Remove unused HAVE_BROKEN_GLIBC_FOPEN_APPEND

This has not been used since PHP 5.0.

Remove HAVE_STDLIB_H

The C89 and later standard defines the `<stdlib.h>` header as part of
the standard headers [1] and on current systems it is always present
and the `HAVE_STDLIB_H

Remove HAVE_STDLIB_H

The C89 and later standard defines the `<stdlib.h>` header as part of
the standard headers [1] and on current systems it is always present
and the `HAVE_STDLIB_H` symbol can be removed.

Also Autoconf suggests doing this and relying on C89 or above [2] and [3].

[1] https://port70.net/~nsz/c/c89/c89-draft.html#4.1.2
[2] http://git.savannah.gnu.org/cgit/autoconf.git/tree/lib/autoconf/headers.m4
[3] https://www.gnu.org/software/autoconf/manual/autoconf-2.69/autoconf.html

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Remove HAVE_SYS_VARARGS_H

Outdated systems used to provide the `<varargs.h>` and in case of PHP
`<sys/varargs.h>`. [1]

Current systems have `<stdarg.h>` which is also a C89 stan

Remove HAVE_SYS_VARARGS_H

Outdated systems used to provide the `<varargs.h>` and in case of PHP
`<sys/varargs.h>`. [1]

Current systems have `<stdarg.h>` which is also a C89 standard header
and systems have it always present. [2]

[1] https://en.wikipedia.org/wiki/Stdarg.h#varargs.h
[2] https://port70.net/~nsz/c/c89/c89-draft.html#4.1.2

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Silence ar warning

Fix #76510: file_exists() stopped working for phar://

We work around a strlen() optimization bug in GCC 8[1] by checking
whether the used GCC exhibits the broken behavior, and if so by

Fix #76510: file_exists() stopped working for phar://

We work around a strlen() optimization bug in GCC 8[1] by checking
whether the used GCC exhibits the broken behavior, and if so by
disabling `optimize-strlen`.

[1] <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86914>

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Remove HAVE_ASSERT_H

The `<assert.h>` header file is part of the standard C89 headers [1] and
on older systems there needed to be also a manual check if header is
present.

S

Remove HAVE_ASSERT_H

The `<assert.h>` header file is part of the standard C89 headers [1] and
on older systems there needed to be also a manual check if header is
present.

Since PHP requires at least C89 manual check and the `HAVE_ASSERT_H`
symbol defined by Autoconf in configure.ac can be both removed [2].

This patch also removes unused <assert.h> includes where c files don't
use the `assert()` macro.

Refs:
[1] https://port70.net/~nsz/c/c89/c89-draft.html#4.2
[2] https://git.savannah.gnu.org/cgit/autoconf.git/tree/lib/autoconf/headers.m4

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Remove AC_FUNC_UTIME_NULL

Autoconf 2.59d (released in 2006) [1] started promoting several macros
as not relevant for newer systems, including the AC_FUNC_UTIME_NULL.

This macro

Remove AC_FUNC_UTIME_NULL

Autoconf 2.59d (released in 2006) [1] started promoting several macros
as not relevant for newer systems, including the AC_FUNC_UTIME_NULL.

This macro checks if `utime(file, NULL)` sets file's timestamp to the
current time and defines the `HAVE_UTIME_NULL` symbol. This check was
relevant on very old systems (for example, 4.3BSD released in 1986) and
today can be omitted for systems with utime since it should be well
supported by now. [2]

Refs:
[1] http://git.savannah.gnu.org/cgit/autoconf.git/tree/NEWS
[2] https://www.gnu.org/software/autoconf/manual/autoconf-2.69/autoconf.html

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Remove AC_HEADER_DIRENT

Autoconf 2.59d (released in 2006) [1] started promoting several macros
as not relevant for newer systems anymore, including the `AC_HEADER_DIRENT`.

This

Remove AC_HEADER_DIRENT

Autoconf 2.59d (released in 2006) [1] started promoting several macros
as not relevant for newer systems anymore, including the `AC_HEADER_DIRENT`.

This macro checks which header defines the `DIR` type. If `<dirent.h>`
is available it defines the `HAVE_DIRENT_H` symbol. Since the `<dirent.h>`
header is already checked in the `configure.ac`, this check is not needed
anymore. This macro also additionally checks for SCO Xenix (discontinued,
latest release 1989) dir and x libraries. [2]

Commit 6ed790685f9ddae11834f36b0ba4fea58afc805a introduced also
`<sys/dir.h>`. This header exists from times of UNIX System V and
provided definition of DIR type on these systems such as 4.3BSD.
Today `<sys/dir.h>` is kept for backwards compatibility and includes
the `<dirent.h>` on current systems. With `dirent.h>` present this
include is no longer required.

