(Fx_create_frame): Move unwind_create_frame setup down.

[emacs.git] / src / ChangeLog.2

1988-08-31  Richard Stallman  (rms@corn-chex.ai.mit.edu)

        * Version 18.52 released.

        * x11term.c (XT_GetDefaults): Replaced entire function.

        * unexhp9k800.c: #endif was missing.

        * crt0.c [hp9000s300]: New variable flag_68010.

1988-08-30  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * m-isi-ov.h (LOAD_AVE_{CVT,TYPE}): On 4.3, different definitions.

        * m-iris4d.h: Define XSETMARKBIT.

1988-08-29  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * m-ibmrt.h (CANNOT_DUMP): Was defined by mistake in last change.

        * m-amdahl.h (NSIG): If it's 19, make it 20.
        Overrides Amdahl's mistake.

1988-08-27  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * x11fns.c, x11term.c (XXscreen): New variable, default screen number.
        All calls to BlackPixel, WhitePixel, DisplayCells, DefaultColormap
        pass this.

1988-08-26  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * data.c (init_data) [uts]: Handle SIGEMT.

        * m-apollo.h (APOLLO_SR10): Define this if BSD4_3.
        (BSTRING): If APOLLO_SR10, don't alter this.

        * emacs.c [APOLLO]: If APOLLO_SR10, omit the acl code.

        * filemode.c (ftypelet): If S_IFIFO==S_IFSOCK, avoid duplicate cases.

        * m-alliant4.h: Add missing `*/'.

1988-08-25  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * x11term.c (writechars): Don't call updateline;
        output just the chars that are specified; don't clear to end.

        * m-ibmrt-aix.h: Define getwd.  Define bcopy, etc. as macros.
        Define LIBX10_MACHINE and change LIBS_MACHINE.

1988-08-24  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * xterm.c (XTread_socket): If HAVE_SELECT, call xfixscreen
        before waiting.

        * dispnew.c (update_line): comments added.

        * xterm.c (writechars): Output only the chars specified
        even if in update; don't clear to end.
        (XTread_socket): Check O_NDELAY only if it and F_GETFL are defined.
        (x_term_init) [IBMRTAIX]: do call gethostname.
        () [IBMRTAIX]: Include sys/time, not time.

1988-08-23  Chris Hanson  (cph@kleph)

        * xterm.c (XTread_socket): Do not call `xfixscreen' if O_NDELAY is
        set.  On hpux, this causes an I/O error.

1988-08-23  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * m-news800.h: define HAVE_ALLOCA.

1988-08-22  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * keyboard.c (read_avail_input) [no FIONREAD]: Always set O_NDELAY.

1988-08-21  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * xterm.c, x11term.c (XTclear_end_of_line):
        Arg was misinterpreted as place to *start* clearing.
        (x_clear_end_of_line): New fn does what XTclear_end_of_line did.
        All callers in this file changed.

        * sysdep.c [USG] (getwd): Free the entire string retd by getcwd.

1988-08-20  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * m-ibmrt.h: Delete the USG conditionals.

        * m-ibmrt-aix.h: New file.

        * process.c (wait_reading_process_input) [IBMRTAIX]: Do `select'
        as on HPUX.
        * process.c [IBMRTAIX]: Use sys/time.h.

        * dispnew.c (update_line): Handle case of !char_ins_del_ok.

        * xterm.c (x_term_init): Use X keymap spec'd in user's xdefaults.
        Also use macro X_DEFAULT_FONT to determine ultimate default font.

        * sysdep.c (child_setup_tty) [IBMRTAIX]: Turn off extra tty features.
        (init_sys_modes) [IBMRTAIX]: Turn off enhanced line editor.
        Also, call hft_init.
        (init_sys_modes) [TCXONC]: Make sure output isn't stopped.
        (reset_sys_modes) [IBMRTAIX]: Call hft_reset.
        (hft_init, hft_reset): New function.
        (sys_siglist) [IBMRTAIX]: Alternate signal defs.

        * unexec.c: Treat IBMRTAIX like IRIS.

        * fileio.c (Fcopy_file): If USE_UTIME, use `utime' instead of `utimes'.

        * emacs.c (main) [IBMRTAIX]: Handle additional fatal signals.

1988-08-19  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * search.c (Fstore_match_data): Failed to skip the 2nd nil in a pair.

        * search.c (search_buffer) [C_ALLOCA]: Use auto space for BM_tab.

1988-08-18  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * keyboard.c: Declare errno.

1988-08-15  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * m-news800.h: Define COMPILER_REGISTER_BUG and LIBS_TERMCAP.

1988-08-12  Mike Haertel  (mike@spiff.ai.mit.edu)

        * m-7300.h: Made it understand how do undump a demand-paged
        executable.

1988-08-11  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * unexec.c (adjust_lnnoptrs): auxent is a union, not a struct.

1988-08-10  Chris Hanson  (cph@kleph)

        * keyboard.c (read_avail_input): Do not set O_NDELAY if
        `read_socket_hook' is in use.  This causes Xlib to get an IO error
        under X10, and could potentially do the same for X11.

        * s-hpux.h (ADJUST_EXEC_HEADER): Undefine this.  Demand loaded
        exec format doesn't work correctly in hpux.
        (HAVE_SOCKETS): hpux has BSD-style sockets.

        * xfns.c, xterm.c, x11term.c, x11fns.c: Conditionalize "time.h"
        inclusion on USG instead of HPUX.

        * xterm.c, x11term.c (XTread_socket): Conditionalize call to
        `XPeekEvent' on `HAVE_SELECT'.

        * xterm.c: Supply missing definition of `handler'.

1988-08-09  Chris Hanson  (cph@kleph)

        * indent.c (current-column): fix typo.

        * keyboard.c, undo.c: add explicit storage class to several
        variable declarations so that GCC does not generate warning
        message.

1988-08-08  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * eval.c: doc fix.

1988-08-04  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * fileio.c: Doc fix.

        * keymap.c (Fwhere_is_internal): Call get_keyelt.

1988-08-03  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * unexec.c [sun386]: control header files, like STRIDE, etc.

        * s-sunos4.h: Define LD_SWITCH_SYSTEM, not LD_SWITCH_MACHINE.
        * m-sun386.h: Vice versa.
        (O_NDELAY): Delete definition; duplicates s-sunos4.h.
        (LD_SWITCH_SYSTEM): Undefine this, since the s-sunos4.h defn
        is wrong for the 386.

1988-07-31  Richard Stallman  (rms@juicy-juice.lcs.mit.edu)

        * sysdep.c (select_alarm): If read_alarm_should_throw, throw back
        to read_input_waiting.
        (read_input_waiting): Call setjmp, so that can be done.
        * xterm.c (XTread_socket) [no SIGIO]:
        If O_NDELAY not set, wait for an event.
        Set read_alarm_should_throw while waiting.
        * x11term.c (internal_socket_read): Similar change.

        * x11fns.c (Fx_set_mouse_color): Don't free save_color; can be literal.
        * x11term.c (x_term_init): Clear reversevideo if fg or bg color specd.

1988-07-28  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * print.c (Fwith_output_to_temp_buffer): Detect error for non-strings.

1988-07-22  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * s-usg5-3.h: Define LIBX{10,11}_SYSTEM.

        * ymakefile: New variables LIBX{10,11}_SYSTEM to be set in s- file.

        * xterm.c (XExitGracefully): Declare the args, for debugging.
        (x_io_error): New function now used as handler for X I/O errors.

        * xfns.c [not HAVE_TIMEVAL]: Don't include any time.h.

        * sysdep.c (sys_suspend) [VMS]: Ignore SIGINT while suspended.

        * undo.c (Fundo_more): Better err msg.

1988-07-18  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * indent.c (current_column, Fmove_to_column): ignore invisible lines.

        * keyboard.c (command_loop_1): No direct output if selective display.

1988-07-17  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * ymakefile (LD_TEXT_START_FLAGS): -e should be __start, not address.

        * m-orion105.h: New file.

1988-07-15  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * alloca.s (pyramid): Define _setjmp, _longjmp only if PYRAMID_OLD.

1988-07-12  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * s-rtu.h (fsync): Define this as no-op.

        * process.c, sysdep.c: Rename MASSCOMP flag to RTU.

1988-07-10  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * term.c (write_chars): Compensate for wasted_chars when comparing curX

1988-07-05  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * lread.c (openp): Don't call strncat if lsuffix is 0.

1988-06-28  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * callint.c (Fcall_interactively): On VMS, treat 'f' like 'F'.

1988-06-27  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * emacs.c (Fkill_emacs): Run kill-emacs-hook.

1988-06-23  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * ymakefile: Add missing dependencies.

        * cmds.c (Fself_insert_command): Pass correct 2nd arg to SelfInsert.

        * ymakefile: Avoid newline after cpp in commands for alloca.s.

1988-06-22  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * ymakefile: #undef register, in case m- or s- defines it.

1988-06-21  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * unexhp9k800.c: Complete replacement.

        * x11fns.c (x_set_cursor_colors): Send current colors to X server.
        (Fx_set_mouse_color): Use that function.
        * x11term.c (XFlipColor, XInitWindow): Use that function.
        Variable `mous' deleted; handle reverse video for `mous_color'
        by checking it with `strcmp'.

        * x11term.c (x_term_init): `sizeof' was used for strings, in mallocing.
        Delete unused vars `cursor_fore' and `cursor_back'.

        * x11term.c (CursorToggle): Make solid cursor proper color
        when no text char is there.

        * x11term.c (XT_Set_Size_Hints): New arg PR.
        At startup, it's the value from XGeometry, else 0.
        Use it when setting the flags (which dims are user-specified).

        * x11term.c (XT_Set_Size_Hints): Conditional for XICCC.

        * x11term.c (internal_socket_read): Don't call change_window_size
        with arguments too small for it to handle.

        * dispnew.c (window_change_signal, {un,}hold_window_change):
        If a signal happens during update_screen, just set flag;
        resignal when update_screen finishes.
        * xdisp.c (DoDsp, message, message1): Call {un,}hold_window_change.

        * dispnew.c (Vwindow_system_version): New variable.
        (syms_of_dispnew, init_display): Set this variable.

        * callint.c (Fcall_interactively): For `N', convert prefix to number.

1988-06-18  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * termcap.c (tgetst1): Tolerate missing colon at end of entry.

1988-06-15  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * data.c (Fkill_local_variable): Used to clobber other buffer's value.

1988-06-14  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * x11fns.c, x11term.c: "Mouse queue" was a stack; make it a queue.
        New vars XXm_queue_in, XXm_queue_out.
        (Fx_{proc,get}_mouse_event): Use XXm_queue_out as fetch index.
        (internal_socket_read): Use XXm_queue_in as store index.
        (x_term_init): Init the new vars.

1988-06-10  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * window.c (Fset_window_configuration): Handle change in screen size.

        * s-hpux.h: Delete -lBSD from LIBS_SYSTEM.
        * m-hp9000s300.h: Define string fns as macros even in version 6.

1988-06-08  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * buffer.c (SetBfp): Initialize `swb'.  This matters when SetBfp
        is called during initialization, on Masscomp.

1988-06-03  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * sysdep.c (kbd_input_ast, end_kbd_input): Eliminate `ast_active'.
        (end_kbd_input): Use LIB$AST_IN_PROG.

        * lread.c (init_read): Don't be confused by Qnil in normal_path.

        * data.c (Fsymbol_value): Check nullness of per-buffer sym's buffer.

        * callint.c (Fcall_interactively): Don't put non-strings into visargs.

1988-06-02  Richard Stallman  (rms@rice-krispies.ai.mit.edu)

        * keyboard.c (read_avail_input, input_available_signal):
        Make `buf' as long as kbd_buffer.

1988-06-01  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * xdisp.c (decode_mode_spec): Output `%%' as a `%'.

        * sysdep.c (kbd_input_ast): Save and restore errno.
        * keyboard.c (input_available_signal, interrupt_signal): Likewise.
        * dispnew.c (window_change_signal): Likewise.
        * process.c (child_sig): Likewise.

1988-05-31  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * x11fns.c (Fx_proc_mouse_event): When looking up a meta-click,
        look for the meta-prefix-char first.

        * xmenu.c (Fx_popup_menu): Typo calling BLOCK_INPUT_DECLARE.

1988-05-28  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

        * s-iris3-{5,6}.h: Undo Jan 11 change.

1988-05-23  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * minibuf.c (read_minibuf): If PROMPT's not a string, make it one.

1988-05-22  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * m-alliant.h: Typo made m-alliant1.h lose.
        * m-alliant4.h: New file.

        * fns.c (Freverse): Rename `vector' to `vec'.
        On alliant, `vector' is a typedef in param.h.

1988-05-20  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * process.c (kill_buffer_processes): Send SIGHUP, not SIGKILL.

1988-05-19  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * m-mips.h, m-iris4d.h (XUNMARK): Cast unsigned before shifting.

        * m-sequent.h: No need for DKSTAT_HEADER_FILE.

1988-05-16  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * x11term.c: First include system headers, then config.h, then maybe
        undef FIONREAD and SIGIO, then read x11term.h which depends on them.

1988-05-15  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * keyboard.c (get_input_pending): Hold SIGIO around read_avail_input.

1988-05-14  Richard Stallman  (rms@lucky-charms.ai.mit.edu)

        * keyboard.c (init_keyboard): Call keyboard_init_hook if nonzero.
        * x11term.c (x_init_1): Move all keyboard-related inits here.
        (x_term_init): Don't call x_init_1; put it in keyboard_init_hook.

        * m-sun3.h, s-sunos4.h, s-bsd4-3.h: Delete DK_HEADER_FILE.
        * m-sequent.h: Change it to DKSTAT_HEADER_FILE.

1988-05-13  Richard Stallman  (rms@lucky-charms.ai.mit.edu)

        * xdisp.c (DoDsp): if pause, and window is partial-width,
        next redisplay must do all windows since preserve_other_columns
        may lack the data to work right if we just did scrolling.

1988-05-13  Chris Hanson  (cph@kleph)

        * m-hp9000s300.h: Conditionalize a couple of things on `__GNUC__'.

1988-05-12  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * xdisp.c (mark_window_display_accurate): Don't use XBUFFER on nil.

        * keyboard.c (keys_of_keyboard): Change ndefkey to defkey.
        * keymap.c (keys_of_keymap): Change ndefkey to defkey.

1988-05-10  Richard Stallman  (rms@corn-chex.ai.mit.edu)

        * sysdep.c: Define sigmask.

1988-05-06  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * Version 18.51 released.

        * process.c (Fdelete_process): Change status of proc to `signaled'.
        Then call change_msgs to run the sentinel.

        * m-sequent.h, m-sun3.h, s-sunos4.h, s-bsd4-3.h: Define DK_HEADER_FILE.

        * m-7300.h: Take out the Feb 11 change; umix!sendai!rich@rutgers.edu
        says it doesn't work.

1988-04-29  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * xdisp.c (DoDsp): Set clip_changed if Voverlay_... has changed.

1988-04-28  Chris Hanson  (cph@kleph)

        * s-hpux.h: Define HAVE_PTYS.  HP-UX has them and they work fine
        almost all of the time.  The one case where they would fail
        regularly (inferior Scheme) has been bypassed by using pipes.

1988-04-28  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * keyboard.c (Fsuspend_emacs): Do init_sys_modes via unwind protect.

        * fileio.c [VMS] (Fdefine_logical_name): Empty string value
        means delete the name.

1988-04-27  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * sysdep.c [VMS]: RAB's never a macro; let RAB$C_BID control rab.h.

        * sysdep.c [VMS] (sys_getenv): only if value of lib$sys_trnlog
        is exactly 1 does it mean it found something.

        * sysdep.c (creat_copy_attrs): Downcase remaining SYS$OPEN, SSY$CLOSE.

1988-04-25  Richard Stallman  (rms@lucky-charms.ai.mit.edu)

        * fileio.c (Fdo_auto_save): Ignore shrinkage if not visiting file.
        Wait only 1 second after shrinkage message.
        (Fset_buffer_auto_saved): Update the buffer's save_length.
        (auto_save_error): Mention buffer name in message.

        * buffer.c (Fswitch_buffer): Error if in minibuffer window.

1988-04-24  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * sysdep.c (sys_close): Define this only if INTERRUPTABLE_CLOSE.
        * s-usg5-3.h: Define INTERRUPTABLE_CLOSE.

1988-04-22  Richard Stallman  (rms@rice-krispies.ai.mit.edu)

        * sysdep.c (init_sys_modes) [VMS]: Undef _IOFBF so don't use setvbuf.

1988-04-20  Richard Stallman  (rms@rice-krispies.ai.mit.edu)

        * m-sun386.h: New file, for Roadrunner.

1988-04-19  Chris Hanson  (cph@kleph)

        * x11term.h, x11term.c, x11fns.c: Again (for the third time)
        abstract input blocking so these files compile on systems without
        SIGIO.

        * x11term.c (x_term_init): Comment out fatal error which prevents
        X11 interface from being used if interrupt_input is false.  This
        is unnecessary and untrue -- the interface works, but
        suboptimally.

1988-04-19  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * sysdep.c (sys_access) [VMS]: If arg is dirname, cvt to name as file.
        (sys_getenv): If arg is TERM, also look for TERM as logical name.

        * unexconvex.c: New file.

1988-04-18  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * emacs.c (main) [APOLLO]: Eliminate call to set_sbrk_size.

        * search.c (match_limit): Return nil for a paren-pair with no match.

1988-04-17  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * vmsfns.c (Fvms_system_info, Fshrink_to_icon): New functions.
        Former comes with many subroutines.

1988-04-16  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * x11term.c (updateline, write_chars): Restore sigmask at every return.
        (stufflines): Restore signal mask only once, at the end.

        * sysdep.c ({un,}request_sigio): SIGWINCH mask actions were backwards.
        Never change any other mask bit.

        * x11term.c (internal_socket_read): Initialize COUNT.

        * ymakefile (LIBX): /usr/X11/lib/oldX/liboldX.a becomes -loldX.

1988-04-14  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * fileio.c (auto_save_error): Print msg that there was an error.
        (Fdo_auto_save): If don't save a bfr because it has shrunk, print msg.

1988-04-13  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * s-umax.h: Define MAIL_USE_FLOCK (LaLiberte says so).

1988-04-10  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * fileio.c (Fdefine_dcl_symbol): Deleted.
        (Fdefine_logical_name): New function created.
        * sysdep.c (define_dcl_symbol): Deleted.
        (define_logical_name, delete_logical_name): New fns to make
        job-wide logical names.  "This is more useful for communicating with
        other processes, since when Emacs is run in a subprocess (as it
        usually is), the others see job-wide logical names, not DCL symbols)."

1988-04-09  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * ymakefile: If UNEXEC is defined, it specifies object file for unexec.
        * unexmips.c: New file contains MIPS unexec code, moved from unexec.c.
        * m-mips.h, m-iris4d.h: Define UNEXEC as unexmips.o.
        No longer need to define COFF.
        * unexenix.c, s-xenix.h: Likewise.
        * unexhp9ks800.h: New file; m-hp9000s800.h says to use.
        * unexec.c: Delete MIPS and Xenix code.

        * dired.c (file_name_completion) [VMS]: specbind completion-ignore-case
        to non-nil.

        * m-sequent.h: Define PTY_ITERATION, etc., for Dynix 3.0 pty names.

1988-04-08  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * unexec.c (EXEC_HDR_TYPE): New macro overrides `struct exec' if def.

        * unexec.c (DEFAULT_ENTRY_ADDRESS): Allow config to define this.
        * m-iris4d.h: Define it here, instead of IRIS4D conditional in unexec.

        * m-tek4300.h: New file.

        * fileio.c: doc fix.

1988-03-29  Richard M. Stallman  (rms@wilson)

        * ymakefile: Default LIBX10_MACHINE and LIBX11_MACHINE to null.
        Use them when defining LIBX.

        * xterm.c: On all USG, include sys/time.h.
        * xterm.c (XtFlash, flashback): Bodies conditional on ITIMER_REAL.
        * xterm.c (x_term_init): Call gethostname only if BSD or HPUX.
        * xterm.c (x_init_1): Don't mess with SIGIO if USG.

        * sysdep.c: Fix typo, USG_SYSTEM_DIR => SYSV_SYSTEM_DIR.
        Externally define sys_errlist, except on VMS.
        Don't include rab.h if RAB is already defined.

        * sysdep.c ({request,unrequest}_sigio) BSD4.2 version:
        Also block and unblock SIGWINCH if that's defined.

        * m-mips.h (XSETMARKBIT): New, test 2nd arg for only zero or nonzero.

        * s-usg5-3.h: #define close sys_close (like open, read, write).
        * sysdep.c: Undef `close', like `open'.
        * sysdep.c (sys_close): New function.
        All refs to close in sysdep.c renamed to sys_close.

        * sysdep.c (read_input_waiting): Call `read_socket_hook'.
        Define BUFFER_SIZE_FACTOR as in keyboard.c.

        * sysdep.c (dup2): Alternate defn #ifdef F_DUPFD.

1988-03-27  Richard M. Stallman  (rms@wilson)

        * process.c [CYDRIX]: Include sys/tiuser.h; don't include pty.h.

        * process.c (pty): Don't do ioctl FIONBIO if not defined.
        New macros PTY_ITERATION, PTY_NAME_SPRINTF and
        PTY_TTY_NAME_SPRINTF customize how to test all pty names.

        * unexec.c (make_hdr): DATA_SECTION_ALIGNMENT, new, acts like
        SECTION_ALIGMENT, but for data section only.

        * callproc.c (init_callproc): Cvt dirname to filename for `access'.
        * lread.c (init_read): Likewise.  These used to lose on VMS.

        * dired.c (file_name_completion) [VMS]: READFUNC is a ptr, not a fcn.

