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-- Copyright 2018-2021,2022 Thomas E. Dickey                                 --
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-------------------------------------------------------------------------------
-- $Id: NEWS,v 1.3873 2022/10/29 23:13:05 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.

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.
	+ minor grammatical fixes for "it's" vs "its" (report by Nick Black).
	+ amend fix for --disable-root-environ (report by Arnav Singh).
	+ build-fix for compiling link_test
	+ drop symbols GCC_PRINTF and GCC_SCANF from curses.h.in, to simplify
	  use (Debian #993179).

20210828
	+ correct reversed check for --disable-root-environ (report/analysis
	  by Arnav Singh, cf: 20210626).
	+ apply gcc format attribute to prototypes which use a va_list
	  parameter rather than a "..." variable-length parameter list
	  (prompted by discussion in a tmux pull-request).
	+ modify configure scripts to filter out redefinitions of _XOPEN_SOURCE,
	  e.g., for NetBSD which generally supports 500, but 600 is needed for
	  ncursesw.
	+ improve documentation for tparm and static/dynamic variables.
	+ improve typography in terminfo.5 (patch by Branden Robinson).

20210821
	+ improve tparm implementation of %P and %g, more closely matching
	  SVr4 terminfo.
	+ move internals of TERMINAL structure to new header term.priv.h
	+ add "check" rule for ncurses/Makefile
	+ corrected tsl capability for terminator -TD
	+ add check in tic to report instances where tparm would detect an
	  error in an expression (cf: 20201010).
	+ correct a few places where SP->_pair_limit was used rather than
	  SP->_pair_alloc (cf: 20170812).
	+ fix missing "%d" for setaf/setab code 8-15 in xterm+direct16 (report
	  by Florian Weimer) -TD
	+ fix some documentation errata from OpenBSD changes.
	+ update config.sub

20210814
	+ add workaround for broken pcre2 package in Debian 10, from xterm #369.

20210807
	+ ignore "--dynamic-linker" option in generated pkg/config files,
	  adapted from "distr1" patch.
	+ add CF_SHARED_OPTS case for Haiku, from patch in haikuports.

20210731
	+ add extensions in xterm+tmux and ecma+strikeout to ms-terminal,
	  but cancel the non-working Cr and Ms capabilities -TD
	+ add foot and foot-direct -TD

20210724
	+ add workaround for Windows Terminal's problems with CR/LF mapping to
	  ms-terminal (patch by Juergen Pfeifer).
	+ review/update current Windows Terminal vs ms-terminal -TD

20210718
	+ correct typo in "vip" comments (report by Nick Black), reviewed this
	  against Glink manual -TD
	+ fill in some missing pieces for pccons, to make it comparable to the
	  vt220 entry -TD
	+ modify mk-1st.awk to account for extra-suffix configure option
	  (report by Juergen Pfeifer).
	+ change default for --disable-wattr-macros option to help packagers
	  who reuse wide ncursesw header file with non-wide ncurses library.
	+ build-fix for test/test_opaque.c, for configurations without opaque
	  curses structs.

20210710
	+ improve history section for tset manpage based on the 1BSD tarball,
	  which preceded BSD's SCCS checkins by more than three years.
	+ improve CF_XOPEN_CURSES macro used in test/configure (report by Urs
	  Jansen).
	+ further improvement of libtool configuration, adding a dependency of
	  the install.tic rule, etc., on the library in the build-tree.
	+ update config.sub

20210703
	+ amend libtool configuration to add dependency for install.tic, etc.,
	  in ncurses/Makefile on the lower-level libraries.
	+ modify configure script to support ".PHONY" make program feature.

20210626
	+ add configure option --disable-root-access, which tells ncurses to
	  disallow most file-opens by setuid processes.
	+ use default colors in pccon "op" -TD
	+ correct rmacs/smacs in aaa+dec, aaa+rv -TD
	+ add hpterm-color2 and hp98550-color (Martin Trusler)
	+ regenerate man-html documentation.

