Log message:
ncurses: replace patch (chunk) with configure flag

Log message:
ncurses: use rm -f

Log message:
ncurses: clean up patches

Remove cargo-cult packages, only keep the ones for renaming the
form/menu/panel libraries to gnu*.
Handle (removing) terminfo symlink in Makefile instead of as a patch.

No functional change intended.

Log message:
ncurses: remove obsolete patch

Fixed differently, says upstream.

Log message:
ncurses: update to 6.2.

20200212 6.2 release for upload to ftp.gnu.org
	+ update release notes
	+ minor build-fixes, mostly to test-package scripts

20200208
	+ modify check for sizeof(wchar_t) to ensure it gives useful result
	  when cross-compiling.
	+ drop assumption in configure script that Cygwin's linker is broken.
	+ define NCURSES_BROKEN_LINKER if the broken-linker feature is used,
	  to simplify configure-checks for ncurses-examples.

20200202
	+ reassert copyright on ncurses, per discussion in ncurses FAQ:
	  https://invisible-island.net/ncurses/ncurses.faq.html#relicensed

20200201
	+ modify comparison in make_hash.c to correct a special case in
	  collision handling for Caps-hpux11
	+ add testing utility report_hashing to check hash-tables used for
	  terminfo and termcap names.
	+ fix a missing prototype for _nc_free_and_exit().
	+ update a few comments about tack 1.07
	+ use an awk script to split too-long pathnames used in Ada95 sample
	  programs for explain.txt

20200118
	+ expanded description of XM in user_caps.5
	+ improve xm example for xterm+x11mouse, xterm+sm+1006 -TD
	+ add history section to curs_slk.3x and curs_terminfo.3x manpages.
	+ update alacritty entries for 0.4.0 (prompted by patch by
	  Christian Durr) -TD
	+ correct spelling errors found with codespell.
	+ fix for test/configure, from xterm #352.

20200111
	+ improve configure macros which check for the X11/Intrinsic.h header,
	  to accommodate recent MacOS changes.
	+ suppress gcc's -Winline warning; it has not been useful for some time
	+ update config.guess, config.sub

20200104
	+ modify a couple of macros in aclocal.m4 to allow autoconf 2.69 to
	  "work", to help illustrate discussion in
	  https://invisible-island.net/autoconf/my-autoconf.html
	+ fix some warnings from autoheader-252

20191228
	+ in gen-pkgconfig.in, move the RPATH_LIST and PRIVATE_LIBS assignments
	  past the various prefix/libdir assignments, to allow for using those
	  symbols, e.g., as done via CF_SHARED_OPTS.
	+ improve ncurses*-config and pc-files by filtering out linker-specs.
	+ modify test-package to more closely match Fedora's configuration
	  for PIE/PIC feature and debug-packages.

20191221
	+ correct pathname used in Ada95 sample programs for explain.txt, to
	  work with test-packages.
	+ improve tracemunch:
	  + keep track of TERMINAL* values
	  + if tracing was first turned on after initialization, attempt to
	    show distinct screen, window and terminal names anyway.
	+ ensure that GCC_NORETURN is defined in term.h, because the prototype
	  for exit_terminfo() uses it (report by Werner Fink).

20191214
	+ add exit_curses() and exit_terminfo() to replace internal symbols for
	  leak-checking.

20191207
	+ fix a few warnings for test-package builds
	+ add curses_trace(), to replace trace().

20191130
	+ add portability section to curs_getcchar manpage (prompted by
	  discussion with Nick Black).
	+ improve portability discussion of ACS characters in curs_addch
	  manpage.
	+ improve typography for double-quotes in manpages.

20191123
	+ fix typo for MinGW rpm test-package.
	+ workaround in rpm specs for NFS problems in Fedora 31.

20191116
	+ modify ncurses/Makefile.in to fix a case where Debian/testing changes
	  to the ld --as-needed configuration broke ncurses-examples test
	  packages.
	+ drop library-dependency on psapi for MinGW port, since win_driver.c
	  defines PSAPI_VERSION to 2, making it use GetProcessImageFileName
	  from kernel32.dll (prompted by patch by Simon Sobish, cf: 20140503).