1988-03-24  Richard M. Stallman  (rms@wilson)

        * sink.h, sinkmask.h: Don't declare the array static.
        * xfns.c: Make sink_bits and sink_mask_bits extern;
        don't include sink.h and sinkmask.h here.
        Define macros sign_width, etc.

        * xterm.c (writechars, dumprectangle): Flush `if (PhysScreen)', etc.,
        since an array is always nonzero as a pointer.

        * filelock.c: Include config.h after sys/stat.h so can undef S_IFLNK.

        * sysdep.c (sys_suspend): Use BSD, not SIGTSTP, as cond. for killpg.

        * dispnew.c (init_display): Set Vwindow_system to `x' for X11.
        * xterm.c, x11term.c (x_term_init): Set `window-system-version'
        to 10 or 11.

        * dispnew.c (update_screen): If cursor_in_echo_area is negative,
        put cursor at left margin in echo area.

        * fns.c (Fy_or_n_p): Make cursor_in_echo_area -1 when echoing response.
        Don't alter cursX.

1988-03-23  Richard M. Stallman  (rms@wilson)

        * x11term.h: Use X11/ not X/ for dir of include files.
        * xmenu.c: Likewise, in the X11 case.

        * m-7300.h: Fix unterminated comment near end.

        * s-xenix.h: Define n_zeroes so usage of struct nlist in fns.c works.

        * term.c (fatal): Do fflush(stderr).

        * sink11.h, sink11msk.h: New files.

        * x11term.h: Define CLASS here.
        Don't define X11 since this is included only if X11.

        * x11term.c: Use sink11.h and sink11msk.h, not sink.h and sinkmask.h.
        Don't define CLASS.  Delete everything about BIGDEBUG.
        Delete everything pertaining to read_events_block.
        (XXidentity): now global.
        (CursorOutline): New var; nonzero means cursor is hollow.
        (XXicon_usebitmap): New var; nonzero means use bitmap icon.
        (XTset_terminal_modes, ClearCursor): Set CursorOutline.
        (XTflash, flashback): Combine into one function; use `select' to wait.
        (CursorToggle): Handle CursorOutline.
        (internal_socket_read): Delete 3rd arg, and code that handles it.
        Handle MappingNotify events.
        Handle EnterNotify and LeaveNotify (change solid to outline cursor).
        (XT_GetDefaults): If asked for .BodyFont, look for .Font also.
        (x_term_init): Init XXicon_usebitmap; strip dirs from `progname'.
        Handle -i switch.  Handle -geometry like -w.
        (XT_Set_WM_Hints): Obey XXicon_usebitmap.
        (XInitWindow): Use `fatal' for fatal error messages.
        Init CursorOutline.  Ask for EnterNotify and LeaveNotify events.

        * x11fns.c (Fx_get_default): Use XXidentity.  Clean up docstring.

        * sysdep.c [VMS] (input_wait_timeout, wait_for_kbd_input):
        Use detect_input_pending, not get_input_pending.

        * process.c (wait_reading_process_input):
        Use only detect_input_pending to check for pending kbd input.
        (That `select' saw something on channel 0 doesn't mean it is
        kbd input; it could be an expose event.)

        * keyboard.c (read_avail_input) [FIONREAD]:  Now static.
        New arg specifies value of NREAD;
        if it is nonzero, don't call get_input_pending to get it.
        Use kbd_buffer_store_char to put chars into kbd_buffer.
        Always abort if kbd_count is nonzero at start.
        Don't call {set,clear}_waiting_for_input.

        (get_input_pending): Now static.
        Return immediately if kbd_count > 0 or if Vquit_flag is non-nil.
        If FIONREAD and not interrupt_input and read_socket_hook,
        call read_avail_input to see how much pending input is really
        kbd characters; don't say we have some if an expose event is pending.

        * dispnew.c (init_display): Check result of egetenv for emptiness
        as well as nullness.

1988-03-21  Richard M. Stallman  (rms@wilson)

        * alloca.s [WICAT]: Don't clobber a2.  Return value in a0 and in d0.

1988-03-20  Richard M. Stallman  (rms@wilson)

        * crt0.c (errno): Don't initialize it -- put it in bss space.
        [M68K]: Define splevel% with `comm' -- put it in bss space.

        * sysdep.c [MISSING_UTIMES]: Define `utimes' as a no-op.
        * s-hpux.h: Define MISSING_UTIMES.

        * buffer.c (Fbuffer_local_variables): The buffer's alist can be out
        of date for a non-current buffer, so call Fsymbol_value to make
        the alist up to date.

        * sysdep.c [VMS] (end_kbd_input): If ast_active, don't clobber
        any global variables.

        * ymakefile (alloca.o): Copy sed output to a .s file and use cc
        to run the assembler.  I hear Xenix can't run it directly.

        * sysdep.c [XENIX]: Undefine TIOCGETC.

        * s-xenix.h: Undefine NLIST_STRUCT.  Put `_' in defn of LDAV_SYMBOL.
        Define HAVE_SYSVIPC.

        * m-intel386.h [XENIX] (LIB_STANDARD): Add /lib/386/Slibcfp.a.
        [XENIX] (FSCALE): Define it.
        [XENIX] (C_ALLOCA): Undefine it.

        * alloca.s: Define alloca for Xenix.

1988-03-19  Richard M. Stallman  (rms@wilson)

        * keyboard.c (read_avail_input): If `read' gives EAGAIN,
        kbd_count should be 0.  Can happen on V.3.

        * x11fns.c (Vxterm1): Delete this variable, and lisp var `xterm'.
        (syms_of_xfns): If CANNOT_DUMP and not `noninteractive',
        init_display has already set up Vxterm, so don't init it here.
        * display.c (syms_of_display): Likewise for Vwindow_system.
        (init_display): Always set Vwindow_system.

1988-03-18  Chris Hanson  (cph@kleph)

        * m-hp9000s300.h: Add a definition for C_SWITCH_MACHINE which is
        needed to compile the X11 interface files.

        * s-hpux.h, m-hp9000s300.h, m-hp9000s800.h: Version 6.01 of HP-UX
        (on 300 machines only) implements symbolic links and supplies BSD
        procedures like `bcopy' and `index' as part of the BSD library.
        Move definitions which depend on these features from the s- file
        to the m- files, and conditionalize the features based on a flag.

1988-03-18  Richard M. Stallman  (rms@wilson)

        * scroll.c (calculate_scrolling): Abort if ->insertcount
        is out of range.

        * sysdep.c (getwd for USG): Don't define it if HAVE_GETWD.
        * m-stride.h: Define HAVE_GETWD.

        * buffer.c (init_buffer): If `getwd' fails, it's a fatal error.

        * ymakefile (MAKE_PARALLEL): New name for PARALLEL, and now
        a cpp macro, not a Make variable.  Defaults to empty.
        * m-sequent.h: Define MAKE_PARALLEL.

        * xdisp.c (display_text_line): Handle the overlay arrow last of all,
        and update line->length for the space it uses.

        * xmenu.c: Conditionals for X11, using new macro X11ONLY.
        Currently named x11menu.c until someone tests it.
        * ymakefile: Handle HAVE_X_MENU and use xmenu.o, even if X11.
        * x11term.h: Define BLOCK_INPUT, UNBLOCK_INPUT, BLOCK_INPUT_DECLARE.

        * Makefile: Set $(MAKE), since some Make versions don't have it.
        (xmakefile): Delete lines that are just one OR MORE whitespace
        chars.  Use \t to represent the tab in the `sed' command.

        * fileio.c (Finsert_file_contents) [APOLLO]: Do another `stat'
        after closing the file.  Gets around kernel bug (in `fstat'?).

        * fileio.c (Fwrite_region) [ALLIANT]: Don't do `fsync'; kernel bug.

        * sysdep.c (sys_suspend): If forking shell, call close_process_descs.

1988-02-13  Richard Stallman  (rms@sugar-smacks.ai.mit.edu)

        * Version 18.50 released.

        * sysdep.c [VMS]: Remove VMS4_6 conditional on execvp & rename
        since s-vms.h is set to make us use our own definitions of these.
        Make execvp call `error' instead of `croak'.

        * s-vms.h: PURESIZE 132000.
        * m-sun2.h: Likewise (for HAVE_SUN_WINDOWS).

1988-02-11  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * callproc.c (child_setup): Call close_process_descs
        if can have subprocesses.  Close the argument-descriptors
        after copying them to 0, 1 and 2.

        * callproc.c (Fcall_process): After fork, in subprocess,
        explicitly close Emacs's end of the pipe.  Don't bother calling
        set_exclusive_use.

        * process.c (close_process_descs): Close all descriptors
        that are talking to subprocesses.  Called from a new subprocess.

        * process.c (create_process): Don't bother calling set_exclusive_use
        since close_process_descs now closes Emacs's side of a pipe or pty.

        * x11term.c, x11fns.c, x11term.h: New files from rfrench@athena.mit.edu
        In x11term.c, the function `read_events_block' has been `if 0'd
        and so have all calls to it.  A call in wait_reading_process_output
        was not added, and a call to internal_read_socket in
        get_input_pending was not added.

        * emacs.c (main) [HAVE_X_WINDOWS]: Set xargv, xargc for xterm.c.

        * dispnew.c (init_display) [X11]: Set Vwindow_system to `x11'.

        * s-hupx.h: Define HAVE_SYSVIPC.
        Should s-usg*.h define this too?

        * dir.h: Some union types were missing levels of struct inside them.

        * alloc.c (Fpurecopy): If not purifying, do nothing.

        * editfns.c (init_editfns): Record system name even if dumping.

        * eval.c (Fcondition_case): Inverted endtest in handler validate loop.

        * m-7300.h: Define SEGMENT_MASK, SECTION_ALIGNMENT
        and pass the -z switch to ld.  kenobi!ford@bass.nosc.mil says so.

1988-02-09  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * unexec.c: Merge gb's code for Xenix.

        * m-intel386.h: Add conditionals for Xenix.
        * s-xenix.h: New file.

        * cm.h: Make the bit-fields unsigned.

1988-02-08  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * sysdep.c (init_sys_modes) [USG]: Set C-g for VQUIT as well as VINTR.
        This was formerly done only on HPUX, and worked there.
        It appears that all sysV is like HPUX in that CDEL does not
        really turn off the signal--it makes Meta-DEL cause the signal!

        * process.c (wait_reading_process_output): Change the test on
        read_kbd to avoid losing on 80386 Xenix.

1988-02-06  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * xdisp.c (Voverlay_arrow_string, Voverlay_arrow_position):
        New variables specifying a string to overlay on the buffer text
        and a place to put it.
        * xdisp.c (display_text_line, redisplay_window, DoDsp):
        Handle these variables.

1988-02-04  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * insdel.c (prepare_to_modify_buffer):
        If CLASH_DETECTION is disabled, verify the modtime here
        since it won't be done via lock_file.

1988-01-31  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * fileio.c (Fcopy_file): Report error in `write'.

1988-01-29  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * eval.c (unbind_to): Recompute loop end-test from `count' each time
        since an unwind-protect function can use realloc to grow the specpdl.

1988-01-26  Richard Stallman  (rms@frosted-flakes.ai.mit.edu)

        * sysdep.c (vms_truncate) [VMS]: New fn to truncate a file.

        * fileio.c (Fwrite_region) [VMS]: If writing auto-save file,
        truncate any existing file.

        * s-vms.h: Rename `rename', `execvp' and `system' so we don't
        use the VMS-library versions of it.

1988-01-22  Richard Stallman  (rms@frosted-flakes)

        * m-ibmrt.h: Add some AIX conditionals; output on BSD should
        be unchnged.  Perhaps will now run on AIX.

1988-01-21  Richard Stallman  (rms@frosted-flakes)

        * keyboard.c (command_loop): Exit here for noninteractive eof.
        * keyboard.c (kbd_buffer_get_char): Don't exit here.

1988-01-20  Richard Stallman  (rms@frosted-flakes)

        * lread.c (openp): Reject directories even if !exec_only.

        * window.c (Fset_window_configuration): When keeping window's
        old buffer, make sure its start and pointm are valid.

1988-01-19  Richard Stallman  (rms@frosted-flakes)

        * sysdep.c (sys_suspend) [SIGTSTP]: Use killpg and getpgrp to stop
        all processes in same pgrp with Emacs.

        * syntax.c (Fparse_partial_sexp): Add 7th elt to STATE arg and value,
        describing minimum depth encountered during the scan.

1988-01-18  Richard Stallman  (rms@frosted-flakes)

        * alloca.s: Change some as-style comments to C-style comments
        so cccp won't be confused by stray singlequotes.

        * s-iris3-{5,6}.h: Move the #defines of long-named functions
        into m-irist.h.

        * lread.c (init_read): Warn if dirs in PATH_LOADSEARCH don't exist.
        * callproc.c (init_callproc): Warn if Vexec_directory doesn't exist.
        * emacs.c (main): Call init_callproc before changing terminal modes.

        * xdisp.c (try_window_id): When computing ep, watch out for
        invisible lines that follow the newline after the last change.

        * window.c (Fset_window_point): Now works ok on selected window.

1988-01-17  Richard Stallman  (rms@frosted-flakes)

        * eval.c (Fdefconst, Fdefvar) doc fix.

        * keymap.c (Fcopy_keymap): Several stupid errors.

        * dired.c (file_name_completion): Wasn't calling readdir
        for Unix; was doing so (instead of readfunc) on VMS.
        * dired.c (Fdirectory_files): Don't call NAMLEN if dp is 0.

1988-01-16  Richard Stallman  (rms@frosted-flakes)

        * alloc.c (syms_of_alloc): Eliminate vars data-bytes-{free,used}.
        They lose because values are over 24 bits.

        * lread.c (read_list): delete `register' for val and tail.
        * buffer.c (Fkill_buffer): delete `register' for buf and bufname.
        * fns.c (Fy_or_n_p): delete `register' for xprompt.
        * keymap.c (Fcopy_keymap): missing paren.

1988-01-15  Richard Stallman  (rms@frosted-flakes)

        * m-iris4d.h: Changes to support dumping.
        * m-*.h: Doc fix for VIRT_ADDR_VARIES.

        * unexec.c: Minor changes to mips code for IRIS_4D.

1988-01-11  Richard Stallman  (rms@frosted-flakes)

        * s-iris3-{5,6}.h: Don't #undef SIGIO.  BROKEN_FIONREAD makes it unnec.
        * process.c [IRIS]: Find sysmacros.h in sys/.

1988-01-09  Richard Stallman  (rms@frosted-flakes)

        * doprnt.c: New arg NARGS says how many args there are in ARGS.
        Give an error if the string tries to use more than that many.

        * callint.c (Fcall_interactively): Pass new arg to `doprnt'
        * editfns.c (Fformat, format1):
        * xdisp.c (message):

1988-01-07  Richard Stallman  (rms@frosted-flakes)

        * lread.c (init_obarray): Split the stmt `hash =' to avoid
        a VACX bug.

        * alloca.s [pyramid]: Keep sp a multiple of 32.
        This preserves cache-block alignment.

1988-01-06  Richard Stallman  (rms@frosted-flakes)

        * s-hpux.h: Don't define nomultiplejobs, LDAV_SYMBOL, LIBS_DEBUG
         or BROKEN_FIONREAD.
        * m-hp9000s300.h: Define those four.
        * s-hpux.h: Define BSTRING, and define bcopy, etc., as macros.

        * sysdep.c [NEED_BSDTTY]: Include bsdtty.h.
        (Flag is defined in m-hp9000s800.h)

        * m-hp9000s800.h: New file.
        * m-hp9000s300.h: New name for m-hp9000.h.

        * sysdep.c: Split TIOCGLTC conditional into two, one on TIOCGETC.

        * search.c (search_buffer): Avoid & of array static_BM_tab.

        * alloca.s, crt0.c: Change hp9000 conditionals to hp9000s300.

1987-12-22  Richard Stallman  (rms@frosted-flakes)

        * alloca.s [WICAT]: Keep sp pointing at lowest word in use.

1987-12-17  Richard Stallman  (rms@lucky-charms)

        * unexec.c (make_hdr): Don't add A_TEXT_OFFSET to a_text
        in the NO_REMAP case (when a_text comes from the old header).

        * filelock.c: If no symlinks, use `stat' instead of `lstat'.

1987-12-14  Richard Stallman  (rms@frosted-flakes)

        * fileio.c (Fsubstitute_in_file_name): Allow underscore
        in an env var name.

1987-12-09  Richard Stallman  (rms@frosted-flakes)

        * indent.c (Findent-to): Interactive code `N' instead of `n'.

        * sysdep.c (execvp, rename): Omit these fns if VMS4_6.

        * lread.c (oblookup): Split a statement to avoid VMS compiler bug.

1987-12-04  Richard Stallman  (rms@frosted-flakes)

        * data.c (sign_extend_temp): Moved from sysdep.c.
        * data.c (sign_extend_lisp_int): Function to do sign-extend;
        needed on some machines.

        * keymap.c (Fcopy_keymap): Copy subkeymaps recursively.

        * fileio.c (Fread_file_name): Don't crash if no env var HOME.

1987-12-03  Richard Stallman  (rms@frosted-flakes)

        * m-convex.h: New file.

1987-12-02  Richard Stallman  (rms@frosted-flakes)

        * process.c (wait_reading_process_input):
        Don't set time_limit to -2; leave it as -1.

        * s-usg5-3.h, m-intel386.h: New files.

1987-12-01  Richard Stallman  (rms@frosted-flakes)

        * process.c: Support for SYSV_PTYS.

        * dired.c: New macros DIRENTRY and NAMLEN; support for sysV.3.
        * sysdep.c: `closedir' function for sysV.3.

        * crt0.c: Add code for Sun 4.
        * m-sparc.h: New file.

        * lread.c (read_list): Fix error message for ] in a list.

        * fileio.c (Ffile_symlink_p): Call Fexpand_file_name.

1987-11-21  Richard Stallman  (rms@frosted-flakes)

        * print.c: Clean up doc string syntax and fix doc error for `print'.

1987-10-31  Richard Stallman  (rms@sugar-smacks)

        * editfns.c (Fformat): Realize doprint %-specs can contain - and space.

1987-10-30  Richard Stallman  (rms@sugar-smacks)

        * fns.c (Fy_or_n_p): Don't try to DOWNCASE -1.

1987-10-29  Richard Stallman  (rms@frosted-flakes)

        * fns.c (Fy_or_n_p): Protect `prompt' and `xprompt' from gc.
        * fns.c (Fyes_or_no_p): Protect `prompt' from gc.
        * lread.c (read_list): Protect `val' and `tail' from gc.
        * buffer.c (Fkill_buffer): Protect `buf' and `bufname' from gc.
        * fileio.c (barf_or_query_if_file_exists): Protect `absname'.

1987-09-17  Richard M. Stallman  (rms@prep)

        * Version 18.49 released.

        * window.c (set_window_width):
        Set windows_or_buffers_changed.

        * scroll.c (calculate_scrolling): Initialize insertcount
        of top edge cells to zero.

        * dired.c (file_name_completion): Rearrange VMS conditionals
        so that `readfunc' exists only on VMS.  Apollo compiler
        couldn't deal with it.

1987-09-16  Richard M. Stallman  (rms@prep)

        * m-sun2.h, m-sun3.h: Doc fix.

        * sysdep.c (reset_sys_modes): Don't output anything
        if have a read_socket_hook (i.e. under X).

1987-09-10  Richard M. Stallman  (rms@prep)

        * buffer.c (Fget_buffer_create): Test of mode-class property
        of buffer's major mode was backwards.

1987-09-07  Richard Mlynarik  (mly@prep)

        * dired.c (file_name_completion):
        Only filter `leaves' of filesystem structure with
        completion_ignored_extensions -- don't eliminate directories.
        If Vcompletion_ignored_extensions isn't a proper list, don't
        eliminate all filenames.

        * xterm.h (UNBLOCK_INPUT_RESIGNAL):
        RESIGNAL_INPUT, not INPUT_RESIGNAL

1987-08-30  Richard M. Stallman  (rms@prep)

        * Version 18.48 released.

        * xmenu.c (XEmacsMenu): Rename `sel' to `selidx'.

        * unexec.c: Remove the CANNOT_UNEXEC code.
        * m-apollo.h: Switch back to CANNOT_DUMP.

        * emacs.c (Fdump_emacs): Don't call malloc_init if SYSTEM_MALLOC.
        * emacs.c (main): ditto.

1987-08-20  Richard M. Stallman  (rms@prep)

        * fileio.c (Fwrite_region) [VMS]: Move gap to the closest place
        (first newline after old gap).

1987-08-15  Richard M. Stallman  (rms@prep)

        * editfns.c (init_editfns): Handle getpwuid returning 0.

1987-08-14  Richard M. Stallman  (rms@prep)

        * casefiddle.c (casify_region): Use prepare_to_modify_buffer.
        Don't call modify_region until the end.

        * sysdep.c (reset_sys_modes): Output a bare CR
        so kernel can track the cursor hpos.

1987-07-30  Richard M. Stallman  (rms@prep)

        * vmsfns.c (Fsetprv): Correct spelling SS$NORMAL => SS$_NORMAL.
        Include <ssdef.h>.

1987-07-29  Richard Mlynarik  (mly@prep)

        * lread.c (init_read): Initialise load_in_progress.

1987-07-28  Richard M. Stallman  (rms@prep)

        * vmsfns.c (Fsetprv): Detect error from sys$setprv properly.
        Add some privileges missing from the table.

1987-07-27  Richard M. Stallman  (rms@prep)

        * sysdep.c (creat_copy_attrs): Flush duplicate `else'.

