trap on EXIT or
	  ERR was set, and the command inside () modified the trap, then
	  the original trap wasn't executed.
01-11-26  The value for 0 is now preceded by the base number when
	  the base was not 10.
01-11-26  The default has compilation mode has been changes so that
	  viraw mode will always be on.

01-10-31  --- Release ksh93m  ---
01-10-31  A for loop optimizer bug for subshells contained withing for
	  loops has been fixed.
01-10-16  typeset without arguments no longer outputs variable names
	  that do not have any attributes that are set.
01-10-16  A bug introduced in ksh93l in which assignments specified with
	  the exec built-in were not being expanded properly has been
	  fixed.
01-10-11  An optimization bug in which ${!x) was treated as invariant in
	  a for loop has been fixed.
01-10-11  Unsigned integer variables in bases other than 10 are printed now
	  expand in that base with the base prefix.
01-10-10  A number of typos in the self generating man pages for shell
	  built-ins have been fixed.
01-10-04  The self generated man pages for hist and fc were not working
	  correctly and have been fixed.
01-10-03  Yet another optimizer bug in which shell patterns were
	  treated as invariants has been fixed.
01-09-27  Two bugs relating to multibyte history searches and to find
	  have been fixed.
01-09-27  A bug introduced in ksh93k in which the PATH searching was
	  not restored after running a command with an assignment list 
	  has been fixed.
01-09-26  A bug in which a zero filled field was treated as octal when
	  converted to integer has been fixed.
01-09-26  Yet another bug in the optimization of for loops related to
	  recursive functions with break or continue statements has been fixed.
01-09-25  The exponentiation operator ** was added to the shell arithmetic
	  evaluation.  It has higher precedence than * and is left
	  associative.
01-09-25  The code was modified to use the ast multibyte macros
	  and functions for handing multibyte locales.
01-09-25  The expansion ${parameter:offset:length} now handles negative
	  offsets which cause offsets to be measured from the end.
01-09-25  Some spelling errors in the documentation were corrected.
01-09-24  The /dev/tcp/host/port and /dev/udp/host/port now allow
	  the ports to be specified by service name. 
01-09-24  The change staring with ksh93g in which the the appropriate
	  library path variable is prepended with a corresponding library
	  directory has been modified.  With the new method, only the
	  library path defined in the file named .paths in the directory
	  where the executable is found will be modified.  See the
	  man page for more details.
01-09-23  The .fpath file (see ksh93h) is no longer looked for in each
	  directory on the path to locate function directories.  The
	  file named .paths is used instead.
01-09-23  A bug in which IFS was not being restored after being changed in
	  a subshell has been fixed.
01-09-16  With the vi and emacs edit modes, after a list of command
	  or functions is generated with = or M-= respectively,
	  any element from the list can be pasted on the command line
	  by preceding the = or M-= with a numeric parameter specifying
	  the position on the list.
01-09-16  A bug in ksh93l caused command completion not to find aliases
	  and functions.  Command listing from the edit mode was presented
	  in reverse order.  This has been fixed.
01-09-13  Another bug in the optimization of for loops related to subshells
	  when traps were set has been fixed.
01-09-07  A change in ksh93l caused brace expansion to stop working
	  and this has been fixed.
01-09-04  A bug introduced in ksh93k in which an arithmetic statement
	  within a function that used name references did not follow the
	  reference has been fixed.
01-09-04  A bug introduced in ksh93l in which export -p did not prefix
	  each export with the word export has been fixed.
01-08-29  A bug in multibyte input which occurred when a partial multibyte
	  character was received has been fixed.
01-08-29  A bug introduced in ksh93l which could cause a core dump
	  when an assignment list containing PATH is specified inside
	  command substitution has been fixed.
01-08-09  Another bug in the optimization of for loops in ksh93l caused
	  errors in recursive functions using local variables that
	  contained for loops has been fixed.
01-07-27  A bug in which IFS would be unset after a command substitution
	  inside a here document has been fixed.
01-07-26  To conform to the POSIX standard, if you invoked ksh name,
	  and name does not contain a /,  it will first try to run
	  one in the current directory whether it is executable or not
	  before doing a path search for an executable script.  Earlier
	  versions first checked for an executable script using the
	  PATH variable.
01-07-23  A bug in which unset -f invoked in a subshell could unset a
	  function defined in the parent has been fixed.
01-07-16  A bug in the optimization of for loops in ksh93l caused
	  name references to be treated as invariants has been fixed.
01-07-09  A bug in which a discipline function applied to a local variable
	  could cause a shell exception has been fixed.  Discipline
	  functions can only be specified for global variables. 

01-06-18  --- Release ksh93l  ---
01-06-18  A bug in assigning integers larger than can be represented as
	  long integers to floating point variables has been fixed.
01-06-18  A bug in the handling of unsigned integers (typeset -ui) has
	  been fixed.
01-06-04  The evaluation of the PS1 prompt no longer effects the value
	  of the $? variable.
01-06-01  A small memory leak from subshells has been fixed.
01-05-22  A bug in which attributes for variables that did not have
	  values would be lost after a subshell has been fixed.
01-05-22  The %R format has been added to convert a shell pattern into
	  an extended regular expression.
01-05-22  The escape sequences \e, \cX, \C[.collating-element.], and
	  \x{hex} have been added to ASCII-C strings and to printf format
	  strings.
01-05-20  Patterns of the form {n}(pattern) and {m,n}(pattern) are now
	  recognized.  The first form matches exactly n of pattern whereas,
	  the second form matches from m to n instances of pattern.
01-05-20  The shell allows *-(pattern), +-(pattern),  ?-(pattern),
	  {m,n}-(pattern}, and @-(pattern) to cause the minimal
	  match of pattern to be selected whenever possible rather
	  than the maximal (greedy) match. 
01-05-20  The character class [:word:] has been added to patterns.
	  The word class is the union of [:alnum:] and the character _.
01-05-20  Inside (...) pattern groups, the \ character is now treated
	  specially even when in an enclosing character class.  The
	  sequences, \w, \d, \s are equivalent to the character classes
	  word, digit, and space respectively.  The sequences \W, \D,
	  and \S are their complement sets. 
01-05-20  The shell now recognizes pattern groups of the form
	  ~(options:pattern) where options or :pattern can be omitted.
	  Options use the letters + and - to enable and disable options
	  respectively.  The option letters g (greedy), i (ignore case)
	  are used to cause maximal matching and to cause case
	  insensitive matching respectively.  If :pattern is also
	  specified, these options are only in effect while this
	  pattern is being processed.  Otherwise, these options remain
	  in effect until the end of the pattern group that they are contained
	  in or until another ~(...) is encountered.  These pattern groups
	  are not counted with respect to group numbering.
01-05-14  When edit completion, expansion, or listing occurs in the
	  middle of a quoted string, the leading quote is ignored when
	  performing the completion, expansion, or listing.
01-05-14  A small memory leak from subshells has been fixed.
01-05-10  A bug in which open files were not restored after a subshell
	  that had used exec to replace a file has been fixed. 
01-05-10  Redirection to a null file name now generates an error message. 
01-05-09  The shell now rejects some invalid parameter substitutions that
	  were previously processed in undefined ways.
01-05-09  A bug in which the output of select was not flushed before the
	  read when input did not come from the terminal has been fixed. 
01-05-08  A bug in which job ids would not be freed for interactive shells
	  when subshells ran built-ins in the background has been fixed.
01-05-08  The FPATH variable now requires an explicit . to cause the
	  current directory to be treated as a function directory. 
01-05-08  A bug in read -n when echo mode was disabled has been fixed.
01-05-07  A bug in which function definitions could be listed as part
	  of the history has been fixed.
01-04-30  This release uses a new and often much faster pattern matcher than
	  earlier releases.
01-04-30  An optimizer now eliminates invariant parameter expansions from
	  for while and until loops.
01-04-30  The variable .sh.match is set after each pattern match (# % or /)
	  in a variable substitution.  The variable .sh.match is an
	  indexed array with element 0 being the complete match. 
	  The array is only valid until the next subsequent pattern
	  match or until the value of the variable changes which ever
	  comes first.
01-04-30  A self generating man page has been added to shcomp.  Also,
	  shcomp now stops compiling when it finds an exit or exec
	  command and copies the remainder so that it can be used
	  for standard input.
01-04-30  The shcomp command was modified so that it can work in an
	  EBCIDIC environment and that binary scripts are portable
	  across environments.
01-04-30  A bug in the handling of a trailing : in PATH has been fixed.
01-04-30  A bug in which the builtin version of a command would get invoked
	  even though the full pathname for the command was specified
	  has been fixed.
01-04-30  A bug in which read would loose the last character when
	  reading the last line of a file that did not contain a new-line
	  character has been fixed.
01-04-23  A bug on some systems in which in vi mode the end of file
	  character and end of line character could be swapped has
	  been fixed.
01-04-23  A bug on some systems in which invoking a shell script that
	  did not have execute permission could set the exit value to
	  127 rather than 126 has been fixed.
01-04-20  A bug in which read -n from a pipe would block if fewer than
	  n characters was received has been fixed.
01-04-09  A bug in which invalid patterns, for example, ) by itself,
	  was not treated as a string has been fixed so that if i=')',
	  then [[ $i == $i ]] is true.
01-04-09  The shell arithmetic now interprets C character constants.
01-04-09  A bug in which a non-zero return from a function defined
	  with the function reserved word did not trigger the ERR
	  trap or exit with set -e has been fixed.
01-04-02  A bug on some systems, in which characters above 127 were
	  not displayed correctly in vi or emacs edit mode has been fixed.
01-04-02  A bug on some systems, introduced in the 'k' point release, in
	  which the erase character in viraw mode was moving the cursor
	  to the left without erasing the character has been fixed.
01-04-02  On some systems the wcwith() function was returning a wrong
	  value for characters and caused characters to be displayed
	  incorrectly from the shell edit modes.  A work around for
	  this problem has been added. 
01-03-26  A bug in which valid scripts could produce syntax errors
	  when run with locales that considered characters such as "'"
	  to be space characters has been fixed.
01-03-20  A bug in which an syntax error in an arithmetic expression
	  entered interactively could cause the shell to go into
	  an infinite loop outputting the error message has been fixed.
01-03-10  ksh93 accepts -l as a synonym for -L in test on systems for
	  which /bin/test -l tests for symbolic links.
01-03-10  A bug in parsing scripts in which { and } are used in place of
	  in and esac in case statements embedded in compound commands
	  has been fixed.  Use of { and } for in and esac is obsolete.
01-03-06  A bug in which an argument of the form foo=bar was not
	  being passed correctly to a traced function whose name
	  was foo has been fixed.
01-03-02  Using $(trap -p name) did not print the name of the current
	  trap setting for trap name.
01-02-26  Exported floating point variables gave incorrect results
	  when passing them to ksh88.  This has been fixed.
01-02-25  A race condition in which a coprocess which completed too quickly
	  would not allow subsequent coprocesses to start has been fixed.
01-02-25  The 'g' format specifier is now handled by printf.  It had
	  inadvertently been omitted.
01-02-20  The + was not being displayed during an execution trace
	  with the += assignment operator.
01-02-19  The error message which occurs when the interpreter name
	  defined on the #! line does not exist is more informative.
01-02-19  A bug in which $0 would not be set correctly when a
	  script with #! was invoked by full pathname from the
	  directory of the script has been fixed.
01-02-19  A shell script did not always pick up tty mode changes
	  made by external commands such as stty which could
	  effect the behavior of read.
01-02-19  The -u, -g, and -k unary tests did not give the correct
	  results when used with negation and this has been fixed.

01-02-05  --- Release ksh93k+  ---
01-02-05  The sequence \<newline> inside $'...' was not incrementing
	  the line count and this has been fixed.
01-02-05  Modified expansion of "${@-}" so that if no arguments are set
	  it results in null string rather than nothing.
01-02-02  memory leak problem with local variables in functions fixed.
01-01-25  allow arithmetic expressions with float%int and treat them
	  as ((int)float)%int rather than as an error. 
01-01-19  read -n1 was not working and has been fixed.
01-01-17  ksh now handles the case in which a here document in command
	  substitution $() is terminated by the trailing ).  Previously,
	  a new-line was needed at the end of the delimiter word. 
01-01-02  A bug in which a KEYBD trap would cause a multi-line token
	  to be processed incorrectly has been fixed.
00-12-10  Arithmetic integer constants can now have L and U suffices. 
00-12-10  A bug in the processing of arithmetic expressions with compound
	  variables when the -n option is on has been fixed.
00-12-08  A bug in M-f and M-b from emacs mode has been fixed.  This
	  bug only occurs when ksh93 is compiled without MULTIBYTE enabled.
00-11-29  A bug in which jobs -p would yield 0 for background
	  jobs run in a script has been fixed.
00-11-21  A bug in integer arrays in which the number of elements is
	  incorrect when the ++ operator is applied to a non-existing
	  element has been fixed.  For example, integer x; ((x[3]++)).
00-11-20  A timing bug in which the shell could reset the terminal
	  group to the wrong value in the case that the a new process
	  changes the terminal group during startup has been fixed.

00-10-27  --- Release ksh93k  ---
00-10-27  Using tab for completion now works only when applied
	  after a non-blank character at the end of the current line.
	  In other case a tab is inserted.
00-10-27  A bug in the emacs edit mode for ^X^E has been fixed.
	  The ^X^E sequence is supposed to invoke the full editor
	  on the current command.
00-10-18  A bug in which expansions of the form ${var//pattern/string}
	  did not work correctly when pattern was '/' or "/" has
	  been fixed.
00-10-18  The output format for indexed arrays in compound variables
	  has been modified so that it can be used as input.
00-10-18  Assignments with name references (typeset -n) will now
	  implicitly unreference an existing name reference.
00-10-17  A bug the += append operator when a single array element
	  is appended to a variable that is not an array has been fixed.
00-10-16  A bug in which the SIGCONT signal was being sent to
	  each process will kill -0 or kill -n 0 has been fixed.
00-10-12  The arithmetic evaluation portion has been rewritten to
	  perform a number of optimizations.
00-10-10  A bug in which name prefix matching ${!name.*} was not
	  checking name to see if it was a name reference has been fixed.
00-09-26  A bug in the multibyte version in which the width of for
	  non-printing characters was not correct has been fixed.
00-09-12  Made changes to get multibyte editing work on UWIN for windows
00-09-12  A bug in which multibyte characters would be displayed incorrectly
	  has been fixed.
00-08-08  Removed build dependency on iswprint() and iswalph().
00-07-20  In some cases the read builtin would read more than a single
	  line from a pipe on standard input and therefore leave the seek
	  position in the wrong location.
00-07-05  If the directory / is on the path, a / will not be inserted
	  between the directory and the file name during path searching
	  to avoid searching // for systems that treat this specially.
00-06-26  A bug in which on rare occasions wait could return before all
	  jobs have completed has been fixed.
00-06-21  A bug in which backspace did not work correctly during the
	  R replace directive in vi-mode has been fixed.
00-06-12  Added variable name completion/expansion/listing  to the set of
	  completions.  Variable name completions begin with $ or "$ followed
	  by a letter. 
00-05-09  --- Release ksh93j  ---
00-05-09  Modified command substitution to avoid using /tmp files when
          run on read-only file systems. 
00-04-17  Modified printf to handle '%..Xc' and '%..Xs' options where X
	  is not an alpha character.  Previous versions core dumped with this.
00-04-10  Changes to multibyte editing code were made to use standard
	  ISO C functions rather than methods devised before the standard.
00-04-09  Add %H options to printf to output strings with <"'&\t> properly
	  converted for use in HTML and XML documents.
00-04-07  Modified getopts builtin to handle \f...\f in usage string
	  by invoking specified function.
00-04-04  Added self generating man pages for bg, fc, fg, disown, jobs,
	  hist, let, ., and ulimit.
00-03-30  The append operator += has been added and can be used
	  for all assignments, strings, arrays, and compound variables.
00-03-30  Code was modified in several places to support automatic
	  generation of C locale dictionaries.
00-03-28  A bug in which the set and trap commands invoked with --name
	  type arguments would terminate the invoking script  has
	  been fixed.
00-03-27  A bug in which the library path variable was not updated  
	  correctly on some systems as described in the 'g' point
	  release has been fixed. 
00-03-07  printf now returns a non-zero exit status when one of
          its arguments cannot be converted to the given type. 
00-03-05  The return value and error message for a command that
          was found on the path but was not executable was set
          incorrectly.
00-03-05  A prototype for ioctl() was removed from the vi edit mode.

