ncurses-6.6

[Bruce Dubbs]

New minor version.

Changes are at ​https://invisible-mirror.net/ncurses/announce.html#h2-release-notes

URL=​https://invisible-mirror.net/archives/ncurses/ncurses-6.6.tar.gz

[Bruce Dubbs]

Changes for version 6.6

20251230 6.6 release for upload to ftp.gnu.org

• update announcement
• corrected an ifdef needed for mouse support in MinGW/Windows
• eliminate remaining duplicate code between MinGW/Windows drivers

20251227

• make win32_curses.h obsolete in favor of nc_win32.h
• modify MinGW32 configuration to account for its use of Windows-style pathnames in filesystem checks.
• replace --enable-exp-win32 option with --enable-named-pipes

20251220

• in-progress work to merge MinGW/Windows port.
  • eliminate EXP_WIN32_DRIVER with USE_NAMED_PIPES
  • change MS_TERMINAL to DEFAULT_TERM_VAR

20251213

• in-progress work to merge MinGW/Windows port.
• add a null-pointer check in tic -c option.
• add a limit-check in infocmp -i option

20251206

• in-progress work to merge MinGW/Windows port.

20251129

• in-progress work to merge MinGW/Windows port.

20251123

• revert change using NCURSES_SBOOL in tic.h which interfered with sign-extension in tigetflag.

20251122

• in-progress work to merge MinGW/Windows port.
• correct expression for TINFO_LIB variable in misc/ncurses-config.in

20251115

• check for special case of wcrtomb() converting a single byte code to a different single byte code, which glibc does for code 160 in the KOI8-R encoding
• improve formatting/style of manpages
• amend recent changes to mouse handling to avoid a case which caused a loop in wgetch until additional input is provided

20251101

• adjust generated terminfo.5 to omit tbl "x" column modifier if that is unsupported, i.e., with old nroff/tbl
• in-progress work to merge MinGW/Windows port.

20251025

• amend locale-portability fix in tty_update.c
• add testing utility report_ctype
• update configure macros, improving check for $host_os
• correct a recent change to curs_termino.3x, along with formatting fixes for manpages.
• corrected note about box() in curs_border.3x

20251018

• add check for build-time utilities, in case cross-compiling is setup with an invalid $BUILD_CC (prompted by discussion with Stas Sergeev).
• modify configure-script and makefiles to make it easier to override the "--with-install-prefix" default with environment variable

20251010

• fix stray "\" in curs_extend.3x, regen html manpages.
• regen html manpages with man2html 1.42, fixing a few cases where headers were not linked

20251004

• improve formatting/style of manpages
• in-progress work to merge MinGW/Windows port.
• improve configure check for "install".

20250927

• in-progress work to merge MinGW/Windows port.

20250920

• in-progress work to merge MinGW/Windows port.
• add configure check for <sys/fsuid.h>, build-fix for flatpacks
• update config.guess, config.sub

20250913

• update ncurses-howto.
• modify MKfallback.sh to eliminate TERMINFO environment variable.
• improve checks in run_tic.sh script, change some variable names to reduce packager confusion
• disallow configure options which apply only to multiuser systems, to improve ports to single-user systems such as Haiku
• update ncurses/wcwidth.c, for MinGW ports, from xterm.
• correct _nc_to_char() for the case when wctob() is not found by configure script

• modify handle_wheel case 2 to ignore the event as in case 1 for mouse version 1, since that corresponds to a button 6 or 7 event which is not supported with ABI 6.
• use separate read/write pointers in the mouse event queue to work with too-close events for the click-detection to work reliably, and further improve that in case mouseinterval(0) is used to suppress click-detection.

20250830

• in-progress work to merge MinGW/Windows port.
• build-fix for experimental Windows configuration
• improve pattern used for configure --with-xterm-kbs option.

20250823

• improve style of MKterminfo.sh script
• improve formatting/style of manpages
• remove redundant definition of ConsoleInfo.
• change scope of TTY, GET_TTY and SET_TTY to ncurses-internals

20250816

• remove redundant reference to compiler in libtool configuration of mk-1st.awk
• build-fixes for --enable-exp-win32 configuration
• improve formatting/style of manpages

20250809

• add configure check for Win32 named pipes feature, using that to make nc_mingw.h obsolete in favor of nc_win32.h
• amend limit used in alloc_pair, by applying an adjustment for default colors only when the maximum number of color pairs is greater than the maximum number of colors

20250802

• fixes for reading Unicode characters in MinGW/Windows port

20250726

• modify configure script cases for $host_os, to accommodate 64-bit big-endian POWER linux with glibc
• add warning to configure script to address conflict between the --enable-lp64 option and the options for overriding the types used for chtype and mmask_t.