1987-07-25  Richard M. Stallman  (rms@prep)

        * dispnew.c (update_screen): Use PENDING_OUTPUT_COUNT
        in all appropriate places.
        Fix a comment delimiter typo.

1987-07-24  Richard M. Stallman  (rms@prep)

        * keyboard.c (command_loop_1): Don't do direct output
        if DoDsp is needed to erase a minibuffer message.

        * keymap.c (describe_alist, describe_vector):
        1. Output only one blank line in a row if multiple empty keymaps.
        2. Chase through indirect keymap elements.

        * keymap.c (describe_map_tree): Handle Flookup_key returning int
        so C-x 4 bindings appear in the output.

        * sysdep.c (sys_creat for VMS): Get all args via varargs,
        no named args, to avoid incompatible change in VMS C.

1987-07-18  Richard M. Stallman  (rms@prep)

        * unexec.c (make-hdr): Split the stmts that use ADDR_CORRECT
        into two stmts.  Some compilers mysteriously barf on them.

        * m-7300.h: Remove ADD_CORRECT (s-usg5-2.h does it).
        Add LD_SWITCH_MACHINE and SWITCH_ENUM_BUG.

        * m-amdahl.h: define STACK_DIRECTION.

        * sysdep.c (random for VMS): subtract 1<<30, not 1<<14.

        * fns.c (Fvconcat): Doc fix.

        * window.c (Fcurrent_window_configuration): Doc fix.

        * sysdep.c [VMS]: include file.h.
        * sysdep.c (creat_copy_attrs) [VMS]: Minor fixes to prevent
        invalid acL if there was no old version.

        * dispnew.c (PENDING_OUTPUT_COUNT): New macro to get # chars
        buffered in a stdio output stream.
        * dispnew.c (update_screen): Use that macro.
        Remove #ifndef VMS around the sleep when buffer is full.
        * s-vms.h: Define nonstandard PENDING_OUTPUT_COUNT for VMS use.

        * fileio.c (file_name_as_directory) [VMS]:  Fix 3rd arg to strncmp.

1987-07-17  Paul Rubin  (phr@prep)

        * m-sun2.h: Add comment explaining that filename refers to
        the OS version, not the CPU model number.  People running
        SunOS 3.2 on Sun 2 computers have been erroneously trying to
        use this file, and losing.

1987-07-10  Chris Hanson  (cph@prep)

        * xterm.h: Define macros to abstract control of input signals.
        Alternate set of macros for hp-ux does no signalling.

        * xterm.c:
        * xfns.c:
        * xmenu.c:
        Rewrite to use new input signal macros.  Add conditionalizations
        for hp-ux, mostly to eliminate references to `ButtonReleased' (I
        don't know why, this is from wizards at HP Labs).  Change
        "xmenu.c" to eliminate unused include files, and reorder the
        include files so that it compiles under hp-ux.

1987-06-29  Richard M. Stallman  (rms@prep)

        * fileio.c (Fwrite_region) [VMS]: Use creat_copy_attrs.

        * sysdep.c (creat_copy_attrs) [VMS]: New function: open a file
        for writing, copying attributes from another file.

        * fileio.c (Ffile_writable_p): Exchange with Ffile_symlink_p.
        Avoids mysterious cpp lossage on RT/PC.

        * syntax.c: Disguise doc string of non-existent Lisp variable
        `standard-syntax-table'.

1987-06-25  Richard M. Stallman  (rms@prep)

        * callproc.c (Fcall_process): On VMS, use NLA0: instead of /dev/null.

        * term.c (term-init):
        Don't use "nl" cap on VMS if it's a linefeed.

1987-06-23  Richard M. Stallman  (rms@prep)

        * sysdep.c (sys_creat) [VMS]: Use va_start, not va_start_1.

        * sysdep.c (rename) [VMS]: Use SYS$RENAME not LIB$RENAME_FILE.

1987-06-18  Richard M. Stallman  (rms@prep)

        * sysdep.c (readdirver) [VMS]: Don't return bogus version number.
        Don't lose stepping off end of directory entry.
        Eliminate superfluous loop.

        * fileio.c (file-name-as-directory) [VMS]:
        Never append a slash.  Fix erroneous return-with-no-value.

        * dired.c (file_name_completion): For VMS, upcase the input.

        * fns.c (Frandom): Doc fix.

        * sysdep.c (random) [USG]: Subtract 1<<14 from value of rand()
        so value range is centered on zero.
        * sysdep.c (random) [VMS]: Likewise, and remove the code to
        initialize the seed.  Higher levels call srandom if seed should be set.

1987-06-15  Richard M. Stallman  (rms@prep)


        * fileio.c (Fwrite_region) [VMS]: Use `creat' to create
        an auto-save file.
        * Version 18.47 released.

        * fileio.c (Fwrite_region): Check result from fsync.

1987-06-12  Chris Hanson  (cph@prep)

        * terminfo.c (tparam): Handle the outstring == 0 case by
        allocating a result of the correct size.

1987-06-12  Richard M. Stallman  (rms@prep)

        * terminfo.c (tparam): Kludge the outstring == 0 case.
        Accept (and ignore) the buffer-length argument.

        * s-iris3-5.h: Remove defines of IRIS35 and PURESIZE.

        * fileio.c (Fwrite_region) [VMS]:
        Write under temp name and rename, to avoid auto-deletion
        if writing fails.  When moving gap to avoid extra newline,
        move it only to the next newline.

1987-06-10  Richard M. Stallman  (rms@prep)

        * minibuf.c (Ftry_completion, Fall_completions):
        GCPRO some strings when calling predicate.

        * fileio.c (file_name_as_directory) [VMS]:
        Recognize .dir in uc or lc and followed by either .1 or ;1.
        * fileio.c (directory_file_name) [VMS]:
        Append .DIR.1 in upper case.
        * fileio.c: Delete calls to lower_case.
        * fileio.c: #ifndef VMS around decls or errno, sys_errlist, etc.

        * sysdep.c (getwd for VMS): Upcase the filename.
        * sysdep.c (lower_case): Delete this function and all calls.

        * dired.c (file_name_completion): Obey completion-ignore-case
        by using scmp instead of bcmp.

1987-06-09  Richard M. Stallman  (rms@prep)

        * syntax.c: (scan_lists): Clear mathexit on 2nd math-char in a pair.

1987-06-08  Richard M. Stallman  (rms@prep)

        * Version 18.46 released.

        * m-apollo.h: Define CANNOT_UNEXEC instead of CANNOT_DUMP.

        * keyboard.c (get_char): Delete DEBUG-conditional code.
        * process.c: Delete the IRIS ignore-SIGIOT kludge.

        * sysdep.c: Declare sign_extend_temp regardless of machine type.

        * sysdep.c (sys_access) [VMS pre 4.4]: Don't zero uic.
        * sysdep.c (sys_access_reinit): New fn, called from
        init_sys_modes, to clear uic.

        * eval.c (grow_specpdl): Don't subtract old specpdl address
        from new one; they are in different arrays.
        Use correct args to Fsignal when reporting overflow.

        * process.c (Fopen_network_stream): Don't create process object
        until opens, etc. have succeeded.

1987-06-08  Chris Hanson  (cph@prep)

        * keyboard.c (read_avail_input): use `read_socket_hook' if it has
        a value.  This is required in hp-ux if `HAVE_X_WINDOWS' is
        defined.

        * process.c (wait_reading_process_input): conditionalize `select'
        call for hp-ux.

1987-06-08  Richard M. Stallman  (rms@prep)

        * m-isi-ov.h: Cut SEGMENT_MAST in half.  crl@purdue says so.

1987-06-06  Richard M. Stallman  (rms@prep)

        * tparam.c: Ifdef emacs, include config.h.

1987-06-05  Richard M. Stallman  (rms@prep)

        * m-apollo.h: Add #undef BSTRING.

        * dispnew.c, keyboard.c: On VMS, don't include sys/ioctl.h.

        * process.c (create_process): On IRIS, set forkin, forkout to -1
        instead of opening them.  Then don't use them later if they are -1.

        * process.c (Fopen_network_stream): Allow integer as 4th arg
        to specify foreign port number.

1987-06-03  Richard M. Stallman  (rms@prep)

        * m-amdahl.h: Add definitions of LD_SWITCH_MACHINE, EXEC_MAGIC,
        SEGSIZ and SEGMENT_MASK.  Turn on C_ALLOCA.  From Jishnu Mukeji.

        * eval.c (Fapply): Add missing parens in args to alloca;
        args were too small.  From Jishnu Mukeji.

1987-06-01  Richard M. Stallman  (rms@prep)

        * version 18.45.

        * fileio.c (Finsert_file_contents): Always initialize fd.

1987-05-31  Richard M. Stallman  (rms@prep)

        * fileio.c: Move declarations of errno and friends to top of file.
        * filelock.c: Likewise.

1987-05-29  Richard M. Stallman  (rms@prep)

        * process.c: #end => #endif.

1987-05-27  Richard M. Stallman  (rms@prep)

        * fileio.c (Fexpand_file_name) [VMS]:
        Upcase all file names, not just absolute ones.  Use Fupcase.

1987-05-26  Richard M. Stallman  (rms@prep)

        * fileio.c (Fdirectory_file_name) [VMS]:
        Fix to expansion of VMS logical names.

        * crt0.c [ISI68K]: Define asm sym isi68020.

        * xdisp.c (display_string): Use current buffer's tab_width.
        (display_text_line): Simplify XBUFFER (w->buffer) to bf_cur.

1987-05-23  Richard M. Stallman  (rms@prep)

        * alloc.c (init_alloc-once): Don't set Vpurify_flag.
        * lread.c (init_obarray): Do it here, now that Qt is valid.

1987-05-22  Richard M. Stallman  (rms@prep)

        * m-targon31.h: Undefine VIRT_ADDR_VARIES.

        * vmspaths.h: Convert to VMS syntax and upper case.

        * lread.c (absolute_filename_p) [VMS]: '[' and '<' don't
        make a pathname absolute.

1987-05-21  Richard M. Stallman  (rms@prep)

        * xterm.c (x_term_init): Don't set Vxterm and Vxterm1.
        * xfns.c (syms_of_xfns): Don't set Vxterm and Vxterm1.
        Delete Lisp variable `xterm'.
        * dispnew.c (init_display): Initialize Vxterm to t or nil.

        * keyboard.c (interrupt_signal): Check Vwindow_system
        instead of Vxterm.

        * sysdep.c (sys_access for VMS pre 4.4):
        Turn on call to vmserrstr.
        * sysdep.c (vmserrstr) [VMS]: Define this function.

        * process.c (create_process) [IRIS]:  Don't open the pty's tty
        in the parent process.  Open only once, in the child.

        * xdisp.c (redisplay_window): If window-start points nowhere,
        recenter the window to avoid a crash.

        * fileio.c (Fwrite_region): Check for error from the close.
        NFS reportedly can report out-of-space there.

1987-05-18  Richard M. Stallman  (rms@prep)

        * fileio.c (Fwrite_region): Always stat after the close.

        * term.c (term_init): Spurious ' in error msg.
        * cmds.c (SelfInsert): For newline, must auto-fill
        before inserting it.

        * keyboard.c (BROKEN_FIONREAD): config.h can #define this
        to cause FIONREAD to be #undef'd.
        * s-iris3-5.h, s-hpux.h: Define BROKEN_FIONREAD.

        * indent.c (compute_motion): Typo in defn of HPOS.

1987-05-17  Richard M. Stallman  (rms@prep)

        * term.c: Pass 0 for buffer and length to tparam,
        record the value returned as buffer to use, and free it later.
        Each caller was changed.

        * tparam.c (tparam): Take buffer length additional arg.
        Malloc a buffer if that buffer is too small.
        Return address of buffer actually used.
        Add * and / as arithmetic operators.

        * xdisp.c (message): Handle NO_ARG_ARRAY for call to doprnt.

1987-05-16  Richard M. Stallman  (rms@prep)

        * m-isi-ov.h: Define LIB_STANDARD to avoid bad interaction with
        crt0 in ISI system 3.07.

        * fileio.c (Ffile_name_as_directory) [VMS]: Special handling
        for foo:[000000] where foo is a logical name.

1987-05-13  Richard M. Stallman  (rms@prep)

        * fileio.c (Fread_file_name) [VMS]: Bind completion-ignore-case to t.
        * fileio.c (Fexpand_file_name) [VMS]: Upcase letters in filenames.

        * sysdep.c (sys_access for VMS < 4.4):
        Always get `uic' from the system.

        * sysdep.c: New macro SETOSPEED to set the ospeed value
        in a terminal-info structure.  Definitions for USG and BSD.
        Used in init_baud_rate.

1987-05-12  Richard M. Stallman  (rms@prep)

        * search.c (skip_chars, Fstring_match, scan_buffer):
        Set immediate_quit over the scanning loops.

        * vmspaths.h: Remove the comma from the load path.
        Search only the standard directory.

        * sysdep.c (sys_suspend): Delete spurious `*' from
        declaration of `sigio'.

1987-05-12  Chris Hanson  (cph@prep)

        * regex.c (re_compile_fastmap):
        Fix typo where `notsyntaxspec' neglected to look at its argument
        byte, comparing with randomness.

1987-05-12  Richard M. Stallman  (rms@prep)

        * sysdep.c (sys_access for VMS pre 4.4):
        Fix typo of `file' where `filename' was meant.
        Avoid using `vmserrstr' since it's not defined.

        * fileio.c (Finsert_file_contents):
        On VMS, st.st_size > num_chars_read.
        Use num_chars_read for the return value.

        * cmds.c (SelfInsert): New 2nd arg, nonzero says don't
        do auto fill.
        * cmds.c (Fself_insert_command, Fnewline):
        Pass nonzero to SelfInsert if have prefix arg.

        * minibuf.c (Fself_insert_and_exit): 0 as 2nd arg to SelfInsert.
        * keyboard.c (command_loop_1): likewise.

1987-05-11  Richard M. Stallman  (rms@prep)

        * keyboard.c, s-hpux.h, s-iris3-5.h:
        Eliminate the hpux/iris conditional from keyboard.c.
        Now the s- files do #undef FIONREAD.

        * buffer.c (Fkill_buffer): Do nothing rather than kill
        the sole remaining buffer.  Prevent quits during actual killing.

1987-05-05  Richard Mlynarik  (mly@prep)

        * m-irist.h:  New version from raible@orville.arpa
        * s-iris3-5.h:  New file.  (s-usg5-2 with additions)

        * keyboard.c:
        IRIS, like HPUX, #defines but does not implement FIONREAD.

        * window.c, keyboard.c, sysdep.c:
        Remove some unused local variables.

1987-05-04  Richard M. Stallman  (rms@prep)

        * dired.c (Ffile_attributes): Doc fix.

        * term.c (term_init): Mention `unsetenv TERMCAP' in
        error message for invalid TERM variable.

1987-04-27  Richard Mlynarik  (mly@prep)

        * fileio.c (APOLLO from lnz):
        Fcopy_file, Fset_file_modes: Don't use un*x modes if
        env var USE_DOMAIN_ACLS is set.
        Fset_file_modes: utimes fix.
        Finsert_file_contents:  Must do fstat after open for Apollo.

        * emacs.c (main): (APOLLO from lnz):
        Don't use un*x modes if env var USE_DOMAIN_ACLS set.

1987-04-25  Richard Mlynarik  (mly@prep)

        * unexec.c:
        CANNOT_UNEXEC Code from lnz (from rps@apollo).
        Similar to vmsmap.c.

        * sysdep.c: (APOLLO from lnz)
        init_baud_rate: Make sure ospeed is initialized even if ioctl fails.
        wait_for_termination: can sigpause.
        init_sys_modes: moved static structures out.

1987-04-23  Richard Mlynarik  (mly@prep)

        * malloc.c, vmsmap.c: (VMS)
        Define and use our own `sbrk' since malloc and the RTL sbrk don't
        interact very well.
        (sasaki@harvard.harvard.edu <8704220244.AA02324@prep>)

1987-04-15  Richard Mlynarik  (mly@prep)

        * dispnew.c: (VMS) Flush TIOCOUTQ stuff (meaningless on VMS)

        * fileio.c, sysdep.c: (VMS)
        Rename "define-logical-name" => "define-dcl-symbol"

        * m-irist.h:
        New file from raible@orville.arpa for iris machine
        (`3.5 turbo'). (<8704150216.AA21012@orville.arpa>)

        * unexec.c: iris code (is USG, but has struct exec)
        * sysdep.c: iris utimes emulatation. (HAVE_TIMEVAL)

        * process.c: (IRIS)
        #include <sysmacros.h>
        pty: Unusual iris pty-finding code.
        IRIS_ignore_SIGIOT_kludge, init_process:
        Iris pty's have some unknown bug which seems to cause spurious
        SIGIOTs.  Can somebody please delve into the reasons behind
        this lossage?

1987-04-15  Paul Rubin  (phr@prep)

        * version 18.44 released.

1987-04-14  Paul Rubin  (phr@prep)

        * config.h:
        Increase PURESIZE to 115800 from 115600.

1987-04-14  Richard Mlynarik  (mly@prep)

        * termcap.c (tgetent) (VMS):
        File is in emacs_library:[etc]termcap.dat
        (TUNG@WAIF.MIT.EDU <8704130324.AA10879@prep.ai.mit.edu>)

1987-04-10  Richard Mlynarik  (mly@prep)

        * window.c (Fset_window_configuration):
        Don't unchain markers -- this window configuation may be used
        again.  Let normal GC unchain them.

1987-04-08  Richard Mlynarik  (mly@prep)

        * m-vax.h: (USG 5.2)
        define NO_REMAP to kludgily bypass unexec bug.
        (We don't have such a machine here, so -we- can't find the bug!)
        (Karl.Kleinpaste <205@cbstr1.att.com>)

1987-04-07  Richard Mlynarik  (mly@prep)

        * indent.c (compute_motion):
        Use special code for HPOS if SHORT_CAST_BUG.

        * m-celerity.h, m-att3b.h, m-ibmrt.h, m-sequent.h:
        Define SHORT_CAST_BUG.

1987-04-06  Richard Mlynarik  (mly@prep)

        * malloc.c (morecore):
        Don't assume sbrk clears memory to 0's.

        * indent.c (compute_motion): Special-case HPOS for sequent.
        (iglesias@ICS.UCI.EDU <8704061703.AA26816@prep.ai.mit.edu>)

        * regex.c:
        Fix bug in which "t\(.*\) .*\1" didn't match
        "tom hates tomatoes" from Tom May @ Washington.
        (<8703241000.AA21146@beaver.cs.washington.edu>)

        * sysdep.c (getwd): (USG)
        Change first arg (0) to getcwd to (char *) 0
        Also, call `free' on value returned (after we save it)

1987-03-22  Richard M. Stallman  (rms@prep)

        * Version 18.41 released.

        * emacs.c (main): Call syms_of_xmenu only if HAVE_X_MENU.
        * ymakefile: Use new switch HAVE_X_MENU to decide whether
        to includ xmenu.c
        * config.h-dist: Tell people about this flag.

1987-03-20  Richard Mlynarik  (mly@prep)

        * filemode.c:  Hacks for set-uid/gid but not executable.

1987-03-20  Richard M. Stallman  (rms@prep)

        * sysdep.c [VMS]: include window.h.
        * sysdep.c (wait_for_kbd_input) [VMS]:
        Also detect and handle input from subprocesses.

        * fileio.c (Fread_file_name_internal) [VMS]: At end, check
        length of NAME, not STRING.

        * emacs.c (main) [VMS]: If SHAREABLE_LIB_BUG, declare `environ'
        noshare and initialize it from `envp'.

1987-03-20  Chris Hanson  (cph@prep)

        * process.c (pty): On hp-ux, do not enable TIOCREMOTE.  See the
        code for a comment explaining why.

1987-03-19  Richard M. Stallman  (rms@prep)

        * sysdep.c: Omit start_of_{data,text} if CANNOT_DUMP and SYSTEM_MALLOC.

        * m-apollo.h: Define START_FILES.

        * sunfns.c (syms_of_sunfns): Syntax error in comment.

        * sysdep.c (getwd) [USG]:
        Copy the value of getcwd into pathname.
        Supposedly needed on Altos 3068.

1987-03-18  Richard M. Stallman  (rms@prep)

        * Version 18.40 released.

        * fileio.c (Finsert_file_contents): On VMS, # bytes read
        may be less than st.st_size.  Use actual # read for recording undo.

        * fileio.c, termcap.c: Change funny VMS-format #includes
        to standard Unix format.

1987-03-17  Richard M. Stallman  (rms@prep)

        * unexec.c (copy_text_and_data): A_TEXT_SEEK if defined controls
        where in the file to start writing the text segment.
        * m-isi-ov.h: Define A_TEXT_SEEK and A_TEXT_OFFSET.

        * s-umax.h: Define C_SWITCH_ASM so as to make `asm' work.
        * ymakefile: Provide C_SWITCH_ASM when compiling crt0.c.

        * unexec.c [UMAX]: Don't include filehdr.h, etc.

        * bytecode.c (Fbytecode):
        Another SWITCH_ENUM_BUG problem.

        * sysdep.c: If not HAVE_TERMIO, override any definition of TCSETAW.
        Ultrix 2.0 has a TCSETAW but it requires a struct termio.
        Since HAVE_TERMIO is not set, sysdep uses struct sgttyb,
        and the real TCSETAW does not work with this.

        * sysdep.c (getwd): Discard everything before first slash.

        * termcap.c (tgetent): Delete VMS code to delete / from filename.
        * termcap.c (legal_filename_p): Use symbolic constant.

