+20230311
+ + improve manpage description for addch versus unctrl format used for
+ non-printable characters.
+ + modify version-check for gcc/g++, now works for msys2.
+ + modify check in _nc_write_entry() for multiply defined aliases to
+ report problems within the current runtime of tic rather than for
+ conflicts with pre-existing terminal descriptions.
+ + allow for MinGW32-/64-bit configurations to use _DEFAULT_SOURCE
+ + clarify interaction of -R option versus -C, -I and -r in infocmp
+ manpage.
+ + build-fix in lib_win32con.c (cf: 20230211).
+
+20230225
+ + build-fixes for rpm test-packages.
+ + add/use configure check for clock_gettime(), to supersede
+ gettimeofday().
+
+20230218
+ + configure-script improvements:
+ + recent msys2 headers work with _DEFAULT_SOURCE; amend check
+ + use $ac_includes_default in most cases where stdlib.h should work
+ + use #error consistently vs "make an error"
+ + add configure macro for gettimeofday vs inline check
+
+20230211
+ + set dwShareMode in calls to CreateConsoleScreenBuffer() (patch by
+ Hannes Domani).
+ + use CreateFile with "CONIN$", "CONOUT$" rather than GetStdHandle to
+ obtain a handle on the actual console, avoiding redirection in the
+ MinGW/Win32 configurations (adapted from patch by LIU Hao).
+