00-01-28  --- Release ksh93i  ---
00-01-28  Most of the built-in commands and ksh itself are now
          self documenting.  Running command --man will produce
          screen output.  Running command --html produces the
          man page in html format.
00-01-28  The getopts builtin can process command description
          strings to produce man pages.
00-01-28  A bug in which a script could terminate when getopts
          encountered an error when invoked inside a function
          has been fixed.
00-01-28  When a symbolic link was specified as the name of
          the script to invoke by name, the value of $0 was
          set to the real file name rather than the link name
          in some cases and this has been fixed.
00-01-28  A bug in which the precision given as an argument
	  to printf was not working has been fixed.

99-03-31  --- Release ksh93h  ---
99-03-31  The PATH search algorithm has been modified to look
	  for a file named .fpath in each bin directory and if
	  found, to search for functions in this directory if
	  it cannot find the command in that directory.
99-03-31  When performing pathname expansion, the shell checks
	  to see whether each directory it reads is case sensitive
	  or not, and performs the matching accordingly.
99-03-31  The %T format for printing formatted date/time.
99-03-31  The emacs and vi modes now handle arrow keys when
          they use standard ANSI escape sequences.
99-03-31  The TAB key can be used for completion in emacs and viraw mode.
99-03-31  A bug in setting .sh.editchar during the KEYBD trap
	  for the MULTIBYTE option was fixed in release ksh93h.
99-03-31  A bug in shcomp for compilation of unary operators with [[...]]
	  has been fixed.
99-03-31  A bug in which the value of $? was changed when executing
	  a keyboard trap has been fixed. 
99-03-31  The handling of SIGCHLD has been changed so that the
	  trap is not triggered while executing trap commands
	  to avoid recursive trap calls.
99-03-31  A bug in which a local variable in a function declared readonly
	  would generated an error when the function went out of
	  scope has been fixed.
99-03-31  A bug in which \<new_line> entered from the keyboard
	  with the KEYBD trap enabled has been fixed.
99-03-31  The error message for a misplaced ((, for example print ((3),
	  was often garbled and has been fixed.
99-03-31  A bug in the KEYBD trap in which escape sequences of the form
	  <ESC>[#~ were not being handled as a unit has been fixed.
99-03-31  A bug in which ksh would consider expressions like [[ (a) ]]
	  as syntax errors has been fixed.
99-03-31  A function defined as foo() without a function body
	  was not reported as a syntax error.
99-03-31  A bug in which ksh could run out of file descriptors when
	  a stream was repeatedly opened with exec and read from
	  has been fixed.

98-04-30  --- Release ksh93g  ---
98-04-30  The pipefail option has been added.  With pipefail
	  enabled, a pipeline will not complete until all
	  commands are complete, and the return value will
	  be that of the last command to fail, or zero if
	  all complete successfully.
98-04-30  The name-value pair library uses the cdt library rather
	  than the hash library.  This change should be transparent
	  to applications.
98-04-30  On the U/WIN version for Window 95 and Windows NT,
          when a directory beginning with a letter followed by
          a colon is given to cd, it is assumed to be an absolute
          directory
98-04-30  When an executable is found on a given path,
	  the appropriate library path variable is prepended
	  with a corresponding library directory.
98-04-30  A bug in which a name reference could be created to
	  itself and later cause the shell to get into an infinite
	  loop has been fixed.
98-04-30  A bug in shcomp relating to compound variables was fixed.
98-04-30  A bug introduced in ksh93e in which leading 0's in -Z
	  fields caused the value to be treated as octal for arithmetic
	  evaluation has been fixed.
98-04-30  A bug when a name reference with a shorter name than
          the variable it references was the subject of a compound
	  assignment has been fixed. 
98-04-30  A bug which in which assignment to array variables in
	  a subshell could effect the parent shell has been
	  fixed.
98-04-30  read name?prompt was putting a 0 byte at the end of the
	  prompt on standard error.
98-04-30  A bug in [[ string1 > string2 ]] when ksh was run with -x
	  has been fixed.
98-04-30  A bug in which the escape character was not processed
	  correctly inside {...} when brace expansion is enabled
	  has been fixed, for example {\$foo}.
98-04-30  A bug in line continuation in here-documents has been
	  fixed.
98-04-30  The default base when not specified with typeset -i is
	  10 in accordance with the documentation.  Previously,
	  the value was determined by the first assignment.   
98-04-30  A parsing bug in which a # preceded alphanumeric
	  characters inside a command substitution caused
	  a syntax error to be reported has been fixed.
98-04-30  A bug in which a decimal constant represented as 10#ddd
	  where ddd was more than five digits generated a syntax
	  error has been fixed.
98-04-30  A bug in here document expansion in which ${...} expansions
	  were split across buffer boundaries has been fixed.
98-04-30  The sh_fun() function now takes third argument which
	  is an argument list for the invoked discipline function
	  or built-in.
98-04-30  A callback function can be installed which will give
          notification of file duplications and file closes.
98-04-30  When ksh is compiled on systems that do not use fork()
	  current option settings where not propagated to sub-shells.

97-06-30  --- Release ksh93f  ---
97-06-30  Hostnames in addition to host addresses can be given in
	  /dev/tcp/host/port virtual file names.
97-06-30  File name completion and expansion now quotes special
	  characters in file names from both emacs and vi edit modes.
97-06-30  An empty for list behave like a for list with null expansions.
	  It produces a warning message with sh -n.
97-06-30  The code has been modified to work with EBCDIC as well as ASCII.
97-06-30  A bug which would cause the secondary prompt to be
	  displayed when a user entered a literal carriage
	  return has been fixed.
97-06-30  A bug which caused ksh read -s name to core dump was
	  fixed.
97-06-30  A bug with the expansion of \} and \] inside double
	  quoted strings that also contained variable expansions
	  has been fixed
97-06-30  Changes in the ksh93e point release caused autoload
	  functions invoked from within command substitution
	  to fail.  This has been fixed.
97-06-30  A bug in the processing of here-documents that could
	  prevent variable substitution to occur after $(...) command
	  substitution for long here documents has been fixed.
97-06-30  A bug caused by a race condition that could cause SIGTERM
	  to be ignored by a child process has been fixed.
97-06-30  A bug which prevented the startup of a coprocess immediately
	  after killing a running coprocess has been fixed.
97-06-30  ulimit foobar, where foobar is not an arithmetic
	  expression, now gives an error message as it did with ksh88
	  instead of setting the file size limit to 0.
97-06-30  A bug which could cause an interactive shell to terminate when
	  the last process of a pipeline was a POSIX function was fixed.
97-06-30  A bug which could cause command substitution of a shell script
	  to core dump has been fixed.
97-06-30  A security hole was fixed in suid_exec.
97-06-30  Arithmetic functions such as pow() that take more than
	  one argument, did not work if arguments other than the
	  first contained parenthesized sub-expression.
97-06-30  The error message from a script containing an incomplete
	  arithmetic expression has been corrected.
97-06-30  A bug which caused a core dump on some machines when
	  the value of a name reference contained a positional
	  parameter and the name reference was not defined inside
	  a function has been fixed.
97-06-30  Arithmetic expressions now correctly handle hexadecimal
	  constants.
97-06-30  A bug in which integer variables could be expanded
	  with a leading 10# when declared with typeset -i
	  multiple times has been corrected.
97-06-30  A bug in which IFS wasn't correctly restored when
	  set within command substitution has been fixed.
97-06-30  The _ character is now considered as part of a word
	  with the M-f and M-b emacs directives as it was in ksh88.
97-06-30  A bug in brace pattern expansions that caused expressions
          such as {foo\,bar,bam} to expand incorrectly have been fixed.


96-07-31  --- Release ksh93e  ---
96-07-31  The math functions, atan2, hypot, fmod, and pow were added.
96-07-31  When a shared library is loaded, if the function lib_init()
	  is defined in the library, it is invoked the first time that
	  the library is loaded with builtin -f library.
96-07-31  The k-shell information abstraction database option, KIA,
          has been revamped.
96-07-31  Empty command substitutions of the form $() now work.
	  whence -v foo now gives the correct result after calling
	  builtin -d foo. 
96-07-31  A bug in right to left arithmetic assignment for which
	  the arithmetic expression (( y = x = 1.5 )) did not
	  yield 1 for y when x was declared typeset -i was fixed.
96-07-31  printf has been fixed to handle format  containing \0
	  and/or \0145 correctly.  In addition, characters following
	  %b in the format string are no longer displayed when
	  the operand contains \c.
96-07-31  A bug in printf that could cause the %E format to
	  produce unnormalized results has been fixed.
96-07-31  A bug which causes some arithmetic expressions to be
	  incorrectly evaluated as integer expressions rather
	  that floating point has been fixed.
96-07-31  Functions defined inside a subshell no longer remain
	  defined when the subshell completes.
96-07-31  The error message from sh -c ';echo foo' has been
	  corrected.
96-07-31  The format for umask -S has been changed to agree
	  with the specification in the POSIX standard.
96-07-31  A bug that caused side effects in subscript evaluation
	  when tracing was enabled for subscripts using ++ or --
	  has been fixed.
96-07-31  To conform to the Posix standard getopts has been changed
	  so that the option char is set to ? when it returns with
	  a non-zero exit status.
96-07-31  The handling of \} inside ${name...} has been fixed so
	  that the \ quotes the }.
96-07-31  A bug that caused the read builtin to resume execution
	  after processing a trap has been fixed.
96-07-31  [[ -s file ]] has been fixed so that if file is open
	  by ksh, it is flushed first.
96-07-31  In some cases attributes and sizes for non exported
	  variables weren't being reset before running a script.
96-07-31  The value of TMOUT was affected by changes make to
	  it in a subshell.
96-07-31  The jobs command did not reflect changes make by
	  sending the CONT signal to a command.
96-07-31  The error message for ksh -o unknown was incorrect.
96-07-31  Functions invoked as name=value name, did not use
	  values from the calling scope when evaluating value.
96-07-31  A bug in which the shell would reexecute previously
	  executed code when a shell script or coprocess was
	  run in the background has been fixed.
96-07-31  A bug in which an empty here-document would leave
	  a file descriptor open has been fixed.
96-07-31  A bug in which $(set -A array ...) would leave a
	  side effect has been fixed.
96-07-31  A discipline function for a global variable defined
	  within a function defined with the function keyword,
	  incorrectly created a local variable of the same name
	  and applied the discipline to it.

95-08-28  --- Release ksh93d  ---
95-08-28  The \ character was not handled correctly in replacement
	  patterns with ${x/pattern/replace}.
95-08-28  A bug with read in which the line did not end with
	  a new-line has been fixed.
95-08-28  A bug in file name generation which sometimes
	  appended a . for filenames that ended in / has
	  been fixed.
95-08-28  If a process is waited for after a status has
	  been returned by a previous wait, wait now
	  returns 127.
95-08-28  A bug with hist (fc) -e which prevented a command
	  to re-executed after it had been edited has been fixed.
95-08-28  A bug which prevented quoting from removing the meaning
	  of unary test operators has been fixed.
95-08-28  A bug with typeahead and KEYBOARD traps with the
          MULTIBYTE option set has been fixed.
95-08-28  Builtin functions can take a third argument which is
          a void*.
95-08-28  The nv_scan() function can restrict the scope of a walk
          to the top scope.

95-04-31  --- Release ksh93c  ---
95-04-31  The expansion of "$@" was incorrect when $1 was the null
	  string.
95-04-31  A bug which could incorrectly report a syntax error in
	  a backquoted expression when a $ was preceded by \\
	  has been fixed.
95-04-31  A bug which prevented the shell from exiting after
	  reporting an error when failing to open a script
	  has been fixed.
95-04-31  A bug that could lead to memory corruption when a
	  large here document that required parameter or command
	  substitution was expanded has been fixed.
95-04-31  A bug that could cause a core dump on some systems
	  after ksh detected an error when reading a function
	  has been fixed.
95-04-31  A bug which could cause a coprocess to hang when
	  reading from a process that has terminated has been fixed.
95-04-31  A bug which caused a script to terminate when set -e
	  was on and the first command of and && or || list
	  failed has been fixed.
95-04-31  A bug with here documents inside $(...) when the delimiter
	  word is an identifier has been fixed.
95-04-31  A bug which caused $0 to display the wrong value when
	  a script was invoked as an argument to the . command
	  and the eval command has been fixed.
95-04-31  A bug that could cause the built-in sleep to hang
	  has been fixed.
95-04-31  A bug introduces in 12/28/93b which caused the backslash
	  to be removed when it was followed by digit inside double
	  quotes in some instances has been fixed.
95-04-31  A bug which could cause a core dump if ksh was invoked with
	  standard input closed has been fixed.
95-04-31  A bug which could cause a core dump if typeset -A was
	  specified for an existing variable has been fixed.
95-04-31  Variables that were unset but had attributes such as readonly
	  and export were not listed with readonly, export and typeset.
95-04-31  Several problems with signals have been fixed.
95-04-31  A bug which prevented ulimit -t from working has been fixed. 
	  Also, a bug in which failed ulimits could cause a core dump
	  has also been fixed.
95-04-31  A bug in expansion of the form ${name/#pattern/string} and
	  ${name/%pattern/string} has been fixed.
95-04-31  A bug which caused read -r on a line that contained only
	  blanks to get a non-null value has been fixed.
95-04-31  A bug introduced in the 'a' point release in which
	  ${x='\\'} expanded to \ when x was unset has been fixed.
95-04-31  A bug which prevented a trap on EXIT from being executed
	  when the last command in a script was a function invocation
	  has been fixed.
95-04-31  A bug which caused an interactive shell ignore input when
	  standard error was redirected to a file with exec,
	  and then restored with exec 2>&1 has been fixed.
95-04-31  An interactive shell turns on monitor mode even when
	  standard error has been redirected to a file.
95-04-31  A bug which could cause standard input to be incorrectly
	  positioned for the last command of a script has been fixed.
95-04-31  A bug in the edit modes which allowed walking back in
	  the history file for more than HISTSIZE commands has
	  beed fixed.
95-04-31  A bug which could cause a core dump if variable TMPDIR was
	  changed between two command substitutions has been fixed.
95-04-31. A bug which prevented a trap on EXIT from being cleared
	  has been fixed.
95-04-31  A bug fixed for the v directive in vi MULTIBYTE has been
          fixed.
95-04-31  Code to for IFS handling of multibyte characters has
          been added.
95-04-31  The displaying of multibyte strings in export, readonly,
          typeset, and execution traces has been fixed.
95-04-31  Variables inside functions are now statically scoped.
	  The previous behavior was never documented.
95-04-31  Variables inside functions are now statically scoped.
          The previous behavior was never documented.
95-04-31  A few changes have been made to the name-value library
          that affect built-ins that use disciplines.  The
          changes allow disciplines to be shared by variables
          and should make it possible to add new disciplines
          without recompilation.
95-04-31  The name-value library interface has undergone significant
          change for this revision.  See the new nval.3 man page.

