Re: [jamboost] Problems with header file dependencies in libraries

From: Vladimir Prus (ghost_at_[hidden])
Date: 2002-05-08 08:40:09

hpenne wrote:
> Hi. I'm using boost.build 1.26 and I'm having some difficulties with
> header file dependencies.
>
> The jamfiles of my project build a library target that the main
> executable target depends on.
>
> If I modify a headerfile and specify that I want to build the
> executable, then many of the cpp-files that depend on the header file
> are not updated. If I specify that I want the build the library,
> then everything is updated OK.

I'm not aware about any problems of this kind. Can you provide the simplest 
project for which this problems exists. Can you examine or provide the output 
generated when you pass "-d+12" options to jam in both cases (in should be 
supported in 1.26).

> The library and its jamfile is in a subdirectory two levels down from
> the project root. I have not been able to make boost.build build the
> library if I start the build from the procject root and specify the
> library as the build target, 

Right, because targets are prepended an unique suffix (grist) so that 
identically named targets in different dirs are not confused. You should you 
gristed names if you want to build anything in subdirs. You can find all the 
target names in "-d+12" output.

> but it works if I do this in the
> library's sudirectory. 

Yes, this is supported for user convenience.

- Volodya