[tlbuild] texk/web2c/omegafonts/check.test: Inconsistent behaviour

[Karl Berry]

    astonished that the tests' success may depend on the way of calling

Clearly that should not be the case.

One thing that occurs to me offhand is the environment. Maybe insert an
env|sort command into the test script before the omfonts call, and see
if there are any meaningful differences.

Or maybe running valgrind omfonts ... in the test script, if you have it.
(Or similar.)

Failing that, down to inserting print statements in the source.
Unfortunately I don't think these programs have much if any
logging/tracing.

Of course, the malloc() error should not happen regardless, but I can't
guess the culprit offhand :(. -k