[jamming] Jam dependency scanning with C++

[Kai Backman]

 Hi Craig,

 I'm working with a project with a highly non-flat directory structure and jam
has no problems. The trick is to set the HDRS variable on the source
files. From the jambase manual at:
http://public.perforce.com/public/jam/src/Jambase.html

---<snip>---
HDRS
Directories to be searched for header files. This is used by the
Object rule to:
set up search paths for finding files returned by header scans
add -I flags on compile commands
---<snip>---

 You can set this globally or on source by source basis. I do both. You
can easily check if it's working by using the -dd flags and check for
"Includes" lines. A smart thing is to set them relative to TOP using:

HDRS +=
 [ FDirName $(TOP) my_source_inc ]
 [ FDirName $(TOP) my_other_inc ] ;


 Take care,

 Kai


On 7/19/06, Craig Kadziolka <craigk at wp.pl> wrote:
> > This should work out of the box, assuming that jam knows your include
> > paths.
>
> I think this is exactly my problem. I am not using a flat directory
> structure, and I think that might be why my dependency checking isnt
> working. Does anyone know how to tell Jam what my include paths are?


-- 
Kai Backman, Software Engineer, kaib at google.com