Refs:
[1] http://git.savannah.gnu.org/cgit/autoconf.git/tree/NEWS
[2] https://www.gnu.org/software/autoconf/manual/autoconf-2.69/autoconf.html

Remove unused dirent.h includes

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Remove AC_FUNC_VPRINTF

Autoconf 2.59d (released in 2006) 1 started promoting several macros
as not relevant for newer systems anymore, including the AC_FUNC_VPRINTF.

This macro

Remove AC_FUNC_VPRINTF

Autoconf 2.59d (released in 2006) 1 started promoting several macros
as not relevant for newer systems anymore, including the AC_FUNC_VPRINTF.

This macro checks for presence of the vprint function otherwise checks
for presence of the _doprnt function. This check was relevant on very
old systems and today can be omitted since it should be well supported
by now. [2]

Also PHP doesn't use the HAVE_VPRINTF or HAVE_DOPRNT symbols.

Refs:
[1] http://git.savannah.gnu.org/cgit/autoconf.git/tree/NEWS
[2] https://www.gnu.org/software/autoconf/manual/autoconf-2.69/autoconf.html

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Remove AC_STRUCT_TM macro

Autoconf 2.59d (released in 2006) [1] started promoting several macros
as not relevant for newer systems anymore, including the `AC_STRUCT_TM`.

This ma

Remove AC_STRUCT_TM macro

Autoconf 2.59d (released in 2006) [1] started promoting several macros
as not relevant for newer systems anymore, including the `AC_STRUCT_TM`.

This macro checks if `struct tm` is defined in either `<sys/time.h>` or
`<time.h>` and defines the `TM_IN_SYS_TIME` symbol accordingly. This
check was relevant in times before the C89 for some embedded systems,
microcontrollers or very old systems. For newer systems it can be
avoided and the `<time.h>` should be included instead since current
systems should be well supported by now. [2]

Since PHP requires at least C89, this patch removes the obsolescent call
and time.h checks.

Refs:

- [1]: http://git.savannah.gnu.org/cgit/autoconf.git/tree/NEWS
- [2]: https://www.gnu.org/software/autoconf/manual/autoconf-2.69/html_node/Particular-Structures.html

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Implement #64517: Add AC_ARG_PROGRAM macro

The AC_ARG_PROGRAM Autoconf macro provides program name transformations
when installing. This patch implements #64517 and prepares the
impl

Implement #64517: Add AC_ARG_PROGRAM macro

The AC_ARG_PROGRAM Autoconf macro provides program name transformations
when installing. This patch implements #64517 and prepares the
implementation for the request #60518.

In ./configure --help it additionally outputs --program-prefix=PREFIX,
--program-suffix=SUFFIX and the upcoming --program-transform-name=PROGRAM
option.

Macro AC_ARG_PROGRAM is available since Autoconf 2.0 and needs to be
called after the AC_CANONICAL_TARGET macro.

Refs:
- https://www.gnu.org/software/autoconf/manual/autoconf-2.69/html_node/Transforming-Names.html

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bump to 7.2.11-dev

Remove outdated comment with PEAR xmlrpc dependency

The xmlrpc extension is not required to install PEAR anymore.

Prepare for PHP 7.4

[ci skip] Fix typo

Replace obsolete AC_TRY_FOO with AC_FOO_IFELSE

Autoconf 2.50 released in 2001 made several macros obsolete including
the AC_TRY_RUN, AC_TRY_COMPILE and AC_TRY_LINK:
http://git.savann

Replace obsolete AC_TRY_FOO with AC_FOO_IFELSE

Autoconf 2.50 released in 2001 made several macros obsolete including
the AC_TRY_RUN, AC_TRY_COMPILE and AC_TRY_LINK:
http://git.savannah.gnu.org/cgit/autoconf.git/tree/ChangeLog.2

These macros should be replaced with the current AC_FOO_IFELSE instead:
- AC_TRY_RUN with AC_RUN_IFELSE and AC_LANG_SOURCE
- AC_TRY_LINK with AC_LINK_IFELSE and AC_LANG_PROGRAM
- AC_TRY_COMPILE with AC_COMPILE_IFELSE and AC_LANG_PROGRAM

PHP 5.4 to 7.1 require Autoconf 2.59+ version, PHP 7.2 and above require
2.64+ version, and the PHP 7.2 phpize script requires 2.59+ version which
are all greater than above mentioned 2.50 version therefore systems
should be well supported by now.

