-------------------------------------------------------------------------------
-- Copyright 2018-2023,2024 Thomas E. Dickey                                 --
-- Copyright 1998-2017,2018 Free Software Foundation, Inc.                   --
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-------------------------------------------------------------------------------
-- $Id: NEWS,v 1.4114 2024/04/27 18:00:35 tom Exp $
-------------------------------------------------------------------------------

This is a log of changes that ncurses has gone through since Zeyd started
working with Pavel Curtis' original work, pcurses, in 1992.

Changes through 1.9.9e are recorded by Zeyd M Ben-Halim.
Changes since 1.9.9e are recorded by Thomas E Dickey.

Contributors include those who have provided patches (even small ones), as well
as those who provide useful information (bug reports, analyses).  Changes with
no cited author are the work of Thomas E Dickey (TD).

A few contributors may be cited in this file by their initials.
Each accounts for half of one percent or more of the changes since 1.9.9e.
See the AUTHORS file for the corresponding full names.

Changes through 1.9.9e did not credit all contributions;
it is not possible to add this information.

20240427 6.5 release for upload to ftp.gnu.org
	+ update announcement
	+ fixes/corrections for manpages (patches by Branden Robinson).
	+ fix redefinition of CASTxPTR, for legacy Unix.

20240420
	+ improve formatting/style of manpages (patches by Branden Robinson).
	+ compiler warning/portability fixes.

20240414
	+ build/bug-fix for check-size feature (reports by Sam James, Gabriele
	  Balducci).

20240413
	+ improve formatting/style of manpages (patches by Branden Robinson).
	+ provide for padding in check-size feature, using new_prescr() to
	  pass interim SCREEN pointer.
	+ complete change for opaque options (Gentoo #928973, cf: 20231021).
	+ update package /debian/rules and related lintian overrides
	+ revise progs.priv.h to provide for NC_ISATTY reuse

20240330
	+ remove masking of ISIG in cbreak() (report by Benno Schulenberg).
	+ modify test/test_mouse.c to use curses api for raw/noraw.
	> improved configure macros from other program development:
	  + build-fix for clang on Solaris
	  + suppress filename/timestamp in gzip'd manpages (suggested for
	    byacc by Andrin Geiger)

20240323
	+ modify tput/tset reset feature to avoid 1-second sleep if running in
	  a pseudo-terminal.
	+ modify check-size feature to avoid using it in a pseudoterminal
	  (cf: 20231016)
	+ improve formatting/style of manpages (patches by Branden Robinson).
	+ trim a space after some "-R" options, fixing builds for applications
	  built using clang and ncurses on Solaris.

20240309
	+ modify xgterm to work around line-drawing bug -TD
	+ use CSI 3J in vte-2017 (report by Sven Joachim)

20240302
	+ add configure check for MB_LEN_MAX, to provide warning as needed.
	+ improve formatting/style of manpages (patches by Branden Robinson).
	+ fix regression in tput which disallowed hex/octal parameters (report
	  by Werner Fink, cf:  20230408)
	+ update config.guess, config.sub

20240224
	+ improve man/curs_mouse.3x style (Branden Robinson, Sven Joachim).
	+ provide for CCHARW_MAX greater than 1
	+ eliminate use of PATH_MAX in lib_trace.c
	+ work around misconfiguration of MacPorts gcc13, which exposes invalid
	  definition of MB_LEN_MAX in gcc's fallback copy of limits.h (MacPorts
	  #69374).

20240217
	+ add vt100+noapp, vt100+noapp+pc, xterm+app+pc, xterm+decedit from
	  xterm #389 -TD
	+ fix inconsistent description of wmouse_trafo() (Debian #1059778).
	+ modify wenclose() to handle pads (Debian #1059783).
	+ improve manpage discussion of mouseinterval() (Debian #1058560).

20240210
	+ compiler-warning fixes, while investigating an optimizer bug in
	  "gcc (MacPorts gcc13 13.2.0_4+stdlib_flag) 13.2.0"
	  which results in only the first byte of a multibyte character being
	  printed to the screen.

20240203
	+ minor changes to tracing and locale-checks.

20240127
	+ amend change to z39-a (report by Sven Joachim).
	+ use xterm+nopcfkeys, vt52-basic, dec+pp, dec+sl, vt52+arrows,
	  hp+pfk+cr, klone+acs, klone+color, klone+sgr, ncr160wy50+pp
	  to trim -TD
	+ NetBSD-related fixes for x68k and wsvt25 (patch by Thomas Klausner)

20240120
	+ improve formatting/style of manpages (patches by Branden Robinson).
	+ amend discussion of aliases in tput.1
	+ use ansi+sgrbold, ansi+sgrdim, ansi+sgrso, ansi+sgrul, ansi+tabs
	  ecma+color, ecma+sgr, vt100+4bsd, vt100+pfkeys, vt220+pcedit
	  xterm+256color, xterm+acs, xterm+nopcfkeys, xterm+pcf2 to trim -TD
	+ modify configure scripts/makefiles to omit KEY_RESIZE if the
	  corresponding SIGWINCH feature is disabled.