20191109
	+ add warning-check in tic for terminals with parm_dch vs parm_ich.
	+ drop ich1 from rxvt-basic, Eterm and mlterm to improve compatibility
	  with old non-curses programs -TD
	+ reviewed st 0.8.2, updated some details -TD
	+ use ansi+rep several places -TD
	+ corrected tic's check for ich1 (report by Sebastian J. Bronner,
	  cf: 20020901).

20191102
	+ check parameter of set_escdelay, return ERR if negative.
	+ check parameter of set_tabsize, return ERR if not greater than zero
	  (report/patch by Anthony Sottile).
	+ revise CF_ADD_LIBS macro to prepend rather than append libraries.
	+ add "xterm-mono" to help packagers (report by Sven Joachim) -TD

20191026
	+ add a note in man/curs_add_wch.3x about Unicode terminology for the
	  line-drawing characters (report by Nick Black).
	+ improve comment in lib_tgoto.c regarding the use of \200 where a
	  \0 would be intended by the caller (report by "64 bit", cf: 20000923).
	+ modify linux-16color to accommodate Linux console driver change in
	  early 2018 (report by Dino Petrucci).

20191019
	+ modify make_hash to not require --disable-leaks, to simplify building
	  with address-sanitizer.
	+ modify tic to exit if it cannot remove a conflicting name, because
	  treating that as a partial success can cause an infinite loop in
	  use-resolution (report/testcase by Hongxu Chen, cf: 20111001).

20191015
	+ improve buffer-checks in captoinfo.c, for some cases when the
	  input string is shorter than expected.
	> fix two errata in tic (report/testcases by Hongxu Chen):
	+ check for missing character after backslash in write_it
	+ check for missing characters after "%>" when converting from termcap
	  syntax (cf: 980530).

20191012
	+ amend recent changes to ncurses*-config and pc-files to filter out
	  Debian linker-flags (report by Sven Joachim, cf: 20150516).
	+ clarify relationship between tic, infocmp and captoinfo in manpage.
	+ check for invalid hashcode in _nc_find_type_entry and
	  _nc_find_name_entry.
	> fix several errata in tic (reports/testcases by "zjuchenyuan"):
	+ check for invalid hashcode in _nc_find_entry.
	+ check for missing character after backslash in fmt_entry
	+ check for acsc with odd length in dump_entry in check for one-one
	  mapping (cf: 20060415);
	+ check length when converting from old AIX box_chars_1 capability,
	  overlooked in changes to eliminate strcpy (cf: 20001007).

20191005
	+ modify the ncurse*-config and pc-files to more closely match for the
	  -I and -l options.

20190928
	+ amend the ncurses*-config and pc-files to take into account the rpath
	  hack which differed between those files.
	+ improve -L option filtering in ncurses*-config
	+ improve recovery from error when reading command-character in
	  test/ncurses.c, showing the relevant error message and not exiting on
	  EINTR (cf: 20180922)

20190921
	+ add a note in resizeterm manpage about top-level windows which touch
	  the screen's borders.
	+ modify configure-checks for gnat to identify each of the tools path
	  and version.

20190914
	+ build-fixes for Ada95 configure-script and corresponding test package

20190907
	+ add --with-ada-libname option and modify Ada95 configuration to
	  allow renaming the "AdaCurses" library (prompted by proposed changes
	  by Pascal Pignard).
	+ modify configure script to distinguish gcc from icc and clang when
	  the --enable-warnings option is not used, to avoid unnecessary
	  warnings about unrecognized inline options (report by Sven Joachim).

20190831
	+ build-fixes for configuration using --program-suffix with Ada95,
	  noticed with MacOS but applicable to other platforms without
	  libpanelw, etc.

20190824
	+ fix some cppcheck warnings, mostly style, in ncurses test-programs.

20190817
	+ amend 20181208 changes for wbkgd() and wbkgrnd(), fixing a few
	  details where it still differed from SVr4.
	+ fix some cppcheck warnings, mostly style, in ncurses test-programs.

20190810
	+ fix a few more coverity warnings.

20190803
	+ improve loop limits in _nc_scroll_window() to handle a case where
	  the scrolled data is a pad which is taller than the window (patch
	  by Rob King).
	+ amend the change to screen, because tmux relies upon that entry
	  and does not support that feature (Debian #933572) -TD
	+ updated ms-terminal entry & notes -TD
	+ updated kitty entry & notes -TD
	+ updated alacritty+common entry & notes -TD
	+ use xterm+sl-twm for consistency -TD

20190728
	+ fix a few more coverity warnings.
	+ more documentation updates based on tctest.