20210619
	+ improve configure-macro used for dependencies of --disable-leaks such
	  as --with-valgrind
	+ trim trailing blanks from files

20210612
	+ fixes for scan-build, valgrind build/testing.
	+ update config.guess

20210605
	+ add a summary of ncurses-specific preprocessor symbols to curses.h
	  (prompted by discussion with Peter Farley, Bill Gray).

20210522
	+ regenerate configure scripts with autoconf 2.52.20210509 to eliminate
	  an unnecessary warning in config.log (report by Miroslav Lichvar).
	+ add a note in manual page to explain ungetch vs unget_wch (prompted
	  by discussion with Peter Farley).
	+ add sp-funcs for erasewchar, killwchar.
	+ modify wgetnstr, wgetn_wstr to improve compatibility with SVr4 curses
	  in its treatment of interrupt and quit characters (prompted by
	  report/testcase by Bill Gray)
	+ update config.guess, config.sub

20210515
	+ improve manual pages for wgetnstr, newwin (prompted by
	  report/testcase by Bill Gray).

20210508
	+ modify tputs' error check to allow it to be used without first
	  calling tgetent or setupterm, noting that terminfo initialization
	  is required for supporting the terminfo delay feature (report by
	  Sebastiano Vigna).
	+ fix several warnings from clang --analyze
	+ add null-pointer check in comp_parse.c, when a "use=" clause refers
	  to a nonexisting terminal description (report/patch by Miroslav
	  Lichvar, cf: 20210227).

20210501
	+ add a special case in the configure script to work around one of the
	  build-time breakages reported for OpenBSD 6 here:
	     https://www.mail-archive.com/bugs@openbsd.org/msg13200.html
	  There is no workaround for the other issue, a broken linker spec.
	+ modify configure check for libtool to prevent accidental use of an
	  OpenBSD program which uses the same name.
	+ update config.guess, config.sub

20210424
	+ avoid using broken system macros for snprintf which interfere with
	  _nc_SLIMIT's conditionally adding a parameter when the string-hacks
	  configure option is enabled.
	+ add a "all::" rule before the new "check" rule in test/Makefile.in

20210418
	+ improve CF_LINK_FUNCS by ensuring that the source-file is closed
	  before linking to the target.
	+ add "check" rules for headers in c++, progs and test-directories.
	+ build-fix for termsort module when configured with termcap (reports
	  by Rajeev V Pillai, Rudi Heitbaum).

20210417
	+ extend --disable-pkg-ldflags option to also control whether $LDFLAGS
	  from the build is provided in -config and .pc files (Debian #986764).
	+ fix some cppcheck warnings, mostly style, in ncurses and c++
	  libraries and progs directory.
	+ fix off-by-one limit for tput's processing command-line arguments
	  (patch by Hadrien Lacour).

20210403
	+ fix some cppcheck warnings, mostly style, in ncurses library and
	  progs directory.
	+ improve description of BSD-style padding in curs_termcap.3x
	+ improved CF_C11_NORETURN macro, from byacc changes.
	+ fix "--enable-leak" in CF_DISABLE_LEAKS to allow turning
	  leak-checking off later in a set of options.
	+ relax modification-time comparison in CF_LINK_FUNCS to allow it to
	  accept link() function with NFS filesystems which change the mtime
	  on the link target, e.g., several BSD systems.
	+ call delay_output_sp to handle BSD-style padding when tputs_sp is
	  called, whether directly or internally, to ensure that the SCREEN
	  pointer is passed correctly (reports by Henric Jungheim, Juraj
	  Lutter).

20210327
	+ build-fixes for Solaris10 /bin/sh
	+ fix some cppcheck warnings, mostly style, in ncurses test-programs,
	  form and menu libraries.

20210323
	+ add configure option --enable-stdnoreturn, making the _Noreturn
	  keyword optional to ease transition (prompted by report by
	  Rajeev V Pillai).

