Re: GSoC: OOD detection

[David Boyce]

> It seems some transitional state must be stored within the make 
> process. Maybe building on your idea, the ood_pre() function could 
> return a char pointer which would be null if the target is up to 
> date and otherwise a valid string. This string is then passed into 
> the ood_post() call for it to use as desired. The typical use would 
> be to remember size/date/MD5 of the prereqs from the pre call and 
> check that they're unchanged in the post.

Minor addendum to my proposal: the pointer above would be better as a 
"void *" to allow the implementation to pass any state data it likes.

David B