20240113
	+ improve formatting/style of manpages (patches by Branden Robinson).
	+ modify dist.mk to avoid passing developer's comments in manpages into
	  the generated html documentation.
	+ use ansi+local, ansi+local1, ansi+pp, ansi+rca, ansi+rca2, ansi+sgr
	  to trim -TD
	+ restore padding for wy520* and vt320-k311 (report by Sven Joachim).

20240106
	+ use ansi+arrows, ansi+apparrows, ansi+csr, ansi+erase, ansi+idc,
	  ansi+idc1, ansi+idl, ansi+idl1, ansi+inittabs to trim -TD
	+ minor manpage formatting changes for consistency.
	+ modify doc-html test package's install-directory, per lintian.
	+ add attr_get.3x to man_db.renames.in (patch by Sven Joachim).

20231230
	+ improve formatting/style of manpages (patches by Branden Robinson).
	+ add ms-vt100-16color, winconsole -TD
	+ add rio, rio-direct -TD
	+ add mostlike -TD
	+ add wezterm, contour -TD

20231223
	+ improve formatting/style of manpages (patches by Branden Robinson).

20231217
	+ improve formatting/style of manpages (patches by Branden Robinson).
	+ correct an assignment in infocmp "-u" for detecting if a boolean
	  is unset in a base entry and set in a use'd chunk, i.e., if it was
	  cancelled.
	+ modify infocmp "-u" option to not report cancels for strings which
	  were already cancelled in a use'd chunk.
	+ join two lines in infotocap.3x to eliminate a spurious "description"
	  link in installed manpages (report by Sven Joachim).
	+ fix typo in NEWS (report by Sven Joachim).

20231209
	+ modify infocmp "-u" option to not report cancels in use'd chunks
	  which are not mentioned in the top-level terminal description.
	+ remove xterm+sm+1006 from tmux (Debian #1057688).
	+ used "infocmp -u" to help trim redundant capabilities -TD
	+ updated man/edit_man.sh to allow for "\%" markers embedded after
	  bold font escapes in manpage cross-references (Debian #1057651).
	+ reduce compiler-warnings in configure checks

20231202
	+ correct initial alignment of extended capabilities in infocmp, so
	  that the "-u" option can be used for more than two terminal types.
	+ improve formatting/style of manpages, changing environment variables
	  to italics (patches by Branden Robinson).

20231125
	+ add information about "ttycap", termcap's forerunner, to tset.1
	  (patch by Branden Robinson).
	+ improve formatting/style of manpages, including section reordering
	  (patches by Branden Robinson).
	+ modify usage messages in configure script, bracketing optional values
	  (report by Branden Robinson).

20231121
	+ amend fix for Debian #1055882, correcting nul terminator check in
	  waddnstr (Debian #1056340).

20231118
	+ improve description of length-parameter and error-returns in several
	  manpages:  curs_addchstr.3x, curs_addstr.3x, curs_addwstr.3x,
	  curs_in_wch.3x, curs_in_wchstr.3x, curs_inchstr.3x, curs_ins_wstr.3x,
	  curs_insstr.3x, curs_instr.3x, curs_inwstr.3x
	+ amend parameter check for entire string versus specific length in
	  winsnstr() and wins_nwstr() to match Solaris.
	+ make similar correction to wins_nwstr().
	+ correct loop termination condition in waddnstr() and waddnwstr()
	  (Debian #1055882, cf: 20201205).

20231111
	+ used "infocmp -u" to help trim redundant capabilities -TD
	+ add limit checks in infocmp needed when processing extended
	  capabilities with the "-u" option.
	+ fix inconsistent sort-order in see-also sections of manpages.
	+ fix a few compiler warnings for Solaris 10.
	+ modify endwin() to return an error if it is called again without an
	  intervening screen update (report by Rajeev Pillai, NetBSD #57592).

20231104
	+ modify reset command to avoid altering clocal if the terminal uses a
	  modem (prompted by discussion with Werner Fink, Michal Suchanek,
	  OpenSUSE #1201384, Debian #60377).
	+ build-fixes for --with-caps variations.
	+ correct a couple of section-references in INSTALL.

20231028
	+ move xterm focus mode 1004 from xterm+sm+1006 into xterm+focus as
	  fe/fd capabilities, like vim (vim-pr #13440).
	+ modify --with-pkg-config-libdir option to make "libdir" the default,
	  as documented, rather than "auto" (report by Branden Robinson).
	+ improve messages from configure script (patches by Branden Robinson).

20231021
	+ use oldxterm+sm+1006 in vte-2014 (report by Benno Schulenberg) -TD
	+ add ansi+apparrows -TD
	+ change defaults for configure opaque and widec options (prompted by
	  discussion with Branden Robinson).
	+ minor cleanup of compiler- and manpage-warnings.

20231016
	+ make the recent change to setupterm optional "--enable-check-size"
	  (Debian #1054022).

20231014
	+ improve formatting/style of manpages (patches by Branden Robinson).
	+ updated configure script macro CF_XOPEN_SOURCE, for uClibc-ng
	+ update config.guess, config.sub

20231007
	+ improve loop-limit for get_position().
	+ improve manual description of immedok (Debian #1053603).
	+ fix a few formatting issues with manpages (Debian #1053123).
	+ improve formatting/style of manpages (patches by Branden Robinson).

