On a Solaris box in a "mysterious production system" I'm running a Perl script that references an environment variable. No big deal.

The contents of that variable from the shell both pre- and post-execution are what I expect.

However, when reported by the script, it appears as though it's running in some other sub-shell which is clobbering my vars with different values for the duration of the script.

Unfortunately I really can't paste the code. I'm trying to get an atomic case, but I'm at my wit's end here.