flags are being used correctly.

Don't create empty ChangeLog.

locations.

Add ChangeLog.

Make mysql.info optional.

prefers to take docs directly from the source tree.

correct location.

which was detected during the build of 5.5.3-m3.
This requires version 9 of IBM C++ to help.

More fixes will still be needed, it is very strict
(or rather: a bit picky?) about templates.

about handling the debug plugin files,
also "ha_example.*" are dropped.

While here:

 - split INSTALL_*DIR variables into two sections, first set the major
   variables, then second set the minor ones, using the major where
   appropriate.

 - format the settings for easier parsing (at least with a wide terminal)

archive storage engine headers don't include my_global.h first


During the build of 5.5.3-m3 on older Linux platforms
(kernels 2.4 or early 2.6),
the symptom described in the bug report occurred both
in the "archive" and in the "innobase" storage engine.

This change is the patch proposed in that bug report,
and a similar one in innobase, that latter is aligned
with Vasil Dimov of Innobase, the original author.

as found necessary during the release build of 5.5.3-m3.

A variable declaration was preceded by "DBUG_PRINT()".

extracted from a work-in-progress development branch
just for the build of 5.5.3-m3.

The "cmake" way still shows issues in our release build environment.
Block it temporarily, but in a way that can easily be undone.

This change is to be reverted once the problems are solved.