20231001
	+ modify setupterm to provide for using ANSI cursor-position report (in
	  user6/user7 terminfo capabilities) to obtain screensize if neither
	  environment variables or ioctl is used.  The ncurses test-program
	  with options "-E -T" demonstrates this feature.
	+ improve error messages in tic (patch by Branden Robinson).
	+ improve formatting/style of manpages (patches by Branden Robinson).
	+ modify test/clip_printw.c to optionally test non-wrapped updates.
	+ fix reallocation loop for vsnprintf() in _nc_sprintf_string() by
	  copying the va_list variable (patch by Ian Abbott).

20230923
	+ improve formatting of manpages (patches by Branden Robinson).
	+ amend change to delscreen() to limit the windows which it creates to
	  just those associated with the screen (report by Frederic Boiteux,
	  cf: 20220813).

20230918
	+ new tarball/errata (report by Sven Joachim).

20230917
	+ improve formatting of manpages (integrated patches by Branden
	  Robinson).
	+ correct limit for name-length in write_entry.c (report/testcase by
	  Luna Saphie Mittelbach).
	+ limit delays to 30 seconds, i.e., padding delays in terminfo, as well
	  as napms() and delay_output() functions.
	+ improve a few pointer-checks.
	+ improve parsing in _nc_msec_cost, allowing a single decimal point.

20230909
	+ improve formatting of manpages (patches by Branden Robinson), for
	  captoinfo.1m and terminfo.5
	> patches by Nicholas Marriott:
	  + use string-hacks in alloc_entry.c, alloc_type.c and hardscroll.c,
	    overlooked due to compiler changes in recent OpenBSD releases.
	  + add "-6" option to ncu2openbsd script.

20230902
	+ improve description of search rules for terminal descriptions in
	  terminfo manpage (report by Sven Joachim).

20230826
	+ fixes for compiler-warnings.
	+ update config.guess, config.sub

20230819
	+ various manpage-formatting fixes.
	+ correct formatting of table header in curs_inopts.3x (Branden
	  Robinson).
	+ correct manpage description of panel_hidden (report by Benjamin
	  Mordaunt).

20230812
	+ add/use putty+cursor to reflect amending of modified cursor-keys in
	  2021 -TD
	+ add ecma+strikeout to putty -TD
	+ add functions to query tty-flags in SCREEN (request by Bill Gray).

20230805
	+ fix a few manpages needing tbl marker, seen by lintian warning.
	+ fixes for compiler-warnings.
	+ minor grammatical fix for manpages (Branden Robinson).

20230729
	+ improve manpages for wgetnstr() and wget_wnstr().
	+ modify MinGW configuration to provide for running in MSYS/MSYS2
	  shells, assuming ConPTY support (patch by Pavel Fedin).
	+ add assignment in CF_MAN_PAGES to fill in value for TERMINFO_DIRS in
	  ncurses, terminfo and tic manpages (patch by Sven Joachim).

20230722
	+ add "auto" default for --with-xterm-kbs configure option.

20230715
	+ correct wadd_wch_literal() when adding a non-spacing character to a
	  double-width character.
	+ improve manual page for curs_util.
	+ improve manual page for wadd_wch().

20230708
	+ add linux+kbs for terminals which imitate xterm's behavior with
	  Linux -TD
	+ modify MinGW driver to return KEY_BACKSPACE when an unmodified
	  VK_BACK virtual key is entered (prompted by patch by Pavel Fedin,
	  Savannah #64292).
	+ disallow using $TERMINFO or $HOME/.terminfo when tic "-o" option is
	  used (report by Sven Joachim, Debian #1040048).

20230701
	+ fix mandoc warnings about unnecessary markup.
	+ improve parameter check in tparm_setup()

20230625
	+ adjust man/make_sed.sh to work with dates as the third field of TH.
	+ fixes for out-of-memory condition (report by "eaglegai").

20230624
	+ fixes for out-of-memory condition (report by "eaglegai").

20230617
	+ markup manpages with revision information (prompted by discussion
	  with Bjarni Ingi Gislason).

20230615
	+ modify _nc_read_file_entry() to show relevant filename in warnings.
	+ improve checks in convert_string() for corrupt terminfo entry (report
	  and test-case by Gregory James Duck).

20230610
	+ improve manpages discussing file descriptors in low-level functions.
	+ modify flushinp to use file descriptors in SCREEN, rather than from
	  TERMINAL, and check if they are for a terminal, like SVr4.
	+ modify mcprint to use file descriptor in SCREEN, for consistency.
	+ add xterm+focus to foot+base (patch by Daniel Ekloef).
	+ correct definition of Charable() for non-wide ncurses library (report
	  and test-case by Zbigniew Baniewski).

20230603
	+ add configure option --with-strip-program, to override program
	  chosen by the install program for stripping executables (prompted
	  by discussion with Aapo Rantalainen).
	+ fix typo in INSTALL (report/patch by Aapo Rantalainen).
	+ improve error-checks for isEILSEQ()
	+ increase MB_CUR_MAX to 16, matching glibc's MB_LEN_MAX.
	+ corrected mouse mask in test/testcurs.c
	+ improve thread lock in lib_trace.c

20230527
	+ fixes for compiler warnings/cppcheck.