94-12-31  --- Release ksh93b  ---
94-12-31  Variables inside functions are now statically scoped.
          The previous behavior was never documented.
94-12-31  If IFS contains two consecutive identical characters belonging
	  to the [:space:] class, then this character is treated as
	  a non-space delimiter so that each instance will delimit
	  a field.  For example, IFS=$'\t\t' will cause two consecutive
	  tabs to delimit a null field.
94-12-31  The getopts command has a -a name option that specifies a
	  name that will be used for usage messages.
94-12-31  A bug which caused unset RANDOM to dump core has been
	  fixed.
94-12-31  A bug which prevented return for terminating a profile
	  or ENV file has been fixed.
94-12-31  A bug which prevented standard input from being
	  directed to /dev/null for background jobs when
	  monitor mode was turned off has been fixed.
94-12-31  Statements of the form typeset -options var[expr]=value
	  did not perform substitutions on expr as expected.
94-12-31  A bug which prevented the shell from sending a HUP
	  signal to some background jobs that were not disowned
	  has been fixed.
94-12-31  A bug which allowed a script to trap signals that are
	  ignored at the time that the shell was invoked by exec
	  has been fixed.
94-12-31  A bug which could cause a core dump when a discipline
	  function was unset within a discipline was fixed.
94-12-31  The typeset builtin now accepts a first argument of
	  + or - for compatibility with ksh88.
94-12-31  For compatibility with ksh88, the results of expansions
	  of command arguments will treat the extended character
	  match characters ()|& as ordinary characters.
94-12-31  A bug which caused read to fail on a file that was
	  open for read/write with <> when the first operation
	  was print or printf has been fixed.
94-12-31  When a job is suspended, it is put on the top of
	  the job list as required by the POSIX standard.
94-12-31  The value of OPTARG when an option that required
	  an argument but didn't have one was incorrect in the
	  case the the option string began with a :.
94-12-31  A bug which caused the terminal to get into a bad
	  state with some KEYBD traps in vi-mode has been fixed.
94-12-31  A bug which caused an invalid trap to cause a script
	  to terminate, rather than just return an error, has
	  been fixed.
94-12-31  Backreferencing sub-expressions in patterns and replacement
	  strings now works.
94-12-31  A bug in chmod which caused the -R option to fail has
	  been fixed.
94-12-31  More signal names have been added for Solaris

94-06-30  --- Release ksh93a  ---
94-06-30  An expansion bug which causes portions of a word after
	  a $((...)) expansion that contains a nested $var expansion
	  to be lost has been fixed.
94-06-30  A bug that caused a core dump when a script that did not
	  have PWD set and did a cd inside command substitution
	  has been fixed.
94-06-30  A bug which caused a core dump on some machines when
	  the LANG variable was assigned to has been fixed.
94-06-30  A bug which incorrectly handled set disciplines that
	  performed arithmetic evaluation when the discipline
	  was called from the arithmetic evaluator has been fixed.
94-06-30  A bug caused by an EXIT trap inside a function that
	  was executed in a subshell was fixed.
94-06-30  If foo is a function, and not a program, then command foo
	  now reports that foo isn't found rather than invoking foo.
94-06-30  The previous version incorrectly listed -A as an
	  invocation option.  The -A option is only for set. 
94-06-30  A bug was fixed which caused ksh to loop when execution trace
	  was enabled and the PS4 prompt required command substitution.
94-06-30  A bug which could cause the job control switch character
	  to be disabled when a script that enabled monitor mode
	  terminated was fixed.
94-06-30  A bug in the macro expansion global replacement operator //,
	  when the pattern began with a [ or +( has been fixed.
94-06-30  A bug which prevented ~ expansion from occurring when
	  it was terminated with a colon inside an assignment
	  has been fixed.
94-06-30  A bug in the dot command which prevented autoload functions
	  from working has been fixed.
94-06-30  A bug which caused a variable to be unset if the
	  its value were expanded inside a set discipline has
	  been fixed.
94-06-30  Whence -a now longer reports that a defined function
	  is undefined.
94-06-30  A bug on some systems in which $0 would be incorrect
	  in scripts invoked by name has been fixed.
94-06-30  Here documents with an empty body now work.
94-06-30  A bug which disabled argument passing and resetting
	  of options for a script invoked by name inside a
	  function has been fixed.
94-06-30  A bug in which an EXIT trap set the caller of a function
	  would be executed if a command called inside a function
	  was not found has been fixed.
94-06-30  A bug which allowed a script to trap signals that are
	  ignored at the time that the shell was invoked has
	  been fixed.
94-06-30  A bug which caused 2<&1- when applied to a shell built-in
	  to leave standard input closed has been fixed.
94-06-30  A bug which caused the shell to incorrectly parse
	  $() command substitutions with nested case statements
	  has been fixed.


:::::::: libast ::::::::

