sorry for the inconvenience, it was a false alarm .
I have checked it again and it builds fine.
I do not know what went wrong at the time I saw the error.
I also checked the latest release version (1952) and it is also ok.
But I still have a request:
Can we take the last copy command out of the 'domake' script?
I think it should be included in the install step, doesn't it?