1) Modified abi_check rule to not write into the
   distribution directory.
2) Added the .pp files to EXTRA_DIST so that it will
   be included in the distribution

Add the abi_check rule to the main build.

Modified the abi_check target to check for only
mysql.h and plugin.h for now.

Merging changes from 5.1 main tree to 5.1-sea team tree.

   Bug#36787 Test funcs_1.charset_collation_1 failing
Details:
1. Skip charset_collation_1 if charset "ucs2_bin" is
   missing (property which distincts "vanilla" builds
   from the others)
2. Let builds with version_comment LIKE "%Advanced%"
   (found them for 5.1) execute charset_collation_3.
3. Update comments charset_collation.inc so that they
   reflect the current experiences.

Bug#37492 timing bug in subselect.test
+ similar weaknesses found during testing
+ replace error numbers by error names

Bug#35480: BOM detection code crashes mysql CLI with zero-sized input
      
MySQL client crashed if no input was passed to it.

Bug#33812: mysql client incorrectly parsing DELIMITER
      
Remove unnecessary and incorrect code that tried
to pull delimiter commands out of the middle of
statements.

            as a commentary

mysql client has been modified to interpret EOL after
standalone -- commentary strings like whitespace
character (according to
http://dev.mysql.com/doc/refman/5.0/en/ansi-diff-comments.html)

Remove unnecessary and incorrect code that tried
to pull delimiter commands out of the middle of
statements.

                        
      The crash appeared to be a result of allocating an instance of Discrete_interval 
      automatically that that was referred in out-of-declaration scope.
                        
      Fixed with correcting backing up and restoring scheme of
      auto_inc_intervals_forced, introduced by bug#33029, by means of shallow copying;
      added simulation code that forces executing those fixes of the former bug that
      targeted at master-and-slave having incompatible bug#33029-prone versions.

Another problem is that the backtrace facility wasn't being
enabled for non-Linux targets even if the target OS has the
backtrace functions. Also, the stacktrace functions inside
mysqltest were being used without proper checks for their
presence in the build.

                  replicated correctly between machines with
                  mixed endiannes

On a slow environment like valgrind the test is vulnerable
because it does not check if slave has stopped at time
of the new session is requested `start slave;' -- disabling
test till it is fixed.

ha_innodb.so was incorrectly installed in the lib/mysql
directory rather than in lib/mysql/plugin.

Amending CS for 31736.

MySQL client crashed if no input was passed to it.

The value of JOIN::tables must be set to 0 when there
is no matching min/max row.

   37167 funcs_1: Many tests fail if the embedded
                  server is used.
   37164 funcs_1: Some tests fail if an optional
                  character set is missing.
   + some cleanup within the testsuite related to the
     fixes above
   + some adjustments to open bugs on Mac OS X
2. Skip tests which suffer from bug
   37456 funcs_1: Several tests crash when used
                  with embedded server
3. Minor cleanup in some tests

The problem was that when a embedded linked version of mysqltest
crashed there was no way to obtain a stack trace if no core file
is available. Another problem is that the embedded version of
libmysql was not behaving (crash) the same as the non-embedded with
respect to sending commands to a explicitly closed connection.

The solution is to generate a mysqltest's stack trace on crash
and to enable "reconnect" if the connection handle was explicitly
closed so the behavior matches the non-embedded one.

     Bug#37167 funcs_1: Many tests fail if the embedded server is used.
     Bug#37164 funcs_1: Some tests fail if an optional character set is missing.
+ some cleanup within the testsuite related to the fixes above
+ some adjustments to open bugs on Mac OS X

This change was committed to the 5.1.25 release clone, but never
made it to the mysql-5.1 BK tree.  I'm committing it to mysql-5.1
bzr now.

make_binary_distribution.sh got clobbered by the 5.0 version during a merge.
This caused a few packaging problems, including message files put in the wrong
place and some missing files.  Fix is just to revert back to the 5.1 version
from before the merge.

Problem introduced in
ChangeSet 1.2606.2.1 2008/05/13 15:56:07 kent@kent-amd64.(none)

This change was made in the 5.1.25 release clone in BK, but never made it to the main mysql-5.1 BK tree.  I am adding it to mysql-5.1 bzr.

The problem was that when comparing tables for a possible
fast alter table, the comparison was being performed using
the parsed information and not the final definition.
      
The solution is to use the possible final table layout to
compare if a fast alter is possible or not.

added a rule that use gcc to generate preprocessor output (gcc -E)
that can be then compared to a already generated output using 
the diff utility.

Ran make test on the repository to verify changes.