        * sysdep.c (sys_abort) [VMS]: New function; calls debugger.
        * sysdep.c (sys_access) [VMS]: Completely rewritten.
        Now two versions, one for VMS 4.4 and one for older VMS.
        * sysdep.c (sys_errlist) [VMS]: Insert missing elt for error code 0.
        * sysdep.c (get_system_name) [VMS]: Remove :: from end of node name.
        * sysdep.c (end_kbd_input) [VMS]: Don't wait if within ast rtn.
        * sysdep.c (kbd_input_ast) [VMS]: Set ast_active to 1 while in
        this fn.

        * sysdep.c: Add missing ; after use of BAUD_CONVERT.

        * term.c (term_init): Don't use Down on VMS if it's a ^J.
        Fix C syntax errors in fatal error message.
        Distinguish failure to open termcap fle from undefined term type.

        * s-vms.h: Increase DATA_START by 512.  #define abort sys_abort.
        Flush LIBS_DEBUG defn since ymakefile not used.
        Delete mention of GET_RIGHTS.

        * m-vax.h [VMS]: Define LOAD_AVE_TYPE and C_ALLOCA.

        * keyboard.c: Undefine SIGIO only if it's defined.
        * keyboard.c (interrupt_signal) [VMS]:
        Try suspending in case it works.

        * fns.c (Fload_average): Make eunice code work on native VMS also.
        Put the no-load-average case first for simplicity.

        * fileio.c (directory_file_name [VMS]: Use SYS$PARSE
        for [--] and other such constructs.

        * fileio.c (Fexpand_file_name) [VMS]: Handle negative version #s.

        * doc.c: Don't include paths.h

        * callproc.c (init_callproc): Make Vexec_directory
        using Ffile_name_as_directory.

        * alloc.c: Remove defns of `sdata' and `edata'.

1987-03-16  Richard M. Stallman  (rms@prep)

        * fns.c (Fy_or_n_p): Restore cursor_in_echo_area to previous value.

        * m-ibmrt.h: Define SKTPAIR only if BSD.

        * Makefile: Default is now `all', which tells
        xmakefile to make `all'.

        * ymakefile: Make emacstool by way of etc/Makefile.

        * emacs.c (main): Don't mention SIGEMT if it's not defined.

1987-03-14  Richard M. Stallman  (rms@prep)

        * Version 18.39 released.

        * s-umax.h: Add definition of SEGMENT_MASK.
        Delete definition of LIBS_SYSTEM.
        * align.umax: File deleted.

        * emacs.c (main): Don't mention syms_of_vmsfns explicitly.
        * s-vms.h: Use SYMS_SYSTEM to call syms_of_vmsfns.

        * config.h-dist: Remove VMS conditional for PURESIZE.
        * s-vms.h: Define PURESIZE.
        * m-sun2.h: Define PURESIZE, if HAVE_SUN_WINDOWS.

1987-03-13  Richard M. Stallman  (rms@prep)

        * sysdep.c: Don't redefine TCSETAW if already defined.
        (Cancelled by change on March 17).

        * sunfns.c: New file containing interface to Sun windows.
        This is enabled by the switch HAVE_SUN_WINDOWS.

        * m-sun2.h: If HAVE_SUN_WINDOWS, include sunfns.c
        via OBJECTS_MACHINE and SYMS_MACHINE.

        * emacs.c (main): Allow SYMS_SYSTEM and SYMS_MACHINE
        to control calling of extra syms_of_... functions.

        * ymakefile (OBJECTS_MACHINE, OBJECTS_SYSTEM):
        Provide for m- and s- files to specify additional object
        files to link into temacs.

1987-03-12  Richard M. Stallman  (rms@prep)

        * fileio.c (Fsysnetunam): Make this function conditional on
        HPUX_NET, not on HPUX.
        * s-hpux.h: Make use of -ln switch depend on HPUX_NET.
        Define HPUX_NET in config.h if you have that version of HPUX.

        * unexec.c (adjust_lnnoptrs) [amdahl_uts]:
        Alternative names for struct symentry and struct auxentry.

        * sysdep.c [amdahl_uts]: Define sign_extend_temp as on ATT3B.

        * m-amdahl.h: New file.

1987-03-12  Richard Mlynarik  (mly@prep)

        * sysdep.c (child_setup_tty):
        HPUX: Set baud-rate to 9600 (not 38400)
        For some reason the former is reported to work faster(!?)

1987-03-10  Richard M. Stallman  (rms@prep)

        * dispnew.c (init_display): Declare alternate_display only if X.

1987-03-09  Richard M. Stallman  (rms@prep)

        * m-alliant.h, crt0.c (for alliant):
        Must save _curbrk when dumping (from ADJUST_EXEC_HEADER)
        and restore it in crt0, because _curbrk itself isn't dumped.

        * unexec.c: Add a separate unexec routine for mips machines.
        No code is shared with normal unexec.

1987-03-08  Richard M. Stallman  (rms@prep)

        * sysdep.c (baud_convert): Use new macro BAUD_CONVERT
        to override the standard conversion table.
        Use standard table if macro's not defined.
        * s-vms.h, s-hpux.h: Definitions of BAUD_CONVERT.

        * editfns.c (Fsubst_char_in_region):
        Call modify_buffer before changing it, and pass entire region.
        If NOUNDO is set, un-increment bf_modified after that.

1987-03-07  Richard M. Stallman  (rms@prep)

        * lisp.h: #ifndef the definitions of XUINT, XSET, XMARKBIT, etc.
        Make them all use XUINT when they want to extract the unsigned value.

1987-03-05  Richard M. Stallman  (rms@prep)

        * term.c (write_standout_marker): If "xs" present and sg#0,
        don't write standout-off markers.

        * xmenu.c: Include signal.h before xterm.h.

        * sysdep.c (reset_sys_modes): Do fsync (on bsd4.2 or 4.3)
        before changing the terminal modes.

        * ymakefile (emacstool): Remove spurious `/' after `${etcdir}'.
        * m-sun2.h: Likewise.

        * process.c: Replace BSD conditionals with HAVE_SOCKETS for tcp stuff.
        Give NETCONN_P a default definition if not HAVE_SOCKETS.
        Don't defsubr open_network_stream if not HAVE_SOCKETS.

        * s-*.h: Define HAVE_SOCKETS, or add place holder.
        * m-stride.h: Define HAVE_SOCKETS.

1987-03-04  Richard M. Stallman  (rms@prep)

        * ymakefile (LIBX): add -lXMenu.

1987-03-03  Richard M. Stallman  (rms@prep)

        * fileio.c (Fwrite_region): Really put the `fstat' after
        the `fsync', trying to solve spurious "file has changed" warnings.
        This reverses a change made on Jan 28 which was described then
        as putting the `fstat' after the `fsync' but which in fact
        was exactly the opposite.  The truth is that anciently the
        `fstat' was after, and on Jan 28 it was moved before.
        The change on Jan 28 was to fix some sort of RFS problem.
        I don't know whether the change itself or just its description
        was incorrect.

        * Version 18.38 released.

1987-02-28  Chris Hanson  (cph@prep)

        * fileio.c: Added `sysnetunam' function for controlling remote
        file access connections under hp-ux.

        * s-hpux.h (LIBS_SYSTEM): Added `-ln' which is used by `sysnetunam'.

1987-02-28  Richard M. Stallman  (rms@prep)

        * xdisp.c (display_text_line): Typo in line that fixes tab_width.

1987-02-27  Richard M. Stallman  (rms@prep)

        * dispnew.c (Fopen_termscript): `report_file_error'
        requires list as 2nd arg.

1987-02-26  Richard M. Stallman  (rms@prep)

        * xmenu.c: New file defining Fx_popup_menu.
        * emacs.c (main): Call syms_of_xmenu.

        * buffer.c (Fother_buffer): Condition for assigning to
        `notsogood' was backwards (should be if null).

1987-02-23  Richard M. Stallman  (rms@prep)

        * keymap.c (access_keymap): No longer check lower case
        equivalent of an upper case letter that is undefined.

        * keyboard.c (read_key_sequence): If an upper case letter
        is undefined, and corresponding lower case letter is defined,
        use the lower case letter instead.

        * emacs.c: Delete all ALLIANT conditionals that used to
        save and restore _curbrk.  Special code in crt0.c now
        handles this.

        * crt0.c [ISI68K]: Assembler code to put a .word 0 after _start.
        Include the dummy arg `ignore' in start1.

        * crt0.c [orion/pyramid/celerity]: ALLIANT now uses this case,
        but with some special code to hack _curbrk on first startup.

        * m-alliant2.h: File deleted.  Use m-alliant.h for version 2.
        * m-alliant1.h: Don't look for ALLIANT2 to be defined.
        Now ALLIANT1 is defined for version 1 and not for version 2.
        Define NO_ARG_ARRAY only for version 1.
        Define START_FILES so GNU crt0.c gets used.
        Remove definition of TEXT_START (safe since GNU crt0.c is used).
        Add to ADJUST_EXEC_HEADER something to set unexec_text_start.

1987-02-22  Richard M. Stallman  (rms@prep)

        * dispnew.c (Fopen_termscript):  Close existing termscript
        file before trying to open a new one.  Report open failure
        with report_file_error.

1987-02-21  Paul Rubin  (phr@prep)

        * window.c (set-window-buffer): typo "set-widow-buffer".

1987-02-19  Richard Mlynarik  (mly@prep)

        * lisp.h:
        Add type Lisp_Window_Configuration, delete Lisp_Temp_Vector.
        A window configuration is a Lisp_Vector-like object.
        Add decls for F{set,current}_window_configuration.

        * window.c (F{set,current}_window_configuration):
        New lisp-callable functions which do the guts of
        Fsave_window_excursion.

        Also fixed a bug in which point was not being restored in
        buffer currrent at end of save-window-excursion and that buffer
        was not current when the config was recorded (It is supposed
        to not be restored if it was current at the start)

        * alloc.c (mark_object):
        Add case for Lisp_Window_Configuration; remove code for
        Lisp_Temp_vector.

        * window.c, window.h:
        Rename Fshow_buffer Fset_window_buffer (which was previously the
        synonym in subr.el)

        * keyboard.c, minibuf.c: Window configuration caller changes.

        * print.c (print):
        Understand Lisp_Window_Configuration's.
        Print a disturbing message if encounter an illegal dtp --
        perhaps this should core-dump?

1987-02-17  Richard Mlynarik  (mly@prep)

        * dired.c (Ffile_attributes):
        Use make_number.  (XINT doesn't work on LHS of assignment)

1987-02-17  Richard M. Stallman  (rms@prep)

        * doc.c (get_doc_string, Fsnarf_documentation):
        In vms4.4, avoid system bug by using sys_translate_unix
        to translate filename to VMS format before opening.

1987-02-16  Richard M. Stallman  (rms@prep)

        * crt0.c: Don't define `environ' if DONT_NEED_ENVIRON is defined.

        * m-elxsi.h: Define DONT_NEED_ENVIRON
        Define C_DEBUG_SWITCH as -O since there is no debugger.
        Don't define VIRT_ADDR_VARIES.

        * xdisp.c (display_mode_element): Handle SWITCH_ENUM_BUG.

        * sysdep.c (reset_sys_modes): Loop on TCSETAW
        until it does not get EINTR.

1987-02-15  Richard M. Stallman  (rms@prep)

        * s-bsd4-2.h: Make defns of BSD and BSD4_2 conditional.

1987-02-13  Richard M. Stallman  (rms@prep)

        * process.c: TCP connection feature from markl@jhereg.lcs.mit.edu.
        Uses a process-object to represent a connection.
        childp field is now Qt for a real subprocess,
        or a hostname string for a tcp connection.
        NETCONN_P checks this.
        Status strings "open" and "closed" replace "run" and "exit"
        for tcp connections only.  New function Fopen_network_stream.

        * dired.c (Ffile_attributes): Use XINT to store the inode #.
        It can be out of range for integers.

1987-02-12  Richard M. Stallman  (rms@prep)

        * xdisp.c (try_window): Fix paren errer in checking hpos
        against hscroll.  This caused window_end_pos to be wrong
        when there was hscroll.

        * xdisp.c (display_text_line): Move code that inserts `$'
        at bol for hscroll, so that its alteration of p1 does not
        interfere with setting point_hpos.
        Use lastpos instead of pos in that code.
        Make lastpos be accurate in all cases including when there
        is truncation.

        * xdisp.c (display_string): mincol==-1 means no minimum.
        * xdisp.c (display_text_line): Use -1 for mincol of minibuf promp.

1987-02-11  Richard M. Stallman  (rms@prep)

        * Version 18.37 released.

        * data.c (Fmake_local_variable, Fmake_variable_buffer_local):
        Get error if arg is t or nil.  Doc improvements.

1987-02-10  Richard Mlynarik  (mly@prep)

        * xfns.c (Fx_get_default):  Add (unsigned char *) cast.

        * window.c: typo.

1987-02-09  Richard M. Stallman  (rms@prep)

        * process.c (change_msgs): Save/restore selected buffer
        only over simple insertions, and over one such at a time.
        Don't save it across sentinel invocations.

1987-02-08  Richard M. Stallman  (rms@prep)

        * tparam.c (tparam): Supply code for NO_ARG_ARRAY case.

        * window.c, minibuf.c, window.h: Rename minibuf_scroll_window to
        Vminibuf_scroll_window.  Make it a Lisp variable.
        * window.c (Fscroll_other_window): Validate
        Vminibuf_scroll_window since user could store a non-window there.

        * window.c (temp_output_buffer_show):
        Call Vtemp_output_buffer_show_hook to do the work, if not nil.

        * window.c (Fminibuffer_window): New function.

        * print.c (print, syms_of_print): If print_escape_newlines
        is nonzero, print newlines in strings as \n.

        * minibuf.c (read_minibuf): Reduce arg to get_minibuf by 1.
        Thus, use *Minibuf-0* for outer-level minibuffers.

        * keyboard.c (command_loop_1): Pass 2nd arg to Fsit_for.
        * minibuf.c (temp_minibuf_message): Likewise.

        * dispnew.c (Fsit_for): 2nd arg non-nil means don't redisplay.

        * s-vms.h: Don't define VMS4_0, VMS4_2 or VMS4_4.
        * s-vms4-[024].h: New files that include s-vms.h and also
        define VMS4_0 or VMS4_2 or VMS4_4.

        * vmspaths.h: Remove `/emacs' from all paths, to go with a change
        in emacs.com that includes that path segment in emacs_library.

        * term.c (term_init): Different message on VMS for invalid termtype.

        * alloc.c (Fgarbage_collect): After GC, clear marks
        in the dummy buffers buffer_defaults and buffer_local_symbols.

1987-02-07  Richard M. Stallman  (rms@prep)

        * window.c (Fnext_window): Restore old meaning of t as 2nd arg:
        count minibuffer window even if not active.
        Non-t-non-nil as 2nd arg means never count minibuffer window.

        * window.c (window_loop): Rewrite to work the old way.
        The new way did not work when deleting windows.

1987-02-05  Richard M. Stallman  (rms@prep)

        * m-sequent.h: Undef old definition of KERNEL_FILE so no warning.

        * process.c (read_process_output): Don't restore selected buffer
        after filter; sometimes setting buffer is useful in filter functions.


1987-02-02  Richard M. Stallman  (rms@prep)

        * keyboard.c (kbd-buffer_store_char): Fix paren error.

1987-01-31  Richard M. Stallman  (rms@prep)

        * window.c (window_loop): Rewrite not to pass t as 2nd arg
        to Fnext_window by starting loop from the window after
        the minibuffer.  This was sole use of the feature.

        * window.c (Fnext_window): Change meaning of t as 2nd arg.
        It now means to ignore the minibuffer even if it's active.

1987-01-29  Richard M. Stallman  (rms@prep)

        * cmds.c (Fforward_line): Correct the returned value.

1987-01-28  Richard M. Stallman  (rms@prep)

        * keyboard.c (kbd_buffer_store_char):
        Ignore meta bit while checking for C-g, if meta-flag is clear.

        * unexec.c (make_hdr): typo `bas_start'.

        * sysdep.c: Declare errno explicitly since errno.h may fail to.

        * fileio.c (Fwrite_region): Move the fstat after the fsync.
        [Note: the above sentence was incorrect; actually the fstat
        had been after and was moved *before* the fsync. -- RMS, Mar 3.]
        Avoids RFS lossage with fsync (maybe).

        * s-rtu.h: Define NLIST_STRUCT and LDAV_SYMBOL.
        * m-masscomp.h: Check machine type to choose between C_ALLOCA
        and HAVE_ALLOCA.

1987-01-27  Richard Mlynarik  (mly@prep)

        * window.c (change_window_height):
        Validate window_min_height.

1987-01-26  Richard M. Stallman  (rms@prep)

        * m-ibmrt.h: LOAD_AVE_TYPE now double.
        Now both operating systems for RT now supported.

        * fileio.c (Fsubstitute_in_file_name):
        Delete everything thru last /~ or // in file name.

        * sysdep.c (select): If no subprocesses, make `child_changed'
        local and initialized to 0.

        * xdisp.c (display_string): If TRUNCATE is 0, display all the
        way to window edge; don't stop one column short.

1987-01-24  Richard M. Stallman  (rms@prep)

        * unexec.c (make_hdr): New var `bss_end' holds end-of-bss address.
        This simplifies computation of bss size while keeping it from
        being negative.

1987-01-23  Richard Mlynarik  (mly@prep)

        * fileio.c (Fexpand_file_name):
        Have to do checks for "//" "/~" etc even if filename is
        non-absolute, otherwise things like "~user1/~user2" aren't
        expanded correctly (was getting "/u/user1/~user2" instead of
        "/u/user2")

        * doc.c (Fsubstitute_command_keys): Doc fix.

        * m-stride.h: Fixes from bruce@stride.com

1987-01-22  Richard M. Stallman  (rms@prep)

        * eval.c (Feval, apply_lambda): When protecting a vector
        of evaluated arguments, across the loop that evals them,
        always set gcproN.nvars to the number of args
        evalled so far, since the rest of the vector elements
        are still garbage.

1987-01-21  Richard M. Stallman  (rms@prep)

        * Version 18.36 released.

1987-01-21  Richard M. Stallman  (rms@prep)

        * term.c (write_chars): If we find N identical chars
        and that is too few for a Repeat operation,
        don't consider the last N-1, last N-2, ... of those chars.

        * dispnew.c (update_line): Fill old line with spaces to
        screen_width - 1 if it is highlighted (just like new line).

        * bytecode.c (Fbytecode):
        Include bytecode pc value in stack over/underflow errors

1987-01-20  Richard M. Stallman  (rms@prep)

        * lread.c (defvar_lisp_nopro): New fn like defvar_lisp
        but doesn't call staticpro.
        * lisp.h (DEFVAR_LISP_NOPRO): New macro to call that function.
        * buffer.c (syms_of_buffer): Use DEFVAR_LISP_NOPRO
        to define variables that live in buffer_defaults.
        * buffer.c (init_buffer_once): tab_width was being assigned
        two different flag bits.

        * keyboard.c: #undef SIGIO if there's no FIONREAD.

1987-01-19  Richard M. Stallman  (rms@prep)

        * indent.c (compute_motion): IBMRT needs HPOS defined
        like celerity.

1987-01-16  Richard Mlynarik  (mly@prep)

        * xfns.c (Fx_set_{background,cursor,mouse}_color):
        Initialise save_color.

        * fileio.c, search.c, sysdep.c, filelock.c, editfns.c, process.c:
        Delete/replace unused/conditionalised variables

1987-01-15  Richard M. Stallman  (rms@prep)

        * fns.c (Fcopy_alist): Pass missing arg to concat.

        * termcap.c (tgetent): Remove extra arg given to find_capability.

        * alloc.c (make_uninit_string, init_alloc_once):
        * indent.c (compute_motion): Delete unused vars.

        * fileio.c (Frename_file): Add missing arg to Fcopy_file.

        * alloc.c (mark_object): Add cast for cleanliness.
        Remove unnecessary break stmt.

        * keyboard.c (kbd_buffer_get_char): Flush unused local var.

1987-01-15  Richard Mlynarik  (mly@prep)

        * dispnew.c (init_display):
        Hack X if "-d display-name" specified, even if env var DISPLAY
        not set.

1987-01-15  Richard M. Stallman  (rms@prep)

        * fns.c (Fconcat): doc fix.

1987-01-15  Richard Mlynarik  (mly@prep)

        * keyboard.c (last_command): doc fix

1987-01-13  Richard M. Stallman  (rms@prep)

        * process.c (create_process): Cast value of `signal' to insulate from
        * sysdep.c (sys_suspend, select): changed value type in sysV.3.

1987-01-12  Richard M. Stallman  (rms@prep)

        * sysdep.c (reset_sys_modes): Use TCSETAW to restore tty state.
        On BSD, define TCSETAW to be TIOCSETN (so no change here on BSD).

        * callproc.c (init_callproc): Don't get environment as
        strings when dumping Emacs.

1987-01-12  Richard Mlynarik  (mly@prep)

        * lread.c (Fload, load_unwind):
        load_in_progress must be a counter, not a flag since `load' may be
        called recursively.

        * lread.c (openp):
        If PATH contains non-absolute element (such as ".") expand against
        bf_cur->directory.

        * filemode.c (ftypelet):
        Understand (and return) more different file-types (stat->st_mode's)
        This makes Ffile_attributes more winning.

        * filelock.c (current_lock_file_owner_1):
        Always close the fd even if get an error reading!!!

1987-01-11  Richard Mlynarik  (mly@prep)

        * fileio.c (Fsubstitute_in_file_name, Fread_file_name_internal):
        `Quote' "$" as "$$"  This doesn't break any existing code,
        since "$$" used to get an error, and wins by providing the user a
        way to specify filenames containing the character "$"

        * fileio.c (Fsubstitute_in_file_name):
        Allow substituting zero-length env vars.