20190727
	+ fix a few coverity warnings.
	+ documentation updates based on tctest.

20190720
	+ fix a few warnings for gcc 4.x
	+ add some portability/historical details to the tic, toe and infocmp
	  manual pages.
	+ correct fix for broken link from terminfo(5) to tabs(1) manpage
	  (report by Sven Joachim).

20190713
	+ change reset's behavior for margins to simply clear soft-margins if
	  possible, rather than clearing and then setting them according to the
	  terminal's width (suggested by Thomas Wolff).
	+ correct order of one wbkgd versus start_color call in test/padview.c

20190706
	+ add domterm -TD
	+ improve comments for recent changes, add alias xterm.js -TD

20190630
	+ add --with-tic-path and --with-infocmp-path to work around problems
	  building fallback source using pre-6.0 tic/infocmp.
	+ add a check in tic for paired indn/rin
	+ correct a buffer-limit in write_entry.c for systems that use caseless
	  filenames.
	+ add ms-terminal -TD
	+ add vscode, vscode-direct -TD

20190623
	+ improve the tabs.1 manual page to distinguish the PWB/Unix and 7th
	  Edition versions of the tabs utility.
	+ add configure check for getenv() to work around implementation shown
	  in Emscripten #6766, use that to optionally suppress START_TRACE
	  macro, whose call to getenv() may not work properly (report by Ilya
	  Ig Petrov).
	+ modify initialization functions to avoid relying upon persistent
	  data for the result from getenv().
	+ update config.guess, config.sub

20190615
	+ expand the portability section of the man/tabs.1 manual page.
	+ regenerate HTML manpages.

20190609
	+ add mintty, mintty-direct (adapted from patch by Thomas Wolff).
	  Some of the suggested user-defined capabilities are commented-out,
	  to allow builds with ncurses 5.9 and 6.0
	+ add Smol/Rmol for tmux, vte-2018 (patch by Nicholas Marriott).
	+ add rs1 to konsole, mlterm -TD
	+ modify _nc_merge_entry() to make a copy of the data which it merges,
	  to avoid modifying the source-data when aligning extended names.

20190601
	+ modify an internal call to vid_puts to pass extended color pairs
	  e.g., from tty_update.c and lib_mvcur.c (report by Niegodziwy Beru).
	+ improve manual page description of init_tabs capability and TABSIZE
	  variable.

20190525
	+ modify reset_cmd.c to allow for tabstops at intervals other than 8
	  (report by Vincent Huisman).

20190518
	+ update xterm-new to xterm patch #345 -TD
	+ add/use xterm+keypad in xterm-new (report by Alain D D Williams) -TD
	+ update terminator entry -TD
	+ remove hard-tabs from ti703 (report by Robert Clausecker)
	+ mention meml/memu/box1 in user_caps manual page.
	+ mention user_caps.5 in tic and infocmp manual pages.

20190511
	+ fix a spurious blank line seen with "infocmp -1fx xterm+x11mouse"
	+ add checks in repair_subwindows() to keep the current position and
	  scroll-margins inside the resized subwindow.
	+ add a limit check in newline_forces_scroll() for the case where the
	  row is inside scroll-margins, but not at the end (report by Toshio
	  Kuratomi, cf: 20170729).
	+ corrected a warning message in tic for extended capabilities versus
	  number of parameters.

20190504
	+ improve workaround for Solaris wcwidth versus line-drawing characters
	  (report by Pavel Stehule).
	+ add special case in tic to validate RGB string-capability extension.
	+ corrected string/parameter-field for RGB in Caps-ncurses.

20190427
	+ corrected problem in terminfo load/realignment which prevented
	  infocmp from comparing extended capabilities with the same name
	  but different types.

20190420
	+ improve ifdef's for TABSIZE variable, to help with AIX/HPUX ports.

20190413
	+ check for TABSIZE variable in test/configure script.
	+ used test/test_arrays.c to improve Caps.aix1 and Caps.hpux11
	+ corrected filtering of comments in MKparametrized.sh
	+ reduce duplication across Caps* files by moving some parts which do
	  not depend on order into Caps-ncurses.

