Autotools: Sync CS in pdo_odbc (#15466)

- Obsolete backticks replaced with $(...)
- Few redundant double quotes around variables removed
- AS_VAR_IF used
- indentation synced

Autotools: Use AS_CASE in ext/pdo_odbc (#15355)

Autotools: Remove PDO dependency related errors (#15347)

Follow-up of GH-15344 (687eb9125abf39b32512f2b001e3163f5fb5f45e)

This removes the customized error messages in PDO extension

Autotools: Remove PDO dependency related errors (#15347)

Follow-up of GH-15344 (687eb9125abf39b32512f2b001e3163f5fb5f45e)

This removes the customized error messages in PDO extensions when PDO is
not enabled (--disable-all or --disable-pdo) in favor of the default
error done by PHP_ADD_EXTENSION_DEP.

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Autotools: Replace AC_MSG_ERROR with AC_MSG_FAILURE (#15209)

This replaces the AC_MSG_ERROR with AC_MSG_FAILURE, where appropriate.

The AC_MSG_ERROR outputs given message and exits

Autotools: Replace AC_MSG_ERROR with AC_MSG_FAILURE (#15209)

This replaces the AC_MSG_ERROR with AC_MSG_FAILURE, where appropriate.

The AC_MSG_ERROR outputs given message and exits the configure step. The
AC_MSG_FAILURE does the same but also automatically outputs additional
message "See 'config.log' for more details." which might help directing
the user where to look further.

The AC_MSG_ERROR is used for errors where current test step isn't logged
in the config.log and wouldn't make sense, and AC_MSG_FAILURE is mostly
used in cases of library checks, compilation tests, headers checked with
AC_CHECK_HEADER* and similar tests that are also logged in the
config.log.

AC_MSG_ERROR([Sanity check failed.]) output:

```
configure: error: Sanity check failed.
```

AC_MSG_FAILURE([Sanity check failed.]) output:

```
configure: error: in '/path/to/php-src':
configure: error: Sanity check failed.
See 'config.log' for more details
```

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Autotools: Normalize and quote all PHP_NEW_EXTENSION arguments (#15144)

This adds Autoconf quote characters to all PHP_NEW_EXTENSION arguments
and syncs the CS across the php-src Autotoo

Autotools: Normalize and quote all PHP_NEW_EXTENSION arguments (#15144)

This adds Autoconf quote characters to all PHP_NEW_EXTENSION arguments
and syncs the CS across the php-src Autotools build system.

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Autotools: Quote PHP_CHECK_LIBRARY arguments (#15136)

This syncs the quotes across the PHP_CHECK_LIBRARY macro arguments.

Check for iODBC and unixODBC with pkg-config in PDO_ODBC (#14963)

* Check for iODBC and unixODBC with pkg-config in PDO_ODBC

PDO_ODBC required that these backends had their path spe

Check for iODBC and unixODBC with pkg-config in PDO_ODBC (#14963)

* Check for iODBC and unixODBC with pkg-config in PDO_ODBC

PDO_ODBC required that these backends had their path specified manually,
which was clumsy and contrary to how procedural ODBC checked it. This
adds a pkg-config based path to check for these backends that ignores
the 'dir' part of the flag, so i.e. --with-pdo-odbc=unixODBC should pick
it up from the correct location.

Generic and the special ibm-db2 usecase should be unaffected. The header
situation is unfortunately ugly, and has a workaround; this should also
be cleaned up.

* Move check for valid headers to after

* Use existing CFLAGS for PDO_ODBC header check

...instead of a separate funny variable. It does mean we have to save
and restore the value of CPPFLAGS, as AC_CHECK_HEADERS and friends rely
on that variable instead of CFLAGS.

Co-authored-by: Peter Kokot <peterkokot@gmail.com>

* Move PDO_ODBC_TYPE to AC_DEFINE, simplify CFLAGS handling

The variable PDO_ODBC_INCLUDE becomes redundant, as is the CFLAGS
override for PHP_NEW_EXTENSION if we call PHP_EVAL_INCLINE in the
generic case.

