stdout has been made binary. Start at the top of the screen since
the internal terminal otherwise will write "below the screen."
[MSDOS]: #include <dos.h> and <time.h>, but not <sys/ioctl.h>.
(read_avail_input) [MSDOS]: Work around `ioctl'. Also read through
dos_keyread for better keyboard support.
(interrupt_signal) [MSDOS]: Don't claim we can core dump.
(kbd_buffer_store_event): Cast a pointer to avoid a compiler warning.
(read_avail_input): Args to `kill' were backwards.
(kbd_buffer_get_event): If deleting last frame, call Fkill_emacs.
(modify_event_symbol): New arg NAME_ALIST.
Allow SYMBOL_TABLE to be an alist.
(Vvendor_key_alist): New variable.
(syms_of_keyboard): Initialize it.
(make_lispy_event): Handle vendor-specific keysyms.
(lispy_function_keys): Delete `remove' and th HP keysyms.
(read_avail_input): Turn O_NDELAY off on DGUX as on USG.
(init_callproc) [MSDOS]: Initialize binary-process.
[MSDOS]: Declare binary-process.
[MSDOS]: Include <fcntl.h>, <sys/stat.h>, <sys/param.h>,
and <errno.h> needed for the next changes.
(Fcall_process) [MSDOS]: Create temporary file for process output.
Run the subprocess using `run_msdos_command' instead of forking.
Arrange for cleanup to erase temporary file.
(Fcall_process) [not subprocesses]: Barf if zero buffer argument.
(call_process_cleanup) [MSDOS]: Close and erase temporary file
instead of the pid-stuff.
(Fcall_process_region) [MSDOS]: Create temporary file in $TMP or $TEMP.
(Fchild_setup) [MSDOS]: #if 0, as it is not used.
(make_hdr) [MSDOS]: Cast a pointer for bzero.
(write_segment) [EFAULT]: Check for before using.
(adjust_lnnoptrs) [MSDOS]: Use provided descriptor.
(adjust_lnnoptrs): Return 0 if ok.
<sys/param.h> needed for the following changes, but not <sys/ioctl.h>
(discard_tty_input) [MSDOS]: Do it by reading till no more keys available.
(init_baud_rate) [MSDOS]: Assume highest possible speed.
(sys_suspend) [MSDOS]: Save default directory. Call via system, not via fork.
(emacs_get_tty, emacs_set_tty) [MSDOS]: Don't do anything.
(init_sys_modes) [MSDOS]: Use raw mode.
(get_frame_size) [MSDOS]: Get from bios.
(reset_sys_modes) [MSDOS]: Back to cooked mode.
(start_of_text) [MSDOS]: Reference _tstart.
(select) [MSDOS]: Don't use signals, use sleeping.
(init_sys_modes) [MSDOS]: Initialize internal terminal.
the following changes.
(Ffile_name_directory, Fexpand_file_name) [FILE_SYSTEM_CASE]: Apply
case conversion if defined.
(Ffile_name_directory, Ffile_name_nondirectory, file_name_as_directory,
directory_file_name, Fexpand_file_name, Fsubstitute_in_file_name,
expand_and_dir_to_file) [MSDOS]: Drive letter support.
(Fexpand_file_name) [MSDOS]: Support for multiple default directories.
(Ffile_writeable_p) [MSDOS]: Don't call access with file name ending in slash.
(Finsert_file_contents) [MSDOS]: Determine file type by name (call
find-buffer-file-type) and change CR+LF to LF if it is a text file.
(Fwrite_region) [MSDOS]: Use text/binary mode as specified by buffer_file_type.
(syms_of_fileio) [MSDOS]: Set Qfind_buffer_file_type.
(Fsubstitute_in_file_name) [MSDOS]: Ignore case in environtment variable.
(Fdirectory_files, file_name_completion): Use it.
[MSDOS]: #include <dirent.h> instead of <sys/dir.h>. Avoid
some external definitions.
(Ffile_attributes) [MSDOS]: Set execute bits from file name.
(Ffile_name_all_completions) [FILE_SYSTEM_CASE]: Convert
case of file name as as indicated by conditional.