04-02-29 comp/omitted.c: move env trace after PATH fixup
	 comp/omitted.c: cygwin spawn _P_DETACH => _P_NOWAIT+setpgid(pid,0)
	 misc/optget.c: fix html mailto: match
	 port/astlicense.c: add type=test for fixed 2001 date
	 features/float: check local NaNQ first
	 vmalloc/vmhdr.h: fix _vmextern_ vm_truncate return type
	 misc/magic.tab: add elf s390 index=22
04-02-26 vmalloc: VMCHECK a:assertions c:arena-check w:warn-instead-of-abort
	 sfio/sfvscanf.c: fix extf arg selection
04-02-24 features/dirent: set nodefine to avoid ast_std.h _typ_off64_t undef
	 disc/sfkeyprintf.c: only case pattern must be ()[] balanced
04-02-14 include/sfio_t.h: add SF_DCDOWN, SFDCNEXT(), SFDCPREV()
04-02-13 string/strmatch.c: fix bug that didn't save one-time sub[] size
	 vmalloc: -g: export VMCHECK=1 enable malloc/free checks
	 vmalloc: -g: free(0) to check and disable malloc/free checks
	 vmalloc: -g: free(1) to check and enable malloc/free checks
04-02-11 Makefile: add :P=A: to conf and lcgen exec for cross-compile
	 regex: use MBSIZE() instead of mbsize() to grab 1 char on err
	 vmalloc/vmbest.c: updated to do more comprehensive DEBUG tests
04-02-04 sfio/sfraise.c: add sfraise(0,a,b) to iterate over all streams
04-02-01 vmalloc/vmbest.c: _BLD_DEBUG free(0) checks the arena
04-01-31 features/vmalloc: fix typo that missed _mmap_zero
04-01-23 string/strerror.c: handle real strerror() return value overwrite
04-01-11 path/pathpath.c: fix size vs. sizeof(buf) typo
03-12-22 misc/magic.tab: dos EXE tweaks
03-12-05 vmalloc: sync with kpv, adding exceptf announcements
03-12-04 port/astlicense.c: fix expand() loop sentinel bug
03-12-02 include/ast.h: mbchar() advances by 1 on mbtowc() error
	 misc/fts.c: increase MINNAME to 32
03-11-21 vmalloc/vmbest.c: export VMCHECK=1 to enable $(CC.DEBUG) vmcheck()
         vmalloc/vmbest.c: export VMCHECK=2 to disable KPVCOMPACT
	 misc/magic.c: add { cobol copybook pl1 } and suffix preference
03-11-12 features/stdio: drop cuserid,getopt for SUSV3
03-11-11 vmalloc/*: merge kpv update -- this should stomp the compaction bug
03-10-23 comp/iconv.c: fix sfreserve lock fallback
03-10-20 sfio/_sfopen.c: add to allow user sfopen() intercept
03-10-17 regnexec.c: fix exec time REG_LEFT, \x.... => wctomb()
03-10-12 string/strtoi.h: fix strton '.' overconsumption
03-10-12 comp/iconv.c: identity is always (iconv_t)0
03-10-09 string/fmtesc.c: fix FMT_SHELL to check for all shell magic chars
03-10-01 port/astlicense.c: unknown authors copied verbatim (instead of ignored)
03-09-30 string/chresc.c: handle \u..., \x... consumes all trailing hex digits
	 string/stresc.c: \u... and \x... > UCHAR_MAX => wctomb()
03-09-29 fnv.h: add
03-09-23 modedata.c: table is for external modes, so no arch specific hacks
	 optget.c: fix option prefix match translation bug
	 optget.c: add `<length> <name>=<value>\n' to optstr()
	 features/lib: add memcmp() test for sgi optimzation bug
03-09-22 regex.h,regcomp.c: add regncomp()
	 regclass.c: fix for loop dangling ; in regaddclass()
03-09-20 sftable.c,sfvprintf.c: fix SFFMT_CHAR handling to match extf api
03-09-19 sfmode.c: update release to kpv's
03-09-17 regcomp.c: add pedantic backref error checks
03-09-16 regnexec.c: exec time REG_LEFT => don't advance past initial position
	 regclass.c: add regaddclass() for user defined [:class:]
	 regexec.h: REG_VERSION_N2X, add redisc_t {re_map} ccode map
	 regstat.c: add regstat_t
03-09-11 optget.c: --n:=v sets opt_info.assign=':', opt_info.number enabled
03-09-09 disc/sfkeyprintf.c: *pn on lookup is arg separator; lookup "" arg too
03-09-05 optget.c: [f:l*?] preserves user long name past '*' in opt_info.name[]
03-09-03 sfstr.h: add sfstrpend() for #pending bytes in read buffer
03-08-25 regex: add REG_FIRST, optimize bm
	 features/lib: _AST_no_spawnveg==1 falls back to fork/exec
03-08-22 features/stdio,stdio/asprintf.c,stdio/vasprintf.c: add
03-08-21 path/pathnative.c,path/pathposix.c: interix updates
	 features/botched: add cygwin _stat => _stat64
03-08-15 include/ast.h: map out bsd strmode()
	 features/common: add interix _ast_intmax_t workarounds
	 misc/fs3d.c: 3d mount test now uses "" instead of NiL (or cygwin dumps)
03-08-11 string/fmtesc.c: fix optional quoting checks
	 tm/tmdate.c: fix > 1 year of seconds arithmetic
	 tm/tmfix.c: fix leap year adjustments
03-08-01 features/lib: beef up sock_peek test for interix
03-07-29 features/float: add -lm to frexp... test
	 Makefile: fix -lm astmath test sense
03-07-26 features/mem.c: favor _mem_sbrk over _mem_mmap_*
03-07-22 vmalloc/vmbest.c: fall back to sbrk() if mmap() fails
	 features/mem.c: _mem_sbrk means sbrk() and brk() work
03-07-17 regex/regcomp.c: fix bug that treated KRE X{n,m} like {n,m}(X)
	 misc/magic.c: check MAGIC_VERBOSE for all load() messages
03-07-14 misc/optget.c: handle [...]{[...]\f...\f...}
03-06-21 misc/sigcrit.c: block SIGCHLD if _lib_sigprocmask || _lib_sigsetmask
	 comp/spawnveg.c,sfio/sfmode.c: use sigcritical() SIG_REG_* macros
	 comp/spawnveg.c: drop ENOEXEC logic
	 vmalloc/*: snarf kpv KPVCOMPACT() fix
	 vmalloc/vmbest.c: export VMCHECK=2 to disable KPVCOMPACT (just in case)
	 string/strdup.c: drop __strdup() etc. intercepts -- malloc gets it
	 features/mem: define _mem_method and _mem_* possible values
	 vmalloc/malloc.c: _AST_mem_method==_mem_* to force mem get method
	 sfio/sfputr.c: __ia64 memccpy is bogus -- how many tries do they get?
	 path/pathshell.c: verify abs path and access(path,X_OK) -- duh
	 vmalloc/vmhdr.h: add private _Vmessage() for non-sfio ASSERT() 
	 port/astconf.c: fix bug that always returned the minmax value
03-06-11 comp/*.c: reorder macro hding for mvs.390 and <ast_map.h> 
	 features/vmalloc: add _lib_brk and _lib_sbrk verification
	 include/ast_std.h,etc.: add _map_malloc for malloc => _ast_malloc
	 comp/conf.sh: fix SI_* and *_SI_* macro redefs
	 ast.h: VMDEBUG or _BLD_DEBUG enable <vmalloc.h> and VMFL tracing
	 vmalloc/vmtrace.c: _PACKAGE_ast __FUNCTION__ is a string
	 vmalloc/vmtrace.c: set trace file fd FD_CLOEXEC
	 vmalloc/vmbest.c: set /dev/zero mmap fd FD_CLOEXEC
	 features/mmap: fix ancient read() vs. mmap() time arithmetic typo
	 vmalloc/malloc.c: _AST_std_malloc==1 to force standard malloc
03-06-09 comp/omitted.c: add _imp__FUNCTION sybols for __CYGWIN__ static link
	 vmalloc/vmbest.c: handle systems with sbrk() but no brk()
03-06-04 port/astconf.c: drop non-standard diagnostics
03-06-03 comp/conf.sh: rework symbol collision logic
03-05-30 conf.tab,conf.sh,astconf.c: add <sys/systeminfo.h> sysinfo() SI_*
03-05-29 ccode.h: rework for extensibility, drop obsolete mematoe(), memetoa()
03-05-28 regex/*: recode to use isw*() directly when needed, is*() otherwise
03-05-27 features/vmalloc: fix _std_malloc test
03-05-25 misc/optget.c: fix optstr() ???* internal options
03-05-24 misc/optget.c: fix (ancient) argv null dereference
03-05-23 comp/getcwd.c: don't intercept on _WINIX -- unreliable st_ino
03-05-22 sfio/sfsprintf.c: n<0 => don't append '\0'
03-05-18 misc/fts.c: re-stat FTS_DP to update nlink/times 
	 misc/fts.c: add FTSENT.stack to eliminate getlist() recursion
	 regex/ucs_names.h: use "..." catenation to placate some cc's
03-05-11 string/strtoi.h: handle "-" "+" "0x" "11#"
03-05-09 vmalloc/vmbest.c: large memory allocation tweaks
03-05-06 misc/optget.c: fix getopt_long() prefix==1 bug that missed short flags
03-04-27 comp/system.c: handle <ast_map.h>
03-04-24 vmalloc/vmmopen.c: drop dup <unistd.h>
03-04-21 tm/tmdate.c: fix next hour/min logic
03-04-15 vmalloc/malloc.c: intercept __malloc() along with __libc_malloc()
	 string/strdup.c: intercept __strdup() along with __libc_strdup()
	 features/mmap: consolidate from features/(lib|sfio|vmalloc)
	 add _NO_MMAP==1 to disable all mmap()/munmap() calls
	 path/pathposix.c: add
03-04-14 comp/setlocale.c: fix debug_mbtowc() return value for *s==0 || n < 1
	 comp/iconv.c: fix error return errno values
03-04-11 misc/stk.c: fix stkgrow() realloc bug
03-04-05 string/tok.c: support readonly single token input strings
	 disc/sfdcdio.c: fix F_DIOINFO and FDIRECT #ifdef's
	 include/ast_std.h: allow _LARGEFILE64_SOURCE on __hppa
	 features/common: fix `tst _foo_' => `tst foo_' typo
	 features/float: fix `tst _foo_' => `tst foo_' typo
	 features/float: add FLTMAX_(UINTMAX_MAX,INTMAX_MAX,INTMAX_MIN)
	 comp/omitted.c: fix pathconf => _pathconf => _ast_pathconf loop
03-04-03 features/float: add _ast_no_um2fm: no usinged intmax => floatmax cast
	 vmalloc/vmbest.c: add getenv("VMCHECK") to initialize Vmcheck
03-03-28 include/ast_dir.h: add D_TYPE; { D_FILENO D_TYPE } must be #ifdef'd
	 misc/fts.c|getcwd.c|glob.c,preroot/getpreroot.c: add D_FILENO #ifdef's
	 Makefile: make sure _BLD_ast is defined for all compiles
03-03-27 ast_vfork.h: generate from features/vfork to pick up headers/pragmas
03-03-25 comp/omitted.c: drop free() of live environ
	 path/pathshell.c: allow trailing .exe -- pox on that
	 string/strtoi.h: fix bug leading 3 digits before thousands sep bug
	 string/(fmt|str)[gu]id.c: we know root when we see it
03-03-24 misc/optget.c: handle : and ? in := default value
03-03-21 ast_std.h: drop all spawn*() but spawnveg()
	 obsolete/spawn.c: add for dropped spawn*()
	 features/lib: _use_spawnveg if spawnveg() is a win over fork()/exec()
	 features/lib: drop NutForkExecve() and _map_spawnve
	 features/lib: fix memccpy test to clean up /tmp droppings
	 comp/spawnveg.c: call posix_spawn() if implemented
	 comp/omitted.c: add spawnve() intercept
	 comp/getoptl.c: set getopt_long() optind even if no options
	 tm/tmfmt.c: add %Q<delim>recent<delim>distant<delim>
	 misc/optget.c: fix trailing '*' for option and option args
	 sfio/sfmode.c: getenv("_AST_SFIO_OPTIONS") [,]SF_LINE[,] for fd {0,1,2}
	 vmalloc/*: kpv sync for uwin build independent of libast
03-03-18 port/astconf.c: switch to dynamic string values (saves 7K data/bss)
	 string/strmatch.c: switch to dynamic regex cache (saves 3K data/bss)
	 regex/regcoll.c,ucs_names.h: initialize rw tables from smaller ro data
	 features/lib: add vfork test for passing SIG_IGN across exec
	 features/lib: add spawn test for passing SIG_IGN across spawn
03-03-17 comp/omitted.c: unlink() renames to .deleted dir in case file open
	 sfio/sfpopen.c: handle mode "" for spawn with no pipe
	 features/float,comp/frexp.c,comp/frexpl.c: add pow2() table alternative
03-03-12 features/lib: fix linux.ia64 memccpy() tests -- now its their turn
	 features/vmalloc: fix /dev/zero test
	 features/align: _ast_intmax_t and _ast_fltmax_t join the union
	 misc/stk.c: fix struct frame size to align data
	 disc/sfdcdos.c: change sfslen() => sfvalue(f)
03-03-10 misc/optget.c: handle [f\f:x:lll\f?ddd]
03-03-07 port/astconf.c: uninitialized CONFORMANCE + POSIXLY_CORRECT => standard
03-03-05 comp/omitted.c: make sure at least /bin is in PATH to find cygwin dlls
03-03-02 path/pathshell.c: write access to /bin is effectively root
03-02-28 features/float: add (FLT|DBL|LDBL)_U?(LONG|LONGLONG|INTMAX)_(MIN|MAX)
03-02-25 features/lib: change vfork() test to use _exit() instead of exit()
03-02-23 include/error.h: update ERROR_VERSION for error_info.number space
03-02-22 comp/conf.sh: wrap ksh check in eval to avoid premature exit
03-02-21 misc/fts.c: verify chdir(..) to avoid malicious dir rename()
03-02-19 string/strtoip4.c: isspace() instead of ' '||'\t'
03-02-17 regex/regcomp.c: fix stats.l REX_REP logic that botched REX_BM
03-02-13 string/base64.c: handle catenated encodings
03-02-11 features/libpath.sh: change LIBPATH to <dir>[:<env>[:<pat>]][,...]
03-02-07 path/pathfind.c: allow "/dev/null" to be PATH_REGULAR
03-02-06 include/ast.h,fmtquote.c: add FMT_ALWAYS|FMT_ESCAPED|FMT_SHELL|FMT_WIDE
03-02-05 tm/tmdate.c,tm/tmword.c,string/strelapsed.c: '_' treated like ' '
03-02-01 string/strelapsed.c: handle ps style [day-][hour:]min:sec
03-01-31 port/astlicense.c: fix author=* match
03-01-30 include/tm.h: add tmisleapyear() macro
03-01-29 comp/getopt.h,comp/getoptl.c: add gnu getopt_long(), getopt_long_only()
	 include/ast_getopt.h: for non-gnu part of comp/getopt.h
	 include/ast_std.h: include <ast_getopt.h> instead of <getopt.h>
03-01-28 ast.h,string/base64.c: add base64encode() and base64decode()
	 path/pathfind.c: verify S_ISREG()
03-01-24 path/pathexists.c: fix abs dir bug and deal with case ignorance
03-01-23 path/pathpath.c: honor PATH_ABSOLUTE for the easy case too
03-01-22 path/pathprobe.c: fix search to find both the probe script and command
03-01-17 misc/magic.tab: application/zip => appplication/(gzip|pzip|zip)
03-01-14 misc/optget.c: change href="" to href="."
03-01-10 include/ast_std.h: strtold() import hackery for static __CYGWIN__
03-01-03 include/regex.h,regex/regcomp.h: add REG_SHELL_GROUP
	 include/ast.h,string/strmatch.c: add STR_GROUP for REG_SHELL_GROUP
02-12-15 include/error.h: errorcontext => Error_context_s (compatible til 2004)
02-12-06 misc/sigdata.c: add NoF(sigdadata) -- why nmake was uninterruptable!
02-12-03 comp/omitted.c,features/omitted: handle cygwin alarm() return botch
02-11-27 misc/swapop.c: op=3,size=4 => op=7
	 string/strlcat.c,strlcpy.c: fix uwin decl clash
02-11-26 sfio/sfvprintf.c: fix sfsprintf() '\0' termination bug
02-11-22 misc/glob.c: move static struniq() to libast extern
	 string/fmtversion.c,include/ast.h: add fmtversion
02-11-18 string/strncopy.c: add
	 misc/magic.tab: list size for magicid.h magic
02-11-14 sfio/sfvprintf.c: add %#c for C escapes
	 include/error.h: add ERROR_NOTIFY context flag for builtin commands
02-11-11 string/strtoi.h: add S2I_size for strnto*() size_t 2nd arg
	 sfio/sfstrtof.h: add S2I_size for strnto*() size_t 2nd arg
	 comp/putenv.c: add setenv() and unsetenv() wrappers for setenviron()
02-10-31 path/pathfind.c: add dir of including file to the pathinclude() list
	 misc/optesc.c: add
02-10-30 string/strtoip4.c: set next char pointer even on error
02-10-29 comp/resolvepath.c: add (size_t version of realpath())
	 misc/mime.c: fix mimehead() to ignore null content values
02-10-28 misc/glob.c: add GLOB_STARSTAR for /**/ and GLOB_NOTDIR optimization
02-10-27 string/struniq.c: add
02-10-23 features/common: fix off-by-one loop check
02-10-18 include/ast_std.h: avoid off_t,ftruncate,lseek,truncate redefinitions
02-10-17 misc/mime.c: handle type/* match, fix bogus header parse
02-10-04 sfio/sfstrtof.h: S2F_static <0:export =0:private >0:static
02-10-02 features/common: don't define _WIN32; define _WINIX => unix on windows
	 features/tty: finally stomp the bsd _POSIX_VDISABLE redefinition
	 misc/fastfind.c: add more specific findwrite() error messages
	 comp/omitted.c: fix cygwin utime() to update st_ctime
	 comp/strtol.c,strtoul.c: __CYGWIN__ static link workaround XXX
	 string/fmtls.c,fmttime.c: tmform() => tmfmt()
02-09-22 port/astconf.c: return values in fmtbuf() buffer instead of stack
	 port/mnt.c: don't set MNT_REMOTE for win32 ?:\* paths
	 sfio/sfvscanf.c: _sfdscan() is library global (not static)
02-09-21 path/pathkey.c: add tool arg for mamake compatible hash
	 features/fcntl.c: handle iffe _hdr_lcl_* => _lcl_* change
02-09-15 comp/conf.sh: fix enum vs. macro test
	 cdt: kpv sync
02-09-11 ast.h,features/common: move _WIN32 macro init to features/common
	 features/common: enable __EXTERN__ and __DEFINE__ for _WIN32&!_UWIN
	 features/float: add -lm to _ast_*_nan_init tests
	 vmalloc: kpv sync with vmresizef => vmgetmem
	 features/iconv: must have both <iconv.h> and iconv_open()!
	 features/vmalloc: alloca test must compile *and* link
	 sfio/sfvscanf.c,sfstrtof.h: add flag arg to char get, fix NaN loop
02-09-10 vmalloc/vmhdr.h: enable getpagesize() and sbrk() prototypes
	 features/fcntl.c: enable mmap64() prototype
	 include/ast_windows.h: windows.h wrapper with ast namespace workarounds
02-09-07 misc/mime.c: fix quoted value parse bug that ate the whole line
02-09-05 features/vmalloc: add free() to _std_malloc test
	 include/ast.h: NoF(x) now defines _DATA_x for !_BLD_DLL too
	 tm/tmlocale.c: { C POSIX en } == unix dadgummit
02-08-29 path/pathfind.c: initialize Dir_t.next=0
02-08-28 uwin/rint.c: update
	 features/libpath.sh: "bin" is now the default value
02-08-22 vmtrace.h: add for debugging
02-08-20 misc/magic.c: convert to use <cdt.h>
	 vmalloc/vmresizef.c: add for generic discipline resizef default
	 string/strelapsed.c: allow long time component names
02-08-19 misc/optget.c: add `.fp 5 CW' to --nroff output
	 string/(fmtfs|fmtuid|fmtgid|strgid|struid).c: convert to use <cdt.h>
	 include/dt.h,cdt/dtnew.c: add for dtopen() in specific vm region
02-08-13 comp/omitted.c: fix bzero logic for e.g. unixware.i386
	 include/ast.h: add fmtbase->fmtbasell; swap in 2003-09-01
02-08-12 regex/regnexec.c: fix REG_MINIMAL REX_DOT mb bug
02-08-08 features/iconv: <ast_common.h> instead of <sys/types.h> <ast_common.h>
02-08-07 regex/regcomp.c: recognize anchors in BRE subexpressions
02-08-06 comp/iconv.c: handle win32 cpNNNN == windows-NNNN aliases
02-08-05 cdt/*: sync with kpv src
02-08-02 features/iconv: include sys/types.h for ast_types.h
02-08-01 misc/magic.c: magic file "." names the default
	 misc/magic.c: handle addr type (from irix string)
	 features/lib: move malloc tests to features/vmalloc
	 features/vmalloc: snarf tests from features/lib
	 vmalloc/*: sync with kpv src
	 comp/libc.c: dropped -- __libc_* intercepts moved to vmalloc/malloc.c
02-07-30 features/lib: handle __libc_malloc() in _std_malloc test
	 vmalloc/malloc.c: add gnu pvalloc()
	 features/vmalloc: fix alloca check
02-07-29 features/limits.c: handle netbsd guards
02-07-27 sfio/sfpoll.c: handle rw pipes
02-07-25 features/iconv: include ast_types.h for size_t in ast_iconv.h
02-07-18 apply LARGEFILE64 header prototype clash patches
	 misc/optget.c: __EXTERN__ _opt_info_ instead of opt_info
02-07-17 ast_std.h: memzero() now defaults to memset() instead of bzero()
02-07-16 ast_std.h: add ast.env_serial
	 misc/setenviron.c: increment ast.env_serial
	 include/tm.h: tmset() now calls tminit() directly
	 tm/tminit.c: check ast.env_serial for env change
	 tm/tmfix.c: speed up for large values of tm_mday
02-07-15 comp/fnmatch.c: fix memory leak caused by missing regfree()
	 comp/strstr.c: fix broken interpretation and implementation
	 comp/iconv.c: intercept (but no-op) null to and from buffer pointers
02-06-27 ast_std.h: map _sysconf => _ast_sysconf for sun
02-06-26 cdt,sfio,vmalloc: kpv sync -- is this ever easy?
02-06-24 sfio: kpv sync, vfwscanf(),fputw() fix (wcslen(x)*sizeof(wchar_t)!!)
	 misc/fts.c: fix symlink chdir() optimzation bug
02-06-11 sfio/sfwrite.c: string to file fix
	 Makefile: __OBSOLETE__==20020101
02-06-01 regex/regcomp.c: REG_DELIMITED now consumes the delimiter
02-05-31 regex/reglib.h,regcomp.c,regnexec.c: null subexpression fixes
02-05-24 misc/fts.c: disable dir link counts in 3d
	 misc/magic.c: fix "*(mkfile)" sh pattern to "*@(mkfile)"
02-05-20 regex.h,regex/regsubcomp.c,regex/regsubexec.c: add
	 regex/regsub.c: deprecate
02-05-16 tm/tmfix.c: fix '60+n min/sec ago' bug for n min/sec after the hour
02-05-14 regex/regsub.c: fix (^|x) null match early termination bug
02-05-13 dir/dirlib.h: drop errant extern==__EXPORT__
	 features/uwin: add uwin lib tests
	 uwin/*.c: check features/uwin for stubs
	 features/float: add nan representation generation
	 sfio/sftable.h: used _ast_*_nan_init for huge values
02-05-09 misc/fts.c: fix virtual top to force ``child'' stat()
	 features/common: define va_copy() only if not in <stdarg.h>
02-05-01 string/strtoip4.c: cisco inverted quad mask must have 4 parts
02-04-30 misc/magic.tab: fix pzip version check
02-04-19 string/strtoip4.c: handle cisco inverted quad mask n.n.n.n/i.i.i.i
02-04-18 misc/fts.c: add chdir() verification stat() optimizations
	 path/pathkey.c: check PROBE_ATTRIBUTES for list of vars
02-04-12 port/astlicense.c: type=open tweak, fix author list spacing
02-04-11 regex/regcomp.c: check for pattern number overflow
02-04-05 tm/tmfmt.c: add %u
02-04-04 sfkeyprintf.c: fix %c numeric value
	 path/pathpath.c: check plain path first -- duh
02-04-03 misc/fts.c: fix (FTS_PHYSICAL|FTS_NOSTAT) stat optimizations
	 ftwalk.c: only clear FTW_DELAY if FTW_CHILDREN
	 ftwalk.h: add FTW_NSOK for FTW_DELAY
02-03-29 ast.h: drop strerror() prototype -- already in <ast_std.h>
	 features/stdio: check for _SFIO_H redundant _Sfstd* declarations
02-03-26 misc/glob.c: fix GLOB_LIST gl_flags values
02-03-24 port/mnt.c: update bsd fstype name and mount option logic
02-03-23 Makefile: add ast_wchar.h to the .check.hdr list (for mamake)
