whitespace and header sorting changes (Ingo Schwarze). No functional changes.

Add INCSYMLINKS to <bsd.inc.mk> and <bsd.kinc.mk>, and use that instead of
SYMLINKS to install symlinked header files. INCSYMLINKS are installed with
'make includes'. This avoids using SYMLINKS and hacks with the 'linkinstall'
target in <bsd.links.mk>, as linksinstall occurs in 'make install' and hacks
to get it to occur in 'make includes' weren't robust, as seen in lib/libdes.

Yet more improvements to bsd.README.

More use of ${NETBSDSRCDIR}/some/path instead of ${.CURDIR}/../../some/path

Readability cleanups; MKfoo=no -> NOfoo.

Use relative path for symlink target so that it won't point outside of tree.

Back off previous and do differently:
Ensure that the <readline/history.h> link to <readline/readline.h> is
installed too for 'make includes'. Also, avoid creating obj dir.
This is finally real fix for lib/12929.
XXX Is this right?

Use <bsd.inc.mk>, instead of <bsd.prog.mk>, so that the readline.h header
is installed during the 'make includes'.
Fixes lib/12929 by Martin Husemann.

Standard location of readline headers is /usr/include/readline/, so install
them there.
readline.h of libedit had to move to subdirectory 'readline', due to the way
BSD makefiles work; this is better than potentially fragile Makefile hacks

pass lint.

Align types with readline-8.2 (wiz@)

PR/56695: Walter Lozano: Correct declaration of hook functions.

PR/56693: Walter Lozano: Add support for rl_delete_text and rl_set_key

PR/56622: Walter Lozano: Improve readline compatibility by adding
rl_readline_state support.

Don't use __printflike, use the explicit attribute so that this works outside
NetBSD.

libedit: rl_message: annotate __printflike

PR/56618: Walter Lozano: Improve libedit compatibility with readline by
implementing:

rl_copy_text, rl_erase_empty_line, rl_message, rl_on_new_line,
rl_replace_line, rl_restore_prompt, rl_save_prompt

Add more api to make gdb-11 happy (but not gdbtui as usual)

PR/54280: rl_completer_quote_characters should be const for readline compat

PR/53983: Jonathan Perkins: Fix types for readline compatibility

Add a couple more readline compat functions.

branches: 1.43.2;
Provide more compatibility with readline headers; now python-3.6.5 works
when changing 'readline' -> 'edit' in setup.py.
Revert previous conditional setting of unbuffered.

branches: 1.42.2;
PR/51517: Jay West: Tty settings not restored on exit
PR/51518: Jay West: prompt is interleaved with client output

Both these issues are caused by rl_restore_handler not DTRT; fix
it so that it kills the internal libedit state completely. This is
inefficient, but it works.

Also fix:
1. add append_history()/H_NSAVE_FP
2. call the rl_startup_hook before printing the first prompt as documented.
callint it from rl_initialize breaks python, because the callback ends
up being invoked before the readline module is installed, and we end up
dereferencing a NULL pointer.
3. add el_resize_terminal.

With those changes, s/lreadline/ledit/g in python works.

export rl_done

more compatible with readline history functions.

branches: 1.39.2;
whitespace and header sorting changes (Ingo Schwarze). No functional changes.

OpenBSD readline.c rev. 1.13 2015/01/13 08:33:12 reyk
rl_set_keyboard_input_timeout() for readline 4.2 compat

remove duplicate declaration

Adjust API to a more modern readline (Ryo Onodera)

- fix types of rl_completion_entry_function and rl_add_defun
- call update pos before completion to refresh the screen
From Thomas Eriksson

expose rl_catch_signals and explain what we are doing.

branches: 1.33.2;
Add rl_completion_word_break_hook from:
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/\
5ec6a45fa762b8cbd0305ca06acb8780335a486a

branches: 1.32.6;
unbreak readline history.

provide rl_on_newline

apply apple patches from:
http://opensource.apple.com/source/libedit/libedit-11/patches/

delete defined(sun), it could be invaded in the user namespace. Suggested
by mrg@

use __sun || sun instead of _SunOS, from Jess Thrysoee

add stdio.h since we are using FILE. From Grant Erickson

implement RL_PROMPT_{START,END}_IGNORE

More fixes for existing portability stuff.

branches: 1.24.2;
add rl_set_prompt

Convert to new 2 clause license

branches: 1.22.2;
Add rl_forced_update_display() from Gerry Swislow

patches from Axel Thimm

Add rl_completion_matches, fix remove_history

- Add more readline functions, enough for gdb-6.5
- Make el_get varyadic, and implement EL_GETTC.
- XXX: the EL_SETTC api will change in the future.

Change to a 3 clause copyright after permission of the holders.

PR/30747: David N. Williams: libedit is missing remove_history()
Added, please test.

PR/30500: Paul Shupak: Inconsistent definition of tilde_expand().
Provide a layer of indirection between the readline compatibility functions
and our internal implementation, so that we have the freedom to change the
function signature.

tilde expand should take a const argument.

Sync the alternative readline interface with reality:

+ the rl_callback_handler_install takes a pointer to a void function
which has one char * argument (it's called that way in the readline
emulation source, otherwise there's no way to pass the line buffer
to the function which processes the line when EOL is encountered)

+ provide a prototype for that function signature and use it

Makes the callback readline interface work now.

PR/29958: Peter Bex: add rl_variable_bind and rl_attempted_completion_over

branches: 1.12.2;
make rl_inhibit_completion visible.

portability fixes.

Make readline csh-like history work.
From Gerry Swislow <gerry at certif dot com>.

More libedit readline emulation functions from: Gerry Swislow
<gerry at certif dot com>

Implement enough of readline's 4.0 async mode to make gdb happy. This is
not complete yet, but it seems to work...
This required to introduce an unbuffered mode to el_gets(), but that was
a minor change.

Include "sys/ttydefaults.h" to get standard definition of "CTRL" macro
which avoids clash with custom one.

kludge around CTRL redef.

Match the stupid function pointer declarations with actual readline's 4.0.
This is gross.

Avoid pre-ansi warning.

- provide enough hooks to compile gdb-5.3
- fix el_get(e, EL_TERMINAL, (char **))

- constify; passes all gcc and lint strict checks.
- add config.h [Jason Evans], to create a portable version of libedit that
can be easily compiled on other OS's.

Standard location of readline headers is /usr/include/readline/, so install
them there.
readline.h of libedit had to move to subdirectory 'readline', due to the way
BSD makefiles work; this is better than potentially fragile Makefile hacks