I had some trouble installing PDK 7.0 Beta 1 on a x86_64 box (Dell
PowerEdge 2950) running Debian Sarge (2.6.17-7 kernel).  I'm including
the details here in case anybody else runs into the same issue.

I first downloaded, compiled, and installed the ActivePerl 5.8.8.819
sources.  When I configured it, I chose interpreter-based threads,
multiplicity, and long doubles.

But then when I ran the PDK installer, it complained:

   Found 0 compatible versions of Perl on this system.

       Note that the following version of Perl is not compatible with
       this product:

           /usr/bin/perl:
               - '/usr/bin/perl' (x86_64-linux-thread-multi-ld) is not
   binary compatible with ActivePerl (x86_64-linux-thread-multi)

I could see that the "-ld" component of the name was different, so I
tried re-configuring ActivePerl *without* long double support, then
compiling and installing.  Once I did this, the PDK installation went
without a hitch.

Steve Rowe