20250720

• further improve readability of header-files
• add a consistency-check for termio(s)/tty headers, to help with cross-compiles
• remove some unused configure-macros
• add xterm+keypad to pccon+base -TD
• trim trailing blanks from a few files

20250712

• improve readability of term.h
• modify recursive make rules to avoid interference with GNU make's "-j" option

20250705

• when installing the terminfo database, check if symbolic links are supported before attemping to link lib/terminfo from share/terminfo
• modify configure check for MAKEFLAGS/MFLAGS to ignore existing value of these environment variables
• reserve -c/-l options in test/*.c for command/logging like vttest.
• add options to test/worm.c for benchmarking (Nibby Nebbulous)
• improve formatting/style of manpages
• improve readability of header-files

20250628

• fix a few compiler-warnings.
• simplify include for wchar.h in Windows port by removing the platform ifdef's
• regen Ada95/configure

20250621

• revise loop in wins_nwstr, to ensure that non-spacing characters are combined with the base spacing character
• fixes for port using clang-cl or cl MSVC
• improve test-packages:
  • convert debian*/copyright to DEP-5 format.
  • modify ".spec" test-files to work around timestamp-clamping in recent Fedora releases.

20250614

• reduce lintian warnings for test-packages.
• clean up some shellcheck warnings
• improve test/configure checks for X libraries, reducing duplicates
• fix some typos/errata in license text, to help with scripted checks

20250531

• improve logic in misc/run_tic.in for constructing symbolic link when $DESTDIR is set.

20250524

• correct option-name used in configure script, which resulted in size change for cchar_t (cf: 20250517).

20250517

• initial changes for some ABI 7 features:
  • disable wgetch-events
  • add feature for extending mouse-buttons
  • add feature for extending direct-color support
• use bracketed+paste in nsterm, rlogin-color, screen, terminology -TD

20250510

• add rv/xr codes for domterm, mintty, mlterm -TD
• add xr code for putty -TD
• update teraterm to 5.0 -TD
• add rlogin-color -TD

20250503

• update/correct some of the rv/xr strings, checked with tack -TD
• use ansi+rca in sclp -TD
• use vt220+pcedit in sclp (Werner Fink)
• move some building blocks from illumos to sun-color, based on illumos source-history -TD
• improve use-clauses: ansi+cup, ansi+idl1, ansi+rca, ansi+rca2, ansi-sgrso, ansi+sgrul -TD
• add ecma+standout, ecma+underline -TD
• add rv code for alacritty -TD
• add rv/xr codes for contour, ghostty, iterm2, kitty, konsole, vscode, vte, wezterm -TD

20250426

• expand note on extensions in curs_addch.3x
• add illumos, sun-16color, sun-256color, sun-direct -TD
• add wyse+cvis -TD

20250419

• add note on scrolling and lower-right corner to waddch and wadd_wch manual pages.

20250412

• add pangoterm -TD
• add kf1 to kf5 to sclp
• add vt100+pf1-pf4 -TD

20250405

• improve formatting/style of manpages
• improve infocmp -E/-e fallback feature
  • prefix names with "ti_" if they begin with a digit, e.g., 9term
  • escape backslashes and double-quotes in description fields
• modify infocmp -E/-e fallback feature to reduce stricter compiler warnings for the extended capability data.
• add sclp -TD
• add op to vt525 -TD
• update contour -TD

20250329

• add XM/xm to ms-terminal, to enable mouse with experimental Windows driver -TD
• add -x option to infocmp in MKfallback.sh
• improve experimental Windows driver by restoring the scroll buffer and console mode, e.g., when reset_prog_mode or endwin is called
• add a buffer-limit check in postprocess_termcap

20250322

• add a null pointer check in mouse-initialization, for the experimental Windows driver
• improve makefile dependency in Ada95/src
• add note in user_caps.5 addressing a quibble about dates.

20250315

• improve formatting/style of manpages

20250308

• remove test in wgetch which applied notimeout to the initial read of a character
• improve formatting/style of manpages
• fix a few compiler-warnings in MinGW port.

20250301

• add color to vt525 (Branden Robinson)
• add vt520-w and vt525-w (Branden Robinson)
• improve formatting/style of manpages
• improve configurability of alloca() as used in Windows ports.
• fix some typos in manpages.
• modify configure script checks for stdbool.h to fix build with older gcc version.

