Tried doing the install on the Mac and I received:

Checking if your kit is complete...
Looks good

    I see you're using perl 5.008006 on darwin-thread-multi-2level, ok
+ay.
    Remember to actually *read* the README file!
    Use  'make' to build the software (dmake or nmake on Windows).
    Then 'make test' to execute self tests.
    Then 'make install' to install the DBI and then delete this workin
+g
    directory before unpacking and building any DBD::* drivers.

Writing Makefile for DBI
Can't exec "-j3": No such file or directory at /System/Library/Perl/5.
+8.6/CPAN.pm line 4566.
   -j3 -- NOT OK
Running make test
  Can't test without successful make
Running make install
  make had returned bad status, install seems impossible
Running make for M/MS/MSERGEANT/DBD-SQLite-1.13.tar.gz
  Is already unwrapped into directory /Users/mike/.cpan/build/DBD-SQLi
+te-1.13

  CPAN.pm: Going to build M/MS/MSERGEANT/DBD-SQLite-1.13.tar.gz

Can't exec "-j3": No such file or directory at /System/Library/Perl/5.
+8.6/CPAN.pm line 4566.
   -j3 -- NOT OK
Running make test
  Can't test without successful make
Running make install
  make had returned bad status, install seems impossible
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