+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).
+