Not to re-open an old wound, but I ran across something this weekend which might be relevant: I was porting a Perl script which I wrote from Win32 systems to both MacPerl and to FreeBSD, and found that my open calls, such as

open(FH, '>', 'Myfile.txt');
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needed to be rewritten as

open (FH, '>Myfile.txt');
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The error message I was getting was "too many arguments", so this may be something entirely different from the above problem, but it did make me come back and have a look at this thread. Anyway, here it is, just in case it helps someone.