Fix rl_completion_matches detection

Also fix a typo when checking for rl_on_new_line in readline library.

Trim trailing whitespace in source code files

Trim trailing whitespace in source code files

Trim trailing whitespaces in build files

Some editors utilizing .editorconfig automatically trim whitespaces. For
convenience this patch removes whitespaces in certain build files:
-

Trim trailing whitespaces in build files

Some editors utilizing .editorconfig automatically trim whitespaces. For
convenience this patch removes whitespaces in certain build files:
- ext/*/config*.m4
- configure.ac
- acinclude.m4

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Remove unused Git attributes ident

The $Id$ keywords were used in Subversion where they can be substituted
with filename, last revision number change, last changed date, and last
use

Remove unused Git attributes ident

The $Id$ keywords were used in Subversion where they can be substituted
with filename, last revision number change, last changed date, and last
user who changed it.

In Git this functionality is different and can be done with Git attribute
ident. These need to be defined manually for each file in the
.gitattributes file and are afterwards replaced with 40-character
hexadecimal blob object name which is based only on the particular file
contents.

This patch simplifies handling of $Id$ keywords by removing them since
they are not used anymore.

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Fix long-standing visual pain point: the misalignment of './configure help' text.
Whitespace changes and a couple of grammar fixes.

Fixed bug#54450 (callback function when built against libedit)

Fixed bug#54450 (callback function when built against libedit)

- Implement FR#53878 Interactive shell should work with shared readline extension

# This is useful w/ distributors who like to build all things shared or don't
# provide the readline ext

- Implement FR#53878 Interactive shell should work with shared readline extension

# This is useful w/ distributors who like to build all things shared or don't
# provide the readline extension. Or if a user pefers readline's behavior over
# libedit which might be used by the distributor.

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- Fixed bug #50209 (Compiling with libedit cannot find readline.h)
(patch by tcallawa at redhat dot com)

- Fixed bug #48608 (Invalid libreadline version not detected during configure)

- Fixed bBug #48873 (Using both --with-libedit and --with-readline cause unknown option warning)

# This isn't worth of NEWS entry, it's just cosmetic

MFH:- Fixed bug #48256 (Crash due to double-linking of history.o)

MFH

MFH: - Fixed bug #35409 (undefined reference to 'rl_completion_matches').

- Make sure --with-readline is used only when --with-libedit is not used.

- Unify the "configure --help" texts

Update extensions to use /path/to/$PHP_LIBDIR rather than /path/to/lib
to support multi-ABI platforms.

Add support for the readline callback interface, allowing you to interleave
IO and user input. Sample script:

<?php
dl("readline.so");

function handle_user_input($line)

Add support for the readline callback interface, allowing you to interleave
IO and user input. Sample script:

<?php
dl("readline.so");

function handle_user_input($line)
{
echo "You typed: '$line'\n";
if ($line == 'exit')
exit;
}

readline_callback_handler_install('type! > ', 'handle_user_input');

while (true) {
$n = stream_select($r = array(STDIN), $w = null, $e = null, null);

if ($n && in_array(STDIN, $r)) {
readline_callback_read_char();
}
}

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- No tabs here please

use dependent libs while probing for functions

- Always look into /usr/local before /usr
- Added breaks to make sure the preferred value is used.

Always prefer user specified paths over the default /usr /usr/local.
This may fix compilation problems with on systems with multiple copies of
the same library.

- There's no point in allowing using both --with-readline and --with-libedit
the same time. Prefer --with-readline.
- Use PHP_ADD_LIBRARY when there is no path available.

Fix typo.