1987-01-10  Richard M. Stallman  (rms@prep)

        * termcap.c (tgetent): Fix syntax errors in VMS-only code.

1987-01-09  Richard Mlynarik  (mly@prep)

        * xterm.c (x_term_init):
        Give correct error message when DISPLAY not set.

1987-01-08  Richard Mlynarik  (mly@prep)

        * xfns.c (Fx_get_default):
        Return nil, not "" on non-existent option, as documented.
        Don't randomly and unnecessarily malloc (and then not free)

        * process.c (init_process):
        Look at extern var initialized rather than having arg passed.

        * emacs.c (main):
        Dike out the code which hacked the "-nx" option as synonymous with
        "-nw" if HAVE_X_WINDOWS -- this code was never distributed
        earlier, so there was no need to retain a compatibility kludge.

1987-01-08  Richard M. Stallman  (rms@prep)

        * search.c (Freplace_match): Change declaration `char' to `int'.
        Declaring a scalar variable `char' is nearly always wrong
        and breaks most compilers.

1987-01-07  Richard M. Stallman  (rms@prep)

        * xterm.c (flashback): Change || to | in signal mask calculation.

1987-01-06  Richard M. Stallman  (rms@prep)

        * print.c (print): RTPC_REGISTER_BUG conditional.
        * data.c (Fset): likewise.
        * m-ibmrt.h (SIGN_EXTEND_CHAR): Flush the definition that used
        a subroutine and really install the one that uses arithmetic.

1987-01-06  Richard Mlynarik  (mly@prep)

        * keyboard.c (kbd_buffer_{read,store}_char):
        Look at MetaFlag when reading char out of buffer rather than
        storing into it so that buffer-local meta-flag works correctly.

1987-01-06  Richard M. Stallman  (rms@prep)

        * syntax.c (Fchar_syntax, Fmodify_syntax_entry):
        Mask specified char to 8 bits before indexing syntax table.

1987-01-05  Richard Mlynarik  (mly@prep)

        * callproc.c (init_callproc):
        Make maintain_environment stuff work yet again.

1987-01-05  Richard M. Stallman  (rms@prep)

        * fileio.c (report_file_error): Check for errno < 0.

        * Version 18.35 released.

1987-01-03  Richard M. Stallman  (rms@prep)

        * callproc.c: Rename Vprocess_extra_environment => Vprocess_environment.
        * callproc.c (init_callproc): Copy Unix environment into
        Vprocess_environment as list of strings.
        * callproc.c (child_setup): Set `env' from Vprocess_environment
        alone; don't keep `env' passed by caller.

        * ymakefile: New cpp-macro OTHER_FILES specifies
        how to make the file `other'.

        * m-sun2.h: Define OTHER_FILES to compile etc/emacstool.

        * xfns.c (Fx_mouse_events, Fx_proc_mouse_event):
        Set 4 bit in button character for a button-up event.

        * xfns.c (most calls to XSelectInput):
        * xterm.c (XPopUpWindow):
        Calls that specify ButtonPressed now also say ButtonReleased.

        * xterm.c (XTread_socket): Handle ButtonReleased like
        ButtonPressed.

        * indent.c (Fmove_to_column): Declare `c' int;
        type char caused lossage for chars >= 0200.

        * search.c (search_buffer): Don't accept a match
        starting right at the end of the buffer.

        * xfns.c: Move extern declarations to top level.
        Some functions were depending on the fact that all
        extern declarations are effectively at top level in pcc.

        * buffer.c (Fbuffer_start_undo): Get error right if non-ex buf spec'd.

        * indent.c (several): Fix range checks on tab_width:
        replace && with ||.

1987-01-01  Richard Mlynarik  (mly@prep)

        * indent.c (Fcurrent_column, Fmove_to_column):
        Doc.

        * window.c (Fwindow_edges):
        Doc.

        * process.c, callproc.c:
        Make MAINTAIN_ENVIRONMENT stuff work yet again.
        Clean up calling sequence of child_setup.

1986-12-31  Richard M. Stallman  (rms@prep)

        * search.c (search_command): abort before setting point
        if new point value is out of range.

        * buffer.c (Fbuffer_enable_undo): New function.

1986-12-26  Richard M. Stallman  (rms@prep)

        * casefiddle.c (casify_region): Don't upcase within word
        for CASE_CAPITALIZE_UP.

1986-12-24  Richard M. Stallman  (rms@prep)

        * window.c (save_window_save_1):
        Don't make windows for start, pointm and mark fields
        of windows without buffers; just store nil there.
        Also store nil in start_at_line_beg field (was uninitialized
        and that caused crash in GC).

        * window.c (all functions): Add register declarations.

        * window.c (Fsave_window_excursion):
        Don't gcpro the saved window status.  The specpdl does it.

1986-12-23  Richard M. Stallman  (rms@prep)

        * search.c: static_BM_tab should not be initialized.

1986-12-22  Richard M. Stallman  (rms@prep)

        * term.c (term_init): Default Wcm.cm_tab to 0 if no `ta' string.

        * fns.c: MASSCOMP_REGISTER_BUG => MASSC_REGISTER_BUG

        * fns.c (Fnth): Moved from subr.el.
        * keymap.c (Fcopy_keymap): Moved from subr.el.

        * xdisp.c: Delete this_line_hpos; last dispnew change ends
        need for it, and it was causing incorrect positioning
        after direct_output_for_self_insert.

        * fns.c: Avoid warning if param.h defines BSD4_3.

        * dispnew.c (update_screen): Don't actually alter
        cursX and cursY when putting cursor in echo area.

1986-12-21  Richard M. Stallman  (rms@prep)

        * window.h: New window field window_end_valid.
        window_end_pos is now always positive; validity info
        is in window_end_valid, which is t for valid and nil for not.

        * xdisp.c: Changed all uses of window_end_pos to use
        window_end_valid appropriately as well.

        * process.c (wait_reading_process_input):
        read_kbd is now a process pointer to wait for input
        from one process.  Return immediately if that process
        is not running.

        * process.c (Faccept_process_output):
        Pass process pointer to wait_reading_process_input.

1986-12-20  Richard Mlynarik  (mly@prep)

        * keyboard.c (Fsuspend_emacs):
        If `suspend-emacs-hook' returns t don't suspend
        -- assume the hook did the equivalent of `suspending' for us
        (including calling suspend-resume-hook if necessary.)
        Otherwise, call sys_suspend and so forth normally.

1986-12-20  Richard M. Stallman  (rms@prep)

        * buffer.c (Frename_buffer): If have auto save file but
        no visited file, call rename-auto-save-file (a Lisp function).

        * buffer.c: add lots of register declarations.
        (list_buffers_1): combine local `mode' with `tail'.

1986-12-20  Richard Mlynarik  (mly@prep)

        * xdisp.c (DoDsp and this_line_*):
        Rename this_line_hpos -> this_line_start_hpos.
        New variable this_line_hpos is cached horizontal position
        on screen of point.

        Make this_line_* static variables.

        In DoDsp, rearrange the tests to see whether to use cached
        line info to be a little faster.
        Fix some bugs in which cursX and cursY might not be updated
        correctly when using cached info (needed to add this_line_hpos
        variable to do this correctly)
        (Added unnecessary gotos and  label `cancel' for added readability)

        * fns.c (Fy_or_n_p):
        Move cursor to start of line after reading answer so
        user knows emacs is proceeding.  (Like after minibuffer exits)

        * dispnew.c (Fopen_termscript):
        Arg of nil means to close current termscript file (if any)

        * keymap.c (Fwhere_is_internal):
        Doc fix.

        * indent.c, search.c, xdisp.c:
        All callers of ScanBf were searching for '\n'
        Rename this function find_next_newline and drop first arg.

        * indent.c (Fvertical_motion):
        Doc string addition.

        * keyboard.c (EchoThem):
        Test for echo_keystrokes > 0, rather than echo_keystrokes != 0

        * keyboard.c (get_char, read_key_sequence):
        Echo immediately if cursor_in_echo_area, otherwise
        can have the confusing situation of the cursor appearing at the
        start of the echo area, but not have any echo appear until one
        second later.

1986-12-17  Richard M. Stallman  (rms@prep)

        * editfns.c: Add register declarations and a few vars for cses.
        * editfns.c (Fchar_equal): Avoid indexing downcase_table
        with numbers larger than 0xff.

1986-12-16  Richard M. Stallman  (rms@prep)

        * alloc.c: New garbage collection technique for strings.

        Strings that have string blocks individually allocated
        are called "large strings".  Other strings are called "small".

        The string blocks for small strings are now chained both ways and
        there is a pointer to the oldest one of them in `first_string_block'.
        The string blocks for large strings are chained only from the
        latest to the oldest, and the latest is in `large_string_blocks'.

        Garbage collection starts by setting MARKBIT in the `size' of
        each large string.  This allows mark_object to distinguish them.
        MARKBIT in string sizes is cleared by gc_sweep.

        Large strings are freed individually by GC, like vectors.
        Those in use are marked with ARRAY_MARK_FLAG in the `size' field.

        Small strings are relocated, compressing them within their
        string blocks.
        mark_object puts all slots that point at a string onto a chain
        which runs from the string's `size' field, through all the slots
        that used to point at the string.  The end of the chain is shown
        by a number that is small enough to be a small string's length.

        This new technique avoids calling malloc during GC.  Thus, there
        is no danger of fatal error on exhausting memory.  Also, space
        needed for strings is cut in half.

        The new technique introduces a potential for bugs, however.
        If any slot is marked twice--for example, if it is GCPRO'd
        twice by different functions--and it contains a string,
        the ref chain of the string may become garbled.  Sometimes
        it will still work!  This is because a slot that's part of a
        string's ref chain will look like a Lisp_Int if the next thing
        in the chain is malloc'd memory.  But this will not win if the
        next thing in the chain is a stack slot, or if malloc'd data
        lives high up in memory.

        To avoid this problem, MARKBIT is used in stack slots
        to prevent double marking.

        * bytecode.c (Fbytecode): Adjustment of gcpro1.nvars before
        call to Ffuncall was off by one.

        * alloc.c (make_uninit_string): make_zero_string renamed as this
        and no longer zeros the contents.
        * alloc.c (Fmake_string): initialize string contents.

        * alloc.c (struct string_block): Now chained both ways thru
        `next' and `prev' fields.  `first_string_block' exists.
        Strings with individual string blocks are now called "large"
        and these string blocks go in a separate chain which starts
        from `large_string_blocks' and runs via `prev' fields only.

        * alloc.c: Stop using clear_marks.  Make gc_sweep clear
        the marks on all live objects.

        * alloc.c (malloc_warning, Fgarbage_collect): Eliminate mechanism
        that defers malloc warnings during GC, since GC no longer calls
        malloc.

        * fns.c: Fding requires an arg; pass Qnil.

        * m-alliant.h: define TEXT_START as 0x1000.
        Don't define LIBS_STANDARD; the default (sharable) library
        is said to work now.

        * alloc.c (mark_object): Now pass address of slot being marked.
        mark_object itself can alter the slot when necessary.
        It now returns no value.  All callers changed to pass the address.

        mark_object can now ignore the mark bit if it's set in the slot.
        Callers need no longer make a copy in which mark bit is clear.
        mark_object can clear the mark bit so these callers must still
        set the mark bit again after calling mark_object on such slots.

1986-12-15  Richard M. Stallman  (rms@prep)

        * process.c (create_process): TIOCNOTTY needs no 3rd arg after all.
        * sysdep.c (set_exclusive_use): ditto for FIOCLEX.

        * emacs.c (Fdump_emacs): [ALLIANT]
        Copy _curbrk into save_curbrk, not vice versa.

1986-12-13  Richard M. Stallman  (rms@prep)

        * sysdep.c (flush_pending_output): 3rd arg to TIOCFLUSH
        now is address of word containing zero.  It matters.

        * editfns.c (Fformat): Fix another error in previous bug.

1986-12-12  Richard M. Stallman  (rms@prep)

        * Version 18.33 released.

        * data.c: Add many register declarations.

        * editfns.c (Fformat): Last change left `n' one too small.

1986-12-11  Richard M. Stallman  (rms@prep)

        * keyboard.c (Fsuspend_emacs): Pass no args to the
        suspend-resume-hook.  Also call a new hook, `suspend-hook',
        before suspending.

        * search.c (search_buffer): In inner loop of BM search,
        decide dynamically whether signed or unsigned comparison
        of p_limit vs cursor will give the right results
        and use the kind that will work.

1986-12-11  Richard Mlynarik  (mly@prep)

        * emacs.c,  dispnew.c:
        Rename inhibit_x_windows inhibit_window_system.
        Understand "-nw" command-line option.
        Reorganise init_display a little to make other window-system
        code easier to accommodate.

        * editfns.c (Fformat):
        Move the increment of the number of args the format string wants.
        Share code for various kinds of arguments converted to strings.

1986-12-10  Richard M. Stallman  (rms@prep)

        * commands.h: Declare cursor_in_echo_area.
        * dispnew.c (init_display): initialize it.
        * dispnew.c (syms_of_display): make Lisp variable for it.
        * dispnew.c (update_screen): If cursor_in_echo_area not 0,
        set cursor position after last char on last screen line.
        * fns.c (Fy_or_n_p): Set cursor_in_echo_area while read answer.

        * data.c (Fset_default): if RTPC_REGISTER_BUG defined,
        don't declare `b' register.
        * m-ibmrt.h: Define RTPC_REGISTER_BUG.

        * print.c (print, case Lisp_Window):
        Add temp var `p' to help RT/PC compiler.
        Declare printcharfun register.

1986-12-09  Richard Mlynarik  (mly@prep)

        * editfns.c (Fformat):
        `%%' doesn't take an `arg'

        * doc.c (Fsubstitute_command_keys):
        Fix stupid mistakes and errors.  Rename many local variables
        and rearrange some code.

1986-12-07  Richard Mlynarik  (mly@prep)

        * xfns.c (Fx_flip_color):
        Missing paren in DEFUN arglist.

1986-12-06  Richard M. Stallman  (rms@prep)

        * Version 18.32 released.

        * process.c ({read,handle}_process_output):
        Combine handle_process_output into read_process_output.
        Check for case where read returns -1.

1986-12-05  Richard M. Stallman  (rms@prep)

        * process.c (read_process_output): Read only one buffer worth
        and return without trying to read more.  It used to loop
        until all output was gobbled.  Now some callers do this loop
        but not all of them.

        * process.c (change_msgs): Call read_process_output repeatedly
        until it returns 0 (no chars were read).

        * term.c (write_chars): loop counting repeated chars leaves
        p at second nonrepeated char.  Decrement p after the loop.

        * process.c (create_process): Use set_exclusive_use;
        don't use FIOCLEX directly.

        * sysdep.c (flush_pending_output):
        Pass a valid address as third arg to TIOCFLUSH, just in case.
        * sysdep.c (set_exclusive_use): Likewise, with FIOCLEX.
        * process.c (create_process): Likewise, with TIOCNOTTY.

        * xfns.c (XCleanUp): Pass Qt to Fdo_auto_save.

        * xfns.c (Fx_rubber_band): Set screen_garbaged.

        * doc.c (Fsubstitute_command_keys):
        Use Fwhere_is_internal instead of where_is_in_buffer.
        New construct =<MAPVAR> means use value of MAPVAR
        as local map when calling Fwhere_is_internal.

        * keymap.c (Fwhere_is_internal, where_is_in_buffer):
        Combine the two functions.  This adds two arguments to
        Fwhere_is_internal: KEYMAP and FIRSTONLY.
        To get the old behavior, KEYMAP must be (current-local-map).
        Therefore, KEYMAP is a mandatory operand for Lisp callers.

        * keymap.c (Fwhere_is): Pass new args to Fwhere_is_internal.
        * keymap.c (apropos1): Call Fwhere_is_internal instead of
        where_is_in_buffer.

        * search.c (Freplace_match): Check type of first arg.

        * abbrev.c (Fexpand_abbrev): For abbrev with hook,
        run the hook in addition to (and following) insertion
        of the expansion in the usual way.

        * editfns.c (Fformat): [MLY]
        Compute number of args needed by format string; then
        convert args from Lisp_Object to int or char *, defaulting
        any not specified.

        Don't GCPRO; should not be needed since eval is not called.

        * editfns.c (format1): Args are ints or char *'s,
        not Lisp_Objects.  Call them ints.

1986-12-04  Richard Mlynarik  (mly@prep)

        * xfns.c (Fx_debug):
        Return Lisp_Object

1986-12-01  Richard Mlynarik  (mly@prep)

        * xfns.c (Fx_set_font):
        Don't die if font is ""  (I believe this to be an X bug)
        Also, add interactive specs for Fx_set_(internal_)border_width.

        * lread.c (oblookup):
        Don't core-dump if data in obarray is invalid

1986-12-01  Richard M. Stallman  (rms@prep)

        * m-att3b.h: on 3b2, 3b5 and 3b15, #define C_OPTIMIZE_SWITCH null
        since -O triggers compiler bug affecting push_key_description.

1986-11-28  Richard Mlynarik  (mly@prep)

        * keyboard.c (read_key_sequence):
        Delay setting up the local vars pointing to keymaps until a
        character has been read.  This is in order that a change of keymap
        `behind our back' (eg due to a subprocesses action) will be seen.

        * xterm.c:
        Typo.

1986-11-26  Richard M. Stallman  (rms@prep)

        * sysdep.c (get_system_name):
         Eliminate internal static var in USG case.

        * lisp.h: New case testing and conversion macros
        UPPERCASEP, LOWERCASEP, NOCASEP, UPCASE, DOWNCASE.
        They all work from downcase_table.

        * casefiddle.c (casify_object, casify_region):
        Use those macros.  Create an enum type for the flags
        and change the flag names to avoid conflict with the macros.

        * abbrev.c (Fexpand_abbrev): Use those macros.
        * editfns.c (init_editfns):
        * fns.c (y-or-n-p):
        * keymap.c (access_keymap):
        * fileio.c (report_file_error):
        * process.c (change_msgs):

        * search.c (Freplace_match): Use upcase_initials_region
        insead of duplicating it.

        * keyboard.c (Frecursive_edit): If not the top-level edit,
        specbind standard-output and standard-input to t.
        * keyboard.c (command_loop_1): Don't set those two vars.
        This avoids clobbering them permanently when minibuffer is used.

1986-11-25  Richard M. Stallman  (rms@prep)

        * callproc.c (child_setup): New arg `envlen' is length
        of the list Vprocess_extra_environment.
        This list's elements (strings) are put at the front of
        the environment for the other program.

        * callproc.c (Fcall_process): Some rearrangement of
        local variables for more register decls.  Compute
        and pass `envlen' arg to child_setup.

        * process.c (create_process):  Compute and pass `envlen' arg
        to child_setup.

        * xterm.c (x_term_init): Don't call XPopUpWindow at all.
        Leave it for the term-setup-hook (see lisp/term/x-win.el).

        * keyboard.c (syms_of_keyboard):
        Delete defsubr for usg-suspend-emacs.

        * fns.c, m-masscomp.h: Rename MASSCOMP_REGISTER_BUG
        to MASSC_REGISTER_BUG to avoid shortnames confusion on V.0.

        * dispnew.c (direct_output_for_{self_insert,forward_char}):
        These functions now return 0 if did nothing or 1 if did display.
        * keyboard.c (command_loop_1): Notice the returned values.

        * window.c (change_window_height):
        Add new variable delta1 so no need to use delta
        for two different things.
        Making window bigger to equal its parent's size used to crash.
        Fix it by different way of computing delta1 in that case.
        Move some variable decls to inner blocks and add "register".

1986-11-24  Richard M. Stallman  (rms@prep)

        * buffer.h: `modtime' field = 0 now means no info on visited file.
        Nonexistent visited file now represented by -1.

        * fileio.c (Fverify_visited_file_modtime):
        Adjust for changed meaning of `modtime'.

        * fileio.c (Finsert_file_contents):
        If visiting and file doesn't exist, finish visiting (updating
        various buffer slots) before getting error, and set modtime to -1.

        * bytecode.c (Fbytecode): Rarrange all the Bvarref cases to
        share most of the code.  Likewise for Bvarset, Bvarbind
        and Bunbind cases.  Makes it smaller and makes all
        Bvarrefs use the fast inline code.

        * keymap.c (Fdefine_key, Flookup_key):
        Regard chars 0200 and up as equivalent to 2 char sequences
        starting with meta_prefix_char.

        * search.c (search_buffer and callers):
        Complete rewrite from king@kestrel using simplified Boyer-Moore
        algorithm.  Meaning of returned value changed.
        * search.c (bcmp_buffer_translated): No longer used; deleted.

        * search.c (ScanBf, scan_buffer): complete rewrite of ScanBf
        and nearly all is now in scan_buffer, a new function.
        * cmds.c (Fforward_line): Complete rewrite; now calls scan_buffer.

        * search.c (Fscan_buffer): Delete this.
        * bytecode.c (Fbytecode): Just get error if Bscan_buffer is used.

        * ymakefile: Rename TEXT_START_ADDR to LD_TEXT_START_ADDR
        to avoid shortname trouble (ymakefile is processed thru
        the system's cpp).

        * sysdep.c (init_sys_modes): Change #ifdef USG to #ifdef _IOFBF
        around the call to setvbuf.

        * sysdep.c (bcopy): declare it to return int
        so that a forward declaration is not needed
        so there is no problem defining it as a macro.

        * fileio.c (Fwrite_region): Don't try fsync on 4.1bsd.

1986-11-23  Richard M. Stallman  (rms@prep)

        * eval.c (record_unwind_protect, specbind, unbind_to, Funbind_protect):
        struct specbind now has a new slot `func'.  An internal
        unwind-protect stores the C function address there; else it's 0.
        Lisp_Internal_Function data type no longer used.
        Result is no more dependency on where in the address space
        function addresses are found.