20210320
	+ improve parameter-checking in tput by forcing it to analyze any
	  extended string capability, e.g., as used in the Cs and Ms
	  capabilities of the tmux description (report by Brad Town,
	  cf: 20200531).
	+ remove an incorrect free in the fallback (non-checking) version of
	  _nc_free_and_exit (report by Miroslav Lichvar).
	+ correct use-ordering in some xterm-direct flavors -TD
	+ add hterm, hterm-256color (Mike Frysinger)
	+ if the build-time compiler accepts c11's _Noreturn keyword, use that
	  rather than gcc's attribute.
	+ change configure-check for gcc's noreturn attribute to assume it is
	  a prefix rather than suffix, matching c11's _Noreturn convention.
	+ add "lint" rule to c++/Makefile, e.g., with cppcheck.

20210313
	+ improve configure CF_LD_SEARCHPATH macro used for ncurses*-config and
	  ".pc" files, from dialog changes.
	+ reduce dependency of math-library in test programs.
	+ minor fixes for test_tparm.c (cf: 20210306)
	+ mention "ncurses" prefix in curses_version() manpage (report by
	  Michal Bielinski).

20210306
	+ improved test/test_tparm.c, by limiting the tests to capabilities
	  that might have parameters or padding, and combined with tputs test.
	+ improve discussion of padding versus tparm and tputs in
	  man/curs_terminfo.3x
	+ update portability note for FreeBSD in man/tput.1

20210227
	+ modify tic/infocmp to eliminate unnecessary "\" to escape ":" in
	  terminfo format.
	+ add check in tic for duplicate "use=" clauses.

20210220
	+ improve tic warning when oc/op do not mention SGR 39/49 for xterm
	  compatible XT flag.
	+ revert change to lib_addch.c in waddch_literal() from 20210130, since
	  the followup fix in PutCharLR() actually corrects the problem while
	  this change causes too-early filling/wrapping (report by Johannes
	  Altmanninger).
	+ add/use vt220+pcedit and vt220+vtedit  -TD
	+ add scrt/securecrt and absolute -TD
	+ add nel to xterm-new, though supported since X11R5 -TD
	+ add/use xterm+nofkeys -TD
	+ move use of ecma+italics from xterm-basic to xterm+nofkeys -TD

20210213
	+ add test/back_ground.c, to exercise the wide-character background
	  functions.
	+ add a check in _nc_build_wch() in case the background character is a
	  wide-character, rather than a new part of a multibyte character.
	+ improve tracemunch's coverage of form/menu/panel libraries.
	+ improve tracemunch's checking/reporting the type for the first
	  parameter, e.g., "WINDOW*" rather than "#1".

20210206
	+ provide for wide-characters as background character in wbkgrnd
	  (report/testcase by Anton Vidovic)
	+ add name for Fedora's pcre2 to configure check for "--with-pcre2"
	  option, from xterm #363 -TD
	+ modify adjustment in PutCharLR to restore the cursor position before
	  writing to the lower-right corner, rather than decrementing the
	  cursor column, in case it was a double-width character (cf: 20210130).

20210130
	+ correct an off-by-one in comparison in waddch_literal() which caused
	  scrolling when a double-cell character would not fit at the lower
	  right corner of the screen (report by Benno Schulenberg).
	+ split-out att610+cvis, vt220+cvis, vt220+cvis8 -TD
	+ add vt220-base, for terminal emulators which generally have not
	  supported att610's blinking cursor control -TD
	+ use vt220+cvis in vt220, etc -TD
	+ use att610+cvis, xterm+tmux and ansi+enq in kitty -TD
	+ use vt220+cvis in st, terminology, termite since they ignore
	  blinking-cursor detail in att610+cvis -TD

20210123
	+ modify package/config scripts to provide an explicit -L option for
	  cases when the loader search path has other directories preceding
	  the one in which ncurses is installed (report by Yuri Victorovich).
	+ minor build-fixes in configure script and makefiles to work around
	  quirks of pmake.

