+ amend fix for _nc_ripoffline from 20091031 to make test/ditto.c work
in threaded configuration.
+ move _nc_tracebits, _tracedump and _tracemouse to curses.priv.h,
since they are not part of the suggested ABI6.
+ modify make_db_path() to allow creating "terminfo.db" in the same
directory as an existing "terminfo" directory. This fixes a case
where switching between hashed/filesystem databases would cause the
new hashed database to be installed in the next best location -
root's home directory.
+ add variable cf_cv_prog_gnat_correct to those passed to
config.status, fixing a problem with Ada95 builds (cf: 20111022).
+ change feature test from _XPG5 to _XOPEN_SOURCE in two places, to
accommodate broken implementations for _XPG6.
+ eliminate usage of NULL symbol from etip.h, to reduce header
interdependencies.
+ add configure check to decide when to add _XOPEN_SOURCE define to
compiler options, i.e., for Solaris 10 and later (cf: 20100403).
This is a workaround for gcc 4.6, which fails to build the c++
binding if that symbol is defined by the application, due to
incorrectly combining the corresponding feature test macros
(report by Peter Kruse).
+ 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.
+ change _nc_has_mouse() to has_mouse(), reflect its use in C++ and
Ada95 (patch by Juergen Pfeifer).
+ document in TO-DO an issue with Cygwin's package for GNAT (report
by Mike Dennison).
+ improve error-checking of command-line options in "tabs" program.
+ use NCURSES_MOUSE_MASK() in definition of BUTTON_RELEASE(), etc., to
make those work properly with the "--enable-ext-mouse" configuration
(cf: 20050205).
+ improve documentation of build-cc options in INSTALL.
+ work-around a bug in gcc 4.2.4 on AIX, which does not pass the
-static/-dynamic flags properly to linker, causing test/bs to
not link.
+ increase size of array in _nc_visbuf2n() to make "tic -v" work
properly in its similar_sgr() function (report/analysis by Peter
Santoro).
+ add --enable-reentrant configure option for ongoing changes to
implement a reentrant version of ncurses:
+ libraries are suffixed with "t"
+ wrap several global variables (curscr, newscr, stdscr, ttytype,
COLORS, COLOR_PAIRS, COLS, ESCDELAY, LINES and TABSIZE) as
functions returning values stored in SCREEN or cur_term.
+ move some initialization (LINES, COLS) from lib_setup.c,
i.e., setupterm() to _nc_setupscreen(), i.e., newterm().