20190406
	+ modify MKcaptab.sh, MKkey_defs.sh, and MKhashsize.sh to handle
	  split-up Caps-files.
	+ build-fixes if extended-functions are disabled.

20190330
	+ add "screen5", to mention italics (report by Stefan Assmann)
	+ modify description of xterm+x11hilite to eliminate unused p5 -TD
	+ add configure script checks to help with a port to Ultrix 3.1
	  (report by Dennis Grevenstein).
	  + check if "b" binary feature of fopen works
	  + check for missing feature of locale.h
	  + add fallback for strstr() in test-programs
	  + add fallback for STDOUT_FILENO in test-programs
	+ update config.guess, config.sub

20190323
	+ move macro for is_linetouched() inside NCURSES_NOMACROS ifndef.
	+ corrected prototypes in several manpages using script to extract
	  those in compilable form.
	+ use _nc_copy_termtype2() rather than direct assignment in setupterm,
	  in case it is called repeatedly using fallback terminfo descriptions
	  (report/patch by Werner Fink).

20190317
	+ regenerate llib-* files.
	+ modify tic to also use new function for user-defined capability info.
	+ modify _nc_parse_entry() to check if a user-defined capability has
	  an unexpected type; ignore it in that case.
	+ fix a special case of link-anchors in generated Ada html files.
	+ use newer rel=author tag in generated html rather than rev=made,
	  which did not become accepted.

20190309
	+ in-progress changes to add parameter-checking for common user-defined
	  capabilities in tic.
	+ update MKcodes.awk and MKnames.awk to ignore the new "userdef"
	  data in Caps-ncurses (cf: 20190302).

20190302
	+ corrected some of the undocumented terminfo names in Caps.hpux11
	+ add "Caps-ncurses" file to help with checking inconsistencies in some
	  user-defined capabilities.
	+ amend check for repeat_char to handle a case where setlocale() was
	  called after initscr() (report by "Ampera").

20190223
	+ fix typo in adds200 -TD
	+ add tic check for consistent alternate character set capabilities.
	+ improve check in mvcur() to decide whether to use hard-tabs, using
	  xt, tbc and hts as clues.
	+ replace check in reset command for obsolete "pt" capability using
	  tbc and hts capabilities as clues (report by Nicolas Marriott).

20190216
	+ improve manual page description of TABSIZE.
	+ add test/demo_tabs program.

20190209
	+ add check in tic to provide warnings for mismatched number of
	  parameters in the documented user-capability extensions.

20190202
	+ modify rpm test-package ".spec" file to work around naming conflict
	  with Redhat's package for ncurses6.
	+ modify no-leaks code in test/picsmap to avoid non-standard tdestroy.
	+ amend change to configure script which altered the top-level makefile
	  to avoid attempting to install the terminfo database when it was not
	  configured, to allow for installing the ".pc" files which are also
	  in the misc directory (report by Steve Wills).

20190126
	+ change some "%define" statements in test-packages for RPMs to
	  "%global" to work around changes in rpm 4.14 from recent Redhat.
	+ fixes for O_INPUT_FIELD extension (patch by Leon Winter).
	+ eliminate fixed buffer-size when reading $TERMCAP variable.
	+ correct logic in read_entry.c which prevented $TERMCAP variable from
	  being interpreted as a fallback to terminfo entry (prompted by
	  Savannah #54556, cf: 20110924).

20190121
	+ add a check in test/configure to work around non-ncurses termcap.h
	  file in Slackware.
	+ corrected flag for "seq" method of db 1.8.5 interface, needed by toe
	  on some of the BSDs.
	+ updated "string-hacks" feature.
	+ minor improvements to manpage typography.
	+ corrected conditionally-compiled limit on color pairs (report by
	  "Hudd").
	+ add -x option to test/pair_content, test/color_content for testing
	  init_extended_pair, extended_pair_content, init_extended_color,
	  extended_color_content
	+ add -p option to test/pair_content, test/color_content to show the
	  return values from the tested functions.
	+ improve manual page curs_color.3x discussion of error returns and
	  extensions.
	+ add O_INPUT_FIELD extension to form library (patch by Leon Winter).
	+ override/suppress --enable-db-install if --disable-database configure
	  option was given.
	+ change a too-large terminal entry in tic from a fatal error to a
	  warning (prompted by discussion with Gabriele Balducci).

