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>In the cursesmodule patch, the first argument to intrflush
>is changed from NULL to stdscr.  Why?
In PDCurses intrflush return ERR if first arg is NULL.

>In the setting of _C_API_VERSION, what does the string
>"PDCurses M" mean?  (In particular, what does the 'M' stand
for?)
_C_API_VERSION setting to numeric constant PDC_BUILD
currentli 2601.
Bat _C_API_NAME setting to name of C curses library.
I modyfy source of PDCurses and add suffix "M".
Currently all my changes applay in head branch, 
and suffix "M" not nidded. ;-)