20210116
	+ add comment for linux2.6 regarding CONFIG_CONSOLE_TRANSLATIONS
	  (report by Patrick McDermott) -TD
	+ make opts extension for getcchar work as documented for ncurses 6.1,
	  adding "-g" flag to test/demo_new_pair to illustrate.

20210109
	+ fix errata in man/ncurses.3x from recent updates.
	+ improve quoting/escaping in configure script, uses some features of
	  autoconf 2.52.20210105

20210102
	+ update man/curs_memleaks.3x, to include <term.h> which declares
	  exit_terminfo.
	+ clarify man/curs_terminfo.3x, to mention why the macro setterm is
	  defined in <curses.h>, and remove it from the list of prototypes
	  (prompted by patch by Graeme McCutcheon).
	+ amend man/curs_terminfo.3x, to note that <curses.h> is required
	  for certain functions, e.g., those using chtype or attr_t for
	  types, as well as mvcur (cf: 20201031).
	+ use parameter-names in prototypes in curs_sp_funcs.3x, for
	  consistency with other manpages.

20201227
	+ update terminology entry to 1.8.1 -TD
	+ fix some compiler-warnings which gcc8 reports incorrectly.

20201219
	+ suppress hyphenation in generated html for manpages, to address
	  regression in upgrade of groff 1.22.2 to 1.22.3.
	+ fix inconsistent sort-order in see-also sections of manpages (report
	  by Chris Bennett).

20201212
	+ improve manual pages for form field-types.

20201205
	+ amend build-fixes for gnat 10 to work with certain systems lacking
	  gprbuild (cf: 20200627).
	+ eliminate an additional strlen and wsclen.
	+ eliminate an unnecessary strlen in waddnstr() (suggested by Benjamin
	  Abendroth).
	+ modify inopts manpage, separating the items for nodelay and notimeout
	  (patch by Benno Schulenberg).
	+ correct mlterm3 kf1-kf4 (Debian #975322) -TD
	+ add flash to mlterm3 -TD

20201128
	+ add Smulx to alacritty (Christian Duerr).
	+ add rep to PuTTY -TD
	+ add putty+keypad -TD
	+ add another fflush(stdout) in _nc_flush() to handle time-delays in
	  the middle of strings such as flash when the application uses
	  low-level calls rather than curses (cf: 20161217).
	+ modify configure check for c89/c99 aliases of clang to use its
	  -std option instead, because some platforms, in particular macOS,
	  do not provide workable c89/c99 aliases.

20201121
	+ fix some compiler-warnings in experimental Windows-10 driver.
	+ add the definitions needed in recent configure-check for clang
	  (report by Steven Pitman).

20201114
	+ fix some compiler-warnings in experimental Windows-10 driver.
	+ modify a check for parameters in terminfo capabilities to handle the
	  special case where short extended capability strings were not
	  converted from terminfo to termcap format.
	+ modify CF_MIXEDCASE_FILENAMES macro, adding darwin as special case
	  when cross-compiling (report by Eli Rykoff).

20201107
	+ update kitty+common -TD
	+ add putty+screen and putty-screen (suggested by Alexandre Montaron).
	+ explain in ncurses.3x that functions in the tinfo library do not rely
	  upon wide-characters (prompted by discussion with Reuben Thomas).

20201031
	+ modify MKterm.h.in so that it is not necessary to include <curses.h>
	  before <term.h> (prompted by discussion with Reuben Thomas).
	+ review/improve synopsis for curs_sp_funcs.3x (prompted by discussion
	  with Reuben Thomas).
	+ improve format of output in tic's check_infotocap() function, to
	  ensure that the messages contain only printable text.
	+ modify configure-check for clang to verify that -Qunused-arguments
	  is supported.  IBM's xlclang does not support it (report by Steven
	  Pitman).