20230520
	+ fixes for compiler warnings in MinGW environments.

20230514
	+ modify test-package "ncurses6-doc" to use manpage-aliases, which in
	  turn required a change to the configure script to factor in the
	  extra-suffix option when deriving alias names.
	+ add mode 1004 to xterm+sm+1006 from xterm #380 -TD

20230506
	> build-fixes related to configure-options and/or platform:
	  + fix for --enable-fvisibility
	  + fix for unusual values of --with-rel-version
	  + fix for unusual values of --with-abi-version
	  + fix for --disable-tcap-names
	  + fix for termcap in nc_access.h (report by Werner Fink).

20230429
	+ revise recent change to _nc_write_entry to isolate it to a Cygwin bug
	  (cf: 20230311)
	+ amend fix for wgetnstr, wgetn_wstr to use cbreak mode unless raw
	  mode was set (cf: 20210522).
	+ fix a few warnings from cppcheck, etc.
	+ correct copy/paste error in nc_access.h (report by Werner Fink).

20230424
	+ check return value of _nc_save_str(), in special case for tic where
	  extended capabilities are processed but the terminal description was
	  not initialized (report by Ziqiao Kong).
	+ regenerate llib-* files.

20230423
	+ add tiscan_s() to help applications check formatting capabilities
	  that would be passed to tiparm_s, etc.
	+ add tiparm_s() to provide applications a way to tell ncurses what
	  the expected parameters are for a capability (tmux #3531).
	+ improve check in lib_tparm.c, ensuring that a char* fits into a
	  TPARM_ARG.
	+ add --disable-setuid-environ configure option (request by Sven
	  Joachim).
	+ drop compatibility with obsolete versions of tack, e.g., pre-1.08
	  (Debian #1034549, cf: 20170722).

20230418
	+ improve checks for limits on privileged execution:
	  + modify _nc_syserr_abort() to use _nc_env_access(), rather than
	    only checking root uid.
	  + use getauxval() when available, to improve setuid/setgid checks.
	  + modify test packages to disable root access/environ options.
	+ modify tgoto() to accept no-parameter capabilities, for joe editor
	  (OpenSUSE #1210485, Gentoo #904263).

20230415
	+ configure script fixes:
	  + fix copy/paste error in configure option --disable-root-access
	    (report/patch by Sven Joachim).
	  + modify CF_XOPEN_SOURCE macro's amend default case to avoid
	    undefining _XOPEN_SOURCE if _POSIX_C_SOURCE is defined.
	+ modify test_tparm to account for extended capabilities.
	+ add checks in tparm() and tiparm() for misuse of numeric parameters,
	  overlooked in 20230408.
	+ fix errata in clear.1 and curs_terminfo.3x

20230408
	+ document limitations of tparm, and error-returns in curs_terminfo.3x
	+ document limitations of tgoto, and error-returns in curs_termcap.3x
	+ add xterm+focus to alacritty+common (patch by Christian Duerr).
	+ add "-v" option to tput, to show warnings.
	> improve checks for malformed terminfo data (report/analysis by
	  Jonathan Bar Or, Michael Pearse, Emanuele Cozzi).
	  + make the parameter type/count checks in _nc_tiparm() more stringent
	  + update tgoto() to account for _nc_tiparm() changes
	  + add checks in tparm() and tiparm() for misuse of string parameters
	  + add special cases in tput to handle extensions Cs/Ms parameters
	  + ignore compiled-terminfo where the array sizes exceed the standard

20230401
	+ modify experimental Windows driver to work with xterm mouse protocol.
	+ remove DECCOLM+DECSCLM from foot (patch by Daniel Ekloef).

20230311
	+ improve manpage description for addch versus unctrl format used for
	  non-printable characters.
	+ modify version-check for gcc/g++, now works for msys2.
	+ modify check in _nc_write_entry() for multiply defined aliases to
	  report problems within the current runtime of tic rather than for
	  conflicts with pre-existing terminal descriptions.
	+ allow for MinGW32-/64-bit configurations to use _DEFAULT_SOURCE
	+ clarify interaction of -R option versus -C, -I and -r in infocmp
	  manpage.
	+ build-fix in lib_win32con.c (cf: 20230211).

20230225
	+ build-fixes for rpm test-packages.
	+ add/use configure check for clock_gettime(), to supersede
	  gettimeofday().

20230218
	+ configure-script improvements:
	  + recent msys2 headers work with _DEFAULT_SOURCE; amend check
	  + use $ac_includes_default in most cases where stdlib.h should work
	  + use #error consistently vs "make an error"
	  + add configure macro for gettimeofday vs inline check

20230211
	+ set dwShareMode in calls to CreateConsoleScreenBuffer() (patch by
	  Hannes Domani).
	+ use CreateFile with "CONIN$", "CONOUT$" rather than GetStdHandle to
	  obtain a handle on the actual console, avoiding redirection in the
	  MinGW/Win32 configurations (adapted from patch by LIU Hao).

