+20200308
+ + update copyright notices in test-packages.
+ + modify tracemunch to guard against errors in its known_p1 table.
+ + add several --with-xxx-libname options, to help with pkgsrc (prompted
+ by discussion with Thomas Klausner).
+
+20200301
+ + modify wbkgd() and wbkgrnd() to avoid storing a null in the
+ background character, because it may be used in cases where the
+ corresponding 0x80 is not treated as a null (report by Marc Rechte,
+ cf: 20181208).
+
+20200229
+ + modify CF_NCURSES_CONFIG to work around xcode's c99 "-W" option,
+ which conflicts with conventional use for passing linker options.
+ > fixes for building with Visual Studio C++ and msys2 (patches by
+ "Maarten Anonymous"):
+ + check for pcre2posix.h instead of pcre2-posix.h
+ + add case in CF_SHARED_OPTS for msys2 + msvc
+ + add fallback definition for STDIN_FILENO in progs.priv.h
+ + modify win_driver.c to use _alloca() rather than gcc's variable
+ length array feature.
+ + add NCURSES_IMPEXP to ncurses wrapped-variable declarations
+ + remove NCURSES_IMPEXP from class variables in c++/cursslk.h
+ + remove fallback prototype for exit() from c++/etip.h.in
+ + use configured check for <sys/time.h> in a couple of places
+ + conditionally include winsock.h in ncurses/win32con/gettimeofday.c,
+ because Visual Studio needs this for the timestruct declaration.
+ + adjust syntax in a couple of files using the NCURSES_API symbol.
+
+20200222
+ + expanded note in ncurses.3x regarding automatically-included headers
+ + improve vt50h and vt52 based on DECScope manual -TD
+ + add/use vt52+keypad and vt52-basic -TD
+ + check/workaround for line-too-long in Ada95 generate utility when
+ building out-of-tree.
+ + improve/update HEADER_DEPS in */Makefile.in
+ + add "check" rule to include/Makefile, to demonstrate that the headers
+ include all of the required headers for the types used.
+