        * xterm.c (x_term_init): Better message if server does not
        respond.

        * version 18.31 released.

        * xterm.c, xfns.c (Vxterm1): Lisp var `xterm' now points at
        Vxterm1, which is initialized like Vxterm but never examined.

        * xterm.c (XTread_socket): Use C-x C-@ to indicate mouse click.

1986-11-22  Richard M. Stallman  (rms@prep)

        * bytecode.c (Fbytecode): Turn on immediate_quit for Bnth loop.

        * keymap.c (Fcurrent_global_map): New function
        that returns the current global map.

1986-11-21  Richard M. Stallman  (rms@prep)

        * emacs.c (main, Fdump_emacs): [ALLIANT] save _curbrk
        before dumping and restore when starting dumped Emacs.

        * process.c (wait_reading_process_input):
        [ALLIANT] if select returns with EFAULT, just set Available = 0.
        [always] copy errno right after the select and check the copy
        in case another system call could alter it in between.

        * m-alliant.h, m-mg1.h: New machines supported.

        * ymakefile: Make START_FILES a preprocesser variable
        and don't change it if already defined.
        * m-gould.h: Move special gould value of START_FILES here.

        * fileio.c (syms_of_fileio): Define variable vms-stmlf-recfm.
        * sysdep.c (sys_creat): If vms_stmlf_recfm is nonzero,
        create new files with rfm=stmlf.

1986-11-20  Richard M. Stallman  (rms@prep)

        * eval.c (unbind_catch): Don't ref thru handlerlist if null.

        * keyboard.c (Fusg_suspend_emacs): Delete this.
        * sysdep.c (sys_suspend): Put in USG_JOBCTRL
        method of suspending with ptrace.

1986-11-19  Richard M. Stallman  (rms@prep)

        * xterm.c (x_term_init): Delete attempt to set up
        a handler for SIGIO.  This was normally overridden in
        init_keyboard so it didn't matter; but this handler
        is invalid, so it crashed if it ever did get called.

        * indent.c (compute_motion): Fix screwy #if celerity || ATT3B
        which is invalid.

1986-11-18  Richard M. Stallman  (rms@prep)

        * keyboard.c (command_loop_1):
        Must check to reselect buffer and flush minibuf message
        before trying fast_read_single_key.  Else have lossage
        typing printing chars when minibuf message is displayed.

        * keyboard.c (Fsuspend_emacs):
        Execute suspend-resume-hook value on resumption.

        * lisp.h: Make initialized global.
        * data.c (init_data): Undo last change; not needed now.

1986-11-18  Richard Mlynarik  (mly@prep)

        * emacs.c (main):
        Giving `inhibit_x_windows' an initialisation loses;
        do it explicitly.

        * xfns.c (Fx_rubber_band):
        Make interactive.

1986-11-18  Richard M. Stallman  (rms@prep)

        * dispnew.c (window_change_signal):
        New function to handle SIGWINCH, defined only if SIGWINCH is.
        Turned on in init_display if CANNOT_DUMP or if initialized.

        * data.c (init_data), editfns.c (init_editfns):
        Test initialized, not Vpurify_flag.  Use explicit
        conditionals to avoid the test when CANNOT_DUMP.

1986-11-17  Richard M. Stallman  (rms@prep)

        * buffer.c (Ferase_buffer): Zero the buffer's save_length.
        Future text after erase is unrelated to past text
        so should not suspend auto saving if future text is smaller.

        * buffer.c (init_buffer_once):
        Was passing entire structure to bzero; now pass address.

        * fns.c: Prevent warning in 4.3 where param.h does #define BSD

1986-11-16  Richard M. Stallman  (rms@prep)

        * dispnew.c (init_display): Set window-system to symbol x, not "X".
        * dispnew.c (syms_of_dispnew): Initialize window-system to nil.

        * xfns.c (grey_p): Insert missing commas.
        * emacs.c (main): Fix typo "ihhibit_x_windows".

        * xterm.c (x_term_init): Delay calling XPopUpWindow
        till after Vxterm is set.  Also must include lisp.h.
        Also always set Vxterm if CANNOT_DUMP.

        * xfns.c, xterm.c: Include signal.h before xterm.h
        because on 4.3 both of them define sigmask
        and only xterm.h considers the case that it is already defined.

        * buffer.h: Add BufferSafeCeiling and BufferSafeFloor.

        * process.c (Fprocess_send_eof):
        Now has conditional on DID_REMOTE, which is defined
        if TIOCREMOTE is actually used.

1986-11-15  Richard M. Stallman  (rms@prep)

        * Emacs version 18.30 *

        * xdisp.c (display_string):
        Change minwidth and maxwidth args to mincol and maxcol:
        minimum and maximum absolute hpos to end at.
        Change all callers (all in xdisp).

        * xdisp.c (display_mode_element)
        Similar change of minwidth and maxwidth args.
        This permits considerable internal simplification
        and deletion of the function display_mode_element_1.

        * xdisp.c (decode_mode_spec): Flush unused arg minwidth.
        Change call (in display_mode_element).

1986-11-14  Richard M. Stallman  (rms@prep)

        * process.c (create_process): Don't get a pty
        if the new variable Vprocess_connection_type is not t.
        This is the Lisp variable process-connection-type.

1986-11-13  Richard M. Stallman  (rms@prep)

        * crt0.c: Rename GLOBAL_START_{DOT,NO_DOT}
        to {DOT,NODOT}_GLOBAL_START to avoid shortnames trouble.
        * m-vax.h, m-tahoe.h, m-sequent.h: same change.

        * m-att3b.h: Turn off #define VIRT_ADDR_VARIES
        (kk says no need for it).

        * keyboard.c (Fcommand_execute):
        Zero debug_on_next_call before running the command.

1986-11-12  Richard Mlynarik  (mly@prep)

        * data.c (Fsequencep):
        (sequencep nil) => t

        * xdisp.c (display_string):
        Put a "|" at end of mode-lines of partial-width windows.

        * xdisp.c (various):
        mode-line-format %259 means to pad field to 259, but not to
        truncate it.
        (259 . <format>) also means to pad.
        (-259 . <format>) means to truncate to 259, but not to pad.
        [So (-259 . (259 . x)) means to format x -exactly- 259 chars wide.]

        * dispnew.c (Fding):
        Do not terminate macro-definition if given an argument
        (This is so things like asynchronous process notifications
        can beep but not screw)

1986-11-10  Richard M. Stallman  (rms@prep)

        * fileio.c (Fset_file_modes): [APOLLO] must reset
        modtime after changing the modes.

1986-11-10  Richard Mlynarik  (mly@prep)

        * buffer.c (init_buffer_once):
        There is no lisp variable corresponding to buffer-name

1986-11-10  Richard M. Stallman  (rms@prep)

        * xdisp.c (display_string): Measure new line length
        from start of line body.

1986-11-09  Richard M. Stallman  (rms@prep)

        * lread.c (oblookup, map_obarray):
        Do not use XFASTINT on `next' fields of symbols.
        Fix incorrect sense of test for end of bucket.

        * filelock.c (current_file_owner):
        Fix incorrect sense of test with `kill'
        for death of previous locker.

        * keyboard.c (get_char):
        Arg of -1 now means don't do redisplay.
        Rearrange conditionals so detect_input_pending is not called
        in certain cases.

        * keyboard.c (read_key_sequence):
        New arg nodisplay, nonzero means pass -1 to 1st call to get_char.

        * keyboard.c (command_loop_1):
        After a command that does direct screen updating,
        if buffer_shared is not more than 1,
        pass 1 for nodisplay to read_key_sequence.

        * minibuf.c (Fminibuffer_depth): New function returns
        value of MinibufDepth as a Lisp Int.

        * dired.c (Ffile_attributes): Return inode # as element 10.

        * dispnew.c (update_line):
        Fix bug that noop'd the attempt to let new explicit spaces
        match the implicit space past end of old line.
        Also do not ignore trailing spaces in a highlighted line;
        instead, give it more trailing spaces so it reaches the margin.

1986-11-08  Richard M. Stallman  (rms@prep)

        * data.c (init_data): Don't call signal if purifying.
        * ymakefile: Stop using gould-sigvec.s.
        No longer needed now that signal really isn't called.
        * unexec.c: Eliminate gould-specific code to
        reinitialize gould-sigvec.s.

1986-11-07  Richard M. Stallman  (rms@prep)

        * m-vax.h: Turn off NO_REMAP.

        * sysdep.c (end_of_{data,text}): Omit them if CANNOT_DUMP.

        * fileio.c (Fwrite_region): APOLLO is now like VMS
        in doing the stat after the close.

        * emacs.c (main): If APOLLO, don't call malloc_init.
        We use the system's malloc on the Apollo.

        * editfns.c (init_editfns):
        If CANNOT_DUMP, do all the work, regardless of Vpurify_flag.

        * alloc.c (mark_object): If not SWITCH_ENUM_BUG
        don't cast the switch quantity to int.

        * process.c (pty): [HPUX] Do TIOCREMOTE.

        * unexec.c (makehdr): Code to adjust, default and validate
        data_start and bss_start now common to COFF and non-COFF cases.

        * unexec.c (makehdr): Param SEGMENT_MASK controls rounding of
        memory-address of text-data boundary (default is pagemask).
        [COFF only] SECTION_ALIGNMENT controls rounding of file addresses
        of section beginnings; default is no rounding.
        [non-COFF] ADJUST_EXEC_HEADER is hook to be executed
        before filling in a_text, etc. of the header.

        With these parameters, all known machines can be handled
        with no special conditionals.

        * m-sun1.h, m-sun2.h, m-isi-ov.h: Define SEGMENT_MASK.
        * m-stride.h, m-nu.h, s-umax.h: Define SECTION_ALIGNMENT.
        * m-masscomp.h, m-gould.h, s-hpux.h: Define ADJUST_EXEC_HEADER.
        * m-gould.h: Define A_TEXT_OFFSET = sizeof (hdr)

        * unexec.c (makehdr): Remove ibmrt conditionals
        that adjusted a_text or equivalent, by just copying from
        the old file when NO_REMAP.

        * unexec.c (makehdr): Zero supplied as entry_address
        means copy it from the old file.
        * emacs.c (Fdump_emacs): Pass 0 as entry_address to unexec.

        * unexec.c (copy_text_and_data):
        Two fixes for A_TEXT_OFFSET case:
        Don't decrement `end', and remove (unconditionally)
        the lseek before writing the data segment.

1986-11-06  Richard M. Stallman  (rms@prep)

        * keymap.c (apropos1): Use Fdocumentation_property, not Fget,
        for doc strings of variables.

1986-11-05  Richard Mlynarik  (mly@prep)

        * m-att3b.h:
        #define TEXT_START 0

1986-11-05  Richard M. Stallman  (rms@prep)

        * alloc.c (Fcons, Fmake_symbol, Fmake_marker, gc_sweep):
        The free-list pointers in symbols, conses and markers
        are now C pointers cast as ints and stored in the XFASTINT.
        This may make faster code and in any case avoids problems
        with machines where access with XPNTR relocates the pointer.

        * lread.c (oblookup, map_obarray):
        Use XFASTINT when comparing a Lisp_Object against zero.

        * minibuf.c (read_minibuf):
        If noninteractive, print the prompt, since
        it won't be displayed in the normal way.
        In any case, pass Fread the string rather than a buffer
        when reading an s-expression.

        * auxdoc.c, callint.c, syntax.c, ymakefile:
        Copy fake-DEFUNs from auxdoc.c into comments
        preceding the real DEFUNs for the same functions.
        auxdoc.c is no longer in use.

        * fileio.c (Fread_file_name_internal):
        [VMS only] Return t if file name is null string.

1986-11-04  Richard M. Stallman  (rms@prep)

        * buffer.c (Fget_buffer_create):
        For default-major-mode = nil case, use fundamental-mode
        if old buffer's mode name has a non-nil mode-class property.
        Requires creating Qmode_class to hold the symbol mode-class.

        * s-hpux.h: #undef HAVE_PTYS because of problems with
        scheme running as an inferior on a pty.
        jinx@prep requested this.

        * lread.c (check_obarray & its callers): eliminate 2nd arg.
        Also, don't confuse types int and Lisp_Object.
        If invalid value matches Vobarray, store a valid Vobarray.

        * editfns.c (Fformat): Don't use an initialization for tem
        since it is a Lisp_Object and that can be a struct.

        * minibuf.c (Ftry_completion, Fall_completions):
        Use XFASTINT when testing `bucket' for nonzero or
        setting it to zero.

        * callint.c (Fcall_interactively): If visargs[i] is nil,
        don't try to reference it as a string.

        * doc.c (FSnarf_dcumentation):
        Was assuming exec-path was a string.  Fixed to use
        exec-directory instead, and to validate its data type first.

1986-11-04  Richard Mlynarik  (mly@prep)

        * m-isi.h => m-isi-ov.h

1986-11-04  Richard M. Stallman  (rms@prep)

        * buffer.c (init_buffer_once):
        Avoid casts from int to Lisp_Object (which would lose
        if NO_UNION_TYPE is not defined); use XFASTINT.

1986-11-03  Richard Mlynarik  (mly@prep)

        * xterm.c (stufflines):
        Initialise signal mask.

        * xterm.h:
        Add definition of sigmask

1986-11-01  Richard Mlynarik  (mly@prep)

        * m-sun3.h:
        #undef sun2 ? #define sun3

        * termcap.c:
        Include Dave Genzel @ Unilogic's VMS termcap stuff.

        * termcap.c:
        #ifdef emacs ? #include config.h

        * fileio.c, fns.c, m-vax.h:
        Fixes for VMS cpp. (#undef foo -> #ifdef foo ? #undef foo)

1986-10-31  Richard Mlynarik  (mly@prep)

        * vmsmakefile (new file)

        * crt0.c, unexec.c, m-isi.h (new file):
        Integrated Solutions 68k port.

1986-10-30  Richard Mlynarik  (mly@prep)

        * m-vax.h (USG-only changes):
        #define NO_REMAP (I don't understand exactly why one needs to do
        this -- is there an unexec bug?)
        #define TEXT_START = 0, since C code can't access `start' symbol.

        * lisp.h, sysdep.c, indent.c, m-att3b.h:
        USG and att3bxxx changes from karl@ohio-state.arpa
        Define NO_REMAP, undefine LD_SWITCH_MACHINE

        * buffer.c (Fbuffer_local_variables):
        Return correct values when buffer is selected-buffer

        * keyboard.c (cmd_error):
        non-zero exit status on error.

        * filelock.c:
        Don't get MPV if buffer-file-name isn't a string or nil.

1986-10-29  Richard Mlynarik  (mly@prep)

        * keymap.c (Flookup_key, Fdefine_key):
        Don't bomb on zero-length strings.

        * filelock.c (Ffile_locked_p):
        New function.

        * window.c (Fset_window_hscroll):
        Don't inhibit redisplay optimisations if hscroll is same.

        * ymakefile:
        rm ../etc/DOC to avoid make-docfile overwriting any files which
        were linked to it (unix sucks)

1986-10-28  Richard Mlynarik  (mly@prep)

        * vmsmap.c, termcap.c, sysdep.c, config.h-dist:
        VMS changes from Sasaki

        * termcap.c (tgetent):
        Make sure `indirect' initialised.

        * xfns.c (grey_p and callers):
        New function to compensate for ugly chauvinistic American
        spelling.

        * keymap.c (describe_*):
        Don't mention keys in global map which are shadowed by
        local bindings

        * dispnew.c, sysdep.c, dired.c:
        Eschew ^#if.*defined (for VMS' sake)

        * keymap.c (Fkeymapp, Flookup_key):
        Add QUIT test.

1986-10-27  Richard Mlynarik  (mly@prep)

        * callproc.c, fileio.c:
        VMS changes (make environ noshare, don't call fsync)

1986-10-26  Richard Mlynarik  (mly@prep)

        * sysdep.c, unexec.c, ymakefile:
        Gould changes. (marick%cthulhu@gswd-vms.ARPA)

        * gould-sigvec.s:
        New file.

        * m-gould.h:
        New file (for utx/32 2.0 and above)
        Old file renamed m-ogould.h.  See etc/MACHINES
        for more information.

        * unexec.c (make_hdr):
        Typo "#ifdef A_TXT_OFFSET" should be "A_TEXT_OFFSET"

1986-10-22  Richard Mlynarik  (mly@prep)

        * keyboard.c, keymap.c:
        Move Fexecute_extended_command from keymap.c to keyboard.c rather
        than make kludgy static vars global.

        In Fexecute_extended_command record `(this-command-keys)' and
        `last-command' accurately.

        * emacs.c (main), dispnew.c (init_display):
        Add -nx flag, meaning to inhibit X windows and just run in the
        current virtual terminal.  (Perhaps there should be a generic flag
        to disable any special window-system code)
        Add Vwindow_system variable.

        * search.c (Fstring_match):
        Do range-checking on `start' argument.

1986-10-21  Richard Mlynarik  (mly@prep)

        * xterm.c, xfns.c (x_term_init, x_change_display):
        Share command code, and make that code use
        {request,unrequest,init}_sigio

        * term.c (init_display):
        Determine whether we are under X by whether DISPLAY env var is
        set, not by whether TERM is "xterm"

        * xterm.c (x_term_init):
        Remove (if (!initialized) ...) test.
        Set Vxterm directly, rather than calling setxterm (flush latter)

        * lread.c (various):
        Changes for when can't take XSYMBOL of 0 and to make check_obarray
        code work correctly.

1986-10-20  Richard Mlynarik  (mly@prep)

        * m-stride.h, process.c, sysdep.c, unexec.c:
        Stride changes.

1986-10-18  Richard Mlynarik  (mly@prep)

        * buffer.c:
        Made default-major-mode same as (default-value 'major-mode) to
        avoid user confusion.

1986-10-17  Richard Mlynarik  (mly@prep)

        * cmd.c, process.c:
        Doc fixes from sjk

        * buffer.c (init_buffer_once):
        Do x = (Lisp_Object) 1 instead of (int) x = 1 for benefit of vms
        and pyramid compilers.

        * minibuf.c (Ftry_completion):
        Test (bucket), not (XSYMBOL (bucket)) since Lisp_Objects may not
        be able to be 0 on some implementations.

        * editfns.c (Fformat):
        Have to duplicate doprnt's work of decoding the
        format-string top ensure that don't die on (format "%s" 0)
        Also, use prin1-to-string to get PR for random objects

        * m-celerity.h:
        HAVE_ALLOCA

1986-10-16  Richard Mlynarik  (mly@prep)

        * m-att3b.h:
        New file -- replaces m-3b20.h

        * alloca.c, fileio.c, indent.c, unexec.c, ymakefile:
        Bugs and fixes for att3b (and usg)
        Use a global static var rather than a local one
        to record the last block allocated by alloca.

        * fileio.c (Fverify_visited_file_modtime):
        If a formerly-nonexistent file has been created since we ``found''
        it, say there is a discrepancy.

1986-10-14  Richard Mlynarik  (mly@prep)

        * callint.c (Fprefix_numeric_value):
        Doc typo.

        * malloc.c, regex.c:
        Nuke "#if defined..." for VMS

1986-10-12  Richard Mlynarik  (mly@prep)

        * xdisp.c (many functions):
        Rearrange the way in which the mode-line stuff is hacked:
        in particular, display_string doesn't have a special-case
        for %-escapes -- this is now all done in display_mode_element.
        This was necessary to make %M work correctly.
        Also, fix a few bugs (buffer-name truncation could cause
        core-dump)

        Dike out global-minor-modes.  This wasn't actually being used by
        anything (due to a bug) and wasn't even being initialised!
        minor-mode-alist does what this thought it was doing.

1986-10-11  Richard Mlynarik  (mly@prep)

        * doc.c (FSnarf_documentation):
        In CANNOT_DUMP case wasn't treating PATH_EXEC as a path --
        now uses exec-path instead.

        * lisp.h:
        Get rid of #if defined... for benefit of vms

1986-10-09  Richard Mlynarik  (mly@prep)

        * abbrev.c (Funexpand_abbrev):
        Preserve position of point.

1986-10-07  Richard Mlynarik  (mly@prep)

        * s-hpux.h:
        #define HAVE_PTYS

        * alloca.c:
        Make some attempt to work in the USG case where "#define static"
        is done.

        * keyboard.c:
        #undef FIONREAD in HPUX (seems to be unimplemented or broken)
        The only reason this ever seemed to work was because of a bug in
        v17.

        * sysdep.c (child_setup_tty):
        HPUX was defaulting terminal speed to 300 baud.

        * alloca.s:
        New hp9000 C function calling sequence.

        * fileio.c (Fexpand_file_name):
        Fix bug in (expand-file-name ".." "/foo/")

        * callint.c (Fcall_interactively):
        Remove extreme weirdness of storing (int) "" where a Lisp_Object
        was expected (in visargs)
        Slighly more informative error message for bad interactive code
        letter.

        * abbrev.c (Funexpand_abbrev):
        Was deleting length of original text rather than length of
        expanded abbrev.

        * abbrev.c (Fexpand_abbrev):
        Add an Fundo_boundary so that undo works to unexpand
        abbrevs.

1986-10-03  Richard M. Stallman  (rms@prep)

        * ymakefile: Make LIBS_STANDARD the last libs loaded.

        * xterm.c: Load sys/types.h explicitly if xterm.h doesn't do it.

        * keyboard.c (interrupt_signal):
        Delete suprious `)' in HAVE_X_WINDOWS case.