20250222

• modify treatment of "n" parameter for waddnstr, waddnwstr, and wins_nwstr to return OK when "n" is zero, for consistency with other implementations
• formatting improvements for terminfo.5

20250216

• add limit-checks in alloc_entry.c and alloc_ttype.c to avoid indexing errors when using infocmp to compare all capabilities when processing a malformed terminfo binary which has a valid header (testcase by "Ekkosun").

20250215

• add gzip option for suppressing filename/timestamp information to an overlooked case (cf: 20240330).
• correct spelling errors found with codespell.
• fix some typos in manpages
• amend change to lib_set_term.c to work with thread configuration

20250208

• change etip.h.in to include either/both of <new> and <exception>, needed for another old BSD.
• update st
• add note for ghostty 1.1.0 -TD
• fix a few issues found with coverity.

20250201

• add <new> to the possible headers declaring the C++ std::bad_alloc
• modify check for stdbool.h to be more conservative in case the headers are used with a compiler other than that which was used to configure
• improve MKlib_gen.sh handling of "bool" type, for building link_test
• improve formatting/style of manpages

20250125

• improve error-handling in c++ binding
• strict compiler-warning fixes for upcoming gcc15

20250118

• improve pattern used for configure --with-xterm-kbs option
• update configure macros, from work on cdk and dialog.
• change a parameter name in curs_sp_funcs.3x, for consistency
• improve formatting/style of manpages
• change winwstr() to a generated function, using the macro definition, moving its handling of negative length parameter into winnwstr().
• correct actual-function name in a few trace calls.

20250111

• add check for infinite loop in tic's use-resolution.
• increase limit on use-clauses from 32 to 40, warn but allow entries which exceed the old limit.
• add some null-pointer checks after mallocs in test-programs.

20250104

• modify tput to warn about capabilities which expect parameters where none are given; also repair the feature where multiple capabilities can be handled on a single line.
• cleanup use-clauses -TD
• add linux+lockeys, xterm+r5+lockeys, xterm+r5+fkeys -TD
• add vt220+ufkeys, vt220+sfkeys
• revert man/manlinks.sed change, which loses aliases (cf: 20241228).
• modify MKlib_gen.c to allow for Solaris's definition of NULL as 0L

20241228

• correct conditional-compile for a case when the C compiler does not have a bool type.
• add ghostty -TD
• add comments to generated term.h to hint the configure options used
• use same subdir-convention for term.h, in configure script
• improve formatting/style of manpages

20241221

• modify ncurses/tinfo/MKfallback.sh to work with MacOS sed, which lacks BSD-style \< and \>
• trim padding from sgr expression used in trim_sgr0, to avoid copying the padding into the resulting sgr0
• strict compiler-warning fixes for upcoming gcc15

20241214

• avoid redefining bool in curses.h if the platform already supports that type (cf: 20241123).
• move include <curses.h> from etip.h.in to cursesw.h, to work around breakage in Apple's port of ncurses.
• strict compiler-warning fixes for upcoming gcc15

20241207

• strict compiler-warning fixes for upcoming gcc15

20241130

• improve configure check for lint program.
• adjust options in test-programs to allow for consistent use of -c/-l for command/logging.
• modify win_driver.c for MinGW to handle shift-tab and control-tab as back-tab

20241123

• remove dependency on stdbool.h from configure script check for type of bool when C-+ binding is omitted
• compiler-warning fixes

20241109

• work around musl header ifdef's
• improve error-reporting in write_entry.c
• remove unused #include from DJGPP configuration
• workaround/fix issues from clang-analyze

20241102

• remove djgpp-specific initialization to binary mode
• add extended-keys for djgpp 2.05 -TD

20241026

• update ms-terminal -TD
• add ms-terminal-direct -TD
• correct dimensions in test/popup_msg.c, fixing an overrun

20241019

• fixes for compiler warnings/cppcheck.
• build-fixes for DJGPP configuration

20241006

• fixes for compiler warnings/cppcheck.
• use xterm+alt+title in wezterm -TD

20240928

• improve error-message from infocmp when a terminal entry cannot be opened
• improve filtering of -L options in misc/gen-pkgconfig.in and in misc/ncurses-config.in
• add check in wresize() for out-of-range dimensions

20240922

• add a few null-pointer checks in ncurses
• improve test-driver in ncurses/link_test.c
• restore background character in manpages as described in X/Open Curses section 3.3.6, and add option "-c" to test programs to illustrate a non-blank character in the window background property.
• improve formatting/style of manpages
• modify ncurses*-config to add -I option in --cflag where needed for --disable-overwrite to match ".pc" files.
• disallow directories and block/character devices in safe-open.
• amend scr_restore() and scr_init() to remove the target window only after validating the source window which will replace the target

