Log message:
pull in fix from readline git repo (will be in 6.3) for vi mode and the
'cc', 'dd', 'yy' commands. Also correctly build examples for testing.

Log message:
Use find-headers instead of find-files to detect builtin header files.

Log message:
Cygwin64 1.7.22's gcc 4.8.1 does not accept -no-undefined.
Restrict to use with libtool only.

Log message:
Add buildlink/builtin mechanism for devel/editline and devel/readline.

With this change, .include "../../devel/readline/buildlink3.mk" with
USE_GNU_READLINE=yes should be replaced with
.include "../../devel/readline/buildlink3.mk",
and .include "../../devel/readline/buildlink3.mk" without USE_GNU_READLINE
should be replaced .include "../../mk/readline.buildlink3.mk".

USE_GNU_READLINE is removed.

Log message:
pass -no-undefined to libtool on Cygwin for building shlib.

Log message:
Drop superfluous PKG_DESTDIR_SUPPORT, "user-destdir" is default these days.

Log message:
Changes 6.2:
a. Fixed a bug that caused the unconverted filename to be added to the list of
   completions when the application specified filename conversion functions.
b. Fixed a bug that caused the wrong filename to be passed to opendir when the
   application has specified a filename dequoting function.
c. Fixed a bug when repeating a character search in vi mode in the case where
   there was no search to repeat.
d. When show-all-if-ambiguous is set, the completion routines no longer insert
   a common match prefix that is shorter than the text being completed.
e. The full set of vi editing commands may now be used in callback mode.
   dimensions while running in `no-echo' mode.
h. Fixed a bug that caused readline to dump core if an application called
   rl_prep_terminal without setting rl_instream.
i. Fixed a bug that caused meta-prefixed characters bound to incremental
   search forward or backward to not be recognized if they were typed
   subsequently.
j. The incremental search code treats key sequences that map to the same
   functions as (default) ^G, ^W, and ^Y as equivalent to those characters.
k. Fixed a bug in menu-complete that caused it to misbehave with large
   negative argument.
l. Fixed a bug that caused vi-mode yank-last-arg to ring the bell when invoked
   at the end of the line.
m. Fixed a bug that made an explicit argument of 0 to yank-last-arg behave
   as if it were a negative argument.
n. Fixed a bug that caused directory names in words to be completed to not
   be dequoted correctly.

New Features
a. The history library does not try to write the history filename in the
   current directory if $HOME is unset.  This closes a potential security
   problem if the application does not specify a history filename.
b. New bindable variable `completion-display-width' to set the number of
   columns used when displaying completions.
c. New bindable variable `completion-case-map' to cause case-insensitive
   completion to treat `-' and `_' as identical.
d. There are new bindable vi-mode command names to avoid readline's case-
   insensitive matching not allowing them to be bound separately.
e. New bindable variable `menu-complete-display-prefix' causes the menu
   completion code to display the common prefix of the possible completions
   before cycling through the list, instead of after.

Log message:
Update to 6.1:

This is a terse description of the new features added to readline-6.1 since
the release of readline-6.0.

1.  New Features in Readline

a.  New bindable function: menu-complete-backward.

b.  In the vi insertion keymap, C-n is now bound to menu-complete by default,
    and C-p to menu-complete-backward.

c.  When in vi command mode, repeatedly hitting ESC now does nothing, even
    when ESC introduces a bound key sequence.  This is closer to how
    historical vi behaves.

d.  New bindable function: skip-csi-sequence.  Can be used as a default to
    consume key sequences generated by keys like Home and End without having
    to bind all keys.

e.  New application-settable function: rl_filename_rewrite_hook.  Can be used
    to rewite or modify filenames read from the file system before they are
    compared to the word to be completed.

f.  New bindable variable: skip-completed-text, active when completing in the
    middle of a word.  If enabled, it means that characters in the completion
    that match characters in the remainder of the word are "skipped" rather
    than inserted into the line.

g.  The pre-readline-6.0 version of menu completion is available as
    "old-menu-complete" for users who do not like the readline-6.0 version.

h.  New bindable variable: echo-control-characters.  If enabled, and the
    tty ECHOCTL bit is set, controls the echoing of characters corresponding
    to keyboard-generated signals.

i.  New bindable variable: enable-meta-key.  Controls whether or not readline
    sends the smm/rmm sequences if the terminal indicates it has a meta key
    that enables eight-bit characters.

Log message:
Correct LICENSE, per PR 41943.

Log message:
Remove @dirrm entries from PLISTs