Clean build system

Changes:
- AC_TYPE_SIZE_T called on only one place (configure.ac)
- AC_FUNC_ALLOCA called on only one place (configure.ac)
- AC_TYPE_UID_T called on only one p

Clean build system

Changes:
- AC_TYPE_SIZE_T called on only one place (configure.ac)
- AC_FUNC_ALLOCA called on only one place (configure.ac)
- AC_TYPE_UID_T called on only one place (configure.ac)
- HAVE_STRSTR removed since strstr is part of C89 standard [1]
- Remove checks for strtol and strpbrk
- Checking for the presence of perror function is not needed anymore
since it is part of C89 standard and PHP calls it unconditionally.
- Checking for functions strdup, setenv, strerror, and memmove done only
on one place (configure.ac)
- outdated check for snprintf removed

1: https://port70.net/~nsz/c/c89/c89-draft.html

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Add AS_HELP_STRING to *nix build configure options

The Autoconf's default AS_HELP_STRING macro can properly format help
strings [1] so watching out if columns are aligned manually is not

Add AS_HELP_STRING to *nix build configure options

The Autoconf's default AS_HELP_STRING macro can properly format help
strings [1] so watching out if columns are aligned manually is not
anymore.

[1] https://www.gnu.org/software/autoconf/manual/autoconf.html#Pretty-Help-Strings

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Remove legacy AC_CHECK_TYPE calls for uint and ulong

The AC_CHECK_TYPE was refactored in more recent versions of Autoconf
and the call with two arguments is obsolete and not recommended

Remove legacy AC_CHECK_TYPE calls for uint and ulong

The AC_CHECK_TYPE was refactored in more recent versions of Autoconf
and the call with two arguments is obsolete and not recommended anymore.

This patch also refactors some leftovers of using ulong and uint which
are not standard nor common usages of types in C.

The ulong can be used as zend_ulong and uint usage is actually
`unsigned int`.

The usage of HAVE_ULONG removed since it is not used in current code
base.

Legacy edgecase for some legacy HPUX systems removed:
- sys/stream.h header is not checked and the HAVE_SYS_STREAM_H is
not defined with current build system.

- flags are unsigned int
- max_allowed_packet changed to unsigned int

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Remove outdated hack for AIX 4

AIX 4 is not supported anymore for a while. This hack was added very
long time ago into PHP and is not needed anymore.

Remove AC_PROG_CC_C_O

The AC_PROG_CC_C_O macro checks if compiler can use both -c and -o
options together and if not it defines the NO_MINUS_C_MINUS_O symbol.
It is not used in curre

Remove AC_PROG_CC_C_O

The AC_PROG_CC_C_O macro checks if compiler can use both -c and -o
options together and if not it defines the NO_MINUS_C_MINUS_O symbol.
It is not used in current codebase and therefore removed.

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Remove LIBZEND_CHECK_INT_TYPE and PHP_CHECK_TYPES

Checking for int32_t and uint32_t types is already done by the
PHP_CHECK_STDINT_TYPES m4 macro.

The PHP_CHECK_TYPES m4 macro ha

Remove LIBZEND_CHECK_INT_TYPE and PHP_CHECK_TYPES

Checking for int32_t and uint32_t types is already done by the
PHP_CHECK_STDINT_TYPES m4 macro.

The PHP_CHECK_TYPES m4 macro has been once used by the mysqlnd and has
been removed via 14caf174ff219376e4f1234bd297ffe973cc416e and
additionally, the internal unused macro _PHP_DEF_HAVE_FILE has been
removed.

Additionally, the unused PHP_HAVE_STDINT_TYPES symbol has been removed.

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Remove obsolescent AC_HEADER_STDC and memcpy check

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

Remove obsolescent AC_HEADER_STDC and memcpy check

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

This macro checks if given system has C89 compliant header files such
as `<string.h>`, `<stdlib.h>`, `<stdarg.h>`, `<float.h>`,... and defines
the `STDC_HEADERS` symbol [2]. Case is that current systems should be
well supported with at least C89 standard headers [3].

Given headers are still additionally checked with the `AC_PROG_CC`
macro, yet not needed anyway.

Additionally, the HAVE_MEMCPY check has been removed. The memcpy
function is standardized by C89 and later.

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
[3] https://port70.net/~nsz/c/c89/c89-draft.html#4.1.2

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Remove ZEND_FP_EXCEPT macro and HAVE_FP_EXCEPT

Usage of the HAVE_FP_EXCEPT symbol has been removed via
c3340584128a9c8b75e2c1aa5630911ad2dc9b9f and isn't used in current code
anymore.

Remove unused PHP_AC_BROKEN_SPRINTF and AC_ZEND_BROKEN_SPRINTF

The sprintf function has been normalized to php_sprintf via
61364b5bb172fa512c871b795c2613b1b587e4cd.

This patch r

Remove unused PHP_AC_BROKEN_SPRINTF and AC_ZEND_BROKEN_SPRINTF

The sprintf function has been normalized to php_sprintf via
61364b5bb172fa512c871b795c2613b1b587e4cd.

