Hello Kurt, I have just run into related problems with the new automake version, but also did some more digging:
It seems TESTS_ENVIRONMENT *is* used/available, it's just now part of the definition of am__check_pre. But if you happen to use it to specify a wrapper (like I did), this won't work anymore, as is detailed here: http://www.gnu.org/software/automake/manual/automake.html#Parallel-Test-Harness I don't know what the symptoms were that you observed (which led to the diagnosis of TESTS_ENVIRONMENT having been lost), but maybe this helps. Best, Michael
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