+ 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
+ improve test-packages for ncurses-examples and AdaCurses for lintian
+ modify logic for endwin-state to be able to detect the case where
the screen was never initialized, using that to trigger a flush of
ncurses' buffer for mvcur, e.g., in test/dots_mvcur.c for the
term-driver configuration.
+ add dependency upon ncurses_cfg.h to a few other internal header
files to allow each to be compiled separately.
+ add dependency upon ncurses_cfg.h to tic's header-files; any program
using tic-library will have to supply this file. Legacy tack
versions supply this file; ongoing tack development has dropped the
dependency upon tic-library and new releases will not be affected.
+ add vt520ansi terminfo entry (patch by Mike Gran)
+ further improve MinGW support for the scenario where there is an
ANSI-escapes handler such as ansicon running in the console window
(patch by Juergen Pfeifer).
+ improve cleanup() function in lib_tstp.c, using _exit() rather than
exit() and checking for SIGTERM rather than SIGQUIT (prompted by
comments forwarded by Nicholas Marriott).
+ reduce name pollution from term.h, moving fallback #define's for
tcgetattr(), etc., to new private header nc_termios.h (report by
Sergio NNX).
+ two minor fixes for tracing (patch by Vassili Courzakis).
+ improve trace initialization by starting it in use_env() and
ripoffline().
+ review old email, add details for some changelog entries.