20201024
	+ provide workaround configure-check for bool when cross-compiling.
	+ fix a potential indexing error in _nc_parse_entry(), seen with
	  Herlim's test data using address-sanitizer.
	+ change a null-pointer check in set_curterm to a valid-string check,
	  needed in to tic's use-resolution when pad_char is cancelled
	  (report/testcase by Robert Sebastian Herlim)
	+ improve tic's -c option to validate the number and type of parameters
	  and compare against expected number/type before deciding which set of
	  parameter-lists to use in tparm calls (report/testcase by Robert
	  Sebastian Herlim).
	+ fix a link for tabs.1 manpage in announce.html.in (report by Nick
	  Black), as well as some fixes via linklint.

20201017
	+ improve manpage typography.
	+ improve discussion in curs_addch.3x of the use of unctrl to display
	  nonprintable characters.
	+ add a note in terminfo.5 explaining that no-parameter strings such
	  as sgr0 or cnorm should not be used with tparm.

20201010
	+ correct sgr in aaa+rv (report by Florian Weimer) -TD
	+ fix some sgr inconsistencies in d230c, ibm6153, ibm6154,
	  ncrvt100an -TD
	+ improve tic's check for errors detected in tparm (prompted by
	  discussion with Florian Weimer).
	+ set output-mode to binary in experimental Windows-10 driver (Juergen
	  Pfeifer).

20201003
	+ remove output-related checks for nl/nonl (report by Leon Winter).
	+ change tmux's kbs to ^? (report by Premysl Eric Janouch)
	+ simplify mlterm initialization with DECSTR -TD
	+ fix a typo in man/curs_terminfo.3 (Reuben Thomas).
	+ add tmux-direct (tmux #2370, Debian #895754)
	+ add user-defined capabilities from mintty to Caps-ncurses, for
	  checking consistency with tic.

20200926
	+ correct configure-check for gnurx library.
	+ regenerate llib-* files.
	+ modify tracemunch and the panel library to show readable traces for
	  panel- and user-pointers.

20200919
	+ update mlterm3 for 3.9.0 (report by Premysl Eric Janouch) -TD

20200918
	+ corrected condition for appending curses.events to the generated
	  curses.h (report by Sven Joachim, Debian #970545).

20200912
	+ add configure-check for systre/tre with mingw configuration, to get
	  the library-dependencies as seen in msys2 configuration for mingw64.
	+ build-fixes for the win32-driver configuration.
	+ use more defensive binary mode setting for Win32 (Juergen Pfeifer).

20200907
	+ fix regression in setupterm validating non-empty $TERM (report by
	  Soren Tempel).

20200906
	+ merge/adapt in-progress work by Juergen Pfeifer for new version of
	  win32-driver.
	+ correct description of vt330/vt340 (Ross Combs).

20200831
	+ build-fix for awk-scripts modified for win32-driver (report by Werner
	  Fink).

20200829
	+ remove a redundant NCURSES_EXPORT as a build-fix for "Maarten
	  Anonymous".
	+ merge/adapt in-progress work by Juergen Pfeifer for new version of
	  win32-driver.
	+ modify configure script, moving gcc -Werror options to EXTRA_CFLAGS
	  to avoid breaking configure-checks (adapted from ongoing work on
	  mawk and lynx).
	> errata for terminfo.src (report by Florian Weimer):
	+ correct icl6404 csr
	+ correct ti916 cup
	+ improve ndr9500

20200822
	+ improve version-number extraction in MKlib_gen.sh
	+ make the test-package for manpages installable by adjusting the
	  man_db.renames file.
	+ correct an off-by-one loop-limit in convert_strings function
	  (report by Yue Tai).
	+ add CF_SHARED_OPTS cases for HPE NonStop systems (Randall S Becker).
	+ modify CF_SHARED_OPTS case for NetBSD to use the same "-shared"
	  option for the non-rpath case as for the rpath case, to allow gcc to
	  provide suitable runtime initialization (report by Rajeev V Pillai).

