applying bundle made for next-mr-bugfixing to trunk-bugfixing branch of the bug

applying bundle made for next-mr-bugfixing to trunk-bugfixing branch of the bug

Bug#47139: Test "merge" crashes in "embedded" run

Backport patch for Bug#47139

Backport from mysql-next-mr (5.6) to mysql-trunk (5.5)

Backport from mysql-next-mr (5.6) to mysql-trunk (5.5)

Backport from mysql-next-mr (5.6) to mysql-trunk (5.5)

Backport from mysql-next-mr (5.6) to mysql-trunk (5.5)

Backport from mysql-next-mr (5.6) to mysql-trunk (5.5)

of the "embedded" server

Problem: mysqltest_embedded failed to load ha_innodb_plugin library
on some platforms (due to some unresolved references).

Fix: on FreeBSD use -export-dynamic flag building mysqltest_embedded.
That allows to use its global symbols to resolve references in the
dynamically loaded plugin library.

Backport from mysql-next-mr (5.6) to mysql-trunk (5.5)

Backport from mysql-next-mr (5.6) to mysql-trunk (5.5)

Backport from mysql-next-mr (5.6) to mysql-trunk (5.5)

Backport from mysql-next-mr (5.6) to mysql-trunk (5.5)

Backporting the fix from myql-next-mr (5.6) to mysql-trunk (5.5)

This fix is for cleanup, to resolve a remaining code review item.
Backport from mysql-next-mr (5.6) to mysql-trunk (5.5).

Fixed minor merge issues with #includes

Post-merge fix: adjust line numbers in pfs_upgrade test case
result given that mysql_system_tables_fix.sql was modified.

mysql_config. Those are mainly warning options intended
to monitor the server code and shouldn't be leaked to
client code.

Silence bogus aliasing warning through a pointer indirection. Also,
no need to check the return of a placement new.

Restore hack necessary to setup a libmysqld archive.

Fix compiler warnings due to: a mismatch in the prototypes for
check_access and implicit conversions from double to ulonglong
and vice-versa.

Remove OS/2 specific code.

Remove QNX specific code.

Remove VMS specific code.

Remove Zortech specific code.

Remove MS-DOS specific code.

Remove Netware specific code.

Calculating the estimated number of records for a range scan
may take a significant time, and it was impossible for a user
to interrupt that process by killing the connection or the
query.

Fixed by checking the thread's 'killed' status in
check_quick_keys() and interrupting the calculation process if
it is set to a non-zero value.