02-03-17 features/stdio: hack around g++ 3.* clashes
	 Makefile: add ast_nl_types.h to the .check.hdr list (for mamake)
	 string/strtoip4.c: fix validity check bug that only checked last part
02-03-14 misc/optget.c: fix --keys to not expand inline \f...\f
02-03-12 port/astlicense.c: add type=free
	 path/pathaccess.c: sibling ".." search ignores relative dirs
	 sfio/sfvscanf.c: sfstrtof get() must return 0 on eof
02-03-11 path/pathexists.c: check path by pairs checking {ENOTDIR,ENOENT}
02-02-14 features/float: copy local min/max macros to avoid printf roundoff
	 features/wchar: include <ast_common.h>, not <ast_std.h>
	 misc/magic.c: match[]=>matches[] to fix K&R match() macro conflict
	 include/vmalloc.h: include <stdlib.h> for !_PACKAGE_ast
	 uwin/mini.sym: add sprintf (now required by features/common)
	 regex/regnexec.c: truncate wide chars for <ctype.h> functions
	 Makefile: fix MAM ast_common.h sequencing bug by making it first
	 cdt/dthash.c: fix DT_DELETE memory leak (DT_DETACH typo)
	 cdt/dthash.c: fix DT_DELETE double free (dt->data->here typo)
	 regex/regcomp.c: fix recomb() to reject RE with backref
	 features/iffeio: explicitly generate stdio.lcl
	 stdio: add {fcloseall,f(get|put)s_unlocked,fmemopen,getdelim,getline}
	 tmmake,tmtime: allow negative time_t if native localtime/gmtime do
	 tmdate: allow years before 1969
	 fmtfmt: add
	 include/ast.h: add { PATH_TOUCH_CREATE PATH_TOUCH_VERBATIM }
	 Makefile: add std/*.h for std header iffe overrides
	 comp/iconv.c: fix non-C win32 sfreserve() loop
02-02-11 features/common: separate long long / long double tests
	 features/common: verify printf handles long long / long double
02-02-02 include/ast_std.h,sfio/sfhdr.h: drop _hdr_locale tests -- always on now
	 include/ast_std.h: trust _UWIN <unistd.h>
02-01-31 port/mnt.c: add aix options field
02-01-30 comp/strstr.c: add for ancient s5
	 stdio/_flsbuf.c: only on systems that transfer to native (e.g., uwin)
	 string/strtoi.h: cat min/max error return values
02-01-28 features/tty: add cf[gs]et[io]speed macros for <termio.h>
	 comp/rename.c: punt to (ancient) /usr/lib/mv_dir on EISDIR
02-01-24 sigcrit.c: fix SIGCLD!=SIGCHLD interrupt loop
	 sfvprintf.c: convert fast io macros to functions for uts.390 cc
	 string/strtoi.h: drop #pragma prototyped for standalone sfio
	 sfdcsubstr.c: rename from sfdcsubstream.c for 14 char fs
02-01-22 execlp,execvp,execvpe,spawnlp,spawnvp,spawnvpe: fix __EXPORT__
	 spawnlp,spawnve,spawnvp,spawnvpe: handle ms mode arg -- barf
	 sftable.c: ifdef hacks for _WIN32&_ALPHA_ fp exception
	 _stdfun.c: add _UWIN&_ALPHA_ iob map
02-01-18 sfio/sfstrtof.h: drop #pragma prototyped for standalone sfio
02-01-17 features/hdr: don't include <stddef.h> after it doesn't check out!
02-01-16 misc/magic.c: add version type for YYYYMMDD or [a.][b.]c.d
	 misc/magic.c: recode mime %s parse -- sensible and no buffer overflow
02-01-15 misc/magic.tab,magicid.h: add generic binary magic number and header
02-01-12 tm/tmlocale.c: override win32 default date for {C,POSIX,en} locales
	 comp/omitted.c: fix cygwin workaround logic bugs
02-01-09 stdio/fseeko.c,ftello.c: add from UNIX98
02-01-08 comp/conf.sh: use $cc instead of cc
02-01-07 string/strlcat.c,string/strlcpy.c: add bsd api
01-12-18 comp/conf.tab: fix LFS_CFLAGS default for sun _CS_LFS_CFLAGS botch
	 features/common: add hdr stdarg test
	 tm/tmdate.c: handle YYYY/MM/DD
01-12-10 misc/magic.tab: add generic 0x00010203 binary magic
01-12-03 path/pathprobe.c: return HOME relative path if readonly/non-suid fs
01-11-30 misc/optget.c: add simple cache for repeat offenders (like ksh read)
	 sfio/sfhdr.h: preserve errno across SFMMSEQON-SFMMSEQOFF
01-11-29 magic.tab: fix GIF version number listing
01-11-28 string/fmtbase.c: p!=0 => base always included in output
01-11-26 misc/fts.c: empty path is an error
01-11-14 misc/optget.c: fix --?+SECTION queries to include paragraphs
01-11-20 regex/regnexec.c: fix REG_MINIMAL character class match bug
01-11-19 features/lib: retain _lib_confstr for all solaris releases
01-11-16 comp/setlocale.c: fix !_lib_setlocale typo
01-10-31 regex/ucs_names.h: add string catenation to keep line length low
	 misc/fastfind.c: handle gnu slocate db read
	 misc/optget.c: add --?+SECTION queries
	 comp/fnmatch.h: add FNM_NOSYS
01-10-30 tm/tmdate.c: fix cron specs when both wday and mday are specified
01-10-20 misc/glob.c: fix bug that called \ trim() twice on same path
	 misc/glob.c: fix \ trim() bug that restored / to wrong position
	 string/fmtre.c: fix { ^ . $ } translations
	 misc/optget.c: use original string if translation fails -- duh
	 sfio/sfhdr.h: assume <errno.h> assigns proper atttibutes to errno
	 comp/regcmp.c: __ia64 workaround fixed by proper CC.DLL probe
	 comp/getdate.c: __ia64 workaround fixed by proper CC.DLL probe
	 features/lib: add lib getdate
01-10-18 features/lib: check for strtod static link collision
	 features/float: add another signed cast for old bsd cc
	 features/wchar: add <stdlib.h> <stdio.h> before <wchar.h> for old bsd
01-10-17 sfio/sfcvt.c: limit max precision to { FLT_DIG DBL_DIG LDBL_DIG }
	 sfio/sfcvt.c: fix %[aA] format to always have leading 0[xX]1.
	 sfio/sfvprintf.c: handle %C %lc %S %ls for wchar_t args
	 sfio/sfvscanf.c: handle %C %lc %S %ls for wchar_t args
	 string/fmtmode.c: fix bug that omitted trailing '\0'
01-10-12 misc/optget.c: . => \&. for --??nroff
	 comp/wc.c: fix mbstate_t initialization typo
	 features/float: fix max integer / float loop termiation
	 features/float: fix LDBL_UINTMAX_MAX typo that did DBL_UINTMAX_MAX
01-10-11 include/sfio.h: fix _Sfstd* import/export
	 features/common: fix _UWIN __DYNAMIC__() definition
01-10-06 features/fcntl.c: { O_BINARY O_TEXT } default to 0
	 features/omitted: add for comp/omitted.c
	 sfio/sfopen.c: O_BINARY default for _WIN32&&!_UWIN
01-10-05 misc/glob.c: fix `\(x/*' GLOB_NOMATCH bug that returned `(x'
	 misc/optget.c: fix localization lookup that didn't drop doubled : ? ]
01-10-04 comp/setlocale.c: handle sizeof(wchar_t)!=4 in debug locale
	 comp/conf.sh: handle sytems where _SC_* is both an enum and a macro
01-09-25 astconf: add LIBPREFIX
01-09-20 features/common: add __DYNAMIC__() for dll externs
01-09-19 cdt: kpv update
	 mb*() macros: update for ksh conversion, extend debug locale
01-09-16 tm/tmlocale.c: add compiled in defaults for C locale
	 misc/glob.c: add gl_nextdir callback for GLOB_COMPLETE
01-08-14 clarify _WIN32 vs. _UWIN vs. __CYGWIN__
	 tminit: fix standard & daylight initialization
01-09-11 pathnative.c: add for native fs representation
	 regex.h: fix regerror_t prototype
01-09-04 regex/regnexec.c: fix REG_ICASE for multi-char collating elements
	 tm/tmlocale.c: fix old ascii LC_TIME load
	 locale*: add new LC_* categories
	 comp/omitted.c: add CYGWIN workarounds
	 features/lib: add CYGWIN workarounds
01-08-11 features/common: some compilers have long long but no LL constants!
	 features/lib: add mmap64 implementation test (for linux.s390)
	 regex/regcomp.c: fix \ in [...] parse
	 setlocale: retain user locale spelling in setlocale() return value
	 features/limits.c: don't include ./limits.h -- duh
	 fmtesc: don't escape multibyte chars
	 tm/tmlocale.c: fix native C locale default
01-08-08 features/float: some compilers (msdev) forget long long vs. double
01-07-31 misc/optget.c: handle suboptions
01-07-27 cdt.h: add DTDISC()
01-07-17 iffeio.h: move to include for stdio bootstrap iffe workarounds
01-06-25 regex: perl extensions added and tested
01-06-21 misc/error: add ERROR_OPTIONS=prefix=string for message processing
01-06-15 string/chresc: only 2 hex digits max for \xxx
	 regex/regsub: handle REG_SHELL ~(nnn) rhs backrefs
01-06-11 regex: handle embedded \0 in pattern and subject string
	 regex: add (?nnn) for backrefs > 9
	 comp/fnmatch: add FNM_LEADING_DIR for gnu compatibility
	 features/float: _ast_flt_unsigned_max_t for bsd.i386 omission
01-06-06 misc/optget.c: add o option for old ps,ar,tar with optional leading -
	 regex/regcomp.c: REG_LENIENT|REG_DELIMITED \<newline> => <newline>
	 regex/regcomp.c: REG_LENIENT \000 => NUL
01-06-04 features/dirent: replace Makefile hack with iffe semi-hack
	 regex/regnexec.c: negation must also check REG_SHELL_DOT
01-06-03 sprintf.c: change buf size from SF_BUFSIZE to INT_MAX
01-05-31 glob: fix gl_fignore to ignore leading . by default
	 features/lib: add botch_d_ino_dirent64 for linux botch
01-05-25 port/lc.tab: add a few missing language_territory's
01-05-23 string/chresc: \C[.collation-element.]
	 fmtmatch,fmtre: update for <regex.h> syntax extensions
01-05-21 regex: add perl extensions, unicode names for collation elements
01-05-11 string/chresc: \e == \E == escape, \cX == control X, \x{..} == \x..
01-05-09 path/pathtemp.c: pathtemp(0,0,0,"/private",0) for mode S_IRUSR|S_IWUSR
	 port/touch.c: handle utime(2) EPERM to fix bug that truncated
	 regex: change REG_MINIMAL to avoid negation -- much faster now
01-05-08 *.h: add some off_t macro guards for suse linux
01-05-03 regcomp.c: optimize ((x)!)* to ((x)!)
	 wchar: add <wchar.h> and stdio wchar routines
01-05-02 feaures/wchar: add <wchar.h> intercept, add stdio wchar functions
01-05-01 string/strtoi.h: signed strtoi accepts qualified unsigned constants
01-04-30 comp/setlocale.c: fix code that relied on 2 simultaneous getenv()'s
	 tm/tmlocale.c: check for UTF-8 encoded LC_TIME files
	 misc/magic.tab: add utf-8 and utf-16 U+FEFF magic
01-04-26 features/common: some cc's have _ast_int8_t but not LL constants
01-04-24 features/lib: add _std_strtod for mac os X
01-04-23 ccode: add CC_sub for ms embedded EOF char on ebcdic -- no joke
01-04-20 iconv: handle ebcdic<=>utf
	 mc.h,mc.c: add mcindex()
	 ast_std.h: add AST_MESSAGE_SET
01-04-18 features/libpath.sh: fix mvs probe
	 *: sundry mvs fixes
	 glob: fix GLOB_NOCHECK to avoid stat() and properly trim patterns
01-04-01 strtod,strtold: add
	 strtol,strtoul,strtoll,strtoull,strton,strtonl: handle locale & ERANGE
	 sfvprintf,sfvscanf: handle locale decimal_point,thousands_sep
	 sfvprintf,sfvscanf: handle %a,%A
	 setlocale: add LC_NUMERIC decimal_point,thousands_sep init
	 ast_std.h: __OPTIMIZE_SIZE__==1 to disable non-std __GNUC__ inlines
	 pathexists: path cache to cut down pathpath() access(2) calls
	 features/stdio: __FILE_TAG == _sfio_s for solaris
01-03-23 iconv: fix iconv_move buffer boundary bug that stopped at 1 block
01-03-19 glob: add GLOB_AUGMENTED
	 regex: REG_SHELL syntax error implies REG_LITERAL match
	 strto[ln][ll]: add overflow checks
01-03-17 locale: reimplemented to provide canonical locale namespace
	 locale: add LC_ALL=local for local system user default
	 tm.h: TM_*_3 => TM_*_ABBREV
	 tmfmt: handle standard E and O format modifiers
	 tmlocale: consult nl_langinfo() if defined
	 fmtquote("\"",1) => shell quote
01-03-08 regex: handle multibyte chars and collation classes
	 strmatch,strgrpmatch: now a wrapper on regex
	 ast_std.h: add mb*() multibyte and collation support
	 sfvscanf: handle locale decimal and thousand
	 proc*,system: handle ignored SIGCHLD
	 sfkeyprintf: handle %*C
01-03-06 locale: add locale data cache for efficient multiple locale switching
	 optget: fix LC_MESSAGES!=C --man bug
01-03-01 Makefile: HEADEROPT is not optional for win32.*
	 comp/syslog.h: comply with the de factos
	 optget(): fix \f...\f stack bug that referenced data after pop
01-02-27 *locale*: a batch of fixes for native LC_MESSAGE&LC_TIME hooks
01-02-22 pathprobe: reprobe test now checks probe.ini too
	 sfio_s.h: advertize public Sfio_t members with _ prefix
	 sfio.h,features/stdio: add <sfio_s.h> reference
	 sfhdr.h: map <sfio_s.h> _foo to foo
	 sfio.h: SF_APPEND=>SF_APPENDWR, SF_CLOSE=>SF_CLOSING
01-02-14 comp/conf.sh: probe <unistd.h> for _(CS|PC|SC)_* getconf symbols
	 stdio/*: update for uwin stdio.dll binary compatibility
	 sfread: finally fixed premature pipe read EOF bug
	 fmtscale: format tenths for number > 0 && number < 10
01-02-09 _sfmode(),_sftype(),_Sfextern: UWIN binary stdio compatibility exports
01-02-08 sfgetm,sfputm,_sfputm: fix max clash with k&r max() macro
	 setlocale: undef valid for sun4 k&r valid() macro
01-02-07 catopen.c: don't do native catopen for the debug locale
01-02-06 sfraise.c: add SF_FINAL check to avoid (posibly) freed disciplines
01-01-01 features/common: fix uwin __DEFINE__
	 sftable: initialize decimal and thousand
	 magic.tab: add corel wordperfect document
	 syslog: add LOG_LEVEL, add '\n' only if needed
	 include/tm.h: #undef daylight for _WIN32
	 sfio.h: add _SF_APPEND and _SF_CLOSE for native namespace incursion
	 ast_std.h: add AST_LC_multibyte for MB_CUR_MAX>1
	 setlocale: set AST_LC_multibyte
	 strmatch: check AST_LC_multibyte
	 features/limits.c: add _BITS_POSIX1_LIM_H guard for linux
	 features/libpath.sh: fix for aix LIBPATH
	 procopen,procclose: block SIGCHLD if PROC_FOREGROUND (e.g., system(3))
	 optget.c: add enumerated option argument values
	 optget.c: add <!--INTERNAL--> for private --html
	 optget.c: fix memory leak that hit shell builtins hard
	 sfio: drop sfread small chunk logic
00-12-25 mnt.c: handle " and ' quoting for fstab
	 sftmp.c: let pathtemp() open the fd O_EXCL
00-12-15 conf.sh: add -v for verbose trace
	 features/(limits|unistd).c: no FEATURE/types because of _POSIX_SOURCE
	 features/time: add default for CLOCKS_PER_SEC
	 features/lib: std_malloc now handles NeXT
00-12-13 strton: recognize qualifier only if preceded by a digit
	 features/lib: change return in vfork() test to exit() for linux sparc
	 fmtquote: fix $'...' quote logic
00-12-11 tmdate: fix cron format bug that mishandled months
00-12-01 optget: handle $Id: ... $ in --?-version
	 features/fcntl.c: fix _STDPP_ mmap munmap
00-11-27 magic: drop dup sfclose() in load()
	 optget: handle error_info.id==0
00-11-22 features/stdio: add _FILEDEFED for sol9.sun4
	 strton,stronll: handle [u|U][l|L][ll|LL] qualifiers
00-10-31 tmdate: add TM_DATESTYLE and mmddHHMM[cc]yy
	 astlicense.c: #include <hashkey.h> MAM workaround
	 astlicense.c: check for non-empty CONTRIBUTORS
00-10-26 features/stdio: add _FILE and __FILE for gnu
	 misc/stk.c: fix stack pointer check off-by-one (dgk does it too!)
00-10-23 syslog.h: sync with bsd values
00-10-18 _STUB_* now functions instead of common symbols
	 all extern data declared with definition to eliminate common symbols
	 fastfind: add mac/bsd /var/db/locate.database
00-10-17 features/lib: add apple osX (darwin.ppc) workarounds
00-10-12 add: fmtbuf(), fmtclock(), fmtip4(), strtoip4()
	 fmt*() now use fmtbuf() for tmp fmt buf allocation
00-10-05 regex: add REG_DISCIPLINE and regdisc_t for alloc/error disc
00-09-29 features/lib: pipe_rw==0 for sgi: boot rw == bin incompatibility
00-09-21 astlicense: handle \' and \" in license values
00-09-20 sfwrite: fix write() error in sfprintf() loop
00-08-11 hdr,vmhdr.h: check/hide { getpagesize sbrk } prototypes
	 astlicense: add noncommercial
00-07-31 fflush: don't seek on pipes
	 sfresize: add
	 setlocale: fix bad newof() call
00-06-01 strmatch: initialize match.current.beg[0] to avoid dump at line 670
	 sfio/stdio: a few more errno tweaks
	 astquery: sfstdin/sfstderr by default
00-05-26 sfmode: errno=EBADF for invalid stream use
00-05-22 rewind: fix for xopen test
00-05-18 mcfind: returns absolute path
00-05-16 optget: --keys must catch \f...\f too
	 translate,mc: errno cleanup
00-05-09 magic: add netbsd binary magic
	 fts: PATH_RESOLVE!=logical => FTS_SEEDOTDIR
	 ftwflags: call fts_flags()
	 astconf: astconf(0,0,0) re-syncs with _AST_FEATURES
00-05-08 optget: --usage & --keys for last -catalog group only
00-05-02 iconv.c: add; use codes[] in ccmapid() and ccmapname(); "" for native
00-05-01 pathtmp: copy env values (libshell or putenv may change)
00-04-01 optget: drop bar from [-foo?bar] for --??keys
	 sfvscanf: add %X -- duh
	 features/common: fix va_listval() for power pc
	 findopen: fix FIND_GENERATE codes file search
	 magic: add ERROR_translate() and msgcat.key
	 tmlocale: add for LC_TIME locale info
	 tmlex: check tm_info.format and tm_data.format
	 tmfix: fix for tm_wday special case (via nl_langinfo on LC_TIME fields)
	 strftime: fix for nl_langinfo special case
	 ast_std.h: provide LC_* defauls if not defined
	 sfnew: check ${_AST_sfio_bufsize} -- don't tell kpv
	 catopen,nl_types.h: add intercept to mc* routines
	 magic.tab: add ast message catalog
	 strerror: add _ast_strerror intercept with ERROR_translate("errno")
	 fmtquote: escapes >0177 only if (flags&2)
00-03-17 feof: stdio macro functions only for _UWIN
	 optget: proper ERROR_translate() calls
	 astgetconf: add for thread safe error message control
	 astlicense: fix type=special but with non-null notice
	 errorx: add for ERROR_translate() support
	 ERROR_translate: add locale id args for alternate dictionary
	 option.h: move _OPT_PRIVATE_ to pointer to avoid dll size mismatch
	 ftwalk: fix FTW_CHILDREN bug that hit top level non-dirs twice
	 translate.c: default error_info.translate
	 astconf: fix dup loop thrash that never returns, add _AST_VERSION
00-03-10 ast_std.h: do _LARGEFILE_SOURCE initialization before std headers
	 fmtquote: handle $'...' quotes
00-03-07 optget: fix numeric option support test
	 sfkeyprintf: add %q for '...' quoting with ansi escapes
00-03-06 features/stdio: fix _sfflsbuf prototype (dingold@gte.net)
00-02-14 pathtmp: fix pid cache bug that sometimes repeated after ~10 attempts
	 optget: "..." attribute quote
	 pathfind: eliminate *: prefix in lib, not type
	 proc: PROC_FOREGROUND for system(3) semantics (wait status return)
	 pathtmp: fix mktemp() logic
	 fts: fix FTS_NOSEEDOTDIR bug that botched ./* in top list
	 include/ast/prototyped.h includes include/prototyped.h
	 pathpath: fix strdup(0) bug
	 optget: --html <foo@bar> => ...mailto:foo@bar...
	 sscanf: fix sfsscanf => sfvsscanf typo
	 magic.tab: strengthen tar recognition
00-02-08 conf.sh: fix ifdef for systems that think sysconf(FOO) is const
00-02-04 glob: fix globlist_t.gl_flags
00-02-02 vm*: add NoF() for data only files
00-01-27 fts: fix top level .==.. statp bug (thanks to dr. ek)
00-01-25 conf.tab: fix LFS*_*LAGS typo
00-01-24 astlicense: handle type=verbose, license.notice, author=*
00-01-11 pathprobe: generate info for first probe script on PATH - duh
	 ast.h: add NoF(x) for files that define no functions
	 tmpfile: fix implementation
	 global change for string ERROR_translate() dictionary names
	 optget: fix new way but no long names off by one
	 optget: handle [--dictionary?name]
99-11-19 comp/conf.sh: `expr length XXX` is not universal
	 drop sfstdio; stdio via functions everywhere
	 drop Makefile conditionals (and follow our own advice for once)
	 sfio: new stream after atexit() bug fix
	 tm: Tm_zone_t.daylight=0 for standard time within zone
	 stdio: fopen => _ast_fopen: only way short of binary compatibility
	 Makefile: atmain.C falls back to atmain.c
	 optget: add --keys, s<section> option
	 stdio: _UWIN check for foreign stdio
99-11-11 astlicense: add
99-10-31 glob: fix regexec pattern; add PATH_ATTRIBUTES case check
	 pathpath: path==0 means malloc space
99-10-22 tmfmt: %C=2-digit-century, %k=date(1), %y=2-digit-year-in-century
99-10-18 fastfind: expanded default db lookup
99-08-11 magic: fix off by one registry malloc
	 features/fs: add __RENAME checks for stat familiy (netbsd)
	 features/fs: major()/minor() fixes for s5
	 features/libpath.sh: netbsd fix -- ld.so not in std places
	 misc/fastfind: fix codes path generation bug
	 optget: beef up --?* description, fix <TR>...</TR> nesting
	 pathprobe: check for override (writable key file) first
	 features/time: int tmtimeofday(struct timeval*);
	 optget: fix opt_info.num, even if opt_info.arg!=0
	 fts: FTS_PHYSICAL => FTS_SEEDOTDIR, add FTS_CHOP
	 fastfind: init dir tab with logical and physical name
	 glob: add gnu GLOB_ALTDIRFUNC
99-07-17 sfio: kpv update and sfhdr.h sync!
99-06-24 stdio: fix fflush() to ignore sfseek(0) return value
99-06-23 magic: '\r' is text not control to placate m$
99-06-08 stdio: fix fseek,ftell semantics
	 uwin stdio: fflush() => _doflsh() to avoid __cplusplus clash
	 getopt: call liberror() to avoid error() conflict
	 tmfmt,tmscan: %N zone type (nation code), %z zone minutes west offset
	 tmfmt: - no pad _ space pad 0 leading 0 pad
99-05-28 magic: fix 'x' == '*' for any number, magic.tab tweaks
	 features/lib: verify that stat64 really works
99-05-21 tm*: add TM_WINDOW==69 for consistent century windowing guard year
99-05-18 tmtime: add century leap year calc anticipating unsigned time_t
