in the 5.0 tree and now merged to the 5.1 tree):

# ChangeSet
#   2006/07/29 07:17:33+04:00 aivanov@mysql.com 
#   Make innodb_flush_log_at_trx_commit a settable global variable.
# 
# sql/ha_innodb.cc
#   2006/07/29 07:17:29+04:00 aivanov@mysql.com +1 -3
#   Remove innobase_flush_log_at_trx_commit
#   (set srv_flush_log_at_trx_commit directly).
# 
# sql/ha_innodb.h
#   2006/07/29 07:17:29+04:00 aivanov@mysql.com +1 -1
#   Remove innobase_flush_log_at_trx_commit.
#   Declare srv_flush_log_at_trx_commit.
# 
# storage/innobase/include/srv0srv.h
#   2006/07/29 07:17:30+04:00 aivanov@mysql.com +1 -1
#   Change the type of srv_flush_log_at_trx_commit.
# 
# storage/innobase/srv/srv0srv.c
#   2006/07/29 07:17:30+04:00 aivanov@mysql.com +1 -1
#   Change the type of srv_flush_log_at_trx_commit.
#