Re: [Boost-build] Dependency scanning bug

From: Vladimir Prus (ghost_at_[hidden])
Date: 2007-12-11 13:59:08

On Monday 10 December 2007 23:03:34 Phillip Seaver wrote:
> I don't have the latest version of boost-build (looks like I imported it 
> from the May 15th nightly release), but I couldn't find a similar bug in 
> the tracker.
> 
> One of my co-workers ran into an interesting problem.  He had a 
> directory named "new" in one of his source directories.  Every time he 
> modified the "new" directory, it caused most (if not all) of the C++ 
> files to be rebuilt.  The reason is that it was looking at the timestamp 
> of the "new" directory (instead of the system "new" include, I believe) 
> and seeing that it was newer than the object files.
> 
> Is it possible/reasonable to exclude directories from dependency scanner 
> matching?

Guess it's reasonable, given that gcc ignores directories during
search for header anyway.

I think we'd need to add a flag to target saying 'it's file', and if such
a flag is set, ignore non-files when searching for the target. Rene,
does this seem reasonable to you?

- Volodya