20230128
	+ document XF, kxIN and kxOUT -TD
	+ add note on sun/wscons/cmdtool/shelltool -TD
	+ modify configure script check for pkg-config library directory to
	  take into account an older version 0.15.0 which used PKG_CONFIG_PATH
	  but not PKG_CONFIG_LIBDIR

20230121
	+ correct limit-check when dumping tc/use clause via tic -I (report by
	  Gabriel Ravier).
	+ correct a check for manpage-alias in edit_man.sh, to work with out of
	  tree builds (report by Sven Joachim).

20230114
	+ change RV to XR/xr, to avoid conflict with pre-existing usage in vim,
	  to use RV/rv to denote DA2 and its response (discussion with Bram
	  Moolenaar) -TD
	+ add XF flag to xterm+focus so that termcap applications can be aware
	  of terminals which may support focus in/out -TD
	+ use xterm+focus in xterm-p370 and tmux -TD
	+ improve configure-script macros vs compiler warnings.

20230107
	+ add --with-abi-altered configure option (prompted by discussion with
	  Brian Inglis).
	+ add BSD erase2 to characters handled by tset/reset.
	+ improve configure-script macros vs compiler warnings.
	+ regenerate configure scripts with autoconf 2.52.20221202
	+ add RV report+version (suggested by Bram Moolenaar).
	+ add comment to bracketed+paste explaining that vim patch 9.0.1117 is
	  needed for use with the updated xterm descriptions (suggested by Bram
	  Moolenaar).

20221231 6.4 release for upload to ftp.gnu.org
	+ update release notes
	+ regenerate llib-* files.
	+ correct PS vs PE names in bracketed+paste (report by Bram Moolenaar)
	  -TD

20221224
	+ add mutex lock/unlock in a few places reported by thread-sanitizer
	+ add/use bracketed+paste to help identify terminals supporting this
	  xterm feature (prompted by discussion with Bram Moolenaar) -TD

20221217
	+ install Ada95 sample programs in libexecdir, adding a wrapper
	  script to invoke those.

20221210
	+ add minimal -h/-V getopt logic to the remaining test-programs.
	+ free new_pair() data in delscreen (report by "magiblot").
	+ add clarification of the scope of dynamic variables in terminfo(5).
	+ remove a stray '/' from description of %g in terminfo(5).

20221203
	+ add -h usage and -V version options to the test-programs which use
	  getopt.
	+ use "command -v" rather than "type" in Ada95/gen/Makefile.in to fix
	  a portability issue (patch by Nicolas Boulenguez).
	+ update ncurses-howto, more documentation fixes along with corrections
	  to example programs.

20221126
	+ fix an error in pathname of explain.txt (cf: 20200201).
	+ fix an error in "@" command in test/ncurses.c F-menu (cf: 20190121).
	+ improve formatting of ncurses-intro.html and hackguide.html
	+ improve man/curs_clear.3x links to other pages

20221119
	+ use static libraries for AdaCurses test-package for Mageia, since no
	  gprbuild package is available.
	+ updated test packages for Debian.

20221112
	+ build-fixes for AdaCurses RPM test-package.

20221105
	+ regenerate configure scripts with autoconf 2.52.20221009
	+ modify "--with-manpage-format" to support bzip2 and xz compression
	  (prompted by discussion with Sam James).
	+ modify make-tar.sh scripts to make timestamps more predictable.

20221029
	+ improve curs_slk.3x discussion of extensions and portability (report
	  by Bill Gray).

20221023
	+ change man_db.renames to template, to handle ncurses*-config script
	  with the extra-suffix configure option.

20221015
	+ fix another memory-leak in tic.
	+ update install-sh script from autoconf, to fix install problem for
	  Ada95 with Arch; as noted in
	  https://lists.gnu.org/archive/html/automake/2018-09/msg00005.html
	  there are unaddressed issues.
	+ update CF_XOPEN_SOURCE, adding GNU libc suffixes for abi64, abin32,
	  x32 (report by Sven Joachim):
	+ correct ifdef's for _nc_set_read_thread() (patch by Mikhail Korolev,
	  cf: 20220813).

20221008
	+ correct a switch-statement case in configure script to allow for test
	  builds with ABI=7.
	+ modify misc/gen-pkgconfig.in to allow for the case where the library
	  directory does not yet exist, since this is processed before doing an
	  install (report by Michal Liszcz).

20221001
	+ modify configure/scripts to work around interference by GNU grep 3.8
	  (report by Sam James).
	+ update CF_XOPEN_SOURCE, adding variants "gnueabi" and "gnueabihf" to
	  get _DEFAULT_SOURCE special case (report by Adam Sampson)

20220924
	+ modify configure macro CF_BUILD_CC to check if the build-compiler
	  works, rather than that it is different from the cross-compiler, e.g.,
	  to accommodate a compiler which can be used for either purpose with
	  different flags (report by Mikhail Korolev).
	+ fix another memory-leak in tic.
	+ correct change for cppcheck in menu library (report/analysis by
	  "tuxway", cf: 20220903).
	+ update config.guess, config.sub

20220917
	+ reduce memory-leak in tic by separating allocations for struct entry
	  from TERMTYPE2 (cf: 20220430).
	+ improve interaction between tic -v option and NCURSES_TRACE, by
	  processing the latter only when -v option does not set _nc_tracing.
	+ modify curses_trace() to show the trace-mask as symbols, e.g.,
	  TRACE_ORDINARY, DEBUG_LEVEL(3).

