Remove unnecessary quotes and simplify plug.in.

Use PAUSE instruction inside spinloop if it is available.

The patch was originally developed by Mikael Ronstrom <mikael@mysql.com>
and can be found here:
http://bazaar.launchpad.net/%7Emysql/mysql-server/mysql-5.4/revision/2768
http://bazaar.launchpad.net/%7Emysql/mysql-server/mysql-5.4/revision/2771
http://bazaar.launchpad.net/%7Emysql/mysql-server/mysql-5.4/revision/2772
http://bazaar.launchpad.net/%7Emysql/mysql-server/mysql-5.4/revision/2774
http://bazaar.launchpad.net/%7Emysql/mysql-server/mysql-5.4/revision/2777
http://bazaar.launchpad.net/%7Emysql/mysql-server/mysql-5.4/revision/2799
http://bazaar.launchpad.net/%7Emysql/mysql-server/mysql-5.4/revision/2800

Approved by:	Heikki (rb://137)

Non functional change. s/Percona/Percona Inc./

(ISO 8859-1 encoded U+00AD SOFT HYPHEN) with a cheap ASCII substitute.

as this function is used within InnoDB Hot Backup.

with UNIV_HOTBACKUP.

Invoke os_get_os_version() at most once.

very similar to ha_search_and_delete_if_found().

This function is unused, but it could turn out to be a useful debugging aid.

to track down Issue #289.

or SET GLOBAL innodb_file_format_check=DEFAULT.

innodb_file_format.test: New test for innodb_file_format and
innodb_file_format_check.

innodb_file_format_name_validate(): Store the string in *save.
innodb_file_format_name_update(): Check the string again.

innodb_file_format_check_validate(): Store the string in *save.
innodb_file_format_check_update(): Check the string again.

Issue #282, rb://140 approved by Heikki Tuuri

Do not do arithmetics on void pointers.

Tolerate missing tablespaces (zip_size==ULINT_UNDEFINED).
buf_page_get_gen(): Add ut_ad(ut_is_2pow(zip_size)).

Issue #289, rb://136 approved by Sunny Bains

buf_fix_count.  This could explain Issue #156.
Tested by Michael.

Start prebuilt->trx before locking the table.  This should fix Issue #293
and could fix Issue #229.
Approved by Sunny (over IM).

SET GLOBAL innodb_commit_concurrency=DEFAULT. (Bug #45749)
When innodb_commit_concurrency is initially set nonzero,
DEFAULT would change it back to 0, triggering Bug #42101.
rb://139 approved by Heikki Tuuri.

This addresses Bug #44571 but does not fix it.
rb://135 approved by Sunny Bains.

Suggested by Marko.

Change the header file path from ../storage/innobase/include/
to ../include/. In the planned 5.1 + plugin release, the source
directory of the plugin will not be in storage/innobase.

Approved by: Heikki (IM)

for Hot Backup build (UNIV_HOTBACKUP defined).
This change should not affect !UNIV_HOTBACKUP build.

code bracketed between #ifdef UNIV_HOTBACKUP and #endif /* UNIV_HOTBACKUP */).
This change should not affect !UNIV_HOTBACKUP build.

ROW_FORMAT=DEFAULT, do not compare to get_row_type().
Without this change, fast index creation will be disabled
in recent versions of MySQL 5.1.

block_mutex being possibly uninitialized.

Add ChangeLog entry for r5342.