20190112
	+ fix typo in term(5), improve explanation of format (report by Otto
	  Modinos).
	+ add nsterm-direct -TD
	+ use SGR 1006 mouse for konsole-base -TD
	+ use SGR 1006 mouse for putty -TD
	+ add ti703/ti707, ti703-w/ti707-w (Robert Clausecker)

20190105
	+ add dummy "check" rule in top-level and test-Makefile to simply
	  building test-packages for Arch.
	+ modify configure script to avoid conflict with a non-POSIX feature
	  that enables all parts of the system headers by default.  Some
	  packagers have come to rely upon this behavior (FreeBSD #234049).
	+ update config.guess, config.sub

20181229
	+ improve man/curs_mouse.3x with regard to xterm
	+ modify tracemunch to accept filename parameters in addition to use
	  as a pipe/filter.
	+ minor optimization to reduce calls to _nc_reserve_pairs (prompted by
	  discussion with Bryan Christ).
	+ add test/pair_content.c and test/color_content.c
	+ modify infocmp to omit filtering of "OTxx" names which are used for
	  obsolete capabilities, when the output is sorted by long-names.
	  Doing this helps when making a table of the short/long capability
	  names.

20181215
	+ several fixes for gcc8 strict compiler warnings.
	+ fix a typo in comments (Aaron Gyes).
	+ add nsterm-build309 to replace nsterm-256color, assigning the latter
	  as an alias of nsterm, to make mouse work with nsterm-256color -TD
	+ base gnome-256color entry on "gnome", not "vte", for \ 
consistency -TD
	+ updates for configure macros from work on tin and xterm:
	  + CF_GNU_SOURCE, allow for Cygwin's newlib when checking for the
	    _DEFAULT_SOURCE symbol.
	  + CF_VA_COPY, add fallback check if neither va_copy/__va_copy is
	    supported, to try copying the pointers for va_list, or as an array.
	    Also add another fallback check, for __builtin_va_copy(), which
	    could be used with AIX xlc in c89 mode.

20181208
	+ modify wbkgd() and wbkgrnd() to improve compatibility with SVr4
	  curses, changing the way the window rendition is updated when the
	  background character is modified (report by Valery Ushakov).

20181201
	+ add midnightbsd to CF_XOPEN_SOURCE macro (patch by Urs Jansen).
	+ add "@" command to test/ncurses F-test, to allow rapid jump to
	  different character pages.
	+ update config.guess, config.sub from
		http://git.savannah.gnu.org/cgit/config.git

20181125
	+ build-fix (reports by Chih-Hsuan Yen, Sven Joachim).

20181124
	+ check --with-fallbacks option to ensure there is a value, and add
	  the fallback information to top-level Makefile summary.
	+ add some traces in initialization to show whether a fallback entry is
	  used.
	+ build-fix for test/movewindow with ncurses-examples on Solaris.
	+ add "-l" option to test/background, to dump screen contents in a form
	  that lets different curses implementations be compared.
	+ modify the initialization checks for mouse so that the xterm+sm+1006
	  block will work with terminal descriptions not mentioning xterm
	  (report by Tomas Janousek).

20181117
	+ ignore the hex/b64 $TERMINFO in toe's listing.
	+ correct a status-check in _nc_read_tic_entry() so that if reading
	  a hex/b64 $TERMINFO, and the $TERM does not match, fall-through to
	  the compiled-in search list.

20181110
	+ several workarounds to ensure proper C compiler used in parts of
	  Ada95 tree.
	+ update config.guess, config.sub from
		http://git.savannah.gnu.org/cgit/config.git

20181027
	+ add OpenGL clients alacritty and kitty -TD
	+ add Smulx for tmux, vte-2018 -Nicholas Marriott

20181020
	+ ignore $TERMINFO as a default value in configure script if it came
	  from the infocmp -Q option.
	+ allow value for --with-versioned-syms to be a relative pathname
	+ add a couple of broken-linker symbols to the list of versioned
	  symbols to help with link-time optimization versus weak symbols.
	+ apply shift/control/alt logic when decoding xterm's 1006 mode to
	  wheel-mouse events (Redhat #1610681).

20181013
	+ amend change from 20180818, which undid a fix for the $INSTALL value
	  to make it an absolute path.

20181006
	+ improve a configure check to work with newer optimizers (report by
	  Denis Pronin, Gentoo #606142).
	+ fix typo in tput.c (Sven Joachim, cf: 20180825).

