+20200418
+ + improve tracemunch logic for "RUN" compaction.
+ + fix a special case in wresize() where copying the old text did not
+ check if the last cell on a row was the beginning of a fullwidth
+ character (adapted from patch by Benno Schulenberg).
+ + use vt52+keypad in xterm-vt52, from xterm #354 -TD
+ + improve see-also section of user_caps.5
+
+20200411
+ + fix find_pair(), overlooked when refactoring for _nc_reserve_pairs()
+ (report/testcase by Brad Town, cf: 20170812).
+ + add a trailing null for magic-string in putwin, flagged by gcc 10
+ + update check for gcc version versus gnat to work with gcc 10.x
+
+20200404
+ + modify -fvisibility check to work with g++
+ > fixes for building with Visual Studio C++ and msys2 (patches by
+ "Maarten Anonymous"):
+ + add configure option and check for gcc -fvisibility=hidden feature
+ + define NCURSES_NOMACROS in lib_gen.c to work around Visual Studio
+ C++ preprocessor limitations.
+ + modify some of the configure-macros, as well as mk-1st.awk to work
+ with Visual Studio C++ default filenaming.
+
+20200328
+ + correct length of buffer copied in dup_field().
+ + remove "$(srcdir)/" from path of library.gpr, needed for out-of-tree
+ builds of Ada95 (patch by Adam Van Ymeren).
+