IIRC, this is actually explained in the Camel. The prime
reason Perl is implemented in C (and one of the reasons
the Topaz project is discontinued) is that C compilers are
available for about any platform you can imagine.
This is not true for C++. You do have to realize that Perl
runs on a wild range of platforms, a range that goes much
further than Unix/Windows/Mac.
Abigail