PERL_LEVEL conditional dependencies

[Alan, Cheng-Lung Sung]

Yes, I thought it may not impact too much (only eye's checking :-/) . 
Since every pr only need to read an extra file (bsd.perl.mk), and their 
behavior should retain......

On Fri, 13 Aug 2004 12:41:45 +0400, Sergey Matveychuk <sem at freebsd.org> wrote:
> Oliver Eikemeier wrote:
> 
> > We always test such changes with a pointyhat (former bento) run. Trivial
> > changes sometimes have a big impact...
> 
> You can see an attached patch for imaging what modifications to ports
> should be done.
> 
> --
> Sem.
> 
> 
> Index: audio/mp3riot/Makefile
>