+20211016
+ + build-fix for pmake with libtool.
+ + improve make-tar.sh scripts, adding COPYING to tar file, and clean up
+ shellcheck warnings.
+ + add link for "reset6" manpage in test-package ncurses6-doc
+ + revise configure option --with-pkg-config-libdir, using the actual
+ search path from pkg-config or pkgconf using the output from --debug
+ (report by Pascal Pignard).
+ + freeze ABI in ".map" files.
+