This patch removes some unnecessary differences between the official
version of readline, and GDB's copy of it.
readline/ChangeLog.gdb:
* terminal.c: Remove duplicate includes of windows.h and
wincon.h.
(_rl_get_screen_size): Remove redundant code for MinGW getting
the console size from the Windows API.
that don't define SIGWINCH.
* terminal.c (_rl_get_screen_size) [__DJGPP__]: Compute the
screen width and height using console I/O.
(_rl_init_terminal_io) [__MSDOS__]: Zero out all the _rl_term_*
variables. Convert to _rl_* naming scheme.
(_rl_set_cursor) [__MSDOS__]: Ifdef away this function.
* display.c (_rl_move_vert) [__MSDOS__]: Don't use undeclared
variable `l'. Use `delta' instead recomputing its value anew.
Assign -delta to i instead of the other way around.
Declare _rl_redisplay_after_sigwinch.
[__DJGPP__]: Don't declare term_buffer and term_string_buffer (they are
unused.)
(_rl_get_screen_size) [__DJGPP__]: Call ScreenRows and ScreenCols.
(_rl_init_terminal_io) [__GO32__]: Don't call them here. Instead, call
_rl_get_screen_size. Set terminal_name. Return 0, to be consistent with
the function's declaration.
(ding) [__GO32__]: Support visual bell by calling ScreenVisualBell.