20180929
	+ fix typo in tvi955 -TD
	+ corrected acsc for regent60 -TD
	+ add alias n7900 -TD
	+ corrected acsc for tvi950 -TD
	+ remove bogus kf0 from tvi950 -TD
	+ added function-key definitions to agree with Televideo 950 manual -TD
	+ add bel to tvi950 -TD
	+ add shifted function-keys to regent60 -TD
	+ renumber regent40 function-keys to match manual -TD
	+ add cd (clr_eos) to adds200 -TD

20180923
	+ build-fix: remove a _tracef call which was used for debugging (report
	  by Chris Clayton).

20180922
	+ ignore interrupted system-call in test/ncurses's command-line, e.g.,
	  if the terminal were resized.
	+ add shift/control/alt logic for decoding xterm's 1006 mode (Redhat
	  #1610681, cf: 20141011).
	+ modify rpm test-packages to not use --disable-relink with Redhat,
	  since Fedora 28's tools do not work with that feature.

20180908
	+ document --with-pcre2 configure option in INSTALL.
	+ improve workaround for special case in PutAttrChar() where a cell is
	  marked as alternate-character set, to handle a case where the
	  character in the cell does not correspond to any of the ASCII
	  fallbacks (report by Leon Winter, cf: 20180505).
	+ amend change to form library which attempted to avoid unnecessary
	  update of cursor position in non-public fields, to simply disable
	  output in this case (patch by Leon Winter, cf: 20180414).
	+ improve check for LINE_MAX runtime limit, to accommodate broken
	  implementations of sysconf().

20180901
	+ improve manual page for wgetnstr, giving background for the length
	  parameter.
	+ define a limit for wgetnstr, wgetn_wstr when length is negative or
	  "too large".
	+ update configure script to autoconf 2.52.20180819 (Debian #887390).

20180825
	+ add a section to tput manual page clarifying how it determines the
	  terminal size (prompted by discussion with Grant Jenks).
	+ add "--disable-relink" to rpm test-packages, for consistency with the
	  deb test-packages.
	+ split spec-file into ncurses6.spec and ncursest6.spec to work around
	  toolset breakage in Fedora 28.
	+ drop mention of "--disable-touching", which was not in the final
	  20180818 updates.

20180818
	+ build-fix for PDCurses with ncurses-examples.
	+ improved CF_CC_ENV_FLAGS.
	+ modify configure scripts to reduce relinking/ranlib during library
	  install (Debian #903790):
	  + use "install -p" when available, to avoid need for ranlib of
	    static libraries.
	  + modify scripts which use "--disable-relink" to add a 1-second
	    sleep to work around tools which use whole-second timestamps, e.g.,
	    in utime() rather than the actual file system resolution.

20180804
	+ improve logic for clear with E3 extension, in case the terminal
	  scrolls content onto its saved-lines before actually clearing
	  the display, by clearing the saved-lines after clearing the
	  display (report/patch by Nicholas Marriott).

20180728
	+ improve documentation regarding feature-test macros in curses.h
	+ improve documentation regarding the virtual and physical screens.
	+ formatting fixes for manpages, regenerate man-html documentation.

20180721
	+ build-fixes for gcc8.
	+ corrected acsc for wy50 -TD
	+ add wy50 and wy60 shifted function-keys as kF1 to kF16 -TD
	+ remove ansi+rep mis-added to interix in 2018-02-23 -TD

20180714
	+ add enum, regex examples to test/demo_forms
	+ add configure check for pcre-posix library to help with MinGW port.

20180707
	+ build-fixes for gcc8.
	+ correct order of WINDOW._ttytype versus WINDOW._windowlist in
	  report_offsets.
	+ fix a case where tiparm could return null if the format-string was
	  empty (Debian #902630).