This patch removes the checks to make a custom sprintf function

The ZEND_BROKEN_SPRINTF has been removed and the
hardcoded #define zend_sprintf sprintf is used.

The php_sprintf and zend_sprintf are now symbols to sprintf.

This patch now removes the custom PHP definitions of the php_sprintf and
zend_sprintf functions in favor of the C99 sprintf which is also
standardized in C89 already. Once, on some systems sprintf didn't behave
in same way.

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Remove separate *nix system build for Zend engine

Removed files used to provide building Zend engine separately using
Autoconf and Automake:
cd Zend && ./buildconf && ./configure

Remove separate *nix system build for Zend engine

Removed files used to provide building Zend engine separately using
Autoconf and Automake:
cd Zend && ./buildconf && ./configure

Since Zend engine is tightly integrated in the PHP code itself and
current root configure.ac and acinclude provide this patch removes
these. Removed files also included several obsolete macros and
Automake dependency which is not used in main *nix PHP build system.

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Remove support for Rhapsody code name

The Rhapsody code name was once used for computers with operating system
by Apple and was mostly replaced with a newer code name Darwin:
- https

Remove support for Rhapsody code name

The Rhapsody code name was once used for computers with operating system
by Apple and was mostly replaced with a newer code name Darwin:
- https://en.wikipedia.org/wiki/Rhapsody_(operating_system)
- https://en.wikipedia.org/wiki/Darwin_(operating_system)

This patch removes obsolete checks from the *nix build script files.

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Fix #76825: Undefined symbols ___cpuid_count

Apparently, the presence of `cpuid.h` is not necessarily sufficient to
guarantee the availability of `__cpuid_count()`. We therefore test fo

Fix #76825: Undefined symbols ___cpuid_count

Apparently, the presence of `cpuid.h` is not necessarily sufficient to
guarantee the availability of `__cpuid_count()`. We therefore test for
the latter explicitly.

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Trim trailing whitespace in source code files

Trim trailing whitespace in source code files

Remove HAVE_STDARG_H

The C89 standard and later defines the `<stdarg.h>` header as part of
the standard headers [1]. On current systems it is always present and
can be included uncon

Remove HAVE_STDARG_H

The C89 standard and later defines the `<stdarg.h>` header as part of
the standard headers [1]. On current systems it is always present and
can be included unconditionally.

Checking for presence and functionality of the `<stdarg.h>` header and
variadic function is not relevant anymore on current systems since this
is always available.

Also Autoconf suggests relying on at least C89 or above [2] and [3].

The following files were regenerated with re2c 1.0.3:
- Zend/zend_language_scanner.c
- Zend/zend_language_scanner_defs.h

Refs:
[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_STRING_H

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

Code included al

Remove HAVE_STRING_H

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

Code included also `<strings.h>` header as an alterinative in some
files. This kind of check was relevant on some older systems where the
`<strings.h>` file included definitions for the C89 compliant
`<string.h>`. Today such alternative check is not required anymore. The
`<strings.h>` file is part of the POSIX definition these days.

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

This patch also cleans few unused `<strings.h>` inclusions in the libmbfl.

[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 unused HAVE_MEM_MMAP_ANON and HAVE_MEM_MMAP_ZERO checks

These haven't been used since the MM rewrite in PHP 7.0. Nowadays
we assume that either MAP_ANON or MAP_ANONYMOUS is availa

Remove unused HAVE_MEM_MMAP_ANON and HAVE_MEM_MMAP_ZERO checks

These haven't been used since the MM rewrite in PHP 7.0. Nowadays
we assume that either MAP_ANON or MAP_ANONYMOUS is available.

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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 AC_FUNC_MEMCMP

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

On some o

Remove AC_FUNC_MEMCMP

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

On some old systems such as SunOS 4.1.3 (EOL in 2003) and NeXT x86
OpenStep (discontinued) the `memcmp` function wasn't present or it
didn't work properly. [2]

On current systems including at least Solaris 10+ this check is not
relevant anymore.

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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Fixed bug #76825 (Undefined symbols ___cpuid_count)

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 TSRM_CHECK_GCC_ARG and LIBZEND_CPLUSPLUS_CHECKS

This removes two old Autoconf macro definitions since they are not used
anymore.

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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Remove obsolete AC_TYPE_SIGNAL

The AC_TYPE_SIGNAL macro defined the RETSIGTYPE based on the signal
type defined in the signal.h. On pre C89 sistems (K&R C) it could be
void or int. S

Remove obsolete AC_TYPE_SIGNAL

The AC_TYPE_SIGNAL macro defined the RETSIGTYPE based on the signal
type defined in the signal.h. On pre C89 sistems (K&R C) it could be
void or int. Since C89 it can be safely assumed that the signal and
therefore the RETSIGTYPE is always void, so the RETSIGTYPE can be
replaced with void in the code if it uses it. PHP doesn't use the
RETSIGTYPE in current code anyway.

Refs:
- 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 in

Trim trailing whitespaces in build files

Some editors utilizing .editorconfig automatically trim whitespaces. For
convenience this patch removes whitespaces in certain build files in
Zend and TSRM folders.

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