+ change search order of options for Solaris in CF_SHARED_OPTS, to
work with 64-bit compiles.
+ correct quoting of assignment in CF_SHARED_OPTS case for aix
(cf: 20081227)
+ correct limit-check in wredrawln, accounting for begy/begx values
(patch by David Benjamin).
+ fix most compiler warnings from clang.
+ amend build-fix for OpenSolaris, to ensure that a system header is
included in curses.h before testing feature symbols, since they
may be defined by that route.
+ 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).
+ finish changes to wgetch(), making it switch as needed to the
window's actual screen when calling wrefresh() and wgetnstr(). That
allows wgetch() to get used concurrently in different threads with
some minor restrictions, e.g., the application should not delete a
window which is being used in a wgetch().
+ simplify mutex's, combining the window- and screen-mutex's.
+ modify screen.* terminfo entries using new screen+fkeys to fix
overridden keys in screen.rxvt (Debian #478094) -TD
+ modify internal interfaces to reduce wgetch()'s dependency on the
global SP.
+ simplify some loops with macros each_screen(), each_window() and
each_ripoff().
+ continue modifying test/ditto.c toward making it demonstrate
multithreaded use_screen(), using fifos to pass data between screens.
+ fix typo in form.3x (report by Mike Gran).
+ add new functions to lib_trace.c to setup mutex's for the _tracef()
calls within the ncurses library.
+ for the reentrant model, move _nc_tputs_trace and _nc_outchars into
the SCREEN.
+ start modifying test/worm.c to provide threading demo (incomplete).
+ separated ifdef's for some BSD-related symbols in tset.c, to make
it compile on LynxOS (report by Greg Gemmer).
