Shared object "libcrypt.so.4" not found ...(or library munging after make-delete-old)

[mikel king]

As expected several port needed to be rebuilt however I have hit a  
roadblock with the built in perl with.

===>    Verifying install for /usr/local/lib/perl5/site_perl/5.8.8/ 
Date/Parse.pm in /usr/ports/devel/p5-TimeDate
===>   p5-TimeDate-1.20,1 depends on file: /usr/local/bin/perl5.8.8 -  
found
===>  Configuring for p5-TimeDate-1.20,1
/libexec/ld-elf.so.1: Shared object "libcrypt.so.4" not found,  
required by "perl5.8.8"

I would have thought that perl was rebuilt when I make the world and  
upgraded from 7.x to 8.0.

Anyone have a quick and easy fix out of this mess?

Thanks in advance.

Cheers,
Mikel