+ add configure check for exctags vs ctags, to work around pkgsrc.
+ simplify logic in _nc_get_screensize() to make it easier to see how
environment variables may override system- and terminfo-values
(prompted by discussion with Igor Bujna).
+ make debug-traces for COLOR_PAIR and PAIR_NUMBER less verbose.
+ improve handling of color-pairs embedded in attributes for the
extended-colors configuration.
+ modify MKlib_gen.sh to build link_test with sp-funcs.
+ build-fixes for OpenSolaris aka Solaris 11, for wide-character
configuration as well as for rpath feature in *-config scripts.
+ quiet some pedantic gcc warnings.
+ modify _nc_wgetch() to check for a -1 in the fifo, e.g., after a
SIGWINCH, and discard that value, to avoid confusing application
(patch by Eygene Ryabinkin, FreeBSD bin/136223).
+ add configure script --enable-sp-funcs to enable the new set of
extended functions.
+ start integrating patches by Juergen Pfeifer:
+ add extended functions which specify the SCREEN pointer for several
curses functions which use the global SP (these are incomplete;
some internals work is needed to complete these).
+ add special cases to configure script for MinGW port.