20180630
	+ add acsc string to vi200 (Nibby Nebbulous)
	  add right/down-arrow to vi200's acsc -TD
	+ add "x" to tput's getopt string so that "tput -x clear" works
	  (Nicholas Marriott).
	+ minor fixes prompted by anonymous report on stack overflow:
	  + correct order of checks in _nc_get_locale(), for systems lacking
	    locale support.
	  + add "#error" in a few places to flag unsupported configurations

20180623
	+ use _WIN32/_WIN64 in preference to __MINGW32__/__MINGW64__ symbols
	  to simplify building with MSVC, since the former are defined in both
	  compiler configurations (report by Ali Abdulkadir).
	+ further improvements to configure-checks from work on dialog, i.e.,
	  updated CF_ADD_INCDIR, CF_FIND_LINKAGE, CF_GCC_WARNINGS,
	  CF_GNU_SOURCE, CF_LARGEFILE, CF_POSIX_C_SOURCE, CF_SIZECHANGE, and
	  CF_TRY_XOPEN_SOURCE.
	+ update config.guess, config.sub from
		http://git.savannah.gnu.org/cgit/config.git

20180616
	+ build-fix for ncurses-examples related to gcc8-fixes (cf: 20180526).
	+ reduce use of _GNU_SOURCE for current glibc where _DEFAULT_SOURCE
	  combines with _XOPEN_SOURCE (Debian #900987).
	+ change target configure level for _XOPEN_SOURCE to 600 to address
	  use of vsscanf and setenv.
	+ improved configure-checks CF_SIZECHANGE and CF_STRUCT_TERMIOS from
	  work on dialog.

20180609
	+ modify generated ncurses*config and ncurses.pc, ncursesw.pc, etc.,
	  to list helper libraries such as gpm for static linking (Debian
	  #900839).
	+ marked vwprintw and vwscanw as deprecated; recommend using vw_printw
	  and vw_scanw, respectively.

20180602
	+ add RPM test-package "ncursest-examples".
	+ modified RPM test-package to work with Mageia6.

20180526
	+ add note in curs_util.3x about unctrl.h
	+ review/improve header files to ensure that those include necessary
	  files except for the previously-documented cases (report by Isaac
	  Pascual Monells).
	+ improved test-package scripts, adapted from byacc 1.9 20180525.
	+ fix some gcc8 warnings seen in Redhat package build, but
	  work around bug in gcc8 compiler warnings in comp_parse.c

20180519
	+ formatting fixes for manpages, regenerate man-html documentation.
	+ trim spurious whitespace from tmux in 2018-02-24 changes;
	  fix some inconsistencies in/between tmux- and iterm2-entries for SGR
	  (report by C Anthony Risinger)
	+ improve iterm2 using some xterm features which it has adapted -TD
	+ add check in pair_content() to handle the case where caller asks
	  for an uninitialized pair (Debian #898658).

20180512
	+ remove trailing ';' from GCC_DEPRECATED definition.
	+ repair a change from 20110730 which left an error-check/warning dead.
	+ fix several minor Coverity warnings.

20180505
	+ add deprecation warnings for internal functions called by older
	  versions of tack.
	+ fix a special case in PutAttrChar() where a cell is marked as
	  alternate-character set, but the terminal does not actually support
	  the given graphic character.  This would happen in an older terminal
	  such as vt52, which lacks most line-drawing capability.
	+ use configure --with-config-suffix option to work around filename
	  conflict with Debian packages versus test-packages.
	+ update tracemunch to work with perl 5.26.2, which changed the rules
	  for escaping regular expressions.

20180428
	+ document new form-extension O_EDGE_INSERT_STAY (report by Leon
	  Winter).
	+ correct error-returns listed in manual pages for a few form functions
	  (report by Leon Winter).
	+ add a check in form-library for null-pointer dereference:
		unfocus_current_field (form);
		form_driver (form, REQ_VALIDATION);
	  (patch by Leon Winter).

20180414
	+ modify form library to optionally delay cursor movement on a field
	  edge/boundary (patch by Leon Winter).
	+ modify form library to avoid unnecessary update of cursor position in
	  non-public fields (patch by Leon Winter).
	+ remove unused _nc_import_termtype2() function.
	+ also add/improve null-pointer checks in other places
	+ add a null-pointer check in _nc_parse_entry to handle an error when
	  a use-name is invalid syntax (report by Chung-Yi Lin).

20180407
	+ clarify in manual pages that vwprintw and vwscanw are obsolete,
	  not part of X/Open Curses since 2007.
	+ use "const" in some prototypes rather than NCURSES_CONST where X/Open
	  Curses was updated to do this, e.g., wscanw, newterm, the terminfo
	  interface.  Also use "const" for consistency in the termcap
	  interface, which was withdrawn by X/Open Curses in Issue 5 (2007).
	  As of Issue 7, X/Open Curses still lacks "const" for certain return
	  values, e.g., keyname().