20200817
	+ reduce build-warnings by excluding ncurses-internals from deprecation
	  warnings.
	+ mark wgetch-events feature as deprecated.
	+ add definition for $(LIBS) to ncurses/Makefile.in, to simplify builds
	  using the string-hacks option.
	+ prevent KEY_EVENT from appearing in curses.h unless the configure
	  option --enable-wgetch-events is used (report by Werner Fink).

20200816
	+ amend tic/infocmp check to allow for the respective tool's absence
	  (report by Steve Wills, cf: 20200808).
	+ improved some of the build-scripts with shellcheck
	+ filter out -MT/-MD/-MTd/-MDd options in script for Visual Studio C++
	  (discussion with "Maarten Anonymous").

20200808
	+ improve discussion of the system's tic utility when used as part
	  of cross-compiling (discussion with Keith Marshall).
	+ modify configuration checks for build-time tic/infocmp to use
	  AC_CHECK_TOOL. That can still be overridden by --with-tic-path and
	  --with-infocmp-path when fallbacks are used, but even if not using
	  fallbacks, the improved check may help with cross-compiling
	  (discussion with Keith Marshall).
	+ other build-fixes for Ada95 with MinGW.
	+ modify Ada95 source-generation utility to write to a file given as
	  parameter rather than to the standard output, allowing builds with
	  MinGW.

20200801
	+ remove remaining parts of checks for ISC Unix (cf: 20121006).
	+ add user32.lib to LDFLAGS for Visual Studio C++ configuration
	  (discussion with "Maarten Anonymous").
	+ modify MKkey_defs.sh to hide ncurses' definition of KEY_EVENTS to
	  reduce Visual Studio C++ redefinition warnings.
	+ improve/update checks for external functions in test/configure

20200725
	+ set LINK_TESTS in CF_SHARED_OPTS for msvc (patch by
	  "Maarten Anonymous")
	+ improved workaround for redefinition-warnings for KEY_EVENT.
	+ improve man/term.5 section on legacy storage format (report by
	  Florian Weimer).

20200718
	+ reduce redefinition-warnings for KEY_EVENT when building with Visual
	  Studio C++.
	+ define NCURSES_STATIC when compiling programs to link with static
	  libraries, to work with MinGW vs Visual Studio C++.
	> additional changes for building with Visual Studio C++ and msys2
	  (reports/patches by "Maarten Anonymous")
	+ modify c++/Makefile.in to set the current directory while compiling
	  the main program, so the linker can find related objects.
	+ several changes to allow the c++/demo program to compile/link.
	+ change an ifdef in test-directory, to use VC++ wide-character funcs.

20200711
	+ fix pound-sign mapping in acsc of linux2.6 entry (report by Ingo
	  Bruckl).
	+ additional changes for building with Visual Studio C++ and msys2
	  (reports/patches by "Maarten Anonymous")
	+ build-improvements for Windows 10 and MinGW (patch by Juergen
	  Pfeifer).
	+ fix a typo in curs_printw.3x (patch by William Pursell).
	+ fix two errors in infotocap which allowed indexing outside the
	  buffer (report/testcases by Zhang Gan).
	+ update length of strings in infocmp's usage function to restore a
	  trailing null on the longest string (report/testcase by Zhang Gen).

20200704
	+ modify version-check with Ada generics to use the same pattern as in
	  the check for supported gnat versions (report by Pascal Pignard).
	> additional changes for building with Visual Studio C++ and msys2
	  (patches by "Maarten Anonymous"):
	+ adjust headers/declarations to provide for "dllimport" vs "dllexport"
	  declarations when constructing DLLs, to worko with Visual Studio C++.

20200627
	+ build-fixes for gnat 10.1.1, whose gnatmake drops integration with
	  gprbuild.
	+ correct buffer-length in test/color_name.h

20200613
	+ update list of functions in ncurses.3x
	+ move dlclose() call from lib_mouse.c to delscreen() to avoid a case
	  in the former which could be called from SIGTSTP handler (Debian

        =======  SNIP  =======

  see source code for full file  

