I was looking on CPAN for something else and stumbled across just the module you're looking for:
Readonly.
The POD's first line says:
Readonly - Facility for creating read-only scalars, arrays, and hashes.
use Readonly;
Readonly::Array my @arr => @values;
It appears to be just that easy. Read the POD though. Apparently there is a considerable speed-performance hit. The POD states that if you can also install the Readonly::XS module on your system, the performance hit is substantially mitigated.
Hope this helps!
Dave
"If I had my life to live over again, I'd be a plumber." -- Albert Einstein
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