Properly detect CRC32 APIs on aarch64 from configure

The CRC32 APIs are optional for armv8-a. They became mandatory since
armv8.1-a.

Closes GH-5564.

Check for sys/auxv.h before using it.

Fixes aarch64 compile with uclibc-ng (does not provide
sys/auxv.h header file).

Closes GH-5248.

Signed-off-by: Peter Seiderer <ps.

Check for sys/auxv.h before using it.

Fixes aarch64 compile with uclibc-ng (does not provide
sys/auxv.h header file).

Closes GH-5248.

Signed-off-by: Peter Seiderer <ps.report@gmx.net>

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Fix aarch64 crc32 implementation

RETVAL vs RETURN mixup resulted in the fallback implementation
running as well.

Fix AArch64 build

[AArch64] Use crc32 instructions when available

The time goes from 0.838s down to 0.029s (a 28x speedup) on a Graviton A1
instance and the following benchmark:

function simple_c

[AArch64] Use crc32 instructions when available

The time goes from 0.838s down to 0.029s (a 28x speedup) on a Graviton A1
instance and the following benchmark:

function simple_crc32() {
$a = "foo";
for ($i = 0; $i < 10000; $i++) {
crc32($a);
$a .= "o".$i;
}
}

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Remove local variables

This patch removes the so called local variables defined per
file basis for certain editors to properly show tab width, and
similar settings. These are mainly

Remove local variables

This patch removes the so called local variables defined per
file basis for certain editors to properly show tab width, and
similar settings. These are mainly used by Vim and Emacs editors
yet with recent changes the once working definitions don't work
anymore in Vim without custom plugins or additional configuration.
Neither are these settings synced across the PHP code base.

A simpler and better approach is EditorConfig and fixing code
using some code style fixing tools in the future instead.

This patch also removes the so called modelines for Vim. Modelines
allow Vim editor specifically to set some editor configuration such as
syntax highlighting, indentation style and tab width to be set in the
first line or the last 5 lines per file basis. Since the php test
files have syntax highlighting already set in most editors properly and
EditorConfig takes care of the indentation settings, this patch removes
these as well for the Vim 6.0 and newer versions.

With the removal of local variables for certain editors such as
Emacs and Vim, the footer is also probably not needed anymore when
creating extensions using ext_skel.php script.

Additionally, Vim modelines for setting php syntax and some editor
settings has been removed from some *.phpt files. All these are
mostly not relevant for phpt files neither work properly in the
middle of the file.

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Remove yearly range from copyright notice

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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year++

year++

year++

Update copyright headers to 2017

Update copyright headers to 2017

Update copyright headers to 2017

Use new param API in standard

Replace usage of php_int32 and php_uint32 with int32_t and uint32_t

Happy new year (Update copyright to 2016)

bump year

bump year

Bump year

first shot remove TSRMLS_* things

s/PHP 5/PHP 7/

first show to make 's' work with size_t

master renames phase 1

fix macros in the 5 basic extensions