20220910
	+ amend verbose-option change to make this affect level 3, e.g., using
	  "tic -cv3 terminfo".
	+ work around musl's nonstandard use of feature test macros by adding
	  a definition for NCURSES_WIDECHAR to the generated ".pc" and *-config
	  files (report by Sam James).

20220903
	+ modify verbose-option of infocmp, tic, toe to enable debug-tracing
	  if that is configured.

20220827
	+ modify configure scripts to use overlooked cases for LD and
	  PKG_CONFIG variables (report by Alan Webb, Gentoo #866398).
	+ modify nsterm to use xterm+alt1049 (report by Paul Handly) -TD
	+ modify putty to use xterm+alt1049 -TD

20220820
	+ fix some cppcheck warnings, mostly style, in ncurses and c++
	  libraries and progs directory.
	+ add curses_trace to ifdef's for START_TRACE in test/test.priv.h
	+ update config.guess

20220813
	+ modify delscreen to more effectively delete all windows on the given
	  screen.
	+ amend portability note for delwin in manual page.
	+ adapt test/test_delwin.c from example by Bill Gray.
	+ account for prescreen data if freeing leaks in pthread-configuration
	+ split-out _nc_set_read_thread(), to reduce compiler warnings about
	  pthread_self(), which may/may not be a weak symbol.
	+ improve pthread-configuration for test/worm.c

20220806
	+ amend end_of_stream() to allow for input files without a final
	  newline.
	+ check for non-textfiles to tic.

20220729
	+ fixes to build with dietlibc:
	  + add configure check for fpathconf (report by Georg Lehner).
	  + add configure check for math sine/cosine, needed in test/tclock,
	    and eliminate pow() from test/hanoi (report by Georg Lehner).
	  + use wcsnlen as an alternative to wmemchr if it is not found
	    (adapted from patch by Georg Lehner).
	+ trim out some unwanted linker options from ncurses*config and .pc
	  files seen in Fedora 36+.

20220724
	+ add portability notes for delscreen and delwin in manual.
	+ improve pthread-configuration for test/worm.c, test/rain.c
	+ improve pointer/limit checks associated with deleting a screen
	  (Debian #1015756).

20220716
	+ build-fix for test_mouse.c, for non-standard cfmakeraw.
	+ improve shell-scripts with shellcheck
	+ fix typo in run_tic.in (report/patch by Jan Starke).

20220709
	+ lock the prescreen data consistently in newterm, etc., for the
	  pthreads configuration (report by Tom de Vries).

20220703
	+ add consistency check in tic for u6/u7/u8/u9 and NQ capabilities.
	+ use NQ to flag entries where the terminal does not support query and
	  response -TD
	+ use ansi+enq and decid+cpr in cases where the terminal probably
	  supported the u6-u9 extension -TD
	+ add/use apollo+vt132, xterm+alt47 -TD

20220625
	+ improve man/curs_bkgd.3x, explaining that bkgdset can affect results
	  for bkgd (report by Anton Vidovic).
	+ correct dsl in dec+sl (report by Rajeev Pillai) -TD
	+ add/use ansi+cpr, decid+cpr -TD

20220618
	+ add a null-pointer check for term_names field in copy_termtype(),
	  needed for MinGW port (report by Peiyuan Song, cf: 20220521).
	+ revise kon/kon2/jfbterm to undo "linux2.6" change to
	  smacs/rmacs/enacs (Debian #1012800) -TD
	+ amended note for att610+cvis0, as per documentation for att610,
	  att620, att730 -TD

20220612
	+ modify waddch_literal() to allow for double-width base character when
	  merging a combining character (report by Gavin Troy).
	+ improve _tracecchar_t2() formatting of base+combining character.

20220604
	+ add note on portable memory-leak checking in man/curs_memleaks.3x
	+ remove u6-u9 from teken-2018 -TD
	+ set "xterm-new" to "xterm-p370", add "xterm-p371" -TD

20220529
	+ expanded notes for teken/syscons -TD
	+ fix overlooked copying of extended string-heap in copy_termtype
	  (cf: 20220430).
	+ update config.guess

20220521
	+ improve memory-leak checking in several test-programs.
	+ set trailing null on string passed from winsnstr() to wins_nwstr().
	+ modify del_curterm() to fix memory-leak introduced by change to
	  copy_termtype().

20220514
	+ further improvements to test/test_mouse.c; compare with ncurses test
	  program menu A/a.

20220507
	+ add test/test_mouse.c (patch by Leonid S Usov).
	+ add a few debug-traces for tic, fix a couple of memory-leaks.

20220501
	+ build-fix for debug-traces (report/patch by Chris Clayton).