This patch was created with the help of autoupdate script:
autoupdate <file>

Reference docs:
- https://www.gnu.org/software/autoconf/manual/autoconf-2.69/html_node/Obsolete-Macros.html
- https://www.gnu.org/software/autoconf/manual/autoconf-2.59/autoconf.pdf

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[ci skip] Fix typo

Upgrade deprecated AC_OUTPUT macro calls

Autoconf 2.50 made several changes to macro calls. These include also
arguments passed to AC_OUTPUT macro. The upgrading chapter in Autoconf

Upgrade deprecated AC_OUTPUT macro calls

Autoconf 2.50 made several changes to macro calls. These include also
arguments passed to AC_OUTPUT macro. The upgrading chapter in Autoconf
documentation include an example of using AC_OUTPUT with
AC_CONFIG_FILES and AC_CONFIG_COMMANDS:
- https://www.gnu.org/software/autoconf/manual/autoconf-2.69/html_node/Obsolete-Macros.html

PHP 5.4 to 7.1 require Autoconf 2.59+, PHP 7.2+ require Autoconf 2.64+,
and PHP 7.2 phpize script requires Autoconf 2.59+ which are all greater
than above mentioned 2.50 version. Systems out there should well support
this by now.

This patch was created with the help of autoupdate script:
autoupdate <file>

More info on where exactly this got deprecated:
- ftp://ftp.gnu.org/old-gnu/Manuals/autoconf-2.13/html_mono/autoconf.html
- ftp://ftp.auckland.ac.nz/pub/gnu/Manuals/autoconf-2.52/html_chapter/autoconf_15.html
- http://git.savannah.gnu.org/cgit/autoconf.git/tree/NEWS

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Replace obsolete AC_STRUCT_ST_BLKSIZE and AC_STRUCT_ST_RDEV

Autoconf 2.50 released in 2001 has made several macros obsolete. Instead
of the AC_STRUCT_ST_BLKSIZE and AC_STRUCT_ST_RDEV the

Replace obsolete AC_STRUCT_ST_BLKSIZE and AC_STRUCT_ST_RDEV

Autoconf 2.50 released in 2001 has made several macros obsolete. Instead
of the AC_STRUCT_ST_BLKSIZE and AC_STRUCT_ST_RDEV the new
AC_CHECK_MEMBERS should be used.

When checking for the presence of stat struct members st_blkzize and
st_rdev the new AC_CHECK_MEMBERS macro defines new constants
HAVE_STRUCT_STAT_ST_BLKSIZE and HAVE_STRUCT_STAT_ST_RDEV.

Old constants HAVE_ST_BLKSIZE and HAVE_ST_RDEV need to be replaced
respectively in PHP code (this patch) and in PHP extenstions if they use
them.

PHP 5.4 to 7.1 require Autoconf 2.59+ version, PHP 7.2 and above require
2.64+ version, and the PHP 7.2 phpize script requires 2.59+ version which
are all greater than above mentioned 2.50 version.

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Replace obsolete AC_AIX with AC_USE_SYSTEM_EXTENSIONS

Since Autoconf 2.62 the AC_AIX macro has been made obsolete and should
be replaced with the AC_USE_SYSTEM_EXTENSIONS instead.

Replace obsolete AC_AIX with AC_USE_SYSTEM_EXTENSIONS

Since Autoconf 2.62 the AC_AIX macro has been made obsolete and should
be replaced with the AC_USE_SYSTEM_EXTENSIONS instead.

Both macro behaviors are the same since the old one is just a wrapper
around the new AC_USE_SYSTEM_EXTENSIONS:
http://git.savannah.gnu.org/cgit/autoconf.git/tree/lib/autoconf/specific.m4

PHP 7.2+ and the main configure.ac script require minimum Autoconf 2.64+.

Refs:
- http://git.savannah.gnu.org/cgit/autoconf.git/tree/NEWS
- https://www.gnu.org/software/autoconf/manual/autoconf-2.69/html_node/Obsolete-Macros.html

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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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Fix typos in code comments

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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Bump Autoconf version in configure.ac to 2.64

Since PHP 7.2 the minimum autoconf version is 2.64. The configure.ac
script file includes also AX_CHECK_COMPILE_FLAG macro call so besides

Bump Autoconf version in configure.ac to 2.64

Since PHP 7.2 the minimum autoconf version is 2.64. The configure.ac
script file includes also AX_CHECK_COMPILE_FLAG macro call so besides
only checking it in buildconf script this bumps the autoconf here too.

The phpize.m4 script is for now still relaxed to 2.59 version since some
still supported systems such as CentOS 6 still include autoconf 2.63
version and might require calling phpize on some old extensions.

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Replace AC_CONFIG_HEADER with AC_CONFIG_HEADERS

Autoconf doesn't mention the AC_CONFIG_HEADER macro since the v2.13
released in 1999 anywhere in the documentation. Future of this macro i

Replace AC_CONFIG_HEADER with AC_CONFIG_HEADERS

Autoconf doesn't mention the AC_CONFIG_HEADER macro since the v2.13
released in 1999 anywhere in the documentation. Future of this macro is
unclear and commented as possible candidate for obsoletion in the
autoconf source code. Since it is just a wrapper around the main
AC_CONFIG_HEADERS macro, the functionality is the same, and also more
clear to find it in the autoconf documentation and avoid possible future
obsoletion.

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