That's a fair question.
Perlmonks is most likely to understand what unless(caller) { main; } does; that's been the largest barrier to communication so far. I basically want to replicate this snippet in as many programming languages as possible, because I prefer my software to work well in shell script environments.
Strawberry Perl's GCC compiler happens to be the locus of the problem, because it does not recognize the same macros that GCC does in an ordinary Unix environment. Any Perl monks familiar with Strawberry Perl's internals could help with this issue.
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