20220430
	+ modify samples for xterm mouse 1002/1003 modes to use 1006 mode, and
	  also provide for focus in/out responses -TD
	+ modify default case in handle_wheel() to always report button-release
	  events, e.g., for xterm mouse mode 1003 (patch by Leonid S Usov).
	+ improve valid_entryname() to disallow characters used in terminfo
	  syntax: '#', '=', '|', '\'.
	+ alter copy_termtype() to allocate new str_table and ext_str_table
	  data rather than relying upon its callers.
	+ use calloc in _nc_init_entry() when allocating stringbuf, to ensure
	  it is initialized.
	+ add library-level TYPE_CALLOC for consistency with TYPE_MALLOC.
	+ add some debug-traces for tic/infocmp.

20220423
	+ in-progress work on invalid_merge(), disable it (cf: 20220402).
	+ fix memory leak in _nc_tic_dir() when called from _nc_set_writedir().
	+ fix memory leak in tic when "-c" option is used.

20220416
	+ add a limit-check to guard against corrupt terminfo data
	  (report/testcase by NCNIPC of China).
	+ add check/warning in configure script if option --with-xterm-kbs is
	  missing or inconsistent (Arch #74379).
	+ add setlocale call to several test-programs.
	+ allow extended-color number in opts parameter of wattr_on.

20220409
	+ add test/test_unget_wch.c

20220402
	+ amend extended_captype(), returning CANCEL if a string is explicitly
	  cancelled.
	+ make description-fields distinct -TD

20220326
	+ update teken -TD
	+ add teken-16color, teken-vt and teken-sc -TD
	+ add a few missing details for vte-2018 (report by Robert Lange) -TD

20220319
	+ add xgterm -TD
	+ correct setal in mintty/tmux entries, add to vte-2018 (report by
	  Robert Lange)
	+ add blink to vte-2018 (report by Robert Lange)
	+ improve tic warning about XT versus redundant tsl, etc.

20220312
	+ add xterm+acs building-block -TD
	+ add xterm-p370, for use in older terminals -TD
	+ add dec+sl to xterm-new, per xterm patch #371 -TD
	+ add mosh and mosh-256color -TD

20220305
	+ replace obsolescent "-gnatg" option with "-gnatwa" and "-gnatyg", to
	  work around build problems with gnat 12.
	+ update external links in Ada95.html
	+ trim unused return-value from canonical_name().

20220226
	+ fix issues found with coverity:
	  + rewrite canonical_name() function of infocmp to ensure buffer size
	  + corrected use of original tty-modes in tput init/reset subcommands
	  + modify tabs program to limit tab-stop values to max-columns
	  + add limit-checks for palette rgb values in test/ncurses.c
	+ add a few null-pointer checks to help with static-analysis.
	+ enforce limit on number of soft-keys used in c++ binding.
	+ adjust a buffer-limit in write_entry.c to quiet a bogus warning from
	  gcc 12.0.1

20220219
	+ expanded description in man/resizeterm.3x
	+ additional workaround for ImageMagick in test/picsmap.c

20220212
	+ improve font-formatting in other manpages, for consistency.
	+ correct/improve font-formatting in curs_wgetch.3x (patch by Benno
	  Schulenberg).

20220205
	+ workaround in test/picsmap.c for use of floating point for rgb values
	  by ImageMagick 6.9.11, which appears to use the wrong upper limit.
	+ improve use of "trap" in shell scripts, using "fixup-trap".

20220129
	+ minor updates for test-packages
	+ improve handling of --with-pkg-config-libdir option, allowing for the
	  case where either $PKG_CONFIG_LIBDIR or the option value has a
	  colon-separated list of directories (report by Rudi Heitbaum,
	  cf: 20211113).
	+ update kitty -TD

20220122
	+ add ABI 7 defaults to configure script.
	+ add warning in configure script if file specified for "--with-caps"
	  does not exist.
	+ use fix for CF_FIX_WARNINGS from cdk-perl, ignoring error-exit on
	  format-warnings.
	+ improve readability of long parameterized expressions with the
	  infocmp "-f" option by allowing split before a "%p" marker.

20220115
	+ improve checks for valid mouse events when an intermediate mouse
	  state is not part of the mousemask specified by the caller (report by
	  Anton Vidovic, cf: 20111022).
	+ use newer version 1.36 of gnathtml for generating Ada html files.

20220101
	+ add section on releasing memory to curs_termcap.3x and
	  curs_terminfo.3x manpages.

20211225
	+ improve markup, e.g., for external manpage links in the manpages
	  (prompted by report by Helge Kreutzmann).

20211219
	+ install ncurses-examples programs in libexecdir, adding a wrapper
	  script to invoke those.
	+ add help-screen and screen-dump to test/combine.c

20211211
	+ add test/combine.c, to demo/test combining characters.

20211204
	+ improve configure check for getttynam (report by Werner Fink).

20211127
	+ fix errata in description fields (report by Eric Lindblad) -TD
	+ add x10term+sl, aixterm+sl, ncr260vp+sl, ncr260vp+vt, wyse+sl -TD

20211120
	+ add dim, ecma+strikeout to st-0.6 -TD
	+ deallocate the tparm cache when del_curterm is called for the last
	  allocated TERMINAL structure (report/testcase by Bram Moolenaar,
	  cf: 20200531).
	+ modify test-package to more closely conform to Debian multi-arch.
	+ if the --with-pkg-config-libdir option is not given, use
	  ${libdir}/pkgconfig as a default (prompted by discussion with Ross
	  Burton).