Co-authored-by: Peter Kokot <peterkokot@gmail.com>

* Use same variable names so evals can be combined

* Fix identation

* Suggested shell syntax cleanups

---------

Co-authored-by: Peter Kokot <peterkokot@gmail.com>

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Autotools: Refactor PDO_ODBC_CHECK_HEADER (#14935)

- Macro renamed to PHP_PDO_ODBC_CHECK_HEADER
- AC_DEFINE_UNQUOTED used instead of PHP_DEF_HAVE
- help texts added to CPP macro defi

Autotools: Refactor PDO_ODBC_CHECK_HEADER (#14935)

- Macro renamed to PHP_PDO_ODBC_CHECK_HEADER
- AC_DEFINE_UNQUOTED used instead of PHP_DEF_HAVE
- help texts added to CPP macro definitions
- CS synced a bit

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Autotools: Quote PHP_SUBST arguments in extensions (#14748)

Simplify PDO include paths (#14444)

PDO include paths can be simplified and synced as done in other
extensions: either the project root directory or the phpincludedir (for
the system

Simplify PDO include paths (#14444)

PDO include paths can be simplified and synced as done in other
extensions: either the project root directory or the phpincludedir (for
the system installation). The 'ext' include is automatically appended
when doing phpize build. In php-src it is only present on Windows build.
The PHP_CHECK_PDO_INCLUDES is left intact working as before and checks
if PDO headers are found.

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Remove ODBCRouter artifacts (#12846)

ODBCRouter flavor in odbc extension(s) was removed in PHP 7.3 via
398be731e67113a860c43564370e3a22af46d2ec.

Remove conditional calls of always available macros

These checks were once relevant for these extensions in PECL and PHP
versions without availability of the checked macros.

Clo

Remove conditional calls of always available macros

These checks were once relevant for these extensions in PECL and PHP
versions without availability of the checked macros.

Closes GH-4405

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Simplify PHP_CHECK_PDO_INCLUDES calls

Conditional checks were once used for backwards compatibility with
phpize from PHP versions that didn't have this macro call yet.

Closes GH

Simplify PHP_CHECK_PDO_INCLUDES calls

Conditional checks were once used for backwards compatibility with
phpize from PHP versions that didn't have this macro call yet.

Closes GH-4376

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Normalize comments in *nix build system m4 files

Normalization include:
- Use dnl for everything that can be ommitted when configure is built in
favor of the shell comment characte

Normalize comments in *nix build system m4 files

Normalization include:
- Use dnl for everything that can be ommitted when configure is built in
favor of the shell comment character # which is visible in the output.
- Line length normalized to 80 columns
- Dots for most of the one line sentences
- Macro definitions include similar pattern header comments now

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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 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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Change some permissions from 755 to 644

This patch syncs file permissions accross the PHP source code files
since these don't need to be executable.

Fix minor Autoconf coding style

This fixes two minor Autoconf coding styles. Double quotes in arguments
don't need to be escaped. This removes warning given by autoreconf:
- warning:

Fix minor Autoconf coding style

This fixes two minor Autoconf coding styles. Double quotes in arguments
don't need to be escaped. This removes warning given by autoreconf:
- warning: back quotes and double quotes must not be escaped in...

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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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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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Look for PDO include files in the right folder

Configure scripts for extensions look for PDO include files in
$prefix/include/php. This change makes them look into $phpincludedir
ins

Look for PDO include files in the right folder

Configure scripts for extensions look for PDO include files in
$prefix/include/php. This change makes them look into $phpincludedir
instead, which may be different from $prefix/include/php.

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

Cache the pdo include path

Revert attempt at supporting both autoconf 2.13 and
modern versions in the same build chain. There are
simply too many broken things in 2.13 to make it work.
Cache handling is broken as

Revert attempt at supporting both autoconf 2.13 and
modern versions in the same build chain. There are
simply too many broken things in 2.13 to make it work.
Cache handling is broken as well which is why I need
to revert the pdo_inc_path cache fix as well.

trunk is now 2.60+ only and I'll work on cleaning out
all the legacy cruft from there.

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Someone strap down Jani and give him a sedative please.
This makes our toolchain work with the latest versions
of autoconf and avoids a lot of end-user grief.