Hi,
I think you didn't use 'search' of this forum.
...
I am not testing 6.5.0.f fresh install with mysql55 but latest version of 6.5.0.f (2014040701) already using mysql55.
Of course, I did search but found no solution to the above problem, as it was a bit different.
The problem occures when I attempted to install the latest version of 6.5.0.f (2014040701).
The main problem is that it does not completely install the binary or kloxomr installation is not completed.
Hence, it does not recognize the /script/dir also. It tried to install php52 and breakes.