20211115
	+ fix memory-leak in delwin for pads (report by Werner Fink, OpenSUSE
	  #1192668, cf:  20211106),

20211113
	+ minor clarification to clear.1 (Debian #999437).
	+ add xterm+sl-alt, use that in foot+base (report by Jonas Grosse
	  Sundrup) -TD
	+ improve search-path check for pkg-config, for Debian testing which
	  installs pkg-config with architecture-prefixes.

20211106
	+ improve check in misc/Makefile.in for empty $PKG_CONFIG_LIBDIR
	+ modify wnoutrefresh to call pnoutrefresh if its parameter is a pad,
	  rather than treating it as an error, and modify new_panel to permit
	  its window-parameter to be a pad (report by Giorgos Xou).
	+ fix a memory-leak in del_curterm (prompted by discussion with Bram
	  Moolenaar, cf: 20210821).

20211030
	+ simplify some references to WINDOWS._flags using macros.
	+ add a "check" rule in Ada95 makefile, to help with test-packages.
	+ build-fix for cross-compiling to MingW, conditionally add -lssp

20211026
	+ corrected regex needed for older pkg-config used in Solaris 10.
	+ amend configure option's auto-search to account for systems where
	  none of the directories known to pkg-config exist, adapted from
	  mailing-list comment (report by Milan P. Stanic).

20211021 6.3 release for upload to ftp.gnu.org
	+ update release notes
	+ add "ncu2openbsd" script, to illustrate how to update an OpenBSD
	  system to use a current ncurses release.

20211018
	+ check for screen size-change in scr_init() and scr_restore(), in case
	  a screen dump does not match the current screen dimensions (report by
	  Frank Tkalcevic).

20211017
	+ amend change for pkg-config to account for "none" being returned in
	  the libdir-path result rather than "no" (report by Gabriele Balducci).

20211016
	+ build-fix for pmake with libtool.
	+ improve make-tar.sh scripts, adding COPYING to tar file, and clean up
	  shellcheck warnings.
	+ add link for "reset6" manpage in test-package ncurses6-doc
	+ revise configure option --with-pkg-config-libdir, using the actual
	  search path from pkg-config or pkgconf using the output from --debug
	  (report by Pascal Pignard).
	+ freeze ABI in ".map" files.

20211009
	+ implement "+m" option in tabs program.
	+ fill in some details for infoton -TD
	+ fix spelling/consistency in several descriptions -TD
	+ use vt420+lrmm in vt420 -TD
	+ modify save_tty_settings() to avoid opening /dev/tty for cases other
	  than reset/init, e.g., for clear.
	+ modify output of "toe -as" to show first description found rather
	  than the last.
	+ improve tic checks for number of parameters of smglp, smgrp, smgtp,
	  and smgbp (cf: 20020525).
	+ correct off-by-one comparison in last_char(), which did not allow
	  special case of ":" in a terminfo description field (cf: 20120407).
	+ remove check in tic that assumes that none or both parameterized and
	  non-parameterized margin-setting capabilities are present
	  (cf: 20101002).

20211002
	+ use return-value from vsnprintf to reallocate as needed to allow for
	  buffers larger than the screen size (report by "_RuRo_").
	+ modify tset "-q" option to refrain from modifying terminal modes, to
	  match the documentation.
	+ add section on margins to terminfo.5, adapted from X/Open Curses.
	+ make tput/tset warning messages consistently using alias names when
	  those are used, rather than the underlying program's name.
	+ improve tput usage message for aliases such as clear, by eliminating
	  tput-specific portions.
	+ add a check in toe to ensure that a "termcap file" is text rather
	  than binary.
	+ further build-fixes for OpenBSD 6.9, whose header files differ from
	  the other BSDs.

20210925
	+ add kbeg to xterm+keypad to accommodate termcap applications -TD
	+ add smglp and smgrp to vt420+lrmm, to provide useful data for the
	  "tabs" +m option -TD
	+ build-fix for gcc 3.4.3 with Solaris10, which does not allow forward
	  reference of anonymous struct typedef.
	+ modify tput to allow multiple commands per line.
	+ minor fixes for tset manpage.

20210911
	+ adjust ifdef in test_opaque.c to fix build with ncurses 5.7
	+ add testing note for xterm-{hp|sco|sun} -TD
	+ corrected description for ansi.sys-old -TD
	+ add xterm+nopcfkeys, to fill in keys for xterm-hp, xterm-sun -TD
	+ use hp+arrows in a few places -TD
	+ use hp+pfk-cr in a few places -TD

20210905
	+ correct logic in filtering of redefinitions (report by Sven Joachim,
	  cf: 20210828).

20210904
	+ modify linux3.0 entry to reflect default mapping of shift-tab by
	  kbd 1.14 (report by Jan Engelhardt) -TD
	+ add historical note to tput, curses-terminfo and curses-color
	  manpages based on source-code for SVr2, SVr3 and SVr4.
[--snip--]