20240914

• modify _nc_flush() to also flush stderr to help the flash capability to work in bash
• omit -g and -fXXX flags from CFLAGS in misc/ncurses-config.in
• improve formatting/style of manpages
• improve examples in NCURSES-Programming-HOWTO.html
• update comments in terminfo.src -TD

20240831

• build-fix for a case in msys2 where gettimeofday() was available but the fallback was partly configured.
• separate the _NC_WINDOWS platform macro into _NC_WINDOWS_NATIVE, for MinGW and other native Win32 support, and _NC_WINDOWS, to make some Win32 features available under the Cygwin runtime, in this case the term-driver.
• make some minor adjustments to allow

./configure --enable-term-driver

to also work on Cygwin platforms such as Cygwin and MSYS2.

20240824

• modify infocmp and tabs to use actual name in usage and header.
• modify test/demo_keyok.c to accept ^{Q for quit, for consistency.}

20240817

• review/update foot for 1.18.1 -TD
• add a note about DomTerm 3.2.0 -TD
• add new glob-expressions variables to list in config.status script
• add --enable-install-prefix to modify behavior of $DESTDIR to merge or replace the value set by --prefix (adapted from suggestion by Eli Zaretskii).

20240810

• modify misc/Makefile.in and misc/run_tic.in so that $DESTDIR is set and used only in the makefile.
• modify CF_WITH_PKG_CONFIG_LIBDIR to allow for pkg-config using DOS/Windows pathname syntax
• improve glob-expressions in configure script
• remove unused Get_Menu_Screen() macro from menu.priv.h
• update config.guess, config.sub

20240727

• improve formatting/style of manpages
• fixes for compiler warnings/cppcheck.
• modify wattron/wattroff calls in form/m_post.c to call wattr_on and wattr_off to omit cast used in the former for X/Open compatibility
• modify wezterm, omitting its broken left/right margin feature

20240720

• improve formatting/style of manpages
• modify configure script and misc/Makefile to accept glob expressions that include Windows/DOS drive-letters
• fix misspelled ifdef and correct return-value of _nc_mingw_tcflush in win_driver.c

20240713

• modify misc/ncurses-config.in, improved match with pkg-config output.

20240706

• update configure script to use macro changes from dialog.
• modify CF_NCURSES_PTHREADS to avoid equating package and library names.

20240629

• build-fix for ncurses-examples with newer PDCurses, which no longer has stubs for unimplemented features.
• add help-popup for test_instr.c, test_inwstr.c
• modify checks in delwin to avoid checking if the window is a pad until first checking if it is still on the active window-list (cf: 20211115).
• improve -t option of test/gdc.c, allowing hours only, or hours and minutes only.

20240622

• improve test/gdc.c
• improve formatting/style of manpages
• adjust naming of mingw *-config scripts to match the pkg-config names
• widen pattern in pc/*-config scripts to disallow more linker options
• add --cflags-only-I and --cflags-only-other options to misc/ncurses-config.in
• revert change to CF_BUILD_CC macro

20240615

• improve formatting/style of manpages
• review/update modules files.
• improve install-rules in Ada95 makefiles
• improve formatting/style of manpages in test-directory.

20240608

• change winwstr to return wide character count instead of OK
• improve formatting/style of manpages
• rename testing dpkg's for ncurses6 to resolve a naming conflict with Debian's ncurses packages.

20240601

• improve formatting/style of manpages
• change Ada95/configure to use --with-screen option rather than --enable-widec, to provide more choices of underlying curses library

20240525

• build-fix for configure option --disable-ext-funcs
• improve formatting/style of manpages
• review/update iTerm2 for 3.5.0 -TD

20240519

• update Ada95/configure to match change for -DTRACE
• revert change to include/ncurses_defs, which caused build failure if tracing was not enabled

20240518

• improve formatting/style of manpages
• move makefile's -DTRACE into include/ncurses_cfg.h, to simplify use of CFLAGS/CPPFLAGS.
• improve check for clock_gettime(), from xterm.
• modify configure script to work around broken gnatgcc script found in gcc-13 builds.

20240511

• improve formatting/style of manpages
• limit value from ESCDELAY environment variable to 30 seconds, like other delay limits.
• limit values from LINES and COLUMNS environment variables to 512

20240504

• update ncurses/wcwidth.c, for MinGW ports, from xterm.
• trim obsolete comment about tack from INSTALL.

[Bruce Dubbs]

Fixed at commit 604c405ec6.