Beagleboard Libblas and Lapack libraries needed

Hello,

I am trying to cross-compile a OpenCV sample program for my beaglebone by following this guide: http://carboncopycat.wordpress.com/2011/12/21/cross-compile-a-beagleboard-arm-opencv-application-2/

But I am stuck at this step:

I need /usr/lib/libblas and/usr/lib/lapack libraries included (?) in beagleboard image. Could anyone please send them to me?

Regards