Building Clearsilver under LTIB

Hi,

I'm building Clearsilver under LTIB for use on a Freescale PowerPC platform.  A problem arises when the configure script wants to run Python (or Perl for that matter) to fetch the version and exec prefix.  Running Python on my build platform doesn't help since the version and exec prefix might be different on the target platform.  What I'd like to do in the case of cross-compiling, is just tell the script the Python version and anything else it needs.  

Is there a flag or option I missed that can do this?

Thanks,
Rick.