[tlbuild] Building on Macintosh

[Karl Berry]

    I believe that "make check" stops at the first error, 

Indeed.  By design.  The idea being that usually one can fix the problem
quickly, and it's simpler to have it fail and stop so one can focus on
the first problem without having to read through the whole voluminious
log to figure out how many "real" errors there were, etc.

If you run make -k check (or make -k <whatever>), it will continue as
best as it can past errors.  E.g., it would give up on chktex but then
continue on to other problems.

Best,
k