20180331
	+ improve terminfo write/read by modifying the fourth item of the
	  extended header to denote the number of valid strings in the extended
	  string table (prompted by a comment in unibilium's sources).

20180324
	+ amend Scaled256() macro in test/picsmap.c to cover the full range
	  0..1000 (report by Roger Pau Monne).
	+ add some checks in tracemunch for undefined variables.
	+ trim some redundant capabilities from st-0.7 -TD
	+ trim unnecessary setf/setb from interix -TD

20180317
	+ fix a check in infotocap which may not have detected a problem when
	  it should have.
	+ add a check in tic for the case where setf/setb are given using
	  different strings, but provide identical results to setaf/setab.
	+ further improve fix for terminfo.5 (patch by Kir Kolyshkin).
	+ reorder loop-limit checks in winsnstr() in case the string has no
	  terminating null and only the number of characters is used (patch
	  by Gyorgy Jeney).

20180303
	+ modify TurnOn/TurnOff macros in lib_vidattr.c and lib_vid_attr.c to
	  avoid expansion of "CUR" in trace.
	+ improve a few lintian warnings in test-packages.
	+ modify lib_setup to avoid calling pthread_self() without first
	  verifying that the address is valid, i.e., for weak symbols
	  (report/patch by Werner Fink).
	+ modify generated terminfo.5 to not use "expand" and related width
	  on the last column of tables, making layout on wide terminals look
	  better (adapted from patch by Kir Kolyshkin).
	+ add a category to report_offsets, e.g., "w" for wide-character, \ 
"t"
	  for threads to make the report more readable.  Reorganized the
	  structures reported to make the categories more apparent.
	+ simplify some ifdef's for extended-colors.
	+ add NCURSES_GLOBALS and NCURSES_PRESCREEN to report_offsets, to show
	  how similar the different tinfo configurations are.

20180224
	+ modify _nc_resolve_uses2() to detect incompatible types when merging
	  a "use=" clause of extended capabilities.  The problem was seen in a
	  defective terminfo integrated from simpleterm sources in 20171111,
	  compounded by repair in 20180121.
	+ correct Ss/Ms interchange in st-0.7 entry (tmux #1264) -TD
	+ fix remaining flash capabilities with trailing mandatory delays -TD
	+ correct cut/paste in NEWS (report by Sven Joachim).

20180217
	+ remove incorrect free() from 20170617 changes (report by David Macek).
	+ correct type for "U8" in user_caps.5; it is a number not boolean.
	+ add a null-pointer check in safe_sprintf.c (report by Steven Noonan).
	+ improve fix for Debian #882620 by reusing limit2 variable (report by
	  Julien Cristau, Sven Joachim).

20180210
	+ modify misc/Makefile.in to install/uninstall explicit list in case
	  the build-directory happens to have no ".pc" files when an uninstall
	  is performed (report by Jeffrey Walton).
	+ deprecate safe-sprintf, since the vsnprintf function, which does what
	  was needed, was standardized long ago.
	+ add several development/experimental options to development packages.
	+ minor reordering of options in configure script to make the threaded
	  and reentrant options distinct from the other extensions which are
	  normally enabled.

20180203
	+ minor fixes to test/*.h to make them idempotent.
	+ add/use test/parse_rgb.h to show how the "RGB" capability works.
	+ add a clarification in user_caps.5 regarding "RGB" capability.
	+ add extended_slk_color{,_sp} symbols to the appropriate
	  package/*.{map,sym} files (report by Sven Joachim, cf: 20170401).

20180129
	+ update "VERSION" file, used in shared-library naming.

Log message:
Add patches to address CVE-2018-19211, CVE-2019-17594, and CVE-2019-17595.

Log message:
devel: align variable assignments

pkglint -Wall -F --only aligned --only indent -r

No manual corrections.

Log message:
ncurses: fix circular dependency for Arch Linux

pkgsrc changes
--------------
* Remove groff dependency when built on Arch Linux
* Bump revision

Log message:
Use https for all invisible-island.net HOMEPAGEs.

Log message:
devel/ncurses: Add fake pc file

Add support for creating ncurses.pc in the buildlink dir, either by
linking to the base one, or creating a fake one.  More or less copied
from ../libuuid/builtin.mk.