this is a followup cset after changes suggested by Serg.

into mdk10.(none):/home/reggie/bk/41test3

  Post-review modifications for the fix of bug #7894.

  Added test cases for bug #7894.
sql_select.cc:
  Fixed bug #7894: GROUP BY queries with ROLLUP returned
  wrong results for expressions containing group by columns.
  The fix ensured correct results by replacement of all
  occurrences of group by fields in non-aggregate expressions
  for corresponding ref objects and preventing creation of
  fields in temporary tables for expression containing group
  by fields.

into serg.mylan:/usr/home/serg/Abk/mysql-4.1

sql_acl.cc:
  Make sure host.db is a valid string pointer before we do our lower_case_table_names comparison

into neptunus.(none):/home/msvensson/mysql/mysql-4.1

into sanja.is.com.ua:/home/bell/mysql/bk/work-4.1

into mysql.com:/M41/mysql-4.1

into hundin.mysql.fi:/home/marko/mysql-4.1

into neptunus.(none):/home/msvensson/mysql/mysql-4.1

Added some more ifdefs for "#pragma interface"

Added a missing "make clean" to the RPM "spec" file which had caused the original 4.1.12 RPMs to be broken.
(bug#10674, bug#10681)

into mysql.com:/home/my/mysql-4.1

Faster detection of wrong table names (like PRN) on windows

into sinisa.nasamreza.org:/mnt/work/mysql-4.1

into serg.mylan:/usr/home/serg/Abk/mysql-4.1

into zim.(none):/home/brian/mysql/mysql-4.1

into sinisa.nasamreza.org:/mnt/work/mysql-4.1

into ua141d10.elisa.omakaista.fi:/home/my/bk/mysql-4.1

into mdk10.(none):/home/reggie/bk/41test2

into xiphis.org:/usr/home/antony/work2/p3-bug7241.5

  Only acquire necessary write lock for multi-delete