configure file on MAC build

How do I locate and invoke the configure script on the MAC version of R? Is
there a config.site file?

Is this something that requires you to download the tar ball for R source
and not supplied with the dmg?

thanks!

peter r

................................
 Peter E. Rossi
 Joseph T. and Bernice S. Lewis Professor of Marketing and Statistics
 Director, Kilts Center for Marketing
 Editor, Quantitative Marketing and Economics
 Rm 353, Graduate School of Business, U of Chicago
 5807 S. Woodlawn Ave, Chicago IL 60637
 Tel: (773) 702-7513   |   Fax: (773) 834-2081
 WWW: http://ChicagoGsb.edu/fac/peter.rossi
 SSRN: http://ssrn.com/author=22862