a compiler for perl

[Siddhartha Jain]

hi,

I really don't know if this is the right place for this posting but anyway 
here it is. Its about can you have a compiler for perl or for that matter 
any scripting language?

My understanding is that since scripting languages don't have to declare the 
variables to be used beforehand so the scripts cannot be compiled because 
the compiler wouldn't know how much space to allocate and other similar 
memory management related problems.

So first am i right? If yes, are there other reasons too why scripts cannot 
be compiled. I was going thru' perl-howtos and i found a link for compiling 
perl scripts. i didn't follow the link but it was supported by only Perl4 
not Perl5.

Lastly, since my knowledge of computer science is limited i would like to 
apologise if this is not the right place for this posting.

Siddhartha
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