[U-Boot] Cloning, Maybe silly question

I have a suggestion/question.

Would it be easy, hard, silly to add a CLONE command to the make file? (Are a separate make script?) So if someone wants to create a new board based on an existing board they could just type,

make CLONE at91sam6263ek_CONFIG myboard

or if it's script

./clone.sh at91sam6263ek_CONFIG myboard

The make file would clone the at91sam9263ek board configuration and put it in a new directory called myboard and update the makefile?

Matt Harper Tehama Wireless.