99-05-17 sfkeyprintf: handle %o and %x!!
99-05-09 pathprobe: $HOME/.probe if not suid and st_uid!=geteuid()
99-04-28 magic,magic.tab: add registry()
99-04-24 regcomp: fix ksh pattern +! parse
	 regfatalpat: add
	 optget: make : ? ] double escape consistent in all contexts
99-04-01 features: drop iffeio.h and stdio.h when only printf() used
	 regex: fix stats() .l and .k count
	 fmtquote: added; most general fmtesc() form
99-03-22 fmtesc.c,ast.h: add fmtnesq()
	 optget: --?x works for -x option flag
99-03-17 features/limits.c: workaround solaris __EXTENSIONS__ _timespec bug
	 workaround limits.h circular prereq with ignore stdio.h
	 sfvprintf: %04e left-pad zero fixed
99-03-03 fts: uncle already: add FTS_SEEDOTDIR to retain leading ./
	 regex: REG_MULTIPLE, BM for fixed string alternation
	 optget: embedded `-' optional in long options, prefix={0,1,2}
99-02-14 fastfind: fix dir format bug that emitted wrong paths
	 astconf: fix redef off by one bug
99-02-11 pathcanon(): don't cache astconf("PATH_LEADING_SLASHES", NiL, NiL)
99-01-23 optget: move <old_opt.h> back into <option.h>, no open-close
	 optget: add "[index:long-name:description]" for --long-name
	 comp/gross: add weak __libc_attr for irix < 6.5 compatibility
	 features/limits.c: tweak the guards again
99-01-11 fastfind: handle old format count byte order
	 magic.tab: fix elf to use real phdr offset
	 magic.c,magic.tab: fix | to act like switch/case
	 comp/fross.c,features/hack: for gross hacks
	 features/stdio: avoid sfio namespace pollution
98-12-25 tmdate: yyyy.mm.dd
	 pathprobe: fix procrun() cmd path bug
	 fmtesq: add
	 features/common: win32.alpha va_list
	 magic: add pc alpha object
98-11-11 strmatch: add STR_ICASE
	 pathprobe: punt to $HOME/.probe/<key+HOSTTYPE> if not S_ISUID
	 tmzone,tmdate: handle +-minutes, nn/MMM/yyyy
	 stropt: fix nested quote pop
	 tmfmt: add %K => %Y-%m-%d/%H:%M:%S
	 sfio/stdio: fix fseek() SF_PUBLIC omissions
	 fmtesc: catch '\\' (duh)
	 vmalloc: vmbest round bug fix
98-11-01 fts.c: no pathcanon() if (fts_flags & FTS_PHYSICAL)
98-10-01 features/stdio prototype fixes
	 optget: strton() instead of strtol() for #
98-09-22 regcomp: add REG_DELIMITED and REG_ESCAPE delimited re support
98-09-15 fix _LARGEFILE64_SOURCE stuff
	 ast_std.h: provide mmap() prototype
98-08-11 fix sfpopen() to ignore SIGPIPE by ignoresig() for sfio but not stdio
	 fix procopen() to ignore SIGPIPE by ignoresig() for PROC_IGNORE
	 sfio sfpopen/popen update
	 magic.src: fix ustar entry
98-07-17 fix ftwalk() short by one malloc()
	 add fts_notify()
98-06-25 sfdcmore,sfdcprefix: add
98-06-19 tokscan: add %f %g
98-06-01 disc/sf*.c: memset(0) after disc malloc()
98-05-11 strelapsed: y==Y
	 fts: pathcanon() top list 
98-04-01 error: error_info.time for all msgs, just after cmd id
	 error: no sfsync(sfstdin)
	 sfio: sfpool, Sffmt_t update
	 magic.tab: sgi core dumps -- why aren't these elf?
	 stropt: (v+n) for unknown option is option value if n!=0
	 procopen: fix setsid() for spawnveg() only
98-03-19 malloc: add realloc foreign region check
	 sfdisc.h: rename to match kpv disciplines
	 fastfind: fix strcasecmp/strcmp directory prefix mixup
98-03-17 features/fcntl.c,pathtmp,sftmp: add O_TEMPORARY
98-03-01 pathcanon: fix PATH_LEADING_SLASHES to stat() both slashes
	 pathcanon: add PATH_VERIFIED
	 tmdate: add skip[] to expand separator char set
	 fastfind: FIND_OLD for old 7 bit db, FIND_TYPE for new 8 bit typed db
	 fastfind: default generates gnu LOCATE02 8 bit db
	 magic: handle %s in mime description
	 cdt: kpv update
	 sfio: kpv update
	 stdio: fpos64_t fseek64(), ftell64(), fgetpos64(), fsetpos64()
	 stdio: fseek() => sfseek(SF_PUBLIC) to avoid locking
	 fts: initialize parent stat[bp] from top level *after* statf done
	 astmath: add -lm requirement test
	 *: Astlong_t => _ast_*_t
	 regex: simplify regcollate() (from doug)
	 tmtime: preserve Tm_t*tm when calling tminit()
	 astconf: add readonly PATH_ATTRIBUTES=[cirw]
98-02-14 fastfind: add FIND_ICASE to ignore case
	 tmdate,tmgoff: handle (+|-)hh[[:]mm[[:]ss]] absolute timezone
	 tmdate: `<n> <part>' now assumes `next <n> <part>' instead of `this'
	 tmfix: fix leap year bug that forgot to add 1900
	 proc: add PROC_ZOMBIE
98-02-06 strmatch() char class range bug fix
	 regex char class range bug fix
98-01-23 _WIN32: changed the #if logic again to accomodate _GNUC_
	 mnt: grab the mount options too
	 ast_std.h: hide getopt,getsubopt from stdlib.h
	 features/limits.c: add gnu guard macros to avoid limits.h recursion
	 features/mode.c: include "limits.h" instead of "FEATURE/limits.lcl"
98-01-11 sfio.h: use Astlong_t, move Sfio_t Sfdisc_t typedef to top for stdio.h
	 sfhdr.h: #undef SETLOCAL for hpux
	 sfvprintf,sfvscanf: %I*x for sizeof(int_arg)
	 handle ftruncate64 and truncate64
	 dtopen.c: __hppa dll needs Dtset Dtlist Dttree refs here
97-12-18 fmtnum: add
97-12-11 magic: handle sgi 64 bit core dumps
97-12-07 pathtmp: add override for TMPPATH,TMPDIR and cycling
97-11-11 tm: handle 0 return from gmtime(),localtime() (dos negative time_t)
	 features/stdio: fix fflush() macro to do physical sync
97-10-31 astconf PATH_RESOLVE is logical if 3d&&!std, metaphysical otherwise
	 magic: fix #! mime bug
	 tm: tmtime() now calls tmfix() and adjusts tm_isdst too=>mtime() works
97-10-11 dllfind,dlfcn: move to separate -ldll so -last can link static, duh
	 Makefile,state.c: move forced header generation state.c => Makefile
	 sfio: update including SF_WHOLE
97-10-01 sfdostext: add \r\n => \n sfio discipline
	 stropt: NiL table => p=name for all name=value
97-08-11 pathtmp: check pid to note forks
	 procopen: FD_CLOEXEC rfd && wfd
	 fts: fts_close() after fts_children() with no fts_read() now works
97-07-17 error: sfsync(sfstdin,sfstdout,sfstderr) instead of sfsync(NiL)
	 _sfcvinit: add sfio internal interface to base conversion tables
	 strton: use _Sfcv* base conversion tables instead of sfsscanf()
	 sfvscanf: use _Sfcv* base conversion tables
	 mime: x- permutations now matched if exact fails
	 mime: original- stripped from content-* headers
	 tmdate: add yyyy-jjj, yyyy-mm-dd
	 dllfind: add
	 ccmapid: fix buf copy loop limit
	 ccmapname,ccmapcpy: add
	 sfstrtmp: add
97-05-09 streval: fix up casts for pseudo-ansi cc
	 features/types: use _ast_int_8 vars to verify support
	 string/modedata: check for mvs.390 S_IFMT
	 include/ast(_std).h: add #define __FILE_typedef
	 magic: add ccode text check
	 include/ftwalk.h: FTW_PATH=>FTS_NOCHDIR to avoid FTS_AGAIN (duh)
	 fts: clear status for FTS_AGAIN (fixes rm -r bug)
	 mnt: add mvs openedition w_getmntent()
	 sfhdr: _hdr_float && <float.h> for correct MAXDOUBLE
	 vmalloc/vmbest: if _std_malloc then use malloc()/free() not sbrk()
	 remove: check _std_remove
	 procopen: handle pio[{0,1}]=={0,1}
	 setenviron,features/uinstd: test for mvs.390 dll environ hacks
96-12-25 <sfio_p.h> -> <ast_common.h>
	 __EXTERN__(type,object)
	 __DEFINE__(type,object,value)
	 magic: check strings in !CC_NATIVE code set too
	 system: cmd==0 means check for shell access (xopen)
	 sfhdr.h: fix sfrsrv prototype
	 add __libc_malloc etc for gnu/linux
	 astconf(NiL,path,name) == astconf(name,path,NiL) + no liberror
	 fts_open: if toplist() stat fails return 0
	 ftwalk: handle fts_open()==0 via one phony userf() call
	 sfmode: S_ISFIFO default is SF_SHARE=0
	 features/lib: _WIN32 _lib_vfork=1 by default
	 unsigned<0 comparison and other fixes via sgi.mips4 cc
	 stk.c: use <align.h> ALIGN_BOUND for stkalloc()
	 features/lib,vfork: uwin fix
	 ast_std.h: fix strto[u]ll prototypes with features/types _ast_int_8
	 getsubopt: add for xopen 4.2 compatibility
	 drop function __IMPORT__
	 magic: more magic
	 change #define FILE from Sfio_t to struct _sfio_s
	 state.c: add generated includes that may be hit by std for MAM
	 bytesex: forgot about sizeof(long)=>7; could we fix the name too?
	 vmalloc.h: fix vmnewof() definition
	 sfio.h,stdio.h,ast_common.h: pollution cleanup
	 magic.c: add | op for switch
	 Makefile: stdio.h was on both HEADERSRC and HEADERGEN -- don't do that
	 drop pp:notice to get <sfio.h> ... <ast.h> to work 
	 regex: add [[:<:]]==\< and [[:>:]]==\> for bsd compat
	 mime.c: ignore X-* headers while scanning for Content-*
	 magic.c: check for negative indirect offsets
	 magic.tab: fix dos entry that generated negative indirect offsets
	 vmalloc.h: add vmstrdup() prototype
	 hash.h: add hashgetbucket() macro
	 magic.c: MAGIFILE is now a : file list
	 mnt.c: another 4.4 bsd fix -- users must include <sys/crap.h>
	 common: fix _WIN32 chicken&egg with va_copy
	 sfio: forgot to set f->val along with _Sfi in sfexcept() 
	 Makefile: add mini target for uwin libmini.a
	 sfcvt.c: workaround for flaky long double optimizers
	 features/common: fix to work with va_list==void*
	 regexec.c: fix REG_STARTEND subexpression offsets
	 strmatch.c: don't forget <wctype.h>
	 regrexec.c: fix REG_INVERT end boundary bug that missed last record
	 astconf.c: notify(0,0,"a=b") called for each setenviron("a=b")
	 pathcanon.c: check astconf(PATH_LEADING_SLASHES) to preserve //*
96-11-28 _LARGEFILE64_SOURCE by default if possible: NOTE: assumes xopen
	 regerror: fix for xopen
	 getopt: fix for xopen
	 magic: add ciao virtual database
	 astconf: posix/strict/xopen implies "standard" conformance
	 fs3d.h: hide mount prototype
	 ast_std.h,mnt.c,features/fs: ncr port tweaks
96-10-31 version 5.0
	 add strtoll() strtoull()
	 sfkeyprintf: upgrade to int_max args
	 ast.h: add ssizeof() to work around unsigned botch
	 conf.sh: add shell actions to conf.tab
	 _DLL*: drop for _BLD_<lib> + __EXPORT__ + __IMPORT__
	 sfio,cdt,vmalloc: kpv update
96-10-11 <ccode.h>: add character code map support
	 procclose: return shell style exit status
	 features/fs: pun statvfs.f_basetype to statvfs.f_reserved7 for mvs
	 uwin: add subdir for uwin additions
	 ast_std.h: swab() is from <stdlib.h>
	 sfio.h: <ast_std.h> if _PACKAGE_ast
	 magic.tab: add mips[1-4], 64-bit
	 port tweaks for sol.sun4 and sun4
96-09-06 strerror: add
	 fmterror: uses strerror
	 str*search: use sfiso646() order
	 strpsearch: add
	 magic: add Magic_t.mime mime type return for magictype()
	 mime.h: add
	 strton: use sfsscanf()
	 strperm: factor in umask() if no who
	 pathtmp: add TMPPATH check
	 libevent: add
	 magic: add discipline to magicopen()
	 mime: add discipline to mimeopen()
96-08-31 regex: fix BM fail table generator
96-08-11 mntread: fix mnt.type for SCO variant
	 conf.tab: add SCO KERNEL_* sysconf() vars
	 fastfind: add findwrite(), fix findread() FF_OFF omission
	 ftwalk: reimplement on top of fts
	 fnmatch,re_comp,regexp: reimplement on top of regex
	 basename,dirname,fmtmsg,fts,ftw,getdate,getsubopt,glob: add
	 hsearch,nftw,realpath,strftime,strptime,swab,tempnam: add
	 tsearch,wordexp: add
	 getcwd: cache last path for easy test
96-07-17 error: sfsync(NiL) ... write ... sfsync(sfstderr)
	 astconf: handle readonly *(DEV|DIR) vars
96-04-01 swapop: fix stupid return value bug
	 features/int.c: fix int_swap generation bug
	 regnexec,regrexec: fix unsigned underflow init error
	 ls.h: fix iblocks() to be in units of LS_BLOCKSIZE
96-02-29 magic: space before function is definition with no call
	 hash: drop hash_info from public interface
	 hash: OBSOLETE hashlast()
	 hash: add Hash_root_t.Hash_last_t to public interface
	 add strsearch() and strnsearch() to complement strlook()
	 add hashkey.h for keyword->long hash
	 pathpath: pathpath(0,0,"",0) disables $0 $_ $PWD relative search
	 sfio: sfstrtod+sfhdr update
	 regex: fix REG_LENIENT to map BRE \[+?|] to ERE [+?|]
	 change _std_malloc iffe test so it doesn't hang on alpha
	 sfhdr.h: features/sfio generates _lib_cvt instead of _i386_cvt
	 ast_hdr.h: add va_copy(a,b) to copy va_list b to a
	 getopt: fix stupid getopt() -> optget() bug
	 sfvprintf: %h? now downcasts
	 regex: handle strto?l() errno in regcomp()
	 sfstrtod: _Sfstrtod_already_defined -> _STUB_sfstrtod
	 ast_std.h: hide valloc() and ignore <strings.h>
	 sfkeyprintf: pass phony va_list for '2'
	 regex: change HIT var type from int to size_t in special()
	 ast.h: add EXIT_STATUS(x) to convert wait() status to sh exit status
96-02-14 regex: add _ to \<...\> isalnum test
	 regex: fix BM inner loop breakout
	 features/types: size_t is signed on some systems! => _ast_size_t
	 sfio: sfrd discipline peek optimization
	 vmalloc: vmalloc.h malloc family macro upgrade
	 tokopen: fix newline bug for non-restore open
	 sfio: no inline for gcc until it emits for -g too
96-02-12 sfio: internal upgrade
96-02-09 regex: Boyer-Moore boundary fix
	 vmalloc: snarf latest
96-02-06 regex: add regrecord() and regrexec() for Boyer-Moore record filtering
	 regex: rearrange regnexec() args to match buffer,count arg style
96-01-31 stk: add STK_NULL to stk.h and stk.c
	 regex: privatize regex.h and fix min re length computation
	 workaround lazy strdup() implementations in features/lib _std_malloc
	 fix stkclose() to free(stream) -- purify missed because of sfio links
	 unused var cleanup
	 port/mnt.c must include <ls.h> to get <ast_fs.h>
	 add SF_FINAL to sfio and stk
	 sfio reads now on natural block boundaries
	 add #!!! <level> <message> !!! to tokline()
	 add REX_BM pre-filter to regcomp/regnexec
96-01-22 add regcomp env.paren overflow checks
96-01-11 add Doug McIlroy's regex (converted to C from C++ by gsf)
	 AT&T Research now
	 sfgetr optimization
	 regex buglets
96-01-05 tweak magic.tab for win32
95-12-25 add !(...) -> (...)! to fmtre()
	 nt tweaks -- functions with no header proto must be defined extern
95-11-24 version 4.1
	 add mnt.h mntopen mntread mntclose
	 convert fmtfs to mnt.h
	 add RE_LEFTANCHOR and RE_RIGHTANCHOR
	 gcc inlines must also have global library function instantiation!
	 add hashview()
	 fix strtape() internal buffer flow
	 fix mntread() fs/dir transposition for uts mnttab
95-10-31 change features/unistd.c includes to break limits-param cycle
	 add cdt from kpv
	 sfio snarf from kpv
	 add [ht]search for _WIN32
95-10-11 clarify PARANOID pathcheck() warning
	 fix procopen() LIB_SPAWN environ bug with setenviron() cache
	 fix setenviron() bug that forgot to reset environ if == 0
	 add %Z '\0' output format to sfkeyprintf()
	 sfio snarf for sfvprintf fix
	 allow multiple hashscan() with scope caveat
	 add comp/fakelink.h to synthesize a few symlink text patterns
	 add !<xxx> magic to misc/magic.tab
	 add FTW_TOP to inhibit recursion (for ftw side effects on top level)
	 add memfatal() common malloc fatal exception message
	 add dos \r\n test to misc/magic.c/cklang()
	 sftmp() O_EXCL+random to avoid collisions
	 pathtemp() uses sftmp() randomizing
	 features/fs uses SF_APPENDWR
	 sftmp() uses pathtemp() -- don't worry, its not circular
	 a few more _WIN32 compatibility additions
	 realloc fixed to use VM_RSCOPY|VM_RSMOVE instead of obsolete 1
	 add hashlook(tab, oldname, HASH_RENAME, newname)
	 a few more tweaks to satisfy port warnings
	 add _SFIO_INLINE_PRIVATE to provide real function too
	 fix <dirent.h> installation test
	 oops object / shared library compat with _sfgetl2 _sfgetu2
95-09-11 add getopt() compatibility
	 add fstat,lstat,mknod,stat fixes for _x versions in sys/stat.h
	 add getconf CONFORMANCE - posix for things that aren't ast default
	 sfio_t.h: #ifndef _SFIO_H #include "sfio.h" #endif
	 snarf vmalloc from kpv
95-08-11 fix malloc bug in magic
	 update linux and bsd 386 magic entries
	 error_info.auxilliary returns new level, |=ERROR_OUTPUT if msg done
	 drop fnmatch from strmatch for sparc (solaris) until it collates
95-07-17 fix port/astconf universe initialization
	 fix misc/optget opt_info.nopt initialization
	 drop tmset() TZ=... because it only worked when TZ=... was ignored
95-05-09 mongo <ast.h> namespace cleanup
	 drop > 2 year old obsolete interfaces
	 sfvprintf.c fix for (char:8 short:16 int:32 long:64) architectures
	 TMP_MAX back into conf.tab
	 pathbin() and pathshell() now use astconf()
	 fix pathtemp() to not cache getenv("TMPDIR")
	 fix ftwalk() metaphysical to handle non-dirs too
	 initialize *_info = { 0 }; for ancient ld semantics (NeXT)
	 fix magic() to do vmfree()
	 astconf(X_OK) must prefix lines with "getconf"
	 use <wchar.h> and wctype in strmatch() if available
	 _lib_utime_now checks utime(path,0)
	 _lib_poll_notimer checks poll(x,0,timeout)
	 add another _lib_utime_now check to port/touch.c
	 fix dd_buf cast in dir/opendir.c
	 split getconf.h into conftab.h and conftab.c for :READONLY:
	 use mbtowc() only if MB_LEN_MAX>1
	 sfio char* -> Void_t* cleanup
	 handle old syntax in misc/magic.c
	 sigdata.c holds readonly signal strings
	 pathcheck() does AT&T checks for tools matching PARANOID - yuk
	 unused var cleanup
	 deprecate hash_info in favor of hashlast()
	 fix bad conf.sh ksh integer interactions
	 dll cleanup
	 magic.c falls back to malloc for now
	 add environ to <ast.h> -- C library global data syms are *RESERVED*
	 sfhdr.h memccpy(1,2,3,size_t) prototype
95-04-01 version 4.0
	 convert to vmalloc
	 allow sigcritical() nesting mismatch to work around vfork() bug
	 add strexpr() primitive for streval() with user handle (like ftwalk)
	 add <magic.h> and magic.c file command magic interface
	 update magic mail message entry
	 fix keyprintf() invisible char count nesting bug
	 add sfstrnew(SF_READ|SF_WRITE) for alternate sfstropen() modes
	 sfstrnew(SF_READ) but reading requires sfseek(), sfreserve()
	 add conf.tab and conf.sh to nail C/POSIX limits/unistd macros
	 add getconf() string interface to *conf*
	 _DLL_INTERMEDIATE_DATA for systems that require indirect globals
	 _DLL for building shared libraries with _DLL_INTERMEDIATE_DATA
	 vecfile() restricted to S_ISREG()
	 add spawnveg() for job control
	 convert procopen() PROC_PGRP(id) to spawnveg()
	 fmterror() returns error text given errno (strerror() does same)
	 fmtsignal() returns signal text given errno (strsignal() does same)
	 {sig_name,sig_text,SIG_MAX} -> sig_info.{name,text,sigmax}
	 liberror("",...) omits [%s library] prefix
	 update features/signal.c table
	 add vmdisc() and change vmnewof() to use vmresize()
	 fix conf.sh to allow refs to previously defined limits
	 fix undefined entries in getconf()
	 magic data in magic.tab
	 fix stropt() pointer cast
	 vmalloc() exception handler replaces nomalloc()
	 merge sigdata.c into fmtsignal.c -- sun link needs function w/ data!
	 sftmp() bug fix
	 drop local <unistd.h> even with _POSIX_SOURCE
	 fix vmstrdup() macro arg miscount
	 fix conf.sh to handle enum'd symbolic constants in unistd.h
	 drop malloc() et.al. prototypes from vmalloc.h
	 fix sfvprintf() %d argument reference
	 add OSF/1 AES symbol(s) to conf.tab
	 determine standards prefix from conf.tab
	 add _CS_SHELL to conf.tab
	 getpath() default is confstr(_CS_PATH)
	 getshell() default is confstr(_CS_SHELL)
	 unify keyprintf user function args (should have learned by now!)
	 add quad type to magic
	 add astfeature() to unify universe style dynamic features
	 add ftwflags() to determine FTW_* flags from astfeature()
95-03-11 fix stropt() to not modify its *const* arg
	 handle "'\ quotes and chresc() in stropt() values
	 , treated like :space: between stropt() options
	 fix procopen() fd dup to ignore self-dups
	 add library id[] to misc/state.c
	 add ftwalk(FTW_METAPHYSICAL) for posix -H
	 sfvprintf() now handles balanced () in %()
	 add tmfmt() with buffer size check to replace tmform()
	 add fmttime() calling tmfmt() to fit fmt*() mold
	 add <keyprintf.h> and keyprintf() to support %(...)? in commands
	 add Hash_table_t for size==0 in stropt()
	 add EXTTYPE extended header to tar.h
95-02-14 sfmove() buffer size overflow fix
	 add _SFSTDIO_H to sfio.h
	 rename setenv() to setenviron() -- posix finally decided
	 rename <option.h> opt_* to opt_info.*
	 update features/unistd.c for _SC_* and _PC_* posix additions
95-01-19 (char*)uchar cast in fmtesc()
	 fix hash bucket memory leak in hashlook() [via John Mocenigo]
	 update strings/strtape()
	 fix optget()/optjoin() to handle leading +
	 add ALIGN_ prefix to <align.h> identifiers
95-01-11 change tm/*.c tmset(0) to tmset(tm_info.zone) to keep user setting
	 fix tmform() %Z null pointer dereference
95-01-01 add this RELEASE file
	 fix strperm() to properly handle "644 file"
	 fix tokline() to return last '\0' terminated line in string
	 fix tokscan() to properly handle \\n splice
	 add fmtesc() to complement stresc()
	 add LS_NUMBER to fmtls()
	 drop spurious optusage() ' '

