NASTY PROBLEM WITH READING TFM FILES IN LATEST METAPOST

A nasty problem has surfaced that Taco Hoekwater cannot solve, because it does not occur on his system. My system is Apple Macintosh 10.5.6 and I am using the command "sh build.sh" to compile metapost-1.101.

After compiling and generating with "mpost --ini mpost" the error message below result when calling "make" in the manual-directory of the distribution. It signals a bad tfm file, I guess because the wrong number of bytes is read. Some 16/32/64 bit issue perhaps? Taco has not found it and as his compile now runs "lint-free" it is difficult to imagine what can be wrong.
Are there people in this group (preferably on Macintosh) who find the same thing happening? And then are far more apt with debuggers than I am?

Many thanks in advance.
Hans van der Meer