1986-10-03  Richard Mlynarik  (mly@prep)

        * sysdep.c (sys_suspend -- fake suspend case)
        Missing comment */ terminator

1986-10-02  Richard Mlynarik  (mly@prep)

        * search.c:
        There may be `holes' in regexp registers after a match: consider
        matching "z" against "\\(\\(xyzzy\\)\\|\\)\\(z\\)" -- then
        register 2 is unmatched, whilst registers 0, 1 and 3 have matches.
        Fix register-hacking code in Flooking_at, search_buffer,
        Fmatch_data, Fstore_match_data.

        * crt0.c:
        HP200 floating-point (sigh -- needed for load-average)

        * sysdep.c (HPUX perror):
        Should be "perror" not "_perror" -- communication foulup, sorry.

1986-10-01  Richard M. Stallman  (rms@prep)

        * marker.c (Fcopy_marker): Was stupidly failing to put
        the new marker on the buffer's chain.  Fix to go thru Fset_marker.
        This really does fix the crashes in GC.

        * sysdep.c (for HPUX): Define utimes and _perror as no-ops.

        * marker.c (Fset_marker): If attempt to set marker
        to point to a dead buffer, set it to point nowhere.

        * buffer.c (Fkill_buffer): Clear out the buffer's markers chain.

        * keyboard.c (interrupt_signal):
        Turn off the double-C-g feature when running under X windows.

1986-09-29  Richard M. Stallman  (rms@prep)

        * search.c: search_regs elements are now the correct character
        numbers or string indices.  1 is not added when they are used;
        instead the values are corrected just after regex library returns.
        The loops to do this exit at the first -1 (unused register).

        * alloca.s: Convert HP9000 code to new assembler syntax.
        Rename flag hp9000s200 to hp9000. [mly]

        * crt0.c: Convert HP9000 code to new assembler syntax. [mly]

        * buffer.c (Fdelete_buffer_internal): Unused; deleted.

        * marker.c (unchain_marker):
        Dump core if first marker on buffers marker list
        does not have that buffer as its buffer.
        May help find bug where after GC a buffer's first marker
        was on the free list.

        * keyboard.c (cmd_error): In -batch, die after error message.

        * bytecode.c (Fbytecode):
        Open-code Bvarref with one-byte arg.

        * callproc.c (init_callproc): Use only first element of
        Vexec_path to make Vexec_directory.  [mly]

1986-09-28  Richard M. Stallman  (rms@prep)

        * data.c (Fsymbol_value): use assq_no_quit instead of Fassq.
        * fns.c (assq_no_quit): Like Fassq but never quits or gets errors.

        * keyboard.c (quit_throw_to_get_char):
        * eval.c (Fsignal):
        Call quit_error_check.
        * dispnew.c (quit_error_check):
        Dump core if DesiredScreen is not full of zeros.
        This is to catch the bug wherein DoDsp called from get_char
        died because DesiredScreen was full of lines already.

1986-09-26  Richard Mlynarik  (mly@prep)

        * regex.c (re_match_2), search.c (various):
        The registers modified by re_{search,match}{,_2}
        now have start and end of -1 if that register was
        not used in the match found.
        Fmatch_data now returns a list of twice the number of registers
        -actually- used (including register 0, for the whole match)

        * process.c (Fwaiting_for_user_input_p):
        New function for use by process-filters and sentinels
        so they can determine if it might be an appropriate time
        to try to make some sort of asynchronous notification.

1986-09-26  Richard M. Stallman  (rms@prep)

        * keymap.c (syms_of_keymap): Add missing defsubr
        for Fdefine_prefix_command,

        * abbrev.c (Fexpand_abbrev): Save original text of the abbrev
        in Vlast_abbrev_text.
        * abbrev.c (Funexpand_abbrev): Restore the original text.
        Thus expand and unexpand preserves case.
        Also, if there is no abbrev to unexpand, do nothing.
        * abbrev.c (syms_of_abbrev):
        Turn Lisp variables last-abbrev and last-abbrev-text back on.
        * abbrev.c (Flast_abbrev_expansion): Delete this function.

1986-09-25  Richard M. Stallman  (rms@prep)

        * window.c (Fwindow_width): return a value one smaller
        for partial-width windows that contain a | border.

        * macros.c: Remove Fname_last_kbd_macro (moved to macros.el).

1986-09-25  Richard Mlynarik  (mly@prep)

        * unexec.c:
        Include a.out.h before getpagesize.h, since EXEC_PAGESIZE
        may be defined in a.out.h

        * dispnew.c:
        Only define TIOCOUTQ as TCOUTQ if the latter as defined,
        so that ifdef conditionals on the former work as expected.

        * sysdep.c (sys_suspend):
        Needed to include buffer.h for getting cwd when doing a fake suspend.
          (for system v and other complete losers)
        Rather than doing that include (which tickled some cretin-compiler
        bugs) look up bf_cur->default_directory by
        Fsymbol_value (Qintern ("..."))

1986-09-24  Richard Mlynarik  (mly@prep)

        * editfns.c (Fregion_beginning, Fregion_end):
        Share common code (this doesn't have to be so fast that the
        extra function-call could hurt)

        * editfns.c, window.c, callint.c, buffer.c:
        Don't allow bf_cur->mark to be nil.
        Instead, to indicate that the mark is not set,
        make the marker not point at anything.
        This simplifies life quite a lot.

        Add sanity checking in case user sets mark to point to different
        buffer (he could do this by side-effecting (marker-mark) stupidly)

        Change definition of marker-mark so that it returns a marker
        object which doesn't point anywhere when there is no mark,
        rather than nil.  This is more useful.

        * editfns.c, bytecode.c.
        Move set-mark, mark to lisp code.

        * editfns.c (Fset_mark)
        Not interactive.

1986-09-23  Richard M. Stallman  (rms@prep)

        * crt0.c, m-hp9000.h: rename hp9000s200 to hp9000.
        * m-hp9000.h: New name for m-hp200.h.
        * unexec.c (for hpux): define MY_ID from HP9000S200_ID
        if that exists; else use model.h.


1986-09-21  Richard M. Stallman  (rms@prep)

        * search.c (search_buffer): Fix backwards condition
        in whether the translate table can be ignored.

        * process.c (Fprocess_send_string): Name of function for Lisp
        had a typo.

        * eval.c: When looping getting the function definitions of
        symbols, check for quit.

        * lisp.h: Restore old declaration of `getenv'
        since removing it causes warnings in many places.

        * minibuf.c (scmp): Return correct value.

1986-09-21  Richard Mlynarik  (mly@prep)

        * editfns.c (Finsert_char):
        New function.  There are a lot of places in lisp code
        which want to insert multiple copies of a constant char.
        This is a faster way of doing it, and doesn't cons
        (unlike (insert (make-string n c)))

1986-09-21  Richard M. Stallman  (rms@prep)

        * process.c (make_process): Code to compute # elts in
        vector to make a Lisp_Process had several errors:
        Took size of pointer rather than of struct Lisp_Vector
        and had wrong sign compensating for first element.

        * fileio.c (directory_file_name): If arg is "/", return "/".

1986-09-20  Richard M. Stallman  (rms@prep)

        * minibuf.c (Fdisplay_completion_list):
        New Lisp-callable function replaces minibuffer_completion_help_1,
        with a little new feature: elements of the completion list
        may be lists of two strings, and if so the two strings
        are printed in immediate succession.

1986-09-19  Richard Mlynarik  (mly@prep)

        * minibuf.c (scmp and callers)
        Don't be fazed by '\0' in strings.

        * lisp.h, search.c, minibuf.c
        Use downcase_table

1986-09-18  Richard Mlynarik  (mly@prep)

        * ymakefile, emacs.c, callproc.c, process.c, fns.c
        Install MAINTAIN_ENVIRONMENT conditional to call environ.c.

1986-09-16  Richard M. Stallman  (rms@prep)

        * keymap.c (where_is_in_buffer): Fix bug in checking for shadowed
        keys: do Flookup_key only on local map, and ignore value if
        it is a number (that means key is locally undefined).

1986-09-15  Richard Mlynarik  (mly@prep)

        * buffer.c (Fbury_buffer)
        Make this function interactive (bury current buffer)
        Do error-checking on arg.

1986-09-15  Richard M. Stallman  (rms@prep)

        * emacs.c (main): Eliminate VMS -nl switch.
        Instead, `-map FILE' says to map data file FILE;
        no switch means don't map any file.
        Can call mapin_data directly since exact file name is given.

        * emacs.c (undump_emacs): Delete this.

        * emacs.c (main): Make it work to use more than one of the
        special switches (-batch, -t, -map).

1986-09-14  Richard M. Stallman  (rms@prep)

        * Renamings for VMS.
        config.h.dist => config.h-dist
        paths.h.dist => paths.h-dist
        [ms]-*.*.h => [ms]-*-*.h
        s-usg5.2.2.h => s-usg5-2-2.h

        * Some new files for VMS.
        compile.com, link.com, precomp.com, ccom.com,
        testemacs.com, build.com are command files.
        temacs.opt is a linker control file.
        VMSBUILD gives info on how to use them.
        README describes what this directory is for.

1986-09-13  Richard M. Stallman  (rms@prep)

        * sysdep.c (reset_sys_modes):
        Delete never-used VMS & SIGIO conditional.
        Call reset_sigio just once.  No need to clear FASYNC here
        now that init_sigio makes sure it is clear in old_fcntl_modes.

        * eval.c (top_level_value, top_level_set):
        These are new names for Fglobal_value and Fglobal_set,
        which are no longer callable from Lisp.
        They are also commented out.

1986-09-12  Richard Mlynarik  (mly@prep)

        * xfns.c (Fx_rebind_key)
        Fix typo.

        * mocklisp.c:
        Delete ml-substr.  Move to mlsupport.el

        * buffer.c
        The real work of setting up mode_line_default is done in
        loaddefs.el.

        * lread.c, data.c, marker.c, window.c
        Flush the last callers of defalias.  Flush defalias.
        (Use fsets in subr.el instead)

1986-09-11  Richard Mlynarik  (mly@prep)

        * emacs.c (main)
        Under X, accept "-display" switch as synonym for "-d"

        * eval.c (spedcbind)
        Don't make Lisp_Buffer_Objfwd's buffer-local when just binding.
        (so now (let ((case-fold-search t))) doesn't force buffer-localness)
        However, setting a binding will still make it buffer-local.
        (ie (let ((case-fold-search t)) (setq case-fold-search t))
         will cause case-fold-search be buffer-local even outside the let)

        * xfns.c:
        Preserve studlycaps: "Gnuemacs" => "GNU Emacs"

        * Various
        Flush last users of LISTP => CONSP

        * buffer.h
        Make backed_up a Lisp_Object, since it is one!
        Make abbrev_table a magic-local-variable.

        * alloc.c (mark_buffer)
        Simplify, simplify.

        * buffer.h:
        Reorder elements of struct buffer so that Lisp_Object
        slots are contiguous from buffer.name through to the
        end of the buffer.  All slots before buffer.name are
        not Lisp_Objects (except buffer.markers, which is gc-magic)

        Eliminate useless buffer.number slot.

        * buffer.c (Fbuffer_number):
        delete.

1986-09-10  Richard M. Stallman  (rms@prep)

        * process.c (Fsend_{string,region}): rename as Fprocess_send...
        and change names of Lisp function.  Old names now aliases in subr.el.

1986-09-10  Richard Mlynarik  (mly@prep)

        * buffer.c
        New struct buffer_local_symbols.
        staticpro buffer_defaults, buffer_local_symbols.

        * lread.c (defvar_per_buffer)
        Hack buffer_local_symbols

        * buffer.c (Fbuffer_local_variables)
        (a) Fcopy_alist so don't return any shared list structure
        (b) Include names and values of Lisp_Buffer_Objfwd locals.

        * alloc.c (FGarbage_collect):
        Don't mark buffer_defaults specially, as it is now in staticvec

        * dired.c (Fdirectory_files):
        Optional third argument match is a regexp specifying
        to only return files whose names contain a match for that regexp.
        [eg ``(directory-files "/u2/emacs/" nil "\\`[^#]")'']

1986-09-10  Richard M. Stallman  (rms@prep)

        * alloc.c (Fgarbage_collect): Use open code instead of Fnthcdr
        to avoid possibility of error.

        * lread.c (Fload, load_unwind): The Lisp_Internal_Stream
        now points to a word got with xmalloc and that points to the FILE.
        On Elxsi, the FILE address is not in the part of the address
        space that Lisp_Object pointers can reach.  New way can't lose.

1986-09-09  Richard M. Stallman  (rms@prep)

        * crt0.c: Add _start for elxsi.

1986-09-07  Richard Mlynarik  (mly@prep)

        * minibuf.c (read_minibuf)
        gc-protect the saved data!
          I'm don't know why this doesn't just bind help-form
          (and current-prefix-arg) esp since there is already an
           unbind_to which would help us do this.
           Since I don't know why the `bindings' are done this way,
           I'm leaving the unwind-protect hair, and adding GCPRO hair.

        * minibuf.c (read_minibuf, read_minibuf_unwind)
        preserve the value of current-prefix-arg.

        * minibuf.c:
        Eliminate read_minibuf_string.
        Move defalias for read-input to subr.el

        * callint.c, fns.c, lisp.h
        Call read_minibuf instead of read_minibuf_string.

1986-09-04  Richard Mlynarik  (mly@prep)

        * fns.c (Fy_or_n_p, Fyes_or_n_p)
        Beep if the user types an invalid response.

1986-09-03  Richard M. Stallman  (rms@prep)

        * dispnew.c (update_screen):
        Take out previous change.

        * xdisp.c (DoDsp): Move call to request_sigio
        after update: so it cannot be bypassed.

        * sysdep.c (init_sigio): set old_fcntl_flags here
        only once; don't change it in request_sigio.
        * sysdep.c ({un,}request_sigio):
        Set interrupts_deferred while SIGIO is unrequested.
        Abort if FASYNC is already set when request_sigio is called.
        * keyboard.c (get_input_pending):
        Always do FIONREAD if interrupts_deferred.

1986-09-01  Richard M. Stallman  (rms@prep)

        * xterm.c/xfns.c: Many changes from rlk,
        including using sigblock/sigsetmask to block signals
        instead of turning handler off and on.

        * dispnew.c (update_screen):
        If interrupt input, wait while output gets written
        before returning.  If observed loss of output really is
        a kernel bug, this may make it stop.

1986-08-31  Richard M. Stallman  (rms@prep)

        * keymap.c (where_is_in_buffer):
        Use Fequal rather than EQ to test for a match
        if the object being searched for is a cons cell.

1986-08-30  Richard M. Stallman  (rms@prep)

        * data.c (Fsetq_default): new function.

1986-08-28  Richard M. Stallman  (rms@prep)

        * xdisp.c (display_mode_element):
        Cons cell whose car is a symbol now means
        (SYMBOL IF_TRUE_DISPLAY IF_FALSE_DISPLAY)
        and is equivalent to IF_TRUE_DISPLAY if SYMBOL's value is non-nil
        or to IF_FALSE_DISPLAY if SYMBOL is unbound or has value nil.
        * buffer.c (syms_of_buffer): update documentation for that.

1986-08-25  Richard M. Stallman  (rms@prep)

        * fns.c (merge): Swap the arguments to the sort predicate
        so as to use it to compute <= rather than <.
        Sort had been anti-stable; now it is stable.

        * editfns.c (Fuser_uid, Fuser_real_uid):
        New functions that return values of geteuid and getuid system calls.

        * dired.c (Ffile_attributes):  Value has additional element
        t iff file gid would change if Emacs deletes it and recreates it.

        * xdisp.c (display_mode_element):
        If element is a list and its car is a list,
        process all list elements recursively and concatenate them.
        Makes alists work.

        * xdisp.c (display_mode_string): New element type %n
        prints ` Narrow' and ` Def' if appropriate.
        * buffer.c (syms_of_buffer): Fix documentation of mode-line-format.

        * undo.c (Fundo_more):
        Fix bugs in checking len and pos for being in bounds.

        * eval.c (Fuser_variable_p):
        If documentation property is a number,
        negative means it's a user variable.
        * doc.c (Fdocumentation_property):
        Use abs value of property as the file position.
        * doc.c (FSnarf_documentation):
        For variables, store negative property if string starts with `*'.

        * editfns.c (Finsert_buffer_substring):
        Implement inserting part of a buffer into itself.

1986-08-24  Richard M. Stallman  (rms@prep)

        * xterm.c, xfns.c, sink.h: Installed latest changes from
        Athena, and fixed up formatting conventions.

1986-08-23  Richard M. Stallman  (rms@prep)

        * eval.c (unbind_catch): Restore gcprolist from the catchtag.

1986-08-21  Richard M. Stallman  (rms@prep)

        * fileio.c (barf_or_query_if_file_exists):
        New second arg non-0 says query; do not call Finteractive_p.

        * fileio.c (Frename_file, Fcopy_to_file, Fadd_name_to_file,
        Fmake_symbolic_link):
        Interactive spec now says `p' for the third arg.
        If third arg is number, do call barf_or_query_if_file_exists
        but pass nonzero second arg in that case.

        * eval.c (Finteractive_p): Skip the innermost frame
        when examining the stack.  This makes the right thing happen
        if called from Fbyte_code.

1986-08-21  Richard Mlynarik  (mly@prep)

        * process.c (handle_process_output):
        do a set-buffer back to original buffer
        after calling a process' filter function so that
        all filter functions needn't save-excursion.

        * keymap.c (where_is_in_buffer):
        Don't blow out if buffer has no local map.

1986-08-21  Richard M. Stallman  (rms@prep)

        * emacs.c (main): Eliminate references to environ.c.

        * callproc.c (Fcall_process): Pass child_setup
        the standard Unix environment.
        * process.c (create_process): likewise.

        * bytecode.c (Fbyte_code): At end, abort if specpdl
        is not back to same level it had on entry.

        * eval.c (unbind_catch):
        New way to unbind for throw.  Pops catches, handlers
        and bindings, in one synchronized pass.  Thus, when an
        unwind-protect is executed, all catches and handlers
        outside of it are still in effect.
        Also restore various static variables from the catchtag
        being unbound.  struct catchtag has two new fields,
        gcpro and pdlcount.

        * eval.c (Fthrow, Fsignal):  Use unbind_catch before longjmp.

        * eval.c (internal_catch): No need to restore anything
        from the catchtag after throw, because unbind_catch does it all.
        Must set up pdlcount and gcpro fields.
        * eval.c (internal_condition_case, Fcondition_case):
        Changed like internal_catch.
        * eval.c (Fcatch): use internal_catch to do the work.

        * eval.c (Fsignal): If no handler applies, try calling
        the Lisp debugger; if that fails, throw to top-level.
        Don't call `debugger'.

        * keyboard.c (debugger): Delete this function.

1986-08-20  Richard M. Stallman  (rms@prep)

        * Gap motion can now quit!

        * insdel.c (move_gap): new name for GapTo.  Callers changed.

        * insdel.c (InsCStr):
        * fileio.c (Finsert_file_contents):
        Call move_gap before calling record_insert.
        * insdel.c (del_range):
        Don't adjust point until after all possible errors detected,
        which means after gap is moved.

        * insdel.c (gap_right, gap_left):
        Check every 32000 chars for pending quit.
        Also speed up char-copy inner loop.

        * lisp.h (QUITP): New macro, nonzero if ought to quit now if poss.

1986-08-20  Richard M. Stallman  (rms@prep)

        * undo.c (Fundo_more):
        Fix bug that was setting point to `len' field, not `pos' field.
        Share the error-checking code between all three types of
        undo record that actually make changes.

        * xdisp.c (display_mode_element):
        Fix a couple of silly bugs.

        * lread.c: New variable-defining functions
        defvar_int, defvar_lisp, defvar_bool and defvar_per_buffer
        are called by the new DEFVAR... macros.  They ignore the
        doc-string argument.

        * lisp.h: Define macros DEFVAR_LISP, DEFVAR_INT, DEFVAR_BOOL
        and DEFVAR_PER_BUFFER.  They expand into calls to
        defvar_lisp, etc.

        * all .c files:
        All Def...Var renamed to DEFVAR... in syms_of_....

        * doc.c (FSnarf_documentation): Understand new DOC format
        where doc for function foo is named Ffoo and doc for variable foo
        is named Vfoo.  When doc for a variable is found, store the
        file-position in DOC on the variable-documentation property.
        * doc.c (Fdocumentation_property): New Lisp function,
        like `get' except that if the value is a positive integer
        it is taken as a position in the DOC file and a string is read
        from that file.

        * filelock.c: correct spelling "supercession" -> "supersession".

        * undo.c: Rename RecordInsert as record_insert, and
        likewise RecordDelete, RecordChange and RecordChange1.
        * casefiddle.c, editfns.c, fileio.c, insdel.c: change callers.

1986-08-19  Richard M. Stallman  (rms@prep)

        * xdisp.c (display_mode_element):
        Change the interpretation of symbols and lists in elements:
        if a symbol's value is a string, output that string literally;
        a list is a concatenation of all elements if the car is a string
        or a conditional of the cdr if the car is a symbol.

        * undo.c (Record...):
        Remember buffer->modtime as the "length" of the Uunmod.
        If point is at the end of a range deleted or changed,
        record that as the "position" of the range and make the length
        negative.

        * undo.c (Fundo_more):
        Undoing Uunmod does not mark as unmodified unless its
        remembered modtime matches the buffer's current modtime.
        Also handle case where length is negative in Uinsert, Uchange.

1986-08-18  Richard Mlynarik  (mly@prep)

        * xdisp.c (display_mode_line):
        XSTRING->data, not XSTRING
        Fix another typo.

1986-08-17  Richard M. Stallman  (rms@prep)

        * buffer.c (syms_of_buffer):
        Change doc for mode-line-format.

        * xdisp.c (display_mode_line, display_mode_element):
        Allow buf->mode_line_format to contain lists and symbols
        allowing computation and concatenation to produce the mode line.
        (Note that evaluation is not allowed; it would be unsafe.)
        display_mode_element is the recursion point for this.

