[Omake] Recursive invocation of omake

[Benjamin Pierce]

One specific question that I'm wondering about is when it is good to  
invoke omake recursively.

In my current tangle of (gnu) makefiles, when I do 'make X' in the  
top-level directory (where X is 'all', 'clean', etc.), it does a  
little bit of work there and then does '$(MAKE) -C DIR X' for every  
sub-directory DIR; the same process then repeats for sub-sub- 
directories, and so on.

Is this a good way to set things up with omake too?  Or is there  
another way that uses just a single omake process?  Is running  
multiple omakes going to be much less efficient than multiple makes  
(because each one is loading the OMakefiles of the whole project), or  
is this not a big deal?

Advice (or pointers) appreciated!

Thanks,

     - Benjamin