CMake 2.8.4 crashed on this line
IF(something AND IS_DIRECTORY(something_else))
when both "something" and "something_else" were empty.
Changing the line slightly (using cascading "IF" instead) solved the crash.
The general technique to generate MSI using CMake is taken from MySQL 5.5
Additional features not present in 5.5 installer :
-optionally creating a new database
(as Windows service), using new mysql_install_db.exe to do the job
- optional upgrade of existing services from old MySQL or Maria installation.
This work is actually done by the upgrade wizard that is launched at the
end of installation.
