+20231028
+ + move xterm focus mode 1004 from xterm+sm+1006 into xterm+focus as
+ fe/fd capabilities, like vim (vim-pr #13440).
+ + modify --with-pkg-config-libdir option to make "libdir" the default,
+ as documented, rather than "auto" (report by Branden Robinson).
+ + improve messages from configure script (patches by Branden Robinson).
+