:::::::: libcmd ::::::::

04-02-29 cp.c: decouple -f and -i for standard CONFORMANCE
	 cp.c: mv attempts rename() before remove()+rename()
	 date.c: -f format or +format disables system clock set
04-02-14 cp.c: add -F --fsync to call fsync(2) for each copied file
04-01-05 head.c: -s now uses opt_info.number for >2Gb skip
03-09-18 tail.c: add --log
03-09-11 rm.c: add --unconditional
03-08-11 fold.c: add --delimiter=c to break at c
03-07-28 features/time: change settimeofday() test to 2nd arg of (void*)0
	 expr.c: add {match,substr,index,length,quote}
03-07-15 fmt.c: fix trailing space bug
03-06-20 uname.c: fix -p constant string overwrite
03-06-04 stty.c: add undef to control assignment docs
03-05-31 uname.c: add -f and sysinfo()/confstr() compatibility via astconf()
03-05-27 rm.c: fix inappropriate "/.." append path overflow
	 cut.c: snarf from dgk
03-05-18 rm.c: check st_nlink to verify progress w.r.t. ftwalk/fts
03-05-15 join.c: fix stealth -v2 bug (thanks ahs)
03-05-04 wc.c: drop trailing space for `wc -l < file'
03-03-21 date.c: add %Q/recent/distant/ docs
03-02-19 date.c: fix %+|!flag docs
02-11-14 update for cmdinit() 4th arg and ERROR_NOTIFY for interrupt cleanup
02-10-02 date.c: tmform() => tmfmt()
02-09-30 date.c,uname.c: change execv() calls to procrun(): exec|exit => bad
02-09-06 wclib.c: fix 1 char-at-a-time miscount bug
02-08-19 chgrp.c: convert to use <cdt.h>
02-07-23 join.c: fix comm snarf typo
02-04-05 date.c: add %u
02-01-24 stty.c: ifdef a few more macros for uts (yes, its still running)
01-12-14 date.c: clarify %z doc
01-10-31 mkdir.c: mkdir() on existing dir could fail with errno!=EEXIST
	 uname.c: add execve() loop check for unknown options
01-10-29 tail.c: SF_SHARE on only if not reading through EOF
01-10-11 getconf.c: fix usage typos
01-09-11 cp.c,cmd.h: handle . in argv[0]
	 cp.c: add O_BINARY to all open() calls
01-09-06 tail: input streams must be SF_SHARE -- duh
01-07-16 stty: fix cntl() macro for CC_NATIVE!=CC_ASCII
01-05-31 date: fix /bin/date fallback logic
	 stty: fix a few mismatched flags, -a and -g option logic
	 stty: tone down sane to modify current settings rather than from zero
01-05-01 uname: -i => -h, add sol.sun4 -i, add sgi -R, punt to /usr/bin/uname
01-04-17 date,rm: add
01-03-07 cp: fix readonly string mod on "."
01-01-23 cp: `cp foo' => `cp foo .' only for CONFORMANCE!=standard
00-12-01 cut: multibyte support
00-10-31 mkdir: handle races by checking EEXIST
00-09-20 cp: copy argv to stack before modifying in place
00-05-18 add setlocale(LC_ALL,"")
00-04-30 join: drop wierd opt_info.argv reference
00-03-17 expr: add == operator -- duh
	 cp,ln,mv: delay pathcanon() on destination to verify `cp a b/.'
	 getconf: use astgetconf for proper message control
	 ERROR_translate: dictionary update
00-03-08 tail: handle multiple -f files
00-03-07 fmt: add
00-03-07 dirname: handle PATH_LEADING_SLASHES as documented
	 tail: accept + options
00-02-14 chmod: --ignore-umask to ignore umask(2) in symbolic expressions
	 chmod,chgrp,cp: use FTS_NOSEEDOTDIR for correct path construction
	 cat: fix -n (was ignored, wow)
00-01-27 getconf: add "-a" and "-v spec" for sol7.* compatibility
99-09-09 join: fix -j1 vs. -j 1, add --ignorecase
99-06-22 paste: defualt delim in writable string
99-06-16 cat: fix --dos-ouput typo
99-06-11 cp: tighten chown() diagnostics
99-06-08 expr: nothing for NULL string bug fix
99-05-21 paste: fix missing newline columnize bug
99-05-20 mv: do not check for `mv foo foo' since rename() handles it
99-05-01 cmp,comm,cp/mv/ln,expr,fold,getconf,head: long options
	 join,logname,paste,pathchk,tail,tee: long options
99-04-10 uname: long options, stdize -a
	 chmod,head,tail,rev: long options
	 cut: long options, pass regression test 02
99-04-07 cat: long options, fix O_TEXT modes
99-01-11 tail: fix +n
	 join: another ggs/psm bug
	 join: all 1 and/or 2 to be unseekable
99-01-01 cp: fix -p
	 chmod: drop -l option because of clash with l (lock) mode
98-12-25 cat: add -T to sfopen(,,"rt")
98-11-11 chgrp,chmod: cannot open file stream => not found
	 join: fix another ggs/psm bug; thanks guys
98-10-20 cp: fix cp -rp to update dir times too
98-09-22 join: fix ggs null field bug
98-08-11 join: fix last regression test bug
98-05-29 join: add jp->common to handle boundary conditions
98-03-11 cat,cp,rev,tee: fix sfmove() error checks
98-03-01 join: fix bug that emitted records more than once after eof
	 cp: fix sfmove() error check
98-02-14 cp: -R physical, -[HLP], -r getconf(PATH_RESOLVE)
98-01-11 cp: check sfclose() return value
98-01-07 chown,chgrp,chmod: use fts for -R
	 mkdir: fix -p default mode
97-12-07 mkdir: fix umask() reset
97-11-11 chown,chgrp: proper interpretation of -h,-l for lchown()
	 chown,chgrp: only chown() if uid or gid change
97-10-31 mkdir: do umask right
97-08-11 cmdinit: clear opt_info.index to allow multiple calls
	 cp,ln,mv: add
97-07-17 join: fix a few more -a bugs
97-05-31 expr: optget() only if CONFORMANCE==standard
97-04-01 join: fix a few bugs that make it work!
96-12-25 head: sfset(sfstdin,SF_SHARE,1)
	 Makefile: add -last to cmd lib list
	 drop function __IMPORT__
96-08-11 tail: check for truncated file and rewind for -f
96-04-08 update <cmd.h>
96-02-29 uname: -a like std, -l for everything
	 id: add -a (default)
96-02-14 wc: speed up inner loop newline breakout
96-01-30 unused var cleanup
96-01-01 AT&T Research now
	 pathchk: handle getcwd(0,0) error
	 expr: switch to <regex.h>
95-11-11 add expr.c
	 fix cut exit code and -s optimization
95-10-11 add extern b_* to cmd.h
	 add void* context 3rd arg to b_main()
95-05-09 add getconf
	 cat -u avoids mmap
	 add chown|chgrp -m uid|gid map file
	 add chown|chgrp -P for systems with lchown(2)
	 chown|chgrp -P => lstat() too!
	 chmod|chown|chgrp -HLP
95-04-01 version 1.2
	 add rmdir
95-02-14 fix mkdir -p symlink bug
	 fix mkdir '/' skip bug that went one too far