1986-08-17  Richard Mlynarik  (mly@prep)

        * emacs.c (main)
        Move init_environ up.

        * window.c (Fwindow_point)
        typo.

        * environ.c
        New function getenv replaces un*x getenv

1986-08-17  Richard M. Stallman  (rms@prep)

        * window.c (Fwindow_point):
        When WINDOW is the selected window and its buffer is selected too,
        return current value of point.  The pointm field of the window
        is not meaningful in such cases.

        * unexec.c (write_segment):
        If hit nonexistent page, must write zeros, not return.

1986-08-17  Richard Mlynarik  (mly@prep)

        * callproc.c, process.c (Fcall_process, create_process)
        Use `alloca' versions of environment-hacking functions
        (ie current_environ_size and get_current_environ rather than
        current_environ and free_environ)

        * emacs.c (main):
        Call syms_of_environ, init_environ.

        * config.h., config.h.dist
        Increase PURESIZE again (sigh)

        * unexec.c (write_segment):
        Kludgey coercions ("(int)") to get this line to compile:
         nwrite = (((int) ptr + 128) & ~127) - (int) ptr;
        Also changed incorrect ~128 to ~127.

        * process.c:
        New function Fprocess_list.

1986-08-17  Richard M. Stallman  (rms@prep)

        * crt0.c, alloca.s: Remove hack_sky (special for sun2)
        and the call to it.  No longer needed since floating point
        is no longer used.

        * unexec.c: New compiler flag A_TEXT_OFFSET is defined
        for machines in which the a.out file header counts as the
        first few bytes of the text segment.  The definition of
        A_TEXT_OFFSET would normally be sizeof (HDR).  It has
        other terms added in on some machines (sequent).

1986-08-16  Richard Mlynarik  (mly@prep)

        * eval.c (Fmacroexpand)
        Use car of nthcdr, not nth.

        * fns.c
        Define Fcopy_alist (used to be in subr.el)
        Move Fnth to subr.el

        * ymakefile
        Include environ.c

        * callproc.c, process.c (child_setup, Fcall_process, create_process):
        Take/pass environment arg.

        * environ.c:
        New file

        * sysdep.c:
        Move VMS sys_getenv to environ.c

        * editfns.c:
        Move getenv to environ.c

1986-08-16  Richard M. Stallman  (rms@prep)

        * xdisp.c (display_text_line):
        * indent.c (current_column, ToCol, position_indentation):
        * indent.c (Fmove_to_column, compute_motion):
        Bring tab_width in range if it is very large.

1986-08-15  Richard M. Stallman  (rms@prep)

        * fileio.c (Fwrite_region):
        Do the fsync before the fstat; that may prevent what appear
        to be spurious "file has changed on disk" warnings.
        Update bf_cur->modtime before signaling "IO error writing"
        to avoid more such warnings.

        * Make ctl-arrow, case-fold-search, etc. behave exactly
        as if they had been made local with make-variable-buffer-local.
        The default values live in struct buffer buffer_defaults.
        They also live in buffers that do not have local values.
        Each buffer has a local_var_flags slot with a bit for each
        variable, saying which variables are local in that buffer.

        * buffer.h: New buffer slot local_var_flags.
        * buffer.c: New structures buffer_defaults and buffer_local_flags.
        (init_buffers_once): store default values for local slots
        into buffer_defaults.
        (reset_buffer_variables): Copy default values from buffer_defaults
        into the buffer being reset.
        (syms_of_buffer): Variables default-ctl-arrow, etc., now
        forward to slots in buffer_defaults.

        * data.c (Fset, Fset_default, Fdefault_value,
        Fkill_local_variable):
        Know that a Lisp_Buffer_Objfwd has default value
        if the buffer_local_flags slot is nonzero,
        and a buffer uses that default unless its local_var_flags
        contains the bit of the buffer_local_flags for the slot.

        * alloc.c (Fgarbage_collect): Call mark_buffer on buffer_defaults.

1986-08-14  Richard M. Stallman  (rms@prep)

        * unexec.c (copy_text_and_data):
        Write text and data separately if COFF (just as if not COFF).
        (make-hdr): if COFF and NO_REMAP, don't alter some f_ohdr fields.

1986-08-14  Richard Mlynarik  (mly@prep)

        * editfns.c (getenv)
        Make getenv useful interactively.
        Move defaliases to fsets in subr.el

1986-08-14  Richard M. Stallman  (rms@prep)

        * unexec.c: unexec_data_start records the ultimate
        corrected data_start from make_hdr; copy_text_and_data
        starts writing data segment from that address.

1986-08-13  Richard M. Stallman  (rms@prep)

        * buffer.c (Fkill_buffer): Combine Fdelete_buffer_internal
        into this function.  Simplify.  Just return immediately
        if attempted to kill the minibuffer.

        * lisp.h: Define XSETPNTR and make XSETCONS (etc) use it.
        By default XSETPNTR is the same as XSETUINT.

        * lread.c (oblookup, map_obarray):
        Use XUINT, not XSYMBOL, to check for zero to detect end of bucket.
        On machines where all pointers have high bits set,
        XSYMBOL would never return zero.

        * alloc.c: change vars most_negative_fixnum and dont_copy_flag
        to constant macros ARRAY_MARK_FLAG and DONT_COPY_FLAG,
        defined normally based on INTBITS but overridable by m-*.h.

        * process.c (handle_process_output):
        Write in buffer even if buffer is read-only.

        * fileio.c (barf_or_query_if_file_exists):
        Rearrange: don't use comma around calls to NULL,
        so can compile using union type.

1986-08-12  Richard Mlynarik  (mly@prep)

        * buffer.c (SetBfp, syms_of_buffer)
        Dike out debug-check-symbol code.  I believe that this bug has
        evaporated.

        * fileio.c (barf_or_query_if_file_exists)
        ! => !NULL.  Also use local variable for Lisp_object for bd
        compilers.

1986-08-11  Richard Mlynarik  (mly@prep)

        * buffer.c (Fbarf_if_buffer_read_only)
        Include buffer in call to Fsignal.

        * print.c (Fwrite_char)
        Really default stream to standard-output.

1986-08-10  Richard Mlynarik  (mly@prep)

        * eval.c (and abbrev.c, buffer.c, callint.c, cmds.c, keyboard.c, lread.c, lisp.h)
        Allow Fapply to take an &rest arg, the last of which is spread.
        (So (apply '+ 1 '(2 3)) => 6)
        Make Ffuncall do the work for Fapply, rather than duplicating all
        that code.  Define apply1 for c code which needs it.  Define call0
        for c code which thought it needed Fapply.

1986-08-08  Richard Mlynarik  (mly@prep)

        * ymakefile
        Don't assemble alloca.s if HAVE_ALLOCA.
        Even though the whole of this file is contained in a
        `#ifndef HAVE_ALLOCA ... #endif' a disgusting bug
        in cc (at least here, vax 4.2bsd) meant that this
        file was being assembled even though cc was passed
        the -E flag!  Gag me with a unix-pinhead.

        * m-vax.h
        Define HAVE_ALLOCA if BSD

        * unexec.c (write_segment)
        Rename variable `fd' to `new' for macro PERROR.

1986-07-30  Richard M. Stallman  (rms@prep)

        * fileio.c (Fwrite_region): add call to fsync before close.

        * xdisp.c (redisplay_window): Don't look at ->start
        in windows that have subwindows, since it is nil there.

        * window.c (save_window_restore):
        Avoid doing Fset_buffer on a dead buffer.
        Use the selected window's new current buffer in that case.

1986-07-28  Richard M. Stallman  (rms@prep)

        * fileio.c (Finsert_file_contents):
        Don't mark buffer modified if inserted a null file.

        * fileio.c (Fcopy_file, e_write): Use 16k buffer size.

1986-07-17  Richard M. Stallman  (rms@prep)

        * unexec.c (copy_sym): Put in missing #endif.

        * alloc.c (Fpurecopy, mark_object): Flush VIRT_ADDR_VARIES
        conditional; always use range from pure to pure + PURESIZE.
        Use type PNTR_COMPARISON_TYPE as the type to compare in.
        This is normally unsigned int but m- file may override this.

        * lisp.h (CHECK_IMPURE): Use PNTR_COMPARISON_TYPE, and always
        use the range from pure to pure + PURESIZE unless
        PNTR_COMPARISON_TYPE is defaulted.

        * eval.c (unbind_to): New temporary var `tmp'
        to avoid a Gould compiler bug.

        * term.c (calculate_ins_del_char_costs):
        * window.c (change_window_height):
        Changed floating point arithmetic to fixed point.

        * sysdep.c: Replace ad-hoc conditionals with new flags
        HAVE_VFORK, HAVE_DUP2 and HAVE_GETTIMEOFDAY.
        Change s-hpux.h and m-stride.h.

        * sysdep.c (init_sys_modes for VMS): Set TT2$M_XON.

        * process.c (create_process): On USG systems that have TIOCNOTTY,
        do the setpgrp here before reopening the pty rather than
        waiting for child_setup.

        * window.c (make_window): size given to make_vector
        was one too small.

1986-07-10  Richard M. Stallman  (rms@prep)

        * keymap.c (Fdescribe_bindings): change XSETTYPE/XSETBUFFER to
        XSET.
        (describe_command): change XSETSTRING to XSET.
        * window.c (Fmove_to_window_line): delete unused start =.
        * xdisp.c (DoDsp) delete unused all_windows initializer.
        * dispnew.c (update_line): delete unused osp =.
        * minibuf.c (do_completion): delete unused completedp initializer.
        * search.c (Freplace_match): delete unused some_multiletter_word init.
        * alloc.c (gc_sweep): delete unused next initializers.
        * fns.c (concat): after error on non-int elt for string,
           do store the new value from the error handler.
        * lread.c (read1): comment out unused end =.
        * lread.c (read_list): delete unused tail =.
        * data.c (Fmake_variable_buffer_local):
          if value type is Lisp_Some_Buffer_Local_Value,
          change it to Lisp_Buffer_Local_Value permanently.
        * undo.c (record_block): delete unused cp =.
          Don't bother reallocing if n = 0 after first batch.
        * fileio.c (Fverify_visited_file_modtime):
          If CHECK_BUFFER changes buf, use the changed value.

1986-07-07  Richard M. Stallman  (rms@prep)

        * alloc.c (mark_buffer): mark the selective_display_ellipses slot.

1986-06-25  Richard M. Stallman  (rms@prep)

        * window.c (Frecenter): Fix bug in last change:
        change applied to M-- arg ratherthan C-u by mistake.

1986-06-19  Richard M. Stallman  (rms@prep)

        * ymakefile (CPP): Now defined by default as `cc -E'.
        * Makefile: likewise.

        More 3b changes:
        * ymakefile: Allow config to specify LIBS_TERMCAP even if
        TERMINFO.
        * sysdep.c: Delete the sign-extension functions; just define
        a variable sign_extend_temp.
        * m-3b.h renamed to m-3b20.h.  Now defines ATT3B20 as well as
        ATT3B.  New definitions for XINT and SIGN_EXTEND_CHAR.

        * sysdep.c (readdirver): New VMS-only function:
        like readdir but return each version as separate filename.

        * dired.c (file_name_completions): New arg ver_flag.
        All callers changed.
        * dired.c (Ffile_name_all_versions): New function, VMS only.

        * unexec.c (copy_sym): Remove spurious #else on
        sun3 conditional.  The old #else code is now unconditional.

        * window.c (Fdisplay_window): Split largest window only if
        full screen width.  The conditional was backwards.

1986-06-17  Richard M. Stallman  (rms@prep)

        * process.c (Fsend_region): Previous change forgot to assign
        anything to start1.

1986-06-13  Richard M. Stallman  (rms@prep)

        * emacs.c (Fdump_emacs): Use start_of_text, not &_start,
        as entry address for unexec.

        * alloc.c: Use XPNTR, not XUINT, when checking for pureness.

        * data.c: When indirecting through Lisp_Buffer_Objfwd,
        use XUINT to get the offset, not XOBJFWD.

        * lisp.h: New macro XPNTR is used as subroutine by all of
        XCONS, XSTRING, etc.  Define it like XUINT normally.
        If DATA_SEG_BITS is defined, XPNTR or's that into the result.
        Use XPNTR in CHECK_IMPURE.

        * sysdep.c (end_of_{text,data}): Do compile these.
        rt-pc unexec needs them.
        * sysdep.c (start_of_bss): New function.

        * unexec.c (copy_text_and_data, write_segment):
        Write text and data segments separately.
        Use new subroutine write_segment to do each one.

        * process.c (Fprocess_exit_status):
        New name for Fprocess_reason.

1986-06-11  Richard M. Stallman  (rms@prep)

        * abbrev.c (Fexpand_abbrev):
        Delete the - inserted by abbrev-prefix-mark, if any.

        * filelock.c (lock_file):
        Check for modifying a buffer whose file has changed
        and call ask-user-about-supercession-threat, which can
        ask for confirmation and get an error.

1986-06-10  Richard M. Stallman  (rms@prep)

        * crt0.c: Merge changes for Nu.

        * unexec.c (make_hdr): Fix handling of blockcopy_start;
        for the sake of Nu machine.

        * fileio.c (Fcopy_file): optional 4th arg non-nil
        means preserve the last-modified time.

        Make C-M-v in minibuffer scroll the minibuffer's help window if any.
        * window.c (save_window_{save,restore}):
        Save and restore minibuf_scroll_window.
        * window.c (Fscroll_other_window):
        If minibuffer is selected, scroll minibuf_scroll_window.
        * minibuf.c (read_minibuf): set minibuf_scroll_window to nil.

        * window.c (Frecenter): With just C-u as arg,
        recenter point but don't erase the screen.

1986-06-09  Richard M. Stallman  (rms@prep)

        * process.c (Fsend_region):
        * fileio.c (Fwrite_region):
        * editfns.c (Fchar_after, save_restriction_restore):
        Avoid using XINT in args to other macros.

        * sysdep.c: New function char_sign_xtnd for ATT3B.

        * lisp.h: Don't redefine XINT if it's already defined.
        So m-3b.h can override it.

        * ymakefile: If NO_REMAP, use the standard crt0.o
        but precede it with pre_crt0.o whose job is to define data_start.

        * buffer.h, buffer.c: New per-buffer variable
        selective-display-ellipses.

        * xdisp.c (display_text_line), indent.c (compute_motion):
        Let bf_cur->selective_display_ellipses control display of ...
        before invisible lines.

        * lread.c (openp, Fload): openp now takes a sequence
        of suffixes with colons between.  It loops over
        suffixes faster than over directories.
        load takes new fourth arg NOSUFFIXES.

1986-06-08  Richard M. Stallman  (rms@prep)

        * paths.h: Remove . from load-path.

        * lread.c: Make "load" no longer interactive.

        * keyboard.c: Introduce BUFFER_SIZE_FACTOR to make
        some keyboard buffers 16 times as big when X windows exist.

1986-06-07  Richard M. Stallman  (rms@prep)

        * eval.c (call_debugger): Don't do a debug-on-call
        for calling the debugger.

        * keyboard.c (gobble_input): Must really use FIONREAD.

        * keyboard.c (command_loop{,_1,_2}, top_level_{1,2}):
        Now Frecursive_edit calls command_loop, which does the catches
        and calls command_loop_2, which does the error handling,
        which calls command_loop to do the real work.
        Also, top_level_1 does a condition-case around top_level_2,
        which does the work.

        Previously, the error handling was outside the catch for
        top-level.  Then if handling an error ran an unwind protect form,
        the catch was not in effect; so ^G, or the debugger Q command,
        would not work inside of them.

1986-06-06  Richard M. Stallman  (rms@prep)

        * keymap.c (get_keymap{,_1}):
        Create get_keymap_1 that takes arg saying whether to get error.
        get_keymap calls that, saying do get an error.

        * keyboard.c (get_char):
        If rereading a char, do put it in the echo buffer
        if the echo buffer is empty.  Fixes problem that
        C-s C-h would never echo the C-h.

        * window.h: New window slot start_at_line_beg,
        holds t if window's start was the beginning of a line.
        * window.c: update this wherever ->start is updated.
        (But not always correctly).
        * xdisp.c (redisplay_window): update start_at_line_beg,
        and also find a new start if the old start used to be
        a line beginning but no longer is (which implies text
        changes just before it).

        * keyboard.c (get_input_pending):
        Don't bother with FIONREAD if interrupt_input;
        just use kbd_count.

        * fns.c: Assume KERNEL_FILE, LDAV_SYMBOL and NLIST_STRUCT
        are fully set up by the s- and m- files.

        * emacs.c (main): Don't call `signal' if in batch mode
        and not initialized and dumping is possible.
        * keyboard.c (init_keyboard): likewise for SIGIO.

        * unexec.c (make_hdr): Copy entire header of old file
        as base for header of new file.  Eliminates most
        machine-specific conditionals.

        * terminfo.c: make tparam work by calling tparm.

        * term.c, cm.h: Eliminate `Tab' macro.

        * s-usg5.2.h, s-usg5.2.2.h: set the TERMINFO flag.

        * fileio.c (Ffile_newer_than_file_p): New Lisp primitive.

        * fileio.c (Ffile_exists_p):  this is now distinct from
        Ffile_readable_p; it checks only for existence, not for
        readability.

        * editfns.c (Fgoto_char): Use new interactive code N.

        * callint.c (Fcall_interactively): New code N
        means use prefix argif have one, else read number from minibuffer.

        * buffer.c (record_buffer):
        Don't use Frassq, Fmemq or Fdelq since their loops
        allow quitting.  Write a spacial loop by hand.

1986-06-05  Richard M. Stallman  (rms@prep)

        * process.c: Add MASSCOMP conditionals for pty and tty names.
        New way to check pty accessibility with `access'.

        * unexec.c (make_hdr): MASSCOMP has its own special field.

        * sysdep.c: Use HAVE_TERMIO conditionals instead of USG
        conditionals in many places.  Use INTERRUPTABLE_OPEN
        and INTERRUPTABLE_IO conditionals to decide whether to
        include the functions sys_read, sys_write, sys_open.
        child_setup_tty must do FIOASYNC on masscomp.

        * fns.c (concat): Add MASSCOMP_REGISTER_BUG conditional.

        * editfns.c (init_editfns): Always check LOGNAME if no USER var.

        * dispnew.c: Now depends on HAVE_TERMIO.

        * crt0.c: BOGUS flag renamed CRT0_DUMMIES.  Also now
        this is never assumes; each m- file must set it to use that code.

        * crt0.c: Two new flags: GLOBAL_START_DOT and
        GLOBAL_START_NO_DOT, control .globl start, etc.
        m- files must define these as needed.
        To have no effect, must define one or the other whenever
        CRT0_DUMMIES is set except for masscomp.
        GLOBAL_START_NO_DOT for tower32, GLOBAL_START_DOT for all others.

        * term.c, termchar.h: Define new flag var no_redraw_on_reenter;
        nonzero means no need to set screen_garbaged on resuming
        after a suspension.
        * sysdep.c (init_sys_modes): don't set screen_garbaged
        after resumption if that flag is set.
        * dispnew.c (syms_of_dispnew): make Lisp var no-redraw-on-reenter,

        * process.c (Fprocess_reason): New function.

        * dispnew.c (change_screen_size): New arg PRETEND.
        If it's zero, set ScreenRows or ScreenCols.
        Fset_screen_{width,height} take new arg as well
        to control value of PRETEND.

        * sysdep.c (child_setup_tty for USG):
        Turn ICANON on, and set VKILL and VERASE to 0377.
        Don't frob VMIN and VTIME (said to be unnecessary here).

        * keyboard.c (command_loop, Frecursive_edit):
        Call top_level_1 only from command_loop.
        Do it before command_loop_1.  Put catch for top-level around it.

        * xdisp.c (try_window_1): use scroll_cost to decide
        whether scrolling, as determined from ins/del records,
        is better than simple reprinting.

        * scroll.c (scroll_cost): New function computes what cost
        would be to do scroll_screen_lines.

        * xdisp.c (display_text_string):
        Display minibuf_prompt only if vpos is the top of the minibuffer.
        Attempts to fix the bug where the prompt appears on all the
        lines of an empty minibuffer.

1986-06-04  Richard M. Stallman  (rms@prep)

        * fileio.c (Fdefine_logical_name):
        For VMS: create a logical name translation.

        * emacs.c (main):
        (HAVE_X_WINDOWS) New variable alternate_display,
        set with a -d switch.

        * keyboard.c, sysdep.c:
        Create new system-independent function sys_suspend.
        All places that want to suspend now use sys_suspend.
        Delete fake_suspend and make its definition one of the
        cases for sys_suspend; but require the caller to change
        the terminal modes, on all system versions.

        * Merged in VMS conditionals in numerous files.

1986-06-01  Richard M. Stallman  (rms@prep)

        * emacs.c (main, Fdump_emacs):
        Use new arg to malloc_init to say what function to call for
        warnings.

        * unexec.c, malloc.c, getpagesize.h:
        The code to define getpagesize () is now in getpagesize.h.

        * process.c (reate_process), callproc.c (child_setup):
        Move call to child_setup_tty from child_setup to create_process,
        so it's not done for synchronous subprocesses.
        * sysdep.c (child_setup_tty): omit it if not subprocesses.

        * alloc.c (mark_object), lread.c (DefLispVar):
        Protect the C variable with staticpro.
        Therefore no more need to mark thru a Lisp_Objfwd.

See ChangeLog.1 for earlier changes.

    Copyright (C) 1986, 1987, 1988 Free Software Foundation, Inc.
  Copying and distribution of this file, with or without modification,
  are permitted provided the copyright notice and this notice are preserved.

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