+20180106
+ + fixes for writing extended color pairs in putwin.
+ + modify test/savescreen.c to add test patterns that exercise 88-,
+ 256-, etc., colors.
+ + modify configure option --with-build-cc, adding clang, c89 and c99
+ as possible default values.
+ + modify ncurses-examples configure script to use pkg-config for the
+ extra form/menu/panel libraries, to be more consistent with the
+ handling of the curses/ncurses library.
+ + modify test-packages for mingw to supply "pc" files.
+ + modify gen-pkgconfig.in to list -lpthread as a private library when
+ configured to access it via weak symbols.
+ + simplify gen-pkgconfig.in, adding -ltinfo without the special linker
+ checks because some versions of the linker simply hard-code the
+ behavior.
+ + update URLs for ncurses website to use https.
+ + modify CF_CURSES_LIBS to fill in $cf_nculib_root in case the
+ ncurses-examples are built with a system ncurses that lacks the
+ standard "curses" symbolic link, as done by SuSE. The symbol is
+ needed to make a followup check for the pthread library work, and
+ would be set properly using the options "--with-screen", etc.
+ + generate misc/*.pc with "all" rule, as done for "sources" rule
+ (report by Jeffrey Walton).
+
+20171230
+ + build-fix for ncurses-examples with Fedora27, adding check for
+ reset_color_pairs() -- not yet in Fedora's package.
+ + consistently add $CFLAGS to $MK_SHARED_LIB symbol in configure
+ script when the latter happens to use the C compiler rather than
+ directly using the loader (report by Jeffrey Walton).
+ + set ABI for upcoming 6.1 release in "*.map" files. While there are
+ some remaining internals to apply, no ABI-related changes are
+ anticipated.
+ + add configure --with-config-suffix option to work around filename
+ conflict with Redhat packages versus test-packages.
+