:::::::: libdll ::::::::

04-01-30 dllfind.c: dllplug(error_info.id) then dllplug(0)
04-01-28 dllscan.c: update for new plugin scheme: lib/foo/bar.xxx
	 dllplug.c: add dllplug() for plugin dllfind()
03-03-12 dllfind.c: dlopen() with RTLD_GLOBAL|RTLD_PARENT defaults
03-02-11 dllscan.c: change LIBPATH to <dir>[:<env>[:<pat>]][,...]
03-01-08 dllscan.c: hack version logic again -- is consistency rocket science?
03-01-07 dlfcn.c: fix darwin.ppc dlopen/dlsym/dlclose
02-11-18 dllfind.c: add path,size args (with backwards compatibility checks)
02-11-15 dllfind.c: check for ./path if '.' in path but no '/'
02-08-30 dllfind.c: fix a bug that returned uninitialized value on not found
02-08-28 dllscan.c: handle and display bin as a sibling dir
02-07-31 dllscan.c: add dllsopen,dllsread,dllsclose
	 dllfind.c: use dllsopen,dllsread,dllsclose
02-07-26 dllfind.c: add dllinfo()
02-06-27 dllnext.c: define _GNU_SOURCE to enable RTLD_NEXT
02-03-17 dllfind.c: fix dll prefix search (for cygwin)
02-01-11 features/dll: include <dlfcn.h> only if _hdr_dlfcn&&_lib_dlopen
01-10-31 dlfcn.c: change hp.pa dlopen() prototype (<dlfcn.h> but no -ldl!)
01-09-25 dllfind: add LIBSUFFIX
01-07-17 dllfind: do at least one dlopen() to prime dlerror()
01-05-29 dlopen: fix dlopen(0,0) for HP
01-04-20 dllfind: use getconf HOSTTYPE LIBPATH LIBSUFFIX
01-02-14 features/dll: fix unbalanced ' quote and ancient hostinfo reference
00-01-26 dlllook: add -- dlsym() with `_' weak prefix fallback
99-04-01 features/dll: drop <stdio.h> -- iffe protos printf
99-03-19 static=1 for all but win32.*
98-06-01 dllfind: fix version search
98-03-11 features/dll: probe for _DLL_RLD_SYM
98-03-01 dllnext: fix to work!
98-01-23 -ldl test moved to lib0ast
98-01-11 update for astconf("LIBPATH")
	 add dllnext(flags) to uncover next layer
	 dllfind() and dllnext() in separate files (for 